xmpp.chapril.org-conversejs/dist/converse-mobile.js

/** Converse.js
 *
 *  An XMPP chat client that runs in the browser.
 *
 *  Version: 3.0.2
 */

/* jshint ignore:start */
(function (root, factory) {
    if (typeof define === 'function' && define.amd) {
        //Allow using this built library as an AMD module
        //in another project. That other project will only
        //see this AMD call, not the internal modules in
        //the closure below.
        define([], factory);
    } else {
        //Browser globals case.
        root.converse = factory();
    }
}(this, function () {
    //almond, and your modules will be inlined here
/* jshint ignore:end */
/**
 * @license almond 0.3.3 Copyright jQuery Foundation and other contributors.
 * Released under MIT license, http://github.com/requirejs/almond/LICENSE
 */
//Going sloppy to avoid 'use strict' string cost, but strict practices should
//be followed.
/*global setTimeout: false */

var requirejs, require, define;
(function (undef) {
    var main, req, makeMap, handlers,
        defined = {},
        waiting = {},
        config = {},
        defining = {},
        hasOwn = Object.prototype.hasOwnProperty,
        aps = [].slice,
        jsSuffixRegExp = /\.js$/;

    function hasProp(obj, prop) {
        return hasOwn.call(obj, prop);
    }

    /**
     * Given a relative module name, like ./something, normalize it to
     * a real name that can be mapped to a path.
     * @param {String} name the relative name
     * @param {String} baseName a real name that the name arg is relative
     * to.
     * @returns {String} normalized name
     */
    function normalize(name, baseName) {
        var nameParts, nameSegment, mapValue, foundMap, lastIndex,
            foundI, foundStarMap, starI, i, j, part, normalizedBaseParts,
            baseParts = baseName && baseName.split("/"),
            map = config.map,
            starMap = (map && map['*']) || {};

        //Adjust any relative paths.
        if (name) {
            name = name.split('/');
            lastIndex = name.length - 1;

            // If wanting node ID compatibility, strip .js from end
            // of IDs. Have to do this here, and not in nameToUrl
            // because node allows either .js or non .js to map
            // to same file.
            if (config.nodeIdCompat && jsSuffixRegExp.test(name[lastIndex])) {
                name[lastIndex] = name[lastIndex].replace(jsSuffixRegExp, '');
            }

            // Starts with a '.' so need the baseName
            if (name[0].charAt(0) === '.' && baseParts) {
                //Convert baseName to array, and lop off the last part,
                //so that . matches that 'directory' and not name of the baseName's
                //module. For instance, baseName of 'one/two/three', maps to
                //'one/two/three.js', but we want the directory, 'one/two' for
                //this normalization.
                normalizedBaseParts = baseParts.slice(0, baseParts.length - 1);
                name = normalizedBaseParts.concat(name);
            }

            //start trimDots
            for (i = 0; i < name.length; i++) {
                part = name[i];
                if (part === '.') {
                    name.splice(i, 1);
                    i -= 1;
                } else if (part === '..') {
                    // If at the start, or previous value is still ..,
                    // keep them so that when converted to a path it may
                    // still work when converted to a path, even though
                    // as an ID it is less than ideal. In larger point
                    // releases, may be better to just kick out an error.
                    if (i === 0 || (i === 1 && name[2] === '..') || name[i - 1] === '..') {
                        continue;
                    } else if (i > 0) {
                        name.splice(i - 1, 2);
                        i -= 2;
                    }
                }
            }
            //end trimDots

            name = name.join('/');
        }

        //Apply map config if available.
        if ((baseParts || starMap) && map) {
            nameParts = name.split('/');

            for (i = nameParts.length; i > 0; i -= 1) {
                nameSegment = nameParts.slice(0, i).join("/");

                if (baseParts) {
                    //Find the longest baseName segment match in the config.
                    //So, do joins on the biggest to smallest lengths of baseParts.
                    for (j = baseParts.length; j > 0; j -= 1) {
                        mapValue = map[baseParts.slice(0, j).join('/')];

                        //baseName segment has  config, find if it has one for
                        //this name.
                        if (mapValue) {
                            mapValue = mapValue[nameSegment];
                            if (mapValue) {
                                //Match, update name to the new value.
                                foundMap = mapValue;
                                foundI = i;
                                break;
                            }
                        }
                    }
                }

                if (foundMap) {
                    break;
                }

                //Check for a star map match, but just hold on to it,
                //if there is a shorter segment match later in a matching
                //config, then favor over this star map.
                if (!foundStarMap && starMap && starMap[nameSegment]) {
                    foundStarMap = starMap[nameSegment];
                    starI = i;
                }
            }

            if (!foundMap && foundStarMap) {
                foundMap = foundStarMap;
                foundI = starI;
            }

            if (foundMap) {
                nameParts.splice(0, foundI, foundMap);
                name = nameParts.join('/');
            }
        }

        return name;
    }

    function makeRequire(relName, forceSync) {
        return function () {
            //A version of a require function that passes a moduleName
            //value for items that may need to
            //look up paths relative to the moduleName
            var args = aps.call(arguments, 0);

            //If first arg is not require('string'), and there is only
            //one arg, it is the array form without a callback. Insert
            //a null so that the following concat is correct.
            if (typeof args[0] !== 'string' && args.length === 1) {
                args.push(null);
            }
            return req.apply(undef, args.concat([relName, forceSync]));
        };
    }

    function makeNormalize(relName) {
        return function (name) {
            return normalize(name, relName);
        };
    }

    function makeLoad(depName) {
        return function (value) {
            defined[depName] = value;
        };
    }

    function callDep(name) {
        if (hasProp(waiting, name)) {
            var args = waiting[name];
            delete waiting[name];
            defining[name] = true;
            main.apply(undef, args);
        }

        if (!hasProp(defined, name) && !hasProp(defining, name)) {
            throw new Error('No ' + name);
        }
        return defined[name];
    }

    //Turns a plugin!resource to [plugin, resource]
    //with the plugin being undefined if the name
    //did not have a plugin prefix.
    function splitPrefix(name) {
        var prefix,
            index = name ? name.indexOf('!') : -1;
        if (index > -1) {
            prefix = name.substring(0, index);
            name = name.substring(index + 1, name.length);
        }
        return [prefix, name];
    }

    //Creates a parts array for a relName where first part is plugin ID,
    //second part is resource ID. Assumes relName has already been normalized.
    function makeRelParts(relName) {
        return relName ? splitPrefix(relName) : [];
    }

    /**
     * Makes a name map, normalizing the name, and using a plugin
     * for normalization if necessary. Grabs a ref to plugin
     * too, as an optimization.
     */
    makeMap = function (name, relParts) {
        var plugin,
            parts = splitPrefix(name),
            prefix = parts[0],
            relResourceName = relParts[1];

        name = parts[1];

        if (prefix) {
            prefix = normalize(prefix, relResourceName);
            plugin = callDep(prefix);
        }

        //Normalize according
        if (prefix) {
            if (plugin && plugin.normalize) {
                name = plugin.normalize(name, makeNormalize(relResourceName));
            } else {
                name = normalize(name, relResourceName);
            }
        } else {
            name = normalize(name, relResourceName);
            parts = splitPrefix(name);
            prefix = parts[0];
            name = parts[1];
            if (prefix) {
                plugin = callDep(prefix);
            }
        }

        //Using ridiculous property names for space reasons
        return {
            f: prefix ? prefix + '!' + name : name, //fullName
            n: name,
            pr: prefix,
            p: plugin
        };
    };

    function makeConfig(name) {
        return function () {
            return (config && config.config && config.config[name]) || {};
        };
    }

    handlers = {
        require: function (name) {
            return makeRequire(name);
        },
        exports: function (name) {
            var e = defined[name];
            if (typeof e !== 'undefined') {
                return e;
            } else {
                return (defined[name] = {});
            }
        },
        module: function (name) {
            return {
                id: name,
                uri: '',
                exports: defined[name],
                config: makeConfig(name)
            };
        }
    };

    main = function (name, deps, callback, relName) {
        var cjsModule, depName, ret, map, i, relParts,
            args = [],
            callbackType = typeof callback,
            usingExports;

        //Use name if no relName
        relName = relName || name;
        relParts = makeRelParts(relName);

        //Call the callback to define the module, if necessary.
        if (callbackType === 'undefined' || callbackType === 'function') {
            //Pull out the defined dependencies and pass the ordered
            //values to the callback.
            //Default to [require, exports, module] if no deps
            deps = !deps.length && callback.length ? ['require', 'exports', 'module'] : deps;
            for (i = 0; i < deps.length; i += 1) {
                map = makeMap(deps[i], relParts);
                depName = map.f;

                //Fast path CommonJS standard dependencies.
                if (depName === "require") {
                    args[i] = handlers.require(name);
                } else if (depName === "exports") {
                    //CommonJS module spec 1.1
                    args[i] = handlers.exports(name);
                    usingExports = true;
                } else if (depName === "module") {
                    //CommonJS module spec 1.1
                    cjsModule = args[i] = handlers.module(name);
                } else if (hasProp(defined, depName) ||
                           hasProp(waiting, depName) ||
                           hasProp(defining, depName)) {
                    args[i] = callDep(depName);
                } else if (map.p) {
                    map.p.load(map.n, makeRequire(relName, true), makeLoad(depName), {});
                    args[i] = defined[depName];
                } else {
                    throw new Error(name + ' missing ' + depName);
                }
            }

            ret = callback ? callback.apply(defined[name], args) : undefined;

            if (name) {
                //If setting exports via "module" is in play,
                //favor that over return value and exports. After that,
                //favor a non-undefined return value over exports use.
                if (cjsModule && cjsModule.exports !== undef &&
                        cjsModule.exports !== defined[name]) {
                    defined[name] = cjsModule.exports;
                } else if (ret !== undef || !usingExports) {
                    //Use the return value from the function.
                    defined[name] = ret;
                }
            }
        } else if (name) {
            //May just be an object definition for the module. Only
            //worry about defining if have a module name.
            defined[name] = callback;
        }
    };

    requirejs = require = req = function (deps, callback, relName, forceSync, alt) {
        if (typeof deps === "string") {
            if (handlers[deps]) {
                //callback in this case is really relName
                return handlers[deps](callback);
            }
            //Just return the module wanted. In this scenario, the
            //deps arg is the module name, and second arg (if passed)
            //is just the relName.
            //Normalize module name, if it contains . or ..
            return callDep(makeMap(deps, makeRelParts(callback)).f);
        } else if (!deps.splice) {
            //deps is a config object, not an array.
            config = deps;
            if (config.deps) {
                req(config.deps, config.callback);
            }
            if (!callback) {
                return;
            }

            if (callback.splice) {
                //callback is an array, which means it is a dependency list.
                //Adjust args if there are dependencies
                deps = callback;
                callback = relName;
                relName = null;
            } else {
                deps = undef;
            }
        }

        //Support require(['a'])
        callback = callback || function () {};

        //If relName is a function, it is an errback handler,
        //so remove it.
        if (typeof relName === 'function') {
            relName = forceSync;
            forceSync = alt;
        }

        //Simulate async callback;
        if (forceSync) {
            main(undef, deps, callback, relName);
        } else {
            //Using a non-zero value because of concern for what old browsers
            //do, and latest browsers "upgrade" to 4 if lower value is used:
            //http://www.whatwg.org/specs/web-apps/current-work/multipage/timers.html#dom-windowtimers-settimeout:
            //If want a value immediately, use require('id') instead -- something
            //that works in almond on the global level, but not guaranteed and
            //unlikely to work in other AMD implementations.
            setTimeout(function () {
                main(undef, deps, callback, relName);
            }, 4);
        }

        return req;
    };

    /**
     * Just drops the config on the floor, but returns req in case
     * the config return value is used.
     */
    req.config = function (cfg) {
        return req(cfg);
    };

    /**
     * Expose module registry for debugging and tooling
     */
    requirejs._defined = defined;

    define = function (name, deps, callback) {
        if (typeof name !== 'string') {
            throw new Error('See almond README: incorrect module build, no module name');
        }

        //This module may not have dependencies
        if (!deps.splice) {
            //deps is not an array, so probably means
            //an object literal or factory function for
            //the value. Adjust args.
            callback = deps;
            deps = [];
        }

        if (!hasProp(defined, name) && !hasProp(waiting, name)) {
            waiting[name] = [name, deps, callback];
        }
    };

    define.amd = {
        jQuery: true
    };
}());

define("almond", function(){});

/*!
 * Sizzle CSS Selector Engine v2.2.1
 * http://sizzlejs.com/
 *
 * Copyright jQuery Foundation and other contributors
 * Released under the MIT license
 * http://jquery.org/license
 *
 * Date: 2015-10-17
 */
(function( window ) {

var i,
	support,
	Expr,
	getText,
	isXML,
	tokenize,
	compile,
	select,
	outermostContext,
	sortInput,
	hasDuplicate,

	// Local document vars
	setDocument,
	document,
	docElem,
	documentIsHTML,
	rbuggyQSA,
	rbuggyMatches,
	matches,
	contains,

	// Instance-specific data
	expando = "sizzle" + 1 * new Date(),
	preferredDoc = window.document,
	dirruns = 0,
	done = 0,
	classCache = createCache(),
	tokenCache = createCache(),
	compilerCache = createCache(),
	sortOrder = function( a, b ) {
		if ( a === b ) {
			hasDuplicate = true;
		}
		return 0;
	},

	// General-purpose constants
	MAX_NEGATIVE = 1 << 31,

	// Instance methods
	hasOwn = ({}).hasOwnProperty,
	arr = [],
	pop = arr.pop,
	push_native = arr.push,
	push = arr.push,
	slice = arr.slice,
	// Use a stripped-down indexOf as it's faster than native
	// http://jsperf.com/thor-indexof-vs-for/5
	indexOf = function( list, elem ) {
		var i = 0,
			len = list.length;
		for ( ; i < len; i++ ) {
			if ( list[i] === elem ) {
				return i;
			}
		}
		return -1;
	},

	booleans = "checked|selected|async|autofocus|autoplay|controls|defer|disabled|hidden|ismap|loop|multiple|open|readonly|required|scoped",

	// Regular expressions

	// http://www.w3.org/TR/css3-selectors/#whitespace
	whitespace = "[\\x20\\t\\r\\n\\f]",

	// http://www.w3.org/TR/CSS21/syndata.html#value-def-identifier
	identifier = "(?:\\\\.|[\\w-]|[^\\x00-\\xa0])+",

	// Attribute selectors: http://www.w3.org/TR/selectors/#attribute-selectors
	attributes = "\\[" + whitespace + "*(" + identifier + ")(?:" + whitespace +
		// Operator (capture 2)
		"*([*^$|!~]?=)" + whitespace +
		// "Attribute values must be CSS identifiers [capture 5] or strings [capture 3 or capture 4]"
		"*(?:'((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\"|(" + identifier + "))|)" + whitespace +
		"*\\]",

	pseudos = ":(" + identifier + ")(?:\\((" +
		// To reduce the number of selectors needing tokenize in the preFilter, prefer arguments:
		// 1. quoted (capture 3; capture 4 or capture 5)
		"('((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\")|" +
		// 2. simple (capture 6)
		"((?:\\\\.|[^\\\\()[\\]]|" + attributes + ")*)|" +
		// 3. anything else (capture 2)
		".*" +
		")\\)|)",

	// Leading and non-escaped trailing whitespace, capturing some non-whitespace characters preceding the latter
	rwhitespace = new RegExp( whitespace + "+", "g" ),
	rtrim = new RegExp( "^" + whitespace + "+|((?:^|[^\\\\])(?:\\\\.)*)" + whitespace + "+$", "g" ),

	rcomma = new RegExp( "^" + whitespace + "*," + whitespace + "*" ),
	rcombinators = new RegExp( "^" + whitespace + "*([>+~]|" + whitespace + ")" + whitespace + "*" ),

	rattributeQuotes = new RegExp( "=" + whitespace + "*([^\\]'\"]*?)" + whitespace + "*\\]", "g" ),

	rpseudo = new RegExp( pseudos ),
	ridentifier = new RegExp( "^" + identifier + "$" ),

	matchExpr = {
		"ID": new RegExp( "^#(" + identifier + ")" ),
		"CLASS": new RegExp( "^\\.(" + identifier + ")" ),
		"TAG": new RegExp( "^(" + identifier + "|[*])" ),
		"ATTR": new RegExp( "^" + attributes ),
		"PSEUDO": new RegExp( "^" + pseudos ),
		"CHILD": new RegExp( "^:(only|first|last|nth|nth-last)-(child|of-type)(?:\\(" + whitespace +
			"*(even|odd|(([+-]|)(\\d*)n|)" + whitespace + "*(?:([+-]|)" + whitespace +
			"*(\\d+)|))" + whitespace + "*\\)|)", "i" ),
		"bool": new RegExp( "^(?:" + booleans + ")$", "i" ),
		// For use in libraries implementing .is()
		// We use this for POS matching in `select`
		"needsContext": new RegExp( "^" + whitespace + "*[>+~]|:(even|odd|eq|gt|lt|nth|first|last)(?:\\(" +
			whitespace + "*((?:-\\d)?\\d*)" + whitespace + "*\\)|)(?=[^-]|$)", "i" )
	},

	rinputs = /^(?:input|select|textarea|button)$/i,
	rheader = /^h\d$/i,

	rnative = /^[^{]+\{\s*\[native \w/,

	// Easily-parseable/retrievable ID or TAG or CLASS selectors
	rquickExpr = /^(?:#([\w-]+)|(\w+)|\.([\w-]+))$/,

	rsibling = /[+~]/,
	rescape = /'|\\/g,

	// CSS escapes http://www.w3.org/TR/CSS21/syndata.html#escaped-characters
	runescape = new RegExp( "\\\\([\\da-f]{1,6}" + whitespace + "?|(" + whitespace + ")|.)", "ig" ),
	funescape = function( _, escaped, escapedWhitespace ) {
		var high = "0x" + escaped - 0x10000;
		// NaN means non-codepoint
		// Support: Firefox<24
		// Workaround erroneous numeric interpretation of +"0x"
		return high !== high || escapedWhitespace ?
			escaped :
			high < 0 ?
				// BMP codepoint
				String.fromCharCode( high + 0x10000 ) :
				// Supplemental Plane codepoint (surrogate pair)
				String.fromCharCode( high >> 10 | 0xD800, high & 0x3FF | 0xDC00 );
	},

	// Used for iframes
	// See setDocument()
	// Removing the function wrapper causes a "Permission Denied"
	// error in IE
	unloadHandler = function() {
		setDocument();
	};

// Optimize for push.apply( _, NodeList )
try {
	push.apply(
		(arr = slice.call( preferredDoc.childNodes )),
		preferredDoc.childNodes
	);
	// Support: Android<4.0
	// Detect silently failing push.apply
	arr[ preferredDoc.childNodes.length ].nodeType;
} catch ( e ) {
	push = { apply: arr.length ?

		// Leverage slice if possible
		function( target, els ) {
			push_native.apply( target, slice.call(els) );
		} :

		// Support: IE<9
		// Otherwise append directly
		function( target, els ) {
			var j = target.length,
				i = 0;
			// Can't trust NodeList.length
			while ( (target[j++] = els[i++]) ) {}
			target.length = j - 1;
		}
	};
}

function Sizzle( selector, context, results, seed ) {
	var m, i, elem, nid, nidselect, match, groups, newSelector,
		newContext = context && context.ownerDocument,

		// nodeType defaults to 9, since context defaults to document
		nodeType = context ? context.nodeType : 9;

	results = results || [];

	// Return early from calls with invalid selector or context
	if ( typeof selector !== "string" || !selector ||
		nodeType !== 1 && nodeType !== 9 && nodeType !== 11 ) {

		return results;
	}

	// Try to shortcut find operations (as opposed to filters) in HTML documents
	if ( !seed ) {

		if ( ( context ? context.ownerDocument || context : preferredDoc ) !== document ) {
			setDocument( context );
		}
		context = context || document;

		if ( documentIsHTML ) {

			// If the selector is sufficiently simple, try using a "get*By*" DOM method
			// (excepting DocumentFragment context, where the methods don't exist)
			if ( nodeType !== 11 && (match = rquickExpr.exec( selector )) ) {

				// ID selector
				if ( (m = match[1]) ) {

					// Document context
					if ( nodeType === 9 ) {
						if ( (elem = context.getElementById( m )) ) {

							// Support: IE, Opera, Webkit
							// TODO: identify versions
							// getElementById can match elements by name instead of ID
							if ( elem.id === m ) {
								results.push( elem );
								return results;
							}
						} else {
							return results;
						}

					// Element context
					} else {

						// Support: IE, Opera, Webkit
						// TODO: identify versions
						// getElementById can match elements by name instead of ID
						if ( newContext && (elem = newContext.getElementById( m )) &&
							contains( context, elem ) &&
							elem.id === m ) {

							results.push( elem );
							return results;
						}
					}

				// Type selector
				} else if ( match[2] ) {
					push.apply( results, context.getElementsByTagName( selector ) );
					return results;

				// Class selector
				} else if ( (m = match[3]) && support.getElementsByClassName &&
					context.getElementsByClassName ) {

					push.apply( results, context.getElementsByClassName( m ) );
					return results;
				}
			}

			// Take advantage of querySelectorAll
			if ( support.qsa &&
				!compilerCache[ selector + " " ] &&
				(!rbuggyQSA || !rbuggyQSA.test( selector )) ) {

				if ( nodeType !== 1 ) {
					newContext = context;
					newSelector = selector;

				// qSA looks outside Element context, which is not what we want
				// Thanks to Andrew Dupont for this workaround technique
				// Support: IE <=8
				// Exclude object elements
				} else if ( context.nodeName.toLowerCase() !== "object" ) {

					// Capture the context ID, setting it first if necessary
					if ( (nid = context.getAttribute( "id" )) ) {
						nid = nid.replace( rescape, "\\$&" );
					} else {
						context.setAttribute( "id", (nid = expando) );
					}

					// Prefix every selector in the list
					groups = tokenize( selector );
					i = groups.length;
					nidselect = ridentifier.test( nid ) ? "#" + nid : "[id='" + nid + "']";
					while ( i-- ) {
						groups[i] = nidselect + " " + toSelector( groups[i] );
					}
					newSelector = groups.join( "," );

					// Expand context for sibling selectors
					newContext = rsibling.test( selector ) && testContext( context.parentNode ) ||
						context;
				}

				if ( newSelector ) {
					try {
						push.apply( results,
							newContext.querySelectorAll( newSelector )
						);
						return results;
					} catch ( qsaError ) {
					} finally {
						if ( nid === expando ) {
							context.removeAttribute( "id" );
						}
					}
				}
			}
		}
	}

	// All others
	return select( selector.replace( rtrim, "$1" ), context, results, seed );
}

/**
 * Create key-value caches of limited size
 * @returns {function(string, object)} Returns the Object data after storing it on itself with
 *	property name the (space-suffixed) string and (if the cache is larger than Expr.cacheLength)
 *	deleting the oldest entry
 */
function createCache() {
	var keys = [];

	function cache( key, value ) {
		// Use (key + " ") to avoid collision with native prototype properties (see Issue #157)
		if ( keys.push( key + " " ) > Expr.cacheLength ) {
			// Only keep the most recent entries
			delete cache[ keys.shift() ];
		}
		return (cache[ key + " " ] = value);
	}
	return cache;
}

/**
 * Mark a function for special use by Sizzle
 * @param {Function} fn The function to mark
 */
function markFunction( fn ) {
	fn[ expando ] = true;
	return fn;
}

/**
 * Support testing using an element
 * @param {Function} fn Passed the created div and expects a boolean result
 */
function assert( fn ) {
	var div = document.createElement("div");

	try {
		return !!fn( div );
	} catch (e) {
		return false;
	} finally {
		// Remove from its parent by default
		if ( div.parentNode ) {
			div.parentNode.removeChild( div );
		}
		// release memory in IE
		div = null;
	}
}

/**
 * Adds the same handler for all of the specified attrs
 * @param {String} attrs Pipe-separated list of attributes
 * @param {Function} handler The method that will be applied
 */
function addHandle( attrs, handler ) {
	var arr = attrs.split("|"),
		i = arr.length;

	while ( i-- ) {
		Expr.attrHandle[ arr[i] ] = handler;
	}
}

/**
 * Checks document order of two siblings
 * @param {Element} a
 * @param {Element} b
 * @returns {Number} Returns less than 0 if a precedes b, greater than 0 if a follows b
 */
function siblingCheck( a, b ) {
	var cur = b && a,
		diff = cur && a.nodeType === 1 && b.nodeType === 1 &&
			( ~b.sourceIndex || MAX_NEGATIVE ) -
			( ~a.sourceIndex || MAX_NEGATIVE );

	// Use IE sourceIndex if available on both nodes
	if ( diff ) {
		return diff;
	}

	// Check if b follows a
	if ( cur ) {
		while ( (cur = cur.nextSibling) ) {
			if ( cur === b ) {
				return -1;
			}
		}
	}

	return a ? 1 : -1;
}

/**
 * Returns a function to use in pseudos for input types
 * @param {String} type
 */
function createInputPseudo( type ) {
	return function( elem ) {
		var name = elem.nodeName.toLowerCase();
		return name === "input" && elem.type === type;
	};
}

/**
 * Returns a function to use in pseudos for buttons
 * @param {String} type
 */
function createButtonPseudo( type ) {
	return function( elem ) {
		var name = elem.nodeName.toLowerCase();
		return (name === "input" || name === "button") && elem.type === type;
	};
}

/**
 * Returns a function to use in pseudos for positionals
 * @param {Function} fn
 */
function createPositionalPseudo( fn ) {
	return markFunction(function( argument ) {
		argument = +argument;
		return markFunction(function( seed, matches ) {
			var j,
				matchIndexes = fn( [], seed.length, argument ),
				i = matchIndexes.length;

			// Match elements found at the specified indexes
			while ( i-- ) {
				if ( seed[ (j = matchIndexes[i]) ] ) {
					seed[j] = !(matches[j] = seed[j]);
				}
			}
		});
	});
}

/**
 * Checks a node for validity as a Sizzle context
 * @param {Element|Object=} context
 * @returns {Element|Object|Boolean} The input node if acceptable, otherwise a falsy value
 */
function testContext( context ) {
	return context && typeof context.getElementsByTagName !== "undefined" && context;
}

// Expose support vars for convenience
support = Sizzle.support = {};

/**
 * Detects XML nodes
 * @param {Element|Object} elem An element or a document
 * @returns {Boolean} True iff elem is a non-HTML XML node
 */
isXML = Sizzle.isXML = function( elem ) {
	// documentElement is verified for cases where it doesn't yet exist
	// (such as loading iframes in IE - #4833)
	var documentElement = elem && (elem.ownerDocument || elem).documentElement;
	return documentElement ? documentElement.nodeName !== "HTML" : false;
};

/**
 * Sets document-related variables once based on the current document
 * @param {Element|Object} [doc] An element or document object to use to set the document
 * @returns {Object} Returns the current document
 */
setDocument = Sizzle.setDocument = function( node ) {
	var hasCompare, parent,
		doc = node ? node.ownerDocument || node : preferredDoc;

	// Return early if doc is invalid or already selected
	if ( doc === document || doc.nodeType !== 9 || !doc.documentElement ) {
		return document;
	}

	// Update global variables
	document = doc;
	docElem = document.documentElement;
	documentIsHTML = !isXML( document );

	// Support: IE 9-11, Edge
	// Accessing iframe documents after unload throws "permission denied" errors (jQuery #13936)
	if ( (parent = document.defaultView) && parent.top !== parent ) {
		// Support: IE 11
		if ( parent.addEventListener ) {
			parent.addEventListener( "unload", unloadHandler, false );

		// Support: IE 9 - 10 only
		} else if ( parent.attachEvent ) {
			parent.attachEvent( "onunload", unloadHandler );
		}
	}

	/* Attributes
	---------------------------------------------------------------------- */

	// Support: IE<8
	// Verify that getAttribute really returns attributes and not properties
	// (excepting IE8 booleans)
	support.attributes = assert(function( div ) {
		div.className = "i";
		return !div.getAttribute("className");
	});

	/* getElement(s)By*
	---------------------------------------------------------------------- */

	// Check if getElementsByTagName("*") returns only elements
	support.getElementsByTagName = assert(function( div ) {
		div.appendChild( document.createComment("") );
		return !div.getElementsByTagName("*").length;
	});

	// Support: IE<9
	support.getElementsByClassName = rnative.test( document.getElementsByClassName );

	// Support: IE<10
	// Check if getElementById returns elements by name
	// The broken getElementById methods don't pick up programatically-set names,
	// so use a roundabout getElementsByName test
	support.getById = assert(function( div ) {
		docElem.appendChild( div ).id = expando;
		return !document.getElementsByName || !document.getElementsByName( expando ).length;
	});

	// ID find and filter
	if ( support.getById ) {
		Expr.find["ID"] = function( id, context ) {
			if ( typeof context.getElementById !== "undefined" && documentIsHTML ) {
				var m = context.getElementById( id );
				return m ? [ m ] : [];
			}
		};
		Expr.filter["ID"] = function( id ) {
			var attrId = id.replace( runescape, funescape );
			return function( elem ) {
				return elem.getAttribute("id") === attrId;
			};
		};
	} else {
		// Support: IE6/7
		// getElementById is not reliable as a find shortcut
		delete Expr.find["ID"];

		Expr.filter["ID"] =  function( id ) {
			var attrId = id.replace( runescape, funescape );
			return function( elem ) {
				var node = typeof elem.getAttributeNode !== "undefined" &&
					elem.getAttributeNode("id");
				return node && node.value === attrId;
			};
		};
	}

	// Tag
	Expr.find["TAG"] = support.getElementsByTagName ?
		function( tag, context ) {
			if ( typeof context.getElementsByTagName !== "undefined" ) {
				return context.getElementsByTagName( tag );

			// DocumentFragment nodes don't have gEBTN
			} else if ( support.qsa ) {
				return context.querySelectorAll( tag );
			}
		} :

		function( tag, context ) {
			var elem,
				tmp = [],
				i = 0,
				// By happy coincidence, a (broken) gEBTN appears on DocumentFragment nodes too
				results = context.getElementsByTagName( tag );

			// Filter out possible comments
			if ( tag === "*" ) {
				while ( (elem = results[i++]) ) {
					if ( elem.nodeType === 1 ) {
						tmp.push( elem );
					}
				}

				return tmp;
			}
			return results;
		};

	// Class
	Expr.find["CLASS"] = support.getElementsByClassName && function( className, context ) {
		if ( typeof context.getElementsByClassName !== "undefined" && documentIsHTML ) {
			return context.getElementsByClassName( className );
		}
	};

	/* QSA/matchesSelector
	---------------------------------------------------------------------- */

	// QSA and matchesSelector support

	// matchesSelector(:active) reports false when true (IE9/Opera 11.5)
	rbuggyMatches = [];

	// qSa(:focus) reports false when true (Chrome 21)
	// We allow this because of a bug in IE8/9 that throws an error
	// whenever `document.activeElement` is accessed on an iframe
	// So, we allow :focus to pass through QSA all the time to avoid the IE error
	// See http://bugs.jquery.com/ticket/13378
	rbuggyQSA = [];

	if ( (support.qsa = rnative.test( document.querySelectorAll )) ) {
		// Build QSA regex
		// Regex strategy adopted from Diego Perini
		assert(function( div ) {
			// Select is set to empty string on purpose
			// This is to test IE's treatment of not explicitly
			// setting a boolean content attribute,
			// since its presence should be enough
			// http://bugs.jquery.com/ticket/12359
			docElem.appendChild( div ).innerHTML = "<a id='" + expando + "'></a>" +
				"<select id='" + expando + "-\r\\' msallowcapture=''>" +
				"<option selected=''></option></select>";

			// Support: IE8, Opera 11-12.16
			// Nothing should be selected when empty strings follow ^= or $= or *=
			// The test attribute must be unknown in Opera but "safe" for WinRT
			// http://msdn.microsoft.com/en-us/library/ie/hh465388.aspx#attribute_section
			if ( div.querySelectorAll("[msallowcapture^='']").length ) {
				rbuggyQSA.push( "[*^$]=" + whitespace + "*(?:''|\"\")" );
			}

			// Support: IE8
			// Boolean attributes and "value" are not treated correctly
			if ( !div.querySelectorAll("[selected]").length ) {
				rbuggyQSA.push( "\\[" + whitespace + "*(?:value|" + booleans + ")" );
			}

			// Support: Chrome<29, Android<4.4, Safari<7.0+, iOS<7.0+, PhantomJS<1.9.8+
			if ( !div.querySelectorAll( "[id~=" + expando + "-]" ).length ) {
				rbuggyQSA.push("~=");
			}

			// Webkit/Opera - :checked should return selected option elements
			// http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
			// IE8 throws error here and will not see later tests
			if ( !div.querySelectorAll(":checked").length ) {
				rbuggyQSA.push(":checked");
			}

			// Support: Safari 8+, iOS 8+
			// https://bugs.webkit.org/show_bug.cgi?id=136851
			// In-page `selector#id sibing-combinator selector` fails
			if ( !div.querySelectorAll( "a#" + expando + "+*" ).length ) {
				rbuggyQSA.push(".#.+[+~]");
			}
		});

		assert(function( div ) {
			// Support: Windows 8 Native Apps
			// The type and name attributes are restricted during .innerHTML assignment
			var input = document.createElement("input");
			input.setAttribute( "type", "hidden" );
			div.appendChild( input ).setAttribute( "name", "D" );

			// Support: IE8
			// Enforce case-sensitivity of name attribute
			if ( div.querySelectorAll("[name=d]").length ) {
				rbuggyQSA.push( "name" + whitespace + "*[*^$|!~]?=" );
			}

			// FF 3.5 - :enabled/:disabled and hidden elements (hidden elements are still enabled)
			// IE8 throws error here and will not see later tests
			if ( !div.querySelectorAll(":enabled").length ) {
				rbuggyQSA.push( ":enabled", ":disabled" );
			}

			// Opera 10-11 does not throw on post-comma invalid pseudos
			div.querySelectorAll("*,:x");
			rbuggyQSA.push(",.*:");
		});
	}

	if ( (support.matchesSelector = rnative.test( (matches = docElem.matches ||
		docElem.webkitMatchesSelector ||
		docElem.mozMatchesSelector ||
		docElem.oMatchesSelector ||
		docElem.msMatchesSelector) )) ) {

		assert(function( div ) {
			// Check to see if it's possible to do matchesSelector
			// on a disconnected node (IE 9)
			support.disconnectedMatch = matches.call( div, "div" );

			// This should fail with an exception
			// Gecko does not error, returns false instead
			matches.call( div, "[s!='']:x" );
			rbuggyMatches.push( "!=", pseudos );
		});
	}

	rbuggyQSA = rbuggyQSA.length && new RegExp( rbuggyQSA.join("|") );
	rbuggyMatches = rbuggyMatches.length && new RegExp( rbuggyMatches.join("|") );

	/* Contains
	---------------------------------------------------------------------- */
	hasCompare = rnative.test( docElem.compareDocumentPosition );

	// Element contains another
	// Purposefully self-exclusive
	// As in, an element does not contain itself
	contains = hasCompare || rnative.test( docElem.contains ) ?
		function( a, b ) {
			var adown = a.nodeType === 9 ? a.documentElement : a,
				bup = b && b.parentNode;
			return a === bup || !!( bup && bup.nodeType === 1 && (
				adown.contains ?
					adown.contains( bup ) :
					a.compareDocumentPosition && a.compareDocumentPosition( bup ) & 16
			));
		} :
		function( a, b ) {
			if ( b ) {
				while ( (b = b.parentNode) ) {
					if ( b === a ) {
						return true;
					}
				}
			}
			return false;
		};

	/* Sorting
	---------------------------------------------------------------------- */

	// Document order sorting
	sortOrder = hasCompare ?
	function( a, b ) {

		// Flag for duplicate removal
		if ( a === b ) {
			hasDuplicate = true;
			return 0;
		}

		// Sort on method existence if only one input has compareDocumentPosition
		var compare = !a.compareDocumentPosition - !b.compareDocumentPosition;
		if ( compare ) {
			return compare;
		}

		// Calculate position if both inputs belong to the same document
		compare = ( a.ownerDocument || a ) === ( b.ownerDocument || b ) ?
			a.compareDocumentPosition( b ) :

			// Otherwise we know they are disconnected
			1;

		// Disconnected nodes
		if ( compare & 1 ||
			(!support.sortDetached && b.compareDocumentPosition( a ) === compare) ) {

			// Choose the first element that is related to our preferred document
			if ( a === document || a.ownerDocument === preferredDoc && contains(preferredDoc, a) ) {
				return -1;
			}
			if ( b === document || b.ownerDocument === preferredDoc && contains(preferredDoc, b) ) {
				return 1;
			}

			// Maintain original order
			return sortInput ?
				( indexOf( sortInput, a ) - indexOf( sortInput, b ) ) :
				0;
		}

		return compare & 4 ? -1 : 1;
	} :
	function( a, b ) {
		// Exit early if the nodes are identical
		if ( a === b ) {
			hasDuplicate = true;
			return 0;
		}

		var cur,
			i = 0,
			aup = a.parentNode,
			bup = b.parentNode,
			ap = [ a ],
			bp = [ b ];

		// Parentless nodes are either documents or disconnected
		if ( !aup || !bup ) {
			return a === document ? -1 :
				b === document ? 1 :
				aup ? -1 :
				bup ? 1 :
				sortInput ?
				( indexOf( sortInput, a ) - indexOf( sortInput, b ) ) :
				0;

		// If the nodes are siblings, we can do a quick check
		} else if ( aup === bup ) {
			return siblingCheck( a, b );
		}

		// Otherwise we need full lists of their ancestors for comparison
		cur = a;
		while ( (cur = cur.parentNode) ) {
			ap.unshift( cur );
		}
		cur = b;
		while ( (cur = cur.parentNode) ) {
			bp.unshift( cur );
		}

		// Walk down the tree looking for a discrepancy
		while ( ap[i] === bp[i] ) {
			i++;
		}

		return i ?
			// Do a sibling check if the nodes have a common ancestor
			siblingCheck( ap[i], bp[i] ) :

			// Otherwise nodes in our document sort first
			ap[i] === preferredDoc ? -1 :
			bp[i] === preferredDoc ? 1 :
			0;
	};

	return document;
};

Sizzle.matches = function( expr, elements ) {
	return Sizzle( expr, null, null, elements );
};

Sizzle.matchesSelector = function( elem, expr ) {
	// Set document vars if needed
	if ( ( elem.ownerDocument || elem ) !== document ) {
		setDocument( elem );
	}

	// Make sure that attribute selectors are quoted
	expr = expr.replace( rattributeQuotes, "='$1']" );

	if ( support.matchesSelector && documentIsHTML &&
		!compilerCache[ expr + " " ] &&
		( !rbuggyMatches || !rbuggyMatches.test( expr ) ) &&
		( !rbuggyQSA     || !rbuggyQSA.test( expr ) ) ) {

		try {
			var ret = matches.call( elem, expr );

			// IE 9's matchesSelector returns false on disconnected nodes
			if ( ret || support.disconnectedMatch ||
					// As well, disconnected nodes are said to be in a document
					// fragment in IE 9
					elem.document && elem.document.nodeType !== 11 ) {
				return ret;
			}
		} catch (e) {}
	}

	return Sizzle( expr, document, null, [ elem ] ).length > 0;
};

Sizzle.contains = function( context, elem ) {
	// Set document vars if needed
	if ( ( context.ownerDocument || context ) !== document ) {
		setDocument( context );
	}
	return contains( context, elem );
};

Sizzle.attr = function( elem, name ) {
	// Set document vars if needed
	if ( ( elem.ownerDocument || elem ) !== document ) {
		setDocument( elem );
	}

	var fn = Expr.attrHandle[ name.toLowerCase() ],
		// Don't get fooled by Object.prototype properties (jQuery #13807)
		val = fn && hasOwn.call( Expr.attrHandle, name.toLowerCase() ) ?
			fn( elem, name, !documentIsHTML ) :
			undefined;

	return val !== undefined ?
		val :
		support.attributes || !documentIsHTML ?
			elem.getAttribute( name ) :
			(val = elem.getAttributeNode(name)) && val.specified ?
				val.value :
				null;
};

Sizzle.error = function( msg ) {
	throw new Error( "Syntax error, unrecognized expression: " + msg );
};

/**
 * Document sorting and removing duplicates
 * @param {ArrayLike} results
 */
Sizzle.uniqueSort = function( results ) {
	var elem,
		duplicates = [],
		j = 0,
		i = 0;

	// Unless we *know* we can detect duplicates, assume their presence
	hasDuplicate = !support.detectDuplicates;
	sortInput = !support.sortStable && results.slice( 0 );
	results.sort( sortOrder );

	if ( hasDuplicate ) {
		while ( (elem = results[i++]) ) {
			if ( elem === results[ i ] ) {
				j = duplicates.push( i );
			}
		}
		while ( j-- ) {
			results.splice( duplicates[ j ], 1 );
		}
	}

	// Clear input after sorting to release objects
	// See https://github.com/jquery/sizzle/pull/225
	sortInput = null;

	return results;
};

/**
 * Utility function for retrieving the text value of an array of DOM nodes
 * @param {Array|Element} elem
 */
getText = Sizzle.getText = function( elem ) {
	var node,
		ret = "",
		i = 0,
		nodeType = elem.nodeType;

	if ( !nodeType ) {
		// If no nodeType, this is expected to be an array
		while ( (node = elem[i++]) ) {
			// Do not traverse comment nodes
			ret += getText( node );
		}
	} else if ( nodeType === 1 || nodeType === 9 || nodeType === 11 ) {
		// Use textContent for elements
		// innerText usage removed for consistency of new lines (jQuery #11153)
		if ( typeof elem.textContent === "string" ) {
			return elem.textContent;
		} else {
			// Traverse its children
			for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {
				ret += getText( elem );
			}
		}
	} else if ( nodeType === 3 || nodeType === 4 ) {
		return elem.nodeValue;
	}
	// Do not include comment or processing instruction nodes

	return ret;
};

Expr = Sizzle.selectors = {

	// Can be adjusted by the user
	cacheLength: 50,

	createPseudo: markFunction,

	match: matchExpr,

	attrHandle: {},

	find: {},

	relative: {
		">": { dir: "parentNode", first: true },
		" ": { dir: "parentNode" },
		"+": { dir: "previousSibling", first: true },
		"~": { dir: "previousSibling" }
	},

	preFilter: {
		"ATTR": function( match ) {
			match[1] = match[1].replace( runescape, funescape );

			// Move the given value to match[3] whether quoted or unquoted
			match[3] = ( match[3] || match[4] || match[5] || "" ).replace( runescape, funescape );

			if ( match[2] === "~=" ) {
				match[3] = " " + match[3] + " ";
			}

			return match.slice( 0, 4 );
		},

		"CHILD": function( match ) {
			/* matches from matchExpr["CHILD"]
				1 type (only|nth|...)
				2 what (child|of-type)
				3 argument (even|odd|\d*|\d*n([+-]\d+)?|...)
				4 xn-component of xn+y argument ([+-]?\d*n|)
				5 sign of xn-component
				6 x of xn-component
				7 sign of y-component
				8 y of y-component
			*/
			match[1] = match[1].toLowerCase();

			if ( match[1].slice( 0, 3 ) === "nth" ) {
				// nth-* requires argument
				if ( !match[3] ) {
					Sizzle.error( match[0] );
				}

				// numeric x and y parameters for Expr.filter.CHILD
				// remember that false/true cast respectively to 0/1
				match[4] = +( match[4] ? match[5] + (match[6] || 1) : 2 * ( match[3] === "even" || match[3] === "odd" ) );
				match[5] = +( ( match[7] + match[8] ) || match[3] === "odd" );

			// other types prohibit arguments
			} else if ( match[3] ) {
				Sizzle.error( match[0] );
			}

			return match;
		},

		"PSEUDO": function( match ) {
			var excess,
				unquoted = !match[6] && match[2];

			if ( matchExpr["CHILD"].test( match[0] ) ) {
				return null;
			}

			// Accept quoted arguments as-is
			if ( match[3] ) {
				match[2] = match[4] || match[5] || "";

			// Strip excess characters from unquoted arguments
			} else if ( unquoted && rpseudo.test( unquoted ) &&
				// Get excess from tokenize (recursively)
				(excess = tokenize( unquoted, true )) &&
				// advance to the next closing parenthesis
				(excess = unquoted.indexOf( ")", unquoted.length - excess ) - unquoted.length) ) {

				// excess is a negative index
				match[0] = match[0].slice( 0, excess );
				match[2] = unquoted.slice( 0, excess );
			}

			// Return only captures needed by the pseudo filter method (type and argument)
			return match.slice( 0, 3 );
		}
	},

	filter: {

		"TAG": function( nodeNameSelector ) {
			var nodeName = nodeNameSelector.replace( runescape, funescape ).toLowerCase();
			return nodeNameSelector === "*" ?
				function() { return true; } :
				function( elem ) {
					return elem.nodeName && elem.nodeName.toLowerCase() === nodeName;
				};
		},

		"CLASS": function( className ) {
			var pattern = classCache[ className + " " ];

			return pattern ||
				(pattern = new RegExp( "(^|" + whitespace + ")" + className + "(" + whitespace + "|$)" )) &&
				classCache( className, function( elem ) {
					return pattern.test( typeof elem.className === "string" && elem.className || typeof elem.getAttribute !== "undefined" && elem.getAttribute("class") || "" );
				});
		},

		"ATTR": function( name, operator, check ) {
			return function( elem ) {
				var result = Sizzle.attr( elem, name );

				if ( result == null ) {
					return operator === "!=";
				}
				if ( !operator ) {
					return true;
				}

				result += "";

				return operator === "=" ? result === check :
					operator === "!=" ? result !== check :
					operator === "^=" ? check && result.indexOf( check ) === 0 :
					operator === "*=" ? check && result.indexOf( check ) > -1 :
					operator === "$=" ? check && result.slice( -check.length ) === check :
					operator === "~=" ? ( " " + result.replace( rwhitespace, " " ) + " " ).indexOf( check ) > -1 :
					operator === "|=" ? result === check || result.slice( 0, check.length + 1 ) === check + "-" :
					false;
			};
		},

		"CHILD": function( type, what, argument, first, last ) {
			var simple = type.slice( 0, 3 ) !== "nth",
				forward = type.slice( -4 ) !== "last",
				ofType = what === "of-type";

			return first === 1 && last === 0 ?

				// Shortcut for :nth-*(n)
				function( elem ) {
					return !!elem.parentNode;
				} :

				function( elem, context, xml ) {
					var cache, uniqueCache, outerCache, node, nodeIndex, start,
						dir = simple !== forward ? "nextSibling" : "previousSibling",
						parent = elem.parentNode,
						name = ofType && elem.nodeName.toLowerCase(),
						useCache = !xml && !ofType,
						diff = false;

					if ( parent ) {

						// :(first|last|only)-(child|of-type)
						if ( simple ) {
							while ( dir ) {
								node = elem;
								while ( (node = node[ dir ]) ) {
									if ( ofType ?
										node.nodeName.toLowerCase() === name :
										node.nodeType === 1 ) {

										return false;
									}
								}
								// Reverse direction for :only-* (if we haven't yet done so)
								start = dir = type === "only" && !start && "nextSibling";
							}
							return true;
						}

						start = [ forward ? parent.firstChild : parent.lastChild ];

						// non-xml :nth-child(...) stores cache data on `parent`
						if ( forward && useCache ) {

							// Seek `elem` from a previously-cached index

							// ...in a gzip-friendly way
							node = parent;
							outerCache = node[ expando ] || (node[ expando ] = {});

							// Support: IE <9 only
							// Defend against cloned attroperties (jQuery gh-1709)
							uniqueCache = outerCache[ node.uniqueID ] ||
								(outerCache[ node.uniqueID ] = {});

							cache = uniqueCache[ type ] || [];
							nodeIndex = cache[ 0 ] === dirruns && cache[ 1 ];
							diff = nodeIndex && cache[ 2 ];
							node = nodeIndex && parent.childNodes[ nodeIndex ];

							while ( (node = ++nodeIndex && node && node[ dir ] ||

								// Fallback to seeking `elem` from the start
								(diff = nodeIndex = 0) || start.pop()) ) {

								// When found, cache indexes on `parent` and break
								if ( node.nodeType === 1 && ++diff && node === elem ) {
									uniqueCache[ type ] = [ dirruns, nodeIndex, diff ];
									break;
								}
							}

						} else {
							// Use previously-cached element index if available
							if ( useCache ) {
								// ...in a gzip-friendly way
								node = elem;
								outerCache = node[ expando ] || (node[ expando ] = {});

								// Support: IE <9 only
								// Defend against cloned attroperties (jQuery gh-1709)
								uniqueCache = outerCache[ node.uniqueID ] ||
									(outerCache[ node.uniqueID ] = {});

								cache = uniqueCache[ type ] || [];
								nodeIndex = cache[ 0 ] === dirruns && cache[ 1 ];
								diff = nodeIndex;
							}

							// xml :nth-child(...)
							// or :nth-last-child(...) or :nth(-last)?-of-type(...)
							if ( diff === false ) {
								// Use the same loop as above to seek `elem` from the start
								while ( (node = ++nodeIndex && node && node[ dir ] ||
									(diff = nodeIndex = 0) || start.pop()) ) {

									if ( ( ofType ?
										node.nodeName.toLowerCase() === name :
										node.nodeType === 1 ) &&
										++diff ) {

										// Cache the index of each encountered element
										if ( useCache ) {
											outerCache = node[ expando ] || (node[ expando ] = {});

											// Support: IE <9 only
											// Defend against cloned attroperties (jQuery gh-1709)
											uniqueCache = outerCache[ node.uniqueID ] ||
												(outerCache[ node.uniqueID ] = {});

											uniqueCache[ type ] = [ dirruns, diff ];
										}

										if ( node === elem ) {
											break;
										}
									}
								}
							}
						}

						// Incorporate the offset, then check against cycle size
						diff -= last;
						return diff === first || ( diff % first === 0 && diff / first >= 0 );
					}
				};
		},

		"PSEUDO": function( pseudo, argument ) {
			// pseudo-class names are case-insensitive
			// http://www.w3.org/TR/selectors/#pseudo-classes
			// Prioritize by case sensitivity in case custom pseudos are added with uppercase letters
			// Remember that setFilters inherits from pseudos
			var args,
				fn = Expr.pseudos[ pseudo ] || Expr.setFilters[ pseudo.toLowerCase() ] ||
					Sizzle.error( "unsupported pseudo: " + pseudo );

			// The user may use createPseudo to indicate that
			// arguments are needed to create the filter function
			// just as Sizzle does
			if ( fn[ expando ] ) {
				return fn( argument );
			}

			// But maintain support for old signatures
			if ( fn.length > 1 ) {
				args = [ pseudo, pseudo, "", argument ];
				return Expr.setFilters.hasOwnProperty( pseudo.toLowerCase() ) ?
					markFunction(function( seed, matches ) {
						var idx,
							matched = fn( seed, argument ),
							i = matched.length;
						while ( i-- ) {
							idx = indexOf( seed, matched[i] );
							seed[ idx ] = !( matches[ idx ] = matched[i] );
						}
					}) :
					function( elem ) {
						return fn( elem, 0, args );
					};
			}

			return fn;
		}
	},

	pseudos: {
		// Potentially complex pseudos
		"not": markFunction(function( selector ) {
			// Trim the selector passed to compile
			// to avoid treating leading and trailing
			// spaces as combinators
			var input = [],
				results = [],
				matcher = compile( selector.replace( rtrim, "$1" ) );

			return matcher[ expando ] ?
				markFunction(function( seed, matches, context, xml ) {
					var elem,
						unmatched = matcher( seed, null, xml, [] ),
						i = seed.length;

					// Match elements unmatched by `matcher`
					while ( i-- ) {
						if ( (elem = unmatched[i]) ) {
							seed[i] = !(matches[i] = elem);
						}
					}
				}) :
				function( elem, context, xml ) {
					input[0] = elem;
					matcher( input, null, xml, results );
					// Don't keep the element (issue #299)
					input[0] = null;
					return !results.pop();
				};
		}),

		"has": markFunction(function( selector ) {
			return function( elem ) {
				return Sizzle( selector, elem ).length > 0;
			};
		}),

		"contains": markFunction(function( text ) {
			text = text.replace( runescape, funescape );
			return function( elem ) {
				return ( elem.textContent || elem.innerText || getText( elem ) ).indexOf( text ) > -1;
			};
		}),

		// "Whether an element is represented by a :lang() selector
		// is based solely on the element's language value
		// being equal to the identifier C,
		// or beginning with the identifier C immediately followed by "-".
		// The matching of C against the element's language value is performed case-insensitively.
		// The identifier C does not have to be a valid language name."
		// http://www.w3.org/TR/selectors/#lang-pseudo
		"lang": markFunction( function( lang ) {
			// lang value must be a valid identifier
			if ( !ridentifier.test(lang || "") ) {
				Sizzle.error( "unsupported lang: " + lang );
			}
			lang = lang.replace( runescape, funescape ).toLowerCase();
			return function( elem ) {
				var elemLang;
				do {
					if ( (elemLang = documentIsHTML ?
						elem.lang :
						elem.getAttribute("xml:lang") || elem.getAttribute("lang")) ) {

						elemLang = elemLang.toLowerCase();
						return elemLang === lang || elemLang.indexOf( lang + "-" ) === 0;
					}
				} while ( (elem = elem.parentNode) && elem.nodeType === 1 );
				return false;
			};
		}),

		// Miscellaneous
		"target": function( elem ) {
			var hash = window.location && window.location.hash;
			return hash && hash.slice( 1 ) === elem.id;
		},

		"root": function( elem ) {
			return elem === docElem;
		},

		"focus": function( elem ) {
			return elem === document.activeElement && (!document.hasFocus || document.hasFocus()) && !!(elem.type || elem.href || ~elem.tabIndex);
		},

		// Boolean properties
		"enabled": function( elem ) {
			return elem.disabled === false;
		},

		"disabled": function( elem ) {
			return elem.disabled === true;
		},

		"checked": function( elem ) {
			// In CSS3, :checked should return both checked and selected elements
			// http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
			var nodeName = elem.nodeName.toLowerCase();
			return (nodeName === "input" && !!elem.checked) || (nodeName === "option" && !!elem.selected);
		},

		"selected": function( elem ) {
			// Accessing this property makes selected-by-default
			// options in Safari work properly
			if ( elem.parentNode ) {
				elem.parentNode.selectedIndex;
			}

			return elem.selected === true;
		},

		// Contents
		"empty": function( elem ) {
			// http://www.w3.org/TR/selectors/#empty-pseudo
			// :empty is negated by element (1) or content nodes (text: 3; cdata: 4; entity ref: 5),
			//   but not by others (comment: 8; processing instruction: 7; etc.)
			// nodeType < 6 works because attributes (2) do not appear as children
			for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {
				if ( elem.nodeType < 6 ) {
					return false;
				}
			}
			return true;
		},

		"parent": function( elem ) {
			return !Expr.pseudos["empty"]( elem );
		},

		// Element/input types
		"header": function( elem ) {
			return rheader.test( elem.nodeName );
		},

		"input": function( elem ) {
			return rinputs.test( elem.nodeName );
		},

		"button": function( elem ) {
			var name = elem.nodeName.toLowerCase();
			return name === "input" && elem.type === "button" || name === "button";
		},

		"text": function( elem ) {
			var attr;
			return elem.nodeName.toLowerCase() === "input" &&
				elem.type === "text" &&

				// Support: IE<8
				// New HTML5 attribute values (e.g., "search") appear with elem.type === "text"
				( (attr = elem.getAttribute("type")) == null || attr.toLowerCase() === "text" );
		},

		// Position-in-collection
		"first": createPositionalPseudo(function() {
			return [ 0 ];
		}),

		"last": createPositionalPseudo(function( matchIndexes, length ) {
			return [ length - 1 ];
		}),

		"eq": createPositionalPseudo(function( matchIndexes, length, argument ) {
			return [ argument < 0 ? argument + length : argument ];
		}),

		"even": createPositionalPseudo(function( matchIndexes, length ) {
			var i = 0;
			for ( ; i < length; i += 2 ) {
				matchIndexes.push( i );
			}
			return matchIndexes;
		}),

		"odd": createPositionalPseudo(function( matchIndexes, length ) {
			var i = 1;
			for ( ; i < length; i += 2 ) {
				matchIndexes.push( i );
			}
			return matchIndexes;
		}),

		"lt": createPositionalPseudo(function( matchIndexes, length, argument ) {
			var i = argument < 0 ? argument + length : argument;
			for ( ; --i >= 0; ) {
				matchIndexes.push( i );
			}
			return matchIndexes;
		}),

		"gt": createPositionalPseudo(function( matchIndexes, length, argument ) {
			var i = argument < 0 ? argument + length : argument;
			for ( ; ++i < length; ) {
				matchIndexes.push( i );
			}
			return matchIndexes;
		})
	}
};

Expr.pseudos["nth"] = Expr.pseudos["eq"];

// Add button/input type pseudos
for ( i in { radio: true, checkbox: true, file: true, password: true, image: true } ) {
	Expr.pseudos[ i ] = createInputPseudo( i );
}
for ( i in { submit: true, reset: true } ) {
	Expr.pseudos[ i ] = createButtonPseudo( i );
}

// Easy API for creating new setFilters
function setFilters() {}
setFilters.prototype = Expr.filters = Expr.pseudos;
Expr.setFilters = new setFilters();

tokenize = Sizzle.tokenize = function( selector, parseOnly ) {
	var matched, match, tokens, type,
		soFar, groups, preFilters,
		cached = tokenCache[ selector + " " ];

	if ( cached ) {
		return parseOnly ? 0 : cached.slice( 0 );
	}

	soFar = selector;
	groups = [];
	preFilters = Expr.preFilter;

	while ( soFar ) {

		// Comma and first run
		if ( !matched || (match = rcomma.exec( soFar )) ) {
			if ( match ) {
				// Don't consume trailing commas as valid
				soFar = soFar.slice( match[0].length ) || soFar;
			}
			groups.push( (tokens = []) );
		}

		matched = false;

		// Combinators
		if ( (match = rcombinators.exec( soFar )) ) {
			matched = match.shift();
			tokens.push({
				value: matched,
				// Cast descendant combinators to space
				type: match[0].replace( rtrim, " " )
			});
			soFar = soFar.slice( matched.length );
		}

		// Filters
		for ( type in Expr.filter ) {
			if ( (match = matchExpr[ type ].exec( soFar )) && (!preFilters[ type ] ||
				(match = preFilters[ type ]( match ))) ) {
				matched = match.shift();
				tokens.push({
					value: matched,
					type: type,
					matches: match
				});
				soFar = soFar.slice( matched.length );
			}
		}

		if ( !matched ) {
			break;
		}
	}

	// Return the length of the invalid excess
	// if we're just parsing
	// Otherwise, throw an error or return tokens
	return parseOnly ?
		soFar.length :
		soFar ?
			Sizzle.error( selector ) :
			// Cache the tokens
			tokenCache( selector, groups ).slice( 0 );
};

function toSelector( tokens ) {
	var i = 0,
		len = tokens.length,
		selector = "";
	for ( ; i < len; i++ ) {
		selector += tokens[i].value;
	}
	return selector;
}

function addCombinator( matcher, combinator, base ) {
	var dir = combinator.dir,
		checkNonElements = base && dir === "parentNode",
		doneName = done++;

	return combinator.first ?
		// Check against closest ancestor/preceding element
		function( elem, context, xml ) {
			while ( (elem = elem[ dir ]) ) {
				if ( elem.nodeType === 1 || checkNonElements ) {
					return matcher( elem, context, xml );
				}
			}
		} :

		// Check against all ancestor/preceding elements
		function( elem, context, xml ) {
			var oldCache, uniqueCache, outerCache,
				newCache = [ dirruns, doneName ];

			// We can't set arbitrary data on XML nodes, so they don't benefit from combinator caching
			if ( xml ) {
				while ( (elem = elem[ dir ]) ) {
					if ( elem.nodeType === 1 || checkNonElements ) {
						if ( matcher( elem, context, xml ) ) {
							return true;
						}
					}
				}
			} else {
				while ( (elem = elem[ dir ]) ) {
					if ( elem.nodeType === 1 || checkNonElements ) {
						outerCache = elem[ expando ] || (elem[ expando ] = {});

						// Support: IE <9 only
						// Defend against cloned attroperties (jQuery gh-1709)
						uniqueCache = outerCache[ elem.uniqueID ] || (outerCache[ elem.uniqueID ] = {});

						if ( (oldCache = uniqueCache[ dir ]) &&
							oldCache[ 0 ] === dirruns && oldCache[ 1 ] === doneName ) {

							// Assign to newCache so results back-propagate to previous elements
							return (newCache[ 2 ] = oldCache[ 2 ]);
						} else {
							// Reuse newcache so results back-propagate to previous elements
							uniqueCache[ dir ] = newCache;

							// A match means we're done; a fail means we have to keep checking
							if ( (newCache[ 2 ] = matcher( elem, context, xml )) ) {
								return true;
							}
						}
					}
				}
			}
		};
}

function elementMatcher( matchers ) {
	return matchers.length > 1 ?
		function( elem, context, xml ) {
			var i = matchers.length;
			while ( i-- ) {
				if ( !matchers[i]( elem, context, xml ) ) {
					return false;
				}
			}
			return true;
		} :
		matchers[0];
}

function multipleContexts( selector, contexts, results ) {
	var i = 0,
		len = contexts.length;
	for ( ; i < len; i++ ) {
		Sizzle( selector, contexts[i], results );
	}
	return results;
}

function condense( unmatched, map, filter, context, xml ) {
	var elem,
		newUnmatched = [],
		i = 0,
		len = unmatched.length,
		mapped = map != null;

	for ( ; i < len; i++ ) {
		if ( (elem = unmatched[i]) ) {
			if ( !filter || filter( elem, context, xml ) ) {
				newUnmatched.push( elem );
				if ( mapped ) {
					map.push( i );
				}
			}
		}
	}

	return newUnmatched;
}

function setMatcher( preFilter, selector, matcher, postFilter, postFinder, postSelector ) {
	if ( postFilter && !postFilter[ expando ] ) {
		postFilter = setMatcher( postFilter );
	}
	if ( postFinder && !postFinder[ expando ] ) {
		postFinder = setMatcher( postFinder, postSelector );
	}
	return markFunction(function( seed, results, context, xml ) {
		var temp, i, elem,
			preMap = [],
			postMap = [],
			preexisting = results.length,

			// Get initial elements from seed or context
			elems = seed || multipleContexts( selector || "*", context.nodeType ? [ context ] : context, [] ),

			// Prefilter to get matcher input, preserving a map for seed-results synchronization
			matcherIn = preFilter && ( seed || !selector ) ?
				condense( elems, preMap, preFilter, context, xml ) :
				elems,

			matcherOut = matcher ?
				// If we have a postFinder, or filtered seed, or non-seed postFilter or preexisting results,
				postFinder || ( seed ? preFilter : preexisting || postFilter ) ?

					// ...intermediate processing is necessary
					[] :

					// ...otherwise use results directly
					results :
				matcherIn;

		// Find primary matches
		if ( matcher ) {
			matcher( matcherIn, matcherOut, context, xml );
		}

		// Apply postFilter
		if ( postFilter ) {
			temp = condense( matcherOut, postMap );
			postFilter( temp, [], context, xml );

			// Un-match failing elements by moving them back to matcherIn
			i = temp.length;
			while ( i-- ) {
				if ( (elem = temp[i]) ) {
					matcherOut[ postMap[i] ] = !(matcherIn[ postMap[i] ] = elem);
				}
			}
		}

		if ( seed ) {
			if ( postFinder || preFilter ) {
				if ( postFinder ) {
					// Get the final matcherOut by condensing this intermediate into postFinder contexts
					temp = [];
					i = matcherOut.length;
					while ( i-- ) {
						if ( (elem = matcherOut[i]) ) {
							// Restore matcherIn since elem is not yet a final match
							temp.push( (matcherIn[i] = elem) );
						}
					}
					postFinder( null, (matcherOut = []), temp, xml );
				}

				// Move matched elements from seed to results to keep them synchronized
				i = matcherOut.length;
				while ( i-- ) {
					if ( (elem = matcherOut[i]) &&
						(temp = postFinder ? indexOf( seed, elem ) : preMap[i]) > -1 ) {

						seed[temp] = !(results[temp] = elem);
					}
				}
			}

		// Add elements to results, through postFinder if defined
		} else {
			matcherOut = condense(
				matcherOut === results ?
					matcherOut.splice( preexisting, matcherOut.length ) :
					matcherOut
			);
			if ( postFinder ) {
				postFinder( null, results, matcherOut, xml );
			} else {
				push.apply( results, matcherOut );
			}
		}
	});
}

function matcherFromTokens( tokens ) {
	var checkContext, matcher, j,
		len = tokens.length,
		leadingRelative = Expr.relative[ tokens[0].type ],
		implicitRelative = leadingRelative || Expr.relative[" "],
		i = leadingRelative ? 1 : 0,

		// The foundational matcher ensures that elements are reachable from top-level context(s)
		matchContext = addCombinator( function( elem ) {
			return elem === checkContext;
		}, implicitRelative, true ),
		matchAnyContext = addCombinator( function( elem ) {
			return indexOf( checkContext, elem ) > -1;
		}, implicitRelative, true ),
		matchers = [ function( elem, context, xml ) {
			var ret = ( !leadingRelative && ( xml || context !== outermostContext ) ) || (
				(checkContext = context).nodeType ?
					matchContext( elem, context, xml ) :
					matchAnyContext( elem, context, xml ) );
			// Avoid hanging onto element (issue #299)
			checkContext = null;
			return ret;
		} ];

	for ( ; i < len; i++ ) {
		if ( (matcher = Expr.relative[ tokens[i].type ]) ) {
			matchers = [ addCombinator(elementMatcher( matchers ), matcher) ];
		} else {
			matcher = Expr.filter[ tokens[i].type ].apply( null, tokens[i].matches );

			// Return special upon seeing a positional matcher
			if ( matcher[ expando ] ) {
				// Find the next relative operator (if any) for proper handling
				j = ++i;
				for ( ; j < len; j++ ) {
					if ( Expr.relative[ tokens[j].type ] ) {
						break;
					}
				}
				return setMatcher(
					i > 1 && elementMatcher( matchers ),
					i > 1 && toSelector(
						// If the preceding token was a descendant combinator, insert an implicit any-element `*`
						tokens.slice( 0, i - 1 ).concat({ value: tokens[ i - 2 ].type === " " ? "*" : "" })
					).replace( rtrim, "$1" ),
					matcher,
					i < j && matcherFromTokens( tokens.slice( i, j ) ),
					j < len && matcherFromTokens( (tokens = tokens.slice( j )) ),
					j < len && toSelector( tokens )
				);
			}
			matchers.push( matcher );
		}
	}

	return elementMatcher( matchers );
}

function matcherFromGroupMatchers( elementMatchers, setMatchers ) {
	var bySet = setMatchers.length > 0,
		byElement = elementMatchers.length > 0,
		superMatcher = function( seed, context, xml, results, outermost ) {
			var elem, j, matcher,
				matchedCount = 0,
				i = "0",
				unmatched = seed && [],
				setMatched = [],
				contextBackup = outermostContext,
				// We must always have either seed elements or outermost context
				elems = seed || byElement && Expr.find["TAG"]( "*", outermost ),
				// Use integer dirruns iff this is the outermost matcher
				dirrunsUnique = (dirruns += contextBackup == null ? 1 : Math.random() || 0.1),
				len = elems.length;

			if ( outermost ) {
				outermostContext = context === document || context || outermost;
			}

			// Add elements passing elementMatchers directly to results
			// Support: IE<9, Safari
			// Tolerate NodeList properties (IE: "length"; Safari: <number>) matching elements by id
			for ( ; i !== len && (elem = elems[i]) != null; i++ ) {
				if ( byElement && elem ) {
					j = 0;
					if ( !context && elem.ownerDocument !== document ) {
						setDocument( elem );
						xml = !documentIsHTML;
					}
					while ( (matcher = elementMatchers[j++]) ) {
						if ( matcher( elem, context || document, xml) ) {
							results.push( elem );
							break;
						}
					}
					if ( outermost ) {
						dirruns = dirrunsUnique;
					}
				}

				// Track unmatched elements for set filters
				if ( bySet ) {
					// They will have gone through all possible matchers
					if ( (elem = !matcher && elem) ) {
						matchedCount--;
					}

					// Lengthen the array for every element, matched or not
					if ( seed ) {
						unmatched.push( elem );
					}
				}
			}

			// `i` is now the count of elements visited above, and adding it to `matchedCount`
			// makes the latter nonnegative.
			matchedCount += i;

			// Apply set filters to unmatched elements
			// NOTE: This can be skipped if there are no unmatched elements (i.e., `matchedCount`
			// equals `i`), unless we didn't visit _any_ elements in the above loop because we have
			// no element matchers and no seed.
			// Incrementing an initially-string "0" `i` allows `i` to remain a string only in that
			// case, which will result in a "00" `matchedCount` that differs from `i` but is also
			// numerically zero.
			if ( bySet && i !== matchedCount ) {
				j = 0;
				while ( (matcher = setMatchers[j++]) ) {
					matcher( unmatched, setMatched, context, xml );
				}

				if ( seed ) {
					// Reintegrate element matches to eliminate the need for sorting
					if ( matchedCount > 0 ) {
						while ( i-- ) {
							if ( !(unmatched[i] || setMatched[i]) ) {
								setMatched[i] = pop.call( results );
							}
						}
					}

					// Discard index placeholder values to get only actual matches
					setMatched = condense( setMatched );
				}

				// Add matches to results
				push.apply( results, setMatched );

				// Seedless set matches succeeding multiple successful matchers stipulate sorting
				if ( outermost && !seed && setMatched.length > 0 &&
					( matchedCount + setMatchers.length ) > 1 ) {

					Sizzle.uniqueSort( results );
				}
			}

			// Override manipulation of globals by nested matchers
			if ( outermost ) {
				dirruns = dirrunsUnique;
				outermostContext = contextBackup;
			}

			return unmatched;
		};

	return bySet ?
		markFunction( superMatcher ) :
		superMatcher;
}

compile = Sizzle.compile = function( selector, match /* Internal Use Only */ ) {
	var i,
		setMatchers = [],
		elementMatchers = [],
		cached = compilerCache[ selector + " " ];

	if ( !cached ) {
		// Generate a function of recursive functions that can be used to check each element
		if ( !match ) {
			match = tokenize( selector );
		}
		i = match.length;
		while ( i-- ) {
			cached = matcherFromTokens( match[i] );
			if ( cached[ expando ] ) {
				setMatchers.push( cached );
			} else {
				elementMatchers.push( cached );
			}
		}

		// Cache the compiled function
		cached = compilerCache( selector, matcherFromGroupMatchers( elementMatchers, setMatchers ) );

		// Save selector and tokenization
		cached.selector = selector;
	}
	return cached;
};

/**
 * A low-level selection function that works with Sizzle's compiled
 *  selector functions
 * @param {String|Function} selector A selector or a pre-compiled
 *  selector function built with Sizzle.compile
 * @param {Element} context
 * @param {Array} [results]
 * @param {Array} [seed] A set of elements to match against
 */
select = Sizzle.select = function( selector, context, results, seed ) {
	var i, tokens, token, type, find,
		compiled = typeof selector === "function" && selector,
		match = !seed && tokenize( (selector = compiled.selector || selector) );

	results = results || [];

	// Try to minimize operations if there is only one selector in the list and no seed
	// (the latter of which guarantees us context)
	if ( match.length === 1 ) {

		// Reduce context if the leading compound selector is an ID
		tokens = match[0] = match[0].slice( 0 );
		if ( tokens.length > 2 && (token = tokens[0]).type === "ID" &&
				support.getById && context.nodeType === 9 && documentIsHTML &&
				Expr.relative[ tokens[1].type ] ) {

			context = ( Expr.find["ID"]( token.matches[0].replace(runescape, funescape), context ) || [] )[0];
			if ( !context ) {
				return results;

			// Precompiled matchers will still verify ancestry, so step up a level
			} else if ( compiled ) {
				context = context.parentNode;
			}

			selector = selector.slice( tokens.shift().value.length );
		}

		// Fetch a seed set for right-to-left matching
		i = matchExpr["needsContext"].test( selector ) ? 0 : tokens.length;
		while ( i-- ) {
			token = tokens[i];

			// Abort if we hit a combinator
			if ( Expr.relative[ (type = token.type) ] ) {
				break;
			}
			if ( (find = Expr.find[ type ]) ) {
				// Search, expanding context for leading sibling combinators
				if ( (seed = find(
					token.matches[0].replace( runescape, funescape ),
					rsibling.test( tokens[0].type ) && testContext( context.parentNode ) || context
				)) ) {

					// If seed is empty or no tokens remain, we can return early
					tokens.splice( i, 1 );
					selector = seed.length && toSelector( tokens );
					if ( !selector ) {
						push.apply( results, seed );
						return results;
					}

					break;
				}
			}
		}
	}

	// Compile and execute a filtering function if one is not provided
	// Provide `match` to avoid retokenization if we modified the selector above
	( compiled || compile( selector, match ) )(
		seed,
		context,
		!documentIsHTML,
		results,
		!context || rsibling.test( selector ) && testContext( context.parentNode ) || context
	);
	return results;
};

// One-time assignments

// Sort stability
support.sortStable = expando.split("").sort( sortOrder ).join("") === expando;

// Support: Chrome 14-35+
// Always assume duplicates if they aren't passed to the comparison function
support.detectDuplicates = !!hasDuplicate;

// Initialize against the default document
setDocument();

// Support: Webkit<537.32 - Safari 6.0.3/Chrome 25 (fixed in Chrome 27)
// Detached nodes confoundingly follow *each other*
support.sortDetached = assert(function( div1 ) {
	// Should return 1, but returns 4 (following)
	return div1.compareDocumentPosition( document.createElement("div") ) & 1;
});

// Support: IE<8
// Prevent attribute/property "interpolation"
// http://msdn.microsoft.com/en-us/library/ms536429%28VS.85%29.aspx
if ( !assert(function( div ) {
	div.innerHTML = "<a href='#'></a>";
	return div.firstChild.getAttribute("href") === "#" ;
}) ) {
	addHandle( "type|href|height|width", function( elem, name, isXML ) {
		if ( !isXML ) {
			return elem.getAttribute( name, name.toLowerCase() === "type" ? 1 : 2 );
		}
	});
}

// Support: IE<9
// Use defaultValue in place of getAttribute("value")
if ( !support.attributes || !assert(function( div ) {
	div.innerHTML = "<input/>";
	div.firstChild.setAttribute( "value", "" );
	return div.firstChild.getAttribute( "value" ) === "";
}) ) {
	addHandle( "value", function( elem, name, isXML ) {
		if ( !isXML && elem.nodeName.toLowerCase() === "input" ) {
			return elem.defaultValue;
		}
	});
}

// Support: IE<9
// Use getAttributeNode to fetch booleans when getAttribute lies
if ( !assert(function( div ) {
	return div.getAttribute("disabled") == null;
}) ) {
	addHandle( booleans, function( elem, name, isXML ) {
		var val;
		if ( !isXML ) {
			return elem[ name ] === true ? name.toLowerCase() :
					(val = elem.getAttributeNode( name )) && val.specified ?
					val.value :
				null;
		}
	});
}

// EXPOSE
if ( typeof define === "function" && define.amd ) {
	define('sizzle',[],function() { return Sizzle; });
// Sizzle requires that there be a global window in Common-JS like environments
} else if ( typeof module !== "undefined" && module.exports ) {
	module.exports = Sizzle;
} else {
	window.Sizzle = Sizzle;
}
// EXPOSE

})( window );

/*!
 * jQuery JavaScript Library v2.2.3
 * http://jquery.com/
 *
 * Includes Sizzle.js
 * http://sizzlejs.com/
 *
 * Copyright jQuery Foundation and other contributors
 * Released under the MIT license
 * http://jquery.org/license
 *
 * Date: 2016-04-05T19:26Z
 */

(function( global, factory ) {

	if ( typeof module === "object" && typeof module.exports === "object" ) {
		// For CommonJS and CommonJS-like environments where a proper `window`
		// is present, execute the factory and get jQuery.
		// For environments that do not have a `window` with a `document`
		// (such as Node.js), expose a factory as module.exports.
		// This accentuates the need for the creation of a real `window`.
		// e.g. var jQuery = require("jquery")(window);
		// See ticket #14549 for more info.
		module.exports = global.document ?
			factory( global, true ) :
			function( w ) {
				if ( !w.document ) {
					throw new Error( "jQuery requires a window with a document" );
				}
				return factory( w );
			};
	} else {
		factory( global );
	}

// Pass this if window is not defined yet
}(typeof window !== "undefined" ? window : this, function( window, noGlobal ) {

// Support: Firefox 18+
// Can't be in strict mode, several libs including ASP.NET trace
// the stack via arguments.caller.callee and Firefox dies if
// you try to trace through "use strict" call chains. (#13335)
//"use strict";
var arr = [];

var document = window.document;

var slice = arr.slice;

var concat = arr.concat;

var push = arr.push;

var indexOf = arr.indexOf;

var class2type = {};

var toString = class2type.toString;

var hasOwn = class2type.hasOwnProperty;

var support = {};



var
	version = "2.2.3",

	// Define a local copy of jQuery
	jQuery = function( selector, context ) {

		// The jQuery object is actually just the init constructor 'enhanced'
		// Need init if jQuery is called (just allow error to be thrown if not included)
		return new jQuery.fn.init( selector, context );
	},

	// Support: Android<4.1
	// Make sure we trim BOM and NBSP
	rtrim = /^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g,

	// Matches dashed string for camelizing
	rmsPrefix = /^-ms-/,
	rdashAlpha = /-([\da-z])/gi,

	// Used by jQuery.camelCase as callback to replace()
	fcamelCase = function( all, letter ) {
		return letter.toUpperCase();
	};

jQuery.fn = jQuery.prototype = {

	// The current version of jQuery being used
	jquery: version,

	constructor: jQuery,

	// Start with an empty selector
	selector: "",

	// The default length of a jQuery object is 0
	length: 0,

	toArray: function() {
		return slice.call( this );
	},

	// Get the Nth element in the matched element set OR
	// Get the whole matched element set as a clean array
	get: function( num ) {
		return num != null ?

			// Return just the one element from the set
			( num < 0 ? this[ num + this.length ] : this[ num ] ) :

			// Return all the elements in a clean array
			slice.call( this );
	},

	// Take an array of elements and push it onto the stack
	// (returning the new matched element set)
	pushStack: function( elems ) {

		// Build a new jQuery matched element set
		var ret = jQuery.merge( this.constructor(), elems );

		// Add the old object onto the stack (as a reference)
		ret.prevObject = this;
		ret.context = this.context;

		// Return the newly-formed element set
		return ret;
	},

	// Execute a callback for every element in the matched set.
	each: function( callback ) {
		return jQuery.each( this, callback );
	},

	map: function( callback ) {
		return this.pushStack( jQuery.map( this, function( elem, i ) {
			return callback.call( elem, i, elem );
		} ) );
	},

	slice: function() {
		return this.pushStack( slice.apply( this, arguments ) );
	},

	first: function() {
		return this.eq( 0 );
	},

	last: function() {
		return this.eq( -1 );
	},

	eq: function( i ) {
		var len = this.length,
			j = +i + ( i < 0 ? len : 0 );
		return this.pushStack( j >= 0 && j < len ? [ this[ j ] ] : [] );
	},

	end: function() {
		return this.prevObject || this.constructor();
	},

	// For internal use only.
	// Behaves like an Array's method, not like a jQuery method.
	push: push,
	sort: arr.sort,
	splice: arr.splice
};

jQuery.extend = jQuery.fn.extend = function() {
	var options, name, src, copy, copyIsArray, clone,
		target = arguments[ 0 ] || {},
		i = 1,
		length = arguments.length,
		deep = false;

	// Handle a deep copy situation
	if ( typeof target === "boolean" ) {
		deep = target;

		// Skip the boolean and the target
		target = arguments[ i ] || {};
		i++;
	}

	// Handle case when target is a string or something (possible in deep copy)
	if ( typeof target !== "object" && !jQuery.isFunction( target ) ) {
		target = {};
	}

	// Extend jQuery itself if only one argument is passed
	if ( i === length ) {
		target = this;
		i--;
	}

	for ( ; i < length; i++ ) {

		// Only deal with non-null/undefined values
		if ( ( options = arguments[ i ] ) != null ) {

			// Extend the base object
			for ( name in options ) {
				src = target[ name ];
				copy = options[ name ];

				// Prevent never-ending loop
				if ( target === copy ) {
					continue;
				}

				// Recurse if we're merging plain objects or arrays
				if ( deep && copy && ( jQuery.isPlainObject( copy ) ||
					( copyIsArray = jQuery.isArray( copy ) ) ) ) {

					if ( copyIsArray ) {
						copyIsArray = false;
						clone = src && jQuery.isArray( src ) ? src : [];

					} else {
						clone = src && jQuery.isPlainObject( src ) ? src : {};
					}

					// Never move original objects, clone them
					target[ name ] = jQuery.extend( deep, clone, copy );

				// Don't bring in undefined values
				} else if ( copy !== undefined ) {
					target[ name ] = copy;
				}
			}
		}
	}

	// Return the modified object
	return target;
};

jQuery.extend( {

	// Unique for each copy of jQuery on the page
	expando: "jQuery" + ( version + Math.random() ).replace( /\D/g, "" ),

	// Assume jQuery is ready without the ready module
	isReady: true,

	error: function( msg ) {
		throw new Error( msg );
	},

	noop: function() {},

	isFunction: function( obj ) {
		return jQuery.type( obj ) === "function";
	},

	isArray: Array.isArray,

	isWindow: function( obj ) {
		return obj != null && obj === obj.window;
	},

	isNumeric: function( obj ) {

		// parseFloat NaNs numeric-cast false positives (null|true|false|"")
		// ...but misinterprets leading-number strings, particularly hex literals ("0x...")
		// subtraction forces infinities to NaN
		// adding 1 corrects loss of precision from parseFloat (#15100)
		var realStringObj = obj && obj.toString();
		return !jQuery.isArray( obj ) && ( realStringObj - parseFloat( realStringObj ) + 1 ) >= 0;
	},

	isPlainObject: function( obj ) {
		var key;

		// Not plain objects:
		// - Any object or value whose internal [[Class]] property is not "[object Object]"
		// - DOM nodes
		// - window
		if ( jQuery.type( obj ) !== "object" || obj.nodeType || jQuery.isWindow( obj ) ) {
			return false;
		}

		// Not own constructor property must be Object
		if ( obj.constructor &&
				!hasOwn.call( obj, "constructor" ) &&
				!hasOwn.call( obj.constructor.prototype || {}, "isPrototypeOf" ) ) {
			return false;
		}

		// Own properties are enumerated firstly, so to speed up,
		// if last one is own, then all properties are own
		for ( key in obj ) {}

		return key === undefined || hasOwn.call( obj, key );
	},

	isEmptyObject: function( obj ) {
		var name;
		for ( name in obj ) {
			return false;
		}
		return true;
	},

	type: function( obj ) {
		if ( obj == null ) {
			return obj + "";
		}

		// Support: Android<4.0, iOS<6 (functionish RegExp)
		return typeof obj === "object" || typeof obj === "function" ?
			class2type[ toString.call( obj ) ] || "object" :
			typeof obj;
	},

	// Evaluates a script in a global context
	globalEval: function( code ) {
		var script,
			indirect = eval;

		code = jQuery.trim( code );

		if ( code ) {

			// If the code includes a valid, prologue position
			// strict mode pragma, execute code by injecting a
			// script tag into the document.
			if ( code.indexOf( "use strict" ) === 1 ) {
				script = document.createElement( "script" );
				script.text = code;
				document.head.appendChild( script ).parentNode.removeChild( script );
			} else {

				// Otherwise, avoid the DOM node creation, insertion
				// and removal by using an indirect global eval

				indirect( code );
			}
		}
	},

	// Convert dashed to camelCase; used by the css and data modules
	// Support: IE9-11+
	// Microsoft forgot to hump their vendor prefix (#9572)
	camelCase: function( string ) {
		return string.replace( rmsPrefix, "ms-" ).replace( rdashAlpha, fcamelCase );
	},

	nodeName: function( elem, name ) {
		return elem.nodeName && elem.nodeName.toLowerCase() === name.toLowerCase();
	},

	each: function( obj, callback ) {
		var length, i = 0;

		if ( isArrayLike( obj ) ) {
			length = obj.length;
			for ( ; i < length; i++ ) {
				if ( callback.call( obj[ i ], i, obj[ i ] ) === false ) {
					break;
				}
			}
		} else {
			for ( i in obj ) {
				if ( callback.call( obj[ i ], i, obj[ i ] ) === false ) {
					break;
				}
			}
		}

		return obj;
	},

	// Support: Android<4.1
	trim: function( text ) {
		return text == null ?
			"" :
			( text + "" ).replace( rtrim, "" );
	},

	// results is for internal usage only
	makeArray: function( arr, results ) {
		var ret = results || [];

		if ( arr != null ) {
			if ( isArrayLike( Object( arr ) ) ) {
				jQuery.merge( ret,
					typeof arr === "string" ?
					[ arr ] : arr
				);
			} else {
				push.call( ret, arr );
			}
		}

		return ret;
	},

	inArray: function( elem, arr, i ) {
		return arr == null ? -1 : indexOf.call( arr, elem, i );
	},

	merge: function( first, second ) {
		var len = +second.length,
			j = 0,
			i = first.length;

		for ( ; j < len; j++ ) {
			first[ i++ ] = second[ j ];
		}

		first.length = i;

		return first;
	},

	grep: function( elems, callback, invert ) {
		var callbackInverse,
			matches = [],
			i = 0,
			length = elems.length,
			callbackExpect = !invert;

		// Go through the array, only saving the items
		// that pass the validator function
		for ( ; i < length; i++ ) {
			callbackInverse = !callback( elems[ i ], i );
			if ( callbackInverse !== callbackExpect ) {
				matches.push( elems[ i ] );
			}
		}

		return matches;
	},

	// arg is for internal usage only
	map: function( elems, callback, arg ) {
		var length, value,
			i = 0,
			ret = [];

		// Go through the array, translating each of the items to their new values
		if ( isArrayLike( elems ) ) {
			length = elems.length;
			for ( ; i < length; i++ ) {
				value = callback( elems[ i ], i, arg );

				if ( value != null ) {
					ret.push( value );
				}
			}

		// Go through every key on the object,
		} else {
			for ( i in elems ) {
				value = callback( elems[ i ], i, arg );

				if ( value != null ) {
					ret.push( value );
				}
			}
		}

		// Flatten any nested arrays
		return concat.apply( [], ret );
	},

	// A global GUID counter for objects
	guid: 1,

	// Bind a function to a context, optionally partially applying any
	// arguments.
	proxy: function( fn, context ) {
		var tmp, args, proxy;

		if ( typeof context === "string" ) {
			tmp = fn[ context ];
			context = fn;
			fn = tmp;
		}

		// Quick check to determine if target is callable, in the spec
		// this throws a TypeError, but we will just return undefined.
		if ( !jQuery.isFunction( fn ) ) {
			return undefined;
		}

		// Simulated bind
		args = slice.call( arguments, 2 );
		proxy = function() {
			return fn.apply( context || this, args.concat( slice.call( arguments ) ) );
		};

		// Set the guid of unique handler to the same of original handler, so it can be removed
		proxy.guid = fn.guid = fn.guid || jQuery.guid++;

		return proxy;
	},

	now: Date.now,

	// jQuery.support is not used in Core but other projects attach their
	// properties to it so it needs to exist.
	support: support
} );

// JSHint would error on this code due to the Symbol not being defined in ES5.
// Defining this global in .jshintrc would create a danger of using the global
// unguarded in another place, it seems safer to just disable JSHint for these
// three lines.
/* jshint ignore: start */
if ( typeof Symbol === "function" ) {
	jQuery.fn[ Symbol.iterator ] = arr[ Symbol.iterator ];
}
/* jshint ignore: end */

// Populate the class2type map
jQuery.each( "Boolean Number String Function Array Date RegExp Object Error Symbol".split( " " ),
function( i, name ) {
	class2type[ "[object " + name + "]" ] = name.toLowerCase();
} );

function isArrayLike( obj ) {

	// Support: iOS 8.2 (not reproducible in simulator)
	// `in` check used to prevent JIT error (gh-2145)
	// hasOwn isn't used here due to false negatives
	// regarding Nodelist length in IE
	var length = !!obj && "length" in obj && obj.length,
		type = jQuery.type( obj );

	if ( type === "function" || jQuery.isWindow( obj ) ) {
		return false;
	}

	return type === "array" || length === 0 ||
		typeof length === "number" && length > 0 && ( length - 1 ) in obj;
}
var Sizzle =
/*!
 * Sizzle CSS Selector Engine v2.2.1
 * http://sizzlejs.com/
 *
 * Copyright jQuery Foundation and other contributors
 * Released under the MIT license
 * http://jquery.org/license
 *
 * Date: 2015-10-17
 */
(function( window ) {

var i,
	support,
	Expr,
	getText,
	isXML,
	tokenize,
	compile,
	select,
	outermostContext,
	sortInput,
	hasDuplicate,

	// Local document vars
	setDocument,
	document,
	docElem,
	documentIsHTML,
	rbuggyQSA,
	rbuggyMatches,
	matches,
	contains,

	// Instance-specific data
	expando = "sizzle" + 1 * new Date(),
	preferredDoc = window.document,
	dirruns = 0,
	done = 0,
	classCache = createCache(),
	tokenCache = createCache(),
	compilerCache = createCache(),
	sortOrder = function( a, b ) {
		if ( a === b ) {
			hasDuplicate = true;
		}
		return 0;
	},

	// General-purpose constants
	MAX_NEGATIVE = 1 << 31,

	// Instance methods
	hasOwn = ({}).hasOwnProperty,
	arr = [],
	pop = arr.pop,
	push_native = arr.push,
	push = arr.push,
	slice = arr.slice,
	// Use a stripped-down indexOf as it's faster than native
	// http://jsperf.com/thor-indexof-vs-for/5
	indexOf = function( list, elem ) {
		var i = 0,
			len = list.length;
		for ( ; i < len; i++ ) {
			if ( list[i] === elem ) {
				return i;
			}
		}
		return -1;
	},

	booleans = "checked|selected|async|autofocus|autoplay|controls|defer|disabled|hidden|ismap|loop|multiple|open|readonly|required|scoped",

	// Regular expressions

	// http://www.w3.org/TR/css3-selectors/#whitespace
	whitespace = "[\\x20\\t\\r\\n\\f]",

	// http://www.w3.org/TR/CSS21/syndata.html#value-def-identifier
	identifier = "(?:\\\\.|[\\w-]|[^\\x00-\\xa0])+",

	// Attribute selectors: http://www.w3.org/TR/selectors/#attribute-selectors
	attributes = "\\[" + whitespace + "*(" + identifier + ")(?:" + whitespace +
		// Operator (capture 2)
		"*([*^$|!~]?=)" + whitespace +
		// "Attribute values must be CSS identifiers [capture 5] or strings [capture 3 or capture 4]"
		"*(?:'((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\"|(" + identifier + "))|)" + whitespace +
		"*\\]",

	pseudos = ":(" + identifier + ")(?:\\((" +
		// To reduce the number of selectors needing tokenize in the preFilter, prefer arguments:
		// 1. quoted (capture 3; capture 4 or capture 5)
		"('((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\")|" +
		// 2. simple (capture 6)
		"((?:\\\\.|[^\\\\()[\\]]|" + attributes + ")*)|" +
		// 3. anything else (capture 2)
		".*" +
		")\\)|)",

	// Leading and non-escaped trailing whitespace, capturing some non-whitespace characters preceding the latter
	rwhitespace = new RegExp( whitespace + "+", "g" ),
	rtrim = new RegExp( "^" + whitespace + "+|((?:^|[^\\\\])(?:\\\\.)*)" + whitespace + "+$", "g" ),

	rcomma = new RegExp( "^" + whitespace + "*," + whitespace + "*" ),
	rcombinators = new RegExp( "^" + whitespace + "*([>+~]|" + whitespace + ")" + whitespace + "*" ),

	rattributeQuotes = new RegExp( "=" + whitespace + "*([^\\]'\"]*?)" + whitespace + "*\\]", "g" ),

	rpseudo = new RegExp( pseudos ),
	ridentifier = new RegExp( "^" + identifier + "$" ),

	matchExpr = {
		"ID": new RegExp( "^#(" + identifier + ")" ),
		"CLASS": new RegExp( "^\\.(" + identifier + ")" ),
		"TAG": new RegExp( "^(" + identifier + "|[*])" ),
		"ATTR": new RegExp( "^" + attributes ),
		"PSEUDO": new RegExp( "^" + pseudos ),
		"CHILD": new RegExp( "^:(only|first|last|nth|nth-last)-(child|of-type)(?:\\(" + whitespace +
			"*(even|odd|(([+-]|)(\\d*)n|)" + whitespace + "*(?:([+-]|)" + whitespace +
			"*(\\d+)|))" + whitespace + "*\\)|)", "i" ),
		"bool": new RegExp( "^(?:" + booleans + ")$", "i" ),
		// For use in libraries implementing .is()
		// We use this for POS matching in `select`
		"needsContext": new RegExp( "^" + whitespace + "*[>+~]|:(even|odd|eq|gt|lt|nth|first|last)(?:\\(" +
			whitespace + "*((?:-\\d)?\\d*)" + whitespace + "*\\)|)(?=[^-]|$)", "i" )
	},

	rinputs = /^(?:input|select|textarea|button)$/i,
	rheader = /^h\d$/i,

	rnative = /^[^{]+\{\s*\[native \w/,

	// Easily-parseable/retrievable ID or TAG or CLASS selectors
	rquickExpr = /^(?:#([\w-]+)|(\w+)|\.([\w-]+))$/,

	rsibling = /[+~]/,
	rescape = /'|\\/g,

	// CSS escapes http://www.w3.org/TR/CSS21/syndata.html#escaped-characters
	runescape = new RegExp( "\\\\([\\da-f]{1,6}" + whitespace + "?|(" + whitespace + ")|.)", "ig" ),
	funescape = function( _, escaped, escapedWhitespace ) {
		var high = "0x" + escaped - 0x10000;
		// NaN means non-codepoint
		// Support: Firefox<24
		// Workaround erroneous numeric interpretation of +"0x"
		return high !== high || escapedWhitespace ?
			escaped :
			high < 0 ?
				// BMP codepoint
				String.fromCharCode( high + 0x10000 ) :
				// Supplemental Plane codepoint (surrogate pair)
				String.fromCharCode( high >> 10 | 0xD800, high & 0x3FF | 0xDC00 );
	},

	// Used for iframes
	// See setDocument()
	// Removing the function wrapper causes a "Permission Denied"
	// error in IE
	unloadHandler = function() {
		setDocument();
	};

// Optimize for push.apply( _, NodeList )
try {
	push.apply(
		(arr = slice.call( preferredDoc.childNodes )),
		preferredDoc.childNodes
	);
	// Support: Android<4.0
	// Detect silently failing push.apply
	arr[ preferredDoc.childNodes.length ].nodeType;
} catch ( e ) {
	push = { apply: arr.length ?

		// Leverage slice if possible
		function( target, els ) {
			push_native.apply( target, slice.call(els) );
		} :

		// Support: IE<9
		// Otherwise append directly
		function( target, els ) {
			var j = target.length,
				i = 0;
			// Can't trust NodeList.length
			while ( (target[j++] = els[i++]) ) {}
			target.length = j - 1;
		}
	};
}

function Sizzle( selector, context, results, seed ) {
	var m, i, elem, nid, nidselect, match, groups, newSelector,
		newContext = context && context.ownerDocument,

		// nodeType defaults to 9, since context defaults to document
		nodeType = context ? context.nodeType : 9;

	results = results || [];

	// Return early from calls with invalid selector or context
	if ( typeof selector !== "string" || !selector ||
		nodeType !== 1 && nodeType !== 9 && nodeType !== 11 ) {

		return results;
	}

	// Try to shortcut find operations (as opposed to filters) in HTML documents
	if ( !seed ) {

		if ( ( context ? context.ownerDocument || context : preferredDoc ) !== document ) {
			setDocument( context );
		}
		context = context || document;

		if ( documentIsHTML ) {

			// If the selector is sufficiently simple, try using a "get*By*" DOM method
			// (excepting DocumentFragment context, where the methods don't exist)
			if ( nodeType !== 11 && (match = rquickExpr.exec( selector )) ) {

				// ID selector
				if ( (m = match[1]) ) {

					// Document context
					if ( nodeType === 9 ) {
						if ( (elem = context.getElementById( m )) ) {

							// Support: IE, Opera, Webkit
							// TODO: identify versions
							// getElementById can match elements by name instead of ID
							if ( elem.id === m ) {
								results.push( elem );
								return results;
							}
						} else {
							return results;
						}

					// Element context
					} else {

						// Support: IE, Opera, Webkit
						// TODO: identify versions
						// getElementById can match elements by name instead of ID
						if ( newContext && (elem = newContext.getElementById( m )) &&
							contains( context, elem ) &&
							elem.id === m ) {

							results.push( elem );
							return results;
						}
					}

				// Type selector
				} else if ( match[2] ) {
					push.apply( results, context.getElementsByTagName( selector ) );
					return results;

				// Class selector
				} else if ( (m = match[3]) && support.getElementsByClassName &&
					context.getElementsByClassName ) {

					push.apply( results, context.getElementsByClassName( m ) );
					return results;
				}
			}

			// Take advantage of querySelectorAll
			if ( support.qsa &&
				!compilerCache[ selector + " " ] &&
				(!rbuggyQSA || !rbuggyQSA.test( selector )) ) {

				if ( nodeType !== 1 ) {
					newContext = context;
					newSelector = selector;

				// qSA looks outside Element context, which is not what we want
				// Thanks to Andrew Dupont for this workaround technique
				// Support: IE <=8
				// Exclude object elements
				} else if ( context.nodeName.toLowerCase() !== "object" ) {

					// Capture the context ID, setting it first if necessary
					if ( (nid = context.getAttribute( "id" )) ) {
						nid = nid.replace( rescape, "\\$&" );
					} else {
						context.setAttribute( "id", (nid = expando) );
					}

					// Prefix every selector in the list
					groups = tokenize( selector );
					i = groups.length;
					nidselect = ridentifier.test( nid ) ? "#" + nid : "[id='" + nid + "']";
					while ( i-- ) {
						groups[i] = nidselect + " " + toSelector( groups[i] );
					}
					newSelector = groups.join( "," );

					// Expand context for sibling selectors
					newContext = rsibling.test( selector ) && testContext( context.parentNode ) ||
						context;
				}

				if ( newSelector ) {
					try {
						push.apply( results,
							newContext.querySelectorAll( newSelector )
						);
						return results;
					} catch ( qsaError ) {
					} finally {
						if ( nid === expando ) {
							context.removeAttribute( "id" );
						}
					}
				}
			}
		}
	}

	// All others
	return select( selector.replace( rtrim, "$1" ), context, results, seed );
}

/**
 * Create key-value caches of limited size
 * @returns {function(string, object)} Returns the Object data after storing it on itself with
 *	property name the (space-suffixed) string and (if the cache is larger than Expr.cacheLength)
 *	deleting the oldest entry
 */
function createCache() {
	var keys = [];

	function cache( key, value ) {
		// Use (key + " ") to avoid collision with native prototype properties (see Issue #157)
		if ( keys.push( key + " " ) > Expr.cacheLength ) {
			// Only keep the most recent entries
			delete cache[ keys.shift() ];
		}
		return (cache[ key + " " ] = value);
	}
	return cache;
}

/**
 * Mark a function for special use by Sizzle
 * @param {Function} fn The function to mark
 */
function markFunction( fn ) {
	fn[ expando ] = true;
	return fn;
}

/**
 * Support testing using an element
 * @param {Function} fn Passed the created div and expects a boolean result
 */
function assert( fn ) {
	var div = document.createElement("div");

	try {
		return !!fn( div );
	} catch (e) {
		return false;
	} finally {
		// Remove from its parent by default
		if ( div.parentNode ) {
			div.parentNode.removeChild( div );
		}
		// release memory in IE
		div = null;
	}
}

/**
 * Adds the same handler for all of the specified attrs
 * @param {String} attrs Pipe-separated list of attributes
 * @param {Function} handler The method that will be applied
 */
function addHandle( attrs, handler ) {
	var arr = attrs.split("|"),
		i = arr.length;

	while ( i-- ) {
		Expr.attrHandle[ arr[i] ] = handler;
	}
}

/**
 * Checks document order of two siblings
 * @param {Element} a
 * @param {Element} b
 * @returns {Number} Returns less than 0 if a precedes b, greater than 0 if a follows b
 */
function siblingCheck( a, b ) {
	var cur = b && a,
		diff = cur && a.nodeType === 1 && b.nodeType === 1 &&
			( ~b.sourceIndex || MAX_NEGATIVE ) -
			( ~a.sourceIndex || MAX_NEGATIVE );

	// Use IE sourceIndex if available on both nodes
	if ( diff ) {
		return diff;
	}

	// Check if b follows a
	if ( cur ) {
		while ( (cur = cur.nextSibling) ) {
			if ( cur === b ) {
				return -1;
			}
		}
	}

	return a ? 1 : -1;
}

/**
 * Returns a function to use in pseudos for input types
 * @param {String} type
 */
function createInputPseudo( type ) {
	return function( elem ) {
		var name = elem.nodeName.toLowerCase();
		return name === "input" && elem.type === type;
	};
}

/**
 * Returns a function to use in pseudos for buttons
 * @param {String} type
 */
function createButtonPseudo( type ) {
	return function( elem ) {
		var name = elem.nodeName.toLowerCase();
		return (name === "input" || name === "button") && elem.type === type;
	};
}

/**
 * Returns a function to use in pseudos for positionals
 * @param {Function} fn
 */
function createPositionalPseudo( fn ) {
	return markFunction(function( argument ) {
		argument = +argument;
		return markFunction(function( seed, matches ) {
			var j,
				matchIndexes = fn( [], seed.length, argument ),
				i = matchIndexes.length;

			// Match elements found at the specified indexes
			while ( i-- ) {
				if ( seed[ (j = matchIndexes[i]) ] ) {
					seed[j] = !(matches[j] = seed[j]);
				}
			}
		});
	});
}

/**
 * Checks a node for validity as a Sizzle context
 * @param {Element|Object=} context
 * @returns {Element|Object|Boolean} The input node if acceptable, otherwise a falsy value
 */
function testContext( context ) {
	return context && typeof context.getElementsByTagName !== "undefined" && context;
}

// Expose support vars for convenience
support = Sizzle.support = {};

/**
 * Detects XML nodes
 * @param {Element|Object} elem An element or a document
 * @returns {Boolean} True iff elem is a non-HTML XML node
 */
isXML = Sizzle.isXML = function( elem ) {
	// documentElement is verified for cases where it doesn't yet exist
	// (such as loading iframes in IE - #4833)
	var documentElement = elem && (elem.ownerDocument || elem).documentElement;
	return documentElement ? documentElement.nodeName !== "HTML" : false;
};

/**
 * Sets document-related variables once based on the current document
 * @param {Element|Object} [doc] An element or document object to use to set the document
 * @returns {Object} Returns the current document
 */
setDocument = Sizzle.setDocument = function( node ) {
	var hasCompare, parent,
		doc = node ? node.ownerDocument || node : preferredDoc;

	// Return early if doc is invalid or already selected
	if ( doc === document || doc.nodeType !== 9 || !doc.documentElement ) {
		return document;
	}

	// Update global variables
	document = doc;
	docElem = document.documentElement;
	documentIsHTML = !isXML( document );

	// Support: IE 9-11, Edge
	// Accessing iframe documents after unload throws "permission denied" errors (jQuery #13936)
	if ( (parent = document.defaultView) && parent.top !== parent ) {
		// Support: IE 11
		if ( parent.addEventListener ) {
			parent.addEventListener( "unload", unloadHandler, false );

		// Support: IE 9 - 10 only
		} else if ( parent.attachEvent ) {
			parent.attachEvent( "onunload", unloadHandler );
		}
	}

	/* Attributes
	---------------------------------------------------------------------- */

	// Support: IE<8
	// Verify that getAttribute really returns attributes and not properties
	// (excepting IE8 booleans)
	support.attributes = assert(function( div ) {
		div.className = "i";
		return !div.getAttribute("className");
	});

	/* getElement(s)By*
	---------------------------------------------------------------------- */

	// Check if getElementsByTagName("*") returns only elements
	support.getElementsByTagName = assert(function( div ) {
		div.appendChild( document.createComment("") );
		return !div.getElementsByTagName("*").length;
	});

	// Support: IE<9
	support.getElementsByClassName = rnative.test( document.getElementsByClassName );

	// Support: IE<10
	// Check if getElementById returns elements by name
	// The broken getElementById methods don't pick up programatically-set names,
	// so use a roundabout getElementsByName test
	support.getById = assert(function( div ) {
		docElem.appendChild( div ).id = expando;
		return !document.getElementsByName || !document.getElementsByName( expando ).length;
	});

	// ID find and filter
	if ( support.getById ) {
		Expr.find["ID"] = function( id, context ) {
			if ( typeof context.getElementById !== "undefined" && documentIsHTML ) {
				var m = context.getElementById( id );
				return m ? [ m ] : [];
			}
		};
		Expr.filter["ID"] = function( id ) {
			var attrId = id.replace( runescape, funescape );
			return function( elem ) {
				return elem.getAttribute("id") === attrId;
			};
		};
	} else {
		// Support: IE6/7
		// getElementById is not reliable as a find shortcut
		delete Expr.find["ID"];

		Expr.filter["ID"] =  function( id ) {
			var attrId = id.replace( runescape, funescape );
			return function( elem ) {
				var node = typeof elem.getAttributeNode !== "undefined" &&
					elem.getAttributeNode("id");
				return node && node.value === attrId;
			};
		};
	}

	// Tag
	Expr.find["TAG"] = support.getElementsByTagName ?
		function( tag, context ) {
			if ( typeof context.getElementsByTagName !== "undefined" ) {
				return context.getElementsByTagName( tag );

			// DocumentFragment nodes don't have gEBTN
			} else if ( support.qsa ) {
				return context.querySelectorAll( tag );
			}
		} :

		function( tag, context ) {
			var elem,
				tmp = [],
				i = 0,
				// By happy coincidence, a (broken) gEBTN appears on DocumentFragment nodes too
				results = context.getElementsByTagName( tag );

			// Filter out possible comments
			if ( tag === "*" ) {
				while ( (elem = results[i++]) ) {
					if ( elem.nodeType === 1 ) {
						tmp.push( elem );
					}
				}

				return tmp;
			}
			return results;
		};

	// Class
	Expr.find["CLASS"] = support.getElementsByClassName && function( className, context ) {
		if ( typeof context.getElementsByClassName !== "undefined" && documentIsHTML ) {
			return context.getElementsByClassName( className );
		}
	};

	/* QSA/matchesSelector
	---------------------------------------------------------------------- */

	// QSA and matchesSelector support

	// matchesSelector(:active) reports false when true (IE9/Opera 11.5)
	rbuggyMatches = [];

	// qSa(:focus) reports false when true (Chrome 21)
	// We allow this because of a bug in IE8/9 that throws an error
	// whenever `document.activeElement` is accessed on an iframe
	// So, we allow :focus to pass through QSA all the time to avoid the IE error
	// See http://bugs.jquery.com/ticket/13378
	rbuggyQSA = [];

	if ( (support.qsa = rnative.test( document.querySelectorAll )) ) {
		// Build QSA regex
		// Regex strategy adopted from Diego Perini
		assert(function( div ) {
			// Select is set to empty string on purpose
			// This is to test IE's treatment of not explicitly
			// setting a boolean content attribute,
			// since its presence should be enough
			// http://bugs.jquery.com/ticket/12359
			docElem.appendChild( div ).innerHTML = "<a id='" + expando + "'></a>" +
				"<select id='" + expando + "-\r\\' msallowcapture=''>" +
				"<option selected=''></option></select>";

			// Support: IE8, Opera 11-12.16
			// Nothing should be selected when empty strings follow ^= or $= or *=
			// The test attribute must be unknown in Opera but "safe" for WinRT
			// http://msdn.microsoft.com/en-us/library/ie/hh465388.aspx#attribute_section
			if ( div.querySelectorAll("[msallowcapture^='']").length ) {
				rbuggyQSA.push( "[*^$]=" + whitespace + "*(?:''|\"\")" );
			}

			// Support: IE8
			// Boolean attributes and "value" are not treated correctly
			if ( !div.querySelectorAll("[selected]").length ) {
				rbuggyQSA.push( "\\[" + whitespace + "*(?:value|" + booleans + ")" );
			}

			// Support: Chrome<29, Android<4.4, Safari<7.0+, iOS<7.0+, PhantomJS<1.9.8+
			if ( !div.querySelectorAll( "[id~=" + expando + "-]" ).length ) {
				rbuggyQSA.push("~=");
			}

			// Webkit/Opera - :checked should return selected option elements
			// http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
			// IE8 throws error here and will not see later tests
			if ( !div.querySelectorAll(":checked").length ) {
				rbuggyQSA.push(":checked");
			}

			// Support: Safari 8+, iOS 8+
			// https://bugs.webkit.org/show_bug.cgi?id=136851
			// In-page `selector#id sibing-combinator selector` fails
			if ( !div.querySelectorAll( "a#" + expando + "+*" ).length ) {
				rbuggyQSA.push(".#.+[+~]");
			}
		});

		assert(function( div ) {
			// Support: Windows 8 Native Apps
			// The type and name attributes are restricted during .innerHTML assignment
			var input = document.createElement("input");
			input.setAttribute( "type", "hidden" );
			div.appendChild( input ).setAttribute( "name", "D" );

			// Support: IE8
			// Enforce case-sensitivity of name attribute
			if ( div.querySelectorAll("[name=d]").length ) {
				rbuggyQSA.push( "name" + whitespace + "*[*^$|!~]?=" );
			}

			// FF 3.5 - :enabled/:disabled and hidden elements (hidden elements are still enabled)
			// IE8 throws error here and will not see later tests
			if ( !div.querySelectorAll(":enabled").length ) {
				rbuggyQSA.push( ":enabled", ":disabled" );
			}

			// Opera 10-11 does not throw on post-comma invalid pseudos
			div.querySelectorAll("*,:x");
			rbuggyQSA.push(",.*:");
		});
	}

	if ( (support.matchesSelector = rnative.test( (matches = docElem.matches ||
		docElem.webkitMatchesSelector ||
		docElem.mozMatchesSelector ||
		docElem.oMatchesSelector ||
		docElem.msMatchesSelector) )) ) {

		assert(function( div ) {
			// Check to see if it's possible to do matchesSelector
			// on a disconnected node (IE 9)
			support.disconnectedMatch = matches.call( div, "div" );

			// This should fail with an exception
			// Gecko does not error, returns false instead
			matches.call( div, "[s!='']:x" );
			rbuggyMatches.push( "!=", pseudos );
		});
	}

	rbuggyQSA = rbuggyQSA.length && new RegExp( rbuggyQSA.join("|") );
	rbuggyMatches = rbuggyMatches.length && new RegExp( rbuggyMatches.join("|") );

	/* Contains
	---------------------------------------------------------------------- */
	hasCompare = rnative.test( docElem.compareDocumentPosition );

	// Element contains another
	// Purposefully self-exclusive
	// As in, an element does not contain itself
	contains = hasCompare || rnative.test( docElem.contains ) ?
		function( a, b ) {
			var adown = a.nodeType === 9 ? a.documentElement : a,
				bup = b && b.parentNode;
			return a === bup || !!( bup && bup.nodeType === 1 && (
				adown.contains ?
					adown.contains( bup ) :
					a.compareDocumentPosition && a.compareDocumentPosition( bup ) & 16
			));
		} :
		function( a, b ) {
			if ( b ) {
				while ( (b = b.parentNode) ) {
					if ( b === a ) {
						return true;
					}
				}
			}
			return false;
		};

	/* Sorting
	---------------------------------------------------------------------- */

	// Document order sorting
	sortOrder = hasCompare ?
	function( a, b ) {

		// Flag for duplicate removal
		if ( a === b ) {
			hasDuplicate = true;
			return 0;
		}

		// Sort on method existence if only one input has compareDocumentPosition
		var compare = !a.compareDocumentPosition - !b.compareDocumentPosition;
		if ( compare ) {
			return compare;
		}

		// Calculate position if both inputs belong to the same document
		compare = ( a.ownerDocument || a ) === ( b.ownerDocument || b ) ?
			a.compareDocumentPosition( b ) :

			// Otherwise we know they are disconnected
			1;

		// Disconnected nodes
		if ( compare & 1 ||
			(!support.sortDetached && b.compareDocumentPosition( a ) === compare) ) {

			// Choose the first element that is related to our preferred document
			if ( a === document || a.ownerDocument === preferredDoc && contains(preferredDoc, a) ) {
				return -1;
			}
			if ( b === document || b.ownerDocument === preferredDoc && contains(preferredDoc, b) ) {
				return 1;
			}

			// Maintain original order
			return sortInput ?
				( indexOf( sortInput, a ) - indexOf( sortInput, b ) ) :
				0;
		}

		return compare & 4 ? -1 : 1;
	} :
	function( a, b ) {
		// Exit early if the nodes are identical
		if ( a === b ) {
			hasDuplicate = true;
			return 0;
		}

		var cur,
			i = 0,
			aup = a.parentNode,
			bup = b.parentNode,
			ap = [ a ],
			bp = [ b ];

		// Parentless nodes are either documents or disconnected
		if ( !aup || !bup ) {
			return a === document ? -1 :
				b === document ? 1 :
				aup ? -1 :
				bup ? 1 :
				sortInput ?
				( indexOf( sortInput, a ) - indexOf( sortInput, b ) ) :
				0;

		// If the nodes are siblings, we can do a quick check
		} else if ( aup === bup ) {
			return siblingCheck( a, b );
		}

		// Otherwise we need full lists of their ancestors for comparison
		cur = a;
		while ( (cur = cur.parentNode) ) {
			ap.unshift( cur );
		}
		cur = b;
		while ( (cur = cur.parentNode) ) {
			bp.unshift( cur );
		}

		// Walk down the tree looking for a discrepancy
		while ( ap[i] === bp[i] ) {
			i++;
		}

		return i ?
			// Do a sibling check if the nodes have a common ancestor
			siblingCheck( ap[i], bp[i] ) :

			// Otherwise nodes in our document sort first
			ap[i] === preferredDoc ? -1 :
			bp[i] === preferredDoc ? 1 :
			0;
	};

	return document;
};

Sizzle.matches = function( expr, elements ) {
	return Sizzle( expr, null, null, elements );
};

Sizzle.matchesSelector = function( elem, expr ) {
	// Set document vars if needed
	if ( ( elem.ownerDocument || elem ) !== document ) {
		setDocument( elem );
	}

	// Make sure that attribute selectors are quoted
	expr = expr.replace( rattributeQuotes, "='$1']" );

	if ( support.matchesSelector && documentIsHTML &&
		!compilerCache[ expr + " " ] &&
		( !rbuggyMatches || !rbuggyMatches.test( expr ) ) &&
		( !rbuggyQSA     || !rbuggyQSA.test( expr ) ) ) {

		try {
			var ret = matches.call( elem, expr );

			// IE 9's matchesSelector returns false on disconnected nodes
			if ( ret || support.disconnectedMatch ||
					// As well, disconnected nodes are said to be in a document
					// fragment in IE 9
					elem.document && elem.document.nodeType !== 11 ) {
				return ret;
			}
		} catch (e) {}
	}

	return Sizzle( expr, document, null, [ elem ] ).length > 0;
};

Sizzle.contains = function( context, elem ) {
	// Set document vars if needed
	if ( ( context.ownerDocument || context ) !== document ) {
		setDocument( context );
	}
	return contains( context, elem );
};

Sizzle.attr = function( elem, name ) {
	// Set document vars if needed
	if ( ( elem.ownerDocument || elem ) !== document ) {
		setDocument( elem );
	}

	var fn = Expr.attrHandle[ name.toLowerCase() ],
		// Don't get fooled by Object.prototype properties (jQuery #13807)
		val = fn && hasOwn.call( Expr.attrHandle, name.toLowerCase() ) ?
			fn( elem, name, !documentIsHTML ) :
			undefined;

	return val !== undefined ?
		val :
		support.attributes || !documentIsHTML ?
			elem.getAttribute( name ) :
			(val = elem.getAttributeNode(name)) && val.specified ?
				val.value :
				null;
};

Sizzle.error = function( msg ) {
	throw new Error( "Syntax error, unrecognized expression: " + msg );
};

/**
 * Document sorting and removing duplicates
 * @param {ArrayLike} results
 */
Sizzle.uniqueSort = function( results ) {
	var elem,
		duplicates = [],
		j = 0,
		i = 0;

	// Unless we *know* we can detect duplicates, assume their presence
	hasDuplicate = !support.detectDuplicates;
	sortInput = !support.sortStable && results.slice( 0 );
	results.sort( sortOrder );

	if ( hasDuplicate ) {
		while ( (elem = results[i++]) ) {
			if ( elem === results[ i ] ) {
				j = duplicates.push( i );
			}
		}
		while ( j-- ) {
			results.splice( duplicates[ j ], 1 );
		}
	}

	// Clear input after sorting to release objects
	// See https://github.com/jquery/sizzle/pull/225
	sortInput = null;

	return results;
};

/**
 * Utility function for retrieving the text value of an array of DOM nodes
 * @param {Array|Element} elem
 */
getText = Sizzle.getText = function( elem ) {
	var node,
		ret = "",
		i = 0,
		nodeType = elem.nodeType;

	if ( !nodeType ) {
		// If no nodeType, this is expected to be an array
		while ( (node = elem[i++]) ) {
			// Do not traverse comment nodes
			ret += getText( node );
		}
	} else if ( nodeType === 1 || nodeType === 9 || nodeType === 11 ) {
		// Use textContent for elements
		// innerText usage removed for consistency of new lines (jQuery #11153)
		if ( typeof elem.textContent === "string" ) {
			return elem.textContent;
		} else {
			// Traverse its children
			for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {
				ret += getText( elem );
			}
		}
	} else if ( nodeType === 3 || nodeType === 4 ) {
		return elem.nodeValue;
	}
	// Do not include comment or processing instruction nodes

	return ret;
};

Expr = Sizzle.selectors = {

	// Can be adjusted by the user
	cacheLength: 50,

	createPseudo: markFunction,

	match: matchExpr,

	attrHandle: {},

	find: {},

	relative: {
		">": { dir: "parentNode", first: true },
		" ": { dir: "parentNode" },
		"+": { dir: "previousSibling", first: true },
		"~": { dir: "previousSibling" }
	},

	preFilter: {
		"ATTR": function( match ) {
			match[1] = match[1].replace( runescape, funescape );

			// Move the given value to match[3] whether quoted or unquoted
			match[3] = ( match[3] || match[4] || match[5] || "" ).replace( runescape, funescape );

			if ( match[2] === "~=" ) {
				match[3] = " " + match[3] + " ";
			}

			return match.slice( 0, 4 );
		},

		"CHILD": function( match ) {
			/* matches from matchExpr["CHILD"]
				1 type (only|nth|...)
				2 what (child|of-type)
				3 argument (even|odd|\d*|\d*n([+-]\d+)?|...)
				4 xn-component of xn+y argument ([+-]?\d*n|)
				5 sign of xn-component
				6 x of xn-component
				7 sign of y-component
				8 y of y-component
			*/
			match[1] = match[1].toLowerCase();

			if ( match[1].slice( 0, 3 ) === "nth" ) {
				// nth-* requires argument
				if ( !match[3] ) {
					Sizzle.error( match[0] );
				}

				// numeric x and y parameters for Expr.filter.CHILD
				// remember that false/true cast respectively to 0/1
				match[4] = +( match[4] ? match[5] + (match[6] || 1) : 2 * ( match[3] === "even" || match[3] === "odd" ) );
				match[5] = +( ( match[7] + match[8] ) || match[3] === "odd" );

			// other types prohibit arguments
			} else if ( match[3] ) {
				Sizzle.error( match[0] );
			}

			return match;
		},

		"PSEUDO": function( match ) {
			var excess,
				unquoted = !match[6] && match[2];

			if ( matchExpr["CHILD"].test( match[0] ) ) {
				return null;
			}

			// Accept quoted arguments as-is
			if ( match[3] ) {
				match[2] = match[4] || match[5] || "";

			// Strip excess characters from unquoted arguments
			} else if ( unquoted && rpseudo.test( unquoted ) &&
				// Get excess from tokenize (recursively)
				(excess = tokenize( unquoted, true )) &&
				// advance to the next closing parenthesis
				(excess = unquoted.indexOf( ")", unquoted.length - excess ) - unquoted.length) ) {

				// excess is a negative index
				match[0] = match[0].slice( 0, excess );
				match[2] = unquoted.slice( 0, excess );
			}

			// Return only captures needed by the pseudo filter method (type and argument)
			return match.slice( 0, 3 );
		}
	},

	filter: {

		"TAG": function( nodeNameSelector ) {
			var nodeName = nodeNameSelector.replace( runescape, funescape ).toLowerCase();
			return nodeNameSelector === "*" ?
				function() { return true; } :
				function( elem ) {
					return elem.nodeName && elem.nodeName.toLowerCase() === nodeName;
				};
		},

		"CLASS": function( className ) {
			var pattern = classCache[ className + " " ];

			return pattern ||
				(pattern = new RegExp( "(^|" + whitespace + ")" + className + "(" + whitespace + "|$)" )) &&
				classCache( className, function( elem ) {
					return pattern.test( typeof elem.className === "string" && elem.className || typeof elem.getAttribute !== "undefined" && elem.getAttribute("class") || "" );
				});
		},

		"ATTR": function( name, operator, check ) {
			return function( elem ) {
				var result = Sizzle.attr( elem, name );

				if ( result == null ) {
					return operator === "!=";
				}
				if ( !operator ) {
					return true;
				}

				result += "";

				return operator === "=" ? result === check :
					operator === "!=" ? result !== check :
					operator === "^=" ? check && result.indexOf( check ) === 0 :
					operator === "*=" ? check && result.indexOf( check ) > -1 :
					operator === "$=" ? check && result.slice( -check.length ) === check :
					operator === "~=" ? ( " " + result.replace( rwhitespace, " " ) + " " ).indexOf( check ) > -1 :
					operator === "|=" ? result === check || result.slice( 0, check.length + 1 ) === check + "-" :
					false;
			};
		},

		"CHILD": function( type, what, argument, first, last ) {
			var simple = type.slice( 0, 3 ) !== "nth",
				forward = type.slice( -4 ) !== "last",
				ofType = what === "of-type";

			return first === 1 && last === 0 ?

				// Shortcut for :nth-*(n)
				function( elem ) {
					return !!elem.parentNode;
				} :

				function( elem, context, xml ) {
					var cache, uniqueCache, outerCache, node, nodeIndex, start,
						dir = simple !== forward ? "nextSibling" : "previousSibling",
						parent = elem.parentNode,
						name = ofType && elem.nodeName.toLowerCase(),
						useCache = !xml && !ofType,
						diff = false;

					if ( parent ) {

						// :(first|last|only)-(child|of-type)
						if ( simple ) {
							while ( dir ) {
								node = elem;
								while ( (node = node[ dir ]) ) {
									if ( ofType ?
										node.nodeName.toLowerCase() === name :
										node.nodeType === 1 ) {

										return false;
									}
								}
								// Reverse direction for :only-* (if we haven't yet done so)
								start = dir = type === "only" && !start && "nextSibling";
							}
							return true;
						}

						start = [ forward ? parent.firstChild : parent.lastChild ];

						// non-xml :nth-child(...) stores cache data on `parent`
						if ( forward && useCache ) {

							// Seek `elem` from a previously-cached index

							// ...in a gzip-friendly way
							node = parent;
							outerCache = node[ expando ] || (node[ expando ] = {});

							// Support: IE <9 only
							// Defend against cloned attroperties (jQuery gh-1709)
							uniqueCache = outerCache[ node.uniqueID ] ||
								(outerCache[ node.uniqueID ] = {});

							cache = uniqueCache[ type ] || [];
							nodeIndex = cache[ 0 ] === dirruns && cache[ 1 ];
							diff = nodeIndex && cache[ 2 ];
							node = nodeIndex && parent.childNodes[ nodeIndex ];

							while ( (node = ++nodeIndex && node && node[ dir ] ||

								// Fallback to seeking `elem` from the start
								(diff = nodeIndex = 0) || start.pop()) ) {

								// When found, cache indexes on `parent` and break
								if ( node.nodeType === 1 && ++diff && node === elem ) {
									uniqueCache[ type ] = [ dirruns, nodeIndex, diff ];
									break;
								}
							}

						} else {
							// Use previously-cached element index if available
							if ( useCache ) {
								// ...in a gzip-friendly way
								node = elem;
								outerCache = node[ expando ] || (node[ expando ] = {});

								// Support: IE <9 only
								// Defend against cloned attroperties (jQuery gh-1709)
								uniqueCache = outerCache[ node.uniqueID ] ||
									(outerCache[ node.uniqueID ] = {});

								cache = uniqueCache[ type ] || [];
								nodeIndex = cache[ 0 ] === dirruns && cache[ 1 ];
								diff = nodeIndex;
							}

							// xml :nth-child(...)
							// or :nth-last-child(...) or :nth(-last)?-of-type(...)
							if ( diff === false ) {
								// Use the same loop as above to seek `elem` from the start
								while ( (node = ++nodeIndex && node && node[ dir ] ||
									(diff = nodeIndex = 0) || start.pop()) ) {

									if ( ( ofType ?
										node.nodeName.toLowerCase() === name :
										node.nodeType === 1 ) &&
										++diff ) {

										// Cache the index of each encountered element
										if ( useCache ) {
											outerCache = node[ expando ] || (node[ expando ] = {});

											// Support: IE <9 only
											// Defend against cloned attroperties (jQuery gh-1709)
											uniqueCache = outerCache[ node.uniqueID ] ||
												(outerCache[ node.uniqueID ] = {});

											uniqueCache[ type ] = [ dirruns, diff ];
										}

										if ( node === elem ) {
											break;
										}
									}
								}
							}
						}

						// Incorporate the offset, then check against cycle size
						diff -= last;
						return diff === first || ( diff % first === 0 && diff / first >= 0 );
					}
				};
		},

		"PSEUDO": function( pseudo, argument ) {
			// pseudo-class names are case-insensitive
			// http://www.w3.org/TR/selectors/#pseudo-classes
			// Prioritize by case sensitivity in case custom pseudos are added with uppercase letters
			// Remember that setFilters inherits from pseudos
			var args,
				fn = Expr.pseudos[ pseudo ] || Expr.setFilters[ pseudo.toLowerCase() ] ||
					Sizzle.error( "unsupported pseudo: " + pseudo );

			// The user may use createPseudo to indicate that
			// arguments are needed to create the filter function
			// just as Sizzle does
			if ( fn[ expando ] ) {
				return fn( argument );
			}

			// But maintain support for old signatures
			if ( fn.length > 1 ) {
				args = [ pseudo, pseudo, "", argument ];
				return Expr.setFilters.hasOwnProperty( pseudo.toLowerCase() ) ?
					markFunction(function( seed, matches ) {
						var idx,
							matched = fn( seed, argument ),
							i = matched.length;
						while ( i-- ) {
							idx = indexOf( seed, matched[i] );
							seed[ idx ] = !( matches[ idx ] = matched[i] );
						}
					}) :
					function( elem ) {
						return fn( elem, 0, args );
					};
			}

			return fn;
		}
	},

	pseudos: {
		// Potentially complex pseudos
		"not": markFunction(function( selector ) {
			// Trim the selector passed to compile
			// to avoid treating leading and trailing
			// spaces as combinators
			var input = [],
				results = [],
				matcher = compile( selector.replace( rtrim, "$1" ) );

			return matcher[ expando ] ?
				markFunction(function( seed, matches, context, xml ) {
					var elem,
						unmatched = matcher( seed, null, xml, [] ),
						i = seed.length;

					// Match elements unmatched by `matcher`
					while ( i-- ) {
						if ( (elem = unmatched[i]) ) {
							seed[i] = !(matches[i] = elem);
						}
					}
				}) :
				function( elem, context, xml ) {
					input[0] = elem;
					matcher( input, null, xml, results );
					// Don't keep the element (issue #299)
					input[0] = null;
					return !results.pop();
				};
		}),

		"has": markFunction(function( selector ) {
			return function( elem ) {
				return Sizzle( selector, elem ).length > 0;
			};
		}),

		"contains": markFunction(function( text ) {
			text = text.replace( runescape, funescape );
			return function( elem ) {
				return ( elem.textContent || elem.innerText || getText( elem ) ).indexOf( text ) > -1;
			};
		}),

		// "Whether an element is represented by a :lang() selector
		// is based solely on the element's language value
		// being equal to the identifier C,
		// or beginning with the identifier C immediately followed by "-".
		// The matching of C against the element's language value is performed case-insensitively.
		// The identifier C does not have to be a valid language name."
		// http://www.w3.org/TR/selectors/#lang-pseudo
		"lang": markFunction( function( lang ) {
			// lang value must be a valid identifier
			if ( !ridentifier.test(lang || "") ) {
				Sizzle.error( "unsupported lang: " + lang );
			}
			lang = lang.replace( runescape, funescape ).toLowerCase();
			return function( elem ) {
				var elemLang;
				do {
					if ( (elemLang = documentIsHTML ?
						elem.lang :
						elem.getAttribute("xml:lang") || elem.getAttribute("lang")) ) {

						elemLang = elemLang.toLowerCase();
						return elemLang === lang || elemLang.indexOf( lang + "-" ) === 0;
					}
				} while ( (elem = elem.parentNode) && elem.nodeType === 1 );
				return false;
			};
		}),

		// Miscellaneous
		"target": function( elem ) {
			var hash = window.location && window.location.hash;
			return hash && hash.slice( 1 ) === elem.id;
		},

		"root": function( elem ) {
			return elem === docElem;
		},

		"focus": function( elem ) {
			return elem === document.activeElement && (!document.hasFocus || document.hasFocus()) && !!(elem.type || elem.href || ~elem.tabIndex);
		},

		// Boolean properties
		"enabled": function( elem ) {
			return elem.disabled === false;
		},

		"disabled": function( elem ) {
			return elem.disabled === true;
		},

		"checked": function( elem ) {
			// In CSS3, :checked should return both checked and selected elements
			// http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
			var nodeName = elem.nodeName.toLowerCase();
			return (nodeName === "input" && !!elem.checked) || (nodeName === "option" && !!elem.selected);
		},

		"selected": function( elem ) {
			// Accessing this property makes selected-by-default
			// options in Safari work properly
			if ( elem.parentNode ) {
				elem.parentNode.selectedIndex;
			}

			return elem.selected === true;
		},

		// Contents
		"empty": function( elem ) {
			// http://www.w3.org/TR/selectors/#empty-pseudo
			// :empty is negated by element (1) or content nodes (text: 3; cdata: 4; entity ref: 5),
			//   but not by others (comment: 8; processing instruction: 7; etc.)
			// nodeType < 6 works because attributes (2) do not appear as children
			for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {
				if ( elem.nodeType < 6 ) {
					return false;
				}
			}
			return true;
		},

		"parent": function( elem ) {
			return !Expr.pseudos["empty"]( elem );
		},

		// Element/input types
		"header": function( elem ) {
			return rheader.test( elem.nodeName );
		},

		"input": function( elem ) {
			return rinputs.test( elem.nodeName );
		},

		"button": function( elem ) {
			var name = elem.nodeName.toLowerCase();
			return name === "input" && elem.type === "button" || name === "button";
		},

		"text": function( elem ) {
			var attr;
			return elem.nodeName.toLowerCase() === "input" &&
				elem.type === "text" &&

				// Support: IE<8
				// New HTML5 attribute values (e.g., "search") appear with elem.type === "text"
				( (attr = elem.getAttribute("type")) == null || attr.toLowerCase() === "text" );
		},

		// Position-in-collection
		"first": createPositionalPseudo(function() {
			return [ 0 ];
		}),

		"last": createPositionalPseudo(function( matchIndexes, length ) {
			return [ length - 1 ];
		}),

		"eq": createPositionalPseudo(function( matchIndexes, length, argument ) {
			return [ argument < 0 ? argument + length : argument ];
		}),

		"even": createPositionalPseudo(function( matchIndexes, length ) {
			var i = 0;
			for ( ; i < length; i += 2 ) {
				matchIndexes.push( i );
			}
			return matchIndexes;
		}),

		"odd": createPositionalPseudo(function( matchIndexes, length ) {
			var i = 1;
			for ( ; i < length; i += 2 ) {
				matchIndexes.push( i );
			}
			return matchIndexes;
		}),

		"lt": createPositionalPseudo(function( matchIndexes, length, argument ) {
			var i = argument < 0 ? argument + length : argument;
			for ( ; --i >= 0; ) {
				matchIndexes.push( i );
			}
			return matchIndexes;
		}),

		"gt": createPositionalPseudo(function( matchIndexes, length, argument ) {
			var i = argument < 0 ? argument + length : argument;
			for ( ; ++i < length; ) {
				matchIndexes.push( i );
			}
			return matchIndexes;
		})
	}
};

Expr.pseudos["nth"] = Expr.pseudos["eq"];

// Add button/input type pseudos
for ( i in { radio: true, checkbox: true, file: true, password: true, image: true } ) {
	Expr.pseudos[ i ] = createInputPseudo( i );
}
for ( i in { submit: true, reset: true } ) {
	Expr.pseudos[ i ] = createButtonPseudo( i );
}

// Easy API for creating new setFilters
function setFilters() {}
setFilters.prototype = Expr.filters = Expr.pseudos;
Expr.setFilters = new setFilters();

tokenize = Sizzle.tokenize = function( selector, parseOnly ) {
	var matched, match, tokens, type,
		soFar, groups, preFilters,
		cached = tokenCache[ selector + " " ];

	if ( cached ) {
		return parseOnly ? 0 : cached.slice( 0 );
	}

	soFar = selector;
	groups = [];
	preFilters = Expr.preFilter;

	while ( soFar ) {

		// Comma and first run
		if ( !matched || (match = rcomma.exec( soFar )) ) {
			if ( match ) {
				// Don't consume trailing commas as valid
				soFar = soFar.slice( match[0].length ) || soFar;
			}
			groups.push( (tokens = []) );
		}

		matched = false;

		// Combinators
		if ( (match = rcombinators.exec( soFar )) ) {
			matched = match.shift();
			tokens.push({
				value: matched,
				// Cast descendant combinators to space
				type: match[0].replace( rtrim, " " )
			});
			soFar = soFar.slice( matched.length );
		}

		// Filters
		for ( type in Expr.filter ) {
			if ( (match = matchExpr[ type ].exec( soFar )) && (!preFilters[ type ] ||
				(match = preFilters[ type ]( match ))) ) {
				matched = match.shift();
				tokens.push({
					value: matched,
					type: type,
					matches: match
				});
				soFar = soFar.slice( matched.length );
			}
		}

		if ( !matched ) {
			break;
		}
	}

	// Return the length of the invalid excess
	// if we're just parsing
	// Otherwise, throw an error or return tokens
	return parseOnly ?
		soFar.length :
		soFar ?
			Sizzle.error( selector ) :
			// Cache the tokens
			tokenCache( selector, groups ).slice( 0 );
};

function toSelector( tokens ) {
	var i = 0,
		len = tokens.length,
		selector = "";
	for ( ; i < len; i++ ) {
		selector += tokens[i].value;
	}
	return selector;
}

function addCombinator( matcher, combinator, base ) {
	var dir = combinator.dir,
		checkNonElements = base && dir === "parentNode",
		doneName = done++;

	return combinator.first ?
		// Check against closest ancestor/preceding element
		function( elem, context, xml ) {
			while ( (elem = elem[ dir ]) ) {
				if ( elem.nodeType === 1 || checkNonElements ) {
					return matcher( elem, context, xml );
				}
			}
		} :

		// Check against all ancestor/preceding elements
		function( elem, context, xml ) {
			var oldCache, uniqueCache, outerCache,
				newCache = [ dirruns, doneName ];

			// We can't set arbitrary data on XML nodes, so they don't benefit from combinator caching
			if ( xml ) {
				while ( (elem = elem[ dir ]) ) {
					if ( elem.nodeType === 1 || checkNonElements ) {
						if ( matcher( elem, context, xml ) ) {
							return true;
						}
					}
				}
			} else {
				while ( (elem = elem[ dir ]) ) {
					if ( elem.nodeType === 1 || checkNonElements ) {
						outerCache = elem[ expando ] || (elem[ expando ] = {});

						// Support: IE <9 only
						// Defend against cloned attroperties (jQuery gh-1709)
						uniqueCache = outerCache[ elem.uniqueID ] || (outerCache[ elem.uniqueID ] = {});

						if ( (oldCache = uniqueCache[ dir ]) &&
							oldCache[ 0 ] === dirruns && oldCache[ 1 ] === doneName ) {

							// Assign to newCache so results back-propagate to previous elements
							return (newCache[ 2 ] = oldCache[ 2 ]);
						} else {
							// Reuse newcache so results back-propagate to previous elements
							uniqueCache[ dir ] = newCache;

							// A match means we're done; a fail means we have to keep checking
							if ( (newCache[ 2 ] = matcher( elem, context, xml )) ) {
								return true;
							}
						}
					}
				}
			}
		};
}

function elementMatcher( matchers ) {
	return matchers.length > 1 ?
		function( elem, context, xml ) {
			var i = matchers.length;
			while ( i-- ) {
				if ( !matchers[i]( elem, context, xml ) ) {
					return false;
				}
			}
			return true;
		} :
		matchers[0];
}

function multipleContexts( selector, contexts, results ) {
	var i = 0,
		len = contexts.length;
	for ( ; i < len; i++ ) {
		Sizzle( selector, contexts[i], results );
	}
	return results;
}

function condense( unmatched, map, filter, context, xml ) {
	var elem,
		newUnmatched = [],
		i = 0,
		len = unmatched.length,
		mapped = map != null;

	for ( ; i < len; i++ ) {
		if ( (elem = unmatched[i]) ) {
			if ( !filter || filter( elem, context, xml ) ) {
				newUnmatched.push( elem );
				if ( mapped ) {
					map.push( i );
				}
			}
		}
	}

	return newUnmatched;
}

function setMatcher( preFilter, selector, matcher, postFilter, postFinder, postSelector ) {
	if ( postFilter && !postFilter[ expando ] ) {
		postFilter = setMatcher( postFilter );
	}
	if ( postFinder && !postFinder[ expando ] ) {
		postFinder = setMatcher( postFinder, postSelector );
	}
	return markFunction(function( seed, results, context, xml ) {
		var temp, i, elem,
			preMap = [],
			postMap = [],
			preexisting = results.length,

			// Get initial elements from seed or context
			elems = seed || multipleContexts( selector || "*", context.nodeType ? [ context ] : context, [] ),

			// Prefilter to get matcher input, preserving a map for seed-results synchronization
			matcherIn = preFilter && ( seed || !selector ) ?
				condense( elems, preMap, preFilter, context, xml ) :
				elems,

			matcherOut = matcher ?
				// If we have a postFinder, or filtered seed, or non-seed postFilter or preexisting results,
				postFinder || ( seed ? preFilter : preexisting || postFilter ) ?

					// ...intermediate processing is necessary
					[] :

					// ...otherwise use results directly
					results :
				matcherIn;

		// Find primary matches
		if ( matcher ) {
			matcher( matcherIn, matcherOut, context, xml );
		}

		// Apply postFilter
		if ( postFilter ) {
			temp = condense( matcherOut, postMap );
			postFilter( temp, [], context, xml );

			// Un-match failing elements by moving them back to matcherIn
			i = temp.length;
			while ( i-- ) {
				if ( (elem = temp[i]) ) {
					matcherOut[ postMap[i] ] = !(matcherIn[ postMap[i] ] = elem);
				}
			}
		}

		if ( seed ) {
			if ( postFinder || preFilter ) {
				if ( postFinder ) {
					// Get the final matcherOut by condensing this intermediate into postFinder contexts
					temp = [];
					i = matcherOut.length;
					while ( i-- ) {
						if ( (elem = matcherOut[i]) ) {
							// Restore matcherIn since elem is not yet a final match
							temp.push( (matcherIn[i] = elem) );
						}
					}
					postFinder( null, (matcherOut = []), temp, xml );
				}

				// Move matched elements from seed to results to keep them synchronized
				i = matcherOut.length;
				while ( i-- ) {
					if ( (elem = matcherOut[i]) &&
						(temp = postFinder ? indexOf( seed, elem ) : preMap[i]) > -1 ) {

						seed[temp] = !(results[temp] = elem);
					}
				}
			}

		// Add elements to results, through postFinder if defined
		} else {
			matcherOut = condense(
				matcherOut === results ?
					matcherOut.splice( preexisting, matcherOut.length ) :
					matcherOut
			);
			if ( postFinder ) {
				postFinder( null, results, matcherOut, xml );
			} else {
				push.apply( results, matcherOut );
			}
		}
	});
}

function matcherFromTokens( tokens ) {
	var checkContext, matcher, j,
		len = tokens.length,
		leadingRelative = Expr.relative[ tokens[0].type ],
		implicitRelative = leadingRelative || Expr.relative[" "],
		i = leadingRelative ? 1 : 0,

		// The foundational matcher ensures that elements are reachable from top-level context(s)
		matchContext = addCombinator( function( elem ) {
			return elem === checkContext;
		}, implicitRelative, true ),
		matchAnyContext = addCombinator( function( elem ) {
			return indexOf( checkContext, elem ) > -1;
		}, implicitRelative, true ),
		matchers = [ function( elem, context, xml ) {
			var ret = ( !leadingRelative && ( xml || context !== outermostContext ) ) || (
				(checkContext = context).nodeType ?
					matchContext( elem, context, xml ) :
					matchAnyContext( elem, context, xml ) );
			// Avoid hanging onto element (issue #299)
			checkContext = null;
			return ret;
		} ];

	for ( ; i < len; i++ ) {
		if ( (matcher = Expr.relative[ tokens[i].type ]) ) {
			matchers = [ addCombinator(elementMatcher( matchers ), matcher) ];
		} else {
			matcher = Expr.filter[ tokens[i].type ].apply( null, tokens[i].matches );

			// Return special upon seeing a positional matcher
			if ( matcher[ expando ] ) {
				// Find the next relative operator (if any) for proper handling
				j = ++i;
				for ( ; j < len; j++ ) {
					if ( Expr.relative[ tokens[j].type ] ) {
						break;
					}
				}
				return setMatcher(
					i > 1 && elementMatcher( matchers ),
					i > 1 && toSelector(
						// If the preceding token was a descendant combinator, insert an implicit any-element `*`
						tokens.slice( 0, i - 1 ).concat({ value: tokens[ i - 2 ].type === " " ? "*" : "" })
					).replace( rtrim, "$1" ),
					matcher,
					i < j && matcherFromTokens( tokens.slice( i, j ) ),
					j < len && matcherFromTokens( (tokens = tokens.slice( j )) ),
					j < len && toSelector( tokens )
				);
			}
			matchers.push( matcher );
		}
	}

	return elementMatcher( matchers );
}

function matcherFromGroupMatchers( elementMatchers, setMatchers ) {
	var bySet = setMatchers.length > 0,
		byElement = elementMatchers.length > 0,
		superMatcher = function( seed, context, xml, results, outermost ) {
			var elem, j, matcher,
				matchedCount = 0,
				i = "0",
				unmatched = seed && [],
				setMatched = [],
				contextBackup = outermostContext,
				// We must always have either seed elements or outermost context
				elems = seed || byElement && Expr.find["TAG"]( "*", outermost ),
				// Use integer dirruns iff this is the outermost matcher
				dirrunsUnique = (dirruns += contextBackup == null ? 1 : Math.random() || 0.1),
				len = elems.length;

			if ( outermost ) {
				outermostContext = context === document || context || outermost;
			}

			// Add elements passing elementMatchers directly to results
			// Support: IE<9, Safari
			// Tolerate NodeList properties (IE: "length"; Safari: <number>) matching elements by id
			for ( ; i !== len && (elem = elems[i]) != null; i++ ) {
				if ( byElement && elem ) {
					j = 0;
					if ( !context && elem.ownerDocument !== document ) {
						setDocument( elem );
						xml = !documentIsHTML;
					}
					while ( (matcher = elementMatchers[j++]) ) {
						if ( matcher( elem, context || document, xml) ) {
							results.push( elem );
							break;
						}
					}
					if ( outermost ) {
						dirruns = dirrunsUnique;
					}
				}

				// Track unmatched elements for set filters
				if ( bySet ) {
					// They will have gone through all possible matchers
					if ( (elem = !matcher && elem) ) {
						matchedCount--;
					}

					// Lengthen the array for every element, matched or not
					if ( seed ) {
						unmatched.push( elem );
					}
				}
			}

			// `i` is now the count of elements visited above, and adding it to `matchedCount`
			// makes the latter nonnegative.
			matchedCount += i;

			// Apply set filters to unmatched elements
			// NOTE: This can be skipped if there are no unmatched elements (i.e., `matchedCount`
			// equals `i`), unless we didn't visit _any_ elements in the above loop because we have
			// no element matchers and no seed.
			// Incrementing an initially-string "0" `i` allows `i` to remain a string only in that
			// case, which will result in a "00" `matchedCount` that differs from `i` but is also
			// numerically zero.
			if ( bySet && i !== matchedCount ) {
				j = 0;
				while ( (matcher = setMatchers[j++]) ) {
					matcher( unmatched, setMatched, context, xml );
				}

				if ( seed ) {
					// Reintegrate element matches to eliminate the need for sorting
					if ( matchedCount > 0 ) {
						while ( i-- ) {
							if ( !(unmatched[i] || setMatched[i]) ) {
								setMatched[i] = pop.call( results );
							}
						}
					}

					// Discard index placeholder values to get only actual matches
					setMatched = condense( setMatched );
				}

				// Add matches to results
				push.apply( results, setMatched );

				// Seedless set matches succeeding multiple successful matchers stipulate sorting
				if ( outermost && !seed && setMatched.length > 0 &&
					( matchedCount + setMatchers.length ) > 1 ) {

					Sizzle.uniqueSort( results );
				}
			}

			// Override manipulation of globals by nested matchers
			if ( outermost ) {
				dirruns = dirrunsUnique;
				outermostContext = contextBackup;
			}

			return unmatched;
		};

	return bySet ?
		markFunction( superMatcher ) :
		superMatcher;
}

compile = Sizzle.compile = function( selector, match /* Internal Use Only */ ) {
	var i,
		setMatchers = [],
		elementMatchers = [],
		cached = compilerCache[ selector + " " ];

	if ( !cached ) {
		// Generate a function of recursive functions that can be used to check each element
		if ( !match ) {
			match = tokenize( selector );
		}
		i = match.length;
		while ( i-- ) {
			cached = matcherFromTokens( match[i] );
			if ( cached[ expando ] ) {
				setMatchers.push( cached );
			} else {
				elementMatchers.push( cached );
			}
		}

		// Cache the compiled function
		cached = compilerCache( selector, matcherFromGroupMatchers( elementMatchers, setMatchers ) );

		// Save selector and tokenization
		cached.selector = selector;
	}
	return cached;
};

/**
 * A low-level selection function that works with Sizzle's compiled
 *  selector functions
 * @param {String|Function} selector A selector or a pre-compiled
 *  selector function built with Sizzle.compile
 * @param {Element} context
 * @param {Array} [results]
 * @param {Array} [seed] A set of elements to match against
 */
select = Sizzle.select = function( selector, context, results, seed ) {
	var i, tokens, token, type, find,
		compiled = typeof selector === "function" && selector,
		match = !seed && tokenize( (selector = compiled.selector || selector) );

	results = results || [];

	// Try to minimize operations if there is only one selector in the list and no seed
	// (the latter of which guarantees us context)
	if ( match.length === 1 ) {

		// Reduce context if the leading compound selector is an ID
		tokens = match[0] = match[0].slice( 0 );
		if ( tokens.length > 2 && (token = tokens[0]).type === "ID" &&
				support.getById && context.nodeType === 9 && documentIsHTML &&
				Expr.relative[ tokens[1].type ] ) {

			context = ( Expr.find["ID"]( token.matches[0].replace(runescape, funescape), context ) || [] )[0];
			if ( !context ) {
				return results;

			// Precompiled matchers will still verify ancestry, so step up a level
			} else if ( compiled ) {
				context = context.parentNode;
			}

			selector = selector.slice( tokens.shift().value.length );
		}

		// Fetch a seed set for right-to-left matching
		i = matchExpr["needsContext"].test( selector ) ? 0 : tokens.length;
		while ( i-- ) {
			token = tokens[i];

			// Abort if we hit a combinator
			if ( Expr.relative[ (type = token.type) ] ) {
				break;
			}
			if ( (find = Expr.find[ type ]) ) {
				// Search, expanding context for leading sibling combinators
				if ( (seed = find(
					token.matches[0].replace( runescape, funescape ),
					rsibling.test( tokens[0].type ) && testContext( context.parentNode ) || context
				)) ) {

					// If seed is empty or no tokens remain, we can return early
					tokens.splice( i, 1 );
					selector = seed.length && toSelector( tokens );
					if ( !selector ) {
						push.apply( results, seed );
						return results;
					}

					break;
				}
			}
		}
	}

	// Compile and execute a filtering function if one is not provided
	// Provide `match` to avoid retokenization if we modified the selector above
	( compiled || compile( selector, match ) )(
		seed,
		context,
		!documentIsHTML,
		results,
		!context || rsibling.test( selector ) && testContext( context.parentNode ) || context
	);
	return results;
};

// One-time assignments

// Sort stability
support.sortStable = expando.split("").sort( sortOrder ).join("") === expando;

// Support: Chrome 14-35+
// Always assume duplicates if they aren't passed to the comparison function
support.detectDuplicates = !!hasDuplicate;

// Initialize against the default document
setDocument();

// Support: Webkit<537.32 - Safari 6.0.3/Chrome 25 (fixed in Chrome 27)
// Detached nodes confoundingly follow *each other*
support.sortDetached = assert(function( div1 ) {
	// Should return 1, but returns 4 (following)
	return div1.compareDocumentPosition( document.createElement("div") ) & 1;
});

// Support: IE<8
// Prevent attribute/property "interpolation"
// http://msdn.microsoft.com/en-us/library/ms536429%28VS.85%29.aspx
if ( !assert(function( div ) {
	div.innerHTML = "<a href='#'></a>";
	return div.firstChild.getAttribute("href") === "#" ;
}) ) {
	addHandle( "type|href|height|width", function( elem, name, isXML ) {
		if ( !isXML ) {
			return elem.getAttribute( name, name.toLowerCase() === "type" ? 1 : 2 );
		}
	});
}

// Support: IE<9
// Use defaultValue in place of getAttribute("value")
if ( !support.attributes || !assert(function( div ) {
	div.innerHTML = "<input/>";
	div.firstChild.setAttribute( "value", "" );
	return div.firstChild.getAttribute( "value" ) === "";
}) ) {
	addHandle( "value", function( elem, name, isXML ) {
		if ( !isXML && elem.nodeName.toLowerCase() === "input" ) {
			return elem.defaultValue;
		}
	});
}

// Support: IE<9
// Use getAttributeNode to fetch booleans when getAttribute lies
if ( !assert(function( div ) {
	return div.getAttribute("disabled") == null;
}) ) {
	addHandle( booleans, function( elem, name, isXML ) {
		var val;
		if ( !isXML ) {
			return elem[ name ] === true ? name.toLowerCase() :
					(val = elem.getAttributeNode( name )) && val.specified ?
					val.value :
				null;
		}
	});
}

return Sizzle;

})( window );



jQuery.find = Sizzle;
jQuery.expr = Sizzle.selectors;
jQuery.expr[ ":" ] = jQuery.expr.pseudos;
jQuery.uniqueSort = jQuery.unique = Sizzle.uniqueSort;
jQuery.text = Sizzle.getText;
jQuery.isXMLDoc = Sizzle.isXML;
jQuery.contains = Sizzle.contains;



var dir = function( elem, dir, until ) {
	var matched = [],
		truncate = until !== undefined;

	while ( ( elem = elem[ dir ] ) && elem.nodeType !== 9 ) {
		if ( elem.nodeType === 1 ) {
			if ( truncate && jQuery( elem ).is( until ) ) {
				break;
			}
			matched.push( elem );
		}
	}
	return matched;
};


var siblings = function( n, elem ) {
	var matched = [];

	for ( ; n; n = n.nextSibling ) {
		if ( n.nodeType === 1 && n !== elem ) {
			matched.push( n );
		}
	}

	return matched;
};


var rneedsContext = jQuery.expr.match.needsContext;

var rsingleTag = ( /^<([\w-]+)\s*\/?>(?:<\/\1>|)$/ );



var risSimple = /^.[^:#\[\.,]*$/;

// Implement the identical functionality for filter and not
function winnow( elements, qualifier, not ) {
	if ( jQuery.isFunction( qualifier ) ) {
		return jQuery.grep( elements, function( elem, i ) {
			/* jshint -W018 */
			return !!qualifier.call( elem, i, elem ) !== not;
		} );

	}

	if ( qualifier.nodeType ) {
		return jQuery.grep( elements, function( elem ) {
			return ( elem === qualifier ) !== not;
		} );

	}

	if ( typeof qualifier === "string" ) {
		if ( risSimple.test( qualifier ) ) {
			return jQuery.filter( qualifier, elements, not );
		}

		qualifier = jQuery.filter( qualifier, elements );
	}

	return jQuery.grep( elements, function( elem ) {
		return ( indexOf.call( qualifier, elem ) > -1 ) !== not;
	} );
}

jQuery.filter = function( expr, elems, not ) {
	var elem = elems[ 0 ];

	if ( not ) {
		expr = ":not(" + expr + ")";
	}

	return elems.length === 1 && elem.nodeType === 1 ?
		jQuery.find.matchesSelector( elem, expr ) ? [ elem ] : [] :
		jQuery.find.matches( expr, jQuery.grep( elems, function( elem ) {
			return elem.nodeType === 1;
		} ) );
};

jQuery.fn.extend( {
	find: function( selector ) {
		var i,
			len = this.length,
			ret = [],
			self = this;

		if ( typeof selector !== "string" ) {
			return this.pushStack( jQuery( selector ).filter( function() {
				for ( i = 0; i < len; i++ ) {
					if ( jQuery.contains( self[ i ], this ) ) {
						return true;
					}
				}
			} ) );
		}

		for ( i = 0; i < len; i++ ) {
			jQuery.find( selector, self[ i ], ret );
		}

		// Needed because $( selector, context ) becomes $( context ).find( selector )
		ret = this.pushStack( len > 1 ? jQuery.unique( ret ) : ret );
		ret.selector = this.selector ? this.selector + " " + selector : selector;
		return ret;
	},
	filter: function( selector ) {
		return this.pushStack( winnow( this, selector || [], false ) );
	},
	not: function( selector ) {
		return this.pushStack( winnow( this, selector || [], true ) );
	},
	is: function( selector ) {
		return !!winnow(
			this,

			// If this is a positional/relative selector, check membership in the returned set
			// so $("p:first").is("p:last") won't return true for a doc with two "p".
			typeof selector === "string" && rneedsContext.test( selector ) ?
				jQuery( selector ) :
				selector || [],
			false
		).length;
	}
} );


// Initialize a jQuery object


// A central reference to the root jQuery(document)
var rootjQuery,

	// A simple way to check for HTML strings
	// Prioritize #id over <tag> to avoid XSS via location.hash (#9521)
	// Strict HTML recognition (#11290: must start with <)
	rquickExpr = /^(?:\s*(<[\w\W]+>)[^>]*|#([\w-]*))$/,

	init = jQuery.fn.init = function( selector, context, root ) {
		var match, elem;

		// HANDLE: $(""), $(null), $(undefined), $(false)
		if ( !selector ) {
			return this;
		}

		// Method init() accepts an alternate rootjQuery
		// so migrate can support jQuery.sub (gh-2101)
		root = root || rootjQuery;

		// Handle HTML strings
		if ( typeof selector === "string" ) {
			if ( selector[ 0 ] === "<" &&
				selector[ selector.length - 1 ] === ">" &&
				selector.length >= 3 ) {

				// Assume that strings that start and end with <> are HTML and skip the regex check
				match = [ null, selector, null ];

			} else {
				match = rquickExpr.exec( selector );
			}

			// Match html or make sure no context is specified for #id
			if ( match && ( match[ 1 ] || !context ) ) {

				// HANDLE: $(html) -> $(array)
				if ( match[ 1 ] ) {
					context = context instanceof jQuery ? context[ 0 ] : context;

					// Option to run scripts is true for back-compat
					// Intentionally let the error be thrown if parseHTML is not present
					jQuery.merge( this, jQuery.parseHTML(
						match[ 1 ],
						context && context.nodeType ? context.ownerDocument || context : document,
						true
					) );

					// HANDLE: $(html, props)
					if ( rsingleTag.test( match[ 1 ] ) && jQuery.isPlainObject( context ) ) {
						for ( match in context ) {

							// Properties of context are called as methods if possible
							if ( jQuery.isFunction( this[ match ] ) ) {
								this[ match ]( context[ match ] );

							// ...and otherwise set as attributes
							} else {
								this.attr( match, context[ match ] );
							}
						}
					}

					return this;

				// HANDLE: $(#id)
				} else {
					elem = document.getElementById( match[ 2 ] );

					// Support: Blackberry 4.6
					// gEBID returns nodes no longer in the document (#6963)
					if ( elem && elem.parentNode ) {

						// Inject the element directly into the jQuery object
						this.length = 1;
						this[ 0 ] = elem;
					}

					this.context = document;
					this.selector = selector;
					return this;
				}

			// HANDLE: $(expr, $(...))
			} else if ( !context || context.jquery ) {
				return ( context || root ).find( selector );

			// HANDLE: $(expr, context)
			// (which is just equivalent to: $(context).find(expr)
			} else {
				return this.constructor( context ).find( selector );
			}

		// HANDLE: $(DOMElement)
		} else if ( selector.nodeType ) {
			this.context = this[ 0 ] = selector;
			this.length = 1;
			return this;

		// HANDLE: $(function)
		// Shortcut for document ready
		} else if ( jQuery.isFunction( selector ) ) {
			return root.ready !== undefined ?
				root.ready( selector ) :

				// Execute immediately if ready is not present
				selector( jQuery );
		}

		if ( selector.selector !== undefined ) {
			this.selector = selector.selector;
			this.context = selector.context;
		}

		return jQuery.makeArray( selector, this );
	};

// Give the init function the jQuery prototype for later instantiation
init.prototype = jQuery.fn;

// Initialize central reference
rootjQuery = jQuery( document );


var rparentsprev = /^(?:parents|prev(?:Until|All))/,

	// Methods guaranteed to produce a unique set when starting from a unique set
	guaranteedUnique = {
		children: true,
		contents: true,
		next: true,
		prev: true
	};

jQuery.fn.extend( {
	has: function( target ) {
		var targets = jQuery( target, this ),
			l = targets.length;

		return this.filter( function() {
			var i = 0;
			for ( ; i < l; i++ ) {
				if ( jQuery.contains( this, targets[ i ] ) ) {
					return true;
				}
			}
		} );
	},

	closest: function( selectors, context ) {
		var cur,
			i = 0,
			l = this.length,
			matched = [],
			pos = rneedsContext.test( selectors ) || typeof selectors !== "string" ?
				jQuery( selectors, context || this.context ) :
				0;

		for ( ; i < l; i++ ) {
			for ( cur = this[ i ]; cur && cur !== context; cur = cur.parentNode ) {

				// Always skip document fragments
				if ( cur.nodeType < 11 && ( pos ?
					pos.index( cur ) > -1 :

					// Don't pass non-elements to Sizzle
					cur.nodeType === 1 &&
						jQuery.find.matchesSelector( cur, selectors ) ) ) {

					matched.push( cur );
					break;
				}
			}
		}

		return this.pushStack( matched.length > 1 ? jQuery.uniqueSort( matched ) : matched );
	},

	// Determine the position of an element within the set
	index: function( elem ) {

		// No argument, return index in parent
		if ( !elem ) {
			return ( this[ 0 ] && this[ 0 ].parentNode ) ? this.first().prevAll().length : -1;
		}

		// Index in selector
		if ( typeof elem === "string" ) {
			return indexOf.call( jQuery( elem ), this[ 0 ] );
		}

		// Locate the position of the desired element
		return indexOf.call( this,

			// If it receives a jQuery object, the first element is used
			elem.jquery ? elem[ 0 ] : elem
		);
	},

	add: function( selector, context ) {
		return this.pushStack(
			jQuery.uniqueSort(
				jQuery.merge( this.get(), jQuery( selector, context ) )
			)
		);
	},

	addBack: function( selector ) {
		return this.add( selector == null ?
			this.prevObject : this.prevObject.filter( selector )
		);
	}
} );

function sibling( cur, dir ) {
	while ( ( cur = cur[ dir ] ) && cur.nodeType !== 1 ) {}
	return cur;
}

jQuery.each( {
	parent: function( elem ) {
		var parent = elem.parentNode;
		return parent && parent.nodeType !== 11 ? parent : null;
	},
	parents: function( elem ) {
		return dir( elem, "parentNode" );
	},
	parentsUntil: function( elem, i, until ) {
		return dir( elem, "parentNode", until );
	},
	next: function( elem ) {
		return sibling( elem, "nextSibling" );
	},
	prev: function( elem ) {
		return sibling( elem, "previousSibling" );
	},
	nextAll: function( elem ) {
		return dir( elem, "nextSibling" );
	},
	prevAll: function( elem ) {
		return dir( elem, "previousSibling" );
	},
	nextUntil: function( elem, i, until ) {
		return dir( elem, "nextSibling", until );
	},
	prevUntil: function( elem, i, until ) {
		return dir( elem, "previousSibling", until );
	},
	siblings: function( elem ) {
		return siblings( ( elem.parentNode || {} ).firstChild, elem );
	},
	children: function( elem ) {
		return siblings( elem.firstChild );
	},
	contents: function( elem ) {
		return elem.contentDocument || jQuery.merge( [], elem.childNodes );
	}
}, function( name, fn ) {
	jQuery.fn[ name ] = function( until, selector ) {
		var matched = jQuery.map( this, fn, until );

		if ( name.slice( -5 ) !== "Until" ) {
			selector = until;
		}

		if ( selector && typeof selector === "string" ) {
			matched = jQuery.filter( selector, matched );
		}

		if ( this.length > 1 ) {

			// Remove duplicates
			if ( !guaranteedUnique[ name ] ) {
				jQuery.uniqueSort( matched );
			}

			// Reverse order for parents* and prev-derivatives
			if ( rparentsprev.test( name ) ) {
				matched.reverse();
			}
		}

		return this.pushStack( matched );
	};
} );
var rnotwhite = ( /\S+/g );



// Convert String-formatted options into Object-formatted ones
function createOptions( options ) {
	var object = {};
	jQuery.each( options.match( rnotwhite ) || [], function( _, flag ) {
		object[ flag ] = true;
	} );
	return object;
}

/*
 * Create a callback list using the following parameters:
 *
 *	options: an optional list of space-separated options that will change how
 *			the callback list behaves or a more traditional option object
 *
 * By default a callback list will act like an event callback list and can be
 * "fired" multiple times.
 *
 * Possible options:
 *
 *	once:			will ensure the callback list can only be fired once (like a Deferred)
 *
 *	memory:			will keep track of previous values and will call any callback added
 *					after the list has been fired right away with the latest "memorized"
 *					values (like a Deferred)
 *
 *	unique:			will ensure a callback can only be added once (no duplicate in the list)
 *
 *	stopOnFalse:	interrupt callings when a callback returns false
 *
 */
jQuery.Callbacks = function( options ) {

	// Convert options from String-formatted to Object-formatted if needed
	// (we check in cache first)
	options = typeof options === "string" ?
		createOptions( options ) :
		jQuery.extend( {}, options );

	var // Flag to know if list is currently firing
		firing,

		// Last fire value for non-forgettable lists
		memory,

		// Flag to know if list was already fired
		fired,

		// Flag to prevent firing
		locked,

		// Actual callback list
		list = [],

		// Queue of execution data for repeatable lists
		queue = [],

		// Index of currently firing callback (modified by add/remove as needed)
		firingIndex = -1,

		// Fire callbacks
		fire = function() {

			// Enforce single-firing
			locked = options.once;

			// Execute callbacks for all pending executions,
			// respecting firingIndex overrides and runtime changes
			fired = firing = true;
			for ( ; queue.length; firingIndex = -1 ) {
				memory = queue.shift();
				while ( ++firingIndex < list.length ) {

					// Run callback and check for early termination
					if ( list[ firingIndex ].apply( memory[ 0 ], memory[ 1 ] ) === false &&
						options.stopOnFalse ) {

						// Jump to end and forget the data so .add doesn't re-fire
						firingIndex = list.length;
						memory = false;
					}
				}
			}

			// Forget the data if we're done with it
			if ( !options.memory ) {
				memory = false;
			}

			firing = false;

			// Clean up if we're done firing for good
			if ( locked ) {

				// Keep an empty list if we have data for future add calls
				if ( memory ) {
					list = [];

				// Otherwise, this object is spent
				} else {
					list = "";
				}
			}
		},

		// Actual Callbacks object
		self = {

			// Add a callback or a collection of callbacks to the list
			add: function() {
				if ( list ) {

					// If we have memory from a past run, we should fire after adding
					if ( memory && !firing ) {
						firingIndex = list.length - 1;
						queue.push( memory );
					}

					( function add( args ) {
						jQuery.each( args, function( _, arg ) {
							if ( jQuery.isFunction( arg ) ) {
								if ( !options.unique || !self.has( arg ) ) {
									list.push( arg );
								}
							} else if ( arg && arg.length && jQuery.type( arg ) !== "string" ) {

								// Inspect recursively
								add( arg );
							}
						} );
					} )( arguments );

					if ( memory && !firing ) {
						fire();
					}
				}
				return this;
			},

			// Remove a callback from the list
			remove: function() {
				jQuery.each( arguments, function( _, arg ) {
					var index;
					while ( ( index = jQuery.inArray( arg, list, index ) ) > -1 ) {
						list.splice( index, 1 );

						// Handle firing indexes
						if ( index <= firingIndex ) {
							firingIndex--;
						}
					}
				} );
				return this;
			},

			// Check if a given callback is in the list.
			// If no argument is given, return whether or not list has callbacks attached.
			has: function( fn ) {
				return fn ?
					jQuery.inArray( fn, list ) > -1 :
					list.length > 0;
			},

			// Remove all callbacks from the list
			empty: function() {
				if ( list ) {
					list = [];
				}
				return this;
			},

			// Disable .fire and .add
			// Abort any current/pending executions
			// Clear all callbacks and values
			disable: function() {
				locked = queue = [];
				list = memory = "";
				return this;
			},
			disabled: function() {
				return !list;
			},

			// Disable .fire
			// Also disable .add unless we have memory (since it would have no effect)
			// Abort any pending executions
			lock: function() {
				locked = queue = [];
				if ( !memory ) {
					list = memory = "";
				}
				return this;
			},
			locked: function() {
				return !!locked;
			},

			// Call all callbacks with the given context and arguments
			fireWith: function( context, args ) {
				if ( !locked ) {
					args = args || [];
					args = [ context, args.slice ? args.slice() : args ];
					queue.push( args );
					if ( !firing ) {
						fire();
					}
				}
				return this;
			},

			// Call all the callbacks with the given arguments
			fire: function() {
				self.fireWith( this, arguments );
				return this;
			},

			// To know if the callbacks have already been called at least once
			fired: function() {
				return !!fired;
			}
		};

	return self;
};


jQuery.extend( {

	Deferred: function( func ) {
		var tuples = [

				// action, add listener, listener list, final state
				[ "resolve", "done", jQuery.Callbacks( "once memory" ), "resolved" ],
				[ "reject", "fail", jQuery.Callbacks( "once memory" ), "rejected" ],
				[ "notify", "progress", jQuery.Callbacks( "memory" ) ]
			],
			state = "pending",
			promise = {
				state: function() {
					return state;
				},
				always: function() {
					deferred.done( arguments ).fail( arguments );
					return this;
				},
				then: function( /* fnDone, fnFail, fnProgress */ ) {
					var fns = arguments;
					return jQuery.Deferred( function( newDefer ) {
						jQuery.each( tuples, function( i, tuple ) {
							var fn = jQuery.isFunction( fns[ i ] ) && fns[ i ];

							// deferred[ done | fail | progress ] for forwarding actions to newDefer
							deferred[ tuple[ 1 ] ]( function() {
								var returned = fn && fn.apply( this, arguments );
								if ( returned && jQuery.isFunction( returned.promise ) ) {
									returned.promise()
										.progress( newDefer.notify )
										.done( newDefer.resolve )
										.fail( newDefer.reject );
								} else {
									newDefer[ tuple[ 0 ] + "With" ](
										this === promise ? newDefer.promise() : this,
										fn ? [ returned ] : arguments
									);
								}
							} );
						} );
						fns = null;
					} ).promise();
				},

				// Get a promise for this deferred
				// If obj is provided, the promise aspect is added to the object
				promise: function( obj ) {
					return obj != null ? jQuery.extend( obj, promise ) : promise;
				}
			},
			deferred = {};

		// Keep pipe for back-compat
		promise.pipe = promise.then;

		// Add list-specific methods
		jQuery.each( tuples, function( i, tuple ) {
			var list = tuple[ 2 ],
				stateString = tuple[ 3 ];

			// promise[ done | fail | progress ] = list.add
			promise[ tuple[ 1 ] ] = list.add;

			// Handle state
			if ( stateString ) {
				list.add( function() {

					// state = [ resolved | rejected ]
					state = stateString;

				// [ reject_list | resolve_list ].disable; progress_list.lock
				}, tuples[ i ^ 1 ][ 2 ].disable, tuples[ 2 ][ 2 ].lock );
			}

			// deferred[ resolve | reject | notify ]
			deferred[ tuple[ 0 ] ] = function() {
				deferred[ tuple[ 0 ] + "With" ]( this === deferred ? promise : this, arguments );
				return this;
			};
			deferred[ tuple[ 0 ] + "With" ] = list.fireWith;
		} );

		// Make the deferred a promise
		promise.promise( deferred );

		// Call given func if any
		if ( func ) {
			func.call( deferred, deferred );
		}

		// All done!
		return deferred;
	},

	// Deferred helper
	when: function( subordinate /* , ..., subordinateN */ ) {
		var i = 0,
			resolveValues = slice.call( arguments ),
			length = resolveValues.length,

			// the count of uncompleted subordinates
			remaining = length !== 1 ||
				( subordinate && jQuery.isFunction( subordinate.promise ) ) ? length : 0,

			// the master Deferred.
			// If resolveValues consist of only a single Deferred, just use that.
			deferred = remaining === 1 ? subordinate : jQuery.Deferred(),

			// Update function for both resolve and progress values
			updateFunc = function( i, contexts, values ) {
				return function( value ) {
					contexts[ i ] = this;
					values[ i ] = arguments.length > 1 ? slice.call( arguments ) : value;
					if ( values === progressValues ) {
						deferred.notifyWith( contexts, values );
					} else if ( !( --remaining ) ) {
						deferred.resolveWith( contexts, values );
					}
				};
			},

			progressValues, progressContexts, resolveContexts;

		// Add listeners to Deferred subordinates; treat others as resolved
		if ( length > 1 ) {
			progressValues = new Array( length );
			progressContexts = new Array( length );
			resolveContexts = new Array( length );
			for ( ; i < length; i++ ) {
				if ( resolveValues[ i ] && jQuery.isFunction( resolveValues[ i ].promise ) ) {
					resolveValues[ i ].promise()
						.progress( updateFunc( i, progressContexts, progressValues ) )
						.done( updateFunc( i, resolveContexts, resolveValues ) )
						.fail( deferred.reject );
				} else {
					--remaining;
				}
			}
		}

		// If we're not waiting on anything, resolve the master
		if ( !remaining ) {
			deferred.resolveWith( resolveContexts, resolveValues );
		}

		return deferred.promise();
	}
} );


// The deferred used on DOM ready
var readyList;

jQuery.fn.ready = function( fn ) {

	// Add the callback
	jQuery.ready.promise().done( fn );

	return this;
};

jQuery.extend( {

	// Is the DOM ready to be used? Set to true once it occurs.
	isReady: false,

	// A counter to track how many items to wait for before
	// the ready event fires. See #6781
	readyWait: 1,

	// Hold (or release) the ready event
	holdReady: function( hold ) {
		if ( hold ) {
			jQuery.readyWait++;
		} else {
			jQuery.ready( true );
		}
	},

	// Handle when the DOM is ready
	ready: function( wait ) {

		// Abort if there are pending holds or we're already ready
		if ( wait === true ? --jQuery.readyWait : jQuery.isReady ) {
			return;
		}

		// Remember that the DOM is ready
		jQuery.isReady = true;

		// If a normal DOM Ready event fired, decrement, and wait if need be
		if ( wait !== true && --jQuery.readyWait > 0 ) {
			return;
		}

		// If there are functions bound, to execute
		readyList.resolveWith( document, [ jQuery ] );

		// Trigger any bound ready events
		if ( jQuery.fn.triggerHandler ) {
			jQuery( document ).triggerHandler( "ready" );
			jQuery( document ).off( "ready" );
		}
	}
} );

/**
 * The ready event handler and self cleanup method
 */
function completed() {
	document.removeEventListener( "DOMContentLoaded", completed );
	window.removeEventListener( "load", completed );
	jQuery.ready();
}

jQuery.ready.promise = function( obj ) {
	if ( !readyList ) {

		readyList = jQuery.Deferred();

		// Catch cases where $(document).ready() is called
		// after the browser event has already occurred.
		// Support: IE9-10 only
		// Older IE sometimes signals "interactive" too soon
		if ( document.readyState === "complete" ||
			( document.readyState !== "loading" && !document.documentElement.doScroll ) ) {

			// Handle it asynchronously to allow scripts the opportunity to delay ready
			window.setTimeout( jQuery.ready );

		} else {

			// Use the handy event callback
			document.addEventListener( "DOMContentLoaded", completed );

			// A fallback to window.onload, that will always work
			window.addEventListener( "load", completed );
		}
	}
	return readyList.promise( obj );
};

// Kick off the DOM ready check even if the user does not
jQuery.ready.promise();




// Multifunctional method to get and set values of a collection
// The value/s can optionally be executed if it's a function
var access = function( elems, fn, key, value, chainable, emptyGet, raw ) {
	var i = 0,
		len = elems.length,
		bulk = key == null;

	// Sets many values
	if ( jQuery.type( key ) === "object" ) {
		chainable = true;
		for ( i in key ) {
			access( elems, fn, i, key[ i ], true, emptyGet, raw );
		}

	// Sets one value
	} else if ( value !== undefined ) {
		chainable = true;

		if ( !jQuery.isFunction( value ) ) {
			raw = true;
		}

		if ( bulk ) {

			// Bulk operations run against the entire set
			if ( raw ) {
				fn.call( elems, value );
				fn = null;

			// ...except when executing function values
			} else {
				bulk = fn;
				fn = function( elem, key, value ) {
					return bulk.call( jQuery( elem ), value );
				};
			}
		}

		if ( fn ) {
			for ( ; i < len; i++ ) {
				fn(
					elems[ i ], key, raw ?
					value :
					value.call( elems[ i ], i, fn( elems[ i ], key ) )
				);
			}
		}
	}

	return chainable ?
		elems :

		// Gets
		bulk ?
			fn.call( elems ) :
			len ? fn( elems[ 0 ], key ) : emptyGet;
};
var acceptData = function( owner ) {

	// Accepts only:
	//  - Node
	//    - Node.ELEMENT_NODE
	//    - Node.DOCUMENT_NODE
	//  - Object
	//    - Any
	/* jshint -W018 */
	return owner.nodeType === 1 || owner.nodeType === 9 || !( +owner.nodeType );
};




function Data() {
	this.expando = jQuery.expando + Data.uid++;
}

Data.uid = 1;

Data.prototype = {

	register: function( owner, initial ) {
		var value = initial || {};

		// If it is a node unlikely to be stringify-ed or looped over
		// use plain assignment
		if ( owner.nodeType ) {
			owner[ this.expando ] = value;

		// Otherwise secure it in a non-enumerable, non-writable property
		// configurability must be true to allow the property to be
		// deleted with the delete operator
		} else {
			Object.defineProperty( owner, this.expando, {
				value: value,
				writable: true,
				configurable: true
			} );
		}
		return owner[ this.expando ];
	},
	cache: function( owner ) {

		// We can accept data for non-element nodes in modern browsers,
		// but we should not, see #8335.
		// Always return an empty object.
		if ( !acceptData( owner ) ) {
			return {};
		}

		// Check if the owner object already has a cache
		var value = owner[ this.expando ];

		// If not, create one
		if ( !value ) {
			value = {};

			// We can accept data for non-element nodes in modern browsers,
			// but we should not, see #8335.
			// Always return an empty object.
			if ( acceptData( owner ) ) {

				// If it is a node unlikely to be stringify-ed or looped over
				// use plain assignment
				if ( owner.nodeType ) {
					owner[ this.expando ] = value;

				// Otherwise secure it in a non-enumerable property
				// configurable must be true to allow the property to be
				// deleted when data is removed
				} else {
					Object.defineProperty( owner, this.expando, {
						value: value,
						configurable: true
					} );
				}
			}
		}

		return value;
	},
	set: function( owner, data, value ) {
		var prop,
			cache = this.cache( owner );

		// Handle: [ owner, key, value ] args
		if ( typeof data === "string" ) {
			cache[ data ] = value;

		// Handle: [ owner, { properties } ] args
		} else {

			// Copy the properties one-by-one to the cache object
			for ( prop in data ) {
				cache[ prop ] = data[ prop ];
			}
		}
		return cache;
	},
	get: function( owner, key ) {
		return key === undefined ?
			this.cache( owner ) :
			owner[ this.expando ] && owner[ this.expando ][ key ];
	},
	access: function( owner, key, value ) {
		var stored;

		// In cases where either:
		//
		//   1. No key was specified
		//   2. A string key was specified, but no value provided
		//
		// Take the "read" path and allow the get method to determine
		// which value to return, respectively either:
		//
		//   1. The entire cache object
		//   2. The data stored at the key
		//
		if ( key === undefined ||
				( ( key && typeof key === "string" ) && value === undefined ) ) {

			stored = this.get( owner, key );

			return stored !== undefined ?
				stored : this.get( owner, jQuery.camelCase( key ) );
		}

		// When the key is not a string, or both a key and value
		// are specified, set or extend (existing objects) with either:
		//
		//   1. An object of properties
		//   2. A key and value
		//
		this.set( owner, key, value );

		// Since the "set" path can have two possible entry points
		// return the expected data based on which path was taken[*]
		return value !== undefined ? value : key;
	},
	remove: function( owner, key ) {
		var i, name, camel,
			cache = owner[ this.expando ];

		if ( cache === undefined ) {
			return;
		}

		if ( key === undefined ) {
			this.register( owner );

		} else {

			// Support array or space separated string of keys
			if ( jQuery.isArray( key ) ) {

				// If "name" is an array of keys...
				// When data is initially created, via ("key", "val") signature,
				// keys will be converted to camelCase.
				// Since there is no way to tell _how_ a key was added, remove
				// both plain key and camelCase key. #12786
				// This will only penalize the array argument path.
				name = key.concat( key.map( jQuery.camelCase ) );
			} else {
				camel = jQuery.camelCase( key );

				// Try the string as a key before any manipulation
				if ( key in cache ) {
					name = [ key, camel ];
				} else {

					// If a key with the spaces exists, use it.
					// Otherwise, create an array by matching non-whitespace
					name = camel;
					name = name in cache ?
						[ name ] : ( name.match( rnotwhite ) || [] );
				}
			}

			i = name.length;

			while ( i-- ) {
				delete cache[ name[ i ] ];
			}
		}

		// Remove the expando if there's no more data
		if ( key === undefined || jQuery.isEmptyObject( cache ) ) {

			// Support: Chrome <= 35-45+
			// Webkit & Blink performance suffers when deleting properties
			// from DOM nodes, so set to undefined instead
			// https://code.google.com/p/chromium/issues/detail?id=378607
			if ( owner.nodeType ) {
				owner[ this.expando ] = undefined;
			} else {
				delete owner[ this.expando ];
			}
		}
	},
	hasData: function( owner ) {
		var cache = owner[ this.expando ];
		return cache !== undefined && !jQuery.isEmptyObject( cache );
	}
};
var dataPriv = new Data();

var dataUser = new Data();



//	Implementation Summary
//
//	1. Enforce API surface and semantic compatibility with 1.9.x branch
//	2. Improve the module's maintainability by reducing the storage
//		paths to a single mechanism.
//	3. Use the same single mechanism to support "private" and "user" data.
//	4. _Never_ expose "private" data to user code (TODO: Drop _data, _removeData)
//	5. Avoid exposing implementation details on user objects (eg. expando properties)
//	6. Provide a clear path for implementation upgrade to WeakMap in 2014

var rbrace = /^(?:\{[\w\W]*\}|\[[\w\W]*\])$/,
	rmultiDash = /[A-Z]/g;

function dataAttr( elem, key, data ) {
	var name;

	// If nothing was found internally, try to fetch any
	// data from the HTML5 data-* attribute
	if ( data === undefined && elem.nodeType === 1 ) {
		name = "data-" + key.replace( rmultiDash, "-$&" ).toLowerCase();
		data = elem.getAttribute( name );

		if ( typeof data === "string" ) {
			try {
				data = data === "true" ? true :
					data === "false" ? false :
					data === "null" ? null :

					// Only convert to a number if it doesn't change the string
					+data + "" === data ? +data :
					rbrace.test( data ) ? jQuery.parseJSON( data ) :
					data;
			} catch ( e ) {}

			// Make sure we set the data so it isn't changed later
			dataUser.set( elem, key, data );
		} else {
			data = undefined;
		}
	}
	return data;
}

jQuery.extend( {
	hasData: function( elem ) {
		return dataUser.hasData( elem ) || dataPriv.hasData( elem );
	},

	data: function( elem, name, data ) {
		return dataUser.access( elem, name, data );
	},

	removeData: function( elem, name ) {
		dataUser.remove( elem, name );
	},

	// TODO: Now that all calls to _data and _removeData have been replaced
	// with direct calls to dataPriv methods, these can be deprecated.
	_data: function( elem, name, data ) {
		return dataPriv.access( elem, name, data );
	},

	_removeData: function( elem, name ) {
		dataPriv.remove( elem, name );
	}
} );

jQuery.fn.extend( {
	data: function( key, value ) {
		var i, name, data,
			elem = this[ 0 ],
			attrs = elem && elem.attributes;

		// Gets all values
		if ( key === undefined ) {
			if ( this.length ) {
				data = dataUser.get( elem );

				if ( elem.nodeType === 1 && !dataPriv.get( elem, "hasDataAttrs" ) ) {
					i = attrs.length;
					while ( i-- ) {

						// Support: IE11+
						// The attrs elements can be null (#14894)
						if ( attrs[ i ] ) {
							name = attrs[ i ].name;
							if ( name.indexOf( "data-" ) === 0 ) {
								name = jQuery.camelCase( name.slice( 5 ) );
								dataAttr( elem, name, data[ name ] );
							}
						}
					}
					dataPriv.set( elem, "hasDataAttrs", true );
				}
			}

			return data;
		}

		// Sets multiple values
		if ( typeof key === "object" ) {
			return this.each( function() {
				dataUser.set( this, key );
			} );
		}

		return access( this, function( value ) {
			var data, camelKey;

			// The calling jQuery object (element matches) is not empty
			// (and therefore has an element appears at this[ 0 ]) and the
			// `value` parameter was not undefined. An empty jQuery object
			// will result in `undefined` for elem = this[ 0 ] which will
			// throw an exception if an attempt to read a data cache is made.
			if ( elem && value === undefined ) {

				// Attempt to get data from the cache
				// with the key as-is
				data = dataUser.get( elem, key ) ||

					// Try to find dashed key if it exists (gh-2779)
					// This is for 2.2.x only
					dataUser.get( elem, key.replace( rmultiDash, "-$&" ).toLowerCase() );

				if ( data !== undefined ) {
					return data;
				}

				camelKey = jQuery.camelCase( key );

				// Attempt to get data from the cache
				// with the key camelized
				data = dataUser.get( elem, camelKey );
				if ( data !== undefined ) {
					return data;
				}

				// Attempt to "discover" the data in
				// HTML5 custom data-* attrs
				data = dataAttr( elem, camelKey, undefined );
				if ( data !== undefined ) {
					return data;
				}

				// We tried really hard, but the data doesn't exist.
				return;
			}

			// Set the data...
			camelKey = jQuery.camelCase( key );
			this.each( function() {

				// First, attempt to store a copy or reference of any
				// data that might've been store with a camelCased key.
				var data = dataUser.get( this, camelKey );

				// For HTML5 data-* attribute interop, we have to
				// store property names with dashes in a camelCase form.
				// This might not apply to all properties...*
				dataUser.set( this, camelKey, value );

				// *... In the case of properties that might _actually_
				// have dashes, we need to also store a copy of that
				// unchanged property.
				if ( key.indexOf( "-" ) > -1 && data !== undefined ) {
					dataUser.set( this, key, value );
				}
			} );
		}, null, value, arguments.length > 1, null, true );
	},

	removeData: function( key ) {
		return this.each( function() {
			dataUser.remove( this, key );
		} );
	}
} );


jQuery.extend( {
	queue: function( elem, type, data ) {
		var queue;

		if ( elem ) {
			type = ( type || "fx" ) + "queue";
			queue = dataPriv.get( elem, type );

			// Speed up dequeue by getting out quickly if this is just a lookup
			if ( data ) {
				if ( !queue || jQuery.isArray( data ) ) {
					queue = dataPriv.access( elem, type, jQuery.makeArray( data ) );
				} else {
					queue.push( data );
				}
			}
			return queue || [];
		}
	},

	dequeue: function( elem, type ) {
		type = type || "fx";

		var queue = jQuery.queue( elem, type ),
			startLength = queue.length,
			fn = queue.shift(),
			hooks = jQuery._queueHooks( elem, type ),
			next = function() {
				jQuery.dequeue( elem, type );
			};

		// If the fx queue is dequeued, always remove the progress sentinel
		if ( fn === "inprogress" ) {
			fn = queue.shift();
			startLength--;
		}

		if ( fn ) {

			// Add a progress sentinel to prevent the fx queue from being
			// automatically dequeued
			if ( type === "fx" ) {
				queue.unshift( "inprogress" );
			}

			// Clear up the last queue stop function
			delete hooks.stop;
			fn.call( elem, next, hooks );
		}

		if ( !startLength && hooks ) {
			hooks.empty.fire();
		}
	},

	// Not public - generate a queueHooks object, or return the current one
	_queueHooks: function( elem, type ) {
		var key = type + "queueHooks";
		return dataPriv.get( elem, key ) || dataPriv.access( elem, key, {
			empty: jQuery.Callbacks( "once memory" ).add( function() {
				dataPriv.remove( elem, [ type + "queue", key ] );
			} )
		} );
	}
} );

jQuery.fn.extend( {
	queue: function( type, data ) {
		var setter = 2;

		if ( typeof type !== "string" ) {
			data = type;
			type = "fx";
			setter--;
		}

		if ( arguments.length < setter ) {
			return jQuery.queue( this[ 0 ], type );
		}

		return data === undefined ?
			this :
			this.each( function() {
				var queue = jQuery.queue( this, type, data );

				// Ensure a hooks for this queue
				jQuery._queueHooks( this, type );

				if ( type === "fx" && queue[ 0 ] !== "inprogress" ) {
					jQuery.dequeue( this, type );
				}
			} );
	},
	dequeue: function( type ) {
		return this.each( function() {
			jQuery.dequeue( this, type );
		} );
	},
	clearQueue: function( type ) {
		return this.queue( type || "fx", [] );
	},

	// Get a promise resolved when queues of a certain type
	// are emptied (fx is the type by default)
	promise: function( type, obj ) {
		var tmp,
			count = 1,
			defer = jQuery.Deferred(),
			elements = this,
			i = this.length,
			resolve = function() {
				if ( !( --count ) ) {
					defer.resolveWith( elements, [ elements ] );
				}
			};

		if ( typeof type !== "string" ) {
			obj = type;
			type = undefined;
		}
		type = type || "fx";

		while ( i-- ) {
			tmp = dataPriv.get( elements[ i ], type + "queueHooks" );
			if ( tmp && tmp.empty ) {
				count++;
				tmp.empty.add( resolve );
			}
		}
		resolve();
		return defer.promise( obj );
	}
} );
var pnum = ( /[+-]?(?:\d*\.|)\d+(?:[eE][+-]?\d+|)/ ).source;

var rcssNum = new RegExp( "^(?:([+-])=|)(" + pnum + ")([a-z%]*)$", "i" );


var cssExpand = [ "Top", "Right", "Bottom", "Left" ];

var isHidden = function( elem, el ) {

		// isHidden might be called from jQuery#filter function;
		// in that case, element will be second argument
		elem = el || elem;
		return jQuery.css( elem, "display" ) === "none" ||
			!jQuery.contains( elem.ownerDocument, elem );
	};



function adjustCSS( elem, prop, valueParts, tween ) {
	var adjusted,
		scale = 1,
		maxIterations = 20,
		currentValue = tween ?
			function() { return tween.cur(); } :
			function() { return jQuery.css( elem, prop, "" ); },
		initial = currentValue(),
		unit = valueParts && valueParts[ 3 ] || ( jQuery.cssNumber[ prop ] ? "" : "px" ),

		// Starting value computation is required for potential unit mismatches
		initialInUnit = ( jQuery.cssNumber[ prop ] || unit !== "px" && +initial ) &&
			rcssNum.exec( jQuery.css( elem, prop ) );

	if ( initialInUnit && initialInUnit[ 3 ] !== unit ) {

		// Trust units reported by jQuery.css
		unit = unit || initialInUnit[ 3 ];

		// Make sure we update the tween properties later on
		valueParts = valueParts || [];

		// Iteratively approximate from a nonzero starting point
		initialInUnit = +initial || 1;

		do {

			// If previous iteration zeroed out, double until we get *something*.
			// Use string for doubling so we don't accidentally see scale as unchanged below
			scale = scale || ".5";

			// Adjust and apply
			initialInUnit = initialInUnit / scale;
			jQuery.style( elem, prop, initialInUnit + unit );

		// Update scale, tolerating zero or NaN from tween.cur()
		// Break the loop if scale is unchanged or perfect, or if we've just had enough.
		} while (
			scale !== ( scale = currentValue() / initial ) && scale !== 1 && --maxIterations
		);
	}

	if ( valueParts ) {
		initialInUnit = +initialInUnit || +initial || 0;

		// Apply relative offset (+=/-=) if specified
		adjusted = valueParts[ 1 ] ?
			initialInUnit + ( valueParts[ 1 ] + 1 ) * valueParts[ 2 ] :
			+valueParts[ 2 ];
		if ( tween ) {
			tween.unit = unit;
			tween.start = initialInUnit;
			tween.end = adjusted;
		}
	}
	return adjusted;
}
var rcheckableType = ( /^(?:checkbox|radio)$/i );

var rtagName = ( /<([\w:-]+)/ );

var rscriptType = ( /^$|\/(?:java|ecma)script/i );



// We have to close these tags to support XHTML (#13200)
var wrapMap = {

	// Support: IE9
	option: [ 1, "<select multiple='multiple'>", "</select>" ],

	// XHTML parsers do not magically insert elements in the
	// same way that tag soup parsers do. So we cannot shorten
	// this by omitting <tbody> or other required elements.
	thead: [ 1, "<table>", "</table>" ],
	col: [ 2, "<table><colgroup>", "</colgroup></table>" ],
	tr: [ 2, "<table><tbody>", "</tbody></table>" ],
	td: [ 3, "<table><tbody><tr>", "</tr></tbody></table>" ],

	_default: [ 0, "", "" ]
};

// Support: IE9
wrapMap.optgroup = wrapMap.option;

wrapMap.tbody = wrapMap.tfoot = wrapMap.colgroup = wrapMap.caption = wrapMap.thead;
wrapMap.th = wrapMap.td;


function getAll( context, tag ) {

	// Support: IE9-11+
	// Use typeof to avoid zero-argument method invocation on host objects (#15151)
	var ret = typeof context.getElementsByTagName !== "undefined" ?
			context.getElementsByTagName( tag || "*" ) :
			typeof context.querySelectorAll !== "undefined" ?
				context.querySelectorAll( tag || "*" ) :
			[];

	return tag === undefined || tag && jQuery.nodeName( context, tag ) ?
		jQuery.merge( [ context ], ret ) :
		ret;
}


// Mark scripts as having already been evaluated
function setGlobalEval( elems, refElements ) {
	var i = 0,
		l = elems.length;

	for ( ; i < l; i++ ) {
		dataPriv.set(
			elems[ i ],
			"globalEval",
			!refElements || dataPriv.get( refElements[ i ], "globalEval" )
		);
	}
}


var rhtml = /<|&#?\w+;/;

function buildFragment( elems, context, scripts, selection, ignored ) {
	var elem, tmp, tag, wrap, contains, j,
		fragment = context.createDocumentFragment(),
		nodes = [],
		i = 0,
		l = elems.length;

	for ( ; i < l; i++ ) {
		elem = elems[ i ];

		if ( elem || elem === 0 ) {

			// Add nodes directly
			if ( jQuery.type( elem ) === "object" ) {

				// Support: Android<4.1, PhantomJS<2
				// push.apply(_, arraylike) throws on ancient WebKit
				jQuery.merge( nodes, elem.nodeType ? [ elem ] : elem );

			// Convert non-html into a text node
			} else if ( !rhtml.test( elem ) ) {
				nodes.push( context.createTextNode( elem ) );

			// Convert html into DOM nodes
			} else {
				tmp = tmp || fragment.appendChild( context.createElement( "div" ) );

				// Deserialize a standard representation
				tag = ( rtagName.exec( elem ) || [ "", "" ] )[ 1 ].toLowerCase();
				wrap = wrapMap[ tag ] || wrapMap._default;
				tmp.innerHTML = wrap[ 1 ] + jQuery.htmlPrefilter( elem ) + wrap[ 2 ];

				// Descend through wrappers to the right content
				j = wrap[ 0 ];
				while ( j-- ) {
					tmp = tmp.lastChild;
				}

				// Support: Android<4.1, PhantomJS<2
				// push.apply(_, arraylike) throws on ancient WebKit
				jQuery.merge( nodes, tmp.childNodes );

				// Remember the top-level container
				tmp = fragment.firstChild;

				// Ensure the created nodes are orphaned (#12392)
				tmp.textContent = "";
			}
		}
	}

	// Remove wrapper from fragment
	fragment.textContent = "";

	i = 0;
	while ( ( elem = nodes[ i++ ] ) ) {

		// Skip elements already in the context collection (trac-4087)
		if ( selection && jQuery.inArray( elem, selection ) > -1 ) {
			if ( ignored ) {
				ignored.push( elem );
			}
			continue;
		}

		contains = jQuery.contains( elem.ownerDocument, elem );

		// Append to fragment
		tmp = getAll( fragment.appendChild( elem ), "script" );

		// Preserve script evaluation history
		if ( contains ) {
			setGlobalEval( tmp );
		}

		// Capture executables
		if ( scripts ) {
			j = 0;
			while ( ( elem = tmp[ j++ ] ) ) {
				if ( rscriptType.test( elem.type || "" ) ) {
					scripts.push( elem );
				}
			}
		}
	}

	return fragment;
}


( function() {
	var fragment = document.createDocumentFragment(),
		div = fragment.appendChild( document.createElement( "div" ) ),
		input = document.createElement( "input" );

	// Support: Android 4.0-4.3, Safari<=5.1
	// Check state lost if the name is set (#11217)
	// Support: Windows Web Apps (WWA)
	// `name` and `type` must use .setAttribute for WWA (#14901)
	input.setAttribute( "type", "radio" );
	input.setAttribute( "checked", "checked" );
	input.setAttribute( "name", "t" );

	div.appendChild( input );

	// Support: Safari<=5.1, Android<4.2
	// Older WebKit doesn't clone checked state correctly in fragments
	support.checkClone = div.cloneNode( true ).cloneNode( true ).lastChild.checked;

	// Support: IE<=11+
	// Make sure textarea (and checkbox) defaultValue is properly cloned
	div.innerHTML = "<textarea>x</textarea>";
	support.noCloneChecked = !!div.cloneNode( true ).lastChild.defaultValue;
} )();


var
	rkeyEvent = /^key/,
	rmouseEvent = /^(?:mouse|pointer|contextmenu|drag|drop)|click/,
	rtypenamespace = /^([^.]*)(?:\.(.+)|)/;

function returnTrue() {
	return true;
}

function returnFalse() {
	return false;
}

// Support: IE9
// See #13393 for more info
function safeActiveElement() {
	try {
		return document.activeElement;
	} catch ( err ) { }
}

function on( elem, types, selector, data, fn, one ) {
	var origFn, type;

	// Types can be a map of types/handlers
	if ( typeof types === "object" ) {

		// ( types-Object, selector, data )
		if ( typeof selector !== "string" ) {

			// ( types-Object, data )
			data = data || selector;
			selector = undefined;
		}
		for ( type in types ) {
			on( elem, type, selector, data, types[ type ], one );
		}
		return elem;
	}

	if ( data == null && fn == null ) {

		// ( types, fn )
		fn = selector;
		data = selector = undefined;
	} else if ( fn == null ) {
		if ( typeof selector === "string" ) {

			// ( types, selector, fn )
			fn = data;
			data = undefined;
		} else {

			// ( types, data, fn )
			fn = data;
			data = selector;
			selector = undefined;
		}
	}
	if ( fn === false ) {
		fn = returnFalse;
	} else if ( !fn ) {
		return elem;
	}

	if ( one === 1 ) {
		origFn = fn;
		fn = function( event ) {

			// Can use an empty set, since event contains the info
			jQuery().off( event );
			return origFn.apply( this, arguments );
		};

		// Use same guid so caller can remove using origFn
		fn.guid = origFn.guid || ( origFn.guid = jQuery.guid++ );
	}
	return elem.each( function() {
		jQuery.event.add( this, types, fn, data, selector );
	} );
}

/*
 * Helper functions for managing events -- not part of the public interface.
 * Props to Dean Edwards' addEvent library for many of the ideas.
 */
jQuery.event = {

	global: {},

	add: function( elem, types, handler, data, selector ) {

		var handleObjIn, eventHandle, tmp,
			events, t, handleObj,
			special, handlers, type, namespaces, origType,
			elemData = dataPriv.get( elem );

		// Don't attach events to noData or text/comment nodes (but allow plain objects)
		if ( !elemData ) {
			return;
		}

		// Caller can pass in an object of custom data in lieu of the handler
		if ( handler.handler ) {
			handleObjIn = handler;
			handler = handleObjIn.handler;
			selector = handleObjIn.selector;
		}

		// Make sure that the handler has a unique ID, used to find/remove it later
		if ( !handler.guid ) {
			handler.guid = jQuery.guid++;
		}

		// Init the element's event structure and main handler, if this is the first
		if ( !( events = elemData.events ) ) {
			events = elemData.events = {};
		}
		if ( !( eventHandle = elemData.handle ) ) {
			eventHandle = elemData.handle = function( e ) {

				// Discard the second event of a jQuery.event.trigger() and
				// when an event is called after a page has unloaded
				return typeof jQuery !== "undefined" && jQuery.event.triggered !== e.type ?
					jQuery.event.dispatch.apply( elem, arguments ) : undefined;
			};
		}

		// Handle multiple events separated by a space
		types = ( types || "" ).match( rnotwhite ) || [ "" ];
		t = types.length;
		while ( t-- ) {
			tmp = rtypenamespace.exec( types[ t ] ) || [];
			type = origType = tmp[ 1 ];
			namespaces = ( tmp[ 2 ] || "" ).split( "." ).sort();

			// There *must* be a type, no attaching namespace-only handlers
			if ( !type ) {
				continue;
			}

			// If event changes its type, use the special event handlers for the changed type
			special = jQuery.event.special[ type ] || {};

			// If selector defined, determine special event api type, otherwise given type
			type = ( selector ? special.delegateType : special.bindType ) || type;

			// Update special based on newly reset type
			special = jQuery.event.special[ type ] || {};

			// handleObj is passed to all event handlers
			handleObj = jQuery.extend( {
				type: type,
				origType: origType,
				data: data,
				handler: handler,
				guid: handler.guid,
				selector: selector,
				needsContext: selector && jQuery.expr.match.needsContext.test( selector ),
				namespace: namespaces.join( "." )
			}, handleObjIn );

			// Init the event handler queue if we're the first
			if ( !( handlers = events[ type ] ) ) {
				handlers = events[ type ] = [];
				handlers.delegateCount = 0;

				// Only use addEventListener if the special events handler returns false
				if ( !special.setup ||
					special.setup.call( elem, data, namespaces, eventHandle ) === false ) {

					if ( elem.addEventListener ) {
						elem.addEventListener( type, eventHandle );
					}
				}
			}

			if ( special.add ) {
				special.add.call( elem, handleObj );

				if ( !handleObj.handler.guid ) {
					handleObj.handler.guid = handler.guid;
				}
			}

			// Add to the element's handler list, delegates in front
			if ( selector ) {
				handlers.splice( handlers.delegateCount++, 0, handleObj );
			} else {
				handlers.push( handleObj );
			}

			// Keep track of which events have ever been used, for event optimization
			jQuery.event.global[ type ] = true;
		}

	},

	// Detach an event or set of events from an element
	remove: function( elem, types, handler, selector, mappedTypes ) {

		var j, origCount, tmp,
			events, t, handleObj,
			special, handlers, type, namespaces, origType,
			elemData = dataPriv.hasData( elem ) && dataPriv.get( elem );

		if ( !elemData || !( events = elemData.events ) ) {
			return;
		}

		// Once for each type.namespace in types; type may be omitted
		types = ( types || "" ).match( rnotwhite ) || [ "" ];
		t = types.length;
		while ( t-- ) {
			tmp = rtypenamespace.exec( types[ t ] ) || [];
			type = origType = tmp[ 1 ];
			namespaces = ( tmp[ 2 ] || "" ).split( "." ).sort();

			// Unbind all events (on this namespace, if provided) for the element
			if ( !type ) {
				for ( type in events ) {
					jQuery.event.remove( elem, type + types[ t ], handler, selector, true );
				}
				continue;
			}

			special = jQuery.event.special[ type ] || {};
			type = ( selector ? special.delegateType : special.bindType ) || type;
			handlers = events[ type ] || [];
			tmp = tmp[ 2 ] &&
				new RegExp( "(^|\\.)" + namespaces.join( "\\.(?:.*\\.|)" ) + "(\\.|$)" );

			// Remove matching events
			origCount = j = handlers.length;
			while ( j-- ) {
				handleObj = handlers[ j ];

				if ( ( mappedTypes || origType === handleObj.origType ) &&
					( !handler || handler.guid === handleObj.guid ) &&
					( !tmp || tmp.test( handleObj.namespace ) ) &&
					( !selector || selector === handleObj.selector ||
						selector === "**" && handleObj.selector ) ) {
					handlers.splice( j, 1 );

					if ( handleObj.selector ) {
						handlers.delegateCount--;
					}
					if ( special.remove ) {
						special.remove.call( elem, handleObj );
					}
				}
			}

			// Remove generic event handler if we removed something and no more handlers exist
			// (avoids potential for endless recursion during removal of special event handlers)
			if ( origCount && !handlers.length ) {
				if ( !special.teardown ||
					special.teardown.call( elem, namespaces, elemData.handle ) === false ) {

					jQuery.removeEvent( elem, type, elemData.handle );
				}

				delete events[ type ];
			}
		}

		// Remove data and the expando if it's no longer used
		if ( jQuery.isEmptyObject( events ) ) {
			dataPriv.remove( elem, "handle events" );
		}
	},

	dispatch: function( event ) {

		// Make a writable jQuery.Event from the native event object
		event = jQuery.event.fix( event );

		var i, j, ret, matched, handleObj,
			handlerQueue = [],
			args = slice.call( arguments ),
			handlers = ( dataPriv.get( this, "events" ) || {} )[ event.type ] || [],
			special = jQuery.event.special[ event.type ] || {};

		// Use the fix-ed jQuery.Event rather than the (read-only) native event
		args[ 0 ] = event;
		event.delegateTarget = this;

		// Call the preDispatch hook for the mapped type, and let it bail if desired
		if ( special.preDispatch && special.preDispatch.call( this, event ) === false ) {
			return;
		}

		// Determine handlers
		handlerQueue = jQuery.event.handlers.call( this, event, handlers );

		// Run delegates first; they may want to stop propagation beneath us
		i = 0;
		while ( ( matched = handlerQueue[ i++ ] ) && !event.isPropagationStopped() ) {
			event.currentTarget = matched.elem;

			j = 0;
			while ( ( handleObj = matched.handlers[ j++ ] ) &&
				!event.isImmediatePropagationStopped() ) {

				// Triggered event must either 1) have no namespace, or 2) have namespace(s)
				// a subset or equal to those in the bound event (both can have no namespace).
				if ( !event.rnamespace || event.rnamespace.test( handleObj.namespace ) ) {

					event.handleObj = handleObj;
					event.data = handleObj.data;

					ret = ( ( jQuery.event.special[ handleObj.origType ] || {} ).handle ||
						handleObj.handler ).apply( matched.elem, args );

					if ( ret !== undefined ) {
						if ( ( event.result = ret ) === false ) {
							event.preventDefault();
							event.stopPropagation();
						}
					}
				}
			}
		}

		// Call the postDispatch hook for the mapped type
		if ( special.postDispatch ) {
			special.postDispatch.call( this, event );
		}

		return event.result;
	},

	handlers: function( event, handlers ) {
		var i, matches, sel, handleObj,
			handlerQueue = [],
			delegateCount = handlers.delegateCount,
			cur = event.target;

		// Support (at least): Chrome, IE9
		// Find delegate handlers
		// Black-hole SVG <use> instance trees (#13180)
		//
		// Support: Firefox<=42+
		// Avoid non-left-click in FF but don't block IE radio events (#3861, gh-2343)
		if ( delegateCount && cur.nodeType &&
			( event.type !== "click" || isNaN( event.button ) || event.button < 1 ) ) {

			for ( ; cur !== this; cur = cur.parentNode || this ) {

				// Don't check non-elements (#13208)
				// Don't process clicks on disabled elements (#6911, #8165, #11382, #11764)
				if ( cur.nodeType === 1 && ( cur.disabled !== true || event.type !== "click" ) ) {
					matches = [];
					for ( i = 0; i < delegateCount; i++ ) {
						handleObj = handlers[ i ];

						// Don't conflict with Object.prototype properties (#13203)
						sel = handleObj.selector + " ";

						if ( matches[ sel ] === undefined ) {
							matches[ sel ] = handleObj.needsContext ?
								jQuery( sel, this ).index( cur ) > -1 :
								jQuery.find( sel, this, null, [ cur ] ).length;
						}
						if ( matches[ sel ] ) {
							matches.push( handleObj );
						}
					}
					if ( matches.length ) {
						handlerQueue.push( { elem: cur, handlers: matches } );
					}
				}
			}
		}

		// Add the remaining (directly-bound) handlers
		if ( delegateCount < handlers.length ) {
			handlerQueue.push( { elem: this, handlers: handlers.slice( delegateCount ) } );
		}

		return handlerQueue;
	},

	// Includes some event props shared by KeyEvent and MouseEvent
	props: ( "altKey bubbles cancelable ctrlKey currentTarget detail eventPhase " +
		"metaKey relatedTarget shiftKey target timeStamp view which" ).split( " " ),

	fixHooks: {},

	keyHooks: {
		props: "char charCode key keyCode".split( " " ),
		filter: function( event, original ) {

			// Add which for key events
			if ( event.which == null ) {
				event.which = original.charCode != null ? original.charCode : original.keyCode;
			}

			return event;
		}
	},

	mouseHooks: {
		props: ( "button buttons clientX clientY offsetX offsetY pageX pageY " +
			"screenX screenY toElement" ).split( " " ),
		filter: function( event, original ) {
			var eventDoc, doc, body,
				button = original.button;

			// Calculate pageX/Y if missing and clientX/Y available
			if ( event.pageX == null && original.clientX != null ) {
				eventDoc = event.target.ownerDocument || document;
				doc = eventDoc.documentElement;
				body = eventDoc.body;

				event.pageX = original.clientX +
					( doc && doc.scrollLeft || body && body.scrollLeft || 0 ) -
					( doc && doc.clientLeft || body && body.clientLeft || 0 );
				event.pageY = original.clientY +
					( doc && doc.scrollTop  || body && body.scrollTop  || 0 ) -
					( doc && doc.clientTop  || body && body.clientTop  || 0 );
			}

			// Add which for click: 1 === left; 2 === middle; 3 === right
			// Note: button is not normalized, so don't use it
			if ( !event.which && button !== undefined ) {
				event.which = ( button & 1 ? 1 : ( button & 2 ? 3 : ( button & 4 ? 2 : 0 ) ) );
			}

			return event;
		}
	},

	fix: function( event ) {
		if ( event[ jQuery.expando ] ) {
			return event;
		}

		// Create a writable copy of the event object and normalize some properties
		var i, prop, copy,
			type = event.type,
			originalEvent = event,
			fixHook = this.fixHooks[ type ];

		if ( !fixHook ) {
			this.fixHooks[ type ] = fixHook =
				rmouseEvent.test( type ) ? this.mouseHooks :
				rkeyEvent.test( type ) ? this.keyHooks :
				{};
		}
		copy = fixHook.props ? this.props.concat( fixHook.props ) : this.props;

		event = new jQuery.Event( originalEvent );

		i = copy.length;
		while ( i-- ) {
			prop = copy[ i ];
			event[ prop ] = originalEvent[ prop ];
		}

		// Support: Cordova 2.5 (WebKit) (#13255)
		// All events should have a target; Cordova deviceready doesn't
		if ( !event.target ) {
			event.target = document;
		}

		// Support: Safari 6.0+, Chrome<28
		// Target should not be a text node (#504, #13143)
		if ( event.target.nodeType === 3 ) {
			event.target = event.target.parentNode;
		}

		return fixHook.filter ? fixHook.filter( event, originalEvent ) : event;
	},

	special: {
		load: {

			// Prevent triggered image.load events from bubbling to window.load
			noBubble: true
		},
		focus: {

			// Fire native event if possible so blur/focus sequence is correct
			trigger: function() {
				if ( this !== safeActiveElement() && this.focus ) {
					this.focus();
					return false;
				}
			},
			delegateType: "focusin"
		},
		blur: {
			trigger: function() {
				if ( this === safeActiveElement() && this.blur ) {
					this.blur();
					return false;
				}
			},
			delegateType: "focusout"
		},
		click: {

			// For checkbox, fire native event so checked state will be right
			trigger: function() {
				if ( this.type === "checkbox" && this.click && jQuery.nodeName( this, "input" ) ) {
					this.click();
					return false;
				}
			},

			// For cross-browser consistency, don't fire native .click() on links
			_default: function( event ) {
				return jQuery.nodeName( event.target, "a" );
			}
		},

		beforeunload: {
			postDispatch: function( event ) {

				// Support: Firefox 20+
				// Firefox doesn't alert if the returnValue field is not set.
				if ( event.result !== undefined && event.originalEvent ) {
					event.originalEvent.returnValue = event.result;
				}
			}
		}
	}
};

jQuery.removeEvent = function( elem, type, handle ) {

	// This "if" is needed for plain objects
	if ( elem.removeEventListener ) {
		elem.removeEventListener( type, handle );
	}
};

jQuery.Event = function( src, props ) {

	// Allow instantiation without the 'new' keyword
	if ( !( this instanceof jQuery.Event ) ) {
		return new jQuery.Event( src, props );
	}

	// Event object
	if ( src && src.type ) {
		this.originalEvent = src;
		this.type = src.type;

		// Events bubbling up the document may have been marked as prevented
		// by a handler lower down the tree; reflect the correct value.
		this.isDefaultPrevented = src.defaultPrevented ||
				src.defaultPrevented === undefined &&

				// Support: Android<4.0
				src.returnValue === false ?
			returnTrue :
			returnFalse;

	// Event type
	} else {
		this.type = src;
	}

	// Put explicitly provided properties onto the event object
	if ( props ) {
		jQuery.extend( this, props );
	}

	// Create a timestamp if incoming event doesn't have one
	this.timeStamp = src && src.timeStamp || jQuery.now();

	// Mark it as fixed
	this[ jQuery.expando ] = true;
};

// jQuery.Event is based on DOM3 Events as specified by the ECMAScript Language Binding
// http://www.w3.org/TR/2003/WD-DOM-Level-3-Events-20030331/ecma-script-binding.html
jQuery.Event.prototype = {
	constructor: jQuery.Event,
	isDefaultPrevented: returnFalse,
	isPropagationStopped: returnFalse,
	isImmediatePropagationStopped: returnFalse,

	preventDefault: function() {
		var e = this.originalEvent;

		this.isDefaultPrevented = returnTrue;

		if ( e ) {
			e.preventDefault();
		}
	},
	stopPropagation: function() {
		var e = this.originalEvent;

		this.isPropagationStopped = returnTrue;

		if ( e ) {
			e.stopPropagation();
		}
	},
	stopImmediatePropagation: function() {
		var e = this.originalEvent;

		this.isImmediatePropagationStopped = returnTrue;

		if ( e ) {
			e.stopImmediatePropagation();
		}

		this.stopPropagation();
	}
};

// Create mouseenter/leave events using mouseover/out and event-time checks
// so that event delegation works in jQuery.
// Do the same for pointerenter/pointerleave and pointerover/pointerout
//
// Support: Safari 7 only
// Safari sends mouseenter too often; see:
// https://code.google.com/p/chromium/issues/detail?id=470258
// for the description of the bug (it existed in older Chrome versions as well).
jQuery.each( {
	mouseenter: "mouseover",
	mouseleave: "mouseout",
	pointerenter: "pointerover",
	pointerleave: "pointerout"
}, function( orig, fix ) {
	jQuery.event.special[ orig ] = {
		delegateType: fix,
		bindType: fix,

		handle: function( event ) {
			var ret,
				target = this,
				related = event.relatedTarget,
				handleObj = event.handleObj;

			// For mouseenter/leave call the handler if related is outside the target.
			// NB: No relatedTarget if the mouse left/entered the browser window
			if ( !related || ( related !== target && !jQuery.contains( target, related ) ) ) {
				event.type = handleObj.origType;
				ret = handleObj.handler.apply( this, arguments );
				event.type = fix;
			}
			return ret;
		}
	};
} );

jQuery.fn.extend( {
	on: function( types, selector, data, fn ) {
		return on( this, types, selector, data, fn );
	},
	one: function( types, selector, data, fn ) {
		return on( this, types, selector, data, fn, 1 );
	},
	off: function( types, selector, fn ) {
		var handleObj, type;
		if ( types && types.preventDefault && types.handleObj ) {

			// ( event )  dispatched jQuery.Event
			handleObj = types.handleObj;
			jQuery( types.delegateTarget ).off(
				handleObj.namespace ?
					handleObj.origType + "." + handleObj.namespace :
					handleObj.origType,
				handleObj.selector,
				handleObj.handler
			);
			return this;
		}
		if ( typeof types === "object" ) {

			// ( types-object [, selector] )
			for ( type in types ) {
				this.off( type, selector, types[ type ] );
			}
			return this;
		}
		if ( selector === false || typeof selector === "function" ) {

			// ( types [, fn] )
			fn = selector;
			selector = undefined;
		}
		if ( fn === false ) {
			fn = returnFalse;
		}
		return this.each( function() {
			jQuery.event.remove( this, types, fn, selector );
		} );
	}
} );


var
	rxhtmlTag = /<(?!area|br|col|embed|hr|img|input|link|meta|param)(([\w:-]+)[^>]*)\/>/gi,

	// Support: IE 10-11, Edge 10240+
	// In IE/Edge using regex groups here causes severe slowdowns.
	// See https://connect.microsoft.com/IE/feedback/details/1736512/
	rnoInnerhtml = /<script|<style|<link/i,

	// checked="checked" or checked
	rchecked = /checked\s*(?:[^=]|=\s*.checked.)/i,
	rscriptTypeMasked = /^true\/(.*)/,
	rcleanScript = /^\s*<!(?:\[CDATA\[|--)|(?:\]\]|--)>\s*$/g;

// Manipulating tables requires a tbody
function manipulationTarget( elem, content ) {
	return jQuery.nodeName( elem, "table" ) &&
		jQuery.nodeName( content.nodeType !== 11 ? content : content.firstChild, "tr" ) ?

		elem.getElementsByTagName( "tbody" )[ 0 ] ||
			elem.appendChild( elem.ownerDocument.createElement( "tbody" ) ) :
		elem;
}

// Replace/restore the type attribute of script elements for safe DOM manipulation
function disableScript( elem ) {
	elem.type = ( elem.getAttribute( "type" ) !== null ) + "/" + elem.type;
	return elem;
}
function restoreScript( elem ) {
	var match = rscriptTypeMasked.exec( elem.type );

	if ( match ) {
		elem.type = match[ 1 ];
	} else {
		elem.removeAttribute( "type" );
	}

	return elem;
}

function cloneCopyEvent( src, dest ) {
	var i, l, type, pdataOld, pdataCur, udataOld, udataCur, events;

	if ( dest.nodeType !== 1 ) {
		return;
	}

	// 1. Copy private data: events, handlers, etc.
	if ( dataPriv.hasData( src ) ) {
		pdataOld = dataPriv.access( src );
		pdataCur = dataPriv.set( dest, pdataOld );
		events = pdataOld.events;

		if ( events ) {
			delete pdataCur.handle;
			pdataCur.events = {};

			for ( type in events ) {
				for ( i = 0, l = events[ type ].length; i < l; i++ ) {
					jQuery.event.add( dest, type, events[ type ][ i ] );
				}
			}
		}
	}

	// 2. Copy user data
	if ( dataUser.hasData( src ) ) {
		udataOld = dataUser.access( src );
		udataCur = jQuery.extend( {}, udataOld );

		dataUser.set( dest, udataCur );
	}
}

// Fix IE bugs, see support tests
function fixInput( src, dest ) {
	var nodeName = dest.nodeName.toLowerCase();

	// Fails to persist the checked state of a cloned checkbox or radio button.
	if ( nodeName === "input" && rcheckableType.test( src.type ) ) {
		dest.checked = src.checked;

	// Fails to return the selected option to the default selected state when cloning options
	} else if ( nodeName === "input" || nodeName === "textarea" ) {
		dest.defaultValue = src.defaultValue;
	}
}

function domManip( collection, args, callback, ignored ) {

	// Flatten any nested arrays
	args = concat.apply( [], args );

	var fragment, first, scripts, hasScripts, node, doc,
		i = 0,
		l = collection.length,
		iNoClone = l - 1,
		value = args[ 0 ],
		isFunction = jQuery.isFunction( value );

	// We can't cloneNode fragments that contain checked, in WebKit
	if ( isFunction ||
			( l > 1 && typeof value === "string" &&
				!support.checkClone && rchecked.test( value ) ) ) {
		return collection.each( function( index ) {
			var self = collection.eq( index );
			if ( isFunction ) {
				args[ 0 ] = value.call( this, index, self.html() );
			}
			domManip( self, args, callback, ignored );
		} );
	}

	if ( l ) {
		fragment = buildFragment( args, collection[ 0 ].ownerDocument, false, collection, ignored );
		first = fragment.firstChild;

		if ( fragment.childNodes.length === 1 ) {
			fragment = first;
		}

		// Require either new content or an interest in ignored elements to invoke the callback
		if ( first || ignored ) {
			scripts = jQuery.map( getAll( fragment, "script" ), disableScript );
			hasScripts = scripts.length;

			// Use the original fragment for the last item
			// instead of the first because it can end up
			// being emptied incorrectly in certain situations (#8070).
			for ( ; i < l; i++ ) {
				node = fragment;

				if ( i !== iNoClone ) {
					node = jQuery.clone( node, true, true );

					// Keep references to cloned scripts for later restoration
					if ( hasScripts ) {

						// Support: Android<4.1, PhantomJS<2
						// push.apply(_, arraylike) throws on ancient WebKit
						jQuery.merge( scripts, getAll( node, "script" ) );
					}
				}

				callback.call( collection[ i ], node, i );
			}

			if ( hasScripts ) {
				doc = scripts[ scripts.length - 1 ].ownerDocument;

				// Reenable scripts
				jQuery.map( scripts, restoreScript );

				// Evaluate executable scripts on first document insertion
				for ( i = 0; i < hasScripts; i++ ) {
					node = scripts[ i ];
					if ( rscriptType.test( node.type || "" ) &&
						!dataPriv.access( node, "globalEval" ) &&
						jQuery.contains( doc, node ) ) {

						if ( node.src ) {

							// Optional AJAX dependency, but won't run scripts if not present
							if ( jQuery._evalUrl ) {
								jQuery._evalUrl( node.src );
							}
						} else {
							jQuery.globalEval( node.textContent.replace( rcleanScript, "" ) );
						}
					}
				}
			}
		}
	}

	return collection;
}

function remove( elem, selector, keepData ) {
	var node,
		nodes = selector ? jQuery.filter( selector, elem ) : elem,
		i = 0;

	for ( ; ( node = nodes[ i ] ) != null; i++ ) {
		if ( !keepData && node.nodeType === 1 ) {
			jQuery.cleanData( getAll( node ) );
		}

		if ( node.parentNode ) {
			if ( keepData && jQuery.contains( node.ownerDocument, node ) ) {
				setGlobalEval( getAll( node, "script" ) );
			}
			node.parentNode.removeChild( node );
		}
	}

	return elem;
}

jQuery.extend( {
	htmlPrefilter: function( html ) {
		return html.replace( rxhtmlTag, "<$1></$2>" );
	},

	clone: function( elem, dataAndEvents, deepDataAndEvents ) {
		var i, l, srcElements, destElements,
			clone = elem.cloneNode( true ),
			inPage = jQuery.contains( elem.ownerDocument, elem );

		// Fix IE cloning issues
		if ( !support.noCloneChecked && ( elem.nodeType === 1 || elem.nodeType === 11 ) &&
				!jQuery.isXMLDoc( elem ) ) {

			// We eschew Sizzle here for performance reasons: http://jsperf.com/getall-vs-sizzle/2
			destElements = getAll( clone );
			srcElements = getAll( elem );

			for ( i = 0, l = srcElements.length; i < l; i++ ) {
				fixInput( srcElements[ i ], destElements[ i ] );
			}
		}

		// Copy the events from the original to the clone
		if ( dataAndEvents ) {
			if ( deepDataAndEvents ) {
				srcElements = srcElements || getAll( elem );
				destElements = destElements || getAll( clone );

				for ( i = 0, l = srcElements.length; i < l; i++ ) {
					cloneCopyEvent( srcElements[ i ], destElements[ i ] );
				}
			} else {
				cloneCopyEvent( elem, clone );
			}
		}

		// Preserve script evaluation history
		destElements = getAll( clone, "script" );
		if ( destElements.length > 0 ) {
			setGlobalEval( destElements, !inPage && getAll( elem, "script" ) );
		}

		// Return the cloned set
		return clone;
	},

	cleanData: function( elems ) {
		var data, elem, type,
			special = jQuery.event.special,
			i = 0;

		for ( ; ( elem = elems[ i ] ) !== undefined; i++ ) {
			if ( acceptData( elem ) ) {
				if ( ( data = elem[ dataPriv.expando ] ) ) {
					if ( data.events ) {
						for ( type in data.events ) {
							if ( special[ type ] ) {
								jQuery.event.remove( elem, type );

							// This is a shortcut to avoid jQuery.event.remove's overhead
							} else {
								jQuery.removeEvent( elem, type, data.handle );
							}
						}
					}

					// Support: Chrome <= 35-45+
					// Assign undefined instead of using delete, see Data#remove
					elem[ dataPriv.expando ] = undefined;
				}
				if ( elem[ dataUser.expando ] ) {

					// Support: Chrome <= 35-45+
					// Assign undefined instead of using delete, see Data#remove
					elem[ dataUser.expando ] = undefined;
				}
			}
		}
	}
} );

jQuery.fn.extend( {

	// Keep domManip exposed until 3.0 (gh-2225)
	domManip: domManip,

	detach: function( selector ) {
		return remove( this, selector, true );
	},

	remove: function( selector ) {
		return remove( this, selector );
	},

	text: function( value ) {
		return access( this, function( value ) {
			return value === undefined ?
				jQuery.text( this ) :
				this.empty().each( function() {
					if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
						this.textContent = value;
					}
				} );
		}, null, value, arguments.length );
	},

	append: function() {
		return domManip( this, arguments, function( elem ) {
			if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
				var target = manipulationTarget( this, elem );
				target.appendChild( elem );
			}
		} );
	},

	prepend: function() {
		return domManip( this, arguments, function( elem ) {
			if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
				var target = manipulationTarget( this, elem );
				target.insertBefore( elem, target.firstChild );
			}
		} );
	},

	before: function() {
		return domManip( this, arguments, function( elem ) {
			if ( this.parentNode ) {
				this.parentNode.insertBefore( elem, this );
			}
		} );
	},

	after: function() {
		return domManip( this, arguments, function( elem ) {
			if ( this.parentNode ) {
				this.parentNode.insertBefore( elem, this.nextSibling );
			}
		} );
	},

	empty: function() {
		var elem,
			i = 0;

		for ( ; ( elem = this[ i ] ) != null; i++ ) {
			if ( elem.nodeType === 1 ) {

				// Prevent memory leaks
				jQuery.cleanData( getAll( elem, false ) );

				// Remove any remaining nodes
				elem.textContent = "";
			}
		}

		return this;
	},

	clone: function( dataAndEvents, deepDataAndEvents ) {
		dataAndEvents = dataAndEvents == null ? false : dataAndEvents;
		deepDataAndEvents = deepDataAndEvents == null ? dataAndEvents : deepDataAndEvents;

		return this.map( function() {
			return jQuery.clone( this, dataAndEvents, deepDataAndEvents );
		} );
	},

	html: function( value ) {
		return access( this, function( value ) {
			var elem = this[ 0 ] || {},
				i = 0,
				l = this.length;

			if ( value === undefined && elem.nodeType === 1 ) {
				return elem.innerHTML;
			}

			// See if we can take a shortcut and just use innerHTML
			if ( typeof value === "string" && !rnoInnerhtml.test( value ) &&
				!wrapMap[ ( rtagName.exec( value ) || [ "", "" ] )[ 1 ].toLowerCase() ] ) {

				value = jQuery.htmlPrefilter( value );

				try {
					for ( ; i < l; i++ ) {
						elem = this[ i ] || {};

						// Remove element nodes and prevent memory leaks
						if ( elem.nodeType === 1 ) {
							jQuery.cleanData( getAll( elem, false ) );
							elem.innerHTML = value;
						}
					}

					elem = 0;

				// If using innerHTML throws an exception, use the fallback method
				} catch ( e ) {}
			}

			if ( elem ) {
				this.empty().append( value );
			}
		}, null, value, arguments.length );
	},

	replaceWith: function() {
		var ignored = [];

		// Make the changes, replacing each non-ignored context element with the new content
		return domManip( this, arguments, function( elem ) {
			var parent = this.parentNode;

			if ( jQuery.inArray( this, ignored ) < 0 ) {
				jQuery.cleanData( getAll( this ) );
				if ( parent ) {
					parent.replaceChild( elem, this );
				}
			}

		// Force callback invocation
		}, ignored );
	}
} );

jQuery.each( {
	appendTo: "append",
	prependTo: "prepend",
	insertBefore: "before",
	insertAfter: "after",
	replaceAll: "replaceWith"
}, function( name, original ) {
	jQuery.fn[ name ] = function( selector ) {
		var elems,
			ret = [],
			insert = jQuery( selector ),
			last = insert.length - 1,
			i = 0;

		for ( ; i <= last; i++ ) {
			elems = i === last ? this : this.clone( true );
			jQuery( insert[ i ] )[ original ]( elems );

			// Support: QtWebKit
			// .get() because push.apply(_, arraylike) throws
			push.apply( ret, elems.get() );
		}

		return this.pushStack( ret );
	};
} );


var iframe,
	elemdisplay = {

		// Support: Firefox
		// We have to pre-define these values for FF (#10227)
		HTML: "block",
		BODY: "block"
	};

/**
 * Retrieve the actual display of a element
 * @param {String} name nodeName of the element
 * @param {Object} doc Document object
 */

// Called only from within defaultDisplay
function actualDisplay( name, doc ) {
	var elem = jQuery( doc.createElement( name ) ).appendTo( doc.body ),

		display = jQuery.css( elem[ 0 ], "display" );

	// We don't have any data stored on the element,
	// so use "detach" method as fast way to get rid of the element
	elem.detach();

	return display;
}

/**
 * Try to determine the default display value of an element
 * @param {String} nodeName
 */
function defaultDisplay( nodeName ) {
	var doc = document,
		display = elemdisplay[ nodeName ];

	if ( !display ) {
		display = actualDisplay( nodeName, doc );

		// If the simple way fails, read from inside an iframe
		if ( display === "none" || !display ) {

			// Use the already-created iframe if possible
			iframe = ( iframe || jQuery( "<iframe frameborder='0' width='0' height='0'/>" ) )
				.appendTo( doc.documentElement );

			// Always write a new HTML skeleton so Webkit and Firefox don't choke on reuse
			doc = iframe[ 0 ].contentDocument;

			// Support: IE
			doc.write();
			doc.close();

			display = actualDisplay( nodeName, doc );
			iframe.detach();
		}

		// Store the correct default display
		elemdisplay[ nodeName ] = display;
	}

	return display;
}
var rmargin = ( /^margin/ );

var rnumnonpx = new RegExp( "^(" + pnum + ")(?!px)[a-z%]+$", "i" );

var getStyles = function( elem ) {

		// Support: IE<=11+, Firefox<=30+ (#15098, #14150)
		// IE throws on elements created in popups
		// FF meanwhile throws on frame elements through "defaultView.getComputedStyle"
		var view = elem.ownerDocument.defaultView;

		if ( !view || !view.opener ) {
			view = window;
		}

		return view.getComputedStyle( elem );
	};

var swap = function( elem, options, callback, args ) {
	var ret, name,
		old = {};

	// Remember the old values, and insert the new ones
	for ( name in options ) {
		old[ name ] = elem.style[ name ];
		elem.style[ name ] = options[ name ];
	}

	ret = callback.apply( elem, args || [] );

	// Revert the old values
	for ( name in options ) {
		elem.style[ name ] = old[ name ];
	}

	return ret;
};


var documentElement = document.documentElement;



( function() {
	var pixelPositionVal, boxSizingReliableVal, pixelMarginRightVal, reliableMarginLeftVal,
		container = document.createElement( "div" ),
		div = document.createElement( "div" );

	// Finish early in limited (non-browser) environments
	if ( !div.style ) {
		return;
	}

	// Support: IE9-11+
	// Style of cloned element affects source element cloned (#8908)
	div.style.backgroundClip = "content-box";
	div.cloneNode( true ).style.backgroundClip = "";
	support.clearCloneStyle = div.style.backgroundClip === "content-box";

	container.style.cssText = "border:0;width:8px;height:0;top:0;left:-9999px;" +
		"padding:0;margin-top:1px;position:absolute";
	container.appendChild( div );

	// Executing both pixelPosition & boxSizingReliable tests require only one layout
	// so they're executed at the same time to save the second computation.
	function computeStyleTests() {
		div.style.cssText =

			// Support: Firefox<29, Android 2.3
			// Vendor-prefix box-sizing
			"-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box;" +
			"position:relative;display:block;" +
			"margin:auto;border:1px;padding:1px;" +
			"top:1%;width:50%";
		div.innerHTML = "";
		documentElement.appendChild( container );

		var divStyle = window.getComputedStyle( div );
		pixelPositionVal = divStyle.top !== "1%";
		reliableMarginLeftVal = divStyle.marginLeft === "2px";
		boxSizingReliableVal = divStyle.width === "4px";

		// Support: Android 4.0 - 4.3 only
		// Some styles come back with percentage values, even though they shouldn't
		div.style.marginRight = "50%";
		pixelMarginRightVal = divStyle.marginRight === "4px";

		documentElement.removeChild( container );
	}

	jQuery.extend( support, {
		pixelPosition: function() {

			// This test is executed only once but we still do memoizing
			// since we can use the boxSizingReliable pre-computing.
			// No need to check if the test was already performed, though.
			computeStyleTests();
			return pixelPositionVal;
		},
		boxSizingReliable: function() {
			if ( boxSizingReliableVal == null ) {
				computeStyleTests();
			}
			return boxSizingReliableVal;
		},
		pixelMarginRight: function() {

			// Support: Android 4.0-4.3
			// We're checking for boxSizingReliableVal here instead of pixelMarginRightVal
			// since that compresses better and they're computed together anyway.
			if ( boxSizingReliableVal == null ) {
				computeStyleTests();
			}
			return pixelMarginRightVal;
		},
		reliableMarginLeft: function() {

			// Support: IE <=8 only, Android 4.0 - 4.3 only, Firefox <=3 - 37
			if ( boxSizingReliableVal == null ) {
				computeStyleTests();
			}
			return reliableMarginLeftVal;
		},
		reliableMarginRight: function() {

			// Support: Android 2.3
			// Check if div with explicit width and no margin-right incorrectly
			// gets computed margin-right based on width of container. (#3333)
			// WebKit Bug 13343 - getComputedStyle returns wrong value for margin-right
			// This support function is only executed once so no memoizing is needed.
			var ret,
				marginDiv = div.appendChild( document.createElement( "div" ) );

			// Reset CSS: box-sizing; display; margin; border; padding
			marginDiv.style.cssText = div.style.cssText =

				// Support: Android 2.3
				// Vendor-prefix box-sizing
				"-webkit-box-sizing:content-box;box-sizing:content-box;" +
				"display:block;margin:0;border:0;padding:0";
			marginDiv.style.marginRight = marginDiv.style.width = "0";
			div.style.width = "1px";
			documentElement.appendChild( container );

			ret = !parseFloat( window.getComputedStyle( marginDiv ).marginRight );

			documentElement.removeChild( container );
			div.removeChild( marginDiv );

			return ret;
		}
	} );
} )();


function curCSS( elem, name, computed ) {
	var width, minWidth, maxWidth, ret,
		style = elem.style;

	computed = computed || getStyles( elem );
	ret = computed ? computed.getPropertyValue( name ) || computed[ name ] : undefined;

	// Support: Opera 12.1x only
	// Fall back to style even without computed
	// computed is undefined for elems on document fragments
	if ( ( ret === "" || ret === undefined ) && !jQuery.contains( elem.ownerDocument, elem ) ) {
		ret = jQuery.style( elem, name );
	}

	// Support: IE9
	// getPropertyValue is only needed for .css('filter') (#12537)
	if ( computed ) {

		// A tribute to the "awesome hack by Dean Edwards"
		// Android Browser returns percentage for some values,
		// but width seems to be reliably pixels.
		// This is against the CSSOM draft spec:
		// http://dev.w3.org/csswg/cssom/#resolved-values
		if ( !support.pixelMarginRight() && rnumnonpx.test( ret ) && rmargin.test( name ) ) {

			// Remember the original values
			width = style.width;
			minWidth = style.minWidth;
			maxWidth = style.maxWidth;

			// Put in the new values to get a computed value out
			style.minWidth = style.maxWidth = style.width = ret;
			ret = computed.width;

			// Revert the changed values
			style.width = width;
			style.minWidth = minWidth;
			style.maxWidth = maxWidth;
		}
	}

	return ret !== undefined ?

		// Support: IE9-11+
		// IE returns zIndex value as an integer.
		ret + "" :
		ret;
}


function addGetHookIf( conditionFn, hookFn ) {

	// Define the hook, we'll check on the first run if it's really needed.
	return {
		get: function() {
			if ( conditionFn() ) {

				// Hook not needed (or it's not possible to use it due
				// to missing dependency), remove it.
				delete this.get;
				return;
			}

			// Hook needed; redefine it so that the support test is not executed again.
			return ( this.get = hookFn ).apply( this, arguments );
		}
	};
}


var

	// Swappable if display is none or starts with table
	// except "table", "table-cell", or "table-caption"
	// See here for display values: https://developer.mozilla.org/en-US/docs/CSS/display
	rdisplayswap = /^(none|table(?!-c[ea]).+)/,

	cssShow = { position: "absolute", visibility: "hidden", display: "block" },
	cssNormalTransform = {
		letterSpacing: "0",
		fontWeight: "400"
	},

	cssPrefixes = [ "Webkit", "O", "Moz", "ms" ],
	emptyStyle = document.createElement( "div" ).style;

// Return a css property mapped to a potentially vendor prefixed property
function vendorPropName( name ) {

	// Shortcut for names that are not vendor prefixed
	if ( name in emptyStyle ) {
		return name;
	}

	// Check for vendor prefixed names
	var capName = name[ 0 ].toUpperCase() + name.slice( 1 ),
		i = cssPrefixes.length;

	while ( i-- ) {
		name = cssPrefixes[ i ] + capName;
		if ( name in emptyStyle ) {
			return name;
		}
	}
}

function setPositiveNumber( elem, value, subtract ) {

	// Any relative (+/-) values have already been
	// normalized at this point
	var matches = rcssNum.exec( value );
	return matches ?

		// Guard against undefined "subtract", e.g., when used as in cssHooks
		Math.max( 0, matches[ 2 ] - ( subtract || 0 ) ) + ( matches[ 3 ] || "px" ) :
		value;
}

function augmentWidthOrHeight( elem, name, extra, isBorderBox, styles ) {
	var i = extra === ( isBorderBox ? "border" : "content" ) ?

		// If we already have the right measurement, avoid augmentation
		4 :

		// Otherwise initialize for horizontal or vertical properties
		name === "width" ? 1 : 0,

		val = 0;

	for ( ; i < 4; i += 2 ) {

		// Both box models exclude margin, so add it if we want it
		if ( extra === "margin" ) {
			val += jQuery.css( elem, extra + cssExpand[ i ], true, styles );
		}

		if ( isBorderBox ) {

			// border-box includes padding, so remove it if we want content
			if ( extra === "content" ) {
				val -= jQuery.css( elem, "padding" + cssExpand[ i ], true, styles );
			}

			// At this point, extra isn't border nor margin, so remove border
			if ( extra !== "margin" ) {
				val -= jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles );
			}
		} else {

			// At this point, extra isn't content, so add padding
			val += jQuery.css( elem, "padding" + cssExpand[ i ], true, styles );

			// At this point, extra isn't content nor padding, so add border
			if ( extra !== "padding" ) {
				val += jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles );
			}
		}
	}

	return val;
}

function getWidthOrHeight( elem, name, extra ) {

	// Start with offset property, which is equivalent to the border-box value
	var valueIsBorderBox = true,
		val = name === "width" ? elem.offsetWidth : elem.offsetHeight,
		styles = getStyles( elem ),
		isBorderBox = jQuery.css( elem, "boxSizing", false, styles ) === "border-box";

	// Support: IE11 only
	// In IE 11 fullscreen elements inside of an iframe have
	// 100x too small dimensions (gh-1764).
	if ( document.msFullscreenElement && window.top !== window ) {

		// Support: IE11 only
		// Running getBoundingClientRect on a disconnected node
		// in IE throws an error.
		if ( elem.getClientRects().length ) {
			val = Math.round( elem.getBoundingClientRect()[ name ] * 100 );
		}
	}

	// Some non-html elements return undefined for offsetWidth, so check for null/undefined
	// svg - https://bugzilla.mozilla.org/show_bug.cgi?id=649285
	// MathML - https://bugzilla.mozilla.org/show_bug.cgi?id=491668
	if ( val <= 0 || val == null ) {

		// Fall back to computed then uncomputed css if necessary
		val = curCSS( elem, name, styles );
		if ( val < 0 || val == null ) {
			val = elem.style[ name ];
		}

		// Computed unit is not pixels. Stop here and return.
		if ( rnumnonpx.test( val ) ) {
			return val;
		}

		// Check for style in case a browser which returns unreliable values
		// for getComputedStyle silently falls back to the reliable elem.style
		valueIsBorderBox = isBorderBox &&
			( support.boxSizingReliable() || val === elem.style[ name ] );

		// Normalize "", auto, and prepare for extra
		val = parseFloat( val ) || 0;
	}

	// Use the active box-sizing model to add/subtract irrelevant styles
	return ( val +
		augmentWidthOrHeight(
			elem,
			name,
			extra || ( isBorderBox ? "border" : "content" ),
			valueIsBorderBox,
			styles
		)
	) + "px";
}

function showHide( elements, show ) {
	var display, elem, hidden,
		values = [],
		index = 0,
		length = elements.length;

	for ( ; index < length; index++ ) {
		elem = elements[ index ];
		if ( !elem.style ) {
			continue;
		}

		values[ index ] = dataPriv.get( elem, "olddisplay" );
		display = elem.style.display;
		if ( show ) {

			// Reset the inline display of this element to learn if it is
			// being hidden by cascaded rules or not
			if ( !values[ index ] && display === "none" ) {
				elem.style.display = "";
			}

			// Set elements which have been overridden with display: none
			// in a stylesheet to whatever the default browser style is
			// for such an element
			if ( elem.style.display === "" && isHidden( elem ) ) {
				values[ index ] = dataPriv.access(
					elem,
					"olddisplay",
					defaultDisplay( elem.nodeName )
				);
			}
		} else {
			hidden = isHidden( elem );

			if ( display !== "none" || !hidden ) {
				dataPriv.set(
					elem,
					"olddisplay",
					hidden ? display : jQuery.css( elem, "display" )
				);
			}
		}
	}

	// Set the display of most of the elements in a second loop
	// to avoid the constant reflow
	for ( index = 0; index < length; index++ ) {
		elem = elements[ index ];
		if ( !elem.style ) {
			continue;
		}
		if ( !show || elem.style.display === "none" || elem.style.display === "" ) {
			elem.style.display = show ? values[ index ] || "" : "none";
		}
	}

	return elements;
}

jQuery.extend( {

	// Add in style property hooks for overriding the default
	// behavior of getting and setting a style property
	cssHooks: {
		opacity: {
			get: function( elem, computed ) {
				if ( computed ) {

					// We should always get a number back from opacity
					var ret = curCSS( elem, "opacity" );
					return ret === "" ? "1" : ret;
				}
			}
		}
	},

	// Don't automatically add "px" to these possibly-unitless properties
	cssNumber: {
		"animationIterationCount": true,
		"columnCount": true,
		"fillOpacity": true,
		"flexGrow": true,
		"flexShrink": true,
		"fontWeight": true,
		"lineHeight": true,
		"opacity": true,
		"order": true,
		"orphans": true,
		"widows": true,
		"zIndex": true,
		"zoom": true
	},

	// Add in properties whose names you wish to fix before
	// setting or getting the value
	cssProps: {
		"float": "cssFloat"
	},

	// Get and set the style property on a DOM Node
	style: function( elem, name, value, extra ) {

		// Don't set styles on text and comment nodes
		if ( !elem || elem.nodeType === 3 || elem.nodeType === 8 || !elem.style ) {
			return;
		}

		// Make sure that we're working with the right name
		var ret, type, hooks,
			origName = jQuery.camelCase( name ),
			style = elem.style;

		name = jQuery.cssProps[ origName ] ||
			( jQuery.cssProps[ origName ] = vendorPropName( origName ) || origName );

		// Gets hook for the prefixed version, then unprefixed version
		hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ];

		// Check if we're setting a value
		if ( value !== undefined ) {
			type = typeof value;

			// Convert "+=" or "-=" to relative numbers (#7345)
			if ( type === "string" && ( ret = rcssNum.exec( value ) ) && ret[ 1 ] ) {
				value = adjustCSS( elem, name, ret );

				// Fixes bug #9237
				type = "number";
			}

			// Make sure that null and NaN values aren't set (#7116)
			if ( value == null || value !== value ) {
				return;
			}

			// If a number was passed in, add the unit (except for certain CSS properties)
			if ( type === "number" ) {
				value += ret && ret[ 3 ] || ( jQuery.cssNumber[ origName ] ? "" : "px" );
			}

			// Support: IE9-11+
			// background-* props affect original clone's values
			if ( !support.clearCloneStyle && value === "" && name.indexOf( "background" ) === 0 ) {
				style[ name ] = "inherit";
			}

			// If a hook was provided, use that value, otherwise just set the specified value
			if ( !hooks || !( "set" in hooks ) ||
				( value = hooks.set( elem, value, extra ) ) !== undefined ) {

				style[ name ] = value;
			}

		} else {

			// If a hook was provided get the non-computed value from there
			if ( hooks && "get" in hooks &&
				( ret = hooks.get( elem, false, extra ) ) !== undefined ) {

				return ret;
			}

			// Otherwise just get the value from the style object
			return style[ name ];
		}
	},

	css: function( elem, name, extra, styles ) {
		var val, num, hooks,
			origName = jQuery.camelCase( name );

		// Make sure that we're working with the right name
		name = jQuery.cssProps[ origName ] ||
			( jQuery.cssProps[ origName ] = vendorPropName( origName ) || origName );

		// Try prefixed name followed by the unprefixed name
		hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ];

		// If a hook was provided get the computed value from there
		if ( hooks && "get" in hooks ) {
			val = hooks.get( elem, true, extra );
		}

		// Otherwise, if a way to get the computed value exists, use that
		if ( val === undefined ) {
			val = curCSS( elem, name, styles );
		}

		// Convert "normal" to computed value
		if ( val === "normal" && name in cssNormalTransform ) {
			val = cssNormalTransform[ name ];
		}

		// Make numeric if forced or a qualifier was provided and val looks numeric
		if ( extra === "" || extra ) {
			num = parseFloat( val );
			return extra === true || isFinite( num ) ? num || 0 : val;
		}
		return val;
	}
} );

jQuery.each( [ "height", "width" ], function( i, name ) {
	jQuery.cssHooks[ name ] = {
		get: function( elem, computed, extra ) {
			if ( computed ) {

				// Certain elements can have dimension info if we invisibly show them
				// but it must have a current display style that would benefit
				return rdisplayswap.test( jQuery.css( elem, "display" ) ) &&
					elem.offsetWidth === 0 ?
						swap( elem, cssShow, function() {
							return getWidthOrHeight( elem, name, extra );
						} ) :
						getWidthOrHeight( elem, name, extra );
			}
		},

		set: function( elem, value, extra ) {
			var matches,
				styles = extra && getStyles( elem ),
				subtract = extra && augmentWidthOrHeight(
					elem,
					name,
					extra,
					jQuery.css( elem, "boxSizing", false, styles ) === "border-box",
					styles
				);

			// Convert to pixels if value adjustment is needed
			if ( subtract && ( matches = rcssNum.exec( value ) ) &&
				( matches[ 3 ] || "px" ) !== "px" ) {

				elem.style[ name ] = value;
				value = jQuery.css( elem, name );
			}

			return setPositiveNumber( elem, value, subtract );
		}
	};
} );

jQuery.cssHooks.marginLeft = addGetHookIf( support.reliableMarginLeft,
	function( elem, computed ) {
		if ( computed ) {
			return ( parseFloat( curCSS( elem, "marginLeft" ) ) ||
				elem.getBoundingClientRect().left -
					swap( elem, { marginLeft: 0 }, function() {
						return elem.getBoundingClientRect().left;
					} )
				) + "px";
		}
	}
);

// Support: Android 2.3
jQuery.cssHooks.marginRight = addGetHookIf( support.reliableMarginRight,
	function( elem, computed ) {
		if ( computed ) {
			return swap( elem, { "display": "inline-block" },
				curCSS, [ elem, "marginRight" ] );
		}
	}
);

// These hooks are used by animate to expand properties
jQuery.each( {
	margin: "",
	padding: "",
	border: "Width"
}, function( prefix, suffix ) {
	jQuery.cssHooks[ prefix + suffix ] = {
		expand: function( value ) {
			var i = 0,
				expanded = {},

				// Assumes a single number if not a string
				parts = typeof value === "string" ? value.split( " " ) : [ value ];

			for ( ; i < 4; i++ ) {
				expanded[ prefix + cssExpand[ i ] + suffix ] =
					parts[ i ] || parts[ i - 2 ] || parts[ 0 ];
			}

			return expanded;
		}
	};

	if ( !rmargin.test( prefix ) ) {
		jQuery.cssHooks[ prefix + suffix ].set = setPositiveNumber;
	}
} );

jQuery.fn.extend( {
	css: function( name, value ) {
		return access( this, function( elem, name, value ) {
			var styles, len,
				map = {},
				i = 0;

			if ( jQuery.isArray( name ) ) {
				styles = getStyles( elem );
				len = name.length;

				for ( ; i < len; i++ ) {
					map[ name[ i ] ] = jQuery.css( elem, name[ i ], false, styles );
				}

				return map;
			}

			return value !== undefined ?
				jQuery.style( elem, name, value ) :
				jQuery.css( elem, name );
		}, name, value, arguments.length > 1 );
	},
	show: function() {
		return showHide( this, true );
	},
	hide: function() {
		return showHide( this );
	},
	toggle: function( state ) {
		if ( typeof state === "boolean" ) {
			return state ? this.show() : this.hide();
		}

		return this.each( function() {
			if ( isHidden( this ) ) {
				jQuery( this ).show();
			} else {
				jQuery( this ).hide();
			}
		} );
	}
} );


function Tween( elem, options, prop, end, easing ) {
	return new Tween.prototype.init( elem, options, prop, end, easing );
}
jQuery.Tween = Tween;

Tween.prototype = {
	constructor: Tween,
	init: function( elem, options, prop, end, easing, unit ) {
		this.elem = elem;
		this.prop = prop;
		this.easing = easing || jQuery.easing._default;
		this.options = options;
		this.start = this.now = this.cur();
		this.end = end;
		this.unit = unit || ( jQuery.cssNumber[ prop ] ? "" : "px" );
	},
	cur: function() {
		var hooks = Tween.propHooks[ this.prop ];

		return hooks && hooks.get ?
			hooks.get( this ) :
			Tween.propHooks._default.get( this );
	},
	run: function( percent ) {
		var eased,
			hooks = Tween.propHooks[ this.prop ];

		if ( this.options.duration ) {
			this.pos = eased = jQuery.easing[ this.easing ](
				percent, this.options.duration * percent, 0, 1, this.options.duration
			);
		} else {
			this.pos = eased = percent;
		}
		this.now = ( this.end - this.start ) * eased + this.start;

		if ( this.options.step ) {
			this.options.step.call( this.elem, this.now, this );
		}

		if ( hooks && hooks.set ) {
			hooks.set( this );
		} else {
			Tween.propHooks._default.set( this );
		}
		return this;
	}
};

Tween.prototype.init.prototype = Tween.prototype;

Tween.propHooks = {
	_default: {
		get: function( tween ) {
			var result;

			// Use a property on the element directly when it is not a DOM element,
			// or when there is no matching style property that exists.
			if ( tween.elem.nodeType !== 1 ||
				tween.elem[ tween.prop ] != null && tween.elem.style[ tween.prop ] == null ) {
				return tween.elem[ tween.prop ];
			}

			// Passing an empty string as a 3rd parameter to .css will automatically
			// attempt a parseFloat and fallback to a string if the parse fails.
			// Simple values such as "10px" are parsed to Float;
			// complex values such as "rotate(1rad)" are returned as-is.
			result = jQuery.css( tween.elem, tween.prop, "" );

			// Empty strings, null, undefined and "auto" are converted to 0.
			return !result || result === "auto" ? 0 : result;
		},
		set: function( tween ) {

			// Use step hook for back compat.
			// Use cssHook if its there.
			// Use .style if available and use plain properties where available.
			if ( jQuery.fx.step[ tween.prop ] ) {
				jQuery.fx.step[ tween.prop ]( tween );
			} else if ( tween.elem.nodeType === 1 &&
				( tween.elem.style[ jQuery.cssProps[ tween.prop ] ] != null ||
					jQuery.cssHooks[ tween.prop ] ) ) {
				jQuery.style( tween.elem, tween.prop, tween.now + tween.unit );
			} else {
				tween.elem[ tween.prop ] = tween.now;
			}
		}
	}
};

// Support: IE9
// Panic based approach to setting things on disconnected nodes
Tween.propHooks.scrollTop = Tween.propHooks.scrollLeft = {
	set: function( tween ) {
		if ( tween.elem.nodeType && tween.elem.parentNode ) {
			tween.elem[ tween.prop ] = tween.now;
		}
	}
};

jQuery.easing = {
	linear: function( p ) {
		return p;
	},
	swing: function( p ) {
		return 0.5 - Math.cos( p * Math.PI ) / 2;
	},
	_default: "swing"
};

jQuery.fx = Tween.prototype.init;

// Back Compat <1.8 extension point
jQuery.fx.step = {};




var
	fxNow, timerId,
	rfxtypes = /^(?:toggle|show|hide)$/,
	rrun = /queueHooks$/;

// Animations created synchronously will run synchronously
function createFxNow() {
	window.setTimeout( function() {
		fxNow = undefined;
	} );
	return ( fxNow = jQuery.now() );
}

// Generate parameters to create a standard animation
function genFx( type, includeWidth ) {
	var which,
		i = 0,
		attrs = { height: type };

	// If we include width, step value is 1 to do all cssExpand values,
	// otherwise step value is 2 to skip over Left and Right
	includeWidth = includeWidth ? 1 : 0;
	for ( ; i < 4 ; i += 2 - includeWidth ) {
		which = cssExpand[ i ];
		attrs[ "margin" + which ] = attrs[ "padding" + which ] = type;
	}

	if ( includeWidth ) {
		attrs.opacity = attrs.width = type;
	}

	return attrs;
}

function createTween( value, prop, animation ) {
	var tween,
		collection = ( Animation.tweeners[ prop ] || [] ).concat( Animation.tweeners[ "*" ] ),
		index = 0,
		length = collection.length;
	for ( ; index < length; index++ ) {
		if ( ( tween = collection[ index ].call( animation, prop, value ) ) ) {

			// We're done with this property
			return tween;
		}
	}
}

function defaultPrefilter( elem, props, opts ) {
	/* jshint validthis: true */
	var prop, value, toggle, tween, hooks, oldfire, display, checkDisplay,
		anim = this,
		orig = {},
		style = elem.style,
		hidden = elem.nodeType && isHidden( elem ),
		dataShow = dataPriv.get( elem, "fxshow" );

	// Handle queue: false promises
	if ( !opts.queue ) {
		hooks = jQuery._queueHooks( elem, "fx" );
		if ( hooks.unqueued == null ) {
			hooks.unqueued = 0;
			oldfire = hooks.empty.fire;
			hooks.empty.fire = function() {
				if ( !hooks.unqueued ) {
					oldfire();
				}
			};
		}
		hooks.unqueued++;

		anim.always( function() {

			// Ensure the complete handler is called before this completes
			anim.always( function() {
				hooks.unqueued--;
				if ( !jQuery.queue( elem, "fx" ).length ) {
					hooks.empty.fire();
				}
			} );
		} );
	}

	// Height/width overflow pass
	if ( elem.nodeType === 1 && ( "height" in props || "width" in props ) ) {

		// Make sure that nothing sneaks out
		// Record all 3 overflow attributes because IE9-10 do not
		// change the overflow attribute when overflowX and
		// overflowY are set to the same value
		opts.overflow = [ style.overflow, style.overflowX, style.overflowY ];

		// Set display property to inline-block for height/width
		// animations on inline elements that are having width/height animated
		display = jQuery.css( elem, "display" );

		// Test default display if display is currently "none"
		checkDisplay = display === "none" ?
			dataPriv.get( elem, "olddisplay" ) || defaultDisplay( elem.nodeName ) : display;

		if ( checkDisplay === "inline" && jQuery.css( elem, "float" ) === "none" ) {
			style.display = "inline-block";
		}
	}

	if ( opts.overflow ) {
		style.overflow = "hidden";
		anim.always( function() {
			style.overflow = opts.overflow[ 0 ];
			style.overflowX = opts.overflow[ 1 ];
			style.overflowY = opts.overflow[ 2 ];
		} );
	}

	// show/hide pass
	for ( prop in props ) {
		value = props[ prop ];
		if ( rfxtypes.exec( value ) ) {
			delete props[ prop ];
			toggle = toggle || value === "toggle";
			if ( value === ( hidden ? "hide" : "show" ) ) {

				// If there is dataShow left over from a stopped hide or show
				// and we are going to proceed with show, we should pretend to be hidden
				if ( value === "show" && dataShow && dataShow[ prop ] !== undefined ) {
					hidden = true;
				} else {
					continue;
				}
			}
			orig[ prop ] = dataShow && dataShow[ prop ] || jQuery.style( elem, prop );

		// Any non-fx value stops us from restoring the original display value
		} else {
			display = undefined;
		}
	}

	if ( !jQuery.isEmptyObject( orig ) ) {
		if ( dataShow ) {
			if ( "hidden" in dataShow ) {
				hidden = dataShow.hidden;
			}
		} else {
			dataShow = dataPriv.access( elem, "fxshow", {} );
		}

		// Store state if its toggle - enables .stop().toggle() to "reverse"
		if ( toggle ) {
			dataShow.hidden = !hidden;
		}
		if ( hidden ) {
			jQuery( elem ).show();
		} else {
			anim.done( function() {
				jQuery( elem ).hide();
			} );
		}
		anim.done( function() {
			var prop;

			dataPriv.remove( elem, "fxshow" );
			for ( prop in orig ) {
				jQuery.style( elem, prop, orig[ prop ] );
			}
		} );
		for ( prop in orig ) {
			tween = createTween( hidden ? dataShow[ prop ] : 0, prop, anim );

			if ( !( prop in dataShow ) ) {
				dataShow[ prop ] = tween.start;
				if ( hidden ) {
					tween.end = tween.start;
					tween.start = prop === "width" || prop === "height" ? 1 : 0;
				}
			}
		}

	// If this is a noop like .hide().hide(), restore an overwritten display value
	} else if ( ( display === "none" ? defaultDisplay( elem.nodeName ) : display ) === "inline" ) {
		style.display = display;
	}
}

function propFilter( props, specialEasing ) {
	var index, name, easing, value, hooks;

	// camelCase, specialEasing and expand cssHook pass
	for ( index in props ) {
		name = jQuery.camelCase( index );
		easing = specialEasing[ name ];
		value = props[ index ];
		if ( jQuery.isArray( value ) ) {
			easing = value[ 1 ];
			value = props[ index ] = value[ 0 ];
		}

		if ( index !== name ) {
			props[ name ] = value;
			delete props[ index ];
		}

		hooks = jQuery.cssHooks[ name ];
		if ( hooks && "expand" in hooks ) {
			value = hooks.expand( value );
			delete props[ name ];

			// Not quite $.extend, this won't overwrite existing keys.
			// Reusing 'index' because we have the correct "name"
			for ( index in value ) {
				if ( !( index in props ) ) {
					props[ index ] = value[ index ];
					specialEasing[ index ] = easing;
				}
			}
		} else {
			specialEasing[ name ] = easing;
		}
	}
}

function Animation( elem, properties, options ) {
	var result,
		stopped,
		index = 0,
		length = Animation.prefilters.length,
		deferred = jQuery.Deferred().always( function() {

			// Don't match elem in the :animated selector
			delete tick.elem;
		} ),
		tick = function() {
			if ( stopped ) {
				return false;
			}
			var currentTime = fxNow || createFxNow(),
				remaining = Math.max( 0, animation.startTime + animation.duration - currentTime ),

				// Support: Android 2.3
				// Archaic crash bug won't allow us to use `1 - ( 0.5 || 0 )` (#12497)
				temp = remaining / animation.duration || 0,
				percent = 1 - temp,
				index = 0,
				length = animation.tweens.length;

			for ( ; index < length ; index++ ) {
				animation.tweens[ index ].run( percent );
			}

			deferred.notifyWith( elem, [ animation, percent, remaining ] );

			if ( percent < 1 && length ) {
				return remaining;
			} else {
				deferred.resolveWith( elem, [ animation ] );
				return false;
			}
		},
		animation = deferred.promise( {
			elem: elem,
			props: jQuery.extend( {}, properties ),
			opts: jQuery.extend( true, {
				specialEasing: {},
				easing: jQuery.easing._default
			}, options ),
			originalProperties: properties,
			originalOptions: options,
			startTime: fxNow || createFxNow(),
			duration: options.duration,
			tweens: [],
			createTween: function( prop, end ) {
				var tween = jQuery.Tween( elem, animation.opts, prop, end,
						animation.opts.specialEasing[ prop ] || animation.opts.easing );
				animation.tweens.push( tween );
				return tween;
			},
			stop: function( gotoEnd ) {
				var index = 0,

					// If we are going to the end, we want to run all the tweens
					// otherwise we skip this part
					length = gotoEnd ? animation.tweens.length : 0;
				if ( stopped ) {
					return this;
				}
				stopped = true;
				for ( ; index < length ; index++ ) {
					animation.tweens[ index ].run( 1 );
				}

				// Resolve when we played the last frame; otherwise, reject
				if ( gotoEnd ) {
					deferred.notifyWith( elem, [ animation, 1, 0 ] );
					deferred.resolveWith( elem, [ animation, gotoEnd ] );
				} else {
					deferred.rejectWith( elem, [ animation, gotoEnd ] );
				}
				return this;
			}
		} ),
		props = animation.props;

	propFilter( props, animation.opts.specialEasing );

	for ( ; index < length ; index++ ) {
		result = Animation.prefilters[ index ].call( animation, elem, props, animation.opts );
		if ( result ) {
			if ( jQuery.isFunction( result.stop ) ) {
				jQuery._queueHooks( animation.elem, animation.opts.queue ).stop =
					jQuery.proxy( result.stop, result );
			}
			return result;
		}
	}

	jQuery.map( props, createTween, animation );

	if ( jQuery.isFunction( animation.opts.start ) ) {
		animation.opts.start.call( elem, animation );
	}

	jQuery.fx.timer(
		jQuery.extend( tick, {
			elem: elem,
			anim: animation,
			queue: animation.opts.queue
		} )
	);

	// attach callbacks from options
	return animation.progress( animation.opts.progress )
		.done( animation.opts.done, animation.opts.complete )
		.fail( animation.opts.fail )
		.always( animation.opts.always );
}

jQuery.Animation = jQuery.extend( Animation, {
	tweeners: {
		"*": [ function( prop, value ) {
			var tween = this.createTween( prop, value );
			adjustCSS( tween.elem, prop, rcssNum.exec( value ), tween );
			return tween;
		} ]
	},

	tweener: function( props, callback ) {
		if ( jQuery.isFunction( props ) ) {
			callback = props;
			props = [ "*" ];
		} else {
			props = props.match( rnotwhite );
		}

		var prop,
			index = 0,
			length = props.length;

		for ( ; index < length ; index++ ) {
			prop = props[ index ];
			Animation.tweeners[ prop ] = Animation.tweeners[ prop ] || [];
			Animation.tweeners[ prop ].unshift( callback );
		}
	},

	prefilters: [ defaultPrefilter ],

	prefilter: function( callback, prepend ) {
		if ( prepend ) {
			Animation.prefilters.unshift( callback );
		} else {
			Animation.prefilters.push( callback );
		}
	}
} );

jQuery.speed = function( speed, easing, fn ) {
	var opt = speed && typeof speed === "object" ? jQuery.extend( {}, speed ) : {
		complete: fn || !fn && easing ||
			jQuery.isFunction( speed ) && speed,
		duration: speed,
		easing: fn && easing || easing && !jQuery.isFunction( easing ) && easing
	};

	opt.duration = jQuery.fx.off ? 0 : typeof opt.duration === "number" ?
		opt.duration : opt.duration in jQuery.fx.speeds ?
			jQuery.fx.speeds[ opt.duration ] : jQuery.fx.speeds._default;

	// Normalize opt.queue - true/undefined/null -> "fx"
	if ( opt.queue == null || opt.queue === true ) {
		opt.queue = "fx";
	}

	// Queueing
	opt.old = opt.complete;

	opt.complete = function() {
		if ( jQuery.isFunction( opt.old ) ) {
			opt.old.call( this );
		}

		if ( opt.queue ) {
			jQuery.dequeue( this, opt.queue );
		}
	};

	return opt;
};

jQuery.fn.extend( {
	fadeTo: function( speed, to, easing, callback ) {

		// Show any hidden elements after setting opacity to 0
		return this.filter( isHidden ).css( "opacity", 0 ).show()

			// Animate to the value specified
			.end().animate( { opacity: to }, speed, easing, callback );
	},
	animate: function( prop, speed, easing, callback ) {
		var empty = jQuery.isEmptyObject( prop ),
			optall = jQuery.speed( speed, easing, callback ),
			doAnimation = function() {

				// Operate on a copy of prop so per-property easing won't be lost
				var anim = Animation( this, jQuery.extend( {}, prop ), optall );

				// Empty animations, or finishing resolves immediately
				if ( empty || dataPriv.get( this, "finish" ) ) {
					anim.stop( true );
				}
			};
			doAnimation.finish = doAnimation;

		return empty || optall.queue === false ?
			this.each( doAnimation ) :
			this.queue( optall.queue, doAnimation );
	},
	stop: function( type, clearQueue, gotoEnd ) {
		var stopQueue = function( hooks ) {
			var stop = hooks.stop;
			delete hooks.stop;
			stop( gotoEnd );
		};

		if ( typeof type !== "string" ) {
			gotoEnd = clearQueue;
			clearQueue = type;
			type = undefined;
		}
		if ( clearQueue && type !== false ) {
			this.queue( type || "fx", [] );
		}

		return this.each( function() {
			var dequeue = true,
				index = type != null && type + "queueHooks",
				timers = jQuery.timers,
				data = dataPriv.get( this );

			if ( index ) {
				if ( data[ index ] && data[ index ].stop ) {
					stopQueue( data[ index ] );
				}
			} else {
				for ( index in data ) {
					if ( data[ index ] && data[ index ].stop && rrun.test( index ) ) {
						stopQueue( data[ index ] );
					}
				}
			}

			for ( index = timers.length; index--; ) {
				if ( timers[ index ].elem === this &&
					( type == null || timers[ index ].queue === type ) ) {

					timers[ index ].anim.stop( gotoEnd );
					dequeue = false;
					timers.splice( index, 1 );
				}
			}

			// Start the next in the queue if the last step wasn't forced.
			// Timers currently will call their complete callbacks, which
			// will dequeue but only if they were gotoEnd.
			if ( dequeue || !gotoEnd ) {
				jQuery.dequeue( this, type );
			}
		} );
	},
	finish: function( type ) {
		if ( type !== false ) {
			type = type || "fx";
		}
		return this.each( function() {
			var index,
				data = dataPriv.get( this ),
				queue = data[ type + "queue" ],
				hooks = data[ type + "queueHooks" ],
				timers = jQuery.timers,
				length = queue ? queue.length : 0;

			// Enable finishing flag on private data
			data.finish = true;

			// Empty the queue first
			jQuery.queue( this, type, [] );

			if ( hooks && hooks.stop ) {
				hooks.stop.call( this, true );
			}

			// Look for any active animations, and finish them
			for ( index = timers.length; index--; ) {
				if ( timers[ index ].elem === this && timers[ index ].queue === type ) {
					timers[ index ].anim.stop( true );
					timers.splice( index, 1 );
				}
			}

			// Look for any animations in the old queue and finish them
			for ( index = 0; index < length; index++ ) {
				if ( queue[ index ] && queue[ index ].finish ) {
					queue[ index ].finish.call( this );
				}
			}

			// Turn off finishing flag
			delete data.finish;
		} );
	}
} );

jQuery.each( [ "toggle", "show", "hide" ], function( i, name ) {
	var cssFn = jQuery.fn[ name ];
	jQuery.fn[ name ] = function( speed, easing, callback ) {
		return speed == null || typeof speed === "boolean" ?
			cssFn.apply( this, arguments ) :
			this.animate( genFx( name, true ), speed, easing, callback );
	};
} );

// Generate shortcuts for custom animations
jQuery.each( {
	slideDown: genFx( "show" ),
	slideUp: genFx( "hide" ),
	slideToggle: genFx( "toggle" ),
	fadeIn: { opacity: "show" },
	fadeOut: { opacity: "hide" },
	fadeToggle: { opacity: "toggle" }
}, function( name, props ) {
	jQuery.fn[ name ] = function( speed, easing, callback ) {
		return this.animate( props, speed, easing, callback );
	};
} );

jQuery.timers = [];
jQuery.fx.tick = function() {
	var timer,
		i = 0,
		timers = jQuery.timers;

	fxNow = jQuery.now();

	for ( ; i < timers.length; i++ ) {
		timer = timers[ i ];

		// Checks the timer has not already been removed
		if ( !timer() && timers[ i ] === timer ) {
			timers.splice( i--, 1 );
		}
	}

	if ( !timers.length ) {
		jQuery.fx.stop();
	}
	fxNow = undefined;
};

jQuery.fx.timer = function( timer ) {
	jQuery.timers.push( timer );
	if ( timer() ) {
		jQuery.fx.start();
	} else {
		jQuery.timers.pop();
	}
};

jQuery.fx.interval = 13;
jQuery.fx.start = function() {
	if ( !timerId ) {
		timerId = window.setInterval( jQuery.fx.tick, jQuery.fx.interval );
	}
};

jQuery.fx.stop = function() {
	window.clearInterval( timerId );

	timerId = null;
};

jQuery.fx.speeds = {
	slow: 600,
	fast: 200,

	// Default speed
	_default: 400
};


// Based off of the plugin by Clint Helfers, with permission.
// http://web.archive.org/web/20100324014747/http://blindsignals.com/index.php/2009/07/jquery-delay/
jQuery.fn.delay = function( time, type ) {
	time = jQuery.fx ? jQuery.fx.speeds[ time ] || time : time;
	type = type || "fx";

	return this.queue( type, function( next, hooks ) {
		var timeout = window.setTimeout( next, time );
		hooks.stop = function() {
			window.clearTimeout( timeout );
		};
	} );
};


( function() {
	var input = document.createElement( "input" ),
		select = document.createElement( "select" ),
		opt = select.appendChild( document.createElement( "option" ) );

	input.type = "checkbox";

	// Support: iOS<=5.1, Android<=4.2+
	// Default value for a checkbox should be "on"
	support.checkOn = input.value !== "";

	// Support: IE<=11+
	// Must access selectedIndex to make default options select
	support.optSelected = opt.selected;

	// Support: Android<=2.3
	// Options inside disabled selects are incorrectly marked as disabled
	select.disabled = true;
	support.optDisabled = !opt.disabled;

	// Support: IE<=11+
	// An input loses its value after becoming a radio
	input = document.createElement( "input" );
	input.value = "t";
	input.type = "radio";
	support.radioValue = input.value === "t";
} )();


var boolHook,
	attrHandle = jQuery.expr.attrHandle;

jQuery.fn.extend( {
	attr: function( name, value ) {
		return access( this, jQuery.attr, name, value, arguments.length > 1 );
	},

	removeAttr: function( name ) {
		return this.each( function() {
			jQuery.removeAttr( this, name );
		} );
	}
} );

jQuery.extend( {
	attr: function( elem, name, value ) {
		var ret, hooks,
			nType = elem.nodeType;

		// Don't get/set attributes on text, comment and attribute nodes
		if ( nType === 3 || nType === 8 || nType === 2 ) {
			return;
		}

		// Fallback to prop when attributes are not supported
		if ( typeof elem.getAttribute === "undefined" ) {
			return jQuery.prop( elem, name, value );
		}

		// All attributes are lowercase
		// Grab necessary hook if one is defined
		if ( nType !== 1 || !jQuery.isXMLDoc( elem ) ) {
			name = name.toLowerCase();
			hooks = jQuery.attrHooks[ name ] ||
				( jQuery.expr.match.bool.test( name ) ? boolHook : undefined );
		}

		if ( value !== undefined ) {
			if ( value === null ) {
				jQuery.removeAttr( elem, name );
				return;
			}

			if ( hooks && "set" in hooks &&
				( ret = hooks.set( elem, value, name ) ) !== undefined ) {
				return ret;
			}

			elem.setAttribute( name, value + "" );
			return value;
		}

		if ( hooks && "get" in hooks && ( ret = hooks.get( elem, name ) ) !== null ) {
			return ret;
		}

		ret = jQuery.find.attr( elem, name );

		// Non-existent attributes return null, we normalize to undefined
		return ret == null ? undefined : ret;
	},

	attrHooks: {
		type: {
			set: function( elem, value ) {
				if ( !support.radioValue && value === "radio" &&
					jQuery.nodeName( elem, "input" ) ) {
					var val = elem.value;
					elem.setAttribute( "type", value );
					if ( val ) {
						elem.value = val;
					}
					return value;
				}
			}
		}
	},

	removeAttr: function( elem, value ) {
		var name, propName,
			i = 0,
			attrNames = value && value.match( rnotwhite );

		if ( attrNames && elem.nodeType === 1 ) {
			while ( ( name = attrNames[ i++ ] ) ) {
				propName = jQuery.propFix[ name ] || name;

				// Boolean attributes get special treatment (#10870)
				if ( jQuery.expr.match.bool.test( name ) ) {

					// Set corresponding property to false
					elem[ propName ] = false;
				}

				elem.removeAttribute( name );
			}
		}
	}
} );

// Hooks for boolean attributes
boolHook = {
	set: function( elem, value, name ) {
		if ( value === false ) {

			// Remove boolean attributes when set to false
			jQuery.removeAttr( elem, name );
		} else {
			elem.setAttribute( name, name );
		}
		return name;
	}
};
jQuery.each( jQuery.expr.match.bool.source.match( /\w+/g ), function( i, name ) {
	var getter = attrHandle[ name ] || jQuery.find.attr;

	attrHandle[ name ] = function( elem, name, isXML ) {
		var ret, handle;
		if ( !isXML ) {

			// Avoid an infinite loop by temporarily removing this function from the getter
			handle = attrHandle[ name ];
			attrHandle[ name ] = ret;
			ret = getter( elem, name, isXML ) != null ?
				name.toLowerCase() :
				null;
			attrHandle[ name ] = handle;
		}
		return ret;
	};
} );




var rfocusable = /^(?:input|select|textarea|button)$/i,
	rclickable = /^(?:a|area)$/i;

jQuery.fn.extend( {
	prop: function( name, value ) {
		return access( this, jQuery.prop, name, value, arguments.length > 1 );
	},

	removeProp: function( name ) {
		return this.each( function() {
			delete this[ jQuery.propFix[ name ] || name ];
		} );
	}
} );

jQuery.extend( {
	prop: function( elem, name, value ) {
		var ret, hooks,
			nType = elem.nodeType;

		// Don't get/set properties on text, comment and attribute nodes
		if ( nType === 3 || nType === 8 || nType === 2 ) {
			return;
		}

		if ( nType !== 1 || !jQuery.isXMLDoc( elem ) ) {

			// Fix name and attach hooks
			name = jQuery.propFix[ name ] || name;
			hooks = jQuery.propHooks[ name ];
		}

		if ( value !== undefined ) {
			if ( hooks && "set" in hooks &&
				( ret = hooks.set( elem, value, name ) ) !== undefined ) {
				return ret;
			}

			return ( elem[ name ] = value );
		}

		if ( hooks && "get" in hooks && ( ret = hooks.get( elem, name ) ) !== null ) {
			return ret;
		}

		return elem[ name ];
	},

	propHooks: {
		tabIndex: {
			get: function( elem ) {

				// elem.tabIndex doesn't always return the
				// correct value when it hasn't been explicitly set
				// http://fluidproject.org/blog/2008/01/09/getting-setting-and-removing-tabindex-values-with-javascript/
				// Use proper attribute retrieval(#12072)
				var tabindex = jQuery.find.attr( elem, "tabindex" );

				return tabindex ?
					parseInt( tabindex, 10 ) :
					rfocusable.test( elem.nodeName ) ||
						rclickable.test( elem.nodeName ) && elem.href ?
							0 :
							-1;
			}
		}
	},

	propFix: {
		"for": "htmlFor",
		"class": "className"
	}
} );

// Support: IE <=11 only
// Accessing the selectedIndex property
// forces the browser to respect setting selected
// on the option
// The getter ensures a default option is selected
// when in an optgroup
if ( !support.optSelected ) {
	jQuery.propHooks.selected = {
		get: function( elem ) {
			var parent = elem.parentNode;
			if ( parent && parent.parentNode ) {
				parent.parentNode.selectedIndex;
			}
			return null;
		},
		set: function( elem ) {
			var parent = elem.parentNode;
			if ( parent ) {
				parent.selectedIndex;

				if ( parent.parentNode ) {
					parent.parentNode.selectedIndex;
				}
			}
		}
	};
}

jQuery.each( [
	"tabIndex",
	"readOnly",
	"maxLength",
	"cellSpacing",
	"cellPadding",
	"rowSpan",
	"colSpan",
	"useMap",
	"frameBorder",
	"contentEditable"
], function() {
	jQuery.propFix[ this.toLowerCase() ] = this;
} );




var rclass = /[\t\r\n\f]/g;

function getClass( elem ) {
	return elem.getAttribute && elem.getAttribute( "class" ) || "";
}

jQuery.fn.extend( {
	addClass: function( value ) {
		var classes, elem, cur, curValue, clazz, j, finalValue,
			i = 0;

		if ( jQuery.isFunction( value ) ) {
			return this.each( function( j ) {
				jQuery( this ).addClass( value.call( this, j, getClass( this ) ) );
			} );
		}

		if ( typeof value === "string" && value ) {
			classes = value.match( rnotwhite ) || [];

			while ( ( elem = this[ i++ ] ) ) {
				curValue = getClass( elem );
				cur = elem.nodeType === 1 &&
					( " " + curValue + " " ).replace( rclass, " " );

				if ( cur ) {
					j = 0;
					while ( ( clazz = classes[ j++ ] ) ) {
						if ( cur.indexOf( " " + clazz + " " ) < 0 ) {
							cur += clazz + " ";
						}
					}

					// Only assign if different to avoid unneeded rendering.
					finalValue = jQuery.trim( cur );
					if ( curValue !== finalValue ) {
						elem.setAttribute( "class", finalValue );
					}
				}
			}
		}

		return this;
	},

	removeClass: function( value ) {
		var classes, elem, cur, curValue, clazz, j, finalValue,
			i = 0;

		if ( jQuery.isFunction( value ) ) {
			return this.each( function( j ) {
				jQuery( this ).removeClass( value.call( this, j, getClass( this ) ) );
			} );
		}

		if ( !arguments.length ) {
			return this.attr( "class", "" );
		}

		if ( typeof value === "string" && value ) {
			classes = value.match( rnotwhite ) || [];

			while ( ( elem = this[ i++ ] ) ) {
				curValue = getClass( elem );

				// This expression is here for better compressibility (see addClass)
				cur = elem.nodeType === 1 &&
					( " " + curValue + " " ).replace( rclass, " " );

				if ( cur ) {
					j = 0;
					while ( ( clazz = classes[ j++ ] ) ) {

						// Remove *all* instances
						while ( cur.indexOf( " " + clazz + " " ) > -1 ) {
							cur = cur.replace( " " + clazz + " ", " " );
						}
					}

					// Only assign if different to avoid unneeded rendering.
					finalValue = jQuery.trim( cur );
					if ( curValue !== finalValue ) {
						elem.setAttribute( "class", finalValue );
					}
				}
			}
		}

		return this;
	},

	toggleClass: function( value, stateVal ) {
		var type = typeof value;

		if ( typeof stateVal === "boolean" && type === "string" ) {
			return stateVal ? this.addClass( value ) : this.removeClass( value );
		}

		if ( jQuery.isFunction( value ) ) {
			return this.each( function( i ) {
				jQuery( this ).toggleClass(
					value.call( this, i, getClass( this ), stateVal ),
					stateVal
				);
			} );
		}

		return this.each( function() {
			var className, i, self, classNames;

			if ( type === "string" ) {

				// Toggle individual class names
				i = 0;
				self = jQuery( this );
				classNames = value.match( rnotwhite ) || [];

				while ( ( className = classNames[ i++ ] ) ) {

					// Check each className given, space separated list
					if ( self.hasClass( className ) ) {
						self.removeClass( className );
					} else {
						self.addClass( className );
					}
				}

			// Toggle whole class name
			} else if ( value === undefined || type === "boolean" ) {
				className = getClass( this );
				if ( className ) {

					// Store className if set
					dataPriv.set( this, "__className__", className );
				}

				// If the element has a class name or if we're passed `false`,
				// then remove the whole classname (if there was one, the above saved it).
				// Otherwise bring back whatever was previously saved (if anything),
				// falling back to the empty string if nothing was stored.
				if ( this.setAttribute ) {
					this.setAttribute( "class",
						className || value === false ?
						"" :
						dataPriv.get( this, "__className__" ) || ""
					);
				}
			}
		} );
	},

	hasClass: function( selector ) {
		var className, elem,
			i = 0;

		className = " " + selector + " ";
		while ( ( elem = this[ i++ ] ) ) {
			if ( elem.nodeType === 1 &&
				( " " + getClass( elem ) + " " ).replace( rclass, " " )
					.indexOf( className ) > -1
			) {
				return true;
			}
		}

		return false;
	}
} );




var rreturn = /\r/g,
	rspaces = /[\x20\t\r\n\f]+/g;

jQuery.fn.extend( {
	val: function( value ) {
		var hooks, ret, isFunction,
			elem = this[ 0 ];

		if ( !arguments.length ) {
			if ( elem ) {
				hooks = jQuery.valHooks[ elem.type ] ||
					jQuery.valHooks[ elem.nodeName.toLowerCase() ];

				if ( hooks &&
					"get" in hooks &&
					( ret = hooks.get( elem, "value" ) ) !== undefined
				) {
					return ret;
				}

				ret = elem.value;

				return typeof ret === "string" ?

					// Handle most common string cases
					ret.replace( rreturn, "" ) :

					// Handle cases where value is null/undef or number
					ret == null ? "" : ret;
			}

			return;
		}

		isFunction = jQuery.isFunction( value );

		return this.each( function( i ) {
			var val;

			if ( this.nodeType !== 1 ) {
				return;
			}

			if ( isFunction ) {
				val = value.call( this, i, jQuery( this ).val() );
			} else {
				val = value;
			}

			// Treat null/undefined as ""; convert numbers to string
			if ( val == null ) {
				val = "";

			} else if ( typeof val === "number" ) {
				val += "";

			} else if ( jQuery.isArray( val ) ) {
				val = jQuery.map( val, function( value ) {
					return value == null ? "" : value + "";
				} );
			}

			hooks = jQuery.valHooks[ this.type ] || jQuery.valHooks[ this.nodeName.toLowerCase() ];

			// If set returns undefined, fall back to normal setting
			if ( !hooks || !( "set" in hooks ) || hooks.set( this, val, "value" ) === undefined ) {
				this.value = val;
			}
		} );
	}
} );

jQuery.extend( {
	valHooks: {
		option: {
			get: function( elem ) {

				var val = jQuery.find.attr( elem, "value" );
				return val != null ?
					val :

					// Support: IE10-11+
					// option.text throws exceptions (#14686, #14858)
					// Strip and collapse whitespace
					// https://html.spec.whatwg.org/#strip-and-collapse-whitespace
					jQuery.trim( jQuery.text( elem ) ).replace( rspaces, " " );
			}
		},
		select: {
			get: function( elem ) {
				var value, option,
					options = elem.options,
					index = elem.selectedIndex,
					one = elem.type === "select-one" || index < 0,
					values = one ? null : [],
					max = one ? index + 1 : options.length,
					i = index < 0 ?
						max :
						one ? index : 0;

				// Loop through all the selected options
				for ( ; i < max; i++ ) {
					option = options[ i ];

					// IE8-9 doesn't update selected after form reset (#2551)
					if ( ( option.selected || i === index ) &&

							// Don't return options that are disabled or in a disabled optgroup
							( support.optDisabled ?
								!option.disabled : option.getAttribute( "disabled" ) === null ) &&
							( !option.parentNode.disabled ||
								!jQuery.nodeName( option.parentNode, "optgroup" ) ) ) {

						// Get the specific value for the option
						value = jQuery( option ).val();

						// We don't need an array for one selects
						if ( one ) {
							return value;
						}

						// Multi-Selects return an array
						values.push( value );
					}
				}

				return values;
			},

			set: function( elem, value ) {
				var optionSet, option,
					options = elem.options,
					values = jQuery.makeArray( value ),
					i = options.length;

				while ( i-- ) {
					option = options[ i ];
					if ( option.selected =
						jQuery.inArray( jQuery.valHooks.option.get( option ), values ) > -1
					) {
						optionSet = true;
					}
				}

				// Force browsers to behave consistently when non-matching value is set
				if ( !optionSet ) {
					elem.selectedIndex = -1;
				}
				return values;
			}
		}
	}
} );

// Radios and checkboxes getter/setter
jQuery.each( [ "radio", "checkbox" ], function() {
	jQuery.valHooks[ this ] = {
		set: function( elem, value ) {
			if ( jQuery.isArray( value ) ) {
				return ( elem.checked = jQuery.inArray( jQuery( elem ).val(), value ) > -1 );
			}
		}
	};
	if ( !support.checkOn ) {
		jQuery.valHooks[ this ].get = function( elem ) {
			return elem.getAttribute( "value" ) === null ? "on" : elem.value;
		};
	}
} );




// Return jQuery for attributes-only inclusion


var rfocusMorph = /^(?:focusinfocus|focusoutblur)$/;

jQuery.extend( jQuery.event, {

	trigger: function( event, data, elem, onlyHandlers ) {

		var i, cur, tmp, bubbleType, ontype, handle, special,
			eventPath = [ elem || document ],
			type = hasOwn.call( event, "type" ) ? event.type : event,
			namespaces = hasOwn.call( event, "namespace" ) ? event.namespace.split( "." ) : [];

		cur = tmp = elem = elem || document;

		// Don't do events on text and comment nodes
		if ( elem.nodeType === 3 || elem.nodeType === 8 ) {
			return;
		}

		// focus/blur morphs to focusin/out; ensure we're not firing them right now
		if ( rfocusMorph.test( type + jQuery.event.triggered ) ) {
			return;
		}

		if ( type.indexOf( "." ) > -1 ) {

			// Namespaced trigger; create a regexp to match event type in handle()
			namespaces = type.split( "." );
			type = namespaces.shift();
			namespaces.sort();
		}
		ontype = type.indexOf( ":" ) < 0 && "on" + type;

		// Caller can pass in a jQuery.Event object, Object, or just an event type string
		event = event[ jQuery.expando ] ?
			event :
			new jQuery.Event( type, typeof event === "object" && event );

		// Trigger bitmask: & 1 for native handlers; & 2 for jQuery (always true)
		event.isTrigger = onlyHandlers ? 2 : 3;
		event.namespace = namespaces.join( "." );
		event.rnamespace = event.namespace ?
			new RegExp( "(^|\\.)" + namespaces.join( "\\.(?:.*\\.|)" ) + "(\\.|$)" ) :
			null;

		// Clean up the event in case it is being reused
		event.result = undefined;
		if ( !event.target ) {
			event.target = elem;
		}

		// Clone any incoming data and prepend the event, creating the handler arg list
		data = data == null ?
			[ event ] :
			jQuery.makeArray( data, [ event ] );

		// Allow special events to draw outside the lines
		special = jQuery.event.special[ type ] || {};
		if ( !onlyHandlers && special.trigger && special.trigger.apply( elem, data ) === false ) {
			return;
		}

		// Determine event propagation path in advance, per W3C events spec (#9951)
		// Bubble up to document, then to window; watch for a global ownerDocument var (#9724)
		if ( !onlyHandlers && !special.noBubble && !jQuery.isWindow( elem ) ) {

			bubbleType = special.delegateType || type;
			if ( !rfocusMorph.test( bubbleType + type ) ) {
				cur = cur.parentNode;
			}
			for ( ; cur; cur = cur.parentNode ) {
				eventPath.push( cur );
				tmp = cur;
			}

			// Only add window if we got to document (e.g., not plain obj or detached DOM)
			if ( tmp === ( elem.ownerDocument || document ) ) {
				eventPath.push( tmp.defaultView || tmp.parentWindow || window );
			}
		}

		// Fire handlers on the event path
		i = 0;
		while ( ( cur = eventPath[ i++ ] ) && !event.isPropagationStopped() ) {

			event.type = i > 1 ?
				bubbleType :
				special.bindType || type;

			// jQuery handler
			handle = ( dataPriv.get( cur, "events" ) || {} )[ event.type ] &&
				dataPriv.get( cur, "handle" );
			if ( handle ) {
				handle.apply( cur, data );
			}

			// Native handler
			handle = ontype && cur[ ontype ];
			if ( handle && handle.apply && acceptData( cur ) ) {
				event.result = handle.apply( cur, data );
				if ( event.result === false ) {
					event.preventDefault();
				}
			}
		}
		event.type = type;

		// If nobody prevented the default action, do it now
		if ( !onlyHandlers && !event.isDefaultPrevented() ) {

			if ( ( !special._default ||
				special._default.apply( eventPath.pop(), data ) === false ) &&
				acceptData( elem ) ) {

				// Call a native DOM method on the target with the same name name as the event.
				// Don't do default actions on window, that's where global variables be (#6170)
				if ( ontype && jQuery.isFunction( elem[ type ] ) && !jQuery.isWindow( elem ) ) {

					// Don't re-trigger an onFOO event when we call its FOO() method
					tmp = elem[ ontype ];

					if ( tmp ) {
						elem[ ontype ] = null;
					}

					// Prevent re-triggering of the same event, since we already bubbled it above
					jQuery.event.triggered = type;
					elem[ type ]();
					jQuery.event.triggered = undefined;

					if ( tmp ) {
						elem[ ontype ] = tmp;
					}
				}
			}
		}

		return event.result;
	},

	// Piggyback on a donor event to simulate a different one
	simulate: function( type, elem, event ) {
		var e = jQuery.extend(
			new jQuery.Event(),
			event,
			{
				type: type,
				isSimulated: true

				// Previously, `originalEvent: {}` was set here, so stopPropagation call
				// would not be triggered on donor event, since in our own
				// jQuery.event.stopPropagation function we had a check for existence of
				// originalEvent.stopPropagation method, so, consequently it would be a noop.
				//
				// But now, this "simulate" function is used only for events
				// for which stopPropagation() is noop, so there is no need for that anymore.
				//
				// For the 1.x branch though, guard for "click" and "submit"
				// events is still used, but was moved to jQuery.event.stopPropagation function
				// because `originalEvent` should point to the original event for the constancy
				// with other events and for more focused logic
			}
		);

		jQuery.event.trigger( e, null, elem );

		if ( e.isDefaultPrevented() ) {
			event.preventDefault();
		}
	}

} );

jQuery.fn.extend( {

	trigger: function( type, data ) {
		return this.each( function() {
			jQuery.event.trigger( type, data, this );
		} );
	},
	triggerHandler: function( type, data ) {
		var elem = this[ 0 ];
		if ( elem ) {
			return jQuery.event.trigger( type, data, elem, true );
		}
	}
} );


jQuery.each( ( "blur focus focusin focusout load resize scroll unload click dblclick " +
	"mousedown mouseup mousemove mouseover mouseout mouseenter mouseleave " +
	"change select submit keydown keypress keyup error contextmenu" ).split( " " ),
	function( i, name ) {

	// Handle event binding
	jQuery.fn[ name ] = function( data, fn ) {
		return arguments.length > 0 ?
			this.on( name, null, data, fn ) :
			this.trigger( name );
	};
} );

jQuery.fn.extend( {
	hover: function( fnOver, fnOut ) {
		return this.mouseenter( fnOver ).mouseleave( fnOut || fnOver );
	}
} );




support.focusin = "onfocusin" in window;


// Support: Firefox
// Firefox doesn't have focus(in | out) events
// Related ticket - https://bugzilla.mozilla.org/show_bug.cgi?id=687787
//
// Support: Chrome, Safari
// focus(in | out) events fire after focus & blur events,
// which is spec violation - http://www.w3.org/TR/DOM-Level-3-Events/#events-focusevent-event-order
// Related ticket - https://code.google.com/p/chromium/issues/detail?id=449857
if ( !support.focusin ) {
	jQuery.each( { focus: "focusin", blur: "focusout" }, function( orig, fix ) {

		// Attach a single capturing handler on the document while someone wants focusin/focusout
		var handler = function( event ) {
			jQuery.event.simulate( fix, event.target, jQuery.event.fix( event ) );
		};

		jQuery.event.special[ fix ] = {
			setup: function() {
				var doc = this.ownerDocument || this,
					attaches = dataPriv.access( doc, fix );

				if ( !attaches ) {
					doc.addEventListener( orig, handler, true );
				}
				dataPriv.access( doc, fix, ( attaches || 0 ) + 1 );
			},
			teardown: function() {
				var doc = this.ownerDocument || this,
					attaches = dataPriv.access( doc, fix ) - 1;

				if ( !attaches ) {
					doc.removeEventListener( orig, handler, true );
					dataPriv.remove( doc, fix );

				} else {
					dataPriv.access( doc, fix, attaches );
				}
			}
		};
	} );
}
var location = window.location;

var nonce = jQuery.now();

var rquery = ( /\?/ );



// Support: Android 2.3
// Workaround failure to string-cast null input
jQuery.parseJSON = function( data ) {
	return JSON.parse( data + "" );
};


// Cross-browser xml parsing
jQuery.parseXML = function( data ) {
	var xml;
	if ( !data || typeof data !== "string" ) {
		return null;
	}

	// Support: IE9
	try {
		xml = ( new window.DOMParser() ).parseFromString( data, "text/xml" );
	} catch ( e ) {
		xml = undefined;
	}

	if ( !xml || xml.getElementsByTagName( "parsererror" ).length ) {
		jQuery.error( "Invalid XML: " + data );
	}
	return xml;
};


var
	rhash = /#.*$/,
	rts = /([?&])_=[^&]*/,
	rheaders = /^(.*?):[ \t]*([^\r\n]*)$/mg,

	// #7653, #8125, #8152: local protocol detection
	rlocalProtocol = /^(?:about|app|app-storage|.+-extension|file|res|widget):$/,
	rnoContent = /^(?:GET|HEAD)$/,
	rprotocol = /^\/\//,

	/* Prefilters
	 * 1) They are useful to introduce custom dataTypes (see ajax/jsonp.js for an example)
	 * 2) These are called:
	 *    - BEFORE asking for a transport
	 *    - AFTER param serialization (s.data is a string if s.processData is true)
	 * 3) key is the dataType
	 * 4) the catchall symbol "*" can be used
	 * 5) execution will start with transport dataType and THEN continue down to "*" if needed
	 */
	prefilters = {},

	/* Transports bindings
	 * 1) key is the dataType
	 * 2) the catchall symbol "*" can be used
	 * 3) selection will start with transport dataType and THEN go to "*" if needed
	 */
	transports = {},

	// Avoid comment-prolog char sequence (#10098); must appease lint and evade compression
	allTypes = "*/".concat( "*" ),

	// Anchor tag for parsing the document origin
	originAnchor = document.createElement( "a" );
	originAnchor.href = location.href;

// Base "constructor" for jQuery.ajaxPrefilter and jQuery.ajaxTransport
function addToPrefiltersOrTransports( structure ) {

	// dataTypeExpression is optional and defaults to "*"
	return function( dataTypeExpression, func ) {

		if ( typeof dataTypeExpression !== "string" ) {
			func = dataTypeExpression;
			dataTypeExpression = "*";
		}

		var dataType,
			i = 0,
			dataTypes = dataTypeExpression.toLowerCase().match( rnotwhite ) || [];

		if ( jQuery.isFunction( func ) ) {

			// For each dataType in the dataTypeExpression
			while ( ( dataType = dataTypes[ i++ ] ) ) {

				// Prepend if requested
				if ( dataType[ 0 ] === "+" ) {
					dataType = dataType.slice( 1 ) || "*";
					( structure[ dataType ] = structure[ dataType ] || [] ).unshift( func );

				// Otherwise append
				} else {
					( structure[ dataType ] = structure[ dataType ] || [] ).push( func );
				}
			}
		}
	};
}

// Base inspection function for prefilters and transports
function inspectPrefiltersOrTransports( structure, options, originalOptions, jqXHR ) {

	var inspected = {},
		seekingTransport = ( structure === transports );

	function inspect( dataType ) {
		var selected;
		inspected[ dataType ] = true;
		jQuery.each( structure[ dataType ] || [], function( _, prefilterOrFactory ) {
			var dataTypeOrTransport = prefilterOrFactory( options, originalOptions, jqXHR );
			if ( typeof dataTypeOrTransport === "string" &&
				!seekingTransport && !inspected[ dataTypeOrTransport ] ) {

				options.dataTypes.unshift( dataTypeOrTransport );
				inspect( dataTypeOrTransport );
				return false;
			} else if ( seekingTransport ) {
				return !( selected = dataTypeOrTransport );
			}
		} );
		return selected;
	}

	return inspect( options.dataTypes[ 0 ] ) || !inspected[ "*" ] && inspect( "*" );
}

// A special extend for ajax options
// that takes "flat" options (not to be deep extended)
// Fixes #9887
function ajaxExtend( target, src ) {
	var key, deep,
		flatOptions = jQuery.ajaxSettings.flatOptions || {};

	for ( key in src ) {
		if ( src[ key ] !== undefined ) {
			( flatOptions[ key ] ? target : ( deep || ( deep = {} ) ) )[ key ] = src[ key ];
		}
	}
	if ( deep ) {
		jQuery.extend( true, target, deep );
	}

	return target;
}

/* Handles responses to an ajax request:
 * - finds the right dataType (mediates between content-type and expected dataType)
 * - returns the corresponding response
 */
function ajaxHandleResponses( s, jqXHR, responses ) {

	var ct, type, finalDataType, firstDataType,
		contents = s.contents,
		dataTypes = s.dataTypes;

	// Remove auto dataType and get content-type in the process
	while ( dataTypes[ 0 ] === "*" ) {
		dataTypes.shift();
		if ( ct === undefined ) {
			ct = s.mimeType || jqXHR.getResponseHeader( "Content-Type" );
		}
	}

	// Check if we're dealing with a known content-type
	if ( ct ) {
		for ( type in contents ) {
			if ( contents[ type ] && contents[ type ].test( ct ) ) {
				dataTypes.unshift( type );
				break;
			}
		}
	}

	// Check to see if we have a response for the expected dataType
	if ( dataTypes[ 0 ] in responses ) {
		finalDataType = dataTypes[ 0 ];
	} else {

		// Try convertible dataTypes
		for ( type in responses ) {
			if ( !dataTypes[ 0 ] || s.converters[ type + " " + dataTypes[ 0 ] ] ) {
				finalDataType = type;
				break;
			}
			if ( !firstDataType ) {
				firstDataType = type;
			}
		}

		// Or just use first one
		finalDataType = finalDataType || firstDataType;
	}

	// If we found a dataType
	// We add the dataType to the list if needed
	// and return the corresponding response
	if ( finalDataType ) {
		if ( finalDataType !== dataTypes[ 0 ] ) {
			dataTypes.unshift( finalDataType );
		}
		return responses[ finalDataType ];
	}
}

/* Chain conversions given the request and the original response
 * Also sets the responseXXX fields on the jqXHR instance
 */
function ajaxConvert( s, response, jqXHR, isSuccess ) {
	var conv2, current, conv, tmp, prev,
		converters = {},

		// Work with a copy of dataTypes in case we need to modify it for conversion
		dataTypes = s.dataTypes.slice();

	// Create converters map with lowercased keys
	if ( dataTypes[ 1 ] ) {
		for ( conv in s.converters ) {
			converters[ conv.toLowerCase() ] = s.converters[ conv ];
		}
	}

	current = dataTypes.shift();

	// Convert to each sequential dataType
	while ( current ) {

		if ( s.responseFields[ current ] ) {
			jqXHR[ s.responseFields[ current ] ] = response;
		}

		// Apply the dataFilter if provided
		if ( !prev && isSuccess && s.dataFilter ) {
			response = s.dataFilter( response, s.dataType );
		}

		prev = current;
		current = dataTypes.shift();

		if ( current ) {

		// There's only work to do if current dataType is non-auto
			if ( current === "*" ) {

				current = prev;

			// Convert response if prev dataType is non-auto and differs from current
			} else if ( prev !== "*" && prev !== current ) {

				// Seek a direct converter
				conv = converters[ prev + " " + current ] || converters[ "* " + current ];

				// If none found, seek a pair
				if ( !conv ) {
					for ( conv2 in converters ) {

						// If conv2 outputs current
						tmp = conv2.split( " " );
						if ( tmp[ 1 ] === current ) {

							// If prev can be converted to accepted input
							conv = converters[ prev + " " + tmp[ 0 ] ] ||
								converters[ "* " + tmp[ 0 ] ];
							if ( conv ) {

								// Condense equivalence converters
								if ( conv === true ) {
									conv = converters[ conv2 ];

								// Otherwise, insert the intermediate dataType
								} else if ( converters[ conv2 ] !== true ) {
									current = tmp[ 0 ];
									dataTypes.unshift( tmp[ 1 ] );
								}
								break;
							}
						}
					}
				}

				// Apply converter (if not an equivalence)
				if ( conv !== true ) {

					// Unless errors are allowed to bubble, catch and return them
					if ( conv && s.throws ) {
						response = conv( response );
					} else {
						try {
							response = conv( response );
						} catch ( e ) {
							return {
								state: "parsererror",
								error: conv ? e : "No conversion from " + prev + " to " + current
							};
						}
					}
				}
			}
		}
	}

	return { state: "success", data: response };
}

jQuery.extend( {

	// Counter for holding the number of active queries
	active: 0,

	// Last-Modified header cache for next request
	lastModified: {},
	etag: {},

	ajaxSettings: {
		url: location.href,
		type: "GET",
		isLocal: rlocalProtocol.test( location.protocol ),
		global: true,
		processData: true,
		async: true,
		contentType: "application/x-www-form-urlencoded; charset=UTF-8",
		/*
		timeout: 0,
		data: null,
		dataType: null,
		username: null,
		password: null,
		cache: null,
		throws: false,
		traditional: false,
		headers: {},
		*/

		accepts: {
			"*": allTypes,
			text: "text/plain",
			html: "text/html",
			xml: "application/xml, text/xml",
			json: "application/json, text/javascript"
		},

		contents: {
			xml: /\bxml\b/,
			html: /\bhtml/,
			json: /\bjson\b/
		},

		responseFields: {
			xml: "responseXML",
			text: "responseText",
			json: "responseJSON"
		},

		// Data converters
		// Keys separate source (or catchall "*") and destination types with a single space
		converters: {

			// Convert anything to text
			"* text": String,

			// Text to html (true = no transformation)
			"text html": true,

			// Evaluate text as a json expression
			"text json": jQuery.parseJSON,

			// Parse text as xml
			"text xml": jQuery.parseXML
		},

		// For options that shouldn't be deep extended:
		// you can add your own custom options here if
		// and when you create one that shouldn't be
		// deep extended (see ajaxExtend)
		flatOptions: {
			url: true,
			context: true
		}
	},

	// Creates a full fledged settings object into target
	// with both ajaxSettings and settings fields.
	// If target is omitted, writes into ajaxSettings.
	ajaxSetup: function( target, settings ) {
		return settings ?

			// Building a settings object
			ajaxExtend( ajaxExtend( target, jQuery.ajaxSettings ), settings ) :

			// Extending ajaxSettings
			ajaxExtend( jQuery.ajaxSettings, target );
	},

	ajaxPrefilter: addToPrefiltersOrTransports( prefilters ),
	ajaxTransport: addToPrefiltersOrTransports( transports ),

	// Main method
	ajax: function( url, options ) {

		// If url is an object, simulate pre-1.5 signature
		if ( typeof url === "object" ) {
			options = url;
			url = undefined;
		}

		// Force options to be an object
		options = options || {};

		var transport,

			// URL without anti-cache param
			cacheURL,

			// Response headers
			responseHeadersString,
			responseHeaders,

			// timeout handle
			timeoutTimer,

			// Url cleanup var
			urlAnchor,

			// To know if global events are to be dispatched
			fireGlobals,

			// Loop variable
			i,

			// Create the final options object
			s = jQuery.ajaxSetup( {}, options ),

			// Callbacks context
			callbackContext = s.context || s,

			// Context for global events is callbackContext if it is a DOM node or jQuery collection
			globalEventContext = s.context &&
				( callbackContext.nodeType || callbackContext.jquery ) ?
					jQuery( callbackContext ) :
					jQuery.event,

			// Deferreds
			deferred = jQuery.Deferred(),
			completeDeferred = jQuery.Callbacks( "once memory" ),

			// Status-dependent callbacks
			statusCode = s.statusCode || {},

			// Headers (they are sent all at once)
			requestHeaders = {},
			requestHeadersNames = {},

			// The jqXHR state
			state = 0,

			// Default abort message
			strAbort = "canceled",

			// Fake xhr
			jqXHR = {
				readyState: 0,

				// Builds headers hashtable if needed
				getResponseHeader: function( key ) {
					var match;
					if ( state === 2 ) {
						if ( !responseHeaders ) {
							responseHeaders = {};
							while ( ( match = rheaders.exec( responseHeadersString ) ) ) {
								responseHeaders[ match[ 1 ].toLowerCase() ] = match[ 2 ];
							}
						}
						match = responseHeaders[ key.toLowerCase() ];
					}
					return match == null ? null : match;
				},

				// Raw string
				getAllResponseHeaders: function() {
					return state === 2 ? responseHeadersString : null;
				},

				// Caches the header
				setRequestHeader: function( name, value ) {
					var lname = name.toLowerCase();
					if ( !state ) {
						name = requestHeadersNames[ lname ] = requestHeadersNames[ lname ] || name;
						requestHeaders[ name ] = value;
					}
					return this;
				},

				// Overrides response content-type header
				overrideMimeType: function( type ) {
					if ( !state ) {
						s.mimeType = type;
					}
					return this;
				},

				// Status-dependent callbacks
				statusCode: function( map ) {
					var code;
					if ( map ) {
						if ( state < 2 ) {
							for ( code in map ) {

								// Lazy-add the new callback in a way that preserves old ones
								statusCode[ code ] = [ statusCode[ code ], map[ code ] ];
							}
						} else {

							// Execute the appropriate callbacks
							jqXHR.always( map[ jqXHR.status ] );
						}
					}
					return this;
				},

				// Cancel the request
				abort: function( statusText ) {
					var finalText = statusText || strAbort;
					if ( transport ) {
						transport.abort( finalText );
					}
					done( 0, finalText );
					return this;
				}
			};

		// Attach deferreds
		deferred.promise( jqXHR ).complete = completeDeferred.add;
		jqXHR.success = jqXHR.done;
		jqXHR.error = jqXHR.fail;

		// Remove hash character (#7531: and string promotion)
		// Add protocol if not provided (prefilters might expect it)
		// Handle falsy url in the settings object (#10093: consistency with old signature)
		// We also use the url parameter if available
		s.url = ( ( url || s.url || location.href ) + "" ).replace( rhash, "" )
			.replace( rprotocol, location.protocol + "//" );

		// Alias method option to type as per ticket #12004
		s.type = options.method || options.type || s.method || s.type;

		// Extract dataTypes list
		s.dataTypes = jQuery.trim( s.dataType || "*" ).toLowerCase().match( rnotwhite ) || [ "" ];

		// A cross-domain request is in order when the origin doesn't match the current origin.
		if ( s.crossDomain == null ) {
			urlAnchor = document.createElement( "a" );

			// Support: IE8-11+
			// IE throws exception if url is malformed, e.g. http://example.com:80x/
			try {
				urlAnchor.href = s.url;

				// Support: IE8-11+
				// Anchor's host property isn't correctly set when s.url is relative
				urlAnchor.href = urlAnchor.href;
				s.crossDomain = originAnchor.protocol + "//" + originAnchor.host !==
					urlAnchor.protocol + "//" + urlAnchor.host;
			} catch ( e ) {

				// If there is an error parsing the URL, assume it is crossDomain,
				// it can be rejected by the transport if it is invalid
				s.crossDomain = true;
			}
		}

		// Convert data if not already a string
		if ( s.data && s.processData && typeof s.data !== "string" ) {
			s.data = jQuery.param( s.data, s.traditional );
		}

		// Apply prefilters
		inspectPrefiltersOrTransports( prefilters, s, options, jqXHR );

		// If request was aborted inside a prefilter, stop there
		if ( state === 2 ) {
			return jqXHR;
		}

		// We can fire global events as of now if asked to
		// Don't fire events if jQuery.event is undefined in an AMD-usage scenario (#15118)
		fireGlobals = jQuery.event && s.global;

		// Watch for a new set of requests
		if ( fireGlobals && jQuery.active++ === 0 ) {
			jQuery.event.trigger( "ajaxStart" );
		}

		// Uppercase the type
		s.type = s.type.toUpperCase();

		// Determine if request has content
		s.hasContent = !rnoContent.test( s.type );

		// Save the URL in case we're toying with the If-Modified-Since
		// and/or If-None-Match header later on
		cacheURL = s.url;

		// More options handling for requests with no content
		if ( !s.hasContent ) {

			// If data is available, append data to url
			if ( s.data ) {
				cacheURL = ( s.url += ( rquery.test( cacheURL ) ? "&" : "?" ) + s.data );

				// #9682: remove data so that it's not used in an eventual retry
				delete s.data;
			}

			// Add anti-cache in url if needed
			if ( s.cache === false ) {
				s.url = rts.test( cacheURL ) ?

					// If there is already a '_' parameter, set its value
					cacheURL.replace( rts, "$1_=" + nonce++ ) :

					// Otherwise add one to the end
					cacheURL + ( rquery.test( cacheURL ) ? "&" : "?" ) + "_=" + nonce++;
			}
		}

		// Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
		if ( s.ifModified ) {
			if ( jQuery.lastModified[ cacheURL ] ) {
				jqXHR.setRequestHeader( "If-Modified-Since", jQuery.lastModified[ cacheURL ] );
			}
			if ( jQuery.etag[ cacheURL ] ) {
				jqXHR.setRequestHeader( "If-None-Match", jQuery.etag[ cacheURL ] );
			}
		}

		// Set the correct header, if data is being sent
		if ( s.data && s.hasContent && s.contentType !== false || options.contentType ) {
			jqXHR.setRequestHeader( "Content-Type", s.contentType );
		}

		// Set the Accepts header for the server, depending on the dataType
		jqXHR.setRequestHeader(
			"Accept",
			s.dataTypes[ 0 ] && s.accepts[ s.dataTypes[ 0 ] ] ?
				s.accepts[ s.dataTypes[ 0 ] ] +
					( s.dataTypes[ 0 ] !== "*" ? ", " + allTypes + "; q=0.01" : "" ) :
				s.accepts[ "*" ]
		);

		// Check for headers option
		for ( i in s.headers ) {
			jqXHR.setRequestHeader( i, s.headers[ i ] );
		}

		// Allow custom headers/mimetypes and early abort
		if ( s.beforeSend &&
			( s.beforeSend.call( callbackContext, jqXHR, s ) === false || state === 2 ) ) {

			// Abort if not done already and return
			return jqXHR.abort();
		}

		// Aborting is no longer a cancellation
		strAbort = "abort";

		// Install callbacks on deferreds
		for ( i in { success: 1, error: 1, complete: 1 } ) {
			jqXHR[ i ]( s[ i ] );
		}

		// Get transport
		transport = inspectPrefiltersOrTransports( transports, s, options, jqXHR );

		// If no transport, we auto-abort
		if ( !transport ) {
			done( -1, "No Transport" );
		} else {
			jqXHR.readyState = 1;

			// Send global event
			if ( fireGlobals ) {
				globalEventContext.trigger( "ajaxSend", [ jqXHR, s ] );
			}

			// If request was aborted inside ajaxSend, stop there
			if ( state === 2 ) {
				return jqXHR;
			}

			// Timeout
			if ( s.async && s.timeout > 0 ) {
				timeoutTimer = window.setTimeout( function() {
					jqXHR.abort( "timeout" );
				}, s.timeout );
			}

			try {
				state = 1;
				transport.send( requestHeaders, done );
			} catch ( e ) {

				// Propagate exception as error if not done
				if ( state < 2 ) {
					done( -1, e );

				// Simply rethrow otherwise
				} else {
					throw e;
				}
			}
		}

		// Callback for when everything is done
		function done( status, nativeStatusText, responses, headers ) {
			var isSuccess, success, error, response, modified,
				statusText = nativeStatusText;

			// Called once
			if ( state === 2 ) {
				return;
			}

			// State is "done" now
			state = 2;

			// Clear timeout if it exists
			if ( timeoutTimer ) {
				window.clearTimeout( timeoutTimer );
			}

			// Dereference transport for early garbage collection
			// (no matter how long the jqXHR object will be used)
			transport = undefined;

			// Cache response headers
			responseHeadersString = headers || "";

			// Set readyState
			jqXHR.readyState = status > 0 ? 4 : 0;

			// Determine if successful
			isSuccess = status >= 200 && status < 300 || status === 304;

			// Get response data
			if ( responses ) {
				response = ajaxHandleResponses( s, jqXHR, responses );
			}

			// Convert no matter what (that way responseXXX fields are always set)
			response = ajaxConvert( s, response, jqXHR, isSuccess );

			// If successful, handle type chaining
			if ( isSuccess ) {

				// Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
				if ( s.ifModified ) {
					modified = jqXHR.getResponseHeader( "Last-Modified" );
					if ( modified ) {
						jQuery.lastModified[ cacheURL ] = modified;
					}
					modified = jqXHR.getResponseHeader( "etag" );
					if ( modified ) {
						jQuery.etag[ cacheURL ] = modified;
					}
				}

				// if no content
				if ( status === 204 || s.type === "HEAD" ) {
					statusText = "nocontent";

				// if not modified
				} else if ( status === 304 ) {
					statusText = "notmodified";

				// If we have data, let's convert it
				} else {
					statusText = response.state;
					success = response.data;
					error = response.error;
					isSuccess = !error;
				}
			} else {

				// Extract error from statusText and normalize for non-aborts
				error = statusText;
				if ( status || !statusText ) {
					statusText = "error";
					if ( status < 0 ) {
						status = 0;
					}
				}
			}

			// Set data for the fake xhr object
			jqXHR.status = status;
			jqXHR.statusText = ( nativeStatusText || statusText ) + "";

			// Success/Error
			if ( isSuccess ) {
				deferred.resolveWith( callbackContext, [ success, statusText, jqXHR ] );
			} else {
				deferred.rejectWith( callbackContext, [ jqXHR, statusText, error ] );
			}

			// Status-dependent callbacks
			jqXHR.statusCode( statusCode );
			statusCode = undefined;

			if ( fireGlobals ) {
				globalEventContext.trigger( isSuccess ? "ajaxSuccess" : "ajaxError",
					[ jqXHR, s, isSuccess ? success : error ] );
			}

			// Complete
			completeDeferred.fireWith( callbackContext, [ jqXHR, statusText ] );

			if ( fireGlobals ) {
				globalEventContext.trigger( "ajaxComplete", [ jqXHR, s ] );

				// Handle the global AJAX counter
				if ( !( --jQuery.active ) ) {
					jQuery.event.trigger( "ajaxStop" );
				}
			}
		}

		return jqXHR;
	},

	getJSON: function( url, data, callback ) {
		return jQuery.get( url, data, callback, "json" );
	},

	getScript: function( url, callback ) {
		return jQuery.get( url, undefined, callback, "script" );
	}
} );

jQuery.each( [ "get", "post" ], function( i, method ) {
	jQuery[ method ] = function( url, data, callback, type ) {

		// Shift arguments if data argument was omitted
		if ( jQuery.isFunction( data ) ) {
			type = type || callback;
			callback = data;
			data = undefined;
		}

		// The url can be an options object (which then must have .url)
		return jQuery.ajax( jQuery.extend( {
			url: url,
			type: method,
			dataType: type,
			data: data,
			success: callback
		}, jQuery.isPlainObject( url ) && url ) );
	};
} );


jQuery._evalUrl = function( url ) {
	return jQuery.ajax( {
		url: url,

		// Make this explicit, since user can override this through ajaxSetup (#11264)
		type: "GET",
		dataType: "script",
		async: false,
		global: false,
		"throws": true
	} );
};


jQuery.fn.extend( {
	wrapAll: function( html ) {
		var wrap;

		if ( jQuery.isFunction( html ) ) {
			return this.each( function( i ) {
				jQuery( this ).wrapAll( html.call( this, i ) );
			} );
		}

		if ( this[ 0 ] ) {

			// The elements to wrap the target around
			wrap = jQuery( html, this[ 0 ].ownerDocument ).eq( 0 ).clone( true );

			if ( this[ 0 ].parentNode ) {
				wrap.insertBefore( this[ 0 ] );
			}

			wrap.map( function() {
				var elem = this;

				while ( elem.firstElementChild ) {
					elem = elem.firstElementChild;
				}

				return elem;
			} ).append( this );
		}

		return this;
	},

	wrapInner: function( html ) {
		if ( jQuery.isFunction( html ) ) {
			return this.each( function( i ) {
				jQuery( this ).wrapInner( html.call( this, i ) );
			} );
		}

		return this.each( function() {
			var self = jQuery( this ),
				contents = self.contents();

			if ( contents.length ) {
				contents.wrapAll( html );

			} else {
				self.append( html );
			}
		} );
	},

	wrap: function( html ) {
		var isFunction = jQuery.isFunction( html );

		return this.each( function( i ) {
			jQuery( this ).wrapAll( isFunction ? html.call( this, i ) : html );
		} );
	},

	unwrap: function() {
		return this.parent().each( function() {
			if ( !jQuery.nodeName( this, "body" ) ) {
				jQuery( this ).replaceWith( this.childNodes );
			}
		} ).end();
	}
} );


jQuery.expr.filters.hidden = function( elem ) {
	return !jQuery.expr.filters.visible( elem );
};
jQuery.expr.filters.visible = function( elem ) {

	// Support: Opera <= 12.12
	// Opera reports offsetWidths and offsetHeights less than zero on some elements
	// Use OR instead of AND as the element is not visible if either is true
	// See tickets #10406 and #13132
	return elem.offsetWidth > 0 || elem.offsetHeight > 0 || elem.getClientRects().length > 0;
};




var r20 = /%20/g,
	rbracket = /\[\]$/,
	rCRLF = /\r?\n/g,
	rsubmitterTypes = /^(?:submit|button|image|reset|file)$/i,
	rsubmittable = /^(?:input|select|textarea|keygen)/i;

function buildParams( prefix, obj, traditional, add ) {
	var name;

	if ( jQuery.isArray( obj ) ) {

		// Serialize array item.
		jQuery.each( obj, function( i, v ) {
			if ( traditional || rbracket.test( prefix ) ) {

				// Treat each array item as a scalar.
				add( prefix, v );

			} else {

				// Item is non-scalar (array or object), encode its numeric index.
				buildParams(
					prefix + "[" + ( typeof v === "object" && v != null ? i : "" ) + "]",
					v,
					traditional,
					add
				);
			}
		} );

	} else if ( !traditional && jQuery.type( obj ) === "object" ) {

		// Serialize object item.
		for ( name in obj ) {
			buildParams( prefix + "[" + name + "]", obj[ name ], traditional, add );
		}

	} else {

		// Serialize scalar item.
		add( prefix, obj );
	}
}

// Serialize an array of form elements or a set of
// key/values into a query string
jQuery.param = function( a, traditional ) {
	var prefix,
		s = [],
		add = function( key, value ) {

			// If value is a function, invoke it and return its value
			value = jQuery.isFunction( value ) ? value() : ( value == null ? "" : value );
			s[ s.length ] = encodeURIComponent( key ) + "=" + encodeURIComponent( value );
		};

	// Set traditional to true for jQuery <= 1.3.2 behavior.
	if ( traditional === undefined ) {
		traditional = jQuery.ajaxSettings && jQuery.ajaxSettings.traditional;
	}

	// If an array was passed in, assume that it is an array of form elements.
	if ( jQuery.isArray( a ) || ( a.jquery && !jQuery.isPlainObject( a ) ) ) {

		// Serialize the form elements
		jQuery.each( a, function() {
			add( this.name, this.value );
		} );

	} else {

		// If traditional, encode the "old" way (the way 1.3.2 or older
		// did it), otherwise encode params recursively.
		for ( prefix in a ) {
			buildParams( prefix, a[ prefix ], traditional, add );
		}
	}

	// Return the resulting serialization
	return s.join( "&" ).replace( r20, "+" );
};

jQuery.fn.extend( {
	serialize: function() {
		return jQuery.param( this.serializeArray() );
	},
	serializeArray: function() {
		return this.map( function() {

			// Can add propHook for "elements" to filter or add form elements
			var elements = jQuery.prop( this, "elements" );
			return elements ? jQuery.makeArray( elements ) : this;
		} )
		.filter( function() {
			var type = this.type;

			// Use .is( ":disabled" ) so that fieldset[disabled] works
			return this.name && !jQuery( this ).is( ":disabled" ) &&
				rsubmittable.test( this.nodeName ) && !rsubmitterTypes.test( type ) &&
				( this.checked || !rcheckableType.test( type ) );
		} )
		.map( function( i, elem ) {
			var val = jQuery( this ).val();

			return val == null ?
				null :
				jQuery.isArray( val ) ?
					jQuery.map( val, function( val ) {
						return { name: elem.name, value: val.replace( rCRLF, "\r\n" ) };
					} ) :
					{ name: elem.name, value: val.replace( rCRLF, "\r\n" ) };
		} ).get();
	}
} );


jQuery.ajaxSettings.xhr = function() {
	try {
		return new window.XMLHttpRequest();
	} catch ( e ) {}
};

var xhrSuccessStatus = {

		// File protocol always yields status code 0, assume 200
		0: 200,

		// Support: IE9
		// #1450: sometimes IE returns 1223 when it should be 204
		1223: 204
	},
	xhrSupported = jQuery.ajaxSettings.xhr();

support.cors = !!xhrSupported && ( "withCredentials" in xhrSupported );
support.ajax = xhrSupported = !!xhrSupported;

jQuery.ajaxTransport( function( options ) {
	var callback, errorCallback;

	// Cross domain only allowed if supported through XMLHttpRequest
	if ( support.cors || xhrSupported && !options.crossDomain ) {
		return {
			send: function( headers, complete ) {
				var i,
					xhr = options.xhr();

				xhr.open(
					options.type,
					options.url,
					options.async,
					options.username,
					options.password
				);

				// Apply custom fields if provided
				if ( options.xhrFields ) {
					for ( i in options.xhrFields ) {
						xhr[ i ] = options.xhrFields[ i ];
					}
				}

				// Override mime type if needed
				if ( options.mimeType && xhr.overrideMimeType ) {
					xhr.overrideMimeType( options.mimeType );
				}

				// X-Requested-With header
				// For cross-domain requests, seeing as conditions for a preflight are
				// akin to a jigsaw puzzle, we simply never set it to be sure.
				// (it can always be set on a per-request basis or even using ajaxSetup)
				// For same-domain requests, won't change header if already provided.
				if ( !options.crossDomain && !headers[ "X-Requested-With" ] ) {
					headers[ "X-Requested-With" ] = "XMLHttpRequest";
				}

				// Set headers
				for ( i in headers ) {
					xhr.setRequestHeader( i, headers[ i ] );
				}

				// Callback
				callback = function( type ) {
					return function() {
						if ( callback ) {
							callback = errorCallback = xhr.onload =
								xhr.onerror = xhr.onabort = xhr.onreadystatechange = null;

							if ( type === "abort" ) {
								xhr.abort();
							} else if ( type === "error" ) {

								// Support: IE9
								// On a manual native abort, IE9 throws
								// errors on any property access that is not readyState
								if ( typeof xhr.status !== "number" ) {
									complete( 0, "error" );
								} else {
									complete(

										// File: protocol always yields status 0; see #8605, #14207
										xhr.status,
										xhr.statusText
									);
								}
							} else {
								complete(
									xhrSuccessStatus[ xhr.status ] || xhr.status,
									xhr.statusText,

									// Support: IE9 only
									// IE9 has no XHR2 but throws on binary (trac-11426)
									// For XHR2 non-text, let the caller handle it (gh-2498)
									( xhr.responseType || "text" ) !== "text"  ||
									typeof xhr.responseText !== "string" ?
										{ binary: xhr.response } :
										{ text: xhr.responseText },
									xhr.getAllResponseHeaders()
								);
							}
						}
					};
				};

				// Listen to events
				xhr.onload = callback();
				errorCallback = xhr.onerror = callback( "error" );

				// Support: IE9
				// Use onreadystatechange to replace onabort
				// to handle uncaught aborts
				if ( xhr.onabort !== undefined ) {
					xhr.onabort = errorCallback;
				} else {
					xhr.onreadystatechange = function() {

						// Check readyState before timeout as it changes
						if ( xhr.readyState === 4 ) {

							// Allow onerror to be called first,
							// but that will not handle a native abort
							// Also, save errorCallback to a variable
							// as xhr.onerror cannot be accessed
							window.setTimeout( function() {
								if ( callback ) {
									errorCallback();
								}
							} );
						}
					};
				}

				// Create the abort callback
				callback = callback( "abort" );

				try {

					// Do send the request (this may raise an exception)
					xhr.send( options.hasContent && options.data || null );
				} catch ( e ) {

					// #14683: Only rethrow if this hasn't been notified as an error yet
					if ( callback ) {
						throw e;
					}
				}
			},

			abort: function() {
				if ( callback ) {
					callback();
				}
			}
		};
	}
} );




// Install script dataType
jQuery.ajaxSetup( {
	accepts: {
		script: "text/javascript, application/javascript, " +
			"application/ecmascript, application/x-ecmascript"
	},
	contents: {
		script: /\b(?:java|ecma)script\b/
	},
	converters: {
		"text script": function( text ) {
			jQuery.globalEval( text );
			return text;
		}
	}
} );

// Handle cache's special case and crossDomain
jQuery.ajaxPrefilter( "script", function( s ) {
	if ( s.cache === undefined ) {
		s.cache = false;
	}
	if ( s.crossDomain ) {
		s.type = "GET";
	}
} );

// Bind script tag hack transport
jQuery.ajaxTransport( "script", function( s ) {

	// This transport only deals with cross domain requests
	if ( s.crossDomain ) {
		var script, callback;
		return {
			send: function( _, complete ) {
				script = jQuery( "<script>" ).prop( {
					charset: s.scriptCharset,
					src: s.url
				} ).on(
					"load error",
					callback = function( evt ) {
						script.remove();
						callback = null;
						if ( evt ) {
							complete( evt.type === "error" ? 404 : 200, evt.type );
						}
					}
				);

				// Use native DOM manipulation to avoid our domManip AJAX trickery
				document.head.appendChild( script[ 0 ] );
			},
			abort: function() {
				if ( callback ) {
					callback();
				}
			}
		};
	}
} );




var oldCallbacks = [],
	rjsonp = /(=)\?(?=&|$)|\?\?/;

// Default jsonp settings
jQuery.ajaxSetup( {
	jsonp: "callback",
	jsonpCallback: function() {
		var callback = oldCallbacks.pop() || ( jQuery.expando + "_" + ( nonce++ ) );
		this[ callback ] = true;
		return callback;
	}
} );

// Detect, normalize options and install callbacks for jsonp requests
jQuery.ajaxPrefilter( "json jsonp", function( s, originalSettings, jqXHR ) {

	var callbackName, overwritten, responseContainer,
		jsonProp = s.jsonp !== false && ( rjsonp.test( s.url ) ?
			"url" :
			typeof s.data === "string" &&
				( s.contentType || "" )
					.indexOf( "application/x-www-form-urlencoded" ) === 0 &&
				rjsonp.test( s.data ) && "data"
		);

	// Handle iff the expected data type is "jsonp" or we have a parameter to set
	if ( jsonProp || s.dataTypes[ 0 ] === "jsonp" ) {

		// Get callback name, remembering preexisting value associated with it
		callbackName = s.jsonpCallback = jQuery.isFunction( s.jsonpCallback ) ?
			s.jsonpCallback() :
			s.jsonpCallback;

		// Insert callback into url or form data
		if ( jsonProp ) {
			s[ jsonProp ] = s[ jsonProp ].replace( rjsonp, "$1" + callbackName );
		} else if ( s.jsonp !== false ) {
			s.url += ( rquery.test( s.url ) ? "&" : "?" ) + s.jsonp + "=" + callbackName;
		}

		// Use data converter to retrieve json after script execution
		s.converters[ "script json" ] = function() {
			if ( !responseContainer ) {
				jQuery.error( callbackName + " was not called" );
			}
			return responseContainer[ 0 ];
		};

		// Force json dataType
		s.dataTypes[ 0 ] = "json";

		// Install callback
		overwritten = window[ callbackName ];
		window[ callbackName ] = function() {
			responseContainer = arguments;
		};

		// Clean-up function (fires after converters)
		jqXHR.always( function() {

			// If previous value didn't exist - remove it
			if ( overwritten === undefined ) {
				jQuery( window ).removeProp( callbackName );

			// Otherwise restore preexisting value
			} else {
				window[ callbackName ] = overwritten;
			}

			// Save back as free
			if ( s[ callbackName ] ) {

				// Make sure that re-using the options doesn't screw things around
				s.jsonpCallback = originalSettings.jsonpCallback;

				// Save the callback name for future use
				oldCallbacks.push( callbackName );
			}

			// Call if it was a function and we have a response
			if ( responseContainer && jQuery.isFunction( overwritten ) ) {
				overwritten( responseContainer[ 0 ] );
			}

			responseContainer = overwritten = undefined;
		} );

		// Delegate to script
		return "script";
	}
} );




// Argument "data" should be string of html
// context (optional): If specified, the fragment will be created in this context,
// defaults to document
// keepScripts (optional): If true, will include scripts passed in the html string
jQuery.parseHTML = function( data, context, keepScripts ) {
	if ( !data || typeof data !== "string" ) {
		return null;
	}
	if ( typeof context === "boolean" ) {
		keepScripts = context;
		context = false;
	}
	context = context || document;

	var parsed = rsingleTag.exec( data ),
		scripts = !keepScripts && [];

	// Single tag
	if ( parsed ) {
		return [ context.createElement( parsed[ 1 ] ) ];
	}

	parsed = buildFragment( [ data ], context, scripts );

	if ( scripts && scripts.length ) {
		jQuery( scripts ).remove();
	}

	return jQuery.merge( [], parsed.childNodes );
};


// Keep a copy of the old load method
var _load = jQuery.fn.load;

/**
 * Load a url into a page
 */
jQuery.fn.load = function( url, params, callback ) {
	if ( typeof url !== "string" && _load ) {
		return _load.apply( this, arguments );
	}

	var selector, type, response,
		self = this,
		off = url.indexOf( " " );

	if ( off > -1 ) {
		selector = jQuery.trim( url.slice( off ) );
		url = url.slice( 0, off );
	}

	// If it's a function
	if ( jQuery.isFunction( params ) ) {

		// We assume that it's the callback
		callback = params;
		params = undefined;

	// Otherwise, build a param string
	} else if ( params && typeof params === "object" ) {
		type = "POST";
	}

	// If we have elements to modify, make the request
	if ( self.length > 0 ) {
		jQuery.ajax( {
			url: url,

			// If "type" variable is undefined, then "GET" method will be used.
			// Make value of this field explicit since
			// user can override it through ajaxSetup method
			type: type || "GET",
			dataType: "html",
			data: params
		} ).done( function( responseText ) {

			// Save response for use in complete callback
			response = arguments;

			self.html( selector ?

				// If a selector was specified, locate the right elements in a dummy div
				// Exclude scripts to avoid IE 'Permission Denied' errors
				jQuery( "<div>" ).append( jQuery.parseHTML( responseText ) ).find( selector ) :

				// Otherwise use the full result
				responseText );

		// If the request succeeds, this function gets "data", "status", "jqXHR"
		// but they are ignored because response was set above.
		// If it fails, this function gets "jqXHR", "status", "error"
		} ).always( callback && function( jqXHR, status ) {
			self.each( function() {
				callback.apply( this, response || [ jqXHR.responseText, status, jqXHR ] );
			} );
		} );
	}

	return this;
};




// Attach a bunch of functions for handling common AJAX events
jQuery.each( [
	"ajaxStart",
	"ajaxStop",
	"ajaxComplete",
	"ajaxError",
	"ajaxSuccess",
	"ajaxSend"
], function( i, type ) {
	jQuery.fn[ type ] = function( fn ) {
		return this.on( type, fn );
	};
} );




jQuery.expr.filters.animated = function( elem ) {
	return jQuery.grep( jQuery.timers, function( fn ) {
		return elem === fn.elem;
	} ).length;
};




/**
 * Gets a window from an element
 */
function getWindow( elem ) {
	return jQuery.isWindow( elem ) ? elem : elem.nodeType === 9 && elem.defaultView;
}

jQuery.offset = {
	setOffset: function( elem, options, i ) {
		var curPosition, curLeft, curCSSTop, curTop, curOffset, curCSSLeft, calculatePosition,
			position = jQuery.css( elem, "position" ),
			curElem = jQuery( elem ),
			props = {};

		// Set position first, in-case top/left are set even on static elem
		if ( position === "static" ) {
			elem.style.position = "relative";
		}

		curOffset = curElem.offset();
		curCSSTop = jQuery.css( elem, "top" );
		curCSSLeft = jQuery.css( elem, "left" );
		calculatePosition = ( position === "absolute" || position === "fixed" ) &&
			( curCSSTop + curCSSLeft ).indexOf( "auto" ) > -1;

		// Need to be able to calculate position if either
		// top or left is auto and position is either absolute or fixed
		if ( calculatePosition ) {
			curPosition = curElem.position();
			curTop = curPosition.top;
			curLeft = curPosition.left;

		} else {
			curTop = parseFloat( curCSSTop ) || 0;
			curLeft = parseFloat( curCSSLeft ) || 0;
		}

		if ( jQuery.isFunction( options ) ) {

			// Use jQuery.extend here to allow modification of coordinates argument (gh-1848)
			options = options.call( elem, i, jQuery.extend( {}, curOffset ) );
		}

		if ( options.top != null ) {
			props.top = ( options.top - curOffset.top ) + curTop;
		}
		if ( options.left != null ) {
			props.left = ( options.left - curOffset.left ) + curLeft;
		}

		if ( "using" in options ) {
			options.using.call( elem, props );

		} else {
			curElem.css( props );
		}
	}
};

jQuery.fn.extend( {
	offset: function( options ) {
		if ( arguments.length ) {
			return options === undefined ?
				this :
				this.each( function( i ) {
					jQuery.offset.setOffset( this, options, i );
				} );
		}

		var docElem, win,
			elem = this[ 0 ],
			box = { top: 0, left: 0 },
			doc = elem && elem.ownerDocument;

		if ( !doc ) {
			return;
		}

		docElem = doc.documentElement;

		// Make sure it's not a disconnected DOM node
		if ( !jQuery.contains( docElem, elem ) ) {
			return box;
		}

		box = elem.getBoundingClientRect();
		win = getWindow( doc );
		return {
			top: box.top + win.pageYOffset - docElem.clientTop,
			left: box.left + win.pageXOffset - docElem.clientLeft
		};
	},

	position: function() {
		if ( !this[ 0 ] ) {
			return;
		}

		var offsetParent, offset,
			elem = this[ 0 ],
			parentOffset = { top: 0, left: 0 };

		// Fixed elements are offset from window (parentOffset = {top:0, left: 0},
		// because it is its only offset parent
		if ( jQuery.css( elem, "position" ) === "fixed" ) {

			// Assume getBoundingClientRect is there when computed position is fixed
			offset = elem.getBoundingClientRect();

		} else {

			// Get *real* offsetParent
			offsetParent = this.offsetParent();

			// Get correct offsets
			offset = this.offset();
			if ( !jQuery.nodeName( offsetParent[ 0 ], "html" ) ) {
				parentOffset = offsetParent.offset();
			}

			// Add offsetParent borders
			parentOffset.top += jQuery.css( offsetParent[ 0 ], "borderTopWidth", true );
			parentOffset.left += jQuery.css( offsetParent[ 0 ], "borderLeftWidth", true );
		}

		// Subtract parent offsets and element margins
		return {
			top: offset.top - parentOffset.top - jQuery.css( elem, "marginTop", true ),
			left: offset.left - parentOffset.left - jQuery.css( elem, "marginLeft", true )
		};
	},

	// This method will return documentElement in the following cases:
	// 1) For the element inside the iframe without offsetParent, this method will return
	//    documentElement of the parent window
	// 2) For the hidden or detached element
	// 3) For body or html element, i.e. in case of the html node - it will return itself
	//
	// but those exceptions were never presented as a real life use-cases
	// and might be considered as more preferable results.
	//
	// This logic, however, is not guaranteed and can change at any point in the future
	offsetParent: function() {
		return this.map( function() {
			var offsetParent = this.offsetParent;

			while ( offsetParent && jQuery.css( offsetParent, "position" ) === "static" ) {
				offsetParent = offsetParent.offsetParent;
			}

			return offsetParent || documentElement;
		} );
	}
} );

// Create scrollLeft and scrollTop methods
jQuery.each( { scrollLeft: "pageXOffset", scrollTop: "pageYOffset" }, function( method, prop ) {
	var top = "pageYOffset" === prop;

	jQuery.fn[ method ] = function( val ) {
		return access( this, function( elem, method, val ) {
			var win = getWindow( elem );

			if ( val === undefined ) {
				return win ? win[ prop ] : elem[ method ];
			}

			if ( win ) {
				win.scrollTo(
					!top ? val : win.pageXOffset,
					top ? val : win.pageYOffset
				);

			} else {
				elem[ method ] = val;
			}
		}, method, val, arguments.length );
	};
} );

// Support: Safari<7-8+, Chrome<37-44+
// Add the top/left cssHooks using jQuery.fn.position
// Webkit bug: https://bugs.webkit.org/show_bug.cgi?id=29084
// Blink bug: https://code.google.com/p/chromium/issues/detail?id=229280
// getComputedStyle returns percent when specified for top/left/bottom/right;
// rather than make the css module depend on the offset module, just check for it here
jQuery.each( [ "top", "left" ], function( i, prop ) {
	jQuery.cssHooks[ prop ] = addGetHookIf( support.pixelPosition,
		function( elem, computed ) {
			if ( computed ) {
				computed = curCSS( elem, prop );

				// If curCSS returns percentage, fallback to offset
				return rnumnonpx.test( computed ) ?
					jQuery( elem ).position()[ prop ] + "px" :
					computed;
			}
		}
	);
} );


// Create innerHeight, innerWidth, height, width, outerHeight and outerWidth methods
jQuery.each( { Height: "height", Width: "width" }, function( name, type ) {
	jQuery.each( { padding: "inner" + name, content: type, "": "outer" + name },
		function( defaultExtra, funcName ) {

		// Margin is only for outerHeight, outerWidth
		jQuery.fn[ funcName ] = function( margin, value ) {
			var chainable = arguments.length && ( defaultExtra || typeof margin !== "boolean" ),
				extra = defaultExtra || ( margin === true || value === true ? "margin" : "border" );

			return access( this, function( elem, type, value ) {
				var doc;

				if ( jQuery.isWindow( elem ) ) {

					// As of 5/8/2012 this will yield incorrect results for Mobile Safari, but there
					// isn't a whole lot we can do. See pull request at this URL for discussion:
					// https://github.com/jquery/jquery/pull/764
					return elem.document.documentElement[ "client" + name ];
				}

				// Get document width or height
				if ( elem.nodeType === 9 ) {
					doc = elem.documentElement;

					// Either scroll[Width/Height] or offset[Width/Height] or client[Width/Height],
					// whichever is greatest
					return Math.max(
						elem.body[ "scroll" + name ], doc[ "scroll" + name ],
						elem.body[ "offset" + name ], doc[ "offset" + name ],
						doc[ "client" + name ]
					);
				}

				return value === undefined ?

					// Get width or height on the element, requesting but not forcing parseFloat
					jQuery.css( elem, type, extra ) :

					// Set width or height on the element
					jQuery.style( elem, type, value, extra );
			}, type, chainable ? margin : undefined, chainable, null );
		};
	} );
} );


jQuery.fn.extend( {

	bind: function( types, data, fn ) {
		return this.on( types, null, data, fn );
	},
	unbind: function( types, fn ) {
		return this.off( types, null, fn );
	},

	delegate: function( selector, types, data, fn ) {
		return this.on( types, selector, data, fn );
	},
	undelegate: function( selector, types, fn ) {

		// ( namespace ) or ( selector, types [, fn] )
		return arguments.length === 1 ?
			this.off( selector, "**" ) :
			this.off( types, selector || "**", fn );
	},
	size: function() {
		return this.length;
	}
} );

jQuery.fn.andSelf = jQuery.fn.addBack;




// Register as a named AMD module, since jQuery can be concatenated with other
// files that may use define, but not via a proper concatenation script that
// understands anonymous AMD modules. A named AMD is safest and most robust
// way to register. Lowercase jquery is used because AMD module names are
// derived from file names, and jQuery is normally delivered in a lowercase
// file name. Do this after creating the global so that if an AMD module wants
// to call noConflict to hide this version of jQuery, it will work.

// Note that for maximum portability, libraries that are not jQuery should
// declare themselves as anonymous modules, and avoid setting a global if an
// AMD loader is present. jQuery is a special case. For more information, see
// https://github.com/jrburke/requirejs/wiki/Updating-existing-libraries#wiki-anon

if ( typeof define === "function" && define.amd ) {
	define( "jquery", [], function() {
		return jQuery;
	} );
}



var

	// Map over jQuery in case of overwrite
	_jQuery = window.jQuery,

	// Map over the $ in case of overwrite
	_$ = window.$;

jQuery.noConflict = function( deep ) {
	if ( window.$ === jQuery ) {
		window.$ = _$;
	}

	if ( deep && window.jQuery === jQuery ) {
		window.jQuery = _jQuery;
	}

	return jQuery;
};

// Expose jQuery and $ identifiers, even in AMD
// (#7102#comment:10, https://github.com/jquery/jquery/pull/557)
// and CommonJS for browser emulators (#13566)
if ( !noGlobal ) {
	window.jQuery = window.$ = jQuery;
}

return jQuery;
}));

/*global define */
define('jquery.noconflict',['jquery'], function (jq) {
    return jq.noConflict( true );
});

/**
 * @license
 * Lodash <https://lodash.com/>
 * Copyright JS Foundation and other contributors <https://js.foundation/>
 * Released under MIT license <https://lodash.com/license>
 * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
 * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
 */
;(function() {

  /** Used as a safe reference for `undefined` in pre-ES5 environments. */
  var undefined;

  /** Used as the semantic version number. */
  var VERSION = '4.17.4';

  /** Used as the size to enable large array optimizations. */
  var LARGE_ARRAY_SIZE = 200;

  /** Error message constants. */
  var CORE_ERROR_TEXT = 'Unsupported core-js use. Try https://npms.io/search?q=ponyfill.',
      FUNC_ERROR_TEXT = 'Expected a function';

  /** Used to stand-in for `undefined` hash values. */
  var HASH_UNDEFINED = '__lodash_hash_undefined__';

  /** Used as the maximum memoize cache size. */
  var MAX_MEMOIZE_SIZE = 500;

  /** Used as the internal argument placeholder. */
  var PLACEHOLDER = '__lodash_placeholder__';

  /** Used to compose bitmasks for cloning. */
  var CLONE_DEEP_FLAG = 1,
      CLONE_FLAT_FLAG = 2,
      CLONE_SYMBOLS_FLAG = 4;

  /** Used to compose bitmasks for value comparisons. */
  var COMPARE_PARTIAL_FLAG = 1,
      COMPARE_UNORDERED_FLAG = 2;

  /** Used to compose bitmasks for function metadata. */
  var WRAP_BIND_FLAG = 1,
      WRAP_BIND_KEY_FLAG = 2,
      WRAP_CURRY_BOUND_FLAG = 4,
      WRAP_CURRY_FLAG = 8,
      WRAP_CURRY_RIGHT_FLAG = 16,
      WRAP_PARTIAL_FLAG = 32,
      WRAP_PARTIAL_RIGHT_FLAG = 64,
      WRAP_ARY_FLAG = 128,
      WRAP_REARG_FLAG = 256,
      WRAP_FLIP_FLAG = 512;

  /** Used as default options for `_.truncate`. */
  var DEFAULT_TRUNC_LENGTH = 30,
      DEFAULT_TRUNC_OMISSION = '...';

  /** Used to detect hot functions by number of calls within a span of milliseconds. */
  var HOT_COUNT = 800,
      HOT_SPAN = 16;

  /** Used to indicate the type of lazy iteratees. */
  var LAZY_FILTER_FLAG = 1,
      LAZY_MAP_FLAG = 2,
      LAZY_WHILE_FLAG = 3;

  /** Used as references for various `Number` constants. */
  var INFINITY = 1 / 0,
      MAX_SAFE_INTEGER = 9007199254740991,
      MAX_INTEGER = 1.7976931348623157e+308,
      NAN = 0 / 0;

  /** Used as references for the maximum length and index of an array. */
  var MAX_ARRAY_LENGTH = 4294967295,
      MAX_ARRAY_INDEX = MAX_ARRAY_LENGTH - 1,
      HALF_MAX_ARRAY_LENGTH = MAX_ARRAY_LENGTH >>> 1;

  /** Used to associate wrap methods with their bit flags. */
  var wrapFlags = [
    ['ary', WRAP_ARY_FLAG],
    ['bind', WRAP_BIND_FLAG],
    ['bindKey', WRAP_BIND_KEY_FLAG],
    ['curry', WRAP_CURRY_FLAG],
    ['curryRight', WRAP_CURRY_RIGHT_FLAG],
    ['flip', WRAP_FLIP_FLAG],
    ['partial', WRAP_PARTIAL_FLAG],
    ['partialRight', WRAP_PARTIAL_RIGHT_FLAG],
    ['rearg', WRAP_REARG_FLAG]
  ];

  /** `Object#toString` result references. */
  var argsTag = '[object Arguments]',
      arrayTag = '[object Array]',
      asyncTag = '[object AsyncFunction]',
      boolTag = '[object Boolean]',
      dateTag = '[object Date]',
      domExcTag = '[object DOMException]',
      errorTag = '[object Error]',
      funcTag = '[object Function]',
      genTag = '[object GeneratorFunction]',
      mapTag = '[object Map]',
      numberTag = '[object Number]',
      nullTag = '[object Null]',
      objectTag = '[object Object]',
      promiseTag = '[object Promise]',
      proxyTag = '[object Proxy]',
      regexpTag = '[object RegExp]',
      setTag = '[object Set]',
      stringTag = '[object String]',
      symbolTag = '[object Symbol]',
      undefinedTag = '[object Undefined]',
      weakMapTag = '[object WeakMap]',
      weakSetTag = '[object WeakSet]';

  var arrayBufferTag = '[object ArrayBuffer]',
      dataViewTag = '[object DataView]',
      float32Tag = '[object Float32Array]',
      float64Tag = '[object Float64Array]',
      int8Tag = '[object Int8Array]',
      int16Tag = '[object Int16Array]',
      int32Tag = '[object Int32Array]',
      uint8Tag = '[object Uint8Array]',
      uint8ClampedTag = '[object Uint8ClampedArray]',
      uint16Tag = '[object Uint16Array]',
      uint32Tag = '[object Uint32Array]';

  /** Used to match empty string literals in compiled template source. */
  var reEmptyStringLeading = /\b__p \+= '';/g,
      reEmptyStringMiddle = /\b(__p \+=) '' \+/g,
      reEmptyStringTrailing = /(__e\(.*?\)|\b__t\)) \+\n'';/g;

  /** Used to match HTML entities and HTML characters. */
  var reEscapedHtml = /&(?:amp|lt|gt|quot|#39);/g,
      reUnescapedHtml = /[&<>"']/g,
      reHasEscapedHtml = RegExp(reEscapedHtml.source),
      reHasUnescapedHtml = RegExp(reUnescapedHtml.source);

  /** Used to match template delimiters. */
  var reEscape = /<%-([\s\S]+?)%>/g,
      reEvaluate = /<%([\s\S]+?)%>/g,
      reInterpolate = /<%=([\s\S]+?)%>/g;

  /** Used to match property names within property paths. */
  var reIsDeepProp = /\.|\[(?:[^[\]]*|(["'])(?:(?!\1)[^\\]|\\.)*?\1)\]/,
      reIsPlainProp = /^\w*$/,
      reLeadingDot = /^\./,
      rePropName = /[^.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\\]|\\.)*?)\2)\]|(?=(?:\.|\[\])(?:\.|\[\]|$))/g;

  /**
   * Used to match `RegExp`
   * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns).
   */
  var reRegExpChar = /[\\^$.*+?()[\]{}|]/g,
      reHasRegExpChar = RegExp(reRegExpChar.source);

  /** Used to match leading and trailing whitespace. */
  var reTrim = /^\s+|\s+$/g,
      reTrimStart = /^\s+/,
      reTrimEnd = /\s+$/;

  /** Used to match wrap detail comments. */
  var reWrapComment = /\{(?:\n\/\* \[wrapped with .+\] \*\/)?\n?/,
      reWrapDetails = /\{\n\/\* \[wrapped with (.+)\] \*/,
      reSplitDetails = /,? & /;

  /** Used to match words composed of alphanumeric characters. */
  var reAsciiWord = /[^\x00-\x2f\x3a-\x40\x5b-\x60\x7b-\x7f]+/g;

  /** Used to match backslashes in property paths. */
  var reEscapeChar = /\\(\\)?/g;

  /**
   * Used to match
   * [ES template delimiters](http://ecma-international.org/ecma-262/7.0/#sec-template-literal-lexical-components).
   */
  var reEsTemplate = /\$\{([^\\}]*(?:\\.[^\\}]*)*)\}/g;

  /** Used to match `RegExp` flags from their coerced string values. */
  var reFlags = /\w*$/;

  /** Used to detect bad signed hexadecimal string values. */
  var reIsBadHex = /^[-+]0x[0-9a-f]+$/i;

  /** Used to detect binary string values. */
  var reIsBinary = /^0b[01]+$/i;

  /** Used to detect host constructors (Safari). */
  var reIsHostCtor = /^\[object .+?Constructor\]$/;

  /** Used to detect octal string values. */
  var reIsOctal = /^0o[0-7]+$/i;

  /** Used to detect unsigned integer values. */
  var reIsUint = /^(?:0|[1-9]\d*)$/;

  /** Used to match Latin Unicode letters (excluding mathematical operators). */
  var reLatin = /[\xc0-\xd6\xd8-\xf6\xf8-\xff\u0100-\u017f]/g;

  /** Used to ensure capturing order of template delimiters. */
  var reNoMatch = /($^)/;

  /** Used to match unescaped characters in compiled string literals. */
  var reUnescapedString = /['\n\r\u2028\u2029\\]/g;

  /** Used to compose unicode character classes. */
  var rsAstralRange = '\\ud800-\\udfff',
      rsComboMarksRange = '\\u0300-\\u036f',
      reComboHalfMarksRange = '\\ufe20-\\ufe2f',
      rsComboSymbolsRange = '\\u20d0-\\u20ff',
      rsComboRange = rsComboMarksRange + reComboHalfMarksRange + rsComboSymbolsRange,
      rsDingbatRange = '\\u2700-\\u27bf',
      rsLowerRange = 'a-z\\xdf-\\xf6\\xf8-\\xff',
      rsMathOpRange = '\\xac\\xb1\\xd7\\xf7',
      rsNonCharRange = '\\x00-\\x2f\\x3a-\\x40\\x5b-\\x60\\x7b-\\xbf',
      rsPunctuationRange = '\\u2000-\\u206f',
      rsSpaceRange = ' \\t\\x0b\\f\\xa0\\ufeff\\n\\r\\u2028\\u2029\\u1680\\u180e\\u2000\\u2001\\u2002\\u2003\\u2004\\u2005\\u2006\\u2007\\u2008\\u2009\\u200a\\u202f\\u205f\\u3000',
      rsUpperRange = 'A-Z\\xc0-\\xd6\\xd8-\\xde',
      rsVarRange = '\\ufe0e\\ufe0f',
      rsBreakRange = rsMathOpRange + rsNonCharRange + rsPunctuationRange + rsSpaceRange;

  /** Used to compose unicode capture groups. */
  var rsApos = "['\u2019]",
      rsAstral = '[' + rsAstralRange + ']',
      rsBreak = '[' + rsBreakRange + ']',
      rsCombo = '[' + rsComboRange + ']',
      rsDigits = '\\d+',
      rsDingbat = '[' + rsDingbatRange + ']',
      rsLower = '[' + rsLowerRange + ']',
      rsMisc = '[^' + rsAstralRange + rsBreakRange + rsDigits + rsDingbatRange + rsLowerRange + rsUpperRange + ']',
      rsFitz = '\\ud83c[\\udffb-\\udfff]',
      rsModifier = '(?:' + rsCombo + '|' + rsFitz + ')',
      rsNonAstral = '[^' + rsAstralRange + ']',
      rsRegional = '(?:\\ud83c[\\udde6-\\uddff]){2}',
      rsSurrPair = '[\\ud800-\\udbff][\\udc00-\\udfff]',
      rsUpper = '[' + rsUpperRange + ']',
      rsZWJ = '\\u200d';

  /** Used to compose unicode regexes. */
  var rsMiscLower = '(?:' + rsLower + '|' + rsMisc + ')',
      rsMiscUpper = '(?:' + rsUpper + '|' + rsMisc + ')',
      rsOptContrLower = '(?:' + rsApos + '(?:d|ll|m|re|s|t|ve))?',
      rsOptContrUpper = '(?:' + rsApos + '(?:D|LL|M|RE|S|T|VE))?',
      reOptMod = rsModifier + '?',
      rsOptVar = '[' + rsVarRange + ']?',
      rsOptJoin = '(?:' + rsZWJ + '(?:' + [rsNonAstral, rsRegional, rsSurrPair].join('|') + ')' + rsOptVar + reOptMod + ')*',
      rsOrdLower = '\\d*(?:(?:1st|2nd|3rd|(?![123])\\dth)\\b)',
      rsOrdUpper = '\\d*(?:(?:1ST|2ND|3RD|(?![123])\\dTH)\\b)',
      rsSeq = rsOptVar + reOptMod + rsOptJoin,
      rsEmoji = '(?:' + [rsDingbat, rsRegional, rsSurrPair].join('|') + ')' + rsSeq,
      rsSymbol = '(?:' + [rsNonAstral + rsCombo + '?', rsCombo, rsRegional, rsSurrPair, rsAstral].join('|') + ')';

  /** Used to match apostrophes. */
  var reApos = RegExp(rsApos, 'g');

  /**
   * Used to match [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks) and
   * [combining diacritical marks for symbols](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks_for_Symbols).
   */
  var reComboMark = RegExp(rsCombo, 'g');

  /** Used to match [string symbols](https://mathiasbynens.be/notes/javascript-unicode). */
  var reUnicode = RegExp(rsFitz + '(?=' + rsFitz + ')|' + rsSymbol + rsSeq, 'g');

  /** Used to match complex or compound words. */
  var reUnicodeWord = RegExp([
    rsUpper + '?' + rsLower + '+' + rsOptContrLower + '(?=' + [rsBreak, rsUpper, '$'].join('|') + ')',
    rsMiscUpper + '+' + rsOptContrUpper + '(?=' + [rsBreak, rsUpper + rsMiscLower, '$'].join('|') + ')',
    rsUpper + '?' + rsMiscLower + '+' + rsOptContrLower,
    rsUpper + '+' + rsOptContrUpper,
    rsOrdUpper,
    rsOrdLower,
    rsDigits,
    rsEmoji
  ].join('|'), 'g');

  /** Used to detect strings with [zero-width joiners or code points from the astral planes](http://eev.ee/blog/2015/09/12/dark-corners-of-unicode/). */
  var reHasUnicode = RegExp('[' + rsZWJ + rsAstralRange  + rsComboRange + rsVarRange + ']');

  /** Used to detect strings that need a more robust regexp to match words. */
  var reHasUnicodeWord = /[a-z][A-Z]|[A-Z]{2,}[a-z]|[0-9][a-zA-Z]|[a-zA-Z][0-9]|[^a-zA-Z0-9 ]/;

  /** Used to assign default `context` object properties. */
  var contextProps = [
    'Array', 'Buffer', 'DataView', 'Date', 'Error', 'Float32Array', 'Float64Array',
    'Function', 'Int8Array', 'Int16Array', 'Int32Array', 'Map', 'Math', 'Object',
    'Promise', 'RegExp', 'Set', 'String', 'Symbol', 'TypeError', 'Uint8Array',
    'Uint8ClampedArray', 'Uint16Array', 'Uint32Array', 'WeakMap',
    '_', 'clearTimeout', 'isFinite', 'parseInt', 'setTimeout'
  ];

  /** Used to make template sourceURLs easier to identify. */
  var templateCounter = -1;

  /** Used to identify `toStringTag` values of typed arrays. */
  var typedArrayTags = {};
  typedArrayTags[float32Tag] = typedArrayTags[float64Tag] =
  typedArrayTags[int8Tag] = typedArrayTags[int16Tag] =
  typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] =
  typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] =
  typedArrayTags[uint32Tag] = true;
  typedArrayTags[argsTag] = typedArrayTags[arrayTag] =
  typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] =
  typedArrayTags[dataViewTag] = typedArrayTags[dateTag] =
  typedArrayTags[errorTag] = typedArrayTags[funcTag] =
  typedArrayTags[mapTag] = typedArrayTags[numberTag] =
  typedArrayTags[objectTag] = typedArrayTags[regexpTag] =
  typedArrayTags[setTag] = typedArrayTags[stringTag] =
  typedArrayTags[weakMapTag] = false;

  /** Used to identify `toStringTag` values supported by `_.clone`. */
  var cloneableTags = {};
  cloneableTags[argsTag] = cloneableTags[arrayTag] =
  cloneableTags[arrayBufferTag] = cloneableTags[dataViewTag] =
  cloneableTags[boolTag] = cloneableTags[dateTag] =
  cloneableTags[float32Tag] = cloneableTags[float64Tag] =
  cloneableTags[int8Tag] = cloneableTags[int16Tag] =
  cloneableTags[int32Tag] = cloneableTags[mapTag] =
  cloneableTags[numberTag] = cloneableTags[objectTag] =
  cloneableTags[regexpTag] = cloneableTags[setTag] =
  cloneableTags[stringTag] = cloneableTags[symbolTag] =
  cloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] =
  cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true;
  cloneableTags[errorTag] = cloneableTags[funcTag] =
  cloneableTags[weakMapTag] = false;

  /** Used to map Latin Unicode letters to basic Latin letters. */
  var deburredLetters = {
    // Latin-1 Supplement block.
    '\xc0': 'A',  '\xc1': 'A', '\xc2': 'A', '\xc3': 'A', '\xc4': 'A', '\xc5': 'A',
    '\xe0': 'a',  '\xe1': 'a', '\xe2': 'a', '\xe3': 'a', '\xe4': 'a', '\xe5': 'a',
    '\xc7': 'C',  '\xe7': 'c',
    '\xd0': 'D',  '\xf0': 'd',
    '\xc8': 'E',  '\xc9': 'E', '\xca': 'E', '\xcb': 'E',
    '\xe8': 'e',  '\xe9': 'e', '\xea': 'e', '\xeb': 'e',
    '\xcc': 'I',  '\xcd': 'I', '\xce': 'I', '\xcf': 'I',
    '\xec': 'i',  '\xed': 'i', '\xee': 'i', '\xef': 'i',
    '\xd1': 'N',  '\xf1': 'n',
    '\xd2': 'O',  '\xd3': 'O', '\xd4': 'O', '\xd5': 'O', '\xd6': 'O', '\xd8': 'O',
    '\xf2': 'o',  '\xf3': 'o', '\xf4': 'o', '\xf5': 'o', '\xf6': 'o', '\xf8': 'o',
    '\xd9': 'U',  '\xda': 'U', '\xdb': 'U', '\xdc': 'U',
    '\xf9': 'u',  '\xfa': 'u', '\xfb': 'u', '\xfc': 'u',
    '\xdd': 'Y',  '\xfd': 'y', '\xff': 'y',
    '\xc6': 'Ae', '\xe6': 'ae',
    '\xde': 'Th', '\xfe': 'th',
    '\xdf': 'ss',
    // Latin Extended-A block.
    '\u0100': 'A',  '\u0102': 'A', '\u0104': 'A',
    '\u0101': 'a',  '\u0103': 'a', '\u0105': 'a',
    '\u0106': 'C',  '\u0108': 'C', '\u010a': 'C', '\u010c': 'C',
    '\u0107': 'c',  '\u0109': 'c', '\u010b': 'c', '\u010d': 'c',
    '\u010e': 'D',  '\u0110': 'D', '\u010f': 'd', '\u0111': 'd',
    '\u0112': 'E',  '\u0114': 'E', '\u0116': 'E', '\u0118': 'E', '\u011a': 'E',
    '\u0113': 'e',  '\u0115': 'e', '\u0117': 'e', '\u0119': 'e', '\u011b': 'e',
    '\u011c': 'G',  '\u011e': 'G', '\u0120': 'G', '\u0122': 'G',
    '\u011d': 'g',  '\u011f': 'g', '\u0121': 'g', '\u0123': 'g',
    '\u0124': 'H',  '\u0126': 'H', '\u0125': 'h', '\u0127': 'h',
    '\u0128': 'I',  '\u012a': 'I', '\u012c': 'I', '\u012e': 'I', '\u0130': 'I',
    '\u0129': 'i',  '\u012b': 'i', '\u012d': 'i', '\u012f': 'i', '\u0131': 'i',
    '\u0134': 'J',  '\u0135': 'j',
    '\u0136': 'K',  '\u0137': 'k', '\u0138': 'k',
    '\u0139': 'L',  '\u013b': 'L', '\u013d': 'L', '\u013f': 'L', '\u0141': 'L',
    '\u013a': 'l',  '\u013c': 'l', '\u013e': 'l', '\u0140': 'l', '\u0142': 'l',
    '\u0143': 'N',  '\u0145': 'N', '\u0147': 'N', '\u014a': 'N',
    '\u0144': 'n',  '\u0146': 'n', '\u0148': 'n', '\u014b': 'n',
    '\u014c': 'O',  '\u014e': 'O', '\u0150': 'O',
    '\u014d': 'o',  '\u014f': 'o', '\u0151': 'o',
    '\u0154': 'R',  '\u0156': 'R', '\u0158': 'R',
    '\u0155': 'r',  '\u0157': 'r', '\u0159': 'r',
    '\u015a': 'S',  '\u015c': 'S', '\u015e': 'S', '\u0160': 'S',
    '\u015b': 's',  '\u015d': 's', '\u015f': 's', '\u0161': 's',
    '\u0162': 'T',  '\u0164': 'T', '\u0166': 'T',
    '\u0163': 't',  '\u0165': 't', '\u0167': 't',
    '\u0168': 'U',  '\u016a': 'U', '\u016c': 'U', '\u016e': 'U', '\u0170': 'U', '\u0172': 'U',
    '\u0169': 'u',  '\u016b': 'u', '\u016d': 'u', '\u016f': 'u', '\u0171': 'u', '\u0173': 'u',
    '\u0174': 'W',  '\u0175': 'w',
    '\u0176': 'Y',  '\u0177': 'y', '\u0178': 'Y',
    '\u0179': 'Z',  '\u017b': 'Z', '\u017d': 'Z',
    '\u017a': 'z',  '\u017c': 'z', '\u017e': 'z',
    '\u0132': 'IJ', '\u0133': 'ij',
    '\u0152': 'Oe', '\u0153': 'oe',
    '\u0149': "'n", '\u017f': 's'
  };

  /** Used to map characters to HTML entities. */
  var htmlEscapes = {
    '&': '&amp;',
    '<': '&lt;',
    '>': '&gt;',
    '"': '&quot;',
    "'": '&#39;'
  };

  /** Used to map HTML entities to characters. */
  var htmlUnescapes = {
    '&amp;': '&',
    '&lt;': '<',
    '&gt;': '>',
    '&quot;': '"',
    '&#39;': "'"
  };

  /** Used to escape characters for inclusion in compiled string literals. */
  var stringEscapes = {
    '\\': '\\',
    "'": "'",
    '\n': 'n',
    '\r': 'r',
    '\u2028': 'u2028',
    '\u2029': 'u2029'
  };

  /** Built-in method references without a dependency on `root`. */
  var freeParseFloat = parseFloat,
      freeParseInt = parseInt;

  /** Detect free variable `global` from Node.js. */
  var freeGlobal = typeof global == 'object' && global && global.Object === Object && global;

  /** Detect free variable `self`. */
  var freeSelf = typeof self == 'object' && self && self.Object === Object && self;

  /** Used as a reference to the global object. */
  var root = freeGlobal || freeSelf || Function('return this')();

  /** Detect free variable `exports`. */
  var freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports;

  /** Detect free variable `module`. */
  var freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module;

  /** Detect the popular CommonJS extension `module.exports`. */
  var moduleExports = freeModule && freeModule.exports === freeExports;

  /** Detect free variable `process` from Node.js. */
  var freeProcess = moduleExports && freeGlobal.process;

  /** Used to access faster Node.js helpers. */
  var nodeUtil = (function() {
    try {
      return freeProcess && freeProcess.binding && freeProcess.binding('util');
    } catch (e) {}
  }());

  /* Node.js helper references. */
  var nodeIsArrayBuffer = nodeUtil && nodeUtil.isArrayBuffer,
      nodeIsDate = nodeUtil && nodeUtil.isDate,
      nodeIsMap = nodeUtil && nodeUtil.isMap,
      nodeIsRegExp = nodeUtil && nodeUtil.isRegExp,
      nodeIsSet = nodeUtil && nodeUtil.isSet,
      nodeIsTypedArray = nodeUtil && nodeUtil.isTypedArray;

  /*--------------------------------------------------------------------------*/

  /**
   * Adds the key-value `pair` to `map`.
   *
   * @private
   * @param {Object} map The map to modify.
   * @param {Array} pair The key-value pair to add.
   * @returns {Object} Returns `map`.
   */
  function addMapEntry(map, pair) {
    // Don't return `map.set` because it's not chainable in IE 11.
    map.set(pair[0], pair[1]);
    return map;
  }

  /**
   * Adds `value` to `set`.
   *
   * @private
   * @param {Object} set The set to modify.
   * @param {*} value The value to add.
   * @returns {Object} Returns `set`.
   */
  function addSetEntry(set, value) {
    // Don't return `set.add` because it's not chainable in IE 11.
    set.add(value);
    return set;
  }

  /**
   * A faster alternative to `Function#apply`, this function invokes `func`
   * with the `this` binding of `thisArg` and the arguments of `args`.
   *
   * @private
   * @param {Function} func The function to invoke.
   * @param {*} thisArg The `this` binding of `func`.
   * @param {Array} args The arguments to invoke `func` with.
   * @returns {*} Returns the result of `func`.
   */
  function apply(func, thisArg, args) {
    switch (args.length) {
      case 0: return func.call(thisArg);
      case 1: return func.call(thisArg, args[0]);
      case 2: return func.call(thisArg, args[0], args[1]);
      case 3: return func.call(thisArg, args[0], args[1], args[2]);
    }
    return func.apply(thisArg, args);
  }

  /**
   * A specialized version of `baseAggregator` for arrays.
   *
   * @private
   * @param {Array} [array] The array to iterate over.
   * @param {Function} setter The function to set `accumulator` values.
   * @param {Function} iteratee The iteratee to transform keys.
   * @param {Object} accumulator The initial aggregated object.
   * @returns {Function} Returns `accumulator`.
   */
  function arrayAggregator(array, setter, iteratee, accumulator) {
    var index = -1,
        length = array == null ? 0 : array.length;

    while (++index < length) {
      var value = array[index];
      setter(accumulator, value, iteratee(value), array);
    }
    return accumulator;
  }

  /**
   * A specialized version of `_.forEach` for arrays without support for
   * iteratee shorthands.
   *
   * @private
   * @param {Array} [array] The array to iterate over.
   * @param {Function} iteratee The function invoked per iteration.
   * @returns {Array} Returns `array`.
   */
  function arrayEach(array, iteratee) {
    var index = -1,
        length = array == null ? 0 : array.length;

    while (++index < length) {
      if (iteratee(array[index], index, array) === false) {
        break;
      }
    }
    return array;
  }

  /**
   * A specialized version of `_.forEachRight` for arrays without support for
   * iteratee shorthands.
   *
   * @private
   * @param {Array} [array] The array to iterate over.
   * @param {Function} iteratee The function invoked per iteration.
   * @returns {Array} Returns `array`.
   */
  function arrayEachRight(array, iteratee) {
    var length = array == null ? 0 : array.length;

    while (length--) {
      if (iteratee(array[length], length, array) === false) {
        break;
      }
    }
    return array;
  }

  /**
   * A specialized version of `_.every` for arrays without support for
   * iteratee shorthands.
   *
   * @private
   * @param {Array} [array] The array to iterate over.
   * @param {Function} predicate The function invoked per iteration.
   * @returns {boolean} Returns `true` if all elements pass the predicate check,
   *  else `false`.
   */
  function arrayEvery(array, predicate) {
    var index = -1,
        length = array == null ? 0 : array.length;

    while (++index < length) {
      if (!predicate(array[index], index, array)) {
        return false;
      }
    }
    return true;
  }

  /**
   * A specialized version of `_.filter` for arrays without support for
   * iteratee shorthands.
   *
   * @private
   * @param {Array} [array] The array to iterate over.
   * @param {Function} predicate The function invoked per iteration.
   * @returns {Array} Returns the new filtered array.
   */
  function arrayFilter(array, predicate) {
    var index = -1,
        length = array == null ? 0 : array.length,
        resIndex = 0,
        result = [];

    while (++index < length) {
      var value = array[index];
      if (predicate(value, index, array)) {
        result[resIndex++] = value;
      }
    }
    return result;
  }

  /**
   * A specialized version of `_.includes` for arrays without support for
   * specifying an index to search from.
   *
   * @private
   * @param {Array} [array] The array to inspect.
   * @param {*} target The value to search for.
   * @returns {boolean} Returns `true` if `target` is found, else `false`.
   */
  function arrayIncludes(array, value) {
    var length = array == null ? 0 : array.length;
    return !!length && baseIndexOf(array, value, 0) > -1;
  }

  /**
   * This function is like `arrayIncludes` except that it accepts a comparator.
   *
   * @private
   * @param {Array} [array] The array to inspect.
   * @param {*} target The value to search for.
   * @param {Function} comparator The comparator invoked per element.
   * @returns {boolean} Returns `true` if `target` is found, else `false`.
   */
  function arrayIncludesWith(array, value, comparator) {
    var index = -1,
        length = array == null ? 0 : array.length;

    while (++index < length) {
      if (comparator(value, array[index])) {
        return true;
      }
    }
    return false;
  }

  /**
   * A specialized version of `_.map` for arrays without support for iteratee
   * shorthands.
   *
   * @private
   * @param {Array} [array] The array to iterate over.
   * @param {Function} iteratee The function invoked per iteration.
   * @returns {Array} Returns the new mapped array.
   */
  function arrayMap(array, iteratee) {
    var index = -1,
        length = array == null ? 0 : array.length,
        result = Array(length);

    while (++index < length) {
      result[index] = iteratee(array[index], index, array);
    }
    return result;
  }

  /**
   * Appends the elements of `values` to `array`.
   *
   * @private
   * @param {Array} array The array to modify.
   * @param {Array} values The values to append.
   * @returns {Array} Returns `array`.
   */
  function arrayPush(array, values) {
    var index = -1,
        length = values.length,
        offset = array.length;

    while (++index < length) {
      array[offset + index] = values[index];
    }
    return array;
  }

  /**
   * A specialized version of `_.reduce` for arrays without support for
   * iteratee shorthands.
   *
   * @private
   * @param {Array} [array] The array to iterate over.
   * @param {Function} iteratee The function invoked per iteration.
   * @param {*} [accumulator] The initial value.
   * @param {boolean} [initAccum] Specify using the first element of `array` as
   *  the initial value.
   * @returns {*} Returns the accumulated value.
   */
  function arrayReduce(array, iteratee, accumulator, initAccum) {
    var index = -1,
        length = array == null ? 0 : array.length;

    if (initAccum && length) {
      accumulator = array[++index];
    }
    while (++index < length) {
      accumulator = iteratee(accumulator, array[index], index, array);
    }
    return accumulator;
  }

  /**
   * A specialized version of `_.reduceRight` for arrays without support for
   * iteratee shorthands.
   *
   * @private
   * @param {Array} [array] The array to iterate over.
   * @param {Function} iteratee The function invoked per iteration.
   * @param {*} [accumulator] The initial value.
   * @param {boolean} [initAccum] Specify using the last element of `array` as
   *  the initial value.
   * @returns {*} Returns the accumulated value.
   */
  function arrayReduceRight(array, iteratee, accumulator, initAccum) {
    var length = array == null ? 0 : array.length;
    if (initAccum && length) {
      accumulator = array[--length];
    }
    while (length--) {
      accumulator = iteratee(accumulator, array[length], length, array);
    }
    return accumulator;
  }

  /**
   * A specialized version of `_.some` for arrays without support for iteratee
   * shorthands.
   *
   * @private
   * @param {Array} [array] The array to iterate over.
   * @param {Function} predicate The function invoked per iteration.
   * @returns {boolean} Returns `true` if any element passes the predicate check,
   *  else `false`.
   */
  function arraySome(array, predicate) {
    var index = -1,
        length = array == null ? 0 : array.length;

    while (++index < length) {
      if (predicate(array[index], index, array)) {
        return true;
      }
    }
    return false;
  }

  /**
   * Gets the size of an ASCII `string`.
   *
   * @private
   * @param {string} string The string inspect.
   * @returns {number} Returns the string size.
   */
  var asciiSize = baseProperty('length');

  /**
   * Converts an ASCII `string` to an array.
   *
   * @private
   * @param {string} string The string to convert.
   * @returns {Array} Returns the converted array.
   */
  function asciiToArray(string) {
    return string.split('');
  }

  /**
   * Splits an ASCII `string` into an array of its words.
   *
   * @private
   * @param {string} The string to inspect.
   * @returns {Array} Returns the words of `string`.
   */
  function asciiWords(string) {
    return string.match(reAsciiWord) || [];
  }

  /**
   * The base implementation of methods like `_.findKey` and `_.findLastKey`,
   * without support for iteratee shorthands, which iterates over `collection`
   * using `eachFunc`.
   *
   * @private
   * @param {Array|Object} collection The collection to inspect.
   * @param {Function} predicate The function invoked per iteration.
   * @param {Function} eachFunc The function to iterate over `collection`.
   * @returns {*} Returns the found element or its key, else `undefined`.
   */
  function baseFindKey(collection, predicate, eachFunc) {
    var result;
    eachFunc(collection, function(value, key, collection) {
      if (predicate(value, key, collection)) {
        result = key;
        return false;
      }
    });
    return result;
  }

  /**
   * The base implementation of `_.findIndex` and `_.findLastIndex` without
   * support for iteratee shorthands.
   *
   * @private
   * @param {Array} array The array to inspect.
   * @param {Function} predicate The function invoked per iteration.
   * @param {number} fromIndex The index to search from.
   * @param {boolean} [fromRight] Specify iterating from right to left.
   * @returns {number} Returns the index of the matched value, else `-1`.
   */
  function baseFindIndex(array, predicate, fromIndex, fromRight) {
    var length = array.length,
        index = fromIndex + (fromRight ? 1 : -1);

    while ((fromRight ? index-- : ++index < length)) {
      if (predicate(array[index], index, array)) {
        return index;
      }
    }
    return -1;
  }

  /**
   * The base implementation of `_.indexOf` without `fromIndex` bounds checks.
   *
   * @private
   * @param {Array} array The array to inspect.
   * @param {*} value The value to search for.
   * @param {number} fromIndex The index to search from.
   * @returns {number} Returns the index of the matched value, else `-1`.
   */
  function baseIndexOf(array, value, fromIndex) {
    return value === value
      ? strictIndexOf(array, value, fromIndex)
      : baseFindIndex(array, baseIsNaN, fromIndex);
  }

  /**
   * This function is like `baseIndexOf` except that it accepts a comparator.
   *
   * @private
   * @param {Array} array The array to inspect.
   * @param {*} value The value to search for.
   * @param {number} fromIndex The index to search from.
   * @param {Function} comparator The comparator invoked per element.
   * @returns {number} Returns the index of the matched value, else `-1`.
   */
  function baseIndexOfWith(array, value, fromIndex, comparator) {
    var index = fromIndex - 1,
        length = array.length;

    while (++index < length) {
      if (comparator(array[index], value)) {
        return index;
      }
    }
    return -1;
  }

  /**
   * The base implementation of `_.isNaN` without support for number objects.
   *
   * @private
   * @param {*} value The value to check.
   * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`.
   */
  function baseIsNaN(value) {
    return value !== value;
  }

  /**
   * The base implementation of `_.mean` and `_.meanBy` without support for
   * iteratee shorthands.
   *
   * @private
   * @param {Array} array The array to iterate over.
   * @param {Function} iteratee The function invoked per iteration.
   * @returns {number} Returns the mean.
   */
  function baseMean(array, iteratee) {
    var length = array == null ? 0 : array.length;
    return length ? (baseSum(array, iteratee) / length) : NAN;
  }

  /**
   * The base implementation of `_.property` without support for deep paths.
   *
   * @private
   * @param {string} key The key of the property to get.
   * @returns {Function} Returns the new accessor function.
   */
  function baseProperty(key) {
    return function(object) {
      return object == null ? undefined : object[key];
    };
  }

  /**
   * The base implementation of `_.propertyOf` without support for deep paths.
   *
   * @private
   * @param {Object} object The object to query.
   * @returns {Function} Returns the new accessor function.
   */
  function basePropertyOf(object) {
    return function(key) {
      return object == null ? undefined : object[key];
    };
  }

  /**
   * The base implementation of `_.reduce` and `_.reduceRight`, without support
   * for iteratee shorthands, which iterates over `collection` using `eachFunc`.
   *
   * @private
   * @param {Array|Object} collection The collection to iterate over.
   * @param {Function} iteratee The function invoked per iteration.
   * @param {*} accumulator The initial value.
   * @param {boolean} initAccum Specify using the first or last element of
   *  `collection` as the initial value.
   * @param {Function} eachFunc The function to iterate over `collection`.
   * @returns {*} Returns the accumulated value.
   */
  function baseReduce(collection, iteratee, accumulator, initAccum, eachFunc) {
    eachFunc(collection, function(value, index, collection) {
      accumulator = initAccum
        ? (initAccum = false, value)
        : iteratee(accumulator, value, index, collection);
    });
    return accumulator;
  }

  /**
   * The base implementation of `_.sortBy` which uses `comparer` to define the
   * sort order of `array` and replaces criteria objects with their corresponding
   * values.
   *
   * @private
   * @param {Array} array The array to sort.
   * @param {Function} comparer The function to define sort order.
   * @returns {Array} Returns `array`.
   */
  function baseSortBy(array, comparer) {
    var length = array.length;

    array.sort(comparer);
    while (length--) {
      array[length] = array[length].value;
    }
    return array;
  }

  /**
   * The base implementation of `_.sum` and `_.sumBy` without support for
   * iteratee shorthands.
   *
   * @private
   * @param {Array} array The array to iterate over.
   * @param {Function} iteratee The function invoked per iteration.
   * @returns {number} Returns the sum.
   */
  function baseSum(array, iteratee) {
    var result,
        index = -1,
        length = array.length;

    while (++index < length) {
      var current = iteratee(array[index]);
      if (current !== undefined) {
        result = result === undefined ? current : (result + current);
      }
    }
    return result;
  }

  /**
   * The base implementation of `_.times` without support for iteratee shorthands
   * or max array length checks.
   *
   * @private
   * @param {number} n The number of times to invoke `iteratee`.
   * @param {Function} iteratee The function invoked per iteration.
   * @returns {Array} Returns the array of results.
   */
  function baseTimes(n, iteratee) {
    var index = -1,
        result = Array(n);

    while (++index < n) {
      result[index] = iteratee(index);
    }
    return result;
  }

  /**
   * The base implementation of `_.toPairs` and `_.toPairsIn` which creates an array
   * of key-value pairs for `object` corresponding to the property names of `props`.
   *
   * @private
   * @param {Object} object The object to query.
   * @param {Array} props The property names to get values for.
   * @returns {Object} Returns the key-value pairs.
   */
  function baseToPairs(object, props) {
    return arrayMap(props, function(key) {
      return [key, object[key]];
    });
  }

  /**
   * The base implementation of `_.unary` without support for storing metadata.
   *
   * @private
   * @param {Function} func The function to cap arguments for.
   * @returns {Function} Returns the new capped function.
   */
  function baseUnary(func) {
    return function(value) {
      return func(value);
    };
  }

  /**
   * The base implementation of `_.values` and `_.valuesIn` which creates an
   * array of `object` property values corresponding to the property names
   * of `props`.
   *
   * @private
   * @param {Object} object The object to query.
   * @param {Array} props The property names to get values for.
   * @returns {Object} Returns the array of property values.
   */
  function baseValues(object, props) {
    return arrayMap(props, function(key) {
      return object[key];
    });
  }

  /**
   * Checks if a `cache` value for `key` exists.
   *
   * @private
   * @param {Object} cache The cache to query.
   * @param {string} key The key of the entry to check.
   * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
   */
  function cacheHas(cache, key) {
    return cache.has(key);
  }

  /**
   * Used by `_.trim` and `_.trimStart` to get the index of the first string symbol
   * that is not found in the character symbols.
   *
   * @private
   * @param {Array} strSymbols The string symbols to inspect.
   * @param {Array} chrSymbols The character symbols to find.
   * @returns {number} Returns the index of the first unmatched string symbol.
   */
  function charsStartIndex(strSymbols, chrSymbols) {
    var index = -1,
        length = strSymbols.length;

    while (++index < length && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {}
    return index;
  }

  /**
   * Used by `_.trim` and `_.trimEnd` to get the index of the last string symbol
   * that is not found in the character symbols.
   *
   * @private
   * @param {Array} strSymbols The string symbols to inspect.
   * @param {Array} chrSymbols The character symbols to find.
   * @returns {number} Returns the index of the last unmatched string symbol.
   */
  function charsEndIndex(strSymbols, chrSymbols) {
    var index = strSymbols.length;

    while (index-- && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {}
    return index;
  }

  /**
   * Gets the number of `placeholder` occurrences in `array`.
   *
   * @private
   * @param {Array} array The array to inspect.
   * @param {*} placeholder The placeholder to search for.
   * @returns {number} Returns the placeholder count.
   */
  function countHolders(array, placeholder) {
    var length = array.length,
        result = 0;

    while (length--) {
      if (array[length] === placeholder) {
        ++result;
      }
    }
    return result;
  }

  /**
   * Used by `_.deburr` to convert Latin-1 Supplement and Latin Extended-A
   * letters to basic Latin letters.
   *
   * @private
   * @param {string} letter The matched letter to deburr.
   * @returns {string} Returns the deburred letter.
   */
  var deburrLetter = basePropertyOf(deburredLetters);

  /**
   * Used by `_.escape` to convert characters to HTML entities.
   *
   * @private
   * @param {string} chr The matched character to escape.
   * @returns {string} Returns the escaped character.
   */
  var escapeHtmlChar = basePropertyOf(htmlEscapes);

  /**
   * Used by `_.template` to escape characters for inclusion in compiled string literals.
   *
   * @private
   * @param {string} chr The matched character to escape.
   * @returns {string} Returns the escaped character.
   */
  function escapeStringChar(chr) {
    return '\\' + stringEscapes[chr];
  }

  /**
   * Gets the value at `key` of `object`.
   *
   * @private
   * @param {Object} [object] The object to query.
   * @param {string} key The key of the property to get.
   * @returns {*} Returns the property value.
   */
  function getValue(object, key) {
    return object == null ? undefined : object[key];
  }

  /**
   * Checks if `string` contains Unicode symbols.
   *
   * @private
   * @param {string} string The string to inspect.
   * @returns {boolean} Returns `true` if a symbol is found, else `false`.
   */
  function hasUnicode(string) {
    return reHasUnicode.test(string);
  }

  /**
   * Checks if `string` contains a word composed of Unicode symbols.
   *
   * @private
   * @param {string} string The string to inspect.
   * @returns {boolean} Returns `true` if a word is found, else `false`.
   */
  function hasUnicodeWord(string) {
    return reHasUnicodeWord.test(string);
  }

  /**
   * Converts `iterator` to an array.
   *
   * @private
   * @param {Object} iterator The iterator to convert.
   * @returns {Array} Returns the converted array.
   */
  function iteratorToArray(iterator) {
    var data,
        result = [];

    while (!(data = iterator.next()).done) {
      result.push(data.value);
    }
    return result;
  }

  /**
   * Converts `map` to its key-value pairs.
   *
   * @private
   * @param {Object} map The map to convert.
   * @returns {Array} Returns the key-value pairs.
   */
  function mapToArray(map) {
    var index = -1,
        result = Array(map.size);

    map.forEach(function(value, key) {
      result[++index] = [key, value];
    });
    return result;
  }

  /**
   * Creates a unary function that invokes `func` with its argument transformed.
   *
   * @private
   * @param {Function} func The function to wrap.
   * @param {Function} transform The argument transform.
   * @returns {Function} Returns the new function.
   */
  function overArg(func, transform) {
    return function(arg) {
      return func(transform(arg));
    };
  }

  /**
   * Replaces all `placeholder` elements in `array` with an internal placeholder
   * and returns an array of their indexes.
   *
   * @private
   * @param {Array} array The array to modify.
   * @param {*} placeholder The placeholder to replace.
   * @returns {Array} Returns the new array of placeholder indexes.
   */
  function replaceHolders(array, placeholder) {
    var index = -1,
        length = array.length,
        resIndex = 0,
        result = [];

    while (++index < length) {
      var value = array[index];
      if (value === placeholder || value === PLACEHOLDER) {
        array[index] = PLACEHOLDER;
        result[resIndex++] = index;
      }
    }
    return result;
  }

  /**
   * Converts `set` to an array of its values.
   *
   * @private
   * @param {Object} set The set to convert.
   * @returns {Array} Returns the values.
   */
  function setToArray(set) {
    var index = -1,
        result = Array(set.size);

    set.forEach(function(value) {
      result[++index] = value;
    });
    return result;
  }

  /**
   * Converts `set` to its value-value pairs.
   *
   * @private
   * @param {Object} set The set to convert.
   * @returns {Array} Returns the value-value pairs.
   */
  function setToPairs(set) {
    var index = -1,
        result = Array(set.size);

    set.forEach(function(value) {
      result[++index] = [value, value];
    });
    return result;
  }

  /**
   * A specialized version of `_.indexOf` which performs strict equality
   * comparisons of values, i.e. `===`.
   *
   * @private
   * @param {Array} array The array to inspect.
   * @param {*} value The value to search for.
   * @param {number} fromIndex The index to search from.
   * @returns {number} Returns the index of the matched value, else `-1`.
   */
  function strictIndexOf(array, value, fromIndex) {
    var index = fromIndex - 1,
        length = array.length;

    while (++index < length) {
      if (array[index] === value) {
        return index;
      }
    }
    return -1;
  }

  /**
   * A specialized version of `_.lastIndexOf` which performs strict equality
   * comparisons of values, i.e. `===`.
   *
   * @private
   * @param {Array} array The array to inspect.
   * @param {*} value The value to search for.
   * @param {number} fromIndex The index to search from.
   * @returns {number} Returns the index of the matched value, else `-1`.
   */
  function strictLastIndexOf(array, value, fromIndex) {
    var index = fromIndex + 1;
    while (index--) {
      if (array[index] === value) {
        return index;
      }
    }
    return index;
  }

  /**
   * Gets the number of symbols in `string`.
   *
   * @private
   * @param {string} string The string to inspect.
   * @returns {number} Returns the string size.
   */
  function stringSize(string) {
    return hasUnicode(string)
      ? unicodeSize(string)
      : asciiSize(string);
  }

  /**
   * Converts `string` to an array.
   *
   * @private
   * @param {string} string The string to convert.
   * @returns {Array} Returns the converted array.
   */
  function stringToArray(string) {
    return hasUnicode(string)
      ? unicodeToArray(string)
      : asciiToArray(string);
  }

  /**
   * Used by `_.unescape` to convert HTML entities to characters.
   *
   * @private
   * @param {string} chr The matched character to unescape.
   * @returns {string} Returns the unescaped character.
   */
  var unescapeHtmlChar = basePropertyOf(htmlUnescapes);

  /**
   * Gets the size of a Unicode `string`.
   *
   * @private
   * @param {string} string The string inspect.
   * @returns {number} Returns the string size.
   */
  function unicodeSize(string) {
    var result = reUnicode.lastIndex = 0;
    while (reUnicode.test(string)) {
      ++result;
    }
    return result;
  }

  /**
   * Converts a Unicode `string` to an array.
   *
   * @private
   * @param {string} string The string to convert.
   * @returns {Array} Returns the converted array.
   */
  function unicodeToArray(string) {
    return string.match(reUnicode) || [];
  }

  /**
   * Splits a Unicode `string` into an array of its words.
   *
   * @private
   * @param {string} The string to inspect.
   * @returns {Array} Returns the words of `string`.
   */
  function unicodeWords(string) {
    return string.match(reUnicodeWord) || [];
  }

  /*--------------------------------------------------------------------------*/

  /**
   * Create a new pristine `lodash` function using the `context` object.
   *
   * @static
   * @memberOf _
   * @since 1.1.0
   * @category Util
   * @param {Object} [context=root] The context object.
   * @returns {Function} Returns a new `lodash` function.
   * @example
   *
   * _.mixin({ 'foo': _.constant('foo') });
   *
   * var lodash = _.runInContext();
   * lodash.mixin({ 'bar': lodash.constant('bar') });
   *
   * _.isFunction(_.foo);
   * // => true
   * _.isFunction(_.bar);
   * // => false
   *
   * lodash.isFunction(lodash.foo);
   * // => false
   * lodash.isFunction(lodash.bar);
   * // => true
   *
   * // Create a suped-up `defer` in Node.js.
   * var defer = _.runInContext({ 'setTimeout': setImmediate }).defer;
   */
  var runInContext = (function runInContext(context) {
    context = context == null ? root : _.defaults(root.Object(), context, _.pick(root, contextProps));

    /** Built-in constructor references. */
    var Array = context.Array,
        Date = context.Date,
        Error = context.Error,
        Function = context.Function,
        Math = context.Math,
        Object = context.Object,
        RegExp = context.RegExp,
        String = context.String,
        TypeError = context.TypeError;

    /** Used for built-in method references. */
    var arrayProto = Array.prototype,
        funcProto = Function.prototype,
        objectProto = Object.prototype;

    /** Used to detect overreaching core-js shims. */
    var coreJsData = context['__core-js_shared__'];

    /** Used to resolve the decompiled source of functions. */
    var funcToString = funcProto.toString;

    /** Used to check objects for own properties. */
    var hasOwnProperty = objectProto.hasOwnProperty;

    /** Used to generate unique IDs. */
    var idCounter = 0;

    /** Used to detect methods masquerading as native. */
    var maskSrcKey = (function() {
      var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || '');
      return uid ? ('Symbol(src)_1.' + uid) : '';
    }());

    /**
     * Used to resolve the
     * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
     * of values.
     */
    var nativeObjectToString = objectProto.toString;

    /** Used to infer the `Object` constructor. */
    var objectCtorString = funcToString.call(Object);

    /** Used to restore the original `_` reference in `_.noConflict`. */
    var oldDash = root._;

    /** Used to detect if a method is native. */
    var reIsNative = RegExp('^' +
      funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\$&')
      .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$'
    );

    /** Built-in value references. */
    var Buffer = moduleExports ? context.Buffer : undefined,
        Symbol = context.Symbol,
        Uint8Array = context.Uint8Array,
        allocUnsafe = Buffer ? Buffer.allocUnsafe : undefined,
        getPrototype = overArg(Object.getPrototypeOf, Object),
        objectCreate = Object.create,
        propertyIsEnumerable = objectProto.propertyIsEnumerable,
        splice = arrayProto.splice,
        spreadableSymbol = Symbol ? Symbol.isConcatSpreadable : undefined,
        symIterator = Symbol ? Symbol.iterator : undefined,
        symToStringTag = Symbol ? Symbol.toStringTag : undefined;

    var defineProperty = (function() {
      try {
        var func = getNative(Object, 'defineProperty');
        func({}, '', {});
        return func;
      } catch (e) {}
    }());

    /** Mocked built-ins. */
    var ctxClearTimeout = context.clearTimeout !== root.clearTimeout && context.clearTimeout,
        ctxNow = Date && Date.now !== root.Date.now && Date.now,
        ctxSetTimeout = context.setTimeout !== root.setTimeout && context.setTimeout;

    /* Built-in method references for those with the same name as other `lodash` methods. */
    var nativeCeil = Math.ceil,
        nativeFloor = Math.floor,
        nativeGetSymbols = Object.getOwnPropertySymbols,
        nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined,
        nativeIsFinite = context.isFinite,
        nativeJoin = arrayProto.join,
        nativeKeys = overArg(Object.keys, Object),
        nativeMax = Math.max,
        nativeMin = Math.min,
        nativeNow = Date.now,
        nativeParseInt = context.parseInt,
        nativeRandom = Math.random,
        nativeReverse = arrayProto.reverse;

    /* Built-in method references that are verified to be native. */
    var DataView = getNative(context, 'DataView'),
        Map = getNative(context, 'Map'),
        Promise = getNative(context, 'Promise'),
        Set = getNative(context, 'Set'),
        WeakMap = getNative(context, 'WeakMap'),
        nativeCreate = getNative(Object, 'create');

    /** Used to store function metadata. */
    var metaMap = WeakMap && new WeakMap;

    /** Used to lookup unminified function names. */
    var realNames = {};

    /** Used to detect maps, sets, and weakmaps. */
    var dataViewCtorString = toSource(DataView),
        mapCtorString = toSource(Map),
        promiseCtorString = toSource(Promise),
        setCtorString = toSource(Set),
        weakMapCtorString = toSource(WeakMap);

    /** Used to convert symbols to primitives and strings. */
    var symbolProto = Symbol ? Symbol.prototype : undefined,
        symbolValueOf = symbolProto ? symbolProto.valueOf : undefined,
        symbolToString = symbolProto ? symbolProto.toString : undefined;

    /*------------------------------------------------------------------------*/

    /**
     * Creates a `lodash` object which wraps `value` to enable implicit method
     * chain sequences. Methods that operate on and return arrays, collections,
     * and functions can be chained together. Methods that retrieve a single value
     * or may return a primitive value will automatically end the chain sequence
     * and return the unwrapped value. Otherwise, the value must be unwrapped
     * with `_#value`.
     *
     * Explicit chain sequences, which must be unwrapped with `_#value`, may be
     * enabled using `_.chain`.
     *
     * The execution of chained methods is lazy, that is, it's deferred until
     * `_#value` is implicitly or explicitly called.
     *
     * Lazy evaluation allows several methods to support shortcut fusion.
     * Shortcut fusion is an optimization to merge iteratee calls; this avoids
     * the creation of intermediate arrays and can greatly reduce the number of
     * iteratee executions. Sections of a chain sequence qualify for shortcut
     * fusion if the section is applied to an array and iteratees accept only
     * one argument. The heuristic for whether a section qualifies for shortcut
     * fusion is subject to change.
     *
     * Chaining is supported in custom builds as long as the `_#value` method is
     * directly or indirectly included in the build.
     *
     * In addition to lodash methods, wrappers have `Array` and `String` methods.
     *
     * The wrapper `Array` methods are:
     * `concat`, `join`, `pop`, `push`, `shift`, `sort`, `splice`, and `unshift`
     *
     * The wrapper `String` methods are:
     * `replace` and `split`
     *
     * The wrapper methods that support shortcut fusion are:
     * `at`, `compact`, `drop`, `dropRight`, `dropWhile`, `filter`, `find`,
     * `findLast`, `head`, `initial`, `last`, `map`, `reject`, `reverse`, `slice`,
     * `tail`, `take`, `takeRight`, `takeRightWhile`, `takeWhile`, and `toArray`
     *
     * The chainable wrapper methods are:
     * `after`, `ary`, `assign`, `assignIn`, `assignInWith`, `assignWith`, `at`,
     * `before`, `bind`, `bindAll`, `bindKey`, `castArray`, `chain`, `chunk`,
     * `commit`, `compact`, `concat`, `conforms`, `constant`, `countBy`, `create`,
     * `curry`, `debounce`, `defaults`, `defaultsDeep`, `defer`, `delay`,
     * `difference`, `differenceBy`, `differenceWith`, `drop`, `dropRight`,
     * `dropRightWhile`, `dropWhile`, `extend`, `extendWith`, `fill`, `filter`,
     * `flatMap`, `flatMapDeep`, `flatMapDepth`, `flatten`, `flattenDeep`,
     * `flattenDepth`, `flip`, `flow`, `flowRight`, `fromPairs`, `functions`,
     * `functionsIn`, `groupBy`, `initial`, `intersection`, `intersectionBy`,
     * `intersectionWith`, `invert`, `invertBy`, `invokeMap`, `iteratee`, `keyBy`,
     * `keys`, `keysIn`, `map`, `mapKeys`, `mapValues`, `matches`, `matchesProperty`,
     * `memoize`, `merge`, `mergeWith`, `method`, `methodOf`, `mixin`, `negate`,
     * `nthArg`, `omit`, `omitBy`, `once`, `orderBy`, `over`, `overArgs`,
     * `overEvery`, `overSome`, `partial`, `partialRight`, `partition`, `pick`,
     * `pickBy`, `plant`, `property`, `propertyOf`, `pull`, `pullAll`, `pullAllBy`,
     * `pullAllWith`, `pullAt`, `push`, `range`, `rangeRight`, `rearg`, `reject`,
     * `remove`, `rest`, `reverse`, `sampleSize`, `set`, `setWith`, `shuffle`,
     * `slice`, `sort`, `sortBy`, `splice`, `spread`, `tail`, `take`, `takeRight`,
     * `takeRightWhile`, `takeWhile`, `tap`, `throttle`, `thru`, `toArray`,
     * `toPairs`, `toPairsIn`, `toPath`, `toPlainObject`, `transform`, `unary`,
     * `union`, `unionBy`, `unionWith`, `uniq`, `uniqBy`, `uniqWith`, `unset`,
     * `unshift`, `unzip`, `unzipWith`, `update`, `updateWith`, `values`,
     * `valuesIn`, `without`, `wrap`, `xor`, `xorBy`, `xorWith`, `zip`,
     * `zipObject`, `zipObjectDeep`, and `zipWith`
     *
     * The wrapper methods that are **not** chainable by default are:
     * `add`, `attempt`, `camelCase`, `capitalize`, `ceil`, `clamp`, `clone`,
     * `cloneDeep`, `cloneDeepWith`, `cloneWith`, `conformsTo`, `deburr`,
     * `defaultTo`, `divide`, `each`, `eachRight`, `endsWith`, `eq`, `escape`,
     * `escapeRegExp`, `every`, `find`, `findIndex`, `findKey`, `findLast`,
     * `findLastIndex`, `findLastKey`, `first`, `floor`, `forEach`, `forEachRight`,
     * `forIn`, `forInRight`, `forOwn`, `forOwnRight`, `get`, `gt`, `gte`, `has`,
     * `hasIn`, `head`, `identity`, `includes`, `indexOf`, `inRange`, `invoke`,
     * `isArguments`, `isArray`, `isArrayBuffer`, `isArrayLike`, `isArrayLikeObject`,
     * `isBoolean`, `isBuffer`, `isDate`, `isElement`, `isEmpty`, `isEqual`,
     * `isEqualWith`, `isError`, `isFinite`, `isFunction`, `isInteger`, `isLength`,
     * `isMap`, `isMatch`, `isMatchWith`, `isNaN`, `isNative`, `isNil`, `isNull`,
     * `isNumber`, `isObject`, `isObjectLike`, `isPlainObject`, `isRegExp`,
     * `isSafeInteger`, `isSet`, `isString`, `isUndefined`, `isTypedArray`,
     * `isWeakMap`, `isWeakSet`, `join`, `kebabCase`, `last`, `lastIndexOf`,
     * `lowerCase`, `lowerFirst`, `lt`, `lte`, `max`, `maxBy`, `mean`, `meanBy`,
     * `min`, `minBy`, `multiply`, `noConflict`, `noop`, `now`, `nth`, `pad`,
     * `padEnd`, `padStart`, `parseInt`, `pop`, `random`, `reduce`, `reduceRight`,
     * `repeat`, `result`, `round`, `runInContext`, `sample`, `shift`, `size`,
     * `snakeCase`, `some`, `sortedIndex`, `sortedIndexBy`, `sortedLastIndex`,
     * `sortedLastIndexBy`, `startCase`, `startsWith`, `stubArray`, `stubFalse`,
     * `stubObject`, `stubString`, `stubTrue`, `subtract`, `sum`, `sumBy`,
     * `template`, `times`, `toFinite`, `toInteger`, `toJSON`, `toLength`,
     * `toLower`, `toNumber`, `toSafeInteger`, `toString`, `toUpper`, `trim`,
     * `trimEnd`, `trimStart`, `truncate`, `unescape`, `uniqueId`, `upperCase`,
     * `upperFirst`, `value`, and `words`
     *
     * @name _
     * @constructor
     * @category Seq
     * @param {*} value The value to wrap in a `lodash` instance.
     * @returns {Object} Returns the new `lodash` wrapper instance.
     * @example
     *
     * function square(n) {
     *   return n * n;
     * }
     *
     * var wrapped = _([1, 2, 3]);
     *
     * // Returns an unwrapped value.
     * wrapped.reduce(_.add);
     * // => 6
     *
     * // Returns a wrapped value.
     * var squares = wrapped.map(square);
     *
     * _.isArray(squares);
     * // => false
     *
     * _.isArray(squares.value());
     * // => true
     */
    function lodash(value) {
      if (isObjectLike(value) && !isArray(value) && !(value instanceof LazyWrapper)) {
        if (value instanceof LodashWrapper) {
          return value;
        }
        if (hasOwnProperty.call(value, '__wrapped__')) {
          return wrapperClone(value);
        }
      }
      return new LodashWrapper(value);
    }

    /**
     * The base implementation of `_.create` without support for assigning
     * properties to the created object.
     *
     * @private
     * @param {Object} proto The object to inherit from.
     * @returns {Object} Returns the new object.
     */
    var baseCreate = (function() {
      function object() {}
      return function(proto) {
        if (!isObject(proto)) {
          return {};
        }
        if (objectCreate) {
          return objectCreate(proto);
        }
        object.prototype = proto;
        var result = new object;
        object.prototype = undefined;
        return result;
      };
    }());

    /**
     * The function whose prototype chain sequence wrappers inherit from.
     *
     * @private
     */
    function baseLodash() {
      // No operation performed.
    }

    /**
     * The base constructor for creating `lodash` wrapper objects.
     *
     * @private
     * @param {*} value The value to wrap.
     * @param {boolean} [chainAll] Enable explicit method chain sequences.
     */
    function LodashWrapper(value, chainAll) {
      this.__wrapped__ = value;
      this.__actions__ = [];
      this.__chain__ = !!chainAll;
      this.__index__ = 0;
      this.__values__ = undefined;
    }

    /**
     * By default, the template delimiters used by lodash are like those in
     * embedded Ruby (ERB) as well as ES2015 template strings. Change the
     * following template settings to use alternative delimiters.
     *
     * @static
     * @memberOf _
     * @type {Object}
     */
    lodash.templateSettings = {

      /**
       * Used to detect `data` property values to be HTML-escaped.
       *
       * @memberOf _.templateSettings
       * @type {RegExp}
       */
      'escape': reEscape,

      /**
       * Used to detect code to be evaluated.
       *
       * @memberOf _.templateSettings
       * @type {RegExp}
       */
      'evaluate': reEvaluate,

      /**
       * Used to detect `data` property values to inject.
       *
       * @memberOf _.templateSettings
       * @type {RegExp}
       */
      'interpolate': reInterpolate,

      /**
       * Used to reference the data object in the template text.
       *
       * @memberOf _.templateSettings
       * @type {string}
       */
      'variable': '',

      /**
       * Used to import variables into the compiled template.
       *
       * @memberOf _.templateSettings
       * @type {Object}
       */
      'imports': {

        /**
         * A reference to the `lodash` function.
         *
         * @memberOf _.templateSettings.imports
         * @type {Function}
         */
        '_': lodash
      }
    };

    // Ensure wrappers are instances of `baseLodash`.
    lodash.prototype = baseLodash.prototype;
    lodash.prototype.constructor = lodash;

    LodashWrapper.prototype = baseCreate(baseLodash.prototype);
    LodashWrapper.prototype.constructor = LodashWrapper;

    /*------------------------------------------------------------------------*/

    /**
     * Creates a lazy wrapper object which wraps `value` to enable lazy evaluation.
     *
     * @private
     * @constructor
     * @param {*} value The value to wrap.
     */
    function LazyWrapper(value) {
      this.__wrapped__ = value;
      this.__actions__ = [];
      this.__dir__ = 1;
      this.__filtered__ = false;
      this.__iteratees__ = [];
      this.__takeCount__ = MAX_ARRAY_LENGTH;
      this.__views__ = [];
    }

    /**
     * Creates a clone of the lazy wrapper object.
     *
     * @private
     * @name clone
     * @memberOf LazyWrapper
     * @returns {Object} Returns the cloned `LazyWrapper` object.
     */
    function lazyClone() {
      var result = new LazyWrapper(this.__wrapped__);
      result.__actions__ = copyArray(this.__actions__);
      result.__dir__ = this.__dir__;
      result.__filtered__ = this.__filtered__;
      result.__iteratees__ = copyArray(this.__iteratees__);
      result.__takeCount__ = this.__takeCount__;
      result.__views__ = copyArray(this.__views__);
      return result;
    }

    /**
     * Reverses the direction of lazy iteration.
     *
     * @private
     * @name reverse
     * @memberOf LazyWrapper
     * @returns {Object} Returns the new reversed `LazyWrapper` object.
     */
    function lazyReverse() {
      if (this.__filtered__) {
        var result = new LazyWrapper(this);
        result.__dir__ = -1;
        result.__filtered__ = true;
      } else {
        result = this.clone();
        result.__dir__ *= -1;
      }
      return result;
    }

    /**
     * Extracts the unwrapped value from its lazy wrapper.
     *
     * @private
     * @name value
     * @memberOf LazyWrapper
     * @returns {*} Returns the unwrapped value.
     */
    function lazyValue() {
      var array = this.__wrapped__.value(),
          dir = this.__dir__,
          isArr = isArray(array),
          isRight = dir < 0,
          arrLength = isArr ? array.length : 0,
          view = getView(0, arrLength, this.__views__),
          start = view.start,
          end = view.end,
          length = end - start,
          index = isRight ? end : (start - 1),
          iteratees = this.__iteratees__,
          iterLength = iteratees.length,
          resIndex = 0,
          takeCount = nativeMin(length, this.__takeCount__);

      if (!isArr || (!isRight && arrLength == length && takeCount == length)) {
        return baseWrapperValue(array, this.__actions__);
      }
      var result = [];

      outer:
      while (length-- && resIndex < takeCount) {
        index += dir;

        var iterIndex = -1,
            value = array[index];

        while (++iterIndex < iterLength) {
          var data = iteratees[iterIndex],
              iteratee = data.iteratee,
              type = data.type,
              computed = iteratee(value);

          if (type == LAZY_MAP_FLAG) {
            value = computed;
          } else if (!computed) {
            if (type == LAZY_FILTER_FLAG) {
              continue outer;
            } else {
              break outer;
            }
          }
        }
        result[resIndex++] = value;
      }
      return result;
    }

    // Ensure `LazyWrapper` is an instance of `baseLodash`.
    LazyWrapper.prototype = baseCreate(baseLodash.prototype);
    LazyWrapper.prototype.constructor = LazyWrapper;

    /*------------------------------------------------------------------------*/

    /**
     * Creates a hash object.
     *
     * @private
     * @constructor
     * @param {Array} [entries] The key-value pairs to cache.
     */
    function Hash(entries) {
      var index = -1,
          length = entries == null ? 0 : entries.length;

      this.clear();
      while (++index < length) {
        var entry = entries[index];
        this.set(entry[0], entry[1]);
      }
    }

    /**
     * Removes all key-value entries from the hash.
     *
     * @private
     * @name clear
     * @memberOf Hash
     */
    function hashClear() {
      this.__data__ = nativeCreate ? nativeCreate(null) : {};
      this.size = 0;
    }

    /**
     * Removes `key` and its value from the hash.
     *
     * @private
     * @name delete
     * @memberOf Hash
     * @param {Object} hash The hash to modify.
     * @param {string} key The key of the value to remove.
     * @returns {boolean} Returns `true` if the entry was removed, else `false`.
     */
    function hashDelete(key) {
      var result = this.has(key) && delete this.__data__[key];
      this.size -= result ? 1 : 0;
      return result;
    }

    /**
     * Gets the hash value for `key`.
     *
     * @private
     * @name get
     * @memberOf Hash
     * @param {string} key The key of the value to get.
     * @returns {*} Returns the entry value.
     */
    function hashGet(key) {
      var data = this.__data__;
      if (nativeCreate) {
        var result = data[key];
        return result === HASH_UNDEFINED ? undefined : result;
      }
      return hasOwnProperty.call(data, key) ? data[key] : undefined;
    }

    /**
     * Checks if a hash value for `key` exists.
     *
     * @private
     * @name has
     * @memberOf Hash
     * @param {string} key The key of the entry to check.
     * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
     */
    function hashHas(key) {
      var data = this.__data__;
      return nativeCreate ? (data[key] !== undefined) : hasOwnProperty.call(data, key);
    }

    /**
     * Sets the hash `key` to `value`.
     *
     * @private
     * @name set
     * @memberOf Hash
     * @param {string} key The key of the value to set.
     * @param {*} value The value to set.
     * @returns {Object} Returns the hash instance.
     */
    function hashSet(key, value) {
      var data = this.__data__;
      this.size += this.has(key) ? 0 : 1;
      data[key] = (nativeCreate && value === undefined) ? HASH_UNDEFINED : value;
      return this;
    }

    // Add methods to `Hash`.
    Hash.prototype.clear = hashClear;
    Hash.prototype['delete'] = hashDelete;
    Hash.prototype.get = hashGet;
    Hash.prototype.has = hashHas;
    Hash.prototype.set = hashSet;

    /*------------------------------------------------------------------------*/

    /**
     * Creates an list cache object.
     *
     * @private
     * @constructor
     * @param {Array} [entries] The key-value pairs to cache.
     */
    function ListCache(entries) {
      var index = -1,
          length = entries == null ? 0 : entries.length;

      this.clear();
      while (++index < length) {
        var entry = entries[index];
        this.set(entry[0], entry[1]);
      }
    }

    /**
     * Removes all key-value entries from the list cache.
     *
     * @private
     * @name clear
     * @memberOf ListCache
     */
    function listCacheClear() {
      this.__data__ = [];
      this.size = 0;
    }

    /**
     * Removes `key` and its value from the list cache.
     *
     * @private
     * @name delete
     * @memberOf ListCache
     * @param {string} key The key of the value to remove.
     * @returns {boolean} Returns `true` if the entry was removed, else `false`.
     */
    function listCacheDelete(key) {
      var data = this.__data__,
          index = assocIndexOf(data, key);

      if (index < 0) {
        return false;
      }
      var lastIndex = data.length - 1;
      if (index == lastIndex) {
        data.pop();
      } else {
        splice.call(data, index, 1);
      }
      --this.size;
      return true;
    }

    /**
     * Gets the list cache value for `key`.
     *
     * @private
     * @name get
     * @memberOf ListCache
     * @param {string} key The key of the value to get.
     * @returns {*} Returns the entry value.
     */
    function listCacheGet(key) {
      var data = this.__data__,
          index = assocIndexOf(data, key);

      return index < 0 ? undefined : data[index][1];
    }

    /**
     * Checks if a list cache value for `key` exists.
     *
     * @private
     * @name has
     * @memberOf ListCache
     * @param {string} key The key of the entry to check.
     * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
     */
    function listCacheHas(key) {
      return assocIndexOf(this.__data__, key) > -1;
    }

    /**
     * Sets the list cache `key` to `value`.
     *
     * @private
     * @name set
     * @memberOf ListCache
     * @param {string} key The key of the value to set.
     * @param {*} value The value to set.
     * @returns {Object} Returns the list cache instance.
     */
    function listCacheSet(key, value) {
      var data = this.__data__,
          index = assocIndexOf(data, key);

      if (index < 0) {
        ++this.size;
        data.push([key, value]);
      } else {
        data[index][1] = value;
      }
      return this;
    }

    // Add methods to `ListCache`.
    ListCache.prototype.clear = listCacheClear;
    ListCache.prototype['delete'] = listCacheDelete;
    ListCache.prototype.get = listCacheGet;
    ListCache.prototype.has = listCacheHas;
    ListCache.prototype.set = listCacheSet;

    /*------------------------------------------------------------------------*/

    /**
     * Creates a map cache object to store key-value pairs.
     *
     * @private
     * @constructor
     * @param {Array} [entries] The key-value pairs to cache.
     */
    function MapCache(entries) {
      var index = -1,
          length = entries == null ? 0 : entries.length;

      this.clear();
      while (++index < length) {
        var entry = entries[index];
        this.set(entry[0], entry[1]);
      }
    }

    /**
     * Removes all key-value entries from the map.
     *
     * @private
     * @name clear
     * @memberOf MapCache
     */
    function mapCacheClear() {
      this.size = 0;
      this.__data__ = {
        'hash': new Hash,
        'map': new (Map || ListCache),
        'string': new Hash
      };
    }

    /**
     * Removes `key` and its value from the map.
     *
     * @private
     * @name delete
     * @memberOf MapCache
     * @param {string} key The key of the value to remove.
     * @returns {boolean} Returns `true` if the entry was removed, else `false`.
     */
    function mapCacheDelete(key) {
      var result = getMapData(this, key)['delete'](key);
      this.size -= result ? 1 : 0;
      return result;
    }

    /**
     * Gets the map value for `key`.
     *
     * @private
     * @name get
     * @memberOf MapCache
     * @param {string} key The key of the value to get.
     * @returns {*} Returns the entry value.
     */
    function mapCacheGet(key) {
      return getMapData(this, key).get(key);
    }

    /**
     * Checks if a map value for `key` exists.
     *
     * @private
     * @name has
     * @memberOf MapCache
     * @param {string} key The key of the entry to check.
     * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
     */
    function mapCacheHas(key) {
      return getMapData(this, key).has(key);
    }

    /**
     * Sets the map `key` to `value`.
     *
     * @private
     * @name set
     * @memberOf MapCache
     * @param {string} key The key of the value to set.
     * @param {*} value The value to set.
     * @returns {Object} Returns the map cache instance.
     */
    function mapCacheSet(key, value) {
      var data = getMapData(this, key),
          size = data.size;

      data.set(key, value);
      this.size += data.size == size ? 0 : 1;
      return this;
    }

    // Add methods to `MapCache`.
    MapCache.prototype.clear = mapCacheClear;
    MapCache.prototype['delete'] = mapCacheDelete;
    MapCache.prototype.get = mapCacheGet;
    MapCache.prototype.has = mapCacheHas;
    MapCache.prototype.set = mapCacheSet;

    /*------------------------------------------------------------------------*/

    /**
     *
     * Creates an array cache object to store unique values.
     *
     * @private
     * @constructor
     * @param {Array} [values] The values to cache.
     */
    function SetCache(values) {
      var index = -1,
          length = values == null ? 0 : values.length;

      this.__data__ = new MapCache;
      while (++index < length) {
        this.add(values[index]);
      }
    }

    /**
     * Adds `value` to the array cache.
     *
     * @private
     * @name add
     * @memberOf SetCache
     * @alias push
     * @param {*} value The value to cache.
     * @returns {Object} Returns the cache instance.
     */
    function setCacheAdd(value) {
      this.__data__.set(value, HASH_UNDEFINED);
      return this;
    }

    /**
     * Checks if `value` is in the array cache.
     *
     * @private
     * @name has
     * @memberOf SetCache
     * @param {*} value The value to search for.
     * @returns {number} Returns `true` if `value` is found, else `false`.
     */
    function setCacheHas(value) {
      return this.__data__.has(value);
    }

    // Add methods to `SetCache`.
    SetCache.prototype.add = SetCache.prototype.push = setCacheAdd;
    SetCache.prototype.has = setCacheHas;

    /*------------------------------------------------------------------------*/

    /**
     * Creates a stack cache object to store key-value pairs.
     *
     * @private
     * @constructor
     * @param {Array} [entries] The key-value pairs to cache.
     */
    function Stack(entries) {
      var data = this.__data__ = new ListCache(entries);
      this.size = data.size;
    }

    /**
     * Removes all key-value entries from the stack.
     *
     * @private
     * @name clear
     * @memberOf Stack
     */
    function stackClear() {
      this.__data__ = new ListCache;
      this.size = 0;
    }

    /**
     * Removes `key` and its value from the stack.
     *
     * @private
     * @name delete
     * @memberOf Stack
     * @param {string} key The key of the value to remove.
     * @returns {boolean} Returns `true` if the entry was removed, else `false`.
     */
    function stackDelete(key) {
      var data = this.__data__,
          result = data['delete'](key);

      this.size = data.size;
      return result;
    }

    /**
     * Gets the stack value for `key`.
     *
     * @private
     * @name get
     * @memberOf Stack
     * @param {string} key The key of the value to get.
     * @returns {*} Returns the entry value.
     */
    function stackGet(key) {
      return this.__data__.get(key);
    }

    /**
     * Checks if a stack value for `key` exists.
     *
     * @private
     * @name has
     * @memberOf Stack
     * @param {string} key The key of the entry to check.
     * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
     */
    function stackHas(key) {
      return this.__data__.has(key);
    }

    /**
     * Sets the stack `key` to `value`.
     *
     * @private
     * @name set
     * @memberOf Stack
     * @param {string} key The key of the value to set.
     * @param {*} value The value to set.
     * @returns {Object} Returns the stack cache instance.
     */
    function stackSet(key, value) {
      var data = this.__data__;
      if (data instanceof ListCache) {
        var pairs = data.__data__;
        if (!Map || (pairs.length < LARGE_ARRAY_SIZE - 1)) {
          pairs.push([key, value]);
          this.size = ++data.size;
          return this;
        }
        data = this.__data__ = new MapCache(pairs);
      }
      data.set(key, value);
      this.size = data.size;
      return this;
    }

    // Add methods to `Stack`.
    Stack.prototype.clear = stackClear;
    Stack.prototype['delete'] = stackDelete;
    Stack.prototype.get = stackGet;
    Stack.prototype.has = stackHas;
    Stack.prototype.set = stackSet;

    /*------------------------------------------------------------------------*/

    /**
     * Creates an array of the enumerable property names of the array-like `value`.
     *
     * @private
     * @param {*} value The value to query.
     * @param {boolean} inherited Specify returning inherited property names.
     * @returns {Array} Returns the array of property names.
     */
    function arrayLikeKeys(value, inherited) {
      var isArr = isArray(value),
          isArg = !isArr && isArguments(value),
          isBuff = !isArr && !isArg && isBuffer(value),
          isType = !isArr && !isArg && !isBuff && isTypedArray(value),
          skipIndexes = isArr || isArg || isBuff || isType,
          result = skipIndexes ? baseTimes(value.length, String) : [],
          length = result.length;

      for (var key in value) {
        if ((inherited || hasOwnProperty.call(value, key)) &&
            !(skipIndexes && (
               // Safari 9 has enumerable `arguments.length` in strict mode.
               key == 'length' ||
               // Node.js 0.10 has enumerable non-index properties on buffers.
               (isBuff && (key == 'offset' || key == 'parent')) ||
               // PhantomJS 2 has enumerable non-index properties on typed arrays.
               (isType && (key == 'buffer' || key == 'byteLength' || key == 'byteOffset')) ||
               // Skip index properties.
               isIndex(key, length)
            ))) {
          result.push(key);
        }
      }
      return result;
    }

    /**
     * A specialized version of `_.sample` for arrays.
     *
     * @private
     * @param {Array} array The array to sample.
     * @returns {*} Returns the random element.
     */
    function arraySample(array) {
      var length = array.length;
      return length ? array[baseRandom(0, length - 1)] : undefined;
    }

    /**
     * A specialized version of `_.sampleSize` for arrays.
     *
     * @private
     * @param {Array} array The array to sample.
     * @param {number} n The number of elements to sample.
     * @returns {Array} Returns the random elements.
     */
    function arraySampleSize(array, n) {
      return shuffleSelf(copyArray(array), baseClamp(n, 0, array.length));
    }

    /**
     * A specialized version of `_.shuffle` for arrays.
     *
     * @private
     * @param {Array} array The array to shuffle.
     * @returns {Array} Returns the new shuffled array.
     */
    function arrayShuffle(array) {
      return shuffleSelf(copyArray(array));
    }

    /**
     * This function is like `assignValue` except that it doesn't assign
     * `undefined` values.
     *
     * @private
     * @param {Object} object The object to modify.
     * @param {string} key The key of the property to assign.
     * @param {*} value The value to assign.
     */
    function assignMergeValue(object, key, value) {
      if ((value !== undefined && !eq(object[key], value)) ||
          (value === undefined && !(key in object))) {
        baseAssignValue(object, key, value);
      }
    }

    /**
     * Assigns `value` to `key` of `object` if the existing value is not equivalent
     * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
     * for equality comparisons.
     *
     * @private
     * @param {Object} object The object to modify.
     * @param {string} key The key of the property to assign.
     * @param {*} value The value to assign.
     */
    function assignValue(object, key, value) {
      var objValue = object[key];
      if (!(hasOwnProperty.call(object, key) && eq(objValue, value)) ||
          (value === undefined && !(key in object))) {
        baseAssignValue(object, key, value);
      }
    }

    /**
     * Gets the index at which the `key` is found in `array` of key-value pairs.
     *
     * @private
     * @param {Array} array The array to inspect.
     * @param {*} key The key to search for.
     * @returns {number} Returns the index of the matched value, else `-1`.
     */
    function assocIndexOf(array, key) {
      var length = array.length;
      while (length--) {
        if (eq(array[length][0], key)) {
          return length;
        }
      }
      return -1;
    }

    /**
     * Aggregates elements of `collection` on `accumulator` with keys transformed
     * by `iteratee` and values set by `setter`.
     *
     * @private
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} setter The function to set `accumulator` values.
     * @param {Function} iteratee The iteratee to transform keys.
     * @param {Object} accumulator The initial aggregated object.
     * @returns {Function} Returns `accumulator`.
     */
    function baseAggregator(collection, setter, iteratee, accumulator) {
      baseEach(collection, function(value, key, collection) {
        setter(accumulator, value, iteratee(value), collection);
      });
      return accumulator;
    }

    /**
     * The base implementation of `_.assign` without support for multiple sources
     * or `customizer` functions.
     *
     * @private
     * @param {Object} object The destination object.
     * @param {Object} source The source object.
     * @returns {Object} Returns `object`.
     */
    function baseAssign(object, source) {
      return object && copyObject(source, keys(source), object);
    }

    /**
     * The base implementation of `_.assignIn` without support for multiple sources
     * or `customizer` functions.
     *
     * @private
     * @param {Object} object The destination object.
     * @param {Object} source The source object.
     * @returns {Object} Returns `object`.
     */
    function baseAssignIn(object, source) {
      return object && copyObject(source, keysIn(source), object);
    }

    /**
     * The base implementation of `assignValue` and `assignMergeValue` without
     * value checks.
     *
     * @private
     * @param {Object} object The object to modify.
     * @param {string} key The key of the property to assign.
     * @param {*} value The value to assign.
     */
    function baseAssignValue(object, key, value) {
      if (key == '__proto__' && defineProperty) {
        defineProperty(object, key, {
          'configurable': true,
          'enumerable': true,
          'value': value,
          'writable': true
        });
      } else {
        object[key] = value;
      }
    }

    /**
     * The base implementation of `_.at` without support for individual paths.
     *
     * @private
     * @param {Object} object The object to iterate over.
     * @param {string[]} paths The property paths to pick.
     * @returns {Array} Returns the picked elements.
     */
    function baseAt(object, paths) {
      var index = -1,
          length = paths.length,
          result = Array(length),
          skip = object == null;

      while (++index < length) {
        result[index] = skip ? undefined : get(object, paths[index]);
      }
      return result;
    }

    /**
     * The base implementation of `_.clamp` which doesn't coerce arguments.
     *
     * @private
     * @param {number} number The number to clamp.
     * @param {number} [lower] The lower bound.
     * @param {number} upper The upper bound.
     * @returns {number} Returns the clamped number.
     */
    function baseClamp(number, lower, upper) {
      if (number === number) {
        if (upper !== undefined) {
          number = number <= upper ? number : upper;
        }
        if (lower !== undefined) {
          number = number >= lower ? number : lower;
        }
      }
      return number;
    }

    /**
     * The base implementation of `_.clone` and `_.cloneDeep` which tracks
     * traversed objects.
     *
     * @private
     * @param {*} value The value to clone.
     * @param {boolean} bitmask The bitmask flags.
     *  1 - Deep clone
     *  2 - Flatten inherited properties
     *  4 - Clone symbols
     * @param {Function} [customizer] The function to customize cloning.
     * @param {string} [key] The key of `value`.
     * @param {Object} [object] The parent object of `value`.
     * @param {Object} [stack] Tracks traversed objects and their clone counterparts.
     * @returns {*} Returns the cloned value.
     */
    function baseClone(value, bitmask, customizer, key, object, stack) {
      var result,
          isDeep = bitmask & CLONE_DEEP_FLAG,
          isFlat = bitmask & CLONE_FLAT_FLAG,
          isFull = bitmask & CLONE_SYMBOLS_FLAG;

      if (customizer) {
        result = object ? customizer(value, key, object, stack) : customizer(value);
      }
      if (result !== undefined) {
        return result;
      }
      if (!isObject(value)) {
        return value;
      }
      var isArr = isArray(value);
      if (isArr) {
        result = initCloneArray(value);
        if (!isDeep) {
          return copyArray(value, result);
        }
      } else {
        var tag = getTag(value),
            isFunc = tag == funcTag || tag == genTag;

        if (isBuffer(value)) {
          return cloneBuffer(value, isDeep);
        }
        if (tag == objectTag || tag == argsTag || (isFunc && !object)) {
          result = (isFlat || isFunc) ? {} : initCloneObject(value);
          if (!isDeep) {
            return isFlat
              ? copySymbolsIn(value, baseAssignIn(result, value))
              : copySymbols(value, baseAssign(result, value));
          }
        } else {
          if (!cloneableTags[tag]) {
            return object ? value : {};
          }
          result = initCloneByTag(value, tag, baseClone, isDeep);
        }
      }
      // Check for circular references and return its corresponding clone.
      stack || (stack = new Stack);
      var stacked = stack.get(value);
      if (stacked) {
        return stacked;
      }
      stack.set(value, result);

      var keysFunc = isFull
        ? (isFlat ? getAllKeysIn : getAllKeys)
        : (isFlat ? keysIn : keys);

      var props = isArr ? undefined : keysFunc(value);
      arrayEach(props || value, function(subValue, key) {
        if (props) {
          key = subValue;
          subValue = value[key];
        }
        // Recursively populate clone (susceptible to call stack limits).
        assignValue(result, key, baseClone(subValue, bitmask, customizer, key, value, stack));
      });
      return result;
    }

    /**
     * The base implementation of `_.conforms` which doesn't clone `source`.
     *
     * @private
     * @param {Object} source The object of property predicates to conform to.
     * @returns {Function} Returns the new spec function.
     */
    function baseConforms(source) {
      var props = keys(source);
      return function(object) {
        return baseConformsTo(object, source, props);
      };
    }

    /**
     * The base implementation of `_.conformsTo` which accepts `props` to check.
     *
     * @private
     * @param {Object} object The object to inspect.
     * @param {Object} source The object of property predicates to conform to.
     * @returns {boolean} Returns `true` if `object` conforms, else `false`.
     */
    function baseConformsTo(object, source, props) {
      var length = props.length;
      if (object == null) {
        return !length;
      }
      object = Object(object);
      while (length--) {
        var key = props[length],
            predicate = source[key],
            value = object[key];

        if ((value === undefined && !(key in object)) || !predicate(value)) {
          return false;
        }
      }
      return true;
    }

    /**
     * The base implementation of `_.delay` and `_.defer` which accepts `args`
     * to provide to `func`.
     *
     * @private
     * @param {Function} func The function to delay.
     * @param {number} wait The number of milliseconds to delay invocation.
     * @param {Array} args The arguments to provide to `func`.
     * @returns {number|Object} Returns the timer id or timeout object.
     */
    function baseDelay(func, wait, args) {
      if (typeof func != 'function') {
        throw new TypeError(FUNC_ERROR_TEXT);
      }
      return setTimeout(function() { func.apply(undefined, args); }, wait);
    }

    /**
     * The base implementation of methods like `_.difference` without support
     * for excluding multiple arrays or iteratee shorthands.
     *
     * @private
     * @param {Array} array The array to inspect.
     * @param {Array} values The values to exclude.
     * @param {Function} [iteratee] The iteratee invoked per element.
     * @param {Function} [comparator] The comparator invoked per element.
     * @returns {Array} Returns the new array of filtered values.
     */
    function baseDifference(array, values, iteratee, comparator) {
      var index = -1,
          includes = arrayIncludes,
          isCommon = true,
          length = array.length,
          result = [],
          valuesLength = values.length;

      if (!length) {
        return result;
      }
      if (iteratee) {
        values = arrayMap(values, baseUnary(iteratee));
      }
      if (comparator) {
        includes = arrayIncludesWith;
        isCommon = false;
      }
      else if (values.length >= LARGE_ARRAY_SIZE) {
        includes = cacheHas;
        isCommon = false;
        values = new SetCache(values);
      }
      outer:
      while (++index < length) {
        var value = array[index],
            computed = iteratee == null ? value : iteratee(value);

        value = (comparator || value !== 0) ? value : 0;
        if (isCommon && computed === computed) {
          var valuesIndex = valuesLength;
          while (valuesIndex--) {
            if (values[valuesIndex] === computed) {
              continue outer;
            }
          }
          result.push(value);
        }
        else if (!includes(values, computed, comparator)) {
          result.push(value);
        }
      }
      return result;
    }

    /**
     * The base implementation of `_.forEach` without support for iteratee shorthands.
     *
     * @private
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @returns {Array|Object} Returns `collection`.
     */
    var baseEach = createBaseEach(baseForOwn);

    /**
     * The base implementation of `_.forEachRight` without support for iteratee shorthands.
     *
     * @private
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @returns {Array|Object} Returns `collection`.
     */
    var baseEachRight = createBaseEach(baseForOwnRight, true);

    /**
     * The base implementation of `_.every` without support for iteratee shorthands.
     *
     * @private
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} predicate The function invoked per iteration.
     * @returns {boolean} Returns `true` if all elements pass the predicate check,
     *  else `false`
     */
    function baseEvery(collection, predicate) {
      var result = true;
      baseEach(collection, function(value, index, collection) {
        result = !!predicate(value, index, collection);
        return result;
      });
      return result;
    }

    /**
     * The base implementation of methods like `_.max` and `_.min` which accepts a
     * `comparator` to determine the extremum value.
     *
     * @private
     * @param {Array} array The array to iterate over.
     * @param {Function} iteratee The iteratee invoked per iteration.
     * @param {Function} comparator The comparator used to compare values.
     * @returns {*} Returns the extremum value.
     */
    function baseExtremum(array, iteratee, comparator) {
      var index = -1,
          length = array.length;

      while (++index < length) {
        var value = array[index],
            current = iteratee(value);

        if (current != null && (computed === undefined
              ? (current === current && !isSymbol(current))
              : comparator(current, computed)
            )) {
          var computed = current,
              result = value;
        }
      }
      return result;
    }

    /**
     * The base implementation of `_.fill` without an iteratee call guard.
     *
     * @private
     * @param {Array} array The array to fill.
     * @param {*} value The value to fill `array` with.
     * @param {number} [start=0] The start position.
     * @param {number} [end=array.length] The end position.
     * @returns {Array} Returns `array`.
     */
    function baseFill(array, value, start, end) {
      var length = array.length;

      start = toInteger(start);
      if (start < 0) {
        start = -start > length ? 0 : (length + start);
      }
      end = (end === undefined || end > length) ? length : toInteger(end);
      if (end < 0) {
        end += length;
      }
      end = start > end ? 0 : toLength(end);
      while (start < end) {
        array[start++] = value;
      }
      return array;
    }

    /**
     * The base implementation of `_.filter` without support for iteratee shorthands.
     *
     * @private
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} predicate The function invoked per iteration.
     * @returns {Array} Returns the new filtered array.
     */
    function baseFilter(collection, predicate) {
      var result = [];
      baseEach(collection, function(value, index, collection) {
        if (predicate(value, index, collection)) {
          result.push(value);
        }
      });
      return result;
    }

    /**
     * The base implementation of `_.flatten` with support for restricting flattening.
     *
     * @private
     * @param {Array} array The array to flatten.
     * @param {number} depth The maximum recursion depth.
     * @param {boolean} [predicate=isFlattenable] The function invoked per iteration.
     * @param {boolean} [isStrict] Restrict to values that pass `predicate` checks.
     * @param {Array} [result=[]] The initial result value.
     * @returns {Array} Returns the new flattened array.
     */
    function baseFlatten(array, depth, predicate, isStrict, result) {
      var index = -1,
          length = array.length;

      predicate || (predicate = isFlattenable);
      result || (result = []);

      while (++index < length) {
        var value = array[index];
        if (depth > 0 && predicate(value)) {
          if (depth > 1) {
            // Recursively flatten arrays (susceptible to call stack limits).
            baseFlatten(value, depth - 1, predicate, isStrict, result);
          } else {
            arrayPush(result, value);
          }
        } else if (!isStrict) {
          result[result.length] = value;
        }
      }
      return result;
    }

    /**
     * The base implementation of `baseForOwn` which iterates over `object`
     * properties returned by `keysFunc` and invokes `iteratee` for each property.
     * Iteratee functions may exit iteration early by explicitly returning `false`.
     *
     * @private
     * @param {Object} object The object to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @param {Function} keysFunc The function to get the keys of `object`.
     * @returns {Object} Returns `object`.
     */
    var baseFor = createBaseFor();

    /**
     * This function is like `baseFor` except that it iterates over properties
     * in the opposite order.
     *
     * @private
     * @param {Object} object The object to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @param {Function} keysFunc The function to get the keys of `object`.
     * @returns {Object} Returns `object`.
     */
    var baseForRight = createBaseFor(true);

    /**
     * The base implementation of `_.forOwn` without support for iteratee shorthands.
     *
     * @private
     * @param {Object} object The object to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @returns {Object} Returns `object`.
     */
    function baseForOwn(object, iteratee) {
      return object && baseFor(object, iteratee, keys);
    }

    /**
     * The base implementation of `_.forOwnRight` without support for iteratee shorthands.
     *
     * @private
     * @param {Object} object The object to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @returns {Object} Returns `object`.
     */
    function baseForOwnRight(object, iteratee) {
      return object && baseForRight(object, iteratee, keys);
    }

    /**
     * The base implementation of `_.functions` which creates an array of
     * `object` function property names filtered from `props`.
     *
     * @private
     * @param {Object} object The object to inspect.
     * @param {Array} props The property names to filter.
     * @returns {Array} Returns the function names.
     */
    function baseFunctions(object, props) {
      return arrayFilter(props, function(key) {
        return isFunction(object[key]);
      });
    }

    /**
     * The base implementation of `_.get` without support for default values.
     *
     * @private
     * @param {Object} object The object to query.
     * @param {Array|string} path The path of the property to get.
     * @returns {*} Returns the resolved value.
     */
    function baseGet(object, path) {
      path = castPath(path, object);

      var index = 0,
          length = path.length;

      while (object != null && index < length) {
        object = object[toKey(path[index++])];
      }
      return (index && index == length) ? object : undefined;
    }

    /**
     * The base implementation of `getAllKeys` and `getAllKeysIn` which uses
     * `keysFunc` and `symbolsFunc` to get the enumerable property names and
     * symbols of `object`.
     *
     * @private
     * @param {Object} object The object to query.
     * @param {Function} keysFunc The function to get the keys of `object`.
     * @param {Function} symbolsFunc The function to get the symbols of `object`.
     * @returns {Array} Returns the array of property names and symbols.
     */
    function baseGetAllKeys(object, keysFunc, symbolsFunc) {
      var result = keysFunc(object);
      return isArray(object) ? result : arrayPush(result, symbolsFunc(object));
    }

    /**
     * The base implementation of `getTag` without fallbacks for buggy environments.
     *
     * @private
     * @param {*} value The value to query.
     * @returns {string} Returns the `toStringTag`.
     */
    function baseGetTag(value) {
      if (value == null) {
        return value === undefined ? undefinedTag : nullTag;
      }
      return (symToStringTag && symToStringTag in Object(value))
        ? getRawTag(value)
        : objectToString(value);
    }

    /**
     * The base implementation of `_.gt` which doesn't coerce arguments.
     *
     * @private
     * @param {*} value The value to compare.
     * @param {*} other The other value to compare.
     * @returns {boolean} Returns `true` if `value` is greater than `other`,
     *  else `false`.
     */
    function baseGt(value, other) {
      return value > other;
    }

    /**
     * The base implementation of `_.has` without support for deep paths.
     *
     * @private
     * @param {Object} [object] The object to query.
     * @param {Array|string} key The key to check.
     * @returns {boolean} Returns `true` if `key` exists, else `false`.
     */
    function baseHas(object, key) {
      return object != null && hasOwnProperty.call(object, key);
    }

    /**
     * The base implementation of `_.hasIn` without support for deep paths.
     *
     * @private
     * @param {Object} [object] The object to query.
     * @param {Array|string} key The key to check.
     * @returns {boolean} Returns `true` if `key` exists, else `false`.
     */
    function baseHasIn(object, key) {
      return object != null && key in Object(object);
    }

    /**
     * The base implementation of `_.inRange` which doesn't coerce arguments.
     *
     * @private
     * @param {number} number The number to check.
     * @param {number} start The start of the range.
     * @param {number} end The end of the range.
     * @returns {boolean} Returns `true` if `number` is in the range, else `false`.
     */
    function baseInRange(number, start, end) {
      return number >= nativeMin(start, end) && number < nativeMax(start, end);
    }

    /**
     * The base implementation of methods like `_.intersection`, without support
     * for iteratee shorthands, that accepts an array of arrays to inspect.
     *
     * @private
     * @param {Array} arrays The arrays to inspect.
     * @param {Function} [iteratee] The iteratee invoked per element.
     * @param {Function} [comparator] The comparator invoked per element.
     * @returns {Array} Returns the new array of shared values.
     */
    function baseIntersection(arrays, iteratee, comparator) {
      var includes = comparator ? arrayIncludesWith : arrayIncludes,
          length = arrays[0].length,
          othLength = arrays.length,
          othIndex = othLength,
          caches = Array(othLength),
          maxLength = Infinity,
          result = [];

      while (othIndex--) {
        var array = arrays[othIndex];
        if (othIndex && iteratee) {
          array = arrayMap(array, baseUnary(iteratee));
        }
        maxLength = nativeMin(array.length, maxLength);
        caches[othIndex] = !comparator && (iteratee || (length >= 120 && array.length >= 120))
          ? new SetCache(othIndex && array)
          : undefined;
      }
      array = arrays[0];

      var index = -1,
          seen = caches[0];

      outer:
      while (++index < length && result.length < maxLength) {
        var value = array[index],
            computed = iteratee ? iteratee(value) : value;

        value = (comparator || value !== 0) ? value : 0;
        if (!(seen
              ? cacheHas(seen, computed)
              : includes(result, computed, comparator)
            )) {
          othIndex = othLength;
          while (--othIndex) {
            var cache = caches[othIndex];
            if (!(cache
                  ? cacheHas(cache, computed)
                  : includes(arrays[othIndex], computed, comparator))
                ) {
              continue outer;
            }
          }
          if (seen) {
            seen.push(computed);
          }
          result.push(value);
        }
      }
      return result;
    }

    /**
     * The base implementation of `_.invert` and `_.invertBy` which inverts
     * `object` with values transformed by `iteratee` and set by `setter`.
     *
     * @private
     * @param {Object} object The object to iterate over.
     * @param {Function} setter The function to set `accumulator` values.
     * @param {Function} iteratee The iteratee to transform values.
     * @param {Object} accumulator The initial inverted object.
     * @returns {Function} Returns `accumulator`.
     */
    function baseInverter(object, setter, iteratee, accumulator) {
      baseForOwn(object, function(value, key, object) {
        setter(accumulator, iteratee(value), key, object);
      });
      return accumulator;
    }

    /**
     * The base implementation of `_.invoke` without support for individual
     * method arguments.
     *
     * @private
     * @param {Object} object The object to query.
     * @param {Array|string} path The path of the method to invoke.
     * @param {Array} args The arguments to invoke the method with.
     * @returns {*} Returns the result of the invoked method.
     */
    function baseInvoke(object, path, args) {
      path = castPath(path, object);
      object = parent(object, path);
      var func = object == null ? object : object[toKey(last(path))];
      return func == null ? undefined : apply(func, object, args);
    }

    /**
     * The base implementation of `_.isArguments`.
     *
     * @private
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is an `arguments` object,
     */
    function baseIsArguments(value) {
      return isObjectLike(value) && baseGetTag(value) == argsTag;
    }

    /**
     * The base implementation of `_.isArrayBuffer` without Node.js optimizations.
     *
     * @private
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is an array buffer, else `false`.
     */
    function baseIsArrayBuffer(value) {
      return isObjectLike(value) && baseGetTag(value) == arrayBufferTag;
    }

    /**
     * The base implementation of `_.isDate` without Node.js optimizations.
     *
     * @private
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a date object, else `false`.
     */
    function baseIsDate(value) {
      return isObjectLike(value) && baseGetTag(value) == dateTag;
    }

    /**
     * The base implementation of `_.isEqual` which supports partial comparisons
     * and tracks traversed objects.
     *
     * @private
     * @param {*} value The value to compare.
     * @param {*} other The other value to compare.
     * @param {boolean} bitmask The bitmask flags.
     *  1 - Unordered comparison
     *  2 - Partial comparison
     * @param {Function} [customizer] The function to customize comparisons.
     * @param {Object} [stack] Tracks traversed `value` and `other` objects.
     * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
     */
    function baseIsEqual(value, other, bitmask, customizer, stack) {
      if (value === other) {
        return true;
      }
      if (value == null || other == null || (!isObjectLike(value) && !isObjectLike(other))) {
        return value !== value && other !== other;
      }
      return baseIsEqualDeep(value, other, bitmask, customizer, baseIsEqual, stack);
    }

    /**
     * A specialized version of `baseIsEqual` for arrays and objects which performs
     * deep comparisons and tracks traversed objects enabling objects with circular
     * references to be compared.
     *
     * @private
     * @param {Object} object The object to compare.
     * @param {Object} other The other object to compare.
     * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.
     * @param {Function} customizer The function to customize comparisons.
     * @param {Function} equalFunc The function to determine equivalents of values.
     * @param {Object} [stack] Tracks traversed `object` and `other` objects.
     * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
     */
    function baseIsEqualDeep(object, other, bitmask, customizer, equalFunc, stack) {
      var objIsArr = isArray(object),
          othIsArr = isArray(other),
          objTag = objIsArr ? arrayTag : getTag(object),
          othTag = othIsArr ? arrayTag : getTag(other);

      objTag = objTag == argsTag ? objectTag : objTag;
      othTag = othTag == argsTag ? objectTag : othTag;

      var objIsObj = objTag == objectTag,
          othIsObj = othTag == objectTag,
          isSameTag = objTag == othTag;

      if (isSameTag && isBuffer(object)) {
        if (!isBuffer(other)) {
          return false;
        }
        objIsArr = true;
        objIsObj = false;
      }
      if (isSameTag && !objIsObj) {
        stack || (stack = new Stack);
        return (objIsArr || isTypedArray(object))
          ? equalArrays(object, other, bitmask, customizer, equalFunc, stack)
          : equalByTag(object, other, objTag, bitmask, customizer, equalFunc, stack);
      }
      if (!(bitmask & COMPARE_PARTIAL_FLAG)) {
        var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'),
            othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__');

        if (objIsWrapped || othIsWrapped) {
          var objUnwrapped = objIsWrapped ? object.value() : object,
              othUnwrapped = othIsWrapped ? other.value() : other;

          stack || (stack = new Stack);
          return equalFunc(objUnwrapped, othUnwrapped, bitmask, customizer, stack);
        }
      }
      if (!isSameTag) {
        return false;
      }
      stack || (stack = new Stack);
      return equalObjects(object, other, bitmask, customizer, equalFunc, stack);
    }

    /**
     * The base implementation of `_.isMap` without Node.js optimizations.
     *
     * @private
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a map, else `false`.
     */
    function baseIsMap(value) {
      return isObjectLike(value) && getTag(value) == mapTag;
    }

    /**
     * The base implementation of `_.isMatch` without support for iteratee shorthands.
     *
     * @private
     * @param {Object} object The object to inspect.
     * @param {Object} source The object of property values to match.
     * @param {Array} matchData The property names, values, and compare flags to match.
     * @param {Function} [customizer] The function to customize comparisons.
     * @returns {boolean} Returns `true` if `object` is a match, else `false`.
     */
    function baseIsMatch(object, source, matchData, customizer) {
      var index = matchData.length,
          length = index,
          noCustomizer = !customizer;

      if (object == null) {
        return !length;
      }
      object = Object(object);
      while (index--) {
        var data = matchData[index];
        if ((noCustomizer && data[2])
              ? data[1] !== object[data[0]]
              : !(data[0] in object)
            ) {
          return false;
        }
      }
      while (++index < length) {
        data = matchData[index];
        var key = data[0],
            objValue = object[key],
            srcValue = data[1];

        if (noCustomizer && data[2]) {
          if (objValue === undefined && !(key in object)) {
            return false;
          }
        } else {
          var stack = new Stack;
          if (customizer) {
            var result = customizer(objValue, srcValue, key, object, source, stack);
          }
          if (!(result === undefined
                ? baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG, customizer, stack)
                : result
              )) {
            return false;
          }
        }
      }
      return true;
    }

    /**
     * The base implementation of `_.isNative` without bad shim checks.
     *
     * @private
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a native function,
     *  else `false`.
     */
    function baseIsNative(value) {
      if (!isObject(value) || isMasked(value)) {
        return false;
      }
      var pattern = isFunction(value) ? reIsNative : reIsHostCtor;
      return pattern.test(toSource(value));
    }

    /**
     * The base implementation of `_.isRegExp` without Node.js optimizations.
     *
     * @private
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a regexp, else `false`.
     */
    function baseIsRegExp(value) {
      return isObjectLike(value) && baseGetTag(value) == regexpTag;
    }

    /**
     * The base implementation of `_.isSet` without Node.js optimizations.
     *
     * @private
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a set, else `false`.
     */
    function baseIsSet(value) {
      return isObjectLike(value) && getTag(value) == setTag;
    }

    /**
     * The base implementation of `_.isTypedArray` without Node.js optimizations.
     *
     * @private
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.
     */
    function baseIsTypedArray(value) {
      return isObjectLike(value) &&
        isLength(value.length) && !!typedArrayTags[baseGetTag(value)];
    }

    /**
     * The base implementation of `_.iteratee`.
     *
     * @private
     * @param {*} [value=_.identity] The value to convert to an iteratee.
     * @returns {Function} Returns the iteratee.
     */
    function baseIteratee(value) {
      // Don't store the `typeof` result in a variable to avoid a JIT bug in Safari 9.
      // See https://bugs.webkit.org/show_bug.cgi?id=156034 for more details.
      if (typeof value == 'function') {
        return value;
      }
      if (value == null) {
        return identity;
      }
      if (typeof value == 'object') {
        return isArray(value)
          ? baseMatchesProperty(value[0], value[1])
          : baseMatches(value);
      }
      return property(value);
    }

    /**
     * The base implementation of `_.keys` which doesn't treat sparse arrays as dense.
     *
     * @private
     * @param {Object} object The object to query.
     * @returns {Array} Returns the array of property names.
     */
    function baseKeys(object) {
      if (!isPrototype(object)) {
        return nativeKeys(object);
      }
      var result = [];
      for (var key in Object(object)) {
        if (hasOwnProperty.call(object, key) && key != 'constructor') {
          result.push(key);
        }
      }
      return result;
    }

    /**
     * The base implementation of `_.keysIn` which doesn't treat sparse arrays as dense.
     *
     * @private
     * @param {Object} object The object to query.
     * @returns {Array} Returns the array of property names.
     */
    function baseKeysIn(object) {
      if (!isObject(object)) {
        return nativeKeysIn(object);
      }
      var isProto = isPrototype(object),
          result = [];

      for (var key in object) {
        if (!(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) {
          result.push(key);
        }
      }
      return result;
    }

    /**
     * The base implementation of `_.lt` which doesn't coerce arguments.
     *
     * @private
     * @param {*} value The value to compare.
     * @param {*} other The other value to compare.
     * @returns {boolean} Returns `true` if `value` is less than `other`,
     *  else `false`.
     */
    function baseLt(value, other) {
      return value < other;
    }

    /**
     * The base implementation of `_.map` without support for iteratee shorthands.
     *
     * @private
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @returns {Array} Returns the new mapped array.
     */
    function baseMap(collection, iteratee) {
      var index = -1,
          result = isArrayLike(collection) ? Array(collection.length) : [];

      baseEach(collection, function(value, key, collection) {
        result[++index] = iteratee(value, key, collection);
      });
      return result;
    }

    /**
     * The base implementation of `_.matches` which doesn't clone `source`.
     *
     * @private
     * @param {Object} source The object of property values to match.
     * @returns {Function} Returns the new spec function.
     */
    function baseMatches(source) {
      var matchData = getMatchData(source);
      if (matchData.length == 1 && matchData[0][2]) {
        return matchesStrictComparable(matchData[0][0], matchData[0][1]);
      }
      return function(object) {
        return object === source || baseIsMatch(object, source, matchData);
      };
    }

    /**
     * The base implementation of `_.matchesProperty` which doesn't clone `srcValue`.
     *
     * @private
     * @param {string} path The path of the property to get.
     * @param {*} srcValue The value to match.
     * @returns {Function} Returns the new spec function.
     */
    function baseMatchesProperty(path, srcValue) {
      if (isKey(path) && isStrictComparable(srcValue)) {
        return matchesStrictComparable(toKey(path), srcValue);
      }
      return function(object) {
        var objValue = get(object, path);
        return (objValue === undefined && objValue === srcValue)
          ? hasIn(object, path)
          : baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG);
      };
    }

    /**
     * The base implementation of `_.merge` without support for multiple sources.
     *
     * @private
     * @param {Object} object The destination object.
     * @param {Object} source The source object.
     * @param {number} srcIndex The index of `source`.
     * @param {Function} [customizer] The function to customize merged values.
     * @param {Object} [stack] Tracks traversed source values and their merged
     *  counterparts.
     */
    function baseMerge(object, source, srcIndex, customizer, stack) {
      if (object === source) {
        return;
      }
      baseFor(source, function(srcValue, key) {
        if (isObject(srcValue)) {
          stack || (stack = new Stack);
          baseMergeDeep(object, source, key, srcIndex, baseMerge, customizer, stack);
        }
        else {
          var newValue = customizer
            ? customizer(object[key], srcValue, (key + ''), object, source, stack)
            : undefined;

          if (newValue === undefined) {
            newValue = srcValue;
          }
          assignMergeValue(object, key, newValue);
        }
      }, keysIn);
    }

    /**
     * A specialized version of `baseMerge` for arrays and objects which performs
     * deep merges and tracks traversed objects enabling objects with circular
     * references to be merged.
     *
     * @private
     * @param {Object} object The destination object.
     * @param {Object} source The source object.
     * @param {string} key The key of the value to merge.
     * @param {number} srcIndex The index of `source`.
     * @param {Function} mergeFunc The function to merge values.
     * @param {Function} [customizer] The function to customize assigned values.
     * @param {Object} [stack] Tracks traversed source values and their merged
     *  counterparts.
     */
    function baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, stack) {
      var objValue = object[key],
          srcValue = source[key],
          stacked = stack.get(srcValue);

      if (stacked) {
        assignMergeValue(object, key, stacked);
        return;
      }
      var newValue = customizer
        ? customizer(objValue, srcValue, (key + ''), object, source, stack)
        : undefined;

      var isCommon = newValue === undefined;

      if (isCommon) {
        var isArr = isArray(srcValue),
            isBuff = !isArr && isBuffer(srcValue),
            isTyped = !isArr && !isBuff && isTypedArray(srcValue);

        newValue = srcValue;
        if (isArr || isBuff || isTyped) {
          if (isArray(objValue)) {
            newValue = objValue;
          }
          else if (isArrayLikeObject(objValue)) {
            newValue = copyArray(objValue);
          }
          else if (isBuff) {
            isCommon = false;
            newValue = cloneBuffer(srcValue, true);
          }
          else if (isTyped) {
            isCommon = false;
            newValue = cloneTypedArray(srcValue, true);
          }
          else {
            newValue = [];
          }
        }
        else if (isPlainObject(srcValue) || isArguments(srcValue)) {
          newValue = objValue;
          if (isArguments(objValue)) {
            newValue = toPlainObject(objValue);
          }
          else if (!isObject(objValue) || (srcIndex && isFunction(objValue))) {
            newValue = initCloneObject(srcValue);
          }
        }
        else {
          isCommon = false;
        }
      }
      if (isCommon) {
        // Recursively merge objects and arrays (susceptible to call stack limits).
        stack.set(srcValue, newValue);
        mergeFunc(newValue, srcValue, srcIndex, customizer, stack);
        stack['delete'](srcValue);
      }
      assignMergeValue(object, key, newValue);
    }

    /**
     * The base implementation of `_.nth` which doesn't coerce arguments.
     *
     * @private
     * @param {Array} array The array to query.
     * @param {number} n The index of the element to return.
     * @returns {*} Returns the nth element of `array`.
     */
    function baseNth(array, n) {
      var length = array.length;
      if (!length) {
        return;
      }
      n += n < 0 ? length : 0;
      return isIndex(n, length) ? array[n] : undefined;
    }

    /**
     * The base implementation of `_.orderBy` without param guards.
     *
     * @private
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by.
     * @param {string[]} orders The sort orders of `iteratees`.
     * @returns {Array} Returns the new sorted array.
     */
    function baseOrderBy(collection, iteratees, orders) {
      var index = -1;
      iteratees = arrayMap(iteratees.length ? iteratees : [identity], baseUnary(getIteratee()));

      var result = baseMap(collection, function(value, key, collection) {
        var criteria = arrayMap(iteratees, function(iteratee) {
          return iteratee(value);
        });
        return { 'criteria': criteria, 'index': ++index, 'value': value };
      });

      return baseSortBy(result, function(object, other) {
        return compareMultiple(object, other, orders);
      });
    }

    /**
     * The base implementation of `_.pick` without support for individual
     * property identifiers.
     *
     * @private
     * @param {Object} object The source object.
     * @param {string[]} paths The property paths to pick.
     * @returns {Object} Returns the new object.
     */
    function basePick(object, paths) {
      return basePickBy(object, paths, function(value, path) {
        return hasIn(object, path);
      });
    }

    /**
     * The base implementation of  `_.pickBy` without support for iteratee shorthands.
     *
     * @private
     * @param {Object} object The source object.
     * @param {string[]} paths The property paths to pick.
     * @param {Function} predicate The function invoked per property.
     * @returns {Object} Returns the new object.
     */
    function basePickBy(object, paths, predicate) {
      var index = -1,
          length = paths.length,
          result = {};

      while (++index < length) {
        var path = paths[index],
            value = baseGet(object, path);

        if (predicate(value, path)) {
          baseSet(result, castPath(path, object), value);
        }
      }
      return result;
    }

    /**
     * A specialized version of `baseProperty` which supports deep paths.
     *
     * @private
     * @param {Array|string} path The path of the property to get.
     * @returns {Function} Returns the new accessor function.
     */
    function basePropertyDeep(path) {
      return function(object) {
        return baseGet(object, path);
      };
    }

    /**
     * The base implementation of `_.pullAllBy` without support for iteratee
     * shorthands.
     *
     * @private
     * @param {Array} array The array to modify.
     * @param {Array} values The values to remove.
     * @param {Function} [iteratee] The iteratee invoked per element.
     * @param {Function} [comparator] The comparator invoked per element.
     * @returns {Array} Returns `array`.
     */
    function basePullAll(array, values, iteratee, comparator) {
      var indexOf = comparator ? baseIndexOfWith : baseIndexOf,
          index = -1,
          length = values.length,
          seen = array;

      if (array === values) {
        values = copyArray(values);
      }
      if (iteratee) {
        seen = arrayMap(array, baseUnary(iteratee));
      }
      while (++index < length) {
        var fromIndex = 0,
            value = values[index],
            computed = iteratee ? iteratee(value) : value;

        while ((fromIndex = indexOf(seen, computed, fromIndex, comparator)) > -1) {
          if (seen !== array) {
            splice.call(seen, fromIndex, 1);
          }
          splice.call(array, fromIndex, 1);
        }
      }
      return array;
    }

    /**
     * The base implementation of `_.pullAt` without support for individual
     * indexes or capturing the removed elements.
     *
     * @private
     * @param {Array} array The array to modify.
     * @param {number[]} indexes The indexes of elements to remove.
     * @returns {Array} Returns `array`.
     */
    function basePullAt(array, indexes) {
      var length = array ? indexes.length : 0,
          lastIndex = length - 1;

      while (length--) {
        var index = indexes[length];
        if (length == lastIndex || index !== previous) {
          var previous = index;
          if (isIndex(index)) {
            splice.call(array, index, 1);
          } else {
            baseUnset(array, index);
          }
        }
      }
      return array;
    }

    /**
     * The base implementation of `_.random` without support for returning
     * floating-point numbers.
     *
     * @private
     * @param {number} lower The lower bound.
     * @param {number} upper The upper bound.
     * @returns {number} Returns the random number.
     */
    function baseRandom(lower, upper) {
      return lower + nativeFloor(nativeRandom() * (upper - lower + 1));
    }

    /**
     * The base implementation of `_.range` and `_.rangeRight` which doesn't
     * coerce arguments.
     *
     * @private
     * @param {number} start The start of the range.
     * @param {number} end The end of the range.
     * @param {number} step The value to increment or decrement by.
     * @param {boolean} [fromRight] Specify iterating from right to left.
     * @returns {Array} Returns the range of numbers.
     */
    function baseRange(start, end, step, fromRight) {
      var index = -1,
          length = nativeMax(nativeCeil((end - start) / (step || 1)), 0),
          result = Array(length);

      while (length--) {
        result[fromRight ? length : ++index] = start;
        start += step;
      }
      return result;
    }

    /**
     * The base implementation of `_.repeat` which doesn't coerce arguments.
     *
     * @private
     * @param {string} string The string to repeat.
     * @param {number} n The number of times to repeat the string.
     * @returns {string} Returns the repeated string.
     */
    function baseRepeat(string, n) {
      var result = '';
      if (!string || n < 1 || n > MAX_SAFE_INTEGER) {
        return result;
      }
      // Leverage the exponentiation by squaring algorithm for a faster repeat.
      // See https://en.wikipedia.org/wiki/Exponentiation_by_squaring for more details.
      do {
        if (n % 2) {
          result += string;
        }
        n = nativeFloor(n / 2);
        if (n) {
          string += string;
        }
      } while (n);

      return result;
    }

    /**
     * The base implementation of `_.rest` which doesn't validate or coerce arguments.
     *
     * @private
     * @param {Function} func The function to apply a rest parameter to.
     * @param {number} [start=func.length-1] The start position of the rest parameter.
     * @returns {Function} Returns the new function.
     */
    function baseRest(func, start) {
      return setToString(overRest(func, start, identity), func + '');
    }

    /**
     * The base implementation of `_.sample`.
     *
     * @private
     * @param {Array|Object} collection The collection to sample.
     * @returns {*} Returns the random element.
     */
    function baseSample(collection) {
      return arraySample(values(collection));
    }

    /**
     * The base implementation of `_.sampleSize` without param guards.
     *
     * @private
     * @param {Array|Object} collection The collection to sample.
     * @param {number} n The number of elements to sample.
     * @returns {Array} Returns the random elements.
     */
    function baseSampleSize(collection, n) {
      var array = values(collection);
      return shuffleSelf(array, baseClamp(n, 0, array.length));
    }

    /**
     * The base implementation of `_.set`.
     *
     * @private
     * @param {Object} object The object to modify.
     * @param {Array|string} path The path of the property to set.
     * @param {*} value The value to set.
     * @param {Function} [customizer] The function to customize path creation.
     * @returns {Object} Returns `object`.
     */
    function baseSet(object, path, value, customizer) {
      if (!isObject(object)) {
        return object;
      }
      path = castPath(path, object);

      var index = -1,
          length = path.length,
          lastIndex = length - 1,
          nested = object;

      while (nested != null && ++index < length) {
        var key = toKey(path[index]),
            newValue = value;

        if (index != lastIndex) {
          var objValue = nested[key];
          newValue = customizer ? customizer(objValue, key, nested) : undefined;
          if (newValue === undefined) {
            newValue = isObject(objValue)
              ? objValue
              : (isIndex(path[index + 1]) ? [] : {});
          }
        }
        assignValue(nested, key, newValue);
        nested = nested[key];
      }
      return object;
    }

    /**
     * The base implementation of `setData` without support for hot loop shorting.
     *
     * @private
     * @param {Function} func The function to associate metadata with.
     * @param {*} data The metadata.
     * @returns {Function} Returns `func`.
     */
    var baseSetData = !metaMap ? identity : function(func, data) {
      metaMap.set(func, data);
      return func;
    };

    /**
     * The base implementation of `setToString` without support for hot loop shorting.
     *
     * @private
     * @param {Function} func The function to modify.
     * @param {Function} string The `toString` result.
     * @returns {Function} Returns `func`.
     */
    var baseSetToString = !defineProperty ? identity : function(func, string) {
      return defineProperty(func, 'toString', {
        'configurable': true,
        'enumerable': false,
        'value': constant(string),
        'writable': true
      });
    };

    /**
     * The base implementation of `_.shuffle`.
     *
     * @private
     * @param {Array|Object} collection The collection to shuffle.
     * @returns {Array} Returns the new shuffled array.
     */
    function baseShuffle(collection) {
      return shuffleSelf(values(collection));
    }

    /**
     * The base implementation of `_.slice` without an iteratee call guard.
     *
     * @private
     * @param {Array} array The array to slice.
     * @param {number} [start=0] The start position.
     * @param {number} [end=array.length] The end position.
     * @returns {Array} Returns the slice of `array`.
     */
    function baseSlice(array, start, end) {
      var index = -1,
          length = array.length;

      if (start < 0) {
        start = -start > length ? 0 : (length + start);
      }
      end = end > length ? length : end;
      if (end < 0) {
        end += length;
      }
      length = start > end ? 0 : ((end - start) >>> 0);
      start >>>= 0;

      var result = Array(length);
      while (++index < length) {
        result[index] = array[index + start];
      }
      return result;
    }

    /**
     * The base implementation of `_.some` without support for iteratee shorthands.
     *
     * @private
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} predicate The function invoked per iteration.
     * @returns {boolean} Returns `true` if any element passes the predicate check,
     *  else `false`.
     */
    function baseSome(collection, predicate) {
      var result;

      baseEach(collection, function(value, index, collection) {
        result = predicate(value, index, collection);
        return !result;
      });
      return !!result;
    }

    /**
     * The base implementation of `_.sortedIndex` and `_.sortedLastIndex` which
     * performs a binary search of `array` to determine the index at which `value`
     * should be inserted into `array` in order to maintain its sort order.
     *
     * @private
     * @param {Array} array The sorted array to inspect.
     * @param {*} value The value to evaluate.
     * @param {boolean} [retHighest] Specify returning the highest qualified index.
     * @returns {number} Returns the index at which `value` should be inserted
     *  into `array`.
     */
    function baseSortedIndex(array, value, retHighest) {
      var low = 0,
          high = array == null ? low : array.length;

      if (typeof value == 'number' && value === value && high <= HALF_MAX_ARRAY_LENGTH) {
        while (low < high) {
          var mid = (low + high) >>> 1,
              computed = array[mid];

          if (computed !== null && !isSymbol(computed) &&
              (retHighest ? (computed <= value) : (computed < value))) {
            low = mid + 1;
          } else {
            high = mid;
          }
        }
        return high;
      }
      return baseSortedIndexBy(array, value, identity, retHighest);
    }

    /**
     * The base implementation of `_.sortedIndexBy` and `_.sortedLastIndexBy`
     * which invokes `iteratee` for `value` and each element of `array` to compute
     * their sort ranking. The iteratee is invoked with one argument; (value).
     *
     * @private
     * @param {Array} array The sorted array to inspect.
     * @param {*} value The value to evaluate.
     * @param {Function} iteratee The iteratee invoked per element.
     * @param {boolean} [retHighest] Specify returning the highest qualified index.
     * @returns {number} Returns the index at which `value` should be inserted
     *  into `array`.
     */
    function baseSortedIndexBy(array, value, iteratee, retHighest) {
      value = iteratee(value);

      var low = 0,
          high = array == null ? 0 : array.length,
          valIsNaN = value !== value,
          valIsNull = value === null,
          valIsSymbol = isSymbol(value),
          valIsUndefined = value === undefined;

      while (low < high) {
        var mid = nativeFloor((low + high) / 2),
            computed = iteratee(array[mid]),
            othIsDefined = computed !== undefined,
            othIsNull = computed === null,
            othIsReflexive = computed === computed,
            othIsSymbol = isSymbol(computed);

        if (valIsNaN) {
          var setLow = retHighest || othIsReflexive;
        } else if (valIsUndefined) {
          setLow = othIsReflexive && (retHighest || othIsDefined);
        } else if (valIsNull) {
          setLow = othIsReflexive && othIsDefined && (retHighest || !othIsNull);
        } else if (valIsSymbol) {
          setLow = othIsReflexive && othIsDefined && !othIsNull && (retHighest || !othIsSymbol);
        } else if (othIsNull || othIsSymbol) {
          setLow = false;
        } else {
          setLow = retHighest ? (computed <= value) : (computed < value);
        }
        if (setLow) {
          low = mid + 1;
        } else {
          high = mid;
        }
      }
      return nativeMin(high, MAX_ARRAY_INDEX);
    }

    /**
     * The base implementation of `_.sortedUniq` and `_.sortedUniqBy` without
     * support for iteratee shorthands.
     *
     * @private
     * @param {Array} array The array to inspect.
     * @param {Function} [iteratee] The iteratee invoked per element.
     * @returns {Array} Returns the new duplicate free array.
     */
    function baseSortedUniq(array, iteratee) {
      var index = -1,
          length = array.length,
          resIndex = 0,
          result = [];

      while (++index < length) {
        var value = array[index],
            computed = iteratee ? iteratee(value) : value;

        if (!index || !eq(computed, seen)) {
          var seen = computed;
          result[resIndex++] = value === 0 ? 0 : value;
        }
      }
      return result;
    }

    /**
     * The base implementation of `_.toNumber` which doesn't ensure correct
     * conversions of binary, hexadecimal, or octal string values.
     *
     * @private
     * @param {*} value The value to process.
     * @returns {number} Returns the number.
     */
    function baseToNumber(value) {
      if (typeof value == 'number') {
        return value;
      }
      if (isSymbol(value)) {
        return NAN;
      }
      return +value;
    }

    /**
     * The base implementation of `_.toString` which doesn't convert nullish
     * values to empty strings.
     *
     * @private
     * @param {*} value The value to process.
     * @returns {string} Returns the string.
     */
    function baseToString(value) {
      // Exit early for strings to avoid a performance hit in some environments.
      if (typeof value == 'string') {
        return value;
      }
      if (isArray(value)) {
        // Recursively convert values (susceptible to call stack limits).
        return arrayMap(value, baseToString) + '';
      }
      if (isSymbol(value)) {
        return symbolToString ? symbolToString.call(value) : '';
      }
      var result = (value + '');
      return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result;
    }

    /**
     * The base implementation of `_.uniqBy` without support for iteratee shorthands.
     *
     * @private
     * @param {Array} array The array to inspect.
     * @param {Function} [iteratee] The iteratee invoked per element.
     * @param {Function} [comparator] The comparator invoked per element.
     * @returns {Array} Returns the new duplicate free array.
     */
    function baseUniq(array, iteratee, comparator) {
      var index = -1,
          includes = arrayIncludes,
          length = array.length,
          isCommon = true,
          result = [],
          seen = result;

      if (comparator) {
        isCommon = false;
        includes = arrayIncludesWith;
      }
      else if (length >= LARGE_ARRAY_SIZE) {
        var set = iteratee ? null : createSet(array);
        if (set) {
          return setToArray(set);
        }
        isCommon = false;
        includes = cacheHas;
        seen = new SetCache;
      }
      else {
        seen = iteratee ? [] : result;
      }
      outer:
      while (++index < length) {
        var value = array[index],
            computed = iteratee ? iteratee(value) : value;

        value = (comparator || value !== 0) ? value : 0;
        if (isCommon && computed === computed) {
          var seenIndex = seen.length;
          while (seenIndex--) {
            if (seen[seenIndex] === computed) {
              continue outer;
            }
          }
          if (iteratee) {
            seen.push(computed);
          }
          result.push(value);
        }
        else if (!includes(seen, computed, comparator)) {
          if (seen !== result) {
            seen.push(computed);
          }
          result.push(value);
        }
      }
      return result;
    }

    /**
     * The base implementation of `_.unset`.
     *
     * @private
     * @param {Object} object The object to modify.
     * @param {Array|string} path The property path to unset.
     * @returns {boolean} Returns `true` if the property is deleted, else `false`.
     */
    function baseUnset(object, path) {
      path = castPath(path, object);
      object = parent(object, path);
      return object == null || delete object[toKey(last(path))];
    }

    /**
     * The base implementation of `_.update`.
     *
     * @private
     * @param {Object} object The object to modify.
     * @param {Array|string} path The path of the property to update.
     * @param {Function} updater The function to produce the updated value.
     * @param {Function} [customizer] The function to customize path creation.
     * @returns {Object} Returns `object`.
     */
    function baseUpdate(object, path, updater, customizer) {
      return baseSet(object, path, updater(baseGet(object, path)), customizer);
    }

    /**
     * The base implementation of methods like `_.dropWhile` and `_.takeWhile`
     * without support for iteratee shorthands.
     *
     * @private
     * @param {Array} array The array to query.
     * @param {Function} predicate The function invoked per iteration.
     * @param {boolean} [isDrop] Specify dropping elements instead of taking them.
     * @param {boolean} [fromRight] Specify iterating from right to left.
     * @returns {Array} Returns the slice of `array`.
     */
    function baseWhile(array, predicate, isDrop, fromRight) {
      var length = array.length,
          index = fromRight ? length : -1;

      while ((fromRight ? index-- : ++index < length) &&
        predicate(array[index], index, array)) {}

      return isDrop
        ? baseSlice(array, (fromRight ? 0 : index), (fromRight ? index + 1 : length))
        : baseSlice(array, (fromRight ? index + 1 : 0), (fromRight ? length : index));
    }

    /**
     * The base implementation of `wrapperValue` which returns the result of
     * performing a sequence of actions on the unwrapped `value`, where each
     * successive action is supplied the return value of the previous.
     *
     * @private
     * @param {*} value The unwrapped value.
     * @param {Array} actions Actions to perform to resolve the unwrapped value.
     * @returns {*} Returns the resolved value.
     */
    function baseWrapperValue(value, actions) {
      var result = value;
      if (result instanceof LazyWrapper) {
        result = result.value();
      }
      return arrayReduce(actions, function(result, action) {
        return action.func.apply(action.thisArg, arrayPush([result], action.args));
      }, result);
    }

    /**
     * The base implementation of methods like `_.xor`, without support for
     * iteratee shorthands, that accepts an array of arrays to inspect.
     *
     * @private
     * @param {Array} arrays The arrays to inspect.
     * @param {Function} [iteratee] The iteratee invoked per element.
     * @param {Function} [comparator] The comparator invoked per element.
     * @returns {Array} Returns the new array of values.
     */
    function baseXor(arrays, iteratee, comparator) {
      var length = arrays.length;
      if (length < 2) {
        return length ? baseUniq(arrays[0]) : [];
      }
      var index = -1,
          result = Array(length);

      while (++index < length) {
        var array = arrays[index],
            othIndex = -1;

        while (++othIndex < length) {
          if (othIndex != index) {
            result[index] = baseDifference(result[index] || array, arrays[othIndex], iteratee, comparator);
          }
        }
      }
      return baseUniq(baseFlatten(result, 1), iteratee, comparator);
    }

    /**
     * This base implementation of `_.zipObject` which assigns values using `assignFunc`.
     *
     * @private
     * @param {Array} props The property identifiers.
     * @param {Array} values The property values.
     * @param {Function} assignFunc The function to assign values.
     * @returns {Object} Returns the new object.
     */
    function baseZipObject(props, values, assignFunc) {
      var index = -1,
          length = props.length,
          valsLength = values.length,
          result = {};

      while (++index < length) {
        var value = index < valsLength ? values[index] : undefined;
        assignFunc(result, props[index], value);
      }
      return result;
    }

    /**
     * Casts `value` to an empty array if it's not an array like object.
     *
     * @private
     * @param {*} value The value to inspect.
     * @returns {Array|Object} Returns the cast array-like object.
     */
    function castArrayLikeObject(value) {
      return isArrayLikeObject(value) ? value : [];
    }

    /**
     * Casts `value` to `identity` if it's not a function.
     *
     * @private
     * @param {*} value The value to inspect.
     * @returns {Function} Returns cast function.
     */
    function castFunction(value) {
      return typeof value == 'function' ? value : identity;
    }

    /**
     * Casts `value` to a path array if it's not one.
     *
     * @private
     * @param {*} value The value to inspect.
     * @param {Object} [object] The object to query keys on.
     * @returns {Array} Returns the cast property path array.
     */
    function castPath(value, object) {
      if (isArray(value)) {
        return value;
      }
      return isKey(value, object) ? [value] : stringToPath(toString(value));
    }

    /**
     * A `baseRest` alias which can be replaced with `identity` by module
     * replacement plugins.
     *
     * @private
     * @type {Function}
     * @param {Function} func The function to apply a rest parameter to.
     * @returns {Function} Returns the new function.
     */
    var castRest = baseRest;

    /**
     * Casts `array` to a slice if it's needed.
     *
     * @private
     * @param {Array} array The array to inspect.
     * @param {number} start The start position.
     * @param {number} [end=array.length] The end position.
     * @returns {Array} Returns the cast slice.
     */
    function castSlice(array, start, end) {
      var length = array.length;
      end = end === undefined ? length : end;
      return (!start && end >= length) ? array : baseSlice(array, start, end);
    }

    /**
     * A simple wrapper around the global [`clearTimeout`](https://mdn.io/clearTimeout).
     *
     * @private
     * @param {number|Object} id The timer id or timeout object of the timer to clear.
     */
    var clearTimeout = ctxClearTimeout || function(id) {
      return root.clearTimeout(id);
    };

    /**
     * Creates a clone of  `buffer`.
     *
     * @private
     * @param {Buffer} buffer The buffer to clone.
     * @param {boolean} [isDeep] Specify a deep clone.
     * @returns {Buffer} Returns the cloned buffer.
     */
    function cloneBuffer(buffer, isDeep) {
      if (isDeep) {
        return buffer.slice();
      }
      var length = buffer.length,
          result = allocUnsafe ? allocUnsafe(length) : new buffer.constructor(length);

      buffer.copy(result);
      return result;
    }

    /**
     * Creates a clone of `arrayBuffer`.
     *
     * @private
     * @param {ArrayBuffer} arrayBuffer The array buffer to clone.
     * @returns {ArrayBuffer} Returns the cloned array buffer.
     */
    function cloneArrayBuffer(arrayBuffer) {
      var result = new arrayBuffer.constructor(arrayBuffer.byteLength);
      new Uint8Array(result).set(new Uint8Array(arrayBuffer));
      return result;
    }

    /**
     * Creates a clone of `dataView`.
     *
     * @private
     * @param {Object} dataView The data view to clone.
     * @param {boolean} [isDeep] Specify a deep clone.
     * @returns {Object} Returns the cloned data view.
     */
    function cloneDataView(dataView, isDeep) {
      var buffer = isDeep ? cloneArrayBuffer(dataView.buffer) : dataView.buffer;
      return new dataView.constructor(buffer, dataView.byteOffset, dataView.byteLength);
    }

    /**
     * Creates a clone of `map`.
     *
     * @private
     * @param {Object} map The map to clone.
     * @param {Function} cloneFunc The function to clone values.
     * @param {boolean} [isDeep] Specify a deep clone.
     * @returns {Object} Returns the cloned map.
     */
    function cloneMap(map, isDeep, cloneFunc) {
      var array = isDeep ? cloneFunc(mapToArray(map), CLONE_DEEP_FLAG) : mapToArray(map);
      return arrayReduce(array, addMapEntry, new map.constructor);
    }

    /**
     * Creates a clone of `regexp`.
     *
     * @private
     * @param {Object} regexp The regexp to clone.
     * @returns {Object} Returns the cloned regexp.
     */
    function cloneRegExp(regexp) {
      var result = new regexp.constructor(regexp.source, reFlags.exec(regexp));
      result.lastIndex = regexp.lastIndex;
      return result;
    }

    /**
     * Creates a clone of `set`.
     *
     * @private
     * @param {Object} set The set to clone.
     * @param {Function} cloneFunc The function to clone values.
     * @param {boolean} [isDeep] Specify a deep clone.
     * @returns {Object} Returns the cloned set.
     */
    function cloneSet(set, isDeep, cloneFunc) {
      var array = isDeep ? cloneFunc(setToArray(set), CLONE_DEEP_FLAG) : setToArray(set);
      return arrayReduce(array, addSetEntry, new set.constructor);
    }

    /**
     * Creates a clone of the `symbol` object.
     *
     * @private
     * @param {Object} symbol The symbol object to clone.
     * @returns {Object} Returns the cloned symbol object.
     */
    function cloneSymbol(symbol) {
      return symbolValueOf ? Object(symbolValueOf.call(symbol)) : {};
    }

    /**
     * Creates a clone of `typedArray`.
     *
     * @private
     * @param {Object} typedArray The typed array to clone.
     * @param {boolean} [isDeep] Specify a deep clone.
     * @returns {Object} Returns the cloned typed array.
     */
    function cloneTypedArray(typedArray, isDeep) {
      var buffer = isDeep ? cloneArrayBuffer(typedArray.buffer) : typedArray.buffer;
      return new typedArray.constructor(buffer, typedArray.byteOffset, typedArray.length);
    }

    /**
     * Compares values to sort them in ascending order.
     *
     * @private
     * @param {*} value The value to compare.
     * @param {*} other The other value to compare.
     * @returns {number} Returns the sort order indicator for `value`.
     */
    function compareAscending(value, other) {
      if (value !== other) {
        var valIsDefined = value !== undefined,
            valIsNull = value === null,
            valIsReflexive = value === value,
            valIsSymbol = isSymbol(value);

        var othIsDefined = other !== undefined,
            othIsNull = other === null,
            othIsReflexive = other === other,
            othIsSymbol = isSymbol(other);

        if ((!othIsNull && !othIsSymbol && !valIsSymbol && value > other) ||
            (valIsSymbol && othIsDefined && othIsReflexive && !othIsNull && !othIsSymbol) ||
            (valIsNull && othIsDefined && othIsReflexive) ||
            (!valIsDefined && othIsReflexive) ||
            !valIsReflexive) {
          return 1;
        }
        if ((!valIsNull && !valIsSymbol && !othIsSymbol && value < other) ||
            (othIsSymbol && valIsDefined && valIsReflexive && !valIsNull && !valIsSymbol) ||
            (othIsNull && valIsDefined && valIsReflexive) ||
            (!othIsDefined && valIsReflexive) ||
            !othIsReflexive) {
          return -1;
        }
      }
      return 0;
    }

    /**
     * Used by `_.orderBy` to compare multiple properties of a value to another
     * and stable sort them.
     *
     * If `orders` is unspecified, all values are sorted in ascending order. Otherwise,
     * specify an order of "desc" for descending or "asc" for ascending sort order
     * of corresponding values.
     *
     * @private
     * @param {Object} object The object to compare.
     * @param {Object} other The other object to compare.
     * @param {boolean[]|string[]} orders The order to sort by for each property.
     * @returns {number} Returns the sort order indicator for `object`.
     */
    function compareMultiple(object, other, orders) {
      var index = -1,
          objCriteria = object.criteria,
          othCriteria = other.criteria,
          length = objCriteria.length,
          ordersLength = orders.length;

      while (++index < length) {
        var result = compareAscending(objCriteria[index], othCriteria[index]);
        if (result) {
          if (index >= ordersLength) {
            return result;
          }
          var order = orders[index];
          return result * (order == 'desc' ? -1 : 1);
        }
      }
      // Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications
      // that causes it, under certain circumstances, to provide the same value for
      // `object` and `other`. See https://github.com/jashkenas/underscore/pull/1247
      // for more details.
      //
      // This also ensures a stable sort in V8 and other engines.
      // See https://bugs.chromium.org/p/v8/issues/detail?id=90 for more details.
      return object.index - other.index;
    }

    /**
     * Creates an array that is the composition of partially applied arguments,
     * placeholders, and provided arguments into a single array of arguments.
     *
     * @private
     * @param {Array} args The provided arguments.
     * @param {Array} partials The arguments to prepend to those provided.
     * @param {Array} holders The `partials` placeholder indexes.
     * @params {boolean} [isCurried] Specify composing for a curried function.
     * @returns {Array} Returns the new array of composed arguments.
     */
    function composeArgs(args, partials, holders, isCurried) {
      var argsIndex = -1,
          argsLength = args.length,
          holdersLength = holders.length,
          leftIndex = -1,
          leftLength = partials.length,
          rangeLength = nativeMax(argsLength - holdersLength, 0),
          result = Array(leftLength + rangeLength),
          isUncurried = !isCurried;

      while (++leftIndex < leftLength) {
        result[leftIndex] = partials[leftIndex];
      }
      while (++argsIndex < holdersLength) {
        if (isUncurried || argsIndex < argsLength) {
          result[holders[argsIndex]] = args[argsIndex];
        }
      }
      while (rangeLength--) {
        result[leftIndex++] = args[argsIndex++];
      }
      return result;
    }

    /**
     * This function is like `composeArgs` except that the arguments composition
     * is tailored for `_.partialRight`.
     *
     * @private
     * @param {Array} args The provided arguments.
     * @param {Array} partials The arguments to append to those provided.
     * @param {Array} holders The `partials` placeholder indexes.
     * @params {boolean} [isCurried] Specify composing for a curried function.
     * @returns {Array} Returns the new array of composed arguments.
     */
    function composeArgsRight(args, partials, holders, isCurried) {
      var argsIndex = -1,
          argsLength = args.length,
          holdersIndex = -1,
          holdersLength = holders.length,
          rightIndex = -1,
          rightLength = partials.length,
          rangeLength = nativeMax(argsLength - holdersLength, 0),
          result = Array(rangeLength + rightLength),
          isUncurried = !isCurried;

      while (++argsIndex < rangeLength) {
        result[argsIndex] = args[argsIndex];
      }
      var offset = argsIndex;
      while (++rightIndex < rightLength) {
        result[offset + rightIndex] = partials[rightIndex];
      }
      while (++holdersIndex < holdersLength) {
        if (isUncurried || argsIndex < argsLength) {
          result[offset + holders[holdersIndex]] = args[argsIndex++];
        }
      }
      return result;
    }

    /**
     * Copies the values of `source` to `array`.
     *
     * @private
     * @param {Array} source The array to copy values from.
     * @param {Array} [array=[]] The array to copy values to.
     * @returns {Array} Returns `array`.
     */
    function copyArray(source, array) {
      var index = -1,
          length = source.length;

      array || (array = Array(length));
      while (++index < length) {
        array[index] = source[index];
      }
      return array;
    }

    /**
     * Copies properties of `source` to `object`.
     *
     * @private
     * @param {Object} source The object to copy properties from.
     * @param {Array} props The property identifiers to copy.
     * @param {Object} [object={}] The object to copy properties to.
     * @param {Function} [customizer] The function to customize copied values.
     * @returns {Object} Returns `object`.
     */
    function copyObject(source, props, object, customizer) {
      var isNew = !object;
      object || (object = {});

      var index = -1,
          length = props.length;

      while (++index < length) {
        var key = props[index];

        var newValue = customizer
          ? customizer(object[key], source[key], key, object, source)
          : undefined;

        if (newValue === undefined) {
          newValue = source[key];
        }
        if (isNew) {
          baseAssignValue(object, key, newValue);
        } else {
          assignValue(object, key, newValue);
        }
      }
      return object;
    }

    /**
     * Copies own symbols of `source` to `object`.
     *
     * @private
     * @param {Object} source The object to copy symbols from.
     * @param {Object} [object={}] The object to copy symbols to.
     * @returns {Object} Returns `object`.
     */
    function copySymbols(source, object) {
      return copyObject(source, getSymbols(source), object);
    }

    /**
     * Copies own and inherited symbols of `source` to `object`.
     *
     * @private
     * @param {Object} source The object to copy symbols from.
     * @param {Object} [object={}] The object to copy symbols to.
     * @returns {Object} Returns `object`.
     */
    function copySymbolsIn(source, object) {
      return copyObject(source, getSymbolsIn(source), object);
    }

    /**
     * Creates a function like `_.groupBy`.
     *
     * @private
     * @param {Function} setter The function to set accumulator values.
     * @param {Function} [initializer] The accumulator object initializer.
     * @returns {Function} Returns the new aggregator function.
     */
    function createAggregator(setter, initializer) {
      return function(collection, iteratee) {
        var func = isArray(collection) ? arrayAggregator : baseAggregator,
            accumulator = initializer ? initializer() : {};

        return func(collection, setter, getIteratee(iteratee, 2), accumulator);
      };
    }

    /**
     * Creates a function like `_.assign`.
     *
     * @private
     * @param {Function} assigner The function to assign values.
     * @returns {Function} Returns the new assigner function.
     */
    function createAssigner(assigner) {
      return baseRest(function(object, sources) {
        var index = -1,
            length = sources.length,
            customizer = length > 1 ? sources[length - 1] : undefined,
            guard = length > 2 ? sources[2] : undefined;

        customizer = (assigner.length > 3 && typeof customizer == 'function')
          ? (length--, customizer)
          : undefined;

        if (guard && isIterateeCall(sources[0], sources[1], guard)) {
          customizer = length < 3 ? undefined : customizer;
          length = 1;
        }
        object = Object(object);
        while (++index < length) {
          var source = sources[index];
          if (source) {
            assigner(object, source, index, customizer);
          }
        }
        return object;
      });
    }

    /**
     * Creates a `baseEach` or `baseEachRight` function.
     *
     * @private
     * @param {Function} eachFunc The function to iterate over a collection.
     * @param {boolean} [fromRight] Specify iterating from right to left.
     * @returns {Function} Returns the new base function.
     */
    function createBaseEach(eachFunc, fromRight) {
      return function(collection, iteratee) {
        if (collection == null) {
          return collection;
        }
        if (!isArrayLike(collection)) {
          return eachFunc(collection, iteratee);
        }
        var length = collection.length,
            index = fromRight ? length : -1,
            iterable = Object(collection);

        while ((fromRight ? index-- : ++index < length)) {
          if (iteratee(iterable[index], index, iterable) === false) {
            break;
          }
        }
        return collection;
      };
    }

    /**
     * Creates a base function for methods like `_.forIn` and `_.forOwn`.
     *
     * @private
     * @param {boolean} [fromRight] Specify iterating from right to left.
     * @returns {Function} Returns the new base function.
     */
    function createBaseFor(fromRight) {
      return function(object, iteratee, keysFunc) {
        var index = -1,
            iterable = Object(object),
            props = keysFunc(object),
            length = props.length;

        while (length--) {
          var key = props[fromRight ? length : ++index];
          if (iteratee(iterable[key], key, iterable) === false) {
            break;
          }
        }
        return object;
      };
    }

    /**
     * Creates a function that wraps `func` to invoke it with the optional `this`
     * binding of `thisArg`.
     *
     * @private
     * @param {Function} func The function to wrap.
     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
     * @param {*} [thisArg] The `this` binding of `func`.
     * @returns {Function} Returns the new wrapped function.
     */
    function createBind(func, bitmask, thisArg) {
      var isBind = bitmask & WRAP_BIND_FLAG,
          Ctor = createCtor(func);

      function wrapper() {
        var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;
        return fn.apply(isBind ? thisArg : this, arguments);
      }
      return wrapper;
    }

    /**
     * Creates a function like `_.lowerFirst`.
     *
     * @private
     * @param {string} methodName The name of the `String` case method to use.
     * @returns {Function} Returns the new case function.
     */
    function createCaseFirst(methodName) {
      return function(string) {
        string = toString(string);

        var strSymbols = hasUnicode(string)
          ? stringToArray(string)
          : undefined;

        var chr = strSymbols
          ? strSymbols[0]
          : string.charAt(0);

        var trailing = strSymbols
          ? castSlice(strSymbols, 1).join('')
          : string.slice(1);

        return chr[methodName]() + trailing;
      };
    }

    /**
     * Creates a function like `_.camelCase`.
     *
     * @private
     * @param {Function} callback The function to combine each word.
     * @returns {Function} Returns the new compounder function.
     */
    function createCompounder(callback) {
      return function(string) {
        return arrayReduce(words(deburr(string).replace(reApos, '')), callback, '');
      };
    }

    /**
     * Creates a function that produces an instance of `Ctor` regardless of
     * whether it was invoked as part of a `new` expression or by `call` or `apply`.
     *
     * @private
     * @param {Function} Ctor The constructor to wrap.
     * @returns {Function} Returns the new wrapped function.
     */
    function createCtor(Ctor) {
      return function() {
        // Use a `switch` statement to work with class constructors. See
        // http://ecma-international.org/ecma-262/7.0/#sec-ecmascript-function-objects-call-thisargument-argumentslist
        // for more details.
        var args = arguments;
        switch (args.length) {
          case 0: return new Ctor;
          case 1: return new Ctor(args[0]);
          case 2: return new Ctor(args[0], args[1]);
          case 3: return new Ctor(args[0], args[1], args[2]);
          case 4: return new Ctor(args[0], args[1], args[2], args[3]);
          case 5: return new Ctor(args[0], args[1], args[2], args[3], args[4]);
          case 6: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5]);
          case 7: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5], args[6]);
        }
        var thisBinding = baseCreate(Ctor.prototype),
            result = Ctor.apply(thisBinding, args);

        // Mimic the constructor's `return` behavior.
        // See https://es5.github.io/#x13.2.2 for more details.
        return isObject(result) ? result : thisBinding;
      };
    }

    /**
     * Creates a function that wraps `func` to enable currying.
     *
     * @private
     * @param {Function} func The function to wrap.
     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
     * @param {number} arity The arity of `func`.
     * @returns {Function} Returns the new wrapped function.
     */
    function createCurry(func, bitmask, arity) {
      var Ctor = createCtor(func);

      function wrapper() {
        var length = arguments.length,
            args = Array(length),
            index = length,
            placeholder = getHolder(wrapper);

        while (index--) {
          args[index] = arguments[index];
        }
        var holders = (length < 3 && args[0] !== placeholder && args[length - 1] !== placeholder)
          ? []
          : replaceHolders(args, placeholder);

        length -= holders.length;
        if (length < arity) {
          return createRecurry(
            func, bitmask, createHybrid, wrapper.placeholder, undefined,
            args, holders, undefined, undefined, arity - length);
        }
        var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;
        return apply(fn, this, args);
      }
      return wrapper;
    }

    /**
     * Creates a `_.find` or `_.findLast` function.
     *
     * @private
     * @param {Function} findIndexFunc The function to find the collection index.
     * @returns {Function} Returns the new find function.
     */
    function createFind(findIndexFunc) {
      return function(collection, predicate, fromIndex) {
        var iterable = Object(collection);
        if (!isArrayLike(collection)) {
          var iteratee = getIteratee(predicate, 3);
          collection = keys(collection);
          predicate = function(key) { return iteratee(iterable[key], key, iterable); };
        }
        var index = findIndexFunc(collection, predicate, fromIndex);
        return index > -1 ? iterable[iteratee ? collection[index] : index] : undefined;
      };
    }

    /**
     * Creates a `_.flow` or `_.flowRight` function.
     *
     * @private
     * @param {boolean} [fromRight] Specify iterating from right to left.
     * @returns {Function} Returns the new flow function.
     */
    function createFlow(fromRight) {
      return flatRest(function(funcs) {
        var length = funcs.length,
            index = length,
            prereq = LodashWrapper.prototype.thru;

        if (fromRight) {
          funcs.reverse();
        }
        while (index--) {
          var func = funcs[index];
          if (typeof func != 'function') {
            throw new TypeError(FUNC_ERROR_TEXT);
          }
          if (prereq && !wrapper && getFuncName(func) == 'wrapper') {
            var wrapper = new LodashWrapper([], true);
          }
        }
        index = wrapper ? index : length;
        while (++index < length) {
          func = funcs[index];

          var funcName = getFuncName(func),
              data = funcName == 'wrapper' ? getData(func) : undefined;

          if (data && isLaziable(data[0]) &&
                data[1] == (WRAP_ARY_FLAG | WRAP_CURRY_FLAG | WRAP_PARTIAL_FLAG | WRAP_REARG_FLAG) &&
                !data[4].length && data[9] == 1
              ) {
            wrapper = wrapper[getFuncName(data[0])].apply(wrapper, data[3]);
          } else {
            wrapper = (func.length == 1 && isLaziable(func))
              ? wrapper[funcName]()
              : wrapper.thru(func);
          }
        }
        return function() {
          var args = arguments,
              value = args[0];

          if (wrapper && args.length == 1 && isArray(value)) {
            return wrapper.plant(value).value();
          }
          var index = 0,
              result = length ? funcs[index].apply(this, args) : value;

          while (++index < length) {
            result = funcs[index].call(this, result);
          }
          return result;
        };
      });
    }

    /**
     * Creates a function that wraps `func` to invoke it with optional `this`
     * binding of `thisArg`, partial application, and currying.
     *
     * @private
     * @param {Function|string} func The function or method name to wrap.
     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
     * @param {*} [thisArg] The `this` binding of `func`.
     * @param {Array} [partials] The arguments to prepend to those provided to
     *  the new function.
     * @param {Array} [holders] The `partials` placeholder indexes.
     * @param {Array} [partialsRight] The arguments to append to those provided
     *  to the new function.
     * @param {Array} [holdersRight] The `partialsRight` placeholder indexes.
     * @param {Array} [argPos] The argument positions of the new function.
     * @param {number} [ary] The arity cap of `func`.
     * @param {number} [arity] The arity of `func`.
     * @returns {Function} Returns the new wrapped function.
     */
    function createHybrid(func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity) {
      var isAry = bitmask & WRAP_ARY_FLAG,
          isBind = bitmask & WRAP_BIND_FLAG,
          isBindKey = bitmask & WRAP_BIND_KEY_FLAG,
          isCurried = bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG),
          isFlip = bitmask & WRAP_FLIP_FLAG,
          Ctor = isBindKey ? undefined : createCtor(func);

      function wrapper() {
        var length = arguments.length,
            args = Array(length),
            index = length;

        while (index--) {
          args[index] = arguments[index];
        }
        if (isCurried) {
          var placeholder = getHolder(wrapper),
              holdersCount = countHolders(args, placeholder);
        }
        if (partials) {
          args = composeArgs(args, partials, holders, isCurried);
        }
        if (partialsRight) {
          args = composeArgsRight(args, partialsRight, holdersRight, isCurried);
        }
        length -= holdersCount;
        if (isCurried && length < arity) {
          var newHolders = replaceHolders(args, placeholder);
          return createRecurry(
            func, bitmask, createHybrid, wrapper.placeholder, thisArg,
            args, newHolders, argPos, ary, arity - length
          );
        }
        var thisBinding = isBind ? thisArg : this,
            fn = isBindKey ? thisBinding[func] : func;

        length = args.length;
        if (argPos) {
          args = reorder(args, argPos);
        } else if (isFlip && length > 1) {
          args.reverse();
        }
        if (isAry && ary < length) {
          args.length = ary;
        }
        if (this && this !== root && this instanceof wrapper) {
          fn = Ctor || createCtor(fn);
        }
        return fn.apply(thisBinding, args);
      }
      return wrapper;
    }

    /**
     * Creates a function like `_.invertBy`.
     *
     * @private
     * @param {Function} setter The function to set accumulator values.
     * @param {Function} toIteratee The function to resolve iteratees.
     * @returns {Function} Returns the new inverter function.
     */
    function createInverter(setter, toIteratee) {
      return function(object, iteratee) {
        return baseInverter(object, setter, toIteratee(iteratee), {});
      };
    }

    /**
     * Creates a function that performs a mathematical operation on two values.
     *
     * @private
     * @param {Function} operator The function to perform the operation.
     * @param {number} [defaultValue] The value used for `undefined` arguments.
     * @returns {Function} Returns the new mathematical operation function.
     */
    function createMathOperation(operator, defaultValue) {
      return function(value, other) {
        var result;
        if (value === undefined && other === undefined) {
          return defaultValue;
        }
        if (value !== undefined) {
          result = value;
        }
        if (other !== undefined) {
          if (result === undefined) {
            return other;
          }
          if (typeof value == 'string' || typeof other == 'string') {
            value = baseToString(value);
            other = baseToString(other);
          } else {
            value = baseToNumber(value);
            other = baseToNumber(other);
          }
          result = operator(value, other);
        }
        return result;
      };
    }

    /**
     * Creates a function like `_.over`.
     *
     * @private
     * @param {Function} arrayFunc The function to iterate over iteratees.
     * @returns {Function} Returns the new over function.
     */
    function createOver(arrayFunc) {
      return flatRest(function(iteratees) {
        iteratees = arrayMap(iteratees, baseUnary(getIteratee()));
        return baseRest(function(args) {
          var thisArg = this;
          return arrayFunc(iteratees, function(iteratee) {
            return apply(iteratee, thisArg, args);
          });
        });
      });
    }

    /**
     * Creates the padding for `string` based on `length`. The `chars` string
     * is truncated if the number of characters exceeds `length`.
     *
     * @private
     * @param {number} length The padding length.
     * @param {string} [chars=' '] The string used as padding.
     * @returns {string} Returns the padding for `string`.
     */
    function createPadding(length, chars) {
      chars = chars === undefined ? ' ' : baseToString(chars);

      var charsLength = chars.length;
      if (charsLength < 2) {
        return charsLength ? baseRepeat(chars, length) : chars;
      }
      var result = baseRepeat(chars, nativeCeil(length / stringSize(chars)));
      return hasUnicode(chars)
        ? castSlice(stringToArray(result), 0, length).join('')
        : result.slice(0, length);
    }

    /**
     * Creates a function that wraps `func` to invoke it with the `this` binding
     * of `thisArg` and `partials` prepended to the arguments it receives.
     *
     * @private
     * @param {Function} func The function to wrap.
     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
     * @param {*} thisArg The `this` binding of `func`.
     * @param {Array} partials The arguments to prepend to those provided to
     *  the new function.
     * @returns {Function} Returns the new wrapped function.
     */
    function createPartial(func, bitmask, thisArg, partials) {
      var isBind = bitmask & WRAP_BIND_FLAG,
          Ctor = createCtor(func);

      function wrapper() {
        var argsIndex = -1,
            argsLength = arguments.length,
            leftIndex = -1,
            leftLength = partials.length,
            args = Array(leftLength + argsLength),
            fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;

        while (++leftIndex < leftLength) {
          args[leftIndex] = partials[leftIndex];
        }
        while (argsLength--) {
          args[leftIndex++] = arguments[++argsIndex];
        }
        return apply(fn, isBind ? thisArg : this, args);
      }
      return wrapper;
    }

    /**
     * Creates a `_.range` or `_.rangeRight` function.
     *
     * @private
     * @param {boolean} [fromRight] Specify iterating from right to left.
     * @returns {Function} Returns the new range function.
     */
    function createRange(fromRight) {
      return function(start, end, step) {
        if (step && typeof step != 'number' && isIterateeCall(start, end, step)) {
          end = step = undefined;
        }
        // Ensure the sign of `-0` is preserved.
        start = toFinite(start);
        if (end === undefined) {
          end = start;
          start = 0;
        } else {
          end = toFinite(end);
        }
        step = step === undefined ? (start < end ? 1 : -1) : toFinite(step);
        return baseRange(start, end, step, fromRight);
      };
    }

    /**
     * Creates a function that performs a relational operation on two values.
     *
     * @private
     * @param {Function} operator The function to perform the operation.
     * @returns {Function} Returns the new relational operation function.
     */
    function createRelationalOperation(operator) {
      return function(value, other) {
        if (!(typeof value == 'string' && typeof other == 'string')) {
          value = toNumber(value);
          other = toNumber(other);
        }
        return operator(value, other);
      };
    }

    /**
     * Creates a function that wraps `func` to continue currying.
     *
     * @private
     * @param {Function} func The function to wrap.
     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
     * @param {Function} wrapFunc The function to create the `func` wrapper.
     * @param {*} placeholder The placeholder value.
     * @param {*} [thisArg] The `this` binding of `func`.
     * @param {Array} [partials] The arguments to prepend to those provided to
     *  the new function.
     * @param {Array} [holders] The `partials` placeholder indexes.
     * @param {Array} [argPos] The argument positions of the new function.
     * @param {number} [ary] The arity cap of `func`.
     * @param {number} [arity] The arity of `func`.
     * @returns {Function} Returns the new wrapped function.
     */
    function createRecurry(func, bitmask, wrapFunc, placeholder, thisArg, partials, holders, argPos, ary, arity) {
      var isCurry = bitmask & WRAP_CURRY_FLAG,
          newHolders = isCurry ? holders : undefined,
          newHoldersRight = isCurry ? undefined : holders,
          newPartials = isCurry ? partials : undefined,
          newPartialsRight = isCurry ? undefined : partials;

      bitmask |= (isCurry ? WRAP_PARTIAL_FLAG : WRAP_PARTIAL_RIGHT_FLAG);
      bitmask &= ~(isCurry ? WRAP_PARTIAL_RIGHT_FLAG : WRAP_PARTIAL_FLAG);

      if (!(bitmask & WRAP_CURRY_BOUND_FLAG)) {
        bitmask &= ~(WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG);
      }
      var newData = [
        func, bitmask, thisArg, newPartials, newHolders, newPartialsRight,
        newHoldersRight, argPos, ary, arity
      ];

      var result = wrapFunc.apply(undefined, newData);
      if (isLaziable(func)) {
        setData(result, newData);
      }
      result.placeholder = placeholder;
      return setWrapToString(result, func, bitmask);
    }

    /**
     * Creates a function like `_.round`.
     *
     * @private
     * @param {string} methodName The name of the `Math` method to use when rounding.
     * @returns {Function} Returns the new round function.
     */
    function createRound(methodName) {
      var func = Math[methodName];
      return function(number, precision) {
        number = toNumber(number);
        precision = precision == null ? 0 : nativeMin(toInteger(precision), 292);
        if (precision) {
          // Shift with exponential notation to avoid floating-point issues.
          // See [MDN](https://mdn.io/round#Examples) for more details.
          var pair = (toString(number) + 'e').split('e'),
              value = func(pair[0] + 'e' + (+pair[1] + precision));

          pair = (toString(value) + 'e').split('e');
          return +(pair[0] + 'e' + (+pair[1] - precision));
        }
        return func(number);
      };
    }

    /**
     * Creates a set object of `values`.
     *
     * @private
     * @param {Array} values The values to add to the set.
     * @returns {Object} Returns the new set.
     */
    var createSet = !(Set && (1 / setToArray(new Set([,-0]))[1]) == INFINITY) ? noop : function(values) {
      return new Set(values);
    };

    /**
     * Creates a `_.toPairs` or `_.toPairsIn` function.
     *
     * @private
     * @param {Function} keysFunc The function to get the keys of a given object.
     * @returns {Function} Returns the new pairs function.
     */
    function createToPairs(keysFunc) {
      return function(object) {
        var tag = getTag(object);
        if (tag == mapTag) {
          return mapToArray(object);
        }
        if (tag == setTag) {
          return setToPairs(object);
        }
        return baseToPairs(object, keysFunc(object));
      };
    }

    /**
     * Creates a function that either curries or invokes `func` with optional
     * `this` binding and partially applied arguments.
     *
     * @private
     * @param {Function|string} func The function or method name to wrap.
     * @param {number} bitmask The bitmask flags.
     *    1 - `_.bind`
     *    2 - `_.bindKey`
     *    4 - `_.curry` or `_.curryRight` of a bound function
     *    8 - `_.curry`
     *   16 - `_.curryRight`
     *   32 - `_.partial`
     *   64 - `_.partialRight`
     *  128 - `_.rearg`
     *  256 - `_.ary`
     *  512 - `_.flip`
     * @param {*} [thisArg] The `this` binding of `func`.
     * @param {Array} [partials] The arguments to be partially applied.
     * @param {Array} [holders] The `partials` placeholder indexes.
     * @param {Array} [argPos] The argument positions of the new function.
     * @param {number} [ary] The arity cap of `func`.
     * @param {number} [arity] The arity of `func`.
     * @returns {Function} Returns the new wrapped function.
     */
    function createWrap(func, bitmask, thisArg, partials, holders, argPos, ary, arity) {
      var isBindKey = bitmask & WRAP_BIND_KEY_FLAG;
      if (!isBindKey && typeof func != 'function') {
        throw new TypeError(FUNC_ERROR_TEXT);
      }
      var length = partials ? partials.length : 0;
      if (!length) {
        bitmask &= ~(WRAP_PARTIAL_FLAG | WRAP_PARTIAL_RIGHT_FLAG);
        partials = holders = undefined;
      }
      ary = ary === undefined ? ary : nativeMax(toInteger(ary), 0);
      arity = arity === undefined ? arity : toInteger(arity);
      length -= holders ? holders.length : 0;

      if (bitmask & WRAP_PARTIAL_RIGHT_FLAG) {
        var partialsRight = partials,
            holdersRight = holders;

        partials = holders = undefined;
      }
      var data = isBindKey ? undefined : getData(func);

      var newData = [
        func, bitmask, thisArg, partials, holders, partialsRight, holdersRight,
        argPos, ary, arity
      ];

      if (data) {
        mergeData(newData, data);
      }
      func = newData[0];
      bitmask = newData[1];
      thisArg = newData[2];
      partials = newData[3];
      holders = newData[4];
      arity = newData[9] = newData[9] === undefined
        ? (isBindKey ? 0 : func.length)
        : nativeMax(newData[9] - length, 0);

      if (!arity && bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG)) {
        bitmask &= ~(WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG);
      }
      if (!bitmask || bitmask == WRAP_BIND_FLAG) {
        var result = createBind(func, bitmask, thisArg);
      } else if (bitmask == WRAP_CURRY_FLAG || bitmask == WRAP_CURRY_RIGHT_FLAG) {
        result = createCurry(func, bitmask, arity);
      } else if ((bitmask == WRAP_PARTIAL_FLAG || bitmask == (WRAP_BIND_FLAG | WRAP_PARTIAL_FLAG)) && !holders.length) {
        result = createPartial(func, bitmask, thisArg, partials);
      } else {
        result = createHybrid.apply(undefined, newData);
      }
      var setter = data ? baseSetData : setData;
      return setWrapToString(setter(result, newData), func, bitmask);
    }

    /**
     * Used by `_.defaults` to customize its `_.assignIn` use to assign properties
     * of source objects to the destination object for all destination properties
     * that resolve to `undefined`.
     *
     * @private
     * @param {*} objValue The destination value.
     * @param {*} srcValue The source value.
     * @param {string} key The key of the property to assign.
     * @param {Object} object The parent object of `objValue`.
     * @returns {*} Returns the value to assign.
     */
    function customDefaultsAssignIn(objValue, srcValue, key, object) {
      if (objValue === undefined ||
          (eq(objValue, objectProto[key]) && !hasOwnProperty.call(object, key))) {
        return srcValue;
      }
      return objValue;
    }

    /**
     * Used by `_.defaultsDeep` to customize its `_.merge` use to merge source
     * objects into destination objects that are passed thru.
     *
     * @private
     * @param {*} objValue The destination value.
     * @param {*} srcValue The source value.
     * @param {string} key The key of the property to merge.
     * @param {Object} object The parent object of `objValue`.
     * @param {Object} source The parent object of `srcValue`.
     * @param {Object} [stack] Tracks traversed source values and their merged
     *  counterparts.
     * @returns {*} Returns the value to assign.
     */
    function customDefaultsMerge(objValue, srcValue, key, object, source, stack) {
      if (isObject(objValue) && isObject(srcValue)) {
        // Recursively merge objects and arrays (susceptible to call stack limits).
        stack.set(srcValue, objValue);
        baseMerge(objValue, srcValue, undefined, customDefaultsMerge, stack);
        stack['delete'](srcValue);
      }
      return objValue;
    }

    /**
     * Used by `_.omit` to customize its `_.cloneDeep` use to only clone plain
     * objects.
     *
     * @private
     * @param {*} value The value to inspect.
     * @param {string} key The key of the property to inspect.
     * @returns {*} Returns the uncloned value or `undefined` to defer cloning to `_.cloneDeep`.
     */
    function customOmitClone(value) {
      return isPlainObject(value) ? undefined : value;
    }

    /**
     * A specialized version of `baseIsEqualDeep` for arrays with support for
     * partial deep comparisons.
     *
     * @private
     * @param {Array} array The array to compare.
     * @param {Array} other The other array to compare.
     * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.
     * @param {Function} customizer The function to customize comparisons.
     * @param {Function} equalFunc The function to determine equivalents of values.
     * @param {Object} stack Tracks traversed `array` and `other` objects.
     * @returns {boolean} Returns `true` if the arrays are equivalent, else `false`.
     */
    function equalArrays(array, other, bitmask, customizer, equalFunc, stack) {
      var isPartial = bitmask & COMPARE_PARTIAL_FLAG,
          arrLength = array.length,
          othLength = other.length;

      if (arrLength != othLength && !(isPartial && othLength > arrLength)) {
        return false;
      }
      // Assume cyclic values are equal.
      var stacked = stack.get(array);
      if (stacked && stack.get(other)) {
        return stacked == other;
      }
      var index = -1,
          result = true,
          seen = (bitmask & COMPARE_UNORDERED_FLAG) ? new SetCache : undefined;

      stack.set(array, other);
      stack.set(other, array);

      // Ignore non-index properties.
      while (++index < arrLength) {
        var arrValue = array[index],
            othValue = other[index];

        if (customizer) {
          var compared = isPartial
            ? customizer(othValue, arrValue, index, other, array, stack)
            : customizer(arrValue, othValue, index, array, other, stack);
        }
        if (compared !== undefined) {
          if (compared) {
            continue;
          }
          result = false;
          break;
        }
        // Recursively compare arrays (susceptible to call stack limits).
        if (seen) {
          if (!arraySome(other, function(othValue, othIndex) {
                if (!cacheHas(seen, othIndex) &&
                    (arrValue === othValue || equalFunc(arrValue, othValue, bitmask, customizer, stack))) {
                  return seen.push(othIndex);
                }
              })) {
            result = false;
            break;
          }
        } else if (!(
              arrValue === othValue ||
                equalFunc(arrValue, othValue, bitmask, customizer, stack)
            )) {
          result = false;
          break;
        }
      }
      stack['delete'](array);
      stack['delete'](other);
      return result;
    }

    /**
     * A specialized version of `baseIsEqualDeep` for comparing objects of
     * the same `toStringTag`.
     *
     * **Note:** This function only supports comparing values with tags of
     * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`.
     *
     * @private
     * @param {Object} object The object to compare.
     * @param {Object} other The other object to compare.
     * @param {string} tag The `toStringTag` of the objects to compare.
     * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.
     * @param {Function} customizer The function to customize comparisons.
     * @param {Function} equalFunc The function to determine equivalents of values.
     * @param {Object} stack Tracks traversed `object` and `other` objects.
     * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
     */
    function equalByTag(object, other, tag, bitmask, customizer, equalFunc, stack) {
      switch (tag) {
        case dataViewTag:
          if ((object.byteLength != other.byteLength) ||
              (object.byteOffset != other.byteOffset)) {
            return false;
          }
          object = object.buffer;
          other = other.buffer;

        case arrayBufferTag:
          if ((object.byteLength != other.byteLength) ||
              !equalFunc(new Uint8Array(object), new Uint8Array(other))) {
            return false;
          }
          return true;

        case boolTag:
        case dateTag:
        case numberTag:
          // Coerce booleans to `1` or `0` and dates to milliseconds.
          // Invalid dates are coerced to `NaN`.
          return eq(+object, +other);

        case errorTag:
          return object.name == other.name && object.message == other.message;

        case regexpTag:
        case stringTag:
          // Coerce regexes to strings and treat strings, primitives and objects,
          // as equal. See http://www.ecma-international.org/ecma-262/7.0/#sec-regexp.prototype.tostring
          // for more details.
          return object == (other + '');

        case mapTag:
          var convert = mapToArray;

        case setTag:
          var isPartial = bitmask & COMPARE_PARTIAL_FLAG;
          convert || (convert = setToArray);

          if (object.size != other.size && !isPartial) {
            return false;
          }
          // Assume cyclic values are equal.
          var stacked = stack.get(object);
          if (stacked) {
            return stacked == other;
          }
          bitmask |= COMPARE_UNORDERED_FLAG;

          // Recursively compare objects (susceptible to call stack limits).
          stack.set(object, other);
          var result = equalArrays(convert(object), convert(other), bitmask, customizer, equalFunc, stack);
          stack['delete'](object);
          return result;

        case symbolTag:
          if (symbolValueOf) {
            return symbolValueOf.call(object) == symbolValueOf.call(other);
          }
      }
      return false;
    }

    /**
     * A specialized version of `baseIsEqualDeep` for objects with support for
     * partial deep comparisons.
     *
     * @private
     * @param {Object} object The object to compare.
     * @param {Object} other The other object to compare.
     * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.
     * @param {Function} customizer The function to customize comparisons.
     * @param {Function} equalFunc The function to determine equivalents of values.
     * @param {Object} stack Tracks traversed `object` and `other` objects.
     * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
     */
    function equalObjects(object, other, bitmask, customizer, equalFunc, stack) {
      var isPartial = bitmask & COMPARE_PARTIAL_FLAG,
          objProps = getAllKeys(object),
          objLength = objProps.length,
          othProps = getAllKeys(other),
          othLength = othProps.length;

      if (objLength != othLength && !isPartial) {
        return false;
      }
      var index = objLength;
      while (index--) {
        var key = objProps[index];
        if (!(isPartial ? key in other : hasOwnProperty.call(other, key))) {
          return false;
        }
      }
      // Assume cyclic values are equal.
      var stacked = stack.get(object);
      if (stacked && stack.get(other)) {
        return stacked == other;
      }
      var result = true;
      stack.set(object, other);
      stack.set(other, object);

      var skipCtor = isPartial;
      while (++index < objLength) {
        key = objProps[index];
        var objValue = object[key],
            othValue = other[key];

        if (customizer) {
          var compared = isPartial
            ? customizer(othValue, objValue, key, other, object, stack)
            : customizer(objValue, othValue, key, object, other, stack);
        }
        // Recursively compare objects (susceptible to call stack limits).
        if (!(compared === undefined
              ? (objValue === othValue || equalFunc(objValue, othValue, bitmask, customizer, stack))
              : compared
            )) {
          result = false;
          break;
        }
        skipCtor || (skipCtor = key == 'constructor');
      }
      if (result && !skipCtor) {
        var objCtor = object.constructor,
            othCtor = other.constructor;

        // Non `Object` object instances with different constructors are not equal.
        if (objCtor != othCtor &&
            ('constructor' in object && 'constructor' in other) &&
            !(typeof objCtor == 'function' && objCtor instanceof objCtor &&
              typeof othCtor == 'function' && othCtor instanceof othCtor)) {
          result = false;
        }
      }
      stack['delete'](object);
      stack['delete'](other);
      return result;
    }

    /**
     * A specialized version of `baseRest` which flattens the rest array.
     *
     * @private
     * @param {Function} func The function to apply a rest parameter to.
     * @returns {Function} Returns the new function.
     */
    function flatRest(func) {
      return setToString(overRest(func, undefined, flatten), func + '');
    }

    /**
     * Creates an array of own enumerable property names and symbols of `object`.
     *
     * @private
     * @param {Object} object The object to query.
     * @returns {Array} Returns the array of property names and symbols.
     */
    function getAllKeys(object) {
      return baseGetAllKeys(object, keys, getSymbols);
    }

    /**
     * Creates an array of own and inherited enumerable property names and
     * symbols of `object`.
     *
     * @private
     * @param {Object} object The object to query.
     * @returns {Array} Returns the array of property names and symbols.
     */
    function getAllKeysIn(object) {
      return baseGetAllKeys(object, keysIn, getSymbolsIn);
    }

    /**
     * Gets metadata for `func`.
     *
     * @private
     * @param {Function} func The function to query.
     * @returns {*} Returns the metadata for `func`.
     */
    var getData = !metaMap ? noop : function(func) {
      return metaMap.get(func);
    };

    /**
     * Gets the name of `func`.
     *
     * @private
     * @param {Function} func The function to query.
     * @returns {string} Returns the function name.
     */
    function getFuncName(func) {
      var result = (func.name + ''),
          array = realNames[result],
          length = hasOwnProperty.call(realNames, result) ? array.length : 0;

      while (length--) {
        var data = array[length],
            otherFunc = data.func;
        if (otherFunc == null || otherFunc == func) {
          return data.name;
        }
      }
      return result;
    }

    /**
     * Gets the argument placeholder value for `func`.
     *
     * @private
     * @param {Function} func The function to inspect.
     * @returns {*} Returns the placeholder value.
     */
    function getHolder(func) {
      var object = hasOwnProperty.call(lodash, 'placeholder') ? lodash : func;
      return object.placeholder;
    }

    /**
     * Gets the appropriate "iteratee" function. If `_.iteratee` is customized,
     * this function returns the custom method, otherwise it returns `baseIteratee`.
     * If arguments are provided, the chosen function is invoked with them and
     * its result is returned.
     *
     * @private
     * @param {*} [value] The value to convert to an iteratee.
     * @param {number} [arity] The arity of the created iteratee.
     * @returns {Function} Returns the chosen function or its result.
     */
    function getIteratee() {
      var result = lodash.iteratee || iteratee;
      result = result === iteratee ? baseIteratee : result;
      return arguments.length ? result(arguments[0], arguments[1]) : result;
    }

    /**
     * Gets the data for `map`.
     *
     * @private
     * @param {Object} map The map to query.
     * @param {string} key The reference key.
     * @returns {*} Returns the map data.
     */
    function getMapData(map, key) {
      var data = map.__data__;
      return isKeyable(key)
        ? data[typeof key == 'string' ? 'string' : 'hash']
        : data.map;
    }

    /**
     * Gets the property names, values, and compare flags of `object`.
     *
     * @private
     * @param {Object} object The object to query.
     * @returns {Array} Returns the match data of `object`.
     */
    function getMatchData(object) {
      var result = keys(object),
          length = result.length;

      while (length--) {
        var key = result[length],
            value = object[key];

        result[length] = [key, value, isStrictComparable(value)];
      }
      return result;
    }

    /**
     * Gets the native function at `key` of `object`.
     *
     * @private
     * @param {Object} object The object to query.
     * @param {string} key The key of the method to get.
     * @returns {*} Returns the function if it's native, else `undefined`.
     */
    function getNative(object, key) {
      var value = getValue(object, key);
      return baseIsNative(value) ? value : undefined;
    }

    /**
     * A specialized version of `baseGetTag` which ignores `Symbol.toStringTag` values.
     *
     * @private
     * @param {*} value The value to query.
     * @returns {string} Returns the raw `toStringTag`.
     */
    function getRawTag(value) {
      var isOwn = hasOwnProperty.call(value, symToStringTag),
          tag = value[symToStringTag];

      try {
        value[symToStringTag] = undefined;
        var unmasked = true;
      } catch (e) {}

      var result = nativeObjectToString.call(value);
      if (unmasked) {
        if (isOwn) {
          value[symToStringTag] = tag;
        } else {
          delete value[symToStringTag];
        }
      }
      return result;
    }

    /**
     * Creates an array of the own enumerable symbols of `object`.
     *
     * @private
     * @param {Object} object The object to query.
     * @returns {Array} Returns the array of symbols.
     */
    var getSymbols = !nativeGetSymbols ? stubArray : function(object) {
      if (object == null) {
        return [];
      }
      object = Object(object);
      return arrayFilter(nativeGetSymbols(object), function(symbol) {
        return propertyIsEnumerable.call(object, symbol);
      });
    };

    /**
     * Creates an array of the own and inherited enumerable symbols of `object`.
     *
     * @private
     * @param {Object} object The object to query.
     * @returns {Array} Returns the array of symbols.
     */
    var getSymbolsIn = !nativeGetSymbols ? stubArray : function(object) {
      var result = [];
      while (object) {
        arrayPush(result, getSymbols(object));
        object = getPrototype(object);
      }
      return result;
    };

    /**
     * Gets the `toStringTag` of `value`.
     *
     * @private
     * @param {*} value The value to query.
     * @returns {string} Returns the `toStringTag`.
     */
    var getTag = baseGetTag;

    // Fallback for data views, maps, sets, and weak maps in IE 11 and promises in Node.js < 6.
    if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) ||
        (Map && getTag(new Map) != mapTag) ||
        (Promise && getTag(Promise.resolve()) != promiseTag) ||
        (Set && getTag(new Set) != setTag) ||
        (WeakMap && getTag(new WeakMap) != weakMapTag)) {
      getTag = function(value) {
        var result = baseGetTag(value),
            Ctor = result == objectTag ? value.constructor : undefined,
            ctorString = Ctor ? toSource(Ctor) : '';

        if (ctorString) {
          switch (ctorString) {
            case dataViewCtorString: return dataViewTag;
            case mapCtorString: return mapTag;
            case promiseCtorString: return promiseTag;
            case setCtorString: return setTag;
            case weakMapCtorString: return weakMapTag;
          }
        }
        return result;
      };
    }

    /**
     * Gets the view, applying any `transforms` to the `start` and `end` positions.
     *
     * @private
     * @param {number} start The start of the view.
     * @param {number} end The end of the view.
     * @param {Array} transforms The transformations to apply to the view.
     * @returns {Object} Returns an object containing the `start` and `end`
     *  positions of the view.
     */
    function getView(start, end, transforms) {
      var index = -1,
          length = transforms.length;

      while (++index < length) {
        var data = transforms[index],
            size = data.size;

        switch (data.type) {
          case 'drop':      start += size; break;
          case 'dropRight': end -= size; break;
          case 'take':      end = nativeMin(end, start + size); break;
          case 'takeRight': start = nativeMax(start, end - size); break;
        }
      }
      return { 'start': start, 'end': end };
    }

    /**
     * Extracts wrapper details from the `source` body comment.
     *
     * @private
     * @param {string} source The source to inspect.
     * @returns {Array} Returns the wrapper details.
     */
    function getWrapDetails(source) {
      var match = source.match(reWrapDetails);
      return match ? match[1].split(reSplitDetails) : [];
    }

    /**
     * Checks if `path` exists on `object`.
     *
     * @private
     * @param {Object} object The object to query.
     * @param {Array|string} path The path to check.
     * @param {Function} hasFunc The function to check properties.
     * @returns {boolean} Returns `true` if `path` exists, else `false`.
     */
    function hasPath(object, path, hasFunc) {
      path = castPath(path, object);

      var index = -1,
          length = path.length,
          result = false;

      while (++index < length) {
        var key = toKey(path[index]);
        if (!(result = object != null && hasFunc(object, key))) {
          break;
        }
        object = object[key];
      }
      if (result || ++index != length) {
        return result;
      }
      length = object == null ? 0 : object.length;
      return !!length && isLength(length) && isIndex(key, length) &&
        (isArray(object) || isArguments(object));
    }

    /**
     * Initializes an array clone.
     *
     * @private
     * @param {Array} array The array to clone.
     * @returns {Array} Returns the initialized clone.
     */
    function initCloneArray(array) {
      var length = array.length,
          result = array.constructor(length);

      // Add properties assigned by `RegExp#exec`.
      if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) {
        result.index = array.index;
        result.input = array.input;
      }
      return result;
    }

    /**
     * Initializes an object clone.
     *
     * @private
     * @param {Object} object The object to clone.
     * @returns {Object} Returns the initialized clone.
     */
    function initCloneObject(object) {
      return (typeof object.constructor == 'function' && !isPrototype(object))
        ? baseCreate(getPrototype(object))
        : {};
    }

    /**
     * Initializes an object clone based on its `toStringTag`.
     *
     * **Note:** This function only supports cloning values with tags of
     * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`.
     *
     * @private
     * @param {Object} object The object to clone.
     * @param {string} tag The `toStringTag` of the object to clone.
     * @param {Function} cloneFunc The function to clone values.
     * @param {boolean} [isDeep] Specify a deep clone.
     * @returns {Object} Returns the initialized clone.
     */
    function initCloneByTag(object, tag, cloneFunc, isDeep) {
      var Ctor = object.constructor;
      switch (tag) {
        case arrayBufferTag:
          return cloneArrayBuffer(object);

        case boolTag:
        case dateTag:
          return new Ctor(+object);

        case dataViewTag:
          return cloneDataView(object, isDeep);

        case float32Tag: case float64Tag:
        case int8Tag: case int16Tag: case int32Tag:
        case uint8Tag: case uint8ClampedTag: case uint16Tag: case uint32Tag:
          return cloneTypedArray(object, isDeep);

        case mapTag:
          return cloneMap(object, isDeep, cloneFunc);

        case numberTag:
        case stringTag:
          return new Ctor(object);

        case regexpTag:
          return cloneRegExp(object);

        case setTag:
          return cloneSet(object, isDeep, cloneFunc);

        case symbolTag:
          return cloneSymbol(object);
      }
    }

    /**
     * Inserts wrapper `details` in a comment at the top of the `source` body.
     *
     * @private
     * @param {string} source The source to modify.
     * @returns {Array} details The details to insert.
     * @returns {string} Returns the modified source.
     */
    function insertWrapDetails(source, details) {
      var length = details.length;
      if (!length) {
        return source;
      }
      var lastIndex = length - 1;
      details[lastIndex] = (length > 1 ? '& ' : '') + details[lastIndex];
      details = details.join(length > 2 ? ', ' : ' ');
      return source.replace(reWrapComment, '{\n/* [wrapped with ' + details + '] */\n');
    }

    /**
     * Checks if `value` is a flattenable `arguments` object or array.
     *
     * @private
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is flattenable, else `false`.
     */
    function isFlattenable(value) {
      return isArray(value) || isArguments(value) ||
        !!(spreadableSymbol && value && value[spreadableSymbol]);
    }

    /**
     * Checks if `value` is a valid array-like index.
     *
     * @private
     * @param {*} value The value to check.
     * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.
     * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.
     */
    function isIndex(value, length) {
      length = length == null ? MAX_SAFE_INTEGER : length;
      return !!length &&
        (typeof value == 'number' || reIsUint.test(value)) &&
        (value > -1 && value % 1 == 0 && value < length);
    }

    /**
     * Checks if the given arguments are from an iteratee call.
     *
     * @private
     * @param {*} value The potential iteratee value argument.
     * @param {*} index The potential iteratee index or key argument.
     * @param {*} object The potential iteratee object argument.
     * @returns {boolean} Returns `true` if the arguments are from an iteratee call,
     *  else `false`.
     */
    function isIterateeCall(value, index, object) {
      if (!isObject(object)) {
        return false;
      }
      var type = typeof index;
      if (type == 'number'
            ? (isArrayLike(object) && isIndex(index, object.length))
            : (type == 'string' && index in object)
          ) {
        return eq(object[index], value);
      }
      return false;
    }

    /**
     * Checks if `value` is a property name and not a property path.
     *
     * @private
     * @param {*} value The value to check.
     * @param {Object} [object] The object to query keys on.
     * @returns {boolean} Returns `true` if `value` is a property name, else `false`.
     */
    function isKey(value, object) {
      if (isArray(value)) {
        return false;
      }
      var type = typeof value;
      if (type == 'number' || type == 'symbol' || type == 'boolean' ||
          value == null || isSymbol(value)) {
        return true;
      }
      return reIsPlainProp.test(value) || !reIsDeepProp.test(value) ||
        (object != null && value in Object(object));
    }

    /**
     * Checks if `value` is suitable for use as unique object key.
     *
     * @private
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is suitable, else `false`.
     */
    function isKeyable(value) {
      var type = typeof value;
      return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean')
        ? (value !== '__proto__')
        : (value === null);
    }

    /**
     * Checks if `func` has a lazy counterpart.
     *
     * @private
     * @param {Function} func The function to check.
     * @returns {boolean} Returns `true` if `func` has a lazy counterpart,
     *  else `false`.
     */
    function isLaziable(func) {
      var funcName = getFuncName(func),
          other = lodash[funcName];

      if (typeof other != 'function' || !(funcName in LazyWrapper.prototype)) {
        return false;
      }
      if (func === other) {
        return true;
      }
      var data = getData(other);
      return !!data && func === data[0];
    }

    /**
     * Checks if `func` has its source masked.
     *
     * @private
     * @param {Function} func The function to check.
     * @returns {boolean} Returns `true` if `func` is masked, else `false`.
     */
    function isMasked(func) {
      return !!maskSrcKey && (maskSrcKey in func);
    }

    /**
     * Checks if `func` is capable of being masked.
     *
     * @private
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `func` is maskable, else `false`.
     */
    var isMaskable = coreJsData ? isFunction : stubFalse;

    /**
     * Checks if `value` is likely a prototype object.
     *
     * @private
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a prototype, else `false`.
     */
    function isPrototype(value) {
      var Ctor = value && value.constructor,
          proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto;

      return value === proto;
    }

    /**
     * Checks if `value` is suitable for strict equality comparisons, i.e. `===`.
     *
     * @private
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` if suitable for strict
     *  equality comparisons, else `false`.
     */
    function isStrictComparable(value) {
      return value === value && !isObject(value);
    }

    /**
     * A specialized version of `matchesProperty` for source values suitable
     * for strict equality comparisons, i.e. `===`.
     *
     * @private
     * @param {string} key The key of the property to get.
     * @param {*} srcValue The value to match.
     * @returns {Function} Returns the new spec function.
     */
    function matchesStrictComparable(key, srcValue) {
      return function(object) {
        if (object == null) {
          return false;
        }
        return object[key] === srcValue &&
          (srcValue !== undefined || (key in Object(object)));
      };
    }

    /**
     * A specialized version of `_.memoize` which clears the memoized function's
     * cache when it exceeds `MAX_MEMOIZE_SIZE`.
     *
     * @private
     * @param {Function} func The function to have its output memoized.
     * @returns {Function} Returns the new memoized function.
     */
    function memoizeCapped(func) {
      var result = memoize(func, function(key) {
        if (cache.size === MAX_MEMOIZE_SIZE) {
          cache.clear();
        }
        return key;
      });

      var cache = result.cache;
      return result;
    }

    /**
     * Merges the function metadata of `source` into `data`.
     *
     * Merging metadata reduces the number of wrappers used to invoke a function.
     * This is possible because methods like `_.bind`, `_.curry`, and `_.partial`
     * may be applied regardless of execution order. Methods like `_.ary` and
     * `_.rearg` modify function arguments, making the order in which they are
     * executed important, preventing the merging of metadata. However, we make
     * an exception for a safe combined case where curried functions have `_.ary`
     * and or `_.rearg` applied.
     *
     * @private
     * @param {Array} data The destination metadata.
     * @param {Array} source The source metadata.
     * @returns {Array} Returns `data`.
     */
    function mergeData(data, source) {
      var bitmask = data[1],
          srcBitmask = source[1],
          newBitmask = bitmask | srcBitmask,
          isCommon = newBitmask < (WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG | WRAP_ARY_FLAG);

      var isCombo =
        ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_CURRY_FLAG)) ||
        ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_REARG_FLAG) && (data[7].length <= source[8])) ||
        ((srcBitmask == (WRAP_ARY_FLAG | WRAP_REARG_FLAG)) && (source[7].length <= source[8]) && (bitmask == WRAP_CURRY_FLAG));

      // Exit early if metadata can't be merged.
      if (!(isCommon || isCombo)) {
        return data;
      }
      // Use source `thisArg` if available.
      if (srcBitmask & WRAP_BIND_FLAG) {
        data[2] = source[2];
        // Set when currying a bound function.
        newBitmask |= bitmask & WRAP_BIND_FLAG ? 0 : WRAP_CURRY_BOUND_FLAG;
      }
      // Compose partial arguments.
      var value = source[3];
      if (value) {
        var partials = data[3];
        data[3] = partials ? composeArgs(partials, value, source[4]) : value;
        data[4] = partials ? replaceHolders(data[3], PLACEHOLDER) : source[4];
      }
      // Compose partial right arguments.
      value = source[5];
      if (value) {
        partials = data[5];
        data[5] = partials ? composeArgsRight(partials, value, source[6]) : value;
        data[6] = partials ? replaceHolders(data[5], PLACEHOLDER) : source[6];
      }
      // Use source `argPos` if available.
      value = source[7];
      if (value) {
        data[7] = value;
      }
      // Use source `ary` if it's smaller.
      if (srcBitmask & WRAP_ARY_FLAG) {
        data[8] = data[8] == null ? source[8] : nativeMin(data[8], source[8]);
      }
      // Use source `arity` if one is not provided.
      if (data[9] == null) {
        data[9] = source[9];
      }
      // Use source `func` and merge bitmasks.
      data[0] = source[0];
      data[1] = newBitmask;

      return data;
    }

    /**
     * This function is like
     * [`Object.keys`](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)
     * except that it includes inherited enumerable properties.
     *
     * @private
     * @param {Object} object The object to query.
     * @returns {Array} Returns the array of property names.
     */
    function nativeKeysIn(object) {
      var result = [];
      if (object != null) {
        for (var key in Object(object)) {
          result.push(key);
        }
      }
      return result;
    }

    /**
     * Converts `value` to a string using `Object.prototype.toString`.
     *
     * @private
     * @param {*} value The value to convert.
     * @returns {string} Returns the converted string.
     */
    function objectToString(value) {
      return nativeObjectToString.call(value);
    }

    /**
     * A specialized version of `baseRest` which transforms the rest array.
     *
     * @private
     * @param {Function} func The function to apply a rest parameter to.
     * @param {number} [start=func.length-1] The start position of the rest parameter.
     * @param {Function} transform The rest array transform.
     * @returns {Function} Returns the new function.
     */
    function overRest(func, start, transform) {
      start = nativeMax(start === undefined ? (func.length - 1) : start, 0);
      return function() {
        var args = arguments,
            index = -1,
            length = nativeMax(args.length - start, 0),
            array = Array(length);

        while (++index < length) {
          array[index] = args[start + index];
        }
        index = -1;
        var otherArgs = Array(start + 1);
        while (++index < start) {
          otherArgs[index] = args[index];
        }
        otherArgs[start] = transform(array);
        return apply(func, this, otherArgs);
      };
    }

    /**
     * Gets the parent value at `path` of `object`.
     *
     * @private
     * @param {Object} object The object to query.
     * @param {Array} path The path to get the parent value of.
     * @returns {*} Returns the parent value.
     */
    function parent(object, path) {
      return path.length < 2 ? object : baseGet(object, baseSlice(path, 0, -1));
    }

    /**
     * Reorder `array` according to the specified indexes where the element at
     * the first index is assigned as the first element, the element at
     * the second index is assigned as the second element, and so on.
     *
     * @private
     * @param {Array} array The array to reorder.
     * @param {Array} indexes The arranged array indexes.
     * @returns {Array} Returns `array`.
     */
    function reorder(array, indexes) {
      var arrLength = array.length,
          length = nativeMin(indexes.length, arrLength),
          oldArray = copyArray(array);

      while (length--) {
        var index = indexes[length];
        array[length] = isIndex(index, arrLength) ? oldArray[index] : undefined;
      }
      return array;
    }

    /**
     * Sets metadata for `func`.
     *
     * **Note:** If this function becomes hot, i.e. is invoked a lot in a short
     * period of time, it will trip its breaker and transition to an identity
     * function to avoid garbage collection pauses in V8. See
     * [V8 issue 2070](https://bugs.chromium.org/p/v8/issues/detail?id=2070)
     * for more details.
     *
     * @private
     * @param {Function} func The function to associate metadata with.
     * @param {*} data The metadata.
     * @returns {Function} Returns `func`.
     */
    var setData = shortOut(baseSetData);

    /**
     * A simple wrapper around the global [`setTimeout`](https://mdn.io/setTimeout).
     *
     * @private
     * @param {Function} func The function to delay.
     * @param {number} wait The number of milliseconds to delay invocation.
     * @returns {number|Object} Returns the timer id or timeout object.
     */
    var setTimeout = ctxSetTimeout || function(func, wait) {
      return root.setTimeout(func, wait);
    };

    /**
     * Sets the `toString` method of `func` to return `string`.
     *
     * @private
     * @param {Function} func The function to modify.
     * @param {Function} string The `toString` result.
     * @returns {Function} Returns `func`.
     */
    var setToString = shortOut(baseSetToString);

    /**
     * Sets the `toString` method of `wrapper` to mimic the source of `reference`
     * with wrapper details in a comment at the top of the source body.
     *
     * @private
     * @param {Function} wrapper The function to modify.
     * @param {Function} reference The reference function.
     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
     * @returns {Function} Returns `wrapper`.
     */
    function setWrapToString(wrapper, reference, bitmask) {
      var source = (reference + '');
      return setToString(wrapper, insertWrapDetails(source, updateWrapDetails(getWrapDetails(source), bitmask)));
    }

    /**
     * Creates a function that'll short out and invoke `identity` instead
     * of `func` when it's called `HOT_COUNT` or more times in `HOT_SPAN`
     * milliseconds.
     *
     * @private
     * @param {Function} func The function to restrict.
     * @returns {Function} Returns the new shortable function.
     */
    function shortOut(func) {
      var count = 0,
          lastCalled = 0;

      return function() {
        var stamp = nativeNow(),
            remaining = HOT_SPAN - (stamp - lastCalled);

        lastCalled = stamp;
        if (remaining > 0) {
          if (++count >= HOT_COUNT) {
            return arguments[0];
          }
        } else {
          count = 0;
        }
        return func.apply(undefined, arguments);
      };
    }

    /**
     * A specialized version of `_.shuffle` which mutates and sets the size of `array`.
     *
     * @private
     * @param {Array} array The array to shuffle.
     * @param {number} [size=array.length] The size of `array`.
     * @returns {Array} Returns `array`.
     */
    function shuffleSelf(array, size) {
      var index = -1,
          length = array.length,
          lastIndex = length - 1;

      size = size === undefined ? length : size;
      while (++index < size) {
        var rand = baseRandom(index, lastIndex),
            value = array[rand];

        array[rand] = array[index];
        array[index] = value;
      }
      array.length = size;
      return array;
    }

    /**
     * Converts `string` to a property path array.
     *
     * @private
     * @param {string} string The string to convert.
     * @returns {Array} Returns the property path array.
     */
    var stringToPath = memoizeCapped(function(string) {
      var result = [];
      if (reLeadingDot.test(string)) {
        result.push('');
      }
      string.replace(rePropName, function(match, number, quote, string) {
        result.push(quote ? string.replace(reEscapeChar, '$1') : (number || match));
      });
      return result;
    });

    /**
     * Converts `value` to a string key if it's not a string or symbol.
     *
     * @private
     * @param {*} value The value to inspect.
     * @returns {string|symbol} Returns the key.
     */
    function toKey(value) {
      if (typeof value == 'string' || isSymbol(value)) {
        return value;
      }
      var result = (value + '');
      return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result;
    }

    /**
     * Converts `func` to its source code.
     *
     * @private
     * @param {Function} func The function to convert.
     * @returns {string} Returns the source code.
     */
    function toSource(func) {
      if (func != null) {
        try {
          return funcToString.call(func);
        } catch (e) {}
        try {
          return (func + '');
        } catch (e) {}
      }
      return '';
    }

    /**
     * Updates wrapper `details` based on `bitmask` flags.
     *
     * @private
     * @returns {Array} details The details to modify.
     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
     * @returns {Array} Returns `details`.
     */
    function updateWrapDetails(details, bitmask) {
      arrayEach(wrapFlags, function(pair) {
        var value = '_.' + pair[0];
        if ((bitmask & pair[1]) && !arrayIncludes(details, value)) {
          details.push(value);
        }
      });
      return details.sort();
    }

    /**
     * Creates a clone of `wrapper`.
     *
     * @private
     * @param {Object} wrapper The wrapper to clone.
     * @returns {Object} Returns the cloned wrapper.
     */
    function wrapperClone(wrapper) {
      if (wrapper instanceof LazyWrapper) {
        return wrapper.clone();
      }
      var result = new LodashWrapper(wrapper.__wrapped__, wrapper.__chain__);
      result.__actions__ = copyArray(wrapper.__actions__);
      result.__index__  = wrapper.__index__;
      result.__values__ = wrapper.__values__;
      return result;
    }

    /*------------------------------------------------------------------------*/

    /**
     * Creates an array of elements split into groups the length of `size`.
     * If `array` can't be split evenly, the final chunk will be the remaining
     * elements.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Array
     * @param {Array} array The array to process.
     * @param {number} [size=1] The length of each chunk
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {Array} Returns the new array of chunks.
     * @example
     *
     * _.chunk(['a', 'b', 'c', 'd'], 2);
     * // => [['a', 'b'], ['c', 'd']]
     *
     * _.chunk(['a', 'b', 'c', 'd'], 3);
     * // => [['a', 'b', 'c'], ['d']]
     */
    function chunk(array, size, guard) {
      if ((guard ? isIterateeCall(array, size, guard) : size === undefined)) {
        size = 1;
      } else {
        size = nativeMax(toInteger(size), 0);
      }
      var length = array == null ? 0 : array.length;
      if (!length || size < 1) {
        return [];
      }
      var index = 0,
          resIndex = 0,
          result = Array(nativeCeil(length / size));

      while (index < length) {
        result[resIndex++] = baseSlice(array, index, (index += size));
      }
      return result;
    }

    /**
     * Creates an array with all falsey values removed. The values `false`, `null`,
     * `0`, `""`, `undefined`, and `NaN` are falsey.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Array
     * @param {Array} array The array to compact.
     * @returns {Array} Returns the new array of filtered values.
     * @example
     *
     * _.compact([0, 1, false, 2, '', 3]);
     * // => [1, 2, 3]
     */
    function compact(array) {
      var index = -1,
          length = array == null ? 0 : array.length,
          resIndex = 0,
          result = [];

      while (++index < length) {
        var value = array[index];
        if (value) {
          result[resIndex++] = value;
        }
      }
      return result;
    }

    /**
     * Creates a new array concatenating `array` with any additional arrays
     * and/or values.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The array to concatenate.
     * @param {...*} [values] The values to concatenate.
     * @returns {Array} Returns the new concatenated array.
     * @example
     *
     * var array = [1];
     * var other = _.concat(array, 2, [3], [[4]]);
     *
     * console.log(other);
     * // => [1, 2, 3, [4]]
     *
     * console.log(array);
     * // => [1]
     */
    function concat() {
      var length = arguments.length;
      if (!length) {
        return [];
      }
      var args = Array(length - 1),
          array = arguments[0],
          index = length;

      while (index--) {
        args[index - 1] = arguments[index];
      }
      return arrayPush(isArray(array) ? copyArray(array) : [array], baseFlatten(args, 1));
    }

    /**
     * Creates an array of `array` values not included in the other given arrays
     * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
     * for equality comparisons. The order and references of result values are
     * determined by the first array.
     *
     * **Note:** Unlike `_.pullAll`, this method returns a new array.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Array
     * @param {Array} array The array to inspect.
     * @param {...Array} [values] The values to exclude.
     * @returns {Array} Returns the new array of filtered values.
     * @see _.without, _.xor
     * @example
     *
     * _.difference([2, 1], [2, 3]);
     * // => [1]
     */
    var difference = baseRest(function(array, values) {
      return isArrayLikeObject(array)
        ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true))
        : [];
    });

    /**
     * This method is like `_.difference` except that it accepts `iteratee` which
     * is invoked for each element of `array` and `values` to generate the criterion
     * by which they're compared. The order and references of result values are
     * determined by the first array. The iteratee is invoked with one argument:
     * (value).
     *
     * **Note:** Unlike `_.pullAllBy`, this method returns a new array.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The array to inspect.
     * @param {...Array} [values] The values to exclude.
     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
     * @returns {Array} Returns the new array of filtered values.
     * @example
     *
     * _.differenceBy([2.1, 1.2], [2.3, 3.4], Math.floor);
     * // => [1.2]
     *
     * // The `_.property` iteratee shorthand.
     * _.differenceBy([{ 'x': 2 }, { 'x': 1 }], [{ 'x': 1 }], 'x');
     * // => [{ 'x': 2 }]
     */
    var differenceBy = baseRest(function(array, values) {
      var iteratee = last(values);
      if (isArrayLikeObject(iteratee)) {
        iteratee = undefined;
      }
      return isArrayLikeObject(array)
        ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true), getIteratee(iteratee, 2))
        : [];
    });

    /**
     * This method is like `_.difference` except that it accepts `comparator`
     * which is invoked to compare elements of `array` to `values`. The order and
     * references of result values are determined by the first array. The comparator
     * is invoked with two arguments: (arrVal, othVal).
     *
     * **Note:** Unlike `_.pullAllWith`, this method returns a new array.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The array to inspect.
     * @param {...Array} [values] The values to exclude.
     * @param {Function} [comparator] The comparator invoked per element.
     * @returns {Array} Returns the new array of filtered values.
     * @example
     *
     * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];
     *
     * _.differenceWith(objects, [{ 'x': 1, 'y': 2 }], _.isEqual);
     * // => [{ 'x': 2, 'y': 1 }]
     */
    var differenceWith = baseRest(function(array, values) {
      var comparator = last(values);
      if (isArrayLikeObject(comparator)) {
        comparator = undefined;
      }
      return isArrayLikeObject(array)
        ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true), undefined, comparator)
        : [];
    });

    /**
     * Creates a slice of `array` with `n` elements dropped from the beginning.
     *
     * @static
     * @memberOf _
     * @since 0.5.0
     * @category Array
     * @param {Array} array The array to query.
     * @param {number} [n=1] The number of elements to drop.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {Array} Returns the slice of `array`.
     * @example
     *
     * _.drop([1, 2, 3]);
     * // => [2, 3]
     *
     * _.drop([1, 2, 3], 2);
     * // => [3]
     *
     * _.drop([1, 2, 3], 5);
     * // => []
     *
     * _.drop([1, 2, 3], 0);
     * // => [1, 2, 3]
     */
    function drop(array, n, guard) {
      var length = array == null ? 0 : array.length;
      if (!length) {
        return [];
      }
      n = (guard || n === undefined) ? 1 : toInteger(n);
      return baseSlice(array, n < 0 ? 0 : n, length);
    }

    /**
     * Creates a slice of `array` with `n` elements dropped from the end.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Array
     * @param {Array} array The array to query.
     * @param {number} [n=1] The number of elements to drop.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {Array} Returns the slice of `array`.
     * @example
     *
     * _.dropRight([1, 2, 3]);
     * // => [1, 2]
     *
     * _.dropRight([1, 2, 3], 2);
     * // => [1]
     *
     * _.dropRight([1, 2, 3], 5);
     * // => []
     *
     * _.dropRight([1, 2, 3], 0);
     * // => [1, 2, 3]
     */
    function dropRight(array, n, guard) {
      var length = array == null ? 0 : array.length;
      if (!length) {
        return [];
      }
      n = (guard || n === undefined) ? 1 : toInteger(n);
      n = length - n;
      return baseSlice(array, 0, n < 0 ? 0 : n);
    }

    /**
     * Creates a slice of `array` excluding elements dropped from the end.
     * Elements are dropped until `predicate` returns falsey. The predicate is
     * invoked with three arguments: (value, index, array).
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Array
     * @param {Array} array The array to query.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @returns {Array} Returns the slice of `array`.
     * @example
     *
     * var users = [
     *   { 'user': 'barney',  'active': true },
     *   { 'user': 'fred',    'active': false },
     *   { 'user': 'pebbles', 'active': false }
     * ];
     *
     * _.dropRightWhile(users, function(o) { return !o.active; });
     * // => objects for ['barney']
     *
     * // The `_.matches` iteratee shorthand.
     * _.dropRightWhile(users, { 'user': 'pebbles', 'active': false });
     * // => objects for ['barney', 'fred']
     *
     * // The `_.matchesProperty` iteratee shorthand.
     * _.dropRightWhile(users, ['active', false]);
     * // => objects for ['barney']
     *
     * // The `_.property` iteratee shorthand.
     * _.dropRightWhile(users, 'active');
     * // => objects for ['barney', 'fred', 'pebbles']
     */
    function dropRightWhile(array, predicate) {
      return (array && array.length)
        ? baseWhile(array, getIteratee(predicate, 3), true, true)
        : [];
    }

    /**
     * Creates a slice of `array` excluding elements dropped from the beginning.
     * Elements are dropped until `predicate` returns falsey. The predicate is
     * invoked with three arguments: (value, index, array).
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Array
     * @param {Array} array The array to query.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @returns {Array} Returns the slice of `array`.
     * @example
     *
     * var users = [
     *   { 'user': 'barney',  'active': false },
     *   { 'user': 'fred',    'active': false },
     *   { 'user': 'pebbles', 'active': true }
     * ];
     *
     * _.dropWhile(users, function(o) { return !o.active; });
     * // => objects for ['pebbles']
     *
     * // The `_.matches` iteratee shorthand.
     * _.dropWhile(users, { 'user': 'barney', 'active': false });
     * // => objects for ['fred', 'pebbles']
     *
     * // The `_.matchesProperty` iteratee shorthand.
     * _.dropWhile(users, ['active', false]);
     * // => objects for ['pebbles']
     *
     * // The `_.property` iteratee shorthand.
     * _.dropWhile(users, 'active');
     * // => objects for ['barney', 'fred', 'pebbles']
     */
    function dropWhile(array, predicate) {
      return (array && array.length)
        ? baseWhile(array, getIteratee(predicate, 3), true)
        : [];
    }

    /**
     * Fills elements of `array` with `value` from `start` up to, but not
     * including, `end`.
     *
     * **Note:** This method mutates `array`.
     *
     * @static
     * @memberOf _
     * @since 3.2.0
     * @category Array
     * @param {Array} array The array to fill.
     * @param {*} value The value to fill `array` with.
     * @param {number} [start=0] The start position.
     * @param {number} [end=array.length] The end position.
     * @returns {Array} Returns `array`.
     * @example
     *
     * var array = [1, 2, 3];
     *
     * _.fill(array, 'a');
     * console.log(array);
     * // => ['a', 'a', 'a']
     *
     * _.fill(Array(3), 2);
     * // => [2, 2, 2]
     *
     * _.fill([4, 6, 8, 10], '*', 1, 3);
     * // => [4, '*', '*', 10]
     */
    function fill(array, value, start, end) {
      var length = array == null ? 0 : array.length;
      if (!length) {
        return [];
      }
      if (start && typeof start != 'number' && isIterateeCall(array, value, start)) {
        start = 0;
        end = length;
      }
      return baseFill(array, value, start, end);
    }

    /**
     * This method is like `_.find` except that it returns the index of the first
     * element `predicate` returns truthy for instead of the element itself.
     *
     * @static
     * @memberOf _
     * @since 1.1.0
     * @category Array
     * @param {Array} array The array to inspect.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @param {number} [fromIndex=0] The index to search from.
     * @returns {number} Returns the index of the found element, else `-1`.
     * @example
     *
     * var users = [
     *   { 'user': 'barney',  'active': false },
     *   { 'user': 'fred',    'active': false },
     *   { 'user': 'pebbles', 'active': true }
     * ];
     *
     * _.findIndex(users, function(o) { return o.user == 'barney'; });
     * // => 0
     *
     * // The `_.matches` iteratee shorthand.
     * _.findIndex(users, { 'user': 'fred', 'active': false });
     * // => 1
     *
     * // The `_.matchesProperty` iteratee shorthand.
     * _.findIndex(users, ['active', false]);
     * // => 0
     *
     * // The `_.property` iteratee shorthand.
     * _.findIndex(users, 'active');
     * // => 2
     */
    function findIndex(array, predicate, fromIndex) {
      var length = array == null ? 0 : array.length;
      if (!length) {
        return -1;
      }
      var index = fromIndex == null ? 0 : toInteger(fromIndex);
      if (index < 0) {
        index = nativeMax(length + index, 0);
      }
      return baseFindIndex(array, getIteratee(predicate, 3), index);
    }

    /**
     * This method is like `_.findIndex` except that it iterates over elements
     * of `collection` from right to left.
     *
     * @static
     * @memberOf _
     * @since 2.0.0
     * @category Array
     * @param {Array} array The array to inspect.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @param {number} [fromIndex=array.length-1] The index to search from.
     * @returns {number} Returns the index of the found element, else `-1`.
     * @example
     *
     * var users = [
     *   { 'user': 'barney',  'active': true },
     *   { 'user': 'fred',    'active': false },
     *   { 'user': 'pebbles', 'active': false }
     * ];
     *
     * _.findLastIndex(users, function(o) { return o.user == 'pebbles'; });
     * // => 2
     *
     * // The `_.matches` iteratee shorthand.
     * _.findLastIndex(users, { 'user': 'barney', 'active': true });
     * // => 0
     *
     * // The `_.matchesProperty` iteratee shorthand.
     * _.findLastIndex(users, ['active', false]);
     * // => 2
     *
     * // The `_.property` iteratee shorthand.
     * _.findLastIndex(users, 'active');
     * // => 0
     */
    function findLastIndex(array, predicate, fromIndex) {
      var length = array == null ? 0 : array.length;
      if (!length) {
        return -1;
      }
      var index = length - 1;
      if (fromIndex !== undefined) {
        index = toInteger(fromIndex);
        index = fromIndex < 0
          ? nativeMax(length + index, 0)
          : nativeMin(index, length - 1);
      }
      return baseFindIndex(array, getIteratee(predicate, 3), index, true);
    }

    /**
     * Flattens `array` a single level deep.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Array
     * @param {Array} array The array to flatten.
     * @returns {Array} Returns the new flattened array.
     * @example
     *
     * _.flatten([1, [2, [3, [4]], 5]]);
     * // => [1, 2, [3, [4]], 5]
     */
    function flatten(array) {
      var length = array == null ? 0 : array.length;
      return length ? baseFlatten(array, 1) : [];
    }

    /**
     * Recursively flattens `array`.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Array
     * @param {Array} array The array to flatten.
     * @returns {Array} Returns the new flattened array.
     * @example
     *
     * _.flattenDeep([1, [2, [3, [4]], 5]]);
     * // => [1, 2, 3, 4, 5]
     */
    function flattenDeep(array) {
      var length = array == null ? 0 : array.length;
      return length ? baseFlatten(array, INFINITY) : [];
    }

    /**
     * Recursively flatten `array` up to `depth` times.
     *
     * @static
     * @memberOf _
     * @since 4.4.0
     * @category Array
     * @param {Array} array The array to flatten.
     * @param {number} [depth=1] The maximum recursion depth.
     * @returns {Array} Returns the new flattened array.
     * @example
     *
     * var array = [1, [2, [3, [4]], 5]];
     *
     * _.flattenDepth(array, 1);
     * // => [1, 2, [3, [4]], 5]
     *
     * _.flattenDepth(array, 2);
     * // => [1, 2, 3, [4], 5]
     */
    function flattenDepth(array, depth) {
      var length = array == null ? 0 : array.length;
      if (!length) {
        return [];
      }
      depth = depth === undefined ? 1 : toInteger(depth);
      return baseFlatten(array, depth);
    }

    /**
     * The inverse of `_.toPairs`; this method returns an object composed
     * from key-value `pairs`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} pairs The key-value pairs.
     * @returns {Object} Returns the new object.
     * @example
     *
     * _.fromPairs([['a', 1], ['b', 2]]);
     * // => { 'a': 1, 'b': 2 }
     */
    function fromPairs(pairs) {
      var index = -1,
          length = pairs == null ? 0 : pairs.length,
          result = {};

      while (++index < length) {
        var pair = pairs[index];
        result[pair[0]] = pair[1];
      }
      return result;
    }

    /**
     * Gets the first element of `array`.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @alias first
     * @category Array
     * @param {Array} array The array to query.
     * @returns {*} Returns the first element of `array`.
     * @example
     *
     * _.head([1, 2, 3]);
     * // => 1
     *
     * _.head([]);
     * // => undefined
     */
    function head(array) {
      return (array && array.length) ? array[0] : undefined;
    }

    /**
     * Gets the index at which the first occurrence of `value` is found in `array`
     * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
     * for equality comparisons. If `fromIndex` is negative, it's used as the
     * offset from the end of `array`.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Array
     * @param {Array} array The array to inspect.
     * @param {*} value The value to search for.
     * @param {number} [fromIndex=0] The index to search from.
     * @returns {number} Returns the index of the matched value, else `-1`.
     * @example
     *
     * _.indexOf([1, 2, 1, 2], 2);
     * // => 1
     *
     * // Search from the `fromIndex`.
     * _.indexOf([1, 2, 1, 2], 2, 2);
     * // => 3
     */
    function indexOf(array, value, fromIndex) {
      var length = array == null ? 0 : array.length;
      if (!length) {
        return -1;
      }
      var index = fromIndex == null ? 0 : toInteger(fromIndex);
      if (index < 0) {
        index = nativeMax(length + index, 0);
      }
      return baseIndexOf(array, value, index);
    }

    /**
     * Gets all but the last element of `array`.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Array
     * @param {Array} array The array to query.
     * @returns {Array} Returns the slice of `array`.
     * @example
     *
     * _.initial([1, 2, 3]);
     * // => [1, 2]
     */
    function initial(array) {
      var length = array == null ? 0 : array.length;
      return length ? baseSlice(array, 0, -1) : [];
    }

    /**
     * Creates an array of unique values that are included in all given arrays
     * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
     * for equality comparisons. The order and references of result values are
     * determined by the first array.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Array
     * @param {...Array} [arrays] The arrays to inspect.
     * @returns {Array} Returns the new array of intersecting values.
     * @example
     *
     * _.intersection([2, 1], [2, 3]);
     * // => [2]
     */
    var intersection = baseRest(function(arrays) {
      var mapped = arrayMap(arrays, castArrayLikeObject);
      return (mapped.length && mapped[0] === arrays[0])
        ? baseIntersection(mapped)
        : [];
    });

    /**
     * This method is like `_.intersection` except that it accepts `iteratee`
     * which is invoked for each element of each `arrays` to generate the criterion
     * by which they're compared. The order and references of result values are
     * determined by the first array. The iteratee is invoked with one argument:
     * (value).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {...Array} [arrays] The arrays to inspect.
     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
     * @returns {Array} Returns the new array of intersecting values.
     * @example
     *
     * _.intersectionBy([2.1, 1.2], [2.3, 3.4], Math.floor);
     * // => [2.1]
     *
     * // The `_.property` iteratee shorthand.
     * _.intersectionBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');
     * // => [{ 'x': 1 }]
     */
    var intersectionBy = baseRest(function(arrays) {
      var iteratee = last(arrays),
          mapped = arrayMap(arrays, castArrayLikeObject);

      if (iteratee === last(mapped)) {
        iteratee = undefined;
      } else {
        mapped.pop();
      }
      return (mapped.length && mapped[0] === arrays[0])
        ? baseIntersection(mapped, getIteratee(iteratee, 2))
        : [];
    });

    /**
     * This method is like `_.intersection` except that it accepts `comparator`
     * which is invoked to compare elements of `arrays`. The order and references
     * of result values are determined by the first array. The comparator is
     * invoked with two arguments: (arrVal, othVal).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {...Array} [arrays] The arrays to inspect.
     * @param {Function} [comparator] The comparator invoked per element.
     * @returns {Array} Returns the new array of intersecting values.
     * @example
     *
     * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];
     * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];
     *
     * _.intersectionWith(objects, others, _.isEqual);
     * // => [{ 'x': 1, 'y': 2 }]
     */
    var intersectionWith = baseRest(function(arrays) {
      var comparator = last(arrays),
          mapped = arrayMap(arrays, castArrayLikeObject);

      comparator = typeof comparator == 'function' ? comparator : undefined;
      if (comparator) {
        mapped.pop();
      }
      return (mapped.length && mapped[0] === arrays[0])
        ? baseIntersection(mapped, undefined, comparator)
        : [];
    });

    /**
     * Converts all elements in `array` into a string separated by `separator`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The array to convert.
     * @param {string} [separator=','] The element separator.
     * @returns {string} Returns the joined string.
     * @example
     *
     * _.join(['a', 'b', 'c'], '~');
     * // => 'a~b~c'
     */
    function join(array, separator) {
      return array == null ? '' : nativeJoin.call(array, separator);
    }

    /**
     * Gets the last element of `array`.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Array
     * @param {Array} array The array to query.
     * @returns {*} Returns the last element of `array`.
     * @example
     *
     * _.last([1, 2, 3]);
     * // => 3
     */
    function last(array) {
      var length = array == null ? 0 : array.length;
      return length ? array[length - 1] : undefined;
    }

    /**
     * This method is like `_.indexOf` except that it iterates over elements of
     * `array` from right to left.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Array
     * @param {Array} array The array to inspect.
     * @param {*} value The value to search for.
     * @param {number} [fromIndex=array.length-1] The index to search from.
     * @returns {number} Returns the index of the matched value, else `-1`.
     * @example
     *
     * _.lastIndexOf([1, 2, 1, 2], 2);
     * // => 3
     *
     * // Search from the `fromIndex`.
     * _.lastIndexOf([1, 2, 1, 2], 2, 2);
     * // => 1
     */
    function lastIndexOf(array, value, fromIndex) {
      var length = array == null ? 0 : array.length;
      if (!length) {
        return -1;
      }
      var index = length;
      if (fromIndex !== undefined) {
        index = toInteger(fromIndex);
        index = index < 0 ? nativeMax(length + index, 0) : nativeMin(index, length - 1);
      }
      return value === value
        ? strictLastIndexOf(array, value, index)
        : baseFindIndex(array, baseIsNaN, index, true);
    }

    /**
     * Gets the element at index `n` of `array`. If `n` is negative, the nth
     * element from the end is returned.
     *
     * @static
     * @memberOf _
     * @since 4.11.0
     * @category Array
     * @param {Array} array The array to query.
     * @param {number} [n=0] The index of the element to return.
     * @returns {*} Returns the nth element of `array`.
     * @example
     *
     * var array = ['a', 'b', 'c', 'd'];
     *
     * _.nth(array, 1);
     * // => 'b'
     *
     * _.nth(array, -2);
     * // => 'c';
     */
    function nth(array, n) {
      return (array && array.length) ? baseNth(array, toInteger(n)) : undefined;
    }

    /**
     * Removes all given values from `array` using
     * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
     * for equality comparisons.
     *
     * **Note:** Unlike `_.without`, this method mutates `array`. Use `_.remove`
     * to remove elements from an array by predicate.
     *
     * @static
     * @memberOf _
     * @since 2.0.0
     * @category Array
     * @param {Array} array The array to modify.
     * @param {...*} [values] The values to remove.
     * @returns {Array} Returns `array`.
     * @example
     *
     * var array = ['a', 'b', 'c', 'a', 'b', 'c'];
     *
     * _.pull(array, 'a', 'c');
     * console.log(array);
     * // => ['b', 'b']
     */
    var pull = baseRest(pullAll);

    /**
     * This method is like `_.pull` except that it accepts an array of values to remove.
     *
     * **Note:** Unlike `_.difference`, this method mutates `array`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The array to modify.
     * @param {Array} values The values to remove.
     * @returns {Array} Returns `array`.
     * @example
     *
     * var array = ['a', 'b', 'c', 'a', 'b', 'c'];
     *
     * _.pullAll(array, ['a', 'c']);
     * console.log(array);
     * // => ['b', 'b']
     */
    function pullAll(array, values) {
      return (array && array.length && values && values.length)
        ? basePullAll(array, values)
        : array;
    }

    /**
     * This method is like `_.pullAll` except that it accepts `iteratee` which is
     * invoked for each element of `array` and `values` to generate the criterion
     * by which they're compared. The iteratee is invoked with one argument: (value).
     *
     * **Note:** Unlike `_.differenceBy`, this method mutates `array`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The array to modify.
     * @param {Array} values The values to remove.
     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
     * @returns {Array} Returns `array`.
     * @example
     *
     * var array = [{ 'x': 1 }, { 'x': 2 }, { 'x': 3 }, { 'x': 1 }];
     *
     * _.pullAllBy(array, [{ 'x': 1 }, { 'x': 3 }], 'x');
     * console.log(array);
     * // => [{ 'x': 2 }]
     */
    function pullAllBy(array, values, iteratee) {
      return (array && array.length && values && values.length)
        ? basePullAll(array, values, getIteratee(iteratee, 2))
        : array;
    }

    /**
     * This method is like `_.pullAll` except that it accepts `comparator` which
     * is invoked to compare elements of `array` to `values`. The comparator is
     * invoked with two arguments: (arrVal, othVal).
     *
     * **Note:** Unlike `_.differenceWith`, this method mutates `array`.
     *
     * @static
     * @memberOf _
     * @since 4.6.0
     * @category Array
     * @param {Array} array The array to modify.
     * @param {Array} values The values to remove.
     * @param {Function} [comparator] The comparator invoked per element.
     * @returns {Array} Returns `array`.
     * @example
     *
     * var array = [{ 'x': 1, 'y': 2 }, { 'x': 3, 'y': 4 }, { 'x': 5, 'y': 6 }];
     *
     * _.pullAllWith(array, [{ 'x': 3, 'y': 4 }], _.isEqual);
     * console.log(array);
     * // => [{ 'x': 1, 'y': 2 }, { 'x': 5, 'y': 6 }]
     */
    function pullAllWith(array, values, comparator) {
      return (array && array.length && values && values.length)
        ? basePullAll(array, values, undefined, comparator)
        : array;
    }

    /**
     * Removes elements from `array` corresponding to `indexes` and returns an
     * array of removed elements.
     *
     * **Note:** Unlike `_.at`, this method mutates `array`.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Array
     * @param {Array} array The array to modify.
     * @param {...(number|number[])} [indexes] The indexes of elements to remove.
     * @returns {Array} Returns the new array of removed elements.
     * @example
     *
     * var array = ['a', 'b', 'c', 'd'];
     * var pulled = _.pullAt(array, [1, 3]);
     *
     * console.log(array);
     * // => ['a', 'c']
     *
     * console.log(pulled);
     * // => ['b', 'd']
     */
    var pullAt = flatRest(function(array, indexes) {
      var length = array == null ? 0 : array.length,
          result = baseAt(array, indexes);

      basePullAt(array, arrayMap(indexes, function(index) {
        return isIndex(index, length) ? +index : index;
      }).sort(compareAscending));

      return result;
    });

    /**
     * Removes all elements from `array` that `predicate` returns truthy for
     * and returns an array of the removed elements. The predicate is invoked
     * with three arguments: (value, index, array).
     *
     * **Note:** Unlike `_.filter`, this method mutates `array`. Use `_.pull`
     * to pull elements from an array by value.
     *
     * @static
     * @memberOf _
     * @since 2.0.0
     * @category Array
     * @param {Array} array The array to modify.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @returns {Array} Returns the new array of removed elements.
     * @example
     *
     * var array = [1, 2, 3, 4];
     * var evens = _.remove(array, function(n) {
     *   return n % 2 == 0;
     * });
     *
     * console.log(array);
     * // => [1, 3]
     *
     * console.log(evens);
     * // => [2, 4]
     */
    function remove(array, predicate) {
      var result = [];
      if (!(array && array.length)) {
        return result;
      }
      var index = -1,
          indexes = [],
          length = array.length;

      predicate = getIteratee(predicate, 3);
      while (++index < length) {
        var value = array[index];
        if (predicate(value, index, array)) {
          result.push(value);
          indexes.push(index);
        }
      }
      basePullAt(array, indexes);
      return result;
    }

    /**
     * Reverses `array` so that the first element becomes the last, the second
     * element becomes the second to last, and so on.
     *
     * **Note:** This method mutates `array` and is based on
     * [`Array#reverse`](https://mdn.io/Array/reverse).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The array to modify.
     * @returns {Array} Returns `array`.
     * @example
     *
     * var array = [1, 2, 3];
     *
     * _.reverse(array);
     * // => [3, 2, 1]
     *
     * console.log(array);
     * // => [3, 2, 1]
     */
    function reverse(array) {
      return array == null ? array : nativeReverse.call(array);
    }

    /**
     * Creates a slice of `array` from `start` up to, but not including, `end`.
     *
     * **Note:** This method is used instead of
     * [`Array#slice`](https://mdn.io/Array/slice) to ensure dense arrays are
     * returned.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Array
     * @param {Array} array The array to slice.
     * @param {number} [start=0] The start position.
     * @param {number} [end=array.length] The end position.
     * @returns {Array} Returns the slice of `array`.
     */
    function slice(array, start, end) {
      var length = array == null ? 0 : array.length;
      if (!length) {
        return [];
      }
      if (end && typeof end != 'number' && isIterateeCall(array, start, end)) {
        start = 0;
        end = length;
      }
      else {
        start = start == null ? 0 : toInteger(start);
        end = end === undefined ? length : toInteger(end);
      }
      return baseSlice(array, start, end);
    }

    /**
     * Uses a binary search to determine the lowest index at which `value`
     * should be inserted into `array` in order to maintain its sort order.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Array
     * @param {Array} array The sorted array to inspect.
     * @param {*} value The value to evaluate.
     * @returns {number} Returns the index at which `value` should be inserted
     *  into `array`.
     * @example
     *
     * _.sortedIndex([30, 50], 40);
     * // => 1
     */
    function sortedIndex(array, value) {
      return baseSortedIndex(array, value);
    }

    /**
     * This method is like `_.sortedIndex` except that it accepts `iteratee`
     * which is invoked for `value` and each element of `array` to compute their
     * sort ranking. The iteratee is invoked with one argument: (value).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The sorted array to inspect.
     * @param {*} value The value to evaluate.
     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
     * @returns {number} Returns the index at which `value` should be inserted
     *  into `array`.
     * @example
     *
     * var objects = [{ 'x': 4 }, { 'x': 5 }];
     *
     * _.sortedIndexBy(objects, { 'x': 4 }, function(o) { return o.x; });
     * // => 0
     *
     * // The `_.property` iteratee shorthand.
     * _.sortedIndexBy(objects, { 'x': 4 }, 'x');
     * // => 0
     */
    function sortedIndexBy(array, value, iteratee) {
      return baseSortedIndexBy(array, value, getIteratee(iteratee, 2));
    }

    /**
     * This method is like `_.indexOf` except that it performs a binary
     * search on a sorted `array`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The array to inspect.
     * @param {*} value The value to search for.
     * @returns {number} Returns the index of the matched value, else `-1`.
     * @example
     *
     * _.sortedIndexOf([4, 5, 5, 5, 6], 5);
     * // => 1
     */
    function sortedIndexOf(array, value) {
      var length = array == null ? 0 : array.length;
      if (length) {
        var index = baseSortedIndex(array, value);
        if (index < length && eq(array[index], value)) {
          return index;
        }
      }
      return -1;
    }

    /**
     * This method is like `_.sortedIndex` except that it returns the highest
     * index at which `value` should be inserted into `array` in order to
     * maintain its sort order.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Array
     * @param {Array} array The sorted array to inspect.
     * @param {*} value The value to evaluate.
     * @returns {number} Returns the index at which `value` should be inserted
     *  into `array`.
     * @example
     *
     * _.sortedLastIndex([4, 5, 5, 5, 6], 5);
     * // => 4
     */
    function sortedLastIndex(array, value) {
      return baseSortedIndex(array, value, true);
    }

    /**
     * This method is like `_.sortedLastIndex` except that it accepts `iteratee`
     * which is invoked for `value` and each element of `array` to compute their
     * sort ranking. The iteratee is invoked with one argument: (value).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The sorted array to inspect.
     * @param {*} value The value to evaluate.
     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
     * @returns {number} Returns the index at which `value` should be inserted
     *  into `array`.
     * @example
     *
     * var objects = [{ 'x': 4 }, { 'x': 5 }];
     *
     * _.sortedLastIndexBy(objects, { 'x': 4 }, function(o) { return o.x; });
     * // => 1
     *
     * // The `_.property` iteratee shorthand.
     * _.sortedLastIndexBy(objects, { 'x': 4 }, 'x');
     * // => 1
     */
    function sortedLastIndexBy(array, value, iteratee) {
      return baseSortedIndexBy(array, value, getIteratee(iteratee, 2), true);
    }

    /**
     * This method is like `_.lastIndexOf` except that it performs a binary
     * search on a sorted `array`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The array to inspect.
     * @param {*} value The value to search for.
     * @returns {number} Returns the index of the matched value, else `-1`.
     * @example
     *
     * _.sortedLastIndexOf([4, 5, 5, 5, 6], 5);
     * // => 3
     */
    function sortedLastIndexOf(array, value) {
      var length = array == null ? 0 : array.length;
      if (length) {
        var index = baseSortedIndex(array, value, true) - 1;
        if (eq(array[index], value)) {
          return index;
        }
      }
      return -1;
    }

    /**
     * This method is like `_.uniq` except that it's designed and optimized
     * for sorted arrays.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The array to inspect.
     * @returns {Array} Returns the new duplicate free array.
     * @example
     *
     * _.sortedUniq([1, 1, 2]);
     * // => [1, 2]
     */
    function sortedUniq(array) {
      return (array && array.length)
        ? baseSortedUniq(array)
        : [];
    }

    /**
     * This method is like `_.uniqBy` except that it's designed and optimized
     * for sorted arrays.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The array to inspect.
     * @param {Function} [iteratee] The iteratee invoked per element.
     * @returns {Array} Returns the new duplicate free array.
     * @example
     *
     * _.sortedUniqBy([1.1, 1.2, 2.3, 2.4], Math.floor);
     * // => [1.1, 2.3]
     */
    function sortedUniqBy(array, iteratee) {
      return (array && array.length)
        ? baseSortedUniq(array, getIteratee(iteratee, 2))
        : [];
    }

    /**
     * Gets all but the first element of `array`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The array to query.
     * @returns {Array} Returns the slice of `array`.
     * @example
     *
     * _.tail([1, 2, 3]);
     * // => [2, 3]
     */
    function tail(array) {
      var length = array == null ? 0 : array.length;
      return length ? baseSlice(array, 1, length) : [];
    }

    /**
     * Creates a slice of `array` with `n` elements taken from the beginning.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Array
     * @param {Array} array The array to query.
     * @param {number} [n=1] The number of elements to take.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {Array} Returns the slice of `array`.
     * @example
     *
     * _.take([1, 2, 3]);
     * // => [1]
     *
     * _.take([1, 2, 3], 2);
     * // => [1, 2]
     *
     * _.take([1, 2, 3], 5);
     * // => [1, 2, 3]
     *
     * _.take([1, 2, 3], 0);
     * // => []
     */
    function take(array, n, guard) {
      if (!(array && array.length)) {
        return [];
      }
      n = (guard || n === undefined) ? 1 : toInteger(n);
      return baseSlice(array, 0, n < 0 ? 0 : n);
    }

    /**
     * Creates a slice of `array` with `n` elements taken from the end.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Array
     * @param {Array} array The array to query.
     * @param {number} [n=1] The number of elements to take.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {Array} Returns the slice of `array`.
     * @example
     *
     * _.takeRight([1, 2, 3]);
     * // => [3]
     *
     * _.takeRight([1, 2, 3], 2);
     * // => [2, 3]
     *
     * _.takeRight([1, 2, 3], 5);
     * // => [1, 2, 3]
     *
     * _.takeRight([1, 2, 3], 0);
     * // => []
     */
    function takeRight(array, n, guard) {
      var length = array == null ? 0 : array.length;
      if (!length) {
        return [];
      }
      n = (guard || n === undefined) ? 1 : toInteger(n);
      n = length - n;
      return baseSlice(array, n < 0 ? 0 : n, length);
    }

    /**
     * Creates a slice of `array` with elements taken from the end. Elements are
     * taken until `predicate` returns falsey. The predicate is invoked with
     * three arguments: (value, index, array).
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Array
     * @param {Array} array The array to query.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @returns {Array} Returns the slice of `array`.
     * @example
     *
     * var users = [
     *   { 'user': 'barney',  'active': true },
     *   { 'user': 'fred',    'active': false },
     *   { 'user': 'pebbles', 'active': false }
     * ];
     *
     * _.takeRightWhile(users, function(o) { return !o.active; });
     * // => objects for ['fred', 'pebbles']
     *
     * // The `_.matches` iteratee shorthand.
     * _.takeRightWhile(users, { 'user': 'pebbles', 'active': false });
     * // => objects for ['pebbles']
     *
     * // The `_.matchesProperty` iteratee shorthand.
     * _.takeRightWhile(users, ['active', false]);
     * // => objects for ['fred', 'pebbles']
     *
     * // The `_.property` iteratee shorthand.
     * _.takeRightWhile(users, 'active');
     * // => []
     */
    function takeRightWhile(array, predicate) {
      return (array && array.length)
        ? baseWhile(array, getIteratee(predicate, 3), false, true)
        : [];
    }

    /**
     * Creates a slice of `array` with elements taken from the beginning. Elements
     * are taken until `predicate` returns falsey. The predicate is invoked with
     * three arguments: (value, index, array).
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Array
     * @param {Array} array The array to query.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @returns {Array} Returns the slice of `array`.
     * @example
     *
     * var users = [
     *   { 'user': 'barney',  'active': false },
     *   { 'user': 'fred',    'active': false },
     *   { 'user': 'pebbles', 'active': true }
     * ];
     *
     * _.takeWhile(users, function(o) { return !o.active; });
     * // => objects for ['barney', 'fred']
     *
     * // The `_.matches` iteratee shorthand.
     * _.takeWhile(users, { 'user': 'barney', 'active': false });
     * // => objects for ['barney']
     *
     * // The `_.matchesProperty` iteratee shorthand.
     * _.takeWhile(users, ['active', false]);
     * // => objects for ['barney', 'fred']
     *
     * // The `_.property` iteratee shorthand.
     * _.takeWhile(users, 'active');
     * // => []
     */
    function takeWhile(array, predicate) {
      return (array && array.length)
        ? baseWhile(array, getIteratee(predicate, 3))
        : [];
    }

    /**
     * Creates an array of unique values, in order, from all given arrays using
     * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
     * for equality comparisons.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Array
     * @param {...Array} [arrays] The arrays to inspect.
     * @returns {Array} Returns the new array of combined values.
     * @example
     *
     * _.union([2], [1, 2]);
     * // => [2, 1]
     */
    var union = baseRest(function(arrays) {
      return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true));
    });

    /**
     * This method is like `_.union` except that it accepts `iteratee` which is
     * invoked for each element of each `arrays` to generate the criterion by
     * which uniqueness is computed. Result values are chosen from the first
     * array in which the value occurs. The iteratee is invoked with one argument:
     * (value).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {...Array} [arrays] The arrays to inspect.
     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
     * @returns {Array} Returns the new array of combined values.
     * @example
     *
     * _.unionBy([2.1], [1.2, 2.3], Math.floor);
     * // => [2.1, 1.2]
     *
     * // The `_.property` iteratee shorthand.
     * _.unionBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');
     * // => [{ 'x': 1 }, { 'x': 2 }]
     */
    var unionBy = baseRest(function(arrays) {
      var iteratee = last(arrays);
      if (isArrayLikeObject(iteratee)) {
        iteratee = undefined;
      }
      return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true), getIteratee(iteratee, 2));
    });

    /**
     * This method is like `_.union` except that it accepts `comparator` which
     * is invoked to compare elements of `arrays`. Result values are chosen from
     * the first array in which the value occurs. The comparator is invoked
     * with two arguments: (arrVal, othVal).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {...Array} [arrays] The arrays to inspect.
     * @param {Function} [comparator] The comparator invoked per element.
     * @returns {Array} Returns the new array of combined values.
     * @example
     *
     * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];
     * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];
     *
     * _.unionWith(objects, others, _.isEqual);
     * // => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 1 }]
     */
    var unionWith = baseRest(function(arrays) {
      var comparator = last(arrays);
      comparator = typeof comparator == 'function' ? comparator : undefined;
      return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true), undefined, comparator);
    });

    /**
     * Creates a duplicate-free version of an array, using
     * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
     * for equality comparisons, in which only the first occurrence of each element
     * is kept. The order of result values is determined by the order they occur
     * in the array.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Array
     * @param {Array} array The array to inspect.
     * @returns {Array} Returns the new duplicate free array.
     * @example
     *
     * _.uniq([2, 1, 2]);
     * // => [2, 1]
     */
    function uniq(array) {
      return (array && array.length) ? baseUniq(array) : [];
    }

    /**
     * This method is like `_.uniq` except that it accepts `iteratee` which is
     * invoked for each element in `array` to generate the criterion by which
     * uniqueness is computed. The order of result values is determined by the
     * order they occur in the array. The iteratee is invoked with one argument:
     * (value).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The array to inspect.
     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
     * @returns {Array} Returns the new duplicate free array.
     * @example
     *
     * _.uniqBy([2.1, 1.2, 2.3], Math.floor);
     * // => [2.1, 1.2]
     *
     * // The `_.property` iteratee shorthand.
     * _.uniqBy([{ 'x': 1 }, { 'x': 2 }, { 'x': 1 }], 'x');
     * // => [{ 'x': 1 }, { 'x': 2 }]
     */
    function uniqBy(array, iteratee) {
      return (array && array.length) ? baseUniq(array, getIteratee(iteratee, 2)) : [];
    }

    /**
     * This method is like `_.uniq` except that it accepts `comparator` which
     * is invoked to compare elements of `array`. The order of result values is
     * determined by the order they occur in the array.The comparator is invoked
     * with two arguments: (arrVal, othVal).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The array to inspect.
     * @param {Function} [comparator] The comparator invoked per element.
     * @returns {Array} Returns the new duplicate free array.
     * @example
     *
     * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 2 }];
     *
     * _.uniqWith(objects, _.isEqual);
     * // => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }]
     */
    function uniqWith(array, comparator) {
      comparator = typeof comparator == 'function' ? comparator : undefined;
      return (array && array.length) ? baseUniq(array, undefined, comparator) : [];
    }

    /**
     * This method is like `_.zip` except that it accepts an array of grouped
     * elements and creates an array regrouping the elements to their pre-zip
     * configuration.
     *
     * @static
     * @memberOf _
     * @since 1.2.0
     * @category Array
     * @param {Array} array The array of grouped elements to process.
     * @returns {Array} Returns the new array of regrouped elements.
     * @example
     *
     * var zipped = _.zip(['a', 'b'], [1, 2], [true, false]);
     * // => [['a', 1, true], ['b', 2, false]]
     *
     * _.unzip(zipped);
     * // => [['a', 'b'], [1, 2], [true, false]]
     */
    function unzip(array) {
      if (!(array && array.length)) {
        return [];
      }
      var length = 0;
      array = arrayFilter(array, function(group) {
        if (isArrayLikeObject(group)) {
          length = nativeMax(group.length, length);
          return true;
        }
      });
      return baseTimes(length, function(index) {
        return arrayMap(array, baseProperty(index));
      });
    }

    /**
     * This method is like `_.unzip` except that it accepts `iteratee` to specify
     * how regrouped values should be combined. The iteratee is invoked with the
     * elements of each group: (...group).
     *
     * @static
     * @memberOf _
     * @since 3.8.0
     * @category Array
     * @param {Array} array The array of grouped elements to process.
     * @param {Function} [iteratee=_.identity] The function to combine
     *  regrouped values.
     * @returns {Array} Returns the new array of regrouped elements.
     * @example
     *
     * var zipped = _.zip([1, 2], [10, 20], [100, 200]);
     * // => [[1, 10, 100], [2, 20, 200]]
     *
     * _.unzipWith(zipped, _.add);
     * // => [3, 30, 300]
     */
    function unzipWith(array, iteratee) {
      if (!(array && array.length)) {
        return [];
      }
      var result = unzip(array);
      if (iteratee == null) {
        return result;
      }
      return arrayMap(result, function(group) {
        return apply(iteratee, undefined, group);
      });
    }

    /**
     * Creates an array excluding all given values using
     * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
     * for equality comparisons.
     *
     * **Note:** Unlike `_.pull`, this method returns a new array.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Array
     * @param {Array} array The array to inspect.
     * @param {...*} [values] The values to exclude.
     * @returns {Array} Returns the new array of filtered values.
     * @see _.difference, _.xor
     * @example
     *
     * _.without([2, 1, 2, 3], 1, 2);
     * // => [3]
     */
    var without = baseRest(function(array, values) {
      return isArrayLikeObject(array)
        ? baseDifference(array, values)
        : [];
    });

    /**
     * Creates an array of unique values that is the
     * [symmetric difference](https://en.wikipedia.org/wiki/Symmetric_difference)
     * of the given arrays. The order of result values is determined by the order
     * they occur in the arrays.
     *
     * @static
     * @memberOf _
     * @since 2.4.0
     * @category Array
     * @param {...Array} [arrays] The arrays to inspect.
     * @returns {Array} Returns the new array of filtered values.
     * @see _.difference, _.without
     * @example
     *
     * _.xor([2, 1], [2, 3]);
     * // => [1, 3]
     */
    var xor = baseRest(function(arrays) {
      return baseXor(arrayFilter(arrays, isArrayLikeObject));
    });

    /**
     * This method is like `_.xor` except that it accepts `iteratee` which is
     * invoked for each element of each `arrays` to generate the criterion by
     * which by which they're compared. The order of result values is determined
     * by the order they occur in the arrays. The iteratee is invoked with one
     * argument: (value).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {...Array} [arrays] The arrays to inspect.
     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
     * @returns {Array} Returns the new array of filtered values.
     * @example
     *
     * _.xorBy([2.1, 1.2], [2.3, 3.4], Math.floor);
     * // => [1.2, 3.4]
     *
     * // The `_.property` iteratee shorthand.
     * _.xorBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');
     * // => [{ 'x': 2 }]
     */
    var xorBy = baseRest(function(arrays) {
      var iteratee = last(arrays);
      if (isArrayLikeObject(iteratee)) {
        iteratee = undefined;
      }
      return baseXor(arrayFilter(arrays, isArrayLikeObject), getIteratee(iteratee, 2));
    });

    /**
     * This method is like `_.xor` except that it accepts `comparator` which is
     * invoked to compare elements of `arrays`. The order of result values is
     * determined by the order they occur in the arrays. The comparator is invoked
     * with two arguments: (arrVal, othVal).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {...Array} [arrays] The arrays to inspect.
     * @param {Function} [comparator] The comparator invoked per element.
     * @returns {Array} Returns the new array of filtered values.
     * @example
     *
     * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];
     * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];
     *
     * _.xorWith(objects, others, _.isEqual);
     * // => [{ 'x': 2, 'y': 1 }, { 'x': 1, 'y': 1 }]
     */
    var xorWith = baseRest(function(arrays) {
      var comparator = last(arrays);
      comparator = typeof comparator == 'function' ? comparator : undefined;
      return baseXor(arrayFilter(arrays, isArrayLikeObject), undefined, comparator);
    });

    /**
     * Creates an array of grouped elements, the first of which contains the
     * first elements of the given arrays, the second of which contains the
     * second elements of the given arrays, and so on.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Array
     * @param {...Array} [arrays] The arrays to process.
     * @returns {Array} Returns the new array of grouped elements.
     * @example
     *
     * _.zip(['a', 'b'], [1, 2], [true, false]);
     * // => [['a', 1, true], ['b', 2, false]]
     */
    var zip = baseRest(unzip);

    /**
     * This method is like `_.fromPairs` except that it accepts two arrays,
     * one of property identifiers and one of corresponding values.
     *
     * @static
     * @memberOf _
     * @since 0.4.0
     * @category Array
     * @param {Array} [props=[]] The property identifiers.
     * @param {Array} [values=[]] The property values.
     * @returns {Object} Returns the new object.
     * @example
     *
     * _.zipObject(['a', 'b'], [1, 2]);
     * // => { 'a': 1, 'b': 2 }
     */
    function zipObject(props, values) {
      return baseZipObject(props || [], values || [], assignValue);
    }

    /**
     * This method is like `_.zipObject` except that it supports property paths.
     *
     * @static
     * @memberOf _
     * @since 4.1.0
     * @category Array
     * @param {Array} [props=[]] The property identifiers.
     * @param {Array} [values=[]] The property values.
     * @returns {Object} Returns the new object.
     * @example
     *
     * _.zipObjectDeep(['a.b[0].c', 'a.b[1].d'], [1, 2]);
     * // => { 'a': { 'b': [{ 'c': 1 }, { 'd': 2 }] } }
     */
    function zipObjectDeep(props, values) {
      return baseZipObject(props || [], values || [], baseSet);
    }

    /**
     * This method is like `_.zip` except that it accepts `iteratee` to specify
     * how grouped values should be combined. The iteratee is invoked with the
     * elements of each group: (...group).
     *
     * @static
     * @memberOf _
     * @since 3.8.0
     * @category Array
     * @param {...Array} [arrays] The arrays to process.
     * @param {Function} [iteratee=_.identity] The function to combine
     *  grouped values.
     * @returns {Array} Returns the new array of grouped elements.
     * @example
     *
     * _.zipWith([1, 2], [10, 20], [100, 200], function(a, b, c) {
     *   return a + b + c;
     * });
     * // => [111, 222]
     */
    var zipWith = baseRest(function(arrays) {
      var length = arrays.length,
          iteratee = length > 1 ? arrays[length - 1] : undefined;

      iteratee = typeof iteratee == 'function' ? (arrays.pop(), iteratee) : undefined;
      return unzipWith(arrays, iteratee);
    });

    /*------------------------------------------------------------------------*/

    /**
     * Creates a `lodash` wrapper instance that wraps `value` with explicit method
     * chain sequences enabled. The result of such sequences must be unwrapped
     * with `_#value`.
     *
     * @static
     * @memberOf _
     * @since 1.3.0
     * @category Seq
     * @param {*} value The value to wrap.
     * @returns {Object} Returns the new `lodash` wrapper instance.
     * @example
     *
     * var users = [
     *   { 'user': 'barney',  'age': 36 },
     *   { 'user': 'fred',    'age': 40 },
     *   { 'user': 'pebbles', 'age': 1 }
     * ];
     *
     * var youngest = _
     *   .chain(users)
     *   .sortBy('age')
     *   .map(function(o) {
     *     return o.user + ' is ' + o.age;
     *   })
     *   .head()
     *   .value();
     * // => 'pebbles is 1'
     */
    function chain(value) {
      var result = lodash(value);
      result.__chain__ = true;
      return result;
    }

    /**
     * This method invokes `interceptor` and returns `value`. The interceptor
     * is invoked with one argument; (value). The purpose of this method is to
     * "tap into" a method chain sequence in order to modify intermediate results.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Seq
     * @param {*} value The value to provide to `interceptor`.
     * @param {Function} interceptor The function to invoke.
     * @returns {*} Returns `value`.
     * @example
     *
     * _([1, 2, 3])
     *  .tap(function(array) {
     *    // Mutate input array.
     *    array.pop();
     *  })
     *  .reverse()
     *  .value();
     * // => [2, 1]
     */
    function tap(value, interceptor) {
      interceptor(value);
      return value;
    }

    /**
     * This method is like `_.tap` except that it returns the result of `interceptor`.
     * The purpose of this method is to "pass thru" values replacing intermediate
     * results in a method chain sequence.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Seq
     * @param {*} value The value to provide to `interceptor`.
     * @param {Function} interceptor The function to invoke.
     * @returns {*} Returns the result of `interceptor`.
     * @example
     *
     * _('  abc  ')
     *  .chain()
     *  .trim()
     *  .thru(function(value) {
     *    return [value];
     *  })
     *  .value();
     * // => ['abc']
     */
    function thru(value, interceptor) {
      return interceptor(value);
    }

    /**
     * This method is the wrapper version of `_.at`.
     *
     * @name at
     * @memberOf _
     * @since 1.0.0
     * @category Seq
     * @param {...(string|string[])} [paths] The property paths to pick.
     * @returns {Object} Returns the new `lodash` wrapper instance.
     * @example
     *
     * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] };
     *
     * _(object).at(['a[0].b.c', 'a[1]']).value();
     * // => [3, 4]
     */
    var wrapperAt = flatRest(function(paths) {
      var length = paths.length,
          start = length ? paths[0] : 0,
          value = this.__wrapped__,
          interceptor = function(object) { return baseAt(object, paths); };

      if (length > 1 || this.__actions__.length ||
          !(value instanceof LazyWrapper) || !isIndex(start)) {
        return this.thru(interceptor);
      }
      value = value.slice(start, +start + (length ? 1 : 0));
      value.__actions__.push({
        'func': thru,
        'args': [interceptor],
        'thisArg': undefined
      });
      return new LodashWrapper(value, this.__chain__).thru(function(array) {
        if (length && !array.length) {
          array.push(undefined);
        }
        return array;
      });
    });

    /**
     * Creates a `lodash` wrapper instance with explicit method chain sequences enabled.
     *
     * @name chain
     * @memberOf _
     * @since 0.1.0
     * @category Seq
     * @returns {Object} Returns the new `lodash` wrapper instance.
     * @example
     *
     * var users = [
     *   { 'user': 'barney', 'age': 36 },
     *   { 'user': 'fred',   'age': 40 }
     * ];
     *
     * // A sequence without explicit chaining.
     * _(users).head();
     * // => { 'user': 'barney', 'age': 36 }
     *
     * // A sequence with explicit chaining.
     * _(users)
     *   .chain()
     *   .head()
     *   .pick('user')
     *   .value();
     * // => { 'user': 'barney' }
     */
    function wrapperChain() {
      return chain(this);
    }

    /**
     * Executes the chain sequence and returns the wrapped result.
     *
     * @name commit
     * @memberOf _
     * @since 3.2.0
     * @category Seq
     * @returns {Object} Returns the new `lodash` wrapper instance.
     * @example
     *
     * var array = [1, 2];
     * var wrapped = _(array).push(3);
     *
     * console.log(array);
     * // => [1, 2]
     *
     * wrapped = wrapped.commit();
     * console.log(array);
     * // => [1, 2, 3]
     *
     * wrapped.last();
     * // => 3
     *
     * console.log(array);
     * // => [1, 2, 3]
     */
    function wrapperCommit() {
      return new LodashWrapper(this.value(), this.__chain__);
    }

    /**
     * Gets the next value on a wrapped object following the
     * [iterator protocol](https://mdn.io/iteration_protocols#iterator).
     *
     * @name next
     * @memberOf _
     * @since 4.0.0
     * @category Seq
     * @returns {Object} Returns the next iterator value.
     * @example
     *
     * var wrapped = _([1, 2]);
     *
     * wrapped.next();
     * // => { 'done': false, 'value': 1 }
     *
     * wrapped.next();
     * // => { 'done': false, 'value': 2 }
     *
     * wrapped.next();
     * // => { 'done': true, 'value': undefined }
     */
    function wrapperNext() {
      if (this.__values__ === undefined) {
        this.__values__ = toArray(this.value());
      }
      var done = this.__index__ >= this.__values__.length,
          value = done ? undefined : this.__values__[this.__index__++];

      return { 'done': done, 'value': value };
    }

    /**
     * Enables the wrapper to be iterable.
     *
     * @name Symbol.iterator
     * @memberOf _
     * @since 4.0.0
     * @category Seq
     * @returns {Object} Returns the wrapper object.
     * @example
     *
     * var wrapped = _([1, 2]);
     *
     * wrapped[Symbol.iterator]() === wrapped;
     * // => true
     *
     * Array.from(wrapped);
     * // => [1, 2]
     */
    function wrapperToIterator() {
      return this;
    }

    /**
     * Creates a clone of the chain sequence planting `value` as the wrapped value.
     *
     * @name plant
     * @memberOf _
     * @since 3.2.0
     * @category Seq
     * @param {*} value The value to plant.
     * @returns {Object} Returns the new `lodash` wrapper instance.
     * @example
     *
     * function square(n) {
     *   return n * n;
     * }
     *
     * var wrapped = _([1, 2]).map(square);
     * var other = wrapped.plant([3, 4]);
     *
     * other.value();
     * // => [9, 16]
     *
     * wrapped.value();
     * // => [1, 4]
     */
    function wrapperPlant(value) {
      var result,
          parent = this;

      while (parent instanceof baseLodash) {
        var clone = wrapperClone(parent);
        clone.__index__ = 0;
        clone.__values__ = undefined;
        if (result) {
          previous.__wrapped__ = clone;
        } else {
          result = clone;
        }
        var previous = clone;
        parent = parent.__wrapped__;
      }
      previous.__wrapped__ = value;
      return result;
    }

    /**
     * This method is the wrapper version of `_.reverse`.
     *
     * **Note:** This method mutates the wrapped array.
     *
     * @name reverse
     * @memberOf _
     * @since 0.1.0
     * @category Seq
     * @returns {Object} Returns the new `lodash` wrapper instance.
     * @example
     *
     * var array = [1, 2, 3];
     *
     * _(array).reverse().value()
     * // => [3, 2, 1]
     *
     * console.log(array);
     * // => [3, 2, 1]
     */
    function wrapperReverse() {
      var value = this.__wrapped__;
      if (value instanceof LazyWrapper) {
        var wrapped = value;
        if (this.__actions__.length) {
          wrapped = new LazyWrapper(this);
        }
        wrapped = wrapped.reverse();
        wrapped.__actions__.push({
          'func': thru,
          'args': [reverse],
          'thisArg': undefined
        });
        return new LodashWrapper(wrapped, this.__chain__);
      }
      return this.thru(reverse);
    }

    /**
     * Executes the chain sequence to resolve the unwrapped value.
     *
     * @name value
     * @memberOf _
     * @since 0.1.0
     * @alias toJSON, valueOf
     * @category Seq
     * @returns {*} Returns the resolved unwrapped value.
     * @example
     *
     * _([1, 2, 3]).value();
     * // => [1, 2, 3]
     */
    function wrapperValue() {
      return baseWrapperValue(this.__wrapped__, this.__actions__);
    }

    /*------------------------------------------------------------------------*/

    /**
     * Creates an object composed of keys generated from the results of running
     * each element of `collection` thru `iteratee`. The corresponding value of
     * each key is the number of times the key was returned by `iteratee`. The
     * iteratee is invoked with one argument: (value).
     *
     * @static
     * @memberOf _
     * @since 0.5.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [iteratee=_.identity] The iteratee to transform keys.
     * @returns {Object} Returns the composed aggregate object.
     * @example
     *
     * _.countBy([6.1, 4.2, 6.3], Math.floor);
     * // => { '4': 1, '6': 2 }
     *
     * // The `_.property` iteratee shorthand.
     * _.countBy(['one', 'two', 'three'], 'length');
     * // => { '3': 2, '5': 1 }
     */
    var countBy = createAggregator(function(result, value, key) {
      if (hasOwnProperty.call(result, key)) {
        ++result[key];
      } else {
        baseAssignValue(result, key, 1);
      }
    });

    /**
     * Checks if `predicate` returns truthy for **all** elements of `collection`.
     * Iteration is stopped once `predicate` returns falsey. The predicate is
     * invoked with three arguments: (value, index|key, collection).
     *
     * **Note:** This method returns `true` for
     * [empty collections](https://en.wikipedia.org/wiki/Empty_set) because
     * [everything is true](https://en.wikipedia.org/wiki/Vacuous_truth) of
     * elements of empty collections.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {boolean} Returns `true` if all elements pass the predicate check,
     *  else `false`.
     * @example
     *
     * _.every([true, 1, null, 'yes'], Boolean);
     * // => false
     *
     * var users = [
     *   { 'user': 'barney', 'age': 36, 'active': false },
     *   { 'user': 'fred',   'age': 40, 'active': false }
     * ];
     *
     * // The `_.matches` iteratee shorthand.
     * _.every(users, { 'user': 'barney', 'active': false });
     * // => false
     *
     * // The `_.matchesProperty` iteratee shorthand.
     * _.every(users, ['active', false]);
     * // => true
     *
     * // The `_.property` iteratee shorthand.
     * _.every(users, 'active');
     * // => false
     */
    function every(collection, predicate, guard) {
      var func = isArray(collection) ? arrayEvery : baseEvery;
      if (guard && isIterateeCall(collection, predicate, guard)) {
        predicate = undefined;
      }
      return func(collection, getIteratee(predicate, 3));
    }

    /**
     * Iterates over elements of `collection`, returning an array of all elements
     * `predicate` returns truthy for. The predicate is invoked with three
     * arguments: (value, index|key, collection).
     *
     * **Note:** Unlike `_.remove`, this method returns a new array.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @returns {Array} Returns the new filtered array.
     * @see _.reject
     * @example
     *
     * var users = [
     *   { 'user': 'barney', 'age': 36, 'active': true },
     *   { 'user': 'fred',   'age': 40, 'active': false }
     * ];
     *
     * _.filter(users, function(o) { return !o.active; });
     * // => objects for ['fred']
     *
     * // The `_.matches` iteratee shorthand.
     * _.filter(users, { 'age': 36, 'active': true });
     * // => objects for ['barney']
     *
     * // The `_.matchesProperty` iteratee shorthand.
     * _.filter(users, ['active', false]);
     * // => objects for ['fred']
     *
     * // The `_.property` iteratee shorthand.
     * _.filter(users, 'active');
     * // => objects for ['barney']
     */
    function filter(collection, predicate) {
      var func = isArray(collection) ? arrayFilter : baseFilter;
      return func(collection, getIteratee(predicate, 3));
    }

    /**
     * Iterates over elements of `collection`, returning the first element
     * `predicate` returns truthy for. The predicate is invoked with three
     * arguments: (value, index|key, collection).
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Collection
     * @param {Array|Object} collection The collection to inspect.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @param {number} [fromIndex=0] The index to search from.
     * @returns {*} Returns the matched element, else `undefined`.
     * @example
     *
     * var users = [
     *   { 'user': 'barney',  'age': 36, 'active': true },
     *   { 'user': 'fred',    'age': 40, 'active': false },
     *   { 'user': 'pebbles', 'age': 1,  'active': true }
     * ];
     *
     * _.find(users, function(o) { return o.age < 40; });
     * // => object for 'barney'
     *
     * // The `_.matches` iteratee shorthand.
     * _.find(users, { 'age': 1, 'active': true });
     * // => object for 'pebbles'
     *
     * // The `_.matchesProperty` iteratee shorthand.
     * _.find(users, ['active', false]);
     * // => object for 'fred'
     *
     * // The `_.property` iteratee shorthand.
     * _.find(users, 'active');
     * // => object for 'barney'
     */
    var find = createFind(findIndex);

    /**
     * This method is like `_.find` except that it iterates over elements of
     * `collection` from right to left.
     *
     * @static
     * @memberOf _
     * @since 2.0.0
     * @category Collection
     * @param {Array|Object} collection The collection to inspect.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @param {number} [fromIndex=collection.length-1] The index to search from.
     * @returns {*} Returns the matched element, else `undefined`.
     * @example
     *
     * _.findLast([1, 2, 3, 4], function(n) {
     *   return n % 2 == 1;
     * });
     * // => 3
     */
    var findLast = createFind(findLastIndex);

    /**
     * Creates a flattened array of values by running each element in `collection`
     * thru `iteratee` and flattening the mapped results. The iteratee is invoked
     * with three arguments: (value, index|key, collection).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @returns {Array} Returns the new flattened array.
     * @example
     *
     * function duplicate(n) {
     *   return [n, n];
     * }
     *
     * _.flatMap([1, 2], duplicate);
     * // => [1, 1, 2, 2]
     */
    function flatMap(collection, iteratee) {
      return baseFlatten(map(collection, iteratee), 1);
    }

    /**
     * This method is like `_.flatMap` except that it recursively flattens the
     * mapped results.
     *
     * @static
     * @memberOf _
     * @since 4.7.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @returns {Array} Returns the new flattened array.
     * @example
     *
     * function duplicate(n) {
     *   return [[[n, n]]];
     * }
     *
     * _.flatMapDeep([1, 2], duplicate);
     * // => [1, 1, 2, 2]
     */
    function flatMapDeep(collection, iteratee) {
      return baseFlatten(map(collection, iteratee), INFINITY);
    }

    /**
     * This method is like `_.flatMap` except that it recursively flattens the
     * mapped results up to `depth` times.
     *
     * @static
     * @memberOf _
     * @since 4.7.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @param {number} [depth=1] The maximum recursion depth.
     * @returns {Array} Returns the new flattened array.
     * @example
     *
     * function duplicate(n) {
     *   return [[[n, n]]];
     * }
     *
     * _.flatMapDepth([1, 2], duplicate, 2);
     * // => [[1, 1], [2, 2]]
     */
    function flatMapDepth(collection, iteratee, depth) {
      depth = depth === undefined ? 1 : toInteger(depth);
      return baseFlatten(map(collection, iteratee), depth);
    }

    /**
     * Iterates over elements of `collection` and invokes `iteratee` for each element.
     * The iteratee is invoked with three arguments: (value, index|key, collection).
     * Iteratee functions may exit iteration early by explicitly returning `false`.
     *
     * **Note:** As with other "Collections" methods, objects with a "length"
     * property are iterated like arrays. To avoid this behavior use `_.forIn`
     * or `_.forOwn` for object iteration.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @alias each
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @returns {Array|Object} Returns `collection`.
     * @see _.forEachRight
     * @example
     *
     * _.forEach([1, 2], function(value) {
     *   console.log(value);
     * });
     * // => Logs `1` then `2`.
     *
     * _.forEach({ 'a': 1, 'b': 2 }, function(value, key) {
     *   console.log(key);
     * });
     * // => Logs 'a' then 'b' (iteration order is not guaranteed).
     */
    function forEach(collection, iteratee) {
      var func = isArray(collection) ? arrayEach : baseEach;
      return func(collection, getIteratee(iteratee, 3));
    }

    /**
     * This method is like `_.forEach` except that it iterates over elements of
     * `collection` from right to left.
     *
     * @static
     * @memberOf _
     * @since 2.0.0
     * @alias eachRight
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @returns {Array|Object} Returns `collection`.
     * @see _.forEach
     * @example
     *
     * _.forEachRight([1, 2], function(value) {
     *   console.log(value);
     * });
     * // => Logs `2` then `1`.
     */
    function forEachRight(collection, iteratee) {
      var func = isArray(collection) ? arrayEachRight : baseEachRight;
      return func(collection, getIteratee(iteratee, 3));
    }

    /**
     * Creates an object composed of keys generated from the results of running
     * each element of `collection` thru `iteratee`. The order of grouped values
     * is determined by the order they occur in `collection`. The corresponding
     * value of each key is an array of elements responsible for generating the
     * key. The iteratee is invoked with one argument: (value).
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [iteratee=_.identity] The iteratee to transform keys.
     * @returns {Object} Returns the composed aggregate object.
     * @example
     *
     * _.groupBy([6.1, 4.2, 6.3], Math.floor);
     * // => { '4': [4.2], '6': [6.1, 6.3] }
     *
     * // The `_.property` iteratee shorthand.
     * _.groupBy(['one', 'two', 'three'], 'length');
     * // => { '3': ['one', 'two'], '5': ['three'] }
     */
    var groupBy = createAggregator(function(result, value, key) {
      if (hasOwnProperty.call(result, key)) {
        result[key].push(value);
      } else {
        baseAssignValue(result, key, [value]);
      }
    });

    /**
     * Checks if `value` is in `collection`. If `collection` is a string, it's
     * checked for a substring of `value`, otherwise
     * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
     * is used for equality comparisons. If `fromIndex` is negative, it's used as
     * the offset from the end of `collection`.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Collection
     * @param {Array|Object|string} collection The collection to inspect.
     * @param {*} value The value to search for.
     * @param {number} [fromIndex=0] The index to search from.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`.
     * @returns {boolean} Returns `true` if `value` is found, else `false`.
     * @example
     *
     * _.includes([1, 2, 3], 1);
     * // => true
     *
     * _.includes([1, 2, 3], 1, 2);
     * // => false
     *
     * _.includes({ 'a': 1, 'b': 2 }, 1);
     * // => true
     *
     * _.includes('abcd', 'bc');
     * // => true
     */
    function includes(collection, value, fromIndex, guard) {
      collection = isArrayLike(collection) ? collection : values(collection);
      fromIndex = (fromIndex && !guard) ? toInteger(fromIndex) : 0;

      var length = collection.length;
      if (fromIndex < 0) {
        fromIndex = nativeMax(length + fromIndex, 0);
      }
      return isString(collection)
        ? (fromIndex <= length && collection.indexOf(value, fromIndex) > -1)
        : (!!length && baseIndexOf(collection, value, fromIndex) > -1);
    }

    /**
     * Invokes the method at `path` of each element in `collection`, returning
     * an array of the results of each invoked method. Any additional arguments
     * are provided to each invoked method. If `path` is a function, it's invoked
     * for, and `this` bound to, each element in `collection`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Array|Function|string} path The path of the method to invoke or
     *  the function invoked per iteration.
     * @param {...*} [args] The arguments to invoke each method with.
     * @returns {Array} Returns the array of results.
     * @example
     *
     * _.invokeMap([[5, 1, 7], [3, 2, 1]], 'sort');
     * // => [[1, 5, 7], [1, 2, 3]]
     *
     * _.invokeMap([123, 456], String.prototype.split, '');
     * // => [['1', '2', '3'], ['4', '5', '6']]
     */
    var invokeMap = baseRest(function(collection, path, args) {
      var index = -1,
          isFunc = typeof path == 'function',
          result = isArrayLike(collection) ? Array(collection.length) : [];

      baseEach(collection, function(value) {
        result[++index] = isFunc ? apply(path, value, args) : baseInvoke(value, path, args);
      });
      return result;
    });

    /**
     * Creates an object composed of keys generated from the results of running
     * each element of `collection` thru `iteratee`. The corresponding value of
     * each key is the last element responsible for generating the key. The
     * iteratee is invoked with one argument: (value).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [iteratee=_.identity] The iteratee to transform keys.
     * @returns {Object} Returns the composed aggregate object.
     * @example
     *
     * var array = [
     *   { 'dir': 'left', 'code': 97 },
     *   { 'dir': 'right', 'code': 100 }
     * ];
     *
     * _.keyBy(array, function(o) {
     *   return String.fromCharCode(o.code);
     * });
     * // => { 'a': { 'dir': 'left', 'code': 97 }, 'd': { 'dir': 'right', 'code': 100 } }
     *
     * _.keyBy(array, 'dir');
     * // => { 'left': { 'dir': 'left', 'code': 97 }, 'right': { 'dir': 'right', 'code': 100 } }
     */
    var keyBy = createAggregator(function(result, value, key) {
      baseAssignValue(result, key, value);
    });

    /**
     * Creates an array of values by running each element in `collection` thru
     * `iteratee`. The iteratee is invoked with three arguments:
     * (value, index|key, collection).
     *
     * Many lodash methods are guarded to work as iteratees for methods like
     * `_.every`, `_.filter`, `_.map`, `_.mapValues`, `_.reject`, and `_.some`.
     *
     * The guarded methods are:
     * `ary`, `chunk`, `curry`, `curryRight`, `drop`, `dropRight`, `every`,
     * `fill`, `invert`, `parseInt`, `random`, `range`, `rangeRight`, `repeat`,
     * `sampleSize`, `slice`, `some`, `sortBy`, `split`, `take`, `takeRight`,
     * `template`, `trim`, `trimEnd`, `trimStart`, and `words`
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @returns {Array} Returns the new mapped array.
     * @example
     *
     * function square(n) {
     *   return n * n;
     * }
     *
     * _.map([4, 8], square);
     * // => [16, 64]
     *
     * _.map({ 'a': 4, 'b': 8 }, square);
     * // => [16, 64] (iteration order is not guaranteed)
     *
     * var users = [
     *   { 'user': 'barney' },
     *   { 'user': 'fred' }
     * ];
     *
     * // The `_.property` iteratee shorthand.
     * _.map(users, 'user');
     * // => ['barney', 'fred']
     */
    function map(collection, iteratee) {
      var func = isArray(collection) ? arrayMap : baseMap;
      return func(collection, getIteratee(iteratee, 3));
    }

    /**
     * This method is like `_.sortBy` except that it allows specifying the sort
     * orders of the iteratees to sort by. If `orders` is unspecified, all values
     * are sorted in ascending order. Otherwise, specify an order of "desc" for
     * descending or "asc" for ascending sort order of corresponding values.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Array[]|Function[]|Object[]|string[]} [iteratees=[_.identity]]
     *  The iteratees to sort by.
     * @param {string[]} [orders] The sort orders of `iteratees`.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`.
     * @returns {Array} Returns the new sorted array.
     * @example
     *
     * var users = [
     *   { 'user': 'fred',   'age': 48 },
     *   { 'user': 'barney', 'age': 34 },
     *   { 'user': 'fred',   'age': 40 },
     *   { 'user': 'barney', 'age': 36 }
     * ];
     *
     * // Sort by `user` in ascending order and by `age` in descending order.
     * _.orderBy(users, ['user', 'age'], ['asc', 'desc']);
     * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 40]]
     */
    function orderBy(collection, iteratees, orders, guard) {
      if (collection == null) {
        return [];
      }
      if (!isArray(iteratees)) {
        iteratees = iteratees == null ? [] : [iteratees];
      }
      orders = guard ? undefined : orders;
      if (!isArray(orders)) {
        orders = orders == null ? [] : [orders];
      }
      return baseOrderBy(collection, iteratees, orders);
    }

    /**
     * Creates an array of elements split into two groups, the first of which
     * contains elements `predicate` returns truthy for, the second of which
     * contains elements `predicate` returns falsey for. The predicate is
     * invoked with one argument: (value).
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @returns {Array} Returns the array of grouped elements.
     * @example
     *
     * var users = [
     *   { 'user': 'barney',  'age': 36, 'active': false },
     *   { 'user': 'fred',    'age': 40, 'active': true },
     *   { 'user': 'pebbles', 'age': 1,  'active': false }
     * ];
     *
     * _.partition(users, function(o) { return o.active; });
     * // => objects for [['fred'], ['barney', 'pebbles']]
     *
     * // The `_.matches` iteratee shorthand.
     * _.partition(users, { 'age': 1, 'active': false });
     * // => objects for [['pebbles'], ['barney', 'fred']]
     *
     * // The `_.matchesProperty` iteratee shorthand.
     * _.partition(users, ['active', false]);
     * // => objects for [['barney', 'pebbles'], ['fred']]
     *
     * // The `_.property` iteratee shorthand.
     * _.partition(users, 'active');
     * // => objects for [['fred'], ['barney', 'pebbles']]
     */
    var partition = createAggregator(function(result, value, key) {
      result[key ? 0 : 1].push(value);
    }, function() { return [[], []]; });

    /**
     * Reduces `collection` to a value which is the accumulated result of running
     * each element in `collection` thru `iteratee`, where each successive
     * invocation is supplied the return value of the previous. If `accumulator`
     * is not given, the first element of `collection` is used as the initial
     * value. The iteratee is invoked with four arguments:
     * (accumulator, value, index|key, collection).
     *
     * Many lodash methods are guarded to work as iteratees for methods like
     * `_.reduce`, `_.reduceRight`, and `_.transform`.
     *
     * The guarded methods are:
     * `assign`, `defaults`, `defaultsDeep`, `includes`, `merge`, `orderBy`,
     * and `sortBy`
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @param {*} [accumulator] The initial value.
     * @returns {*} Returns the accumulated value.
     * @see _.reduceRight
     * @example
     *
     * _.reduce([1, 2], function(sum, n) {
     *   return sum + n;
     * }, 0);
     * // => 3
     *
     * _.reduce({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) {
     *   (result[value] || (result[value] = [])).push(key);
     *   return result;
     * }, {});
     * // => { '1': ['a', 'c'], '2': ['b'] } (iteration order is not guaranteed)
     */
    function reduce(collection, iteratee, accumulator) {
      var func = isArray(collection) ? arrayReduce : baseReduce,
          initAccum = arguments.length < 3;

      return func(collection, getIteratee(iteratee, 4), accumulator, initAccum, baseEach);
    }

    /**
     * This method is like `_.reduce` except that it iterates over elements of
     * `collection` from right to left.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @param {*} [accumulator] The initial value.
     * @returns {*} Returns the accumulated value.
     * @see _.reduce
     * @example
     *
     * var array = [[0, 1], [2, 3], [4, 5]];
     *
     * _.reduceRight(array, function(flattened, other) {
     *   return flattened.concat(other);
     * }, []);
     * // => [4, 5, 2, 3, 0, 1]
     */
    function reduceRight(collection, iteratee, accumulator) {
      var func = isArray(collection) ? arrayReduceRight : baseReduce,
          initAccum = arguments.length < 3;

      return func(collection, getIteratee(iteratee, 4), accumulator, initAccum, baseEachRight);
    }

    /**
     * The opposite of `_.filter`; this method returns the elements of `collection`
     * that `predicate` does **not** return truthy for.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @returns {Array} Returns the new filtered array.
     * @see _.filter
     * @example
     *
     * var users = [
     *   { 'user': 'barney', 'age': 36, 'active': false },
     *   { 'user': 'fred',   'age': 40, 'active': true }
     * ];
     *
     * _.reject(users, function(o) { return !o.active; });
     * // => objects for ['fred']
     *
     * // The `_.matches` iteratee shorthand.
     * _.reject(users, { 'age': 40, 'active': true });
     * // => objects for ['barney']
     *
     * // The `_.matchesProperty` iteratee shorthand.
     * _.reject(users, ['active', false]);
     * // => objects for ['fred']
     *
     * // The `_.property` iteratee shorthand.
     * _.reject(users, 'active');
     * // => objects for ['barney']
     */
    function reject(collection, predicate) {
      var func = isArray(collection) ? arrayFilter : baseFilter;
      return func(collection, negate(getIteratee(predicate, 3)));
    }

    /**
     * Gets a random element from `collection`.
     *
     * @static
     * @memberOf _
     * @since 2.0.0
     * @category Collection
     * @param {Array|Object} collection The collection to sample.
     * @returns {*} Returns the random element.
     * @example
     *
     * _.sample([1, 2, 3, 4]);
     * // => 2
     */
    function sample(collection) {
      var func = isArray(collection) ? arraySample : baseSample;
      return func(collection);
    }

    /**
     * Gets `n` random elements at unique keys from `collection` up to the
     * size of `collection`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Collection
     * @param {Array|Object} collection The collection to sample.
     * @param {number} [n=1] The number of elements to sample.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {Array} Returns the random elements.
     * @example
     *
     * _.sampleSize([1, 2, 3], 2);
     * // => [3, 1]
     *
     * _.sampleSize([1, 2, 3], 4);
     * // => [2, 3, 1]
     */
    function sampleSize(collection, n, guard) {
      if ((guard ? isIterateeCall(collection, n, guard) : n === undefined)) {
        n = 1;
      } else {
        n = toInteger(n);
      }
      var func = isArray(collection) ? arraySampleSize : baseSampleSize;
      return func(collection, n);
    }

    /**
     * Creates an array of shuffled values, using a version of the
     * [Fisher-Yates shuffle](https://en.wikipedia.org/wiki/Fisher-Yates_shuffle).
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Collection
     * @param {Array|Object} collection The collection to shuffle.
     * @returns {Array} Returns the new shuffled array.
     * @example
     *
     * _.shuffle([1, 2, 3, 4]);
     * // => [4, 1, 3, 2]
     */
    function shuffle(collection) {
      var func = isArray(collection) ? arrayShuffle : baseShuffle;
      return func(collection);
    }

    /**
     * Gets the size of `collection` by returning its length for array-like
     * values or the number of own enumerable string keyed properties for objects.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Collection
     * @param {Array|Object|string} collection The collection to inspect.
     * @returns {number} Returns the collection size.
     * @example
     *
     * _.size([1, 2, 3]);
     * // => 3
     *
     * _.size({ 'a': 1, 'b': 2 });
     * // => 2
     *
     * _.size('pebbles');
     * // => 7
     */
    function size(collection) {
      if (collection == null) {
        return 0;
      }
      if (isArrayLike(collection)) {
        return isString(collection) ? stringSize(collection) : collection.length;
      }
      var tag = getTag(collection);
      if (tag == mapTag || tag == setTag) {
        return collection.size;
      }
      return baseKeys(collection).length;
    }

    /**
     * Checks if `predicate` returns truthy for **any** element of `collection`.
     * Iteration is stopped once `predicate` returns truthy. The predicate is
     * invoked with three arguments: (value, index|key, collection).
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {boolean} Returns `true` if any element passes the predicate check,
     *  else `false`.
     * @example
     *
     * _.some([null, 0, 'yes', false], Boolean);
     * // => true
     *
     * var users = [
     *   { 'user': 'barney', 'active': true },
     *   { 'user': 'fred',   'active': false }
     * ];
     *
     * // The `_.matches` iteratee shorthand.
     * _.some(users, { 'user': 'barney', 'active': false });
     * // => false
     *
     * // The `_.matchesProperty` iteratee shorthand.
     * _.some(users, ['active', false]);
     * // => true
     *
     * // The `_.property` iteratee shorthand.
     * _.some(users, 'active');
     * // => true
     */
    function some(collection, predicate, guard) {
      var func = isArray(collection) ? arraySome : baseSome;
      if (guard && isIterateeCall(collection, predicate, guard)) {
        predicate = undefined;
      }
      return func(collection, getIteratee(predicate, 3));
    }

    /**
     * Creates an array of elements, sorted in ascending order by the results of
     * running each element in a collection thru each iteratee. This method
     * performs a stable sort, that is, it preserves the original sort order of
     * equal elements. The iteratees are invoked with one argument: (value).
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {...(Function|Function[])} [iteratees=[_.identity]]
     *  The iteratees to sort by.
     * @returns {Array} Returns the new sorted array.
     * @example
     *
     * var users = [
     *   { 'user': 'fred',   'age': 48 },
     *   { 'user': 'barney', 'age': 36 },
     *   { 'user': 'fred',   'age': 40 },
     *   { 'user': 'barney', 'age': 34 }
     * ];
     *
     * _.sortBy(users, [function(o) { return o.user; }]);
     * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 40]]
     *
     * _.sortBy(users, ['user', 'age']);
     * // => objects for [['barney', 34], ['barney', 36], ['fred', 40], ['fred', 48]]
     */
    var sortBy = baseRest(function(collection, iteratees) {
      if (collection == null) {
        return [];
      }
      var length = iteratees.length;
      if (length > 1 && isIterateeCall(collection, iteratees[0], iteratees[1])) {
        iteratees = [];
      } else if (length > 2 && isIterateeCall(iteratees[0], iteratees[1], iteratees[2])) {
        iteratees = [iteratees[0]];
      }
      return baseOrderBy(collection, baseFlatten(iteratees, 1), []);
    });

    /*------------------------------------------------------------------------*/

    /**
     * Gets the timestamp of the number of milliseconds that have elapsed since
     * the Unix epoch (1 January 1970 00:00:00 UTC).
     *
     * @static
     * @memberOf _
     * @since 2.4.0
     * @category Date
     * @returns {number} Returns the timestamp.
     * @example
     *
     * _.defer(function(stamp) {
     *   console.log(_.now() - stamp);
     * }, _.now());
     * // => Logs the number of milliseconds it took for the deferred invocation.
     */
    var now = ctxNow || function() {
      return root.Date.now();
    };

    /*------------------------------------------------------------------------*/

    /**
     * The opposite of `_.before`; this method creates a function that invokes
     * `func` once it's called `n` or more times.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Function
     * @param {number} n The number of calls before `func` is invoked.
     * @param {Function} func The function to restrict.
     * @returns {Function} Returns the new restricted function.
     * @example
     *
     * var saves = ['profile', 'settings'];
     *
     * var done = _.after(saves.length, function() {
     *   console.log('done saving!');
     * });
     *
     * _.forEach(saves, function(type) {
     *   asyncSave({ 'type': type, 'complete': done });
     * });
     * // => Logs 'done saving!' after the two async saves have completed.
     */
    function after(n, func) {
      if (typeof func != 'function') {
        throw new TypeError(FUNC_ERROR_TEXT);
      }
      n = toInteger(n);
      return function() {
        if (--n < 1) {
          return func.apply(this, arguments);
        }
      };
    }

    /**
     * Creates a function that invokes `func`, with up to `n` arguments,
     * ignoring any additional arguments.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Function
     * @param {Function} func The function to cap arguments for.
     * @param {number} [n=func.length] The arity cap.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {Function} Returns the new capped function.
     * @example
     *
     * _.map(['6', '8', '10'], _.ary(parseInt, 1));
     * // => [6, 8, 10]
     */
    function ary(func, n, guard) {
      n = guard ? undefined : n;
      n = (func && n == null) ? func.length : n;
      return createWrap(func, WRAP_ARY_FLAG, undefined, undefined, undefined, undefined, n);
    }

    /**
     * Creates a function that invokes `func`, with the `this` binding and arguments
     * of the created function, while it's called less than `n` times. Subsequent
     * calls to the created function return the result of the last `func` invocation.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Function
     * @param {number} n The number of calls at which `func` is no longer invoked.
     * @param {Function} func The function to restrict.
     * @returns {Function} Returns the new restricted function.
     * @example
     *
     * jQuery(element).on('click', _.before(5, addContactToList));
     * // => Allows adding up to 4 contacts to the list.
     */
    function before(n, func) {
      var result;
      if (typeof func != 'function') {
        throw new TypeError(FUNC_ERROR_TEXT);
      }
      n = toInteger(n);
      return function() {
        if (--n > 0) {
          result = func.apply(this, arguments);
        }
        if (n <= 1) {
          func = undefined;
        }
        return result;
      };
    }

    /**
     * Creates a function that invokes `func` with the `this` binding of `thisArg`
     * and `partials` prepended to the arguments it receives.
     *
     * The `_.bind.placeholder` value, which defaults to `_` in monolithic builds,
     * may be used as a placeholder for partially applied arguments.
     *
     * **Note:** Unlike native `Function#bind`, this method doesn't set the "length"
     * property of bound functions.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Function
     * @param {Function} func The function to bind.
     * @param {*} thisArg The `this` binding of `func`.
     * @param {...*} [partials] The arguments to be partially applied.
     * @returns {Function} Returns the new bound function.
     * @example
     *
     * function greet(greeting, punctuation) {
     *   return greeting + ' ' + this.user + punctuation;
     * }
     *
     * var object = { 'user': 'fred' };
     *
     * var bound = _.bind(greet, object, 'hi');
     * bound('!');
     * // => 'hi fred!'
     *
     * // Bound with placeholders.
     * var bound = _.bind(greet, object, _, '!');
     * bound('hi');
     * // => 'hi fred!'
     */
    var bind = baseRest(function(func, thisArg, partials) {
      var bitmask = WRAP_BIND_FLAG;
      if (partials.length) {
        var holders = replaceHolders(partials, getHolder(bind));
        bitmask |= WRAP_PARTIAL_FLAG;
      }
      return createWrap(func, bitmask, thisArg, partials, holders);
    });

    /**
     * Creates a function that invokes the method at `object[key]` with `partials`
     * prepended to the arguments it receives.
     *
     * This method differs from `_.bind` by allowing bound functions to reference
     * methods that may be redefined or don't yet exist. See
     * [Peter Michaux's article](http://peter.michaux.ca/articles/lazy-function-definition-pattern)
     * for more details.
     *
     * The `_.bindKey.placeholder` value, which defaults to `_` in monolithic
     * builds, may be used as a placeholder for partially applied arguments.
     *
     * @static
     * @memberOf _
     * @since 0.10.0
     * @category Function
     * @param {Object} object The object to invoke the method on.
     * @param {string} key The key of the method.
     * @param {...*} [partials] The arguments to be partially applied.
     * @returns {Function} Returns the new bound function.
     * @example
     *
     * var object = {
     *   'user': 'fred',
     *   'greet': function(greeting, punctuation) {
     *     return greeting + ' ' + this.user + punctuation;
     *   }
     * };
     *
     * var bound = _.bindKey(object, 'greet', 'hi');
     * bound('!');
     * // => 'hi fred!'
     *
     * object.greet = function(greeting, punctuation) {
     *   return greeting + 'ya ' + this.user + punctuation;
     * };
     *
     * bound('!');
     * // => 'hiya fred!'
     *
     * // Bound with placeholders.
     * var bound = _.bindKey(object, 'greet', _, '!');
     * bound('hi');
     * // => 'hiya fred!'
     */
    var bindKey = baseRest(function(object, key, partials) {
      var bitmask = WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG;
      if (partials.length) {
        var holders = replaceHolders(partials, getHolder(bindKey));
        bitmask |= WRAP_PARTIAL_FLAG;
      }
      return createWrap(key, bitmask, object, partials, holders);
    });

    /**
     * Creates a function that accepts arguments of `func` and either invokes
     * `func` returning its result, if at least `arity` number of arguments have
     * been provided, or returns a function that accepts the remaining `func`
     * arguments, and so on. The arity of `func` may be specified if `func.length`
     * is not sufficient.
     *
     * The `_.curry.placeholder` value, which defaults to `_` in monolithic builds,
     * may be used as a placeholder for provided arguments.
     *
     * **Note:** This method doesn't set the "length" property of curried functions.
     *
     * @static
     * @memberOf _
     * @since 2.0.0
     * @category Function
     * @param {Function} func The function to curry.
     * @param {number} [arity=func.length] The arity of `func`.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {Function} Returns the new curried function.
     * @example
     *
     * var abc = function(a, b, c) {
     *   return [a, b, c];
     * };
     *
     * var curried = _.curry(abc);
     *
     * curried(1)(2)(3);
     * // => [1, 2, 3]
     *
     * curried(1, 2)(3);
     * // => [1, 2, 3]
     *
     * curried(1, 2, 3);
     * // => [1, 2, 3]
     *
     * // Curried with placeholders.
     * curried(1)(_, 3)(2);
     * // => [1, 2, 3]
     */
    function curry(func, arity, guard) {
      arity = guard ? undefined : arity;
      var result = createWrap(func, WRAP_CURRY_FLAG, undefined, undefined, undefined, undefined, undefined, arity);
      result.placeholder = curry.placeholder;
      return result;
    }

    /**
     * This method is like `_.curry` except that arguments are applied to `func`
     * in the manner of `_.partialRight` instead of `_.partial`.
     *
     * The `_.curryRight.placeholder` value, which defaults to `_` in monolithic
     * builds, may be used as a placeholder for provided arguments.
     *
     * **Note:** This method doesn't set the "length" property of curried functions.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Function
     * @param {Function} func The function to curry.
     * @param {number} [arity=func.length] The arity of `func`.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {Function} Returns the new curried function.
     * @example
     *
     * var abc = function(a, b, c) {
     *   return [a, b, c];
     * };
     *
     * var curried = _.curryRight(abc);
     *
     * curried(3)(2)(1);
     * // => [1, 2, 3]
     *
     * curried(2, 3)(1);
     * // => [1, 2, 3]
     *
     * curried(1, 2, 3);
     * // => [1, 2, 3]
     *
     * // Curried with placeholders.
     * curried(3)(1, _)(2);
     * // => [1, 2, 3]
     */
    function curryRight(func, arity, guard) {
      arity = guard ? undefined : arity;
      var result = createWrap(func, WRAP_CURRY_RIGHT_FLAG, undefined, undefined, undefined, undefined, undefined, arity);
      result.placeholder = curryRight.placeholder;
      return result;
    }

    /**
     * Creates a debounced function that delays invoking `func` until after `wait`
     * milliseconds have elapsed since the last time the debounced function was
     * invoked. The debounced function comes with a `cancel` method to cancel
     * delayed `func` invocations and a `flush` method to immediately invoke them.
     * Provide `options` to indicate whether `func` should be invoked on the
     * leading and/or trailing edge of the `wait` timeout. The `func` is invoked
     * with the last arguments provided to the debounced function. Subsequent
     * calls to the debounced function return the result of the last `func`
     * invocation.
     *
     * **Note:** If `leading` and `trailing` options are `true`, `func` is
     * invoked on the trailing edge of the timeout only if the debounced function
     * is invoked more than once during the `wait` timeout.
     *
     * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred
     * until to the next tick, similar to `setTimeout` with a timeout of `0`.
     *
     * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)
     * for details over the differences between `_.debounce` and `_.throttle`.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Function
     * @param {Function} func The function to debounce.
     * @param {number} [wait=0] The number of milliseconds to delay.
     * @param {Object} [options={}] The options object.
     * @param {boolean} [options.leading=false]
     *  Specify invoking on the leading edge of the timeout.
     * @param {number} [options.maxWait]
     *  The maximum time `func` is allowed to be delayed before it's invoked.
     * @param {boolean} [options.trailing=true]
     *  Specify invoking on the trailing edge of the timeout.
     * @returns {Function} Returns the new debounced function.
     * @example
     *
     * // Avoid costly calculations while the window size is in flux.
     * jQuery(window).on('resize', _.debounce(calculateLayout, 150));
     *
     * // Invoke `sendMail` when clicked, debouncing subsequent calls.
     * jQuery(element).on('click', _.debounce(sendMail, 300, {
     *   'leading': true,
     *   'trailing': false
     * }));
     *
     * // Ensure `batchLog` is invoked once after 1 second of debounced calls.
     * var debounced = _.debounce(batchLog, 250, { 'maxWait': 1000 });
     * var source = new EventSource('/stream');
     * jQuery(source).on('message', debounced);
     *
     * // Cancel the trailing debounced invocation.
     * jQuery(window).on('popstate', debounced.cancel);
     */
    function debounce(func, wait, options) {
      var lastArgs,
          lastThis,
          maxWait,
          result,
          timerId,
          lastCallTime,
          lastInvokeTime = 0,
          leading = false,
          maxing = false,
          trailing = true;

      if (typeof func != 'function') {
        throw new TypeError(FUNC_ERROR_TEXT);
      }
      wait = toNumber(wait) || 0;
      if (isObject(options)) {
        leading = !!options.leading;
        maxing = 'maxWait' in options;
        maxWait = maxing ? nativeMax(toNumber(options.maxWait) || 0, wait) : maxWait;
        trailing = 'trailing' in options ? !!options.trailing : trailing;
      }

      function invokeFunc(time) {
        var args = lastArgs,
            thisArg = lastThis;

        lastArgs = lastThis = undefined;
        lastInvokeTime = time;
        result = func.apply(thisArg, args);
        return result;
      }

      function leadingEdge(time) {
        // Reset any `maxWait` timer.
        lastInvokeTime = time;
        // Start the timer for the trailing edge.
        timerId = setTimeout(timerExpired, wait);
        // Invoke the leading edge.
        return leading ? invokeFunc(time) : result;
      }

      function remainingWait(time) {
        var timeSinceLastCall = time - lastCallTime,
            timeSinceLastInvoke = time - lastInvokeTime,
            result = wait - timeSinceLastCall;

        return maxing ? nativeMin(result, maxWait - timeSinceLastInvoke) : result;
      }

      function shouldInvoke(time) {
        var timeSinceLastCall = time - lastCallTime,
            timeSinceLastInvoke = time - lastInvokeTime;

        // Either this is the first call, activity has stopped and we're at the
        // trailing edge, the system time has gone backwards and we're treating
        // it as the trailing edge, or we've hit the `maxWait` limit.
        return (lastCallTime === undefined || (timeSinceLastCall >= wait) ||
          (timeSinceLastCall < 0) || (maxing && timeSinceLastInvoke >= maxWait));
      }

      function timerExpired() {
        var time = now();
        if (shouldInvoke(time)) {
          return trailingEdge(time);
        }
        // Restart the timer.
        timerId = setTimeout(timerExpired, remainingWait(time));
      }

      function trailingEdge(time) {
        timerId = undefined;

        // Only invoke if we have `lastArgs` which means `func` has been
        // debounced at least once.
        if (trailing && lastArgs) {
          return invokeFunc(time);
        }
        lastArgs = lastThis = undefined;
        return result;
      }

      function cancel() {
        if (timerId !== undefined) {
          clearTimeout(timerId);
        }
        lastInvokeTime = 0;
        lastArgs = lastCallTime = lastThis = timerId = undefined;
      }

      function flush() {
        return timerId === undefined ? result : trailingEdge(now());
      }

      function debounced() {
        var time = now(),
            isInvoking = shouldInvoke(time);

        lastArgs = arguments;
        lastThis = this;
        lastCallTime = time;

        if (isInvoking) {
          if (timerId === undefined) {
            return leadingEdge(lastCallTime);
          }
          if (maxing) {
            // Handle invocations in a tight loop.
            timerId = setTimeout(timerExpired, wait);
            return invokeFunc(lastCallTime);
          }
        }
        if (timerId === undefined) {
          timerId = setTimeout(timerExpired, wait);
        }
        return result;
      }
      debounced.cancel = cancel;
      debounced.flush = flush;
      return debounced;
    }

    /**
     * Defers invoking the `func` until the current call stack has cleared. Any
     * additional arguments are provided to `func` when it's invoked.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Function
     * @param {Function} func The function to defer.
     * @param {...*} [args] The arguments to invoke `func` with.
     * @returns {number} Returns the timer id.
     * @example
     *
     * _.defer(function(text) {
     *   console.log(text);
     * }, 'deferred');
     * // => Logs 'deferred' after one millisecond.
     */
    var defer = baseRest(function(func, args) {
      return baseDelay(func, 1, args);
    });

    /**
     * Invokes `func` after `wait` milliseconds. Any additional arguments are
     * provided to `func` when it's invoked.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Function
     * @param {Function} func The function to delay.
     * @param {number} wait The number of milliseconds to delay invocation.
     * @param {...*} [args] The arguments to invoke `func` with.
     * @returns {number} Returns the timer id.
     * @example
     *
     * _.delay(function(text) {
     *   console.log(text);
     * }, 1000, 'later');
     * // => Logs 'later' after one second.
     */
    var delay = baseRest(function(func, wait, args) {
      return baseDelay(func, toNumber(wait) || 0, args);
    });

    /**
     * Creates a function that invokes `func` with arguments reversed.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Function
     * @param {Function} func The function to flip arguments for.
     * @returns {Function} Returns the new flipped function.
     * @example
     *
     * var flipped = _.flip(function() {
     *   return _.toArray(arguments);
     * });
     *
     * flipped('a', 'b', 'c', 'd');
     * // => ['d', 'c', 'b', 'a']
     */
    function flip(func) {
      return createWrap(func, WRAP_FLIP_FLAG);
    }

    /**
     * Creates a function that memoizes the result of `func`. If `resolver` is
     * provided, it determines the cache key for storing the result based on the
     * arguments provided to the memoized function. By default, the first argument
     * provided to the memoized function is used as the map cache key. The `func`
     * is invoked with the `this` binding of the memoized function.
     *
     * **Note:** The cache is exposed as the `cache` property on the memoized
     * function. Its creation may be customized by replacing the `_.memoize.Cache`
     * constructor with one whose instances implement the
     * [`Map`](http://ecma-international.org/ecma-262/7.0/#sec-properties-of-the-map-prototype-object)
     * method interface of `clear`, `delete`, `get`, `has`, and `set`.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Function
     * @param {Function} func The function to have its output memoized.
     * @param {Function} [resolver] The function to resolve the cache key.
     * @returns {Function} Returns the new memoized function.
     * @example
     *
     * var object = { 'a': 1, 'b': 2 };
     * var other = { 'c': 3, 'd': 4 };
     *
     * var values = _.memoize(_.values);
     * values(object);
     * // => [1, 2]
     *
     * values(other);
     * // => [3, 4]
     *
     * object.a = 2;
     * values(object);
     * // => [1, 2]
     *
     * // Modify the result cache.
     * values.cache.set(object, ['a', 'b']);
     * values(object);
     * // => ['a', 'b']
     *
     * // Replace `_.memoize.Cache`.
     * _.memoize.Cache = WeakMap;
     */
    function memoize(func, resolver) {
      if (typeof func != 'function' || (resolver != null && typeof resolver != 'function')) {
        throw new TypeError(FUNC_ERROR_TEXT);
      }
      var memoized = function() {
        var args = arguments,
            key = resolver ? resolver.apply(this, args) : args[0],
            cache = memoized.cache;

        if (cache.has(key)) {
          return cache.get(key);
        }
        var result = func.apply(this, args);
        memoized.cache = cache.set(key, result) || cache;
        return result;
      };
      memoized.cache = new (memoize.Cache || MapCache);
      return memoized;
    }

    // Expose `MapCache`.
    memoize.Cache = MapCache;

    /**
     * Creates a function that negates the result of the predicate `func`. The
     * `func` predicate is invoked with the `this` binding and arguments of the
     * created function.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Function
     * @param {Function} predicate The predicate to negate.
     * @returns {Function} Returns the new negated function.
     * @example
     *
     * function isEven(n) {
     *   return n % 2 == 0;
     * }
     *
     * _.filter([1, 2, 3, 4, 5, 6], _.negate(isEven));
     * // => [1, 3, 5]
     */
    function negate(predicate) {
      if (typeof predicate != 'function') {
        throw new TypeError(FUNC_ERROR_TEXT);
      }
      return function() {
        var args = arguments;
        switch (args.length) {
          case 0: return !predicate.call(this);
          case 1: return !predicate.call(this, args[0]);
          case 2: return !predicate.call(this, args[0], args[1]);
          case 3: return !predicate.call(this, args[0], args[1], args[2]);
        }
        return !predicate.apply(this, args);
      };
    }

    /**
     * Creates a function that is restricted to invoking `func` once. Repeat calls
     * to the function return the value of the first invocation. The `func` is
     * invoked with the `this` binding and arguments of the created function.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Function
     * @param {Function} func The function to restrict.
     * @returns {Function} Returns the new restricted function.
     * @example
     *
     * var initialize = _.once(createApplication);
     * initialize();
     * initialize();
     * // => `createApplication` is invoked once
     */
    function once(func) {
      return before(2, func);
    }

    /**
     * Creates a function that invokes `func` with its arguments transformed.
     *
     * @static
     * @since 4.0.0
     * @memberOf _
     * @category Function
     * @param {Function} func The function to wrap.
     * @param {...(Function|Function[])} [transforms=[_.identity]]
     *  The argument transforms.
     * @returns {Function} Returns the new function.
     * @example
     *
     * function doubled(n) {
     *   return n * 2;
     * }
     *
     * function square(n) {
     *   return n * n;
     * }
     *
     * var func = _.overArgs(function(x, y) {
     *   return [x, y];
     * }, [square, doubled]);
     *
     * func(9, 3);
     * // => [81, 6]
     *
     * func(10, 5);
     * // => [100, 10]
     */
    var overArgs = castRest(function(func, transforms) {
      transforms = (transforms.length == 1 && isArray(transforms[0]))
        ? arrayMap(transforms[0], baseUnary(getIteratee()))
        : arrayMap(baseFlatten(transforms, 1), baseUnary(getIteratee()));

      var funcsLength = transforms.length;
      return baseRest(function(args) {
        var index = -1,
            length = nativeMin(args.length, funcsLength);

        while (++index < length) {
          args[index] = transforms[index].call(this, args[index]);
        }
        return apply(func, this, args);
      });
    });

    /**
     * Creates a function that invokes `func` with `partials` prepended to the
     * arguments it receives. This method is like `_.bind` except it does **not**
     * alter the `this` binding.
     *
     * The `_.partial.placeholder` value, which defaults to `_` in monolithic
     * builds, may be used as a placeholder for partially applied arguments.
     *
     * **Note:** This method doesn't set the "length" property of partially
     * applied functions.
     *
     * @static
     * @memberOf _
     * @since 0.2.0
     * @category Function
     * @param {Function} func The function to partially apply arguments to.
     * @param {...*} [partials] The arguments to be partially applied.
     * @returns {Function} Returns the new partially applied function.
     * @example
     *
     * function greet(greeting, name) {
     *   return greeting + ' ' + name;
     * }
     *
     * var sayHelloTo = _.partial(greet, 'hello');
     * sayHelloTo('fred');
     * // => 'hello fred'
     *
     * // Partially applied with placeholders.
     * var greetFred = _.partial(greet, _, 'fred');
     * greetFred('hi');
     * // => 'hi fred'
     */
    var partial = baseRest(function(func, partials) {
      var holders = replaceHolders(partials, getHolder(partial));
      return createWrap(func, WRAP_PARTIAL_FLAG, undefined, partials, holders);
    });

    /**
     * This method is like `_.partial` except that partially applied arguments
     * are appended to the arguments it receives.
     *
     * The `_.partialRight.placeholder` value, which defaults to `_` in monolithic
     * builds, may be used as a placeholder for partially applied arguments.
     *
     * **Note:** This method doesn't set the "length" property of partially
     * applied functions.
     *
     * @static
     * @memberOf _
     * @since 1.0.0
     * @category Function
     * @param {Function} func The function to partially apply arguments to.
     * @param {...*} [partials] The arguments to be partially applied.
     * @returns {Function} Returns the new partially applied function.
     * @example
     *
     * function greet(greeting, name) {
     *   return greeting + ' ' + name;
     * }
     *
     * var greetFred = _.partialRight(greet, 'fred');
     * greetFred('hi');
     * // => 'hi fred'
     *
     * // Partially applied with placeholders.
     * var sayHelloTo = _.partialRight(greet, 'hello', _);
     * sayHelloTo('fred');
     * // => 'hello fred'
     */
    var partialRight = baseRest(function(func, partials) {
      var holders = replaceHolders(partials, getHolder(partialRight));
      return createWrap(func, WRAP_PARTIAL_RIGHT_FLAG, undefined, partials, holders);
    });

    /**
     * Creates a function that invokes `func` with arguments arranged according
     * to the specified `indexes` where the argument value at the first index is
     * provided as the first argument, the argument value at the second index is
     * provided as the second argument, and so on.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Function
     * @param {Function} func The function to rearrange arguments for.
     * @param {...(number|number[])} indexes The arranged argument indexes.
     * @returns {Function} Returns the new function.
     * @example
     *
     * var rearged = _.rearg(function(a, b, c) {
     *   return [a, b, c];
     * }, [2, 0, 1]);
     *
     * rearged('b', 'c', 'a')
     * // => ['a', 'b', 'c']
     */
    var rearg = flatRest(function(func, indexes) {
      return createWrap(func, WRAP_REARG_FLAG, undefined, undefined, undefined, indexes);
    });

    /**
     * Creates a function that invokes `func` with the `this` binding of the
     * created function and arguments from `start` and beyond provided as
     * an array.
     *
     * **Note:** This method is based on the
     * [rest parameter](https://mdn.io/rest_parameters).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Function
     * @param {Function} func The function to apply a rest parameter to.
     * @param {number} [start=func.length-1] The start position of the rest parameter.
     * @returns {Function} Returns the new function.
     * @example
     *
     * var say = _.rest(function(what, names) {
     *   return what + ' ' + _.initial(names).join(', ') +
     *     (_.size(names) > 1 ? ', & ' : '') + _.last(names);
     * });
     *
     * say('hello', 'fred', 'barney', 'pebbles');
     * // => 'hello fred, barney, & pebbles'
     */
    function rest(func, start) {
      if (typeof func != 'function') {
        throw new TypeError(FUNC_ERROR_TEXT);
      }
      start = start === undefined ? start : toInteger(start);
      return baseRest(func, start);
    }

    /**
     * Creates a function that invokes `func` with the `this` binding of the
     * create function and an array of arguments much like
     * [`Function#apply`](http://www.ecma-international.org/ecma-262/7.0/#sec-function.prototype.apply).
     *
     * **Note:** This method is based on the
     * [spread operator](https://mdn.io/spread_operator).
     *
     * @static
     * @memberOf _
     * @since 3.2.0
     * @category Function
     * @param {Function} func The function to spread arguments over.
     * @param {number} [start=0] The start position of the spread.
     * @returns {Function} Returns the new function.
     * @example
     *
     * var say = _.spread(function(who, what) {
     *   return who + ' says ' + what;
     * });
     *
     * say(['fred', 'hello']);
     * // => 'fred says hello'
     *
     * var numbers = Promise.all([
     *   Promise.resolve(40),
     *   Promise.resolve(36)
     * ]);
     *
     * numbers.then(_.spread(function(x, y) {
     *   return x + y;
     * }));
     * // => a Promise of 76
     */
    function spread(func, start) {
      if (typeof func != 'function') {
        throw new TypeError(FUNC_ERROR_TEXT);
      }
      start = start == null ? 0 : nativeMax(toInteger(start), 0);
      return baseRest(function(args) {
        var array = args[start],
            otherArgs = castSlice(args, 0, start);

        if (array) {
          arrayPush(otherArgs, array);
        }
        return apply(func, this, otherArgs);
      });
    }

    /**
     * Creates a throttled function that only invokes `func` at most once per
     * every `wait` milliseconds. The throttled function comes with a `cancel`
     * method to cancel delayed `func` invocations and a `flush` method to
     * immediately invoke them. Provide `options` to indicate whether `func`
     * should be invoked on the leading and/or trailing edge of the `wait`
     * timeout. The `func` is invoked with the last arguments provided to the
     * throttled function. Subsequent calls to the throttled function return the
     * result of the last `func` invocation.
     *
     * **Note:** If `leading` and `trailing` options are `true`, `func` is
     * invoked on the trailing edge of the timeout only if the throttled function
     * is invoked more than once during the `wait` timeout.
     *
     * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred
     * until to the next tick, similar to `setTimeout` with a timeout of `0`.
     *
     * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)
     * for details over the differences between `_.throttle` and `_.debounce`.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Function
     * @param {Function} func The function to throttle.
     * @param {number} [wait=0] The number of milliseconds to throttle invocations to.
     * @param {Object} [options={}] The options object.
     * @param {boolean} [options.leading=true]
     *  Specify invoking on the leading edge of the timeout.
     * @param {boolean} [options.trailing=true]
     *  Specify invoking on the trailing edge of the timeout.
     * @returns {Function} Returns the new throttled function.
     * @example
     *
     * // Avoid excessively updating the position while scrolling.
     * jQuery(window).on('scroll', _.throttle(updatePosition, 100));
     *
     * // Invoke `renewToken` when the click event is fired, but not more than once every 5 minutes.
     * var throttled = _.throttle(renewToken, 300000, { 'trailing': false });
     * jQuery(element).on('click', throttled);
     *
     * // Cancel the trailing throttled invocation.
     * jQuery(window).on('popstate', throttled.cancel);
     */
    function throttle(func, wait, options) {
      var leading = true,
          trailing = true;

      if (typeof func != 'function') {
        throw new TypeError(FUNC_ERROR_TEXT);
      }
      if (isObject(options)) {
        leading = 'leading' in options ? !!options.leading : leading;
        trailing = 'trailing' in options ? !!options.trailing : trailing;
      }
      return debounce(func, wait, {
        'leading': leading,
        'maxWait': wait,
        'trailing': trailing
      });
    }

    /**
     * Creates a function that accepts up to one argument, ignoring any
     * additional arguments.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Function
     * @param {Function} func The function to cap arguments for.
     * @returns {Function} Returns the new capped function.
     * @example
     *
     * _.map(['6', '8', '10'], _.unary(parseInt));
     * // => [6, 8, 10]
     */
    function unary(func) {
      return ary(func, 1);
    }

    /**
     * Creates a function that provides `value` to `wrapper` as its first
     * argument. Any additional arguments provided to the function are appended
     * to those provided to the `wrapper`. The wrapper is invoked with the `this`
     * binding of the created function.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Function
     * @param {*} value The value to wrap.
     * @param {Function} [wrapper=identity] The wrapper function.
     * @returns {Function} Returns the new function.
     * @example
     *
     * var p = _.wrap(_.escape, function(func, text) {
     *   return '<p>' + func(text) + '</p>';
     * });
     *
     * p('fred, barney, & pebbles');
     * // => '<p>fred, barney, &amp; pebbles</p>'
     */
    function wrap(value, wrapper) {
      return partial(castFunction(wrapper), value);
    }

    /*------------------------------------------------------------------------*/

    /**
     * Casts `value` as an array if it's not one.
     *
     * @static
     * @memberOf _
     * @since 4.4.0
     * @category Lang
     * @param {*} value The value to inspect.
     * @returns {Array} Returns the cast array.
     * @example
     *
     * _.castArray(1);
     * // => [1]
     *
     * _.castArray({ 'a': 1 });
     * // => [{ 'a': 1 }]
     *
     * _.castArray('abc');
     * // => ['abc']
     *
     * _.castArray(null);
     * // => [null]
     *
     * _.castArray(undefined);
     * // => [undefined]
     *
     * _.castArray();
     * // => []
     *
     * var array = [1, 2, 3];
     * console.log(_.castArray(array) === array);
     * // => true
     */
    function castArray() {
      if (!arguments.length) {
        return [];
      }
      var value = arguments[0];
      return isArray(value) ? value : [value];
    }

    /**
     * Creates a shallow clone of `value`.
     *
     * **Note:** This method is loosely based on the
     * [structured clone algorithm](https://mdn.io/Structured_clone_algorithm)
     * and supports cloning arrays, array buffers, booleans, date objects, maps,
     * numbers, `Object` objects, regexes, sets, strings, symbols, and typed
     * arrays. The own enumerable properties of `arguments` objects are cloned
     * as plain objects. An empty object is returned for uncloneable values such
     * as error objects, functions, DOM nodes, and WeakMaps.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Lang
     * @param {*} value The value to clone.
     * @returns {*} Returns the cloned value.
     * @see _.cloneDeep
     * @example
     *
     * var objects = [{ 'a': 1 }, { 'b': 2 }];
     *
     * var shallow = _.clone(objects);
     * console.log(shallow[0] === objects[0]);
     * // => true
     */
    function clone(value) {
      return baseClone(value, CLONE_SYMBOLS_FLAG);
    }

    /**
     * This method is like `_.clone` except that it accepts `customizer` which
     * is invoked to produce the cloned value. If `customizer` returns `undefined`,
     * cloning is handled by the method instead. The `customizer` is invoked with
     * up to four arguments; (value [, index|key, object, stack]).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to clone.
     * @param {Function} [customizer] The function to customize cloning.
     * @returns {*} Returns the cloned value.
     * @see _.cloneDeepWith
     * @example
     *
     * function customizer(value) {
     *   if (_.isElement(value)) {
     *     return value.cloneNode(false);
     *   }
     * }
     *
     * var el = _.cloneWith(document.body, customizer);
     *
     * console.log(el === document.body);
     * // => false
     * console.log(el.nodeName);
     * // => 'BODY'
     * console.log(el.childNodes.length);
     * // => 0
     */
    function cloneWith(value, customizer) {
      customizer = typeof customizer == 'function' ? customizer : undefined;
      return baseClone(value, CLONE_SYMBOLS_FLAG, customizer);
    }

    /**
     * This method is like `_.clone` except that it recursively clones `value`.
     *
     * @static
     * @memberOf _
     * @since 1.0.0
     * @category Lang
     * @param {*} value The value to recursively clone.
     * @returns {*} Returns the deep cloned value.
     * @see _.clone
     * @example
     *
     * var objects = [{ 'a': 1 }, { 'b': 2 }];
     *
     * var deep = _.cloneDeep(objects);
     * console.log(deep[0] === objects[0]);
     * // => false
     */
    function cloneDeep(value) {
      return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG);
    }

    /**
     * This method is like `_.cloneWith` except that it recursively clones `value`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to recursively clone.
     * @param {Function} [customizer] The function to customize cloning.
     * @returns {*} Returns the deep cloned value.
     * @see _.cloneWith
     * @example
     *
     * function customizer(value) {
     *   if (_.isElement(value)) {
     *     return value.cloneNode(true);
     *   }
     * }
     *
     * var el = _.cloneDeepWith(document.body, customizer);
     *
     * console.log(el === document.body);
     * // => false
     * console.log(el.nodeName);
     * // => 'BODY'
     * console.log(el.childNodes.length);
     * // => 20
     */
    function cloneDeepWith(value, customizer) {
      customizer = typeof customizer == 'function' ? customizer : undefined;
      return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG, customizer);
    }

    /**
     * Checks if `object` conforms to `source` by invoking the predicate
     * properties of `source` with the corresponding property values of `object`.
     *
     * **Note:** This method is equivalent to `_.conforms` when `source` is
     * partially applied.
     *
     * @static
     * @memberOf _
     * @since 4.14.0
     * @category Lang
     * @param {Object} object The object to inspect.
     * @param {Object} source The object of property predicates to conform to.
     * @returns {boolean} Returns `true` if `object` conforms, else `false`.
     * @example
     *
     * var object = { 'a': 1, 'b': 2 };
     *
     * _.conformsTo(object, { 'b': function(n) { return n > 1; } });
     * // => true
     *
     * _.conformsTo(object, { 'b': function(n) { return n > 2; } });
     * // => false
     */
    function conformsTo(object, source) {
      return source == null || baseConformsTo(object, source, keys(source));
    }

    /**
     * Performs a
     * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
     * comparison between two values to determine if they are equivalent.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to compare.
     * @param {*} other The other value to compare.
     * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
     * @example
     *
     * var object = { 'a': 1 };
     * var other = { 'a': 1 };
     *
     * _.eq(object, object);
     * // => true
     *
     * _.eq(object, other);
     * // => false
     *
     * _.eq('a', 'a');
     * // => true
     *
     * _.eq('a', Object('a'));
     * // => false
     *
     * _.eq(NaN, NaN);
     * // => true
     */
    function eq(value, other) {
      return value === other || (value !== value && other !== other);
    }

    /**
     * Checks if `value` is greater than `other`.
     *
     * @static
     * @memberOf _
     * @since 3.9.0
     * @category Lang
     * @param {*} value The value to compare.
     * @param {*} other The other value to compare.
     * @returns {boolean} Returns `true` if `value` is greater than `other`,
     *  else `false`.
     * @see _.lt
     * @example
     *
     * _.gt(3, 1);
     * // => true
     *
     * _.gt(3, 3);
     * // => false
     *
     * _.gt(1, 3);
     * // => false
     */
    var gt = createRelationalOperation(baseGt);

    /**
     * Checks if `value` is greater than or equal to `other`.
     *
     * @static
     * @memberOf _
     * @since 3.9.0
     * @category Lang
     * @param {*} value The value to compare.
     * @param {*} other The other value to compare.
     * @returns {boolean} Returns `true` if `value` is greater than or equal to
     *  `other`, else `false`.
     * @see _.lte
     * @example
     *
     * _.gte(3, 1);
     * // => true
     *
     * _.gte(3, 3);
     * // => true
     *
     * _.gte(1, 3);
     * // => false
     */
    var gte = createRelationalOperation(function(value, other) {
      return value >= other;
    });

    /**
     * Checks if `value` is likely an `arguments` object.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is an `arguments` object,
     *  else `false`.
     * @example
     *
     * _.isArguments(function() { return arguments; }());
     * // => true
     *
     * _.isArguments([1, 2, 3]);
     * // => false
     */
    var isArguments = baseIsArguments(function() { return arguments; }()) ? baseIsArguments : function(value) {
      return isObjectLike(value) && hasOwnProperty.call(value, 'callee') &&
        !propertyIsEnumerable.call(value, 'callee');
    };

    /**
     * Checks if `value` is classified as an `Array` object.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is an array, else `false`.
     * @example
     *
     * _.isArray([1, 2, 3]);
     * // => true
     *
     * _.isArray(document.body.children);
     * // => false
     *
     * _.isArray('abc');
     * // => false
     *
     * _.isArray(_.noop);
     * // => false
     */
    var isArray = Array.isArray;

    /**
     * Checks if `value` is classified as an `ArrayBuffer` object.
     *
     * @static
     * @memberOf _
     * @since 4.3.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is an array buffer, else `false`.
     * @example
     *
     * _.isArrayBuffer(new ArrayBuffer(2));
     * // => true
     *
     * _.isArrayBuffer(new Array(2));
     * // => false
     */
    var isArrayBuffer = nodeIsArrayBuffer ? baseUnary(nodeIsArrayBuffer) : baseIsArrayBuffer;

    /**
     * Checks if `value` is array-like. A value is considered array-like if it's
     * not a function and has a `value.length` that's an integer greater than or
     * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is array-like, else `false`.
     * @example
     *
     * _.isArrayLike([1, 2, 3]);
     * // => true
     *
     * _.isArrayLike(document.body.children);
     * // => true
     *
     * _.isArrayLike('abc');
     * // => true
     *
     * _.isArrayLike(_.noop);
     * // => false
     */
    function isArrayLike(value) {
      return value != null && isLength(value.length) && !isFunction(value);
    }

    /**
     * This method is like `_.isArrayLike` except that it also checks if `value`
     * is an object.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is an array-like object,
     *  else `false`.
     * @example
     *
     * _.isArrayLikeObject([1, 2, 3]);
     * // => true
     *
     * _.isArrayLikeObject(document.body.children);
     * // => true
     *
     * _.isArrayLikeObject('abc');
     * // => false
     *
     * _.isArrayLikeObject(_.noop);
     * // => false
     */
    function isArrayLikeObject(value) {
      return isObjectLike(value) && isArrayLike(value);
    }

    /**
     * Checks if `value` is classified as a boolean primitive or object.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a boolean, else `false`.
     * @example
     *
     * _.isBoolean(false);
     * // => true
     *
     * _.isBoolean(null);
     * // => false
     */
    function isBoolean(value) {
      return value === true || value === false ||
        (isObjectLike(value) && baseGetTag(value) == boolTag);
    }

    /**
     * Checks if `value` is a buffer.
     *
     * @static
     * @memberOf _
     * @since 4.3.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a buffer, else `false`.
     * @example
     *
     * _.isBuffer(new Buffer(2));
     * // => true
     *
     * _.isBuffer(new Uint8Array(2));
     * // => false
     */
    var isBuffer = nativeIsBuffer || stubFalse;

    /**
     * Checks if `value` is classified as a `Date` object.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a date object, else `false`.
     * @example
     *
     * _.isDate(new Date);
     * // => true
     *
     * _.isDate('Mon April 23 2012');
     * // => false
     */
    var isDate = nodeIsDate ? baseUnary(nodeIsDate) : baseIsDate;

    /**
     * Checks if `value` is likely a DOM element.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a DOM element, else `false`.
     * @example
     *
     * _.isElement(document.body);
     * // => true
     *
     * _.isElement('<body>');
     * // => false
     */
    function isElement(value) {
      return isObjectLike(value) && value.nodeType === 1 && !isPlainObject(value);
    }

    /**
     * Checks if `value` is an empty object, collection, map, or set.
     *
     * Objects are considered empty if they have no own enumerable string keyed
     * properties.
     *
     * Array-like values such as `arguments` objects, arrays, buffers, strings, or
     * jQuery-like collections are considered empty if they have a `length` of `0`.
     * Similarly, maps and sets are considered empty if they have a `size` of `0`.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is empty, else `false`.
     * @example
     *
     * _.isEmpty(null);
     * // => true
     *
     * _.isEmpty(true);
     * // => true
     *
     * _.isEmpty(1);
     * // => true
     *
     * _.isEmpty([1, 2, 3]);
     * // => false
     *
     * _.isEmpty({ 'a': 1 });
     * // => false
     */
    function isEmpty(value) {
      if (value == null) {
        return true;
      }
      if (isArrayLike(value) &&
          (isArray(value) || typeof value == 'string' || typeof value.splice == 'function' ||
            isBuffer(value) || isTypedArray(value) || isArguments(value))) {
        return !value.length;
      }
      var tag = getTag(value);
      if (tag == mapTag || tag == setTag) {
        return !value.size;
      }
      if (isPrototype(value)) {
        return !baseKeys(value).length;
      }
      for (var key in value) {
        if (hasOwnProperty.call(value, key)) {
          return false;
        }
      }
      return true;
    }

    /**
     * Performs a deep comparison between two values to determine if they are
     * equivalent.
     *
     * **Note:** This method supports comparing arrays, array buffers, booleans,
     * date objects, error objects, maps, numbers, `Object` objects, regexes,
     * sets, strings, symbols, and typed arrays. `Object` objects are compared
     * by their own, not inherited, enumerable properties. Functions and DOM
     * nodes are compared by strict equality, i.e. `===`.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Lang
     * @param {*} value The value to compare.
     * @param {*} other The other value to compare.
     * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
     * @example
     *
     * var object = { 'a': 1 };
     * var other = { 'a': 1 };
     *
     * _.isEqual(object, other);
     * // => true
     *
     * object === other;
     * // => false
     */
    function isEqual(value, other) {
      return baseIsEqual(value, other);
    }

    /**
     * This method is like `_.isEqual` except that it accepts `customizer` which
     * is invoked to compare values. If `customizer` returns `undefined`, comparisons
     * are handled by the method instead. The `customizer` is invoked with up to
     * six arguments: (objValue, othValue [, index|key, object, other, stack]).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to compare.
     * @param {*} other The other value to compare.
     * @param {Function} [customizer] The function to customize comparisons.
     * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
     * @example
     *
     * function isGreeting(value) {
     *   return /^h(?:i|ello)$/.test(value);
     * }
     *
     * function customizer(objValue, othValue) {
     *   if (isGreeting(objValue) && isGreeting(othValue)) {
     *     return true;
     *   }
     * }
     *
     * var array = ['hello', 'goodbye'];
     * var other = ['hi', 'goodbye'];
     *
     * _.isEqualWith(array, other, customizer);
     * // => true
     */
    function isEqualWith(value, other, customizer) {
      customizer = typeof customizer == 'function' ? customizer : undefined;
      var result = customizer ? customizer(value, other) : undefined;
      return result === undefined ? baseIsEqual(value, other, undefined, customizer) : !!result;
    }

    /**
     * Checks if `value` is an `Error`, `EvalError`, `RangeError`, `ReferenceError`,
     * `SyntaxError`, `TypeError`, or `URIError` object.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is an error object, else `false`.
     * @example
     *
     * _.isError(new Error);
     * // => true
     *
     * _.isError(Error);
     * // => false
     */
    function isError(value) {
      if (!isObjectLike(value)) {
        return false;
      }
      var tag = baseGetTag(value);
      return tag == errorTag || tag == domExcTag ||
        (typeof value.message == 'string' && typeof value.name == 'string' && !isPlainObject(value));
    }

    /**
     * Checks if `value` is a finite primitive number.
     *
     * **Note:** This method is based on
     * [`Number.isFinite`](https://mdn.io/Number/isFinite).
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a finite number, else `false`.
     * @example
     *
     * _.isFinite(3);
     * // => true
     *
     * _.isFinite(Number.MIN_VALUE);
     * // => true
     *
     * _.isFinite(Infinity);
     * // => false
     *
     * _.isFinite('3');
     * // => false
     */
    function isFinite(value) {
      return typeof value == 'number' && nativeIsFinite(value);
    }

    /**
     * Checks if `value` is classified as a `Function` object.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a function, else `false`.
     * @example
     *
     * _.isFunction(_);
     * // => true
     *
     * _.isFunction(/abc/);
     * // => false
     */
    function isFunction(value) {
      if (!isObject(value)) {
        return false;
      }
      // The use of `Object#toString` avoids issues with the `typeof` operator
      // in Safari 9 which returns 'object' for typed arrays and other constructors.
      var tag = baseGetTag(value);
      return tag == funcTag || tag == genTag || tag == asyncTag || tag == proxyTag;
    }

    /**
     * Checks if `value` is an integer.
     *
     * **Note:** This method is based on
     * [`Number.isInteger`](https://mdn.io/Number/isInteger).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is an integer, else `false`.
     * @example
     *
     * _.isInteger(3);
     * // => true
     *
     * _.isInteger(Number.MIN_VALUE);
     * // => false
     *
     * _.isInteger(Infinity);
     * // => false
     *
     * _.isInteger('3');
     * // => false
     */
    function isInteger(value) {
      return typeof value == 'number' && value == toInteger(value);
    }

    /**
     * Checks if `value` is a valid array-like length.
     *
     * **Note:** This method is loosely based on
     * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.
     * @example
     *
     * _.isLength(3);
     * // => true
     *
     * _.isLength(Number.MIN_VALUE);
     * // => false
     *
     * _.isLength(Infinity);
     * // => false
     *
     * _.isLength('3');
     * // => false
     */
    function isLength(value) {
      return typeof value == 'number' &&
        value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;
    }

    /**
     * Checks if `value` is the
     * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types)
     * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is an object, else `false`.
     * @example
     *
     * _.isObject({});
     * // => true
     *
     * _.isObject([1, 2, 3]);
     * // => true
     *
     * _.isObject(_.noop);
     * // => true
     *
     * _.isObject(null);
     * // => false
     */
    function isObject(value) {
      var type = typeof value;
      return value != null && (type == 'object' || type == 'function');
    }

    /**
     * Checks if `value` is object-like. A value is object-like if it's not `null`
     * and has a `typeof` result of "object".
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is object-like, else `false`.
     * @example
     *
     * _.isObjectLike({});
     * // => true
     *
     * _.isObjectLike([1, 2, 3]);
     * // => true
     *
     * _.isObjectLike(_.noop);
     * // => false
     *
     * _.isObjectLike(null);
     * // => false
     */
    function isObjectLike(value) {
      return value != null && typeof value == 'object';
    }

    /**
     * Checks if `value` is classified as a `Map` object.
     *
     * @static
     * @memberOf _
     * @since 4.3.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a map, else `false`.
     * @example
     *
     * _.isMap(new Map);
     * // => true
     *
     * _.isMap(new WeakMap);
     * // => false
     */
    var isMap = nodeIsMap ? baseUnary(nodeIsMap) : baseIsMap;

    /**
     * Performs a partial deep comparison between `object` and `source` to
     * determine if `object` contains equivalent property values.
     *
     * **Note:** This method is equivalent to `_.matches` when `source` is
     * partially applied.
     *
     * Partial comparisons will match empty array and empty object `source`
     * values against any array or object value, respectively. See `_.isEqual`
     * for a list of supported value comparisons.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Lang
     * @param {Object} object The object to inspect.
     * @param {Object} source The object of property values to match.
     * @returns {boolean} Returns `true` if `object` is a match, else `false`.
     * @example
     *
     * var object = { 'a': 1, 'b': 2 };
     *
     * _.isMatch(object, { 'b': 2 });
     * // => true
     *
     * _.isMatch(object, { 'b': 1 });
     * // => false
     */
    function isMatch(object, source) {
      return object === source || baseIsMatch(object, source, getMatchData(source));
    }

    /**
     * This method is like `_.isMatch` except that it accepts `customizer` which
     * is invoked to compare values. If `customizer` returns `undefined`, comparisons
     * are handled by the method instead. The `customizer` is invoked with five
     * arguments: (objValue, srcValue, index|key, object, source).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {Object} object The object to inspect.
     * @param {Object} source The object of property values to match.
     * @param {Function} [customizer] The function to customize comparisons.
     * @returns {boolean} Returns `true` if `object` is a match, else `false`.
     * @example
     *
     * function isGreeting(value) {
     *   return /^h(?:i|ello)$/.test(value);
     * }
     *
     * function customizer(objValue, srcValue) {
     *   if (isGreeting(objValue) && isGreeting(srcValue)) {
     *     return true;
     *   }
     * }
     *
     * var object = { 'greeting': 'hello' };
     * var source = { 'greeting': 'hi' };
     *
     * _.isMatchWith(object, source, customizer);
     * // => true
     */
    function isMatchWith(object, source, customizer) {
      customizer = typeof customizer == 'function' ? customizer : undefined;
      return baseIsMatch(object, source, getMatchData(source), customizer);
    }

    /**
     * Checks if `value` is `NaN`.
     *
     * **Note:** This method is based on
     * [`Number.isNaN`](https://mdn.io/Number/isNaN) and is not the same as
     * global [`isNaN`](https://mdn.io/isNaN) which returns `true` for
     * `undefined` and other non-number values.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`.
     * @example
     *
     * _.isNaN(NaN);
     * // => true
     *
     * _.isNaN(new Number(NaN));
     * // => true
     *
     * isNaN(undefined);
     * // => true
     *
     * _.isNaN(undefined);
     * // => false
     */
    function isNaN(value) {
      // An `NaN` primitive is the only value that is not equal to itself.
      // Perform the `toStringTag` check first to avoid errors with some
      // ActiveX objects in IE.
      return isNumber(value) && value != +value;
    }

    /**
     * Checks if `value` is a pristine native function.
     *
     * **Note:** This method can't reliably detect native functions in the presence
     * of the core-js package because core-js circumvents this kind of detection.
     * Despite multiple requests, the core-js maintainer has made it clear: any
     * attempt to fix the detection will be obstructed. As a result, we're left
     * with little choice but to throw an error. Unfortunately, this also affects
     * packages, like [babel-polyfill](https://www.npmjs.com/package/babel-polyfill),
     * which rely on core-js.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a native function,
     *  else `false`.
     * @example
     *
     * _.isNative(Array.prototype.push);
     * // => true
     *
     * _.isNative(_);
     * // => false
     */
    function isNative(value) {
      if (isMaskable(value)) {
        throw new Error(CORE_ERROR_TEXT);
      }
      return baseIsNative(value);
    }

    /**
     * Checks if `value` is `null`.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is `null`, else `false`.
     * @example
     *
     * _.isNull(null);
     * // => true
     *
     * _.isNull(void 0);
     * // => false
     */
    function isNull(value) {
      return value === null;
    }

    /**
     * Checks if `value` is `null` or `undefined`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is nullish, else `false`.
     * @example
     *
     * _.isNil(null);
     * // => true
     *
     * _.isNil(void 0);
     * // => true
     *
     * _.isNil(NaN);
     * // => false
     */
    function isNil(value) {
      return value == null;
    }

    /**
     * Checks if `value` is classified as a `Number` primitive or object.
     *
     * **Note:** To exclude `Infinity`, `-Infinity`, and `NaN`, which are
     * classified as numbers, use the `_.isFinite` method.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a number, else `false`.
     * @example
     *
     * _.isNumber(3);
     * // => true
     *
     * _.isNumber(Number.MIN_VALUE);
     * // => true
     *
     * _.isNumber(Infinity);
     * // => true
     *
     * _.isNumber('3');
     * // => false
     */
    function isNumber(value) {
      return typeof value == 'number' ||
        (isObjectLike(value) && baseGetTag(value) == numberTag);
    }

    /**
     * Checks if `value` is a plain object, that is, an object created by the
     * `Object` constructor or one with a `[[Prototype]]` of `null`.
     *
     * @static
     * @memberOf _
     * @since 0.8.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a plain object, else `false`.
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     * }
     *
     * _.isPlainObject(new Foo);
     * // => false
     *
     * _.isPlainObject([1, 2, 3]);
     * // => false
     *
     * _.isPlainObject({ 'x': 0, 'y': 0 });
     * // => true
     *
     * _.isPlainObject(Object.create(null));
     * // => true
     */
    function isPlainObject(value) {
      if (!isObjectLike(value) || baseGetTag(value) != objectTag) {
        return false;
      }
      var proto = getPrototype(value);
      if (proto === null) {
        return true;
      }
      var Ctor = hasOwnProperty.call(proto, 'constructor') && proto.constructor;
      return typeof Ctor == 'function' && Ctor instanceof Ctor &&
        funcToString.call(Ctor) == objectCtorString;
    }

    /**
     * Checks if `value` is classified as a `RegExp` object.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a regexp, else `false`.
     * @example
     *
     * _.isRegExp(/abc/);
     * // => true
     *
     * _.isRegExp('/abc/');
     * // => false
     */
    var isRegExp = nodeIsRegExp ? baseUnary(nodeIsRegExp) : baseIsRegExp;

    /**
     * Checks if `value` is a safe integer. An integer is safe if it's an IEEE-754
     * double precision number which isn't the result of a rounded unsafe integer.
     *
     * **Note:** This method is based on
     * [`Number.isSafeInteger`](https://mdn.io/Number/isSafeInteger).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a safe integer, else `false`.
     * @example
     *
     * _.isSafeInteger(3);
     * // => true
     *
     * _.isSafeInteger(Number.MIN_VALUE);
     * // => false
     *
     * _.isSafeInteger(Infinity);
     * // => false
     *
     * _.isSafeInteger('3');
     * // => false
     */
    function isSafeInteger(value) {
      return isInteger(value) && value >= -MAX_SAFE_INTEGER && value <= MAX_SAFE_INTEGER;
    }

    /**
     * Checks if `value` is classified as a `Set` object.
     *
     * @static
     * @memberOf _
     * @since 4.3.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a set, else `false`.
     * @example
     *
     * _.isSet(new Set);
     * // => true
     *
     * _.isSet(new WeakSet);
     * // => false
     */
    var isSet = nodeIsSet ? baseUnary(nodeIsSet) : baseIsSet;

    /**
     * Checks if `value` is classified as a `String` primitive or object.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a string, else `false`.
     * @example
     *
     * _.isString('abc');
     * // => true
     *
     * _.isString(1);
     * // => false
     */
    function isString(value) {
      return typeof value == 'string' ||
        (!isArray(value) && isObjectLike(value) && baseGetTag(value) == stringTag);
    }

    /**
     * Checks if `value` is classified as a `Symbol` primitive or object.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a symbol, else `false`.
     * @example
     *
     * _.isSymbol(Symbol.iterator);
     * // => true
     *
     * _.isSymbol('abc');
     * // => false
     */
    function isSymbol(value) {
      return typeof value == 'symbol' ||
        (isObjectLike(value) && baseGetTag(value) == symbolTag);
    }

    /**
     * Checks if `value` is classified as a typed array.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.
     * @example
     *
     * _.isTypedArray(new Uint8Array);
     * // => true
     *
     * _.isTypedArray([]);
     * // => false
     */
    var isTypedArray = nodeIsTypedArray ? baseUnary(nodeIsTypedArray) : baseIsTypedArray;

    /**
     * Checks if `value` is `undefined`.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is `undefined`, else `false`.
     * @example
     *
     * _.isUndefined(void 0);
     * // => true
     *
     * _.isUndefined(null);
     * // => false
     */
    function isUndefined(value) {
      return value === undefined;
    }

    /**
     * Checks if `value` is classified as a `WeakMap` object.
     *
     * @static
     * @memberOf _
     * @since 4.3.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a weak map, else `false`.
     * @example
     *
     * _.isWeakMap(new WeakMap);
     * // => true
     *
     * _.isWeakMap(new Map);
     * // => false
     */
    function isWeakMap(value) {
      return isObjectLike(value) && getTag(value) == weakMapTag;
    }

    /**
     * Checks if `value` is classified as a `WeakSet` object.
     *
     * @static
     * @memberOf _
     * @since 4.3.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a weak set, else `false`.
     * @example
     *
     * _.isWeakSet(new WeakSet);
     * // => true
     *
     * _.isWeakSet(new Set);
     * // => false
     */
    function isWeakSet(value) {
      return isObjectLike(value) && baseGetTag(value) == weakSetTag;
    }

    /**
     * Checks if `value` is less than `other`.
     *
     * @static
     * @memberOf _
     * @since 3.9.0
     * @category Lang
     * @param {*} value The value to compare.
     * @param {*} other The other value to compare.
     * @returns {boolean} Returns `true` if `value` is less than `other`,
     *  else `false`.
     * @see _.gt
     * @example
     *
     * _.lt(1, 3);
     * // => true
     *
     * _.lt(3, 3);
     * // => false
     *
     * _.lt(3, 1);
     * // => false
     */
    var lt = createRelationalOperation(baseLt);

    /**
     * Checks if `value` is less than or equal to `other`.
     *
     * @static
     * @memberOf _
     * @since 3.9.0
     * @category Lang
     * @param {*} value The value to compare.
     * @param {*} other The other value to compare.
     * @returns {boolean} Returns `true` if `value` is less than or equal to
     *  `other`, else `false`.
     * @see _.gte
     * @example
     *
     * _.lte(1, 3);
     * // => true
     *
     * _.lte(3, 3);
     * // => true
     *
     * _.lte(3, 1);
     * // => false
     */
    var lte = createRelationalOperation(function(value, other) {
      return value <= other;
    });

    /**
     * Converts `value` to an array.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Lang
     * @param {*} value The value to convert.
     * @returns {Array} Returns the converted array.
     * @example
     *
     * _.toArray({ 'a': 1, 'b': 2 });
     * // => [1, 2]
     *
     * _.toArray('abc');
     * // => ['a', 'b', 'c']
     *
     * _.toArray(1);
     * // => []
     *
     * _.toArray(null);
     * // => []
     */
    function toArray(value) {
      if (!value) {
        return [];
      }
      if (isArrayLike(value)) {
        return isString(value) ? stringToArray(value) : copyArray(value);
      }
      if (symIterator && value[symIterator]) {
        return iteratorToArray(value[symIterator]());
      }
      var tag = getTag(value),
          func = tag == mapTag ? mapToArray : (tag == setTag ? setToArray : values);

      return func(value);
    }

    /**
     * Converts `value` to a finite number.
     *
     * @static
     * @memberOf _
     * @since 4.12.0
     * @category Lang
     * @param {*} value The value to convert.
     * @returns {number} Returns the converted number.
     * @example
     *
     * _.toFinite(3.2);
     * // => 3.2
     *
     * _.toFinite(Number.MIN_VALUE);
     * // => 5e-324
     *
     * _.toFinite(Infinity);
     * // => 1.7976931348623157e+308
     *
     * _.toFinite('3.2');
     * // => 3.2
     */
    function toFinite(value) {
      if (!value) {
        return value === 0 ? value : 0;
      }
      value = toNumber(value);
      if (value === INFINITY || value === -INFINITY) {
        var sign = (value < 0 ? -1 : 1);
        return sign * MAX_INTEGER;
      }
      return value === value ? value : 0;
    }

    /**
     * Converts `value` to an integer.
     *
     * **Note:** This method is loosely based on
     * [`ToInteger`](http://www.ecma-international.org/ecma-262/7.0/#sec-tointeger).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to convert.
     * @returns {number} Returns the converted integer.
     * @example
     *
     * _.toInteger(3.2);
     * // => 3
     *
     * _.toInteger(Number.MIN_VALUE);
     * // => 0
     *
     * _.toInteger(Infinity);
     * // => 1.7976931348623157e+308
     *
     * _.toInteger('3.2');
     * // => 3
     */
    function toInteger(value) {
      var result = toFinite(value),
          remainder = result % 1;

      return result === result ? (remainder ? result - remainder : result) : 0;
    }

    /**
     * Converts `value` to an integer suitable for use as the length of an
     * array-like object.
     *
     * **Note:** This method is based on
     * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to convert.
     * @returns {number} Returns the converted integer.
     * @example
     *
     * _.toLength(3.2);
     * // => 3
     *
     * _.toLength(Number.MIN_VALUE);
     * // => 0
     *
     * _.toLength(Infinity);
     * // => 4294967295
     *
     * _.toLength('3.2');
     * // => 3
     */
    function toLength(value) {
      return value ? baseClamp(toInteger(value), 0, MAX_ARRAY_LENGTH) : 0;
    }

    /**
     * Converts `value` to a number.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to process.
     * @returns {number} Returns the number.
     * @example
     *
     * _.toNumber(3.2);
     * // => 3.2
     *
     * _.toNumber(Number.MIN_VALUE);
     * // => 5e-324
     *
     * _.toNumber(Infinity);
     * // => Infinity
     *
     * _.toNumber('3.2');
     * // => 3.2
     */
    function toNumber(value) {
      if (typeof value == 'number') {
        return value;
      }
      if (isSymbol(value)) {
        return NAN;
      }
      if (isObject(value)) {
        var other = typeof value.valueOf == 'function' ? value.valueOf() : value;
        value = isObject(other) ? (other + '') : other;
      }
      if (typeof value != 'string') {
        return value === 0 ? value : +value;
      }
      value = value.replace(reTrim, '');
      var isBinary = reIsBinary.test(value);
      return (isBinary || reIsOctal.test(value))
        ? freeParseInt(value.slice(2), isBinary ? 2 : 8)
        : (reIsBadHex.test(value) ? NAN : +value);
    }

    /**
     * Converts `value` to a plain object flattening inherited enumerable string
     * keyed properties of `value` to own properties of the plain object.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Lang
     * @param {*} value The value to convert.
     * @returns {Object} Returns the converted plain object.
     * @example
     *
     * function Foo() {
     *   this.b = 2;
     * }
     *
     * Foo.prototype.c = 3;
     *
     * _.assign({ 'a': 1 }, new Foo);
     * // => { 'a': 1, 'b': 2 }
     *
     * _.assign({ 'a': 1 }, _.toPlainObject(new Foo));
     * // => { 'a': 1, 'b': 2, 'c': 3 }
     */
    function toPlainObject(value) {
      return copyObject(value, keysIn(value));
    }

    /**
     * Converts `value` to a safe integer. A safe integer can be compared and
     * represented correctly.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to convert.
     * @returns {number} Returns the converted integer.
     * @example
     *
     * _.toSafeInteger(3.2);
     * // => 3
     *
     * _.toSafeInteger(Number.MIN_VALUE);
     * // => 0
     *
     * _.toSafeInteger(Infinity);
     * // => 9007199254740991
     *
     * _.toSafeInteger('3.2');
     * // => 3
     */
    function toSafeInteger(value) {
      return value
        ? baseClamp(toInteger(value), -MAX_SAFE_INTEGER, MAX_SAFE_INTEGER)
        : (value === 0 ? value : 0);
    }

    /**
     * Converts `value` to a string. An empty string is returned for `null`
     * and `undefined` values. The sign of `-0` is preserved.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to convert.
     * @returns {string} Returns the converted string.
     * @example
     *
     * _.toString(null);
     * // => ''
     *
     * _.toString(-0);
     * // => '-0'
     *
     * _.toString([1, 2, 3]);
     * // => '1,2,3'
     */
    function toString(value) {
      return value == null ? '' : baseToString(value);
    }

    /*------------------------------------------------------------------------*/

    /**
     * Assigns own enumerable string keyed properties of source objects to the
     * destination object. Source objects are applied from left to right.
     * Subsequent sources overwrite property assignments of previous sources.
     *
     * **Note:** This method mutates `object` and is loosely based on
     * [`Object.assign`](https://mdn.io/Object/assign).
     *
     * @static
     * @memberOf _
     * @since 0.10.0
     * @category Object
     * @param {Object} object The destination object.
     * @param {...Object} [sources] The source objects.
     * @returns {Object} Returns `object`.
     * @see _.assignIn
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     * }
     *
     * function Bar() {
     *   this.c = 3;
     * }
     *
     * Foo.prototype.b = 2;
     * Bar.prototype.d = 4;
     *
     * _.assign({ 'a': 0 }, new Foo, new Bar);
     * // => { 'a': 1, 'c': 3 }
     */
    var assign = createAssigner(function(object, source) {
      if (isPrototype(source) || isArrayLike(source)) {
        copyObject(source, keys(source), object);
        return;
      }
      for (var key in source) {
        if (hasOwnProperty.call(source, key)) {
          assignValue(object, key, source[key]);
        }
      }
    });

    /**
     * This method is like `_.assign` except that it iterates over own and
     * inherited source properties.
     *
     * **Note:** This method mutates `object`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @alias extend
     * @category Object
     * @param {Object} object The destination object.
     * @param {...Object} [sources] The source objects.
     * @returns {Object} Returns `object`.
     * @see _.assign
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     * }
     *
     * function Bar() {
     *   this.c = 3;
     * }
     *
     * Foo.prototype.b = 2;
     * Bar.prototype.d = 4;
     *
     * _.assignIn({ 'a': 0 }, new Foo, new Bar);
     * // => { 'a': 1, 'b': 2, 'c': 3, 'd': 4 }
     */
    var assignIn = createAssigner(function(object, source) {
      copyObject(source, keysIn(source), object);
    });

    /**
     * This method is like `_.assignIn` except that it accepts `customizer`
     * which is invoked to produce the assigned values. If `customizer` returns
     * `undefined`, assignment is handled by the method instead. The `customizer`
     * is invoked with five arguments: (objValue, srcValue, key, object, source).
     *
     * **Note:** This method mutates `object`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @alias extendWith
     * @category Object
     * @param {Object} object The destination object.
     * @param {...Object} sources The source objects.
     * @param {Function} [customizer] The function to customize assigned values.
     * @returns {Object} Returns `object`.
     * @see _.assignWith
     * @example
     *
     * function customizer(objValue, srcValue) {
     *   return _.isUndefined(objValue) ? srcValue : objValue;
     * }
     *
     * var defaults = _.partialRight(_.assignInWith, customizer);
     *
     * defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });
     * // => { 'a': 1, 'b': 2 }
     */
    var assignInWith = createAssigner(function(object, source, srcIndex, customizer) {
      copyObject(source, keysIn(source), object, customizer);
    });

    /**
     * This method is like `_.assign` except that it accepts `customizer`
     * which is invoked to produce the assigned values. If `customizer` returns
     * `undefined`, assignment is handled by the method instead. The `customizer`
     * is invoked with five arguments: (objValue, srcValue, key, object, source).
     *
     * **Note:** This method mutates `object`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Object
     * @param {Object} object The destination object.
     * @param {...Object} sources The source objects.
     * @param {Function} [customizer] The function to customize assigned values.
     * @returns {Object} Returns `object`.
     * @see _.assignInWith
     * @example
     *
     * function customizer(objValue, srcValue) {
     *   return _.isUndefined(objValue) ? srcValue : objValue;
     * }
     *
     * var defaults = _.partialRight(_.assignWith, customizer);
     *
     * defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });
     * // => { 'a': 1, 'b': 2 }
     */
    var assignWith = createAssigner(function(object, source, srcIndex, customizer) {
      copyObject(source, keys(source), object, customizer);
    });

    /**
     * Creates an array of values corresponding to `paths` of `object`.
     *
     * @static
     * @memberOf _
     * @since 1.0.0
     * @category Object
     * @param {Object} object The object to iterate over.
     * @param {...(string|string[])} [paths] The property paths to pick.
     * @returns {Array} Returns the picked values.
     * @example
     *
     * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] };
     *
     * _.at(object, ['a[0].b.c', 'a[1]']);
     * // => [3, 4]
     */
    var at = flatRest(baseAt);

    /**
     * Creates an object that inherits from the `prototype` object. If a
     * `properties` object is given, its own enumerable string keyed properties
     * are assigned to the created object.
     *
     * @static
     * @memberOf _
     * @since 2.3.0
     * @category Object
     * @param {Object} prototype The object to inherit from.
     * @param {Object} [properties] The properties to assign to the object.
     * @returns {Object} Returns the new object.
     * @example
     *
     * function Shape() {
     *   this.x = 0;
     *   this.y = 0;
     * }
     *
     * function Circle() {
     *   Shape.call(this);
     * }
     *
     * Circle.prototype = _.create(Shape.prototype, {
     *   'constructor': Circle
     * });
     *
     * var circle = new Circle;
     * circle instanceof Circle;
     * // => true
     *
     * circle instanceof Shape;
     * // => true
     */
    function create(prototype, properties) {
      var result = baseCreate(prototype);
      return properties == null ? result : baseAssign(result, properties);
    }

    /**
     * Assigns own and inherited enumerable string keyed properties of source
     * objects to the destination object for all destination properties that
     * resolve to `undefined`. Source objects are applied from left to right.
     * Once a property is set, additional values of the same property are ignored.
     *
     * **Note:** This method mutates `object`.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Object
     * @param {Object} object The destination object.
     * @param {...Object} [sources] The source objects.
     * @returns {Object} Returns `object`.
     * @see _.defaultsDeep
     * @example
     *
     * _.defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });
     * // => { 'a': 1, 'b': 2 }
     */
    var defaults = baseRest(function(args) {
      args.push(undefined, customDefaultsAssignIn);
      return apply(assignInWith, undefined, args);
    });

    /**
     * This method is like `_.defaults` except that it recursively assigns
     * default properties.
     *
     * **Note:** This method mutates `object`.
     *
     * @static
     * @memberOf _
     * @since 3.10.0
     * @category Object
     * @param {Object} object The destination object.
     * @param {...Object} [sources] The source objects.
     * @returns {Object} Returns `object`.
     * @see _.defaults
     * @example
     *
     * _.defaultsDeep({ 'a': { 'b': 2 } }, { 'a': { 'b': 1, 'c': 3 } });
     * // => { 'a': { 'b': 2, 'c': 3 } }
     */
    var defaultsDeep = baseRest(function(args) {
      args.push(undefined, customDefaultsMerge);
      return apply(mergeWith, undefined, args);
    });

    /**
     * This method is like `_.find` except that it returns the key of the first
     * element `predicate` returns truthy for instead of the element itself.
     *
     * @static
     * @memberOf _
     * @since 1.1.0
     * @category Object
     * @param {Object} object The object to inspect.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @returns {string|undefined} Returns the key of the matched element,
     *  else `undefined`.
     * @example
     *
     * var users = {
     *   'barney':  { 'age': 36, 'active': true },
     *   'fred':    { 'age': 40, 'active': false },
     *   'pebbles': { 'age': 1,  'active': true }
     * };
     *
     * _.findKey(users, function(o) { return o.age < 40; });
     * // => 'barney' (iteration order is not guaranteed)
     *
     * // The `_.matches` iteratee shorthand.
     * _.findKey(users, { 'age': 1, 'active': true });
     * // => 'pebbles'
     *
     * // The `_.matchesProperty` iteratee shorthand.
     * _.findKey(users, ['active', false]);
     * // => 'fred'
     *
     * // The `_.property` iteratee shorthand.
     * _.findKey(users, 'active');
     * // => 'barney'
     */
    function findKey(object, predicate) {
      return baseFindKey(object, getIteratee(predicate, 3), baseForOwn);
    }

    /**
     * This method is like `_.findKey` except that it iterates over elements of
     * a collection in the opposite order.
     *
     * @static
     * @memberOf _
     * @since 2.0.0
     * @category Object
     * @param {Object} object The object to inspect.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @returns {string|undefined} Returns the key of the matched element,
     *  else `undefined`.
     * @example
     *
     * var users = {
     *   'barney':  { 'age': 36, 'active': true },
     *   'fred':    { 'age': 40, 'active': false },
     *   'pebbles': { 'age': 1,  'active': true }
     * };
     *
     * _.findLastKey(users, function(o) { return o.age < 40; });
     * // => returns 'pebbles' assuming `_.findKey` returns 'barney'
     *
     * // The `_.matches` iteratee shorthand.
     * _.findLastKey(users, { 'age': 36, 'active': true });
     * // => 'barney'
     *
     * // The `_.matchesProperty` iteratee shorthand.
     * _.findLastKey(users, ['active', false]);
     * // => 'fred'
     *
     * // The `_.property` iteratee shorthand.
     * _.findLastKey(users, 'active');
     * // => 'pebbles'
     */
    function findLastKey(object, predicate) {
      return baseFindKey(object, getIteratee(predicate, 3), baseForOwnRight);
    }

    /**
     * Iterates over own and inherited enumerable string keyed properties of an
     * object and invokes `iteratee` for each property. The iteratee is invoked
     * with three arguments: (value, key, object). Iteratee functions may exit
     * iteration early by explicitly returning `false`.
     *
     * @static
     * @memberOf _
     * @since 0.3.0
     * @category Object
     * @param {Object} object The object to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @returns {Object} Returns `object`.
     * @see _.forInRight
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     *   this.b = 2;
     * }
     *
     * Foo.prototype.c = 3;
     *
     * _.forIn(new Foo, function(value, key) {
     *   console.log(key);
     * });
     * // => Logs 'a', 'b', then 'c' (iteration order is not guaranteed).
     */
    function forIn(object, iteratee) {
      return object == null
        ? object
        : baseFor(object, getIteratee(iteratee, 3), keysIn);
    }

    /**
     * This method is like `_.forIn` except that it iterates over properties of
     * `object` in the opposite order.
     *
     * @static
     * @memberOf _
     * @since 2.0.0
     * @category Object
     * @param {Object} object The object to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @returns {Object} Returns `object`.
     * @see _.forIn
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     *   this.b = 2;
     * }
     *
     * Foo.prototype.c = 3;
     *
     * _.forInRight(new Foo, function(value, key) {
     *   console.log(key);
     * });
     * // => Logs 'c', 'b', then 'a' assuming `_.forIn` logs 'a', 'b', then 'c'.
     */
    function forInRight(object, iteratee) {
      return object == null
        ? object
        : baseForRight(object, getIteratee(iteratee, 3), keysIn);
    }

    /**
     * Iterates over own enumerable string keyed properties of an object and
     * invokes `iteratee` for each property. The iteratee is invoked with three
     * arguments: (value, key, object). Iteratee functions may exit iteration
     * early by explicitly returning `false`.
     *
     * @static
     * @memberOf _
     * @since 0.3.0
     * @category Object
     * @param {Object} object The object to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @returns {Object} Returns `object`.
     * @see _.forOwnRight
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     *   this.b = 2;
     * }
     *
     * Foo.prototype.c = 3;
     *
     * _.forOwn(new Foo, function(value, key) {
     *   console.log(key);
     * });
     * // => Logs 'a' then 'b' (iteration order is not guaranteed).
     */
    function forOwn(object, iteratee) {
      return object && baseForOwn(object, getIteratee(iteratee, 3));
    }

    /**
     * This method is like `_.forOwn` except that it iterates over properties of
     * `object` in the opposite order.
     *
     * @static
     * @memberOf _
     * @since 2.0.0
     * @category Object
     * @param {Object} object The object to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @returns {Object} Returns `object`.
     * @see _.forOwn
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     *   this.b = 2;
     * }
     *
     * Foo.prototype.c = 3;
     *
     * _.forOwnRight(new Foo, function(value, key) {
     *   console.log(key);
     * });
     * // => Logs 'b' then 'a' assuming `_.forOwn` logs 'a' then 'b'.
     */
    function forOwnRight(object, iteratee) {
      return object && baseForOwnRight(object, getIteratee(iteratee, 3));
    }

    /**
     * Creates an array of function property names from own enumerable properties
     * of `object`.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Object
     * @param {Object} object The object to inspect.
     * @returns {Array} Returns the function names.
     * @see _.functionsIn
     * @example
     *
     * function Foo() {
     *   this.a = _.constant('a');
     *   this.b = _.constant('b');
     * }
     *
     * Foo.prototype.c = _.constant('c');
     *
     * _.functions(new Foo);
     * // => ['a', 'b']
     */
    function functions(object) {
      return object == null ? [] : baseFunctions(object, keys(object));
    }

    /**
     * Creates an array of function property names from own and inherited
     * enumerable properties of `object`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Object
     * @param {Object} object The object to inspect.
     * @returns {Array} Returns the function names.
     * @see _.functions
     * @example
     *
     * function Foo() {
     *   this.a = _.constant('a');
     *   this.b = _.constant('b');
     * }
     *
     * Foo.prototype.c = _.constant('c');
     *
     * _.functionsIn(new Foo);
     * // => ['a', 'b', 'c']
     */
    function functionsIn(object) {
      return object == null ? [] : baseFunctions(object, keysIn(object));
    }

    /**
     * Gets the value at `path` of `object`. If the resolved value is
     * `undefined`, the `defaultValue` is returned in its place.
     *
     * @static
     * @memberOf _
     * @since 3.7.0
     * @category Object
     * @param {Object} object The object to query.
     * @param {Array|string} path The path of the property to get.
     * @param {*} [defaultValue] The value returned for `undefined` resolved values.
     * @returns {*} Returns the resolved value.
     * @example
     *
     * var object = { 'a': [{ 'b': { 'c': 3 } }] };
     *
     * _.get(object, 'a[0].b.c');
     * // => 3
     *
     * _.get(object, ['a', '0', 'b', 'c']);
     * // => 3
     *
     * _.get(object, 'a.b.c', 'default');
     * // => 'default'
     */
    function get(object, path, defaultValue) {
      var result = object == null ? undefined : baseGet(object, path);
      return result === undefined ? defaultValue : result;
    }

    /**
     * Checks if `path` is a direct property of `object`.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Object
     * @param {Object} object The object to query.
     * @param {Array|string} path The path to check.
     * @returns {boolean} Returns `true` if `path` exists, else `false`.
     * @example
     *
     * var object = { 'a': { 'b': 2 } };
     * var other = _.create({ 'a': _.create({ 'b': 2 }) });
     *
     * _.has(object, 'a');
     * // => true
     *
     * _.has(object, 'a.b');
     * // => true
     *
     * _.has(object, ['a', 'b']);
     * // => true
     *
     * _.has(other, 'a');
     * // => false
     */
    function has(object, path) {
      return object != null && hasPath(object, path, baseHas);
    }

    /**
     * Checks if `path` is a direct or inherited property of `object`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Object
     * @param {Object} object The object to query.
     * @param {Array|string} path The path to check.
     * @returns {boolean} Returns `true` if `path` exists, else `false`.
     * @example
     *
     * var object = _.create({ 'a': _.create({ 'b': 2 }) });
     *
     * _.hasIn(object, 'a');
     * // => true
     *
     * _.hasIn(object, 'a.b');
     * // => true
     *
     * _.hasIn(object, ['a', 'b']);
     * // => true
     *
     * _.hasIn(object, 'b');
     * // => false
     */
    function hasIn(object, path) {
      return object != null && hasPath(object, path, baseHasIn);
    }

    /**
     * Creates an object composed of the inverted keys and values of `object`.
     * If `object` contains duplicate values, subsequent values overwrite
     * property assignments of previous values.
     *
     * @static
     * @memberOf _
     * @since 0.7.0
     * @category Object
     * @param {Object} object The object to invert.
     * @returns {Object} Returns the new inverted object.
     * @example
     *
     * var object = { 'a': 1, 'b': 2, 'c': 1 };
     *
     * _.invert(object);
     * // => { '1': 'c', '2': 'b' }
     */
    var invert = createInverter(function(result, value, key) {
      result[value] = key;
    }, constant(identity));

    /**
     * This method is like `_.invert` except that the inverted object is generated
     * from the results of running each element of `object` thru `iteratee`. The
     * corresponding inverted value of each inverted key is an array of keys
     * responsible for generating the inverted value. The iteratee is invoked
     * with one argument: (value).
     *
     * @static
     * @memberOf _
     * @since 4.1.0
     * @category Object
     * @param {Object} object The object to invert.
     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
     * @returns {Object} Returns the new inverted object.
     * @example
     *
     * var object = { 'a': 1, 'b': 2, 'c': 1 };
     *
     * _.invertBy(object);
     * // => { '1': ['a', 'c'], '2': ['b'] }
     *
     * _.invertBy(object, function(value) {
     *   return 'group' + value;
     * });
     * // => { 'group1': ['a', 'c'], 'group2': ['b'] }
     */
    var invertBy = createInverter(function(result, value, key) {
      if (hasOwnProperty.call(result, value)) {
        result[value].push(key);
      } else {
        result[value] = [key];
      }
    }, getIteratee);

    /**
     * Invokes the method at `path` of `object`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Object
     * @param {Object} object The object to query.
     * @param {Array|string} path The path of the method to invoke.
     * @param {...*} [args] The arguments to invoke the method with.
     * @returns {*} Returns the result of the invoked method.
     * @example
     *
     * var object = { 'a': [{ 'b': { 'c': [1, 2, 3, 4] } }] };
     *
     * _.invoke(object, 'a[0].b.c.slice', 1, 3);
     * // => [2, 3]
     */
    var invoke = baseRest(baseInvoke);

    /**
     * Creates an array of the own enumerable property names of `object`.
     *
     * **Note:** Non-object values are coerced to objects. See the
     * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)
     * for more details.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Object
     * @param {Object} object The object to query.
     * @returns {Array} Returns the array of property names.
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     *   this.b = 2;
     * }
     *
     * Foo.prototype.c = 3;
     *
     * _.keys(new Foo);
     * // => ['a', 'b'] (iteration order is not guaranteed)
     *
     * _.keys('hi');
     * // => ['0', '1']
     */
    function keys(object) {
      return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object);
    }

    /**
     * Creates an array of the own and inherited enumerable property names of `object`.
     *
     * **Note:** Non-object values are coerced to objects.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Object
     * @param {Object} object The object to query.
     * @returns {Array} Returns the array of property names.
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     *   this.b = 2;
     * }
     *
     * Foo.prototype.c = 3;
     *
     * _.keysIn(new Foo);
     * // => ['a', 'b', 'c'] (iteration order is not guaranteed)
     */
    function keysIn(object) {
      return isArrayLike(object) ? arrayLikeKeys(object, true) : baseKeysIn(object);
    }

    /**
     * The opposite of `_.mapValues`; this method creates an object with the
     * same values as `object` and keys generated by running each own enumerable
     * string keyed property of `object` thru `iteratee`. The iteratee is invoked
     * with three arguments: (value, key, object).
     *
     * @static
     * @memberOf _
     * @since 3.8.0
     * @category Object
     * @param {Object} object The object to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @returns {Object} Returns the new mapped object.
     * @see _.mapValues
     * @example
     *
     * _.mapKeys({ 'a': 1, 'b': 2 }, function(value, key) {
     *   return key + value;
     * });
     * // => { 'a1': 1, 'b2': 2 }
     */
    function mapKeys(object, iteratee) {
      var result = {};
      iteratee = getIteratee(iteratee, 3);

      baseForOwn(object, function(value, key, object) {
        baseAssignValue(result, iteratee(value, key, object), value);
      });
      return result;
    }

    /**
     * Creates an object with the same keys as `object` and values generated
     * by running each own enumerable string keyed property of `object` thru
     * `iteratee`. The iteratee is invoked with three arguments:
     * (value, key, object).
     *
     * @static
     * @memberOf _
     * @since 2.4.0
     * @category Object
     * @param {Object} object The object to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @returns {Object} Returns the new mapped object.
     * @see _.mapKeys
     * @example
     *
     * var users = {
     *   'fred':    { 'user': 'fred',    'age': 40 },
     *   'pebbles': { 'user': 'pebbles', 'age': 1 }
     * };
     *
     * _.mapValues(users, function(o) { return o.age; });
     * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed)
     *
     * // The `_.property` iteratee shorthand.
     * _.mapValues(users, 'age');
     * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed)
     */
    function mapValues(object, iteratee) {
      var result = {};
      iteratee = getIteratee(iteratee, 3);

      baseForOwn(object, function(value, key, object) {
        baseAssignValue(result, key, iteratee(value, key, object));
      });
      return result;
    }

    /**
     * This method is like `_.assign` except that it recursively merges own and
     * inherited enumerable string keyed properties of source objects into the
     * destination object. Source properties that resolve to `undefined` are
     * skipped if a destination value exists. Array and plain object properties
     * are merged recursively. Other objects and value types are overridden by
     * assignment. Source objects are applied from left to right. Subsequent
     * sources overwrite property assignments of previous sources.
     *
     * **Note:** This method mutates `object`.
     *
     * @static
     * @memberOf _
     * @since 0.5.0
     * @category Object
     * @param {Object} object The destination object.
     * @param {...Object} [sources] The source objects.
     * @returns {Object} Returns `object`.
     * @example
     *
     * var object = {
     *   'a': [{ 'b': 2 }, { 'd': 4 }]
     * };
     *
     * var other = {
     *   'a': [{ 'c': 3 }, { 'e': 5 }]
     * };
     *
     * _.merge(object, other);
     * // => { 'a': [{ 'b': 2, 'c': 3 }, { 'd': 4, 'e': 5 }] }
     */
    var merge = createAssigner(function(object, source, srcIndex) {
      baseMerge(object, source, srcIndex);
    });

    /**
     * This method is like `_.merge` except that it accepts `customizer` which
     * is invoked to produce the merged values of the destination and source
     * properties. If `customizer` returns `undefined`, merging is handled by the
     * method instead. The `customizer` is invoked with six arguments:
     * (objValue, srcValue, key, object, source, stack).
     *
     * **Note:** This method mutates `object`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Object
     * @param {Object} object The destination object.
     * @param {...Object} sources The source objects.
     * @param {Function} customizer The function to customize assigned values.
     * @returns {Object} Returns `object`.
     * @example
     *
     * function customizer(objValue, srcValue) {
     *   if (_.isArray(objValue)) {
     *     return objValue.concat(srcValue);
     *   }
     * }
     *
     * var object = { 'a': [1], 'b': [2] };
     * var other = { 'a': [3], 'b': [4] };
     *
     * _.mergeWith(object, other, customizer);
     * // => { 'a': [1, 3], 'b': [2, 4] }
     */
    var mergeWith = createAssigner(function(object, source, srcIndex, customizer) {
      baseMerge(object, source, srcIndex, customizer);
    });

    /**
     * The opposite of `_.pick`; this method creates an object composed of the
     * own and inherited enumerable property paths of `object` that are not omitted.
     *
     * **Note:** This method is considerably slower than `_.pick`.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Object
     * @param {Object} object The source object.
     * @param {...(string|string[])} [paths] The property paths to omit.
     * @returns {Object} Returns the new object.
     * @example
     *
     * var object = { 'a': 1, 'b': '2', 'c': 3 };
     *
     * _.omit(object, ['a', 'c']);
     * // => { 'b': '2' }
     */
    var omit = flatRest(function(object, paths) {
      var result = {};
      if (object == null) {
        return result;
      }
      var isDeep = false;
      paths = arrayMap(paths, function(path) {
        path = castPath(path, object);
        isDeep || (isDeep = path.length > 1);
        return path;
      });
      copyObject(object, getAllKeysIn(object), result);
      if (isDeep) {
        result = baseClone(result, CLONE_DEEP_FLAG | CLONE_FLAT_FLAG | CLONE_SYMBOLS_FLAG, customOmitClone);
      }
      var length = paths.length;
      while (length--) {
        baseUnset(result, paths[length]);
      }
      return result;
    });

    /**
     * The opposite of `_.pickBy`; this method creates an object composed of
     * the own and inherited enumerable string keyed properties of `object` that
     * `predicate` doesn't return truthy for. The predicate is invoked with two
     * arguments: (value, key).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Object
     * @param {Object} object The source object.
     * @param {Function} [predicate=_.identity] The function invoked per property.
     * @returns {Object} Returns the new object.
     * @example
     *
     * var object = { 'a': 1, 'b': '2', 'c': 3 };
     *
     * _.omitBy(object, _.isNumber);
     * // => { 'b': '2' }
     */
    function omitBy(object, predicate) {
      return pickBy(object, negate(getIteratee(predicate)));
    }

    /**
     * Creates an object composed of the picked `object` properties.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Object
     * @param {Object} object The source object.
     * @param {...(string|string[])} [paths] The property paths to pick.
     * @returns {Object} Returns the new object.
     * @example
     *
     * var object = { 'a': 1, 'b': '2', 'c': 3 };
     *
     * _.pick(object, ['a', 'c']);
     * // => { 'a': 1, 'c': 3 }
     */
    var pick = flatRest(function(object, paths) {
      return object == null ? {} : basePick(object, paths);
    });

    /**
     * Creates an object composed of the `object` properties `predicate` returns
     * truthy for. The predicate is invoked with two arguments: (value, key).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Object
     * @param {Object} object The source object.
     * @param {Function} [predicate=_.identity] The function invoked per property.
     * @returns {Object} Returns the new object.
     * @example
     *
     * var object = { 'a': 1, 'b': '2', 'c': 3 };
     *
     * _.pickBy(object, _.isNumber);
     * // => { 'a': 1, 'c': 3 }
     */
    function pickBy(object, predicate) {
      if (object == null) {
        return {};
      }
      var props = arrayMap(getAllKeysIn(object), function(prop) {
        return [prop];
      });
      predicate = getIteratee(predicate);
      return basePickBy(object, props, function(value, path) {
        return predicate(value, path[0]);
      });
    }

    /**
     * This method is like `_.get` except that if the resolved value is a
     * function it's invoked with the `this` binding of its parent object and
     * its result is returned.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Object
     * @param {Object} object The object to query.
     * @param {Array|string} path The path of the property to resolve.
     * @param {*} [defaultValue] The value returned for `undefined` resolved values.
     * @returns {*} Returns the resolved value.
     * @example
     *
     * var object = { 'a': [{ 'b': { 'c1': 3, 'c2': _.constant(4) } }] };
     *
     * _.result(object, 'a[0].b.c1');
     * // => 3
     *
     * _.result(object, 'a[0].b.c2');
     * // => 4
     *
     * _.result(object, 'a[0].b.c3', 'default');
     * // => 'default'
     *
     * _.result(object, 'a[0].b.c3', _.constant('default'));
     * // => 'default'
     */
    function result(object, path, defaultValue) {
      path = castPath(path, object);

      var index = -1,
          length = path.length;

      // Ensure the loop is entered when path is empty.
      if (!length) {
        length = 1;
        object = undefined;
      }
      while (++index < length) {
        var value = object == null ? undefined : object[toKey(path[index])];
        if (value === undefined) {
          index = length;
          value = defaultValue;
        }
        object = isFunction(value) ? value.call(object) : value;
      }
      return object;
    }

    /**
     * Sets the value at `path` of `object`. If a portion of `path` doesn't exist,
     * it's created. Arrays are created for missing index properties while objects
     * are created for all other missing properties. Use `_.setWith` to customize
     * `path` creation.
     *
     * **Note:** This method mutates `object`.
     *
     * @static
     * @memberOf _
     * @since 3.7.0
     * @category Object
     * @param {Object} object The object to modify.
     * @param {Array|string} path The path of the property to set.
     * @param {*} value The value to set.
     * @returns {Object} Returns `object`.
     * @example
     *
     * var object = { 'a': [{ 'b': { 'c': 3 } }] };
     *
     * _.set(object, 'a[0].b.c', 4);
     * console.log(object.a[0].b.c);
     * // => 4
     *
     * _.set(object, ['x', '0', 'y', 'z'], 5);
     * console.log(object.x[0].y.z);
     * // => 5
     */
    function set(object, path, value) {
      return object == null ? object : baseSet(object, path, value);
    }

    /**
     * This method is like `_.set` except that it accepts `customizer` which is
     * invoked to produce the objects of `path`.  If `customizer` returns `undefined`
     * path creation is handled by the method instead. The `customizer` is invoked
     * with three arguments: (nsValue, key, nsObject).
     *
     * **Note:** This method mutates `object`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Object
     * @param {Object} object The object to modify.
     * @param {Array|string} path The path of the property to set.
     * @param {*} value The value to set.
     * @param {Function} [customizer] The function to customize assigned values.
     * @returns {Object} Returns `object`.
     * @example
     *
     * var object = {};
     *
     * _.setWith(object, '[0][1]', 'a', Object);
     * // => { '0': { '1': 'a' } }
     */
    function setWith(object, path, value, customizer) {
      customizer = typeof customizer == 'function' ? customizer : undefined;
      return object == null ? object : baseSet(object, path, value, customizer);
    }

    /**
     * Creates an array of own enumerable string keyed-value pairs for `object`
     * which can be consumed by `_.fromPairs`. If `object` is a map or set, its
     * entries are returned.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @alias entries
     * @category Object
     * @param {Object} object The object to query.
     * @returns {Array} Returns the key-value pairs.
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     *   this.b = 2;
     * }
     *
     * Foo.prototype.c = 3;
     *
     * _.toPairs(new Foo);
     * // => [['a', 1], ['b', 2]] (iteration order is not guaranteed)
     */
    var toPairs = createToPairs(keys);

    /**
     * Creates an array of own and inherited enumerable string keyed-value pairs
     * for `object` which can be consumed by `_.fromPairs`. If `object` is a map
     * or set, its entries are returned.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @alias entriesIn
     * @category Object
     * @param {Object} object The object to query.
     * @returns {Array} Returns the key-value pairs.
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     *   this.b = 2;
     * }
     *
     * Foo.prototype.c = 3;
     *
     * _.toPairsIn(new Foo);
     * // => [['a', 1], ['b', 2], ['c', 3]] (iteration order is not guaranteed)
     */
    var toPairsIn = createToPairs(keysIn);

    /**
     * An alternative to `_.reduce`; this method transforms `object` to a new
     * `accumulator` object which is the result of running each of its own
     * enumerable string keyed properties thru `iteratee`, with each invocation
     * potentially mutating the `accumulator` object. If `accumulator` is not
     * provided, a new object with the same `[[Prototype]]` will be used. The
     * iteratee is invoked with four arguments: (accumulator, value, key, object).
     * Iteratee functions may exit iteration early by explicitly returning `false`.
     *
     * @static
     * @memberOf _
     * @since 1.3.0
     * @category Object
     * @param {Object} object The object to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @param {*} [accumulator] The custom accumulator value.
     * @returns {*} Returns the accumulated value.
     * @example
     *
     * _.transform([2, 3, 4], function(result, n) {
     *   result.push(n *= n);
     *   return n % 2 == 0;
     * }, []);
     * // => [4, 9]
     *
     * _.transform({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) {
     *   (result[value] || (result[value] = [])).push(key);
     * }, {});
     * // => { '1': ['a', 'c'], '2': ['b'] }
     */
    function transform(object, iteratee, accumulator) {
      var isArr = isArray(object),
          isArrLike = isArr || isBuffer(object) || isTypedArray(object);

      iteratee = getIteratee(iteratee, 4);
      if (accumulator == null) {
        var Ctor = object && object.constructor;
        if (isArrLike) {
          accumulator = isArr ? new Ctor : [];
        }
        else if (isObject(object)) {
          accumulator = isFunction(Ctor) ? baseCreate(getPrototype(object)) : {};
        }
        else {
          accumulator = {};
        }
      }
      (isArrLike ? arrayEach : baseForOwn)(object, function(value, index, object) {
        return iteratee(accumulator, value, index, object);
      });
      return accumulator;
    }

    /**
     * Removes the property at `path` of `object`.
     *
     * **Note:** This method mutates `object`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Object
     * @param {Object} object The object to modify.
     * @param {Array|string} path The path of the property to unset.
     * @returns {boolean} Returns `true` if the property is deleted, else `false`.
     * @example
     *
     * var object = { 'a': [{ 'b': { 'c': 7 } }] };
     * _.unset(object, 'a[0].b.c');
     * // => true
     *
     * console.log(object);
     * // => { 'a': [{ 'b': {} }] };
     *
     * _.unset(object, ['a', '0', 'b', 'c']);
     * // => true
     *
     * console.log(object);
     * // => { 'a': [{ 'b': {} }] };
     */
    function unset(object, path) {
      return object == null ? true : baseUnset(object, path);
    }

    /**
     * This method is like `_.set` except that accepts `updater` to produce the
     * value to set. Use `_.updateWith` to customize `path` creation. The `updater`
     * is invoked with one argument: (value).
     *
     * **Note:** This method mutates `object`.
     *
     * @static
     * @memberOf _
     * @since 4.6.0
     * @category Object
     * @param {Object} object The object to modify.
     * @param {Array|string} path The path of the property to set.
     * @param {Function} updater The function to produce the updated value.
     * @returns {Object} Returns `object`.
     * @example
     *
     * var object = { 'a': [{ 'b': { 'c': 3 } }] };
     *
     * _.update(object, 'a[0].b.c', function(n) { return n * n; });
     * console.log(object.a[0].b.c);
     * // => 9
     *
     * _.update(object, 'x[0].y.z', function(n) { return n ? n + 1 : 0; });
     * console.log(object.x[0].y.z);
     * // => 0
     */
    function update(object, path, updater) {
      return object == null ? object : baseUpdate(object, path, castFunction(updater));
    }

    /**
     * This method is like `_.update` except that it accepts `customizer` which is
     * invoked to produce the objects of `path`.  If `customizer` returns `undefined`
     * path creation is handled by the method instead. The `customizer` is invoked
     * with three arguments: (nsValue, key, nsObject).
     *
     * **Note:** This method mutates `object`.
     *
     * @static
     * @memberOf _
     * @since 4.6.0
     * @category Object
     * @param {Object} object The object to modify.
     * @param {Array|string} path The path of the property to set.
     * @param {Function} updater The function to produce the updated value.
     * @param {Function} [customizer] The function to customize assigned values.
     * @returns {Object} Returns `object`.
     * @example
     *
     * var object = {};
     *
     * _.updateWith(object, '[0][1]', _.constant('a'), Object);
     * // => { '0': { '1': 'a' } }
     */
    function updateWith(object, path, updater, customizer) {
      customizer = typeof customizer == 'function' ? customizer : undefined;
      return object == null ? object : baseUpdate(object, path, castFunction(updater), customizer);
    }

    /**
     * Creates an array of the own enumerable string keyed property values of `object`.
     *
     * **Note:** Non-object values are coerced to objects.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Object
     * @param {Object} object The object to query.
     * @returns {Array} Returns the array of property values.
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     *   this.b = 2;
     * }
     *
     * Foo.prototype.c = 3;
     *
     * _.values(new Foo);
     * // => [1, 2] (iteration order is not guaranteed)
     *
     * _.values('hi');
     * // => ['h', 'i']
     */
    function values(object) {
      return object == null ? [] : baseValues(object, keys(object));
    }

    /**
     * Creates an array of the own and inherited enumerable string keyed property
     * values of `object`.
     *
     * **Note:** Non-object values are coerced to objects.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Object
     * @param {Object} object The object to query.
     * @returns {Array} Returns the array of property values.
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     *   this.b = 2;
     * }
     *
     * Foo.prototype.c = 3;
     *
     * _.valuesIn(new Foo);
     * // => [1, 2, 3] (iteration order is not guaranteed)
     */
    function valuesIn(object) {
      return object == null ? [] : baseValues(object, keysIn(object));
    }

    /*------------------------------------------------------------------------*/

    /**
     * Clamps `number` within the inclusive `lower` and `upper` bounds.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Number
     * @param {number} number The number to clamp.
     * @param {number} [lower] The lower bound.
     * @param {number} upper The upper bound.
     * @returns {number} Returns the clamped number.
     * @example
     *
     * _.clamp(-10, -5, 5);
     * // => -5
     *
     * _.clamp(10, -5, 5);
     * // => 5
     */
    function clamp(number, lower, upper) {
      if (upper === undefined) {
        upper = lower;
        lower = undefined;
      }
      if (upper !== undefined) {
        upper = toNumber(upper);
        upper = upper === upper ? upper : 0;
      }
      if (lower !== undefined) {
        lower = toNumber(lower);
        lower = lower === lower ? lower : 0;
      }
      return baseClamp(toNumber(number), lower, upper);
    }

    /**
     * Checks if `n` is between `start` and up to, but not including, `end`. If
     * `end` is not specified, it's set to `start` with `start` then set to `0`.
     * If `start` is greater than `end` the params are swapped to support
     * negative ranges.
     *
     * @static
     * @memberOf _
     * @since 3.3.0
     * @category Number
     * @param {number} number The number to check.
     * @param {number} [start=0] The start of the range.
     * @param {number} end The end of the range.
     * @returns {boolean} Returns `true` if `number` is in the range, else `false`.
     * @see _.range, _.rangeRight
     * @example
     *
     * _.inRange(3, 2, 4);
     * // => true
     *
     * _.inRange(4, 8);
     * // => true
     *
     * _.inRange(4, 2);
     * // => false
     *
     * _.inRange(2, 2);
     * // => false
     *
     * _.inRange(1.2, 2);
     * // => true
     *
     * _.inRange(5.2, 4);
     * // => false
     *
     * _.inRange(-3, -2, -6);
     * // => true
     */
    function inRange(number, start, end) {
      start = toFinite(start);
      if (end === undefined) {
        end = start;
        start = 0;
      } else {
        end = toFinite(end);
      }
      number = toNumber(number);
      return baseInRange(number, start, end);
    }

    /**
     * Produces a random number between the inclusive `lower` and `upper` bounds.
     * If only one argument is provided a number between `0` and the given number
     * is returned. If `floating` is `true`, or either `lower` or `upper` are
     * floats, a floating-point number is returned instead of an integer.
     *
     * **Note:** JavaScript follows the IEEE-754 standard for resolving
     * floating-point values which can produce unexpected results.
     *
     * @static
     * @memberOf _
     * @since 0.7.0
     * @category Number
     * @param {number} [lower=0] The lower bound.
     * @param {number} [upper=1] The upper bound.
     * @param {boolean} [floating] Specify returning a floating-point number.
     * @returns {number} Returns the random number.
     * @example
     *
     * _.random(0, 5);
     * // => an integer between 0 and 5
     *
     * _.random(5);
     * // => also an integer between 0 and 5
     *
     * _.random(5, true);
     * // => a floating-point number between 0 and 5
     *
     * _.random(1.2, 5.2);
     * // => a floating-point number between 1.2 and 5.2
     */
    function random(lower, upper, floating) {
      if (floating && typeof floating != 'boolean' && isIterateeCall(lower, upper, floating)) {
        upper = floating = undefined;
      }
      if (floating === undefined) {
        if (typeof upper == 'boolean') {
          floating = upper;
          upper = undefined;
        }
        else if (typeof lower == 'boolean') {
          floating = lower;
          lower = undefined;
        }
      }
      if (lower === undefined && upper === undefined) {
        lower = 0;
        upper = 1;
      }
      else {
        lower = toFinite(lower);
        if (upper === undefined) {
          upper = lower;
          lower = 0;
        } else {
          upper = toFinite(upper);
        }
      }
      if (lower > upper) {
        var temp = lower;
        lower = upper;
        upper = temp;
      }
      if (floating || lower % 1 || upper % 1) {
        var rand = nativeRandom();
        return nativeMin(lower + (rand * (upper - lower + freeParseFloat('1e-' + ((rand + '').length - 1)))), upper);
      }
      return baseRandom(lower, upper);
    }

    /*------------------------------------------------------------------------*/

    /**
     * Converts `string` to [camel case](https://en.wikipedia.org/wiki/CamelCase).
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category String
     * @param {string} [string=''] The string to convert.
     * @returns {string} Returns the camel cased string.
     * @example
     *
     * _.camelCase('Foo Bar');
     * // => 'fooBar'
     *
     * _.camelCase('--foo-bar--');
     * // => 'fooBar'
     *
     * _.camelCase('__FOO_BAR__');
     * // => 'fooBar'
     */
    var camelCase = createCompounder(function(result, word, index) {
      word = word.toLowerCase();
      return result + (index ? capitalize(word) : word);
    });

    /**
     * Converts the first character of `string` to upper case and the remaining
     * to lower case.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category String
     * @param {string} [string=''] The string to capitalize.
     * @returns {string} Returns the capitalized string.
     * @example
     *
     * _.capitalize('FRED');
     * // => 'Fred'
     */
    function capitalize(string) {
      return upperFirst(toString(string).toLowerCase());
    }

    /**
     * Deburrs `string` by converting
     * [Latin-1 Supplement](https://en.wikipedia.org/wiki/Latin-1_Supplement_(Unicode_block)#Character_table)
     * and [Latin Extended-A](https://en.wikipedia.org/wiki/Latin_Extended-A)
     * letters to basic Latin letters and removing
     * [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks).
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category String
     * @param {string} [string=''] The string to deburr.
     * @returns {string} Returns the deburred string.
     * @example
     *
     * _.deburr('déjà vu');
     * // => 'deja vu'
     */
    function deburr(string) {
      string = toString(string);
      return string && string.replace(reLatin, deburrLetter).replace(reComboMark, '');
    }

    /**
     * Checks if `string` ends with the given target string.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category String
     * @param {string} [string=''] The string to inspect.
     * @param {string} [target] The string to search for.
     * @param {number} [position=string.length] The position to search up to.
     * @returns {boolean} Returns `true` if `string` ends with `target`,
     *  else `false`.
     * @example
     *
     * _.endsWith('abc', 'c');
     * // => true
     *
     * _.endsWith('abc', 'b');
     * // => false
     *
     * _.endsWith('abc', 'b', 2);
     * // => true
     */
    function endsWith(string, target, position) {
      string = toString(string);
      target = baseToString(target);

      var length = string.length;
      position = position === undefined
        ? length
        : baseClamp(toInteger(position), 0, length);

      var end = position;
      position -= target.length;
      return position >= 0 && string.slice(position, end) == target;
    }

    /**
     * Converts the characters "&", "<", ">", '"', and "'" in `string` to their
     * corresponding HTML entities.
     *
     * **Note:** No other characters are escaped. To escape additional
     * characters use a third-party library like [_he_](https://mths.be/he).
     *
     * Though the ">" character is escaped for symmetry, characters like
     * ">" and "/" don't need escaping in HTML and have no special meaning
     * unless they're part of a tag or unquoted attribute value. See
     * [Mathias Bynens's article](https://mathiasbynens.be/notes/ambiguous-ampersands)
     * (under "semi-related fun fact") for more details.
     *
     * When working with HTML you should always
     * [quote attribute values](http://wonko.com/post/html-escaping) to reduce
     * XSS vectors.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category String
     * @param {string} [string=''] The string to escape.
     * @returns {string} Returns the escaped string.
     * @example
     *
     * _.escape('fred, barney, & pebbles');
     * // => 'fred, barney, &amp; pebbles'
     */
    function escape(string) {
      string = toString(string);
      return (string && reHasUnescapedHtml.test(string))
        ? string.replace(reUnescapedHtml, escapeHtmlChar)
        : string;
    }

    /**
     * Escapes the `RegExp` special characters "^", "$", "\", ".", "*", "+",
     * "?", "(", ")", "[", "]", "{", "}", and "|" in `string`.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category String
     * @param {string} [string=''] The string to escape.
     * @returns {string} Returns the escaped string.
     * @example
     *
     * _.escapeRegExp('[lodash](https://lodash.com/)');
     * // => '\[lodash\]\(https://lodash\.com/\)'
     */
    function escapeRegExp(string) {
      string = toString(string);
      return (string && reHasRegExpChar.test(string))
        ? string.replace(reRegExpChar, '\\$&')
        : string;
    }

    /**
     * Converts `string` to
     * [kebab case](https://en.wikipedia.org/wiki/Letter_case#Special_case_styles).
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category String
     * @param {string} [string=''] The string to convert.
     * @returns {string} Returns the kebab cased string.
     * @example
     *
     * _.kebabCase('Foo Bar');
     * // => 'foo-bar'
     *
     * _.kebabCase('fooBar');
     * // => 'foo-bar'
     *
     * _.kebabCase('__FOO_BAR__');
     * // => 'foo-bar'
     */
    var kebabCase = createCompounder(function(result, word, index) {
      return result + (index ? '-' : '') + word.toLowerCase();
    });

    /**
     * Converts `string`, as space separated words, to lower case.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category String
     * @param {string} [string=''] The string to convert.
     * @returns {string} Returns the lower cased string.
     * @example
     *
     * _.lowerCase('--Foo-Bar--');
     * // => 'foo bar'
     *
     * _.lowerCase('fooBar');
     * // => 'foo bar'
     *
     * _.lowerCase('__FOO_BAR__');
     * // => 'foo bar'
     */
    var lowerCase = createCompounder(function(result, word, index) {
      return result + (index ? ' ' : '') + word.toLowerCase();
    });

    /**
     * Converts the first character of `string` to lower case.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category String
     * @param {string} [string=''] The string to convert.
     * @returns {string} Returns the converted string.
     * @example
     *
     * _.lowerFirst('Fred');
     * // => 'fred'
     *
     * _.lowerFirst('FRED');
     * // => 'fRED'
     */
    var lowerFirst = createCaseFirst('toLowerCase');

    /**
     * Pads `string` on the left and right sides if it's shorter than `length`.
     * Padding characters are truncated if they can't be evenly divided by `length`.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category String
     * @param {string} [string=''] The string to pad.
     * @param {number} [length=0] The padding length.
     * @param {string} [chars=' '] The string used as padding.
     * @returns {string} Returns the padded string.
     * @example
     *
     * _.pad('abc', 8);
     * // => '  abc   '
     *
     * _.pad('abc', 8, '_-');
     * // => '_-abc_-_'
     *
     * _.pad('abc', 3);
     * // => 'abc'
     */
    function pad(string, length, chars) {
      string = toString(string);
      length = toInteger(length);

      var strLength = length ? stringSize(string) : 0;
      if (!length || strLength >= length) {
        return string;
      }
      var mid = (length - strLength) / 2;
      return (
        createPadding(nativeFloor(mid), chars) +
        string +
        createPadding(nativeCeil(mid), chars)
      );
    }

    /**
     * Pads `string` on the right side if it's shorter than `length`. Padding
     * characters are truncated if they exceed `length`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category String
     * @param {string} [string=''] The string to pad.
     * @param {number} [length=0] The padding length.
     * @param {string} [chars=' '] The string used as padding.
     * @returns {string} Returns the padded string.
     * @example
     *
     * _.padEnd('abc', 6);
     * // => 'abc   '
     *
     * _.padEnd('abc', 6, '_-');
     * // => 'abc_-_'
     *
     * _.padEnd('abc', 3);
     * // => 'abc'
     */
    function padEnd(string, length, chars) {
      string = toString(string);
      length = toInteger(length);

      var strLength = length ? stringSize(string) : 0;
      return (length && strLength < length)
        ? (string + createPadding(length - strLength, chars))
        : string;
    }

    /**
     * Pads `string` on the left side if it's shorter than `length`. Padding
     * characters are truncated if they exceed `length`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category String
     * @param {string} [string=''] The string to pad.
     * @param {number} [length=0] The padding length.
     * @param {string} [chars=' '] The string used as padding.
     * @returns {string} Returns the padded string.
     * @example
     *
     * _.padStart('abc', 6);
     * // => '   abc'
     *
     * _.padStart('abc', 6, '_-');
     * // => '_-_abc'
     *
     * _.padStart('abc', 3);
     * // => 'abc'
     */
    function padStart(string, length, chars) {
      string = toString(string);
      length = toInteger(length);

      var strLength = length ? stringSize(string) : 0;
      return (length && strLength < length)
        ? (createPadding(length - strLength, chars) + string)
        : string;
    }

    /**
     * Converts `string` to an integer of the specified radix. If `radix` is
     * `undefined` or `0`, a `radix` of `10` is used unless `value` is a
     * hexadecimal, in which case a `radix` of `16` is used.
     *
     * **Note:** This method aligns with the
     * [ES5 implementation](https://es5.github.io/#x15.1.2.2) of `parseInt`.
     *
     * @static
     * @memberOf _
     * @since 1.1.0
     * @category String
     * @param {string} string The string to convert.
     * @param {number} [radix=10] The radix to interpret `value` by.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {number} Returns the converted integer.
     * @example
     *
     * _.parseInt('08');
     * // => 8
     *
     * _.map(['6', '08', '10'], _.parseInt);
     * // => [6, 8, 10]
     */
    function parseInt(string, radix, guard) {
      if (guard || radix == null) {
        radix = 0;
      } else if (radix) {
        radix = +radix;
      }
      return nativeParseInt(toString(string).replace(reTrimStart, ''), radix || 0);
    }

    /**
     * Repeats the given string `n` times.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category String
     * @param {string} [string=''] The string to repeat.
     * @param {number} [n=1] The number of times to repeat the string.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {string} Returns the repeated string.
     * @example
     *
     * _.repeat('*', 3);
     * // => '***'
     *
     * _.repeat('abc', 2);
     * // => 'abcabc'
     *
     * _.repeat('abc', 0);
     * // => ''
     */
    function repeat(string, n, guard) {
      if ((guard ? isIterateeCall(string, n, guard) : n === undefined)) {
        n = 1;
      } else {
        n = toInteger(n);
      }
      return baseRepeat(toString(string), n);
    }

    /**
     * Replaces matches for `pattern` in `string` with `replacement`.
     *
     * **Note:** This method is based on
     * [`String#replace`](https://mdn.io/String/replace).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category String
     * @param {string} [string=''] The string to modify.
     * @param {RegExp|string} pattern The pattern to replace.
     * @param {Function|string} replacement The match replacement.
     * @returns {string} Returns the modified string.
     * @example
     *
     * _.replace('Hi Fred', 'Fred', 'Barney');
     * // => 'Hi Barney'
     */
    function replace() {
      var args = arguments,
          string = toString(args[0]);

      return args.length < 3 ? string : string.replace(args[1], args[2]);
    }

    /**
     * Converts `string` to
     * [snake case](https://en.wikipedia.org/wiki/Snake_case).
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category String
     * @param {string} [string=''] The string to convert.
     * @returns {string} Returns the snake cased string.
     * @example
     *
     * _.snakeCase('Foo Bar');
     * // => 'foo_bar'
     *
     * _.snakeCase('fooBar');
     * // => 'foo_bar'
     *
     * _.snakeCase('--FOO-BAR--');
     * // => 'foo_bar'
     */
    var snakeCase = createCompounder(function(result, word, index) {
      return result + (index ? '_' : '') + word.toLowerCase();
    });

    /**
     * Splits `string` by `separator`.
     *
     * **Note:** This method is based on
     * [`String#split`](https://mdn.io/String/split).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category String
     * @param {string} [string=''] The string to split.
     * @param {RegExp|string} separator The separator pattern to split by.
     * @param {number} [limit] The length to truncate results to.
     * @returns {Array} Returns the string segments.
     * @example
     *
     * _.split('a-b-c', '-', 2);
     * // => ['a', 'b']
     */
    function split(string, separator, limit) {
      if (limit && typeof limit != 'number' && isIterateeCall(string, separator, limit)) {
        separator = limit = undefined;
      }
      limit = limit === undefined ? MAX_ARRAY_LENGTH : limit >>> 0;
      if (!limit) {
        return [];
      }
      string = toString(string);
      if (string && (
            typeof separator == 'string' ||
            (separator != null && !isRegExp(separator))
          )) {
        separator = baseToString(separator);
        if (!separator && hasUnicode(string)) {
          return castSlice(stringToArray(string), 0, limit);
        }
      }
      return string.split(separator, limit);
    }

    /**
     * Converts `string` to
     * [start case](https://en.wikipedia.org/wiki/Letter_case#Stylistic_or_specialised_usage).
     *
     * @static
     * @memberOf _
     * @since 3.1.0
     * @category String
     * @param {string} [string=''] The string to convert.
     * @returns {string} Returns the start cased string.
     * @example
     *
     * _.startCase('--foo-bar--');
     * // => 'Foo Bar'
     *
     * _.startCase('fooBar');
     * // => 'Foo Bar'
     *
     * _.startCase('__FOO_BAR__');
     * // => 'FOO BAR'
     */
    var startCase = createCompounder(function(result, word, index) {
      return result + (index ? ' ' : '') + upperFirst(word);
    });

    /**
     * Checks if `string` starts with the given target string.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category String
     * @param {string} [string=''] The string to inspect.
     * @param {string} [target] The string to search for.
     * @param {number} [position=0] The position to search from.
     * @returns {boolean} Returns `true` if `string` starts with `target`,
     *  else `false`.
     * @example
     *
     * _.startsWith('abc', 'a');
     * // => true
     *
     * _.startsWith('abc', 'b');
     * // => false
     *
     * _.startsWith('abc', 'b', 1);
     * // => true
     */
    function startsWith(string, target, position) {
      string = toString(string);
      position = position == null
        ? 0
        : baseClamp(toInteger(position), 0, string.length);

      target = baseToString(target);
      return string.slice(position, position + target.length) == target;
    }

    /**
     * Creates a compiled template function that can interpolate data properties
     * in "interpolate" delimiters, HTML-escape interpolated data properties in
     * "escape" delimiters, and execute JavaScript in "evaluate" delimiters. Data
     * properties may be accessed as free variables in the template. If a setting
     * object is given, it takes precedence over `_.templateSettings` values.
     *
     * **Note:** In the development build `_.template` utilizes
     * [sourceURLs](http://www.html5rocks.com/en/tutorials/developertools/sourcemaps/#toc-sourceurl)
     * for easier debugging.
     *
     * For more information on precompiling templates see
     * [lodash's custom builds documentation](https://lodash.com/custom-builds).
     *
     * For more information on Chrome extension sandboxes see
     * [Chrome's extensions documentation](https://developer.chrome.com/extensions/sandboxingEval).
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category String
     * @param {string} [string=''] The template string.
     * @param {Object} [options={}] The options object.
     * @param {RegExp} [options.escape=_.templateSettings.escape]
     *  The HTML "escape" delimiter.
     * @param {RegExp} [options.evaluate=_.templateSettings.evaluate]
     *  The "evaluate" delimiter.
     * @param {Object} [options.imports=_.templateSettings.imports]
     *  An object to import into the template as free variables.
     * @param {RegExp} [options.interpolate=_.templateSettings.interpolate]
     *  The "interpolate" delimiter.
     * @param {string} [options.sourceURL='lodash.templateSources[n]']
     *  The sourceURL of the compiled template.
     * @param {string} [options.variable='obj']
     *  The data object variable name.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {Function} Returns the compiled template function.
     * @example
     *
     * // Use the "interpolate" delimiter to create a compiled template.
     * var compiled = _.template('hello <%= user %>!');
     * compiled({ 'user': 'fred' });
     * // => 'hello fred!'
     *
     * // Use the HTML "escape" delimiter to escape data property values.
     * var compiled = _.template('<b><%- value %></b>');
     * compiled({ 'value': '<script>' });
     * // => '<b>&lt;script&gt;</b>'
     *
     * // Use the "evaluate" delimiter to execute JavaScript and generate HTML.
     * var compiled = _.template('<% _.forEach(users, function(user) { %><li><%- user %></li><% }); %>');
     * compiled({ 'users': ['fred', 'barney'] });
     * // => '<li>fred</li><li>barney</li>'
     *
     * // Use the internal `print` function in "evaluate" delimiters.
     * var compiled = _.template('<% print("hello " + user); %>!');
     * compiled({ 'user': 'barney' });
     * // => 'hello barney!'
     *
     * // Use the ES template literal delimiter as an "interpolate" delimiter.
     * // Disable support by replacing the "interpolate" delimiter.
     * var compiled = _.template('hello ${ user }!');
     * compiled({ 'user': 'pebbles' });
     * // => 'hello pebbles!'
     *
     * // Use backslashes to treat delimiters as plain text.
     * var compiled = _.template('<%= "\\<%- value %\\>" %>');
     * compiled({ 'value': 'ignored' });
     * // => '<%- value %>'
     *
     * // Use the `imports` option to import `jQuery` as `jq`.
     * var text = '<% jq.each(users, function(user) { %><li><%- user %></li><% }); %>';
     * var compiled = _.template(text, { 'imports': { 'jq': jQuery } });
     * compiled({ 'users': ['fred', 'barney'] });
     * // => '<li>fred</li><li>barney</li>'
     *
     * // Use the `sourceURL` option to specify a custom sourceURL for the template.
     * var compiled = _.template('hello <%= user %>!', { 'sourceURL': '/basic/greeting.jst' });
     * compiled(data);
     * // => Find the source of "greeting.jst" under the Sources tab or Resources panel of the web inspector.
     *
     * // Use the `variable` option to ensure a with-statement isn't used in the compiled template.
     * var compiled = _.template('hi <%= data.user %>!', { 'variable': 'data' });
     * compiled.source;
     * // => function(data) {
     * //   var __t, __p = '';
     * //   __p += 'hi ' + ((__t = ( data.user )) == null ? '' : __t) + '!';
     * //   return __p;
     * // }
     *
     * // Use custom template delimiters.
     * _.templateSettings.interpolate = /{{([\s\S]+?)}}/g;
     * var compiled = _.template('hello {{ user }}!');
     * compiled({ 'user': 'mustache' });
     * // => 'hello mustache!'
     *
     * // Use the `source` property to inline compiled templates for meaningful
     * // line numbers in error messages and stack traces.
     * fs.writeFileSync(path.join(process.cwd(), 'jst.js'), '\
     *   var JST = {\
     *     "main": ' + _.template(mainText).source + '\
     *   };\
     * ');
     */
    function template(string, options, guard) {
      // Based on John Resig's `tmpl` implementation
      // (http://ejohn.org/blog/javascript-micro-templating/)
      // and Laura Doktorova's doT.js (https://github.com/olado/doT).
      var settings = lodash.templateSettings;

      if (guard && isIterateeCall(string, options, guard)) {
        options = undefined;
      }
      string = toString(string);
      options = assignInWith({}, options, settings, customDefaultsAssignIn);

      var imports = assignInWith({}, options.imports, settings.imports, customDefaultsAssignIn),
          importsKeys = keys(imports),
          importsValues = baseValues(imports, importsKeys);

      var isEscaping,
          isEvaluating,
          index = 0,
          interpolate = options.interpolate || reNoMatch,
          source = "__p += '";

      // Compile the regexp to match each delimiter.
      var reDelimiters = RegExp(
        (options.escape || reNoMatch).source + '|' +
        interpolate.source + '|' +
        (interpolate === reInterpolate ? reEsTemplate : reNoMatch).source + '|' +
        (options.evaluate || reNoMatch).source + '|$'
      , 'g');

      // Use a sourceURL for easier debugging.
      var sourceURL = '//# sourceURL=' +
        ('sourceURL' in options
          ? options.sourceURL
          : ('lodash.templateSources[' + (++templateCounter) + ']')
        ) + '\n';

      string.replace(reDelimiters, function(match, escapeValue, interpolateValue, esTemplateValue, evaluateValue, offset) {
        interpolateValue || (interpolateValue = esTemplateValue);

        // Escape characters that can't be included in string literals.
        source += string.slice(index, offset).replace(reUnescapedString, escapeStringChar);

        // Replace delimiters with snippets.
        if (escapeValue) {
          isEscaping = true;
          source += "' +\n__e(" + escapeValue + ") +\n'";
        }
        if (evaluateValue) {
          isEvaluating = true;
          source += "';\n" + evaluateValue + ";\n__p += '";
        }
        if (interpolateValue) {
          source += "' +\n((__t = (" + interpolateValue + ")) == null ? '' : __t) +\n'";
        }
        index = offset + match.length;

        // The JS engine embedded in Adobe products needs `match` returned in
        // order to produce the correct `offset` value.
        return match;
      });

      source += "';\n";

      // If `variable` is not specified wrap a with-statement around the generated
      // code to add the data object to the top of the scope chain.
      var variable = options.variable;
      if (!variable) {
        source = 'with (obj) {\n' + source + '\n}\n';
      }
      // Cleanup code by stripping empty strings.
      source = (isEvaluating ? source.replace(reEmptyStringLeading, '') : source)
        .replace(reEmptyStringMiddle, '$1')
        .replace(reEmptyStringTrailing, '$1;');

      // Frame code as the function body.
      source = 'function(' + (variable || 'obj') + ') {\n' +
        (variable
          ? ''
          : 'obj || (obj = {});\n'
        ) +
        "var __t, __p = ''" +
        (isEscaping
           ? ', __e = _.escape'
           : ''
        ) +
        (isEvaluating
          ? ', __j = Array.prototype.join;\n' +
            "function print() { __p += __j.call(arguments, '') }\n"
          : ';\n'
        ) +
        source +
        'return __p\n}';

      var result = attempt(function() {
        return Function(importsKeys, sourceURL + 'return ' + source)
          .apply(undefined, importsValues);
      });

      // Provide the compiled function's source by its `toString` method or
      // the `source` property as a convenience for inlining compiled templates.
      result.source = source;
      if (isError(result)) {
        throw result;
      }
      return result;
    }

    /**
     * Converts `string`, as a whole, to lower case just like
     * [String#toLowerCase](https://mdn.io/toLowerCase).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category String
     * @param {string} [string=''] The string to convert.
     * @returns {string} Returns the lower cased string.
     * @example
     *
     * _.toLower('--Foo-Bar--');
     * // => '--foo-bar--'
     *
     * _.toLower('fooBar');
     * // => 'foobar'
     *
     * _.toLower('__FOO_BAR__');
     * // => '__foo_bar__'
     */
    function toLower(value) {
      return toString(value).toLowerCase();
    }

    /**
     * Converts `string`, as a whole, to upper case just like
     * [String#toUpperCase](https://mdn.io/toUpperCase).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category String
     * @param {string} [string=''] The string to convert.
     * @returns {string} Returns the upper cased string.
     * @example
     *
     * _.toUpper('--foo-bar--');
     * // => '--FOO-BAR--'
     *
     * _.toUpper('fooBar');
     * // => 'FOOBAR'
     *
     * _.toUpper('__foo_bar__');
     * // => '__FOO_BAR__'
     */
    function toUpper(value) {
      return toString(value).toUpperCase();
    }

    /**
     * Removes leading and trailing whitespace or specified characters from `string`.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category String
     * @param {string} [string=''] The string to trim.
     * @param {string} [chars=whitespace] The characters to trim.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {string} Returns the trimmed string.
     * @example
     *
     * _.trim('  abc  ');
     * // => 'abc'
     *
     * _.trim('-_-abc-_-', '_-');
     * // => 'abc'
     *
     * _.map(['  foo  ', '  bar  '], _.trim);
     * // => ['foo', 'bar']
     */
    function trim(string, chars, guard) {
      string = toString(string);
      if (string && (guard || chars === undefined)) {
        return string.replace(reTrim, '');
      }
      if (!string || !(chars = baseToString(chars))) {
        return string;
      }
      var strSymbols = stringToArray(string),
          chrSymbols = stringToArray(chars),
          start = charsStartIndex(strSymbols, chrSymbols),
          end = charsEndIndex(strSymbols, chrSymbols) + 1;

      return castSlice(strSymbols, start, end).join('');
    }

    /**
     * Removes trailing whitespace or specified characters from `string`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category String
     * @param {string} [string=''] The string to trim.
     * @param {string} [chars=whitespace] The characters to trim.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {string} Returns the trimmed string.
     * @example
     *
     * _.trimEnd('  abc  ');
     * // => '  abc'
     *
     * _.trimEnd('-_-abc-_-', '_-');
     * // => '-_-abc'
     */
    function trimEnd(string, chars, guard) {
      string = toString(string);
      if (string && (guard || chars === undefined)) {
        return string.replace(reTrimEnd, '');
      }
      if (!string || !(chars = baseToString(chars))) {
        return string;
      }
      var strSymbols = stringToArray(string),
          end = charsEndIndex(strSymbols, stringToArray(chars)) + 1;

      return castSlice(strSymbols, 0, end).join('');
    }

    /**
     * Removes leading whitespace or specified characters from `string`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category String
     * @param {string} [string=''] The string to trim.
     * @param {string} [chars=whitespace] The characters to trim.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {string} Returns the trimmed string.
     * @example
     *
     * _.trimStart('  abc  ');
     * // => 'abc  '
     *
     * _.trimStart('-_-abc-_-', '_-');
     * // => 'abc-_-'
     */
    function trimStart(string, chars, guard) {
      string = toString(string);
      if (string && (guard || chars === undefined)) {
        return string.replace(reTrimStart, '');
      }
      if (!string || !(chars = baseToString(chars))) {
        return string;
      }
      var strSymbols = stringToArray(string),
          start = charsStartIndex(strSymbols, stringToArray(chars));

      return castSlice(strSymbols, start).join('');
    }

    /**
     * Truncates `string` if it's longer than the given maximum string length.
     * The last characters of the truncated string are replaced with the omission
     * string which defaults to "...".
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category String
     * @param {string} [string=''] The string to truncate.
     * @param {Object} [options={}] The options object.
     * @param {number} [options.length=30] The maximum string length.
     * @param {string} [options.omission='...'] The string to indicate text is omitted.
     * @param {RegExp|string} [options.separator] The separator pattern to truncate to.
     * @returns {string} Returns the truncated string.
     * @example
     *
     * _.truncate('hi-diddly-ho there, neighborino');
     * // => 'hi-diddly-ho there, neighbo...'
     *
     * _.truncate('hi-diddly-ho there, neighborino', {
     *   'length': 24,
     *   'separator': ' '
     * });
     * // => 'hi-diddly-ho there,...'
     *
     * _.truncate('hi-diddly-ho there, neighborino', {
     *   'length': 24,
     *   'separator': /,? +/
     * });
     * // => 'hi-diddly-ho there...'
     *
     * _.truncate('hi-diddly-ho there, neighborino', {
     *   'omission': ' [...]'
     * });
     * // => 'hi-diddly-ho there, neig [...]'
     */
    function truncate(string, options) {
      var length = DEFAULT_TRUNC_LENGTH,
          omission = DEFAULT_TRUNC_OMISSION;

      if (isObject(options)) {
        var separator = 'separator' in options ? options.separator : separator;
        length = 'length' in options ? toInteger(options.length) : length;
        omission = 'omission' in options ? baseToString(options.omission) : omission;
      }
      string = toString(string);

      var strLength = string.length;
      if (hasUnicode(string)) {
        var strSymbols = stringToArray(string);
        strLength = strSymbols.length;
      }
      if (length >= strLength) {
        return string;
      }
      var end = length - stringSize(omission);
      if (end < 1) {
        return omission;
      }
      var result = strSymbols
        ? castSlice(strSymbols, 0, end).join('')
        : string.slice(0, end);

      if (separator === undefined) {
        return result + omission;
      }
      if (strSymbols) {
        end += (result.length - end);
      }
      if (isRegExp(separator)) {
        if (string.slice(end).search(separator)) {
          var match,
              substring = result;

          if (!separator.global) {
            separator = RegExp(separator.source, toString(reFlags.exec(separator)) + 'g');
          }
          separator.lastIndex = 0;
          while ((match = separator.exec(substring))) {
            var newEnd = match.index;
          }
          result = result.slice(0, newEnd === undefined ? end : newEnd);
        }
      } else if (string.indexOf(baseToString(separator), end) != end) {
        var index = result.lastIndexOf(separator);
        if (index > -1) {
          result = result.slice(0, index);
        }
      }
      return result + omission;
    }

    /**
     * The inverse of `_.escape`; this method converts the HTML entities
     * `&amp;`, `&lt;`, `&gt;`, `&quot;`, and `&#39;` in `string` to
     * their corresponding characters.
     *
     * **Note:** No other HTML entities are unescaped. To unescape additional
     * HTML entities use a third-party library like [_he_](https://mths.be/he).
     *
     * @static
     * @memberOf _
     * @since 0.6.0
     * @category String
     * @param {string} [string=''] The string to unescape.
     * @returns {string} Returns the unescaped string.
     * @example
     *
     * _.unescape('fred, barney, &amp; pebbles');
     * // => 'fred, barney, & pebbles'
     */
    function unescape(string) {
      string = toString(string);
      return (string && reHasEscapedHtml.test(string))
        ? string.replace(reEscapedHtml, unescapeHtmlChar)
        : string;
    }

    /**
     * Converts `string`, as space separated words, to upper case.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category String
     * @param {string} [string=''] The string to convert.
     * @returns {string} Returns the upper cased string.
     * @example
     *
     * _.upperCase('--foo-bar');
     * // => 'FOO BAR'
     *
     * _.upperCase('fooBar');
     * // => 'FOO BAR'
     *
     * _.upperCase('__foo_bar__');
     * // => 'FOO BAR'
     */
    var upperCase = createCompounder(function(result, word, index) {
      return result + (index ? ' ' : '') + word.toUpperCase();
    });

    /**
     * Converts the first character of `string` to upper case.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category String
     * @param {string} [string=''] The string to convert.
     * @returns {string} Returns the converted string.
     * @example
     *
     * _.upperFirst('fred');
     * // => 'Fred'
     *
     * _.upperFirst('FRED');
     * // => 'FRED'
     */
    var upperFirst = createCaseFirst('toUpperCase');

    /**
     * Splits `string` into an array of its words.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category String
     * @param {string} [string=''] The string to inspect.
     * @param {RegExp|string} [pattern] The pattern to match words.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {Array} Returns the words of `string`.
     * @example
     *
     * _.words('fred, barney, & pebbles');
     * // => ['fred', 'barney', 'pebbles']
     *
     * _.words('fred, barney, & pebbles', /[^, ]+/g);
     * // => ['fred', 'barney', '&', 'pebbles']
     */
    function words(string, pattern, guard) {
      string = toString(string);
      pattern = guard ? undefined : pattern;

      if (pattern === undefined) {
        return hasUnicodeWord(string) ? unicodeWords(string) : asciiWords(string);
      }
      return string.match(pattern) || [];
    }

    /*------------------------------------------------------------------------*/

    /**
     * Attempts to invoke `func`, returning either the result or the caught error
     * object. Any additional arguments are provided to `func` when it's invoked.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Util
     * @param {Function} func The function to attempt.
     * @param {...*} [args] The arguments to invoke `func` with.
     * @returns {*} Returns the `func` result or error object.
     * @example
     *
     * // Avoid throwing errors for invalid selectors.
     * var elements = _.attempt(function(selector) {
     *   return document.querySelectorAll(selector);
     * }, '>_>');
     *
     * if (_.isError(elements)) {
     *   elements = [];
     * }
     */
    var attempt = baseRest(function(func, args) {
      try {
        return apply(func, undefined, args);
      } catch (e) {
        return isError(e) ? e : new Error(e);
      }
    });

    /**
     * Binds methods of an object to the object itself, overwriting the existing
     * method.
     *
     * **Note:** This method doesn't set the "length" property of bound functions.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Util
     * @param {Object} object The object to bind and assign the bound methods to.
     * @param {...(string|string[])} methodNames The object method names to bind.
     * @returns {Object} Returns `object`.
     * @example
     *
     * var view = {
     *   'label': 'docs',
     *   'click': function() {
     *     console.log('clicked ' + this.label);
     *   }
     * };
     *
     * _.bindAll(view, ['click']);
     * jQuery(element).on('click', view.click);
     * // => Logs 'clicked docs' when clicked.
     */
    var bindAll = flatRest(function(object, methodNames) {
      arrayEach(methodNames, function(key) {
        key = toKey(key);
        baseAssignValue(object, key, bind(object[key], object));
      });
      return object;
    });

    /**
     * Creates a function that iterates over `pairs` and invokes the corresponding
     * function of the first predicate to return truthy. The predicate-function
     * pairs are invoked with the `this` binding and arguments of the created
     * function.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Util
     * @param {Array} pairs The predicate-function pairs.
     * @returns {Function} Returns the new composite function.
     * @example
     *
     * var func = _.cond([
     *   [_.matches({ 'a': 1 }),           _.constant('matches A')],
     *   [_.conforms({ 'b': _.isNumber }), _.constant('matches B')],
     *   [_.stubTrue,                      _.constant('no match')]
     * ]);
     *
     * func({ 'a': 1, 'b': 2 });
     * // => 'matches A'
     *
     * func({ 'a': 0, 'b': 1 });
     * // => 'matches B'
     *
     * func({ 'a': '1', 'b': '2' });
     * // => 'no match'
     */
    function cond(pairs) {
      var length = pairs == null ? 0 : pairs.length,
          toIteratee = getIteratee();

      pairs = !length ? [] : arrayMap(pairs, function(pair) {
        if (typeof pair[1] != 'function') {
          throw new TypeError(FUNC_ERROR_TEXT);
        }
        return [toIteratee(pair[0]), pair[1]];
      });

      return baseRest(function(args) {
        var index = -1;
        while (++index < length) {
          var pair = pairs[index];
          if (apply(pair[0], this, args)) {
            return apply(pair[1], this, args);
          }
        }
      });
    }

    /**
     * Creates a function that invokes the predicate properties of `source` with
     * the corresponding property values of a given object, returning `true` if
     * all predicates return truthy, else `false`.
     *
     * **Note:** The created function is equivalent to `_.conformsTo` with
     * `source` partially applied.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Util
     * @param {Object} source The object of property predicates to conform to.
     * @returns {Function} Returns the new spec function.
     * @example
     *
     * var objects = [
     *   { 'a': 2, 'b': 1 },
     *   { 'a': 1, 'b': 2 }
     * ];
     *
     * _.filter(objects, _.conforms({ 'b': function(n) { return n > 1; } }));
     * // => [{ 'a': 1, 'b': 2 }]
     */
    function conforms(source) {
      return baseConforms(baseClone(source, CLONE_DEEP_FLAG));
    }

    /**
     * Creates a function that returns `value`.
     *
     * @static
     * @memberOf _
     * @since 2.4.0
     * @category Util
     * @param {*} value The value to return from the new function.
     * @returns {Function} Returns the new constant function.
     * @example
     *
     * var objects = _.times(2, _.constant({ 'a': 1 }));
     *
     * console.log(objects);
     * // => [{ 'a': 1 }, { 'a': 1 }]
     *
     * console.log(objects[0] === objects[1]);
     * // => true
     */
    function constant(value) {
      return function() {
        return value;
      };
    }

    /**
     * Checks `value` to determine whether a default value should be returned in
     * its place. The `defaultValue` is returned if `value` is `NaN`, `null`,
     * or `undefined`.
     *
     * @static
     * @memberOf _
     * @since 4.14.0
     * @category Util
     * @param {*} value The value to check.
     * @param {*} defaultValue The default value.
     * @returns {*} Returns the resolved value.
     * @example
     *
     * _.defaultTo(1, 10);
     * // => 1
     *
     * _.defaultTo(undefined, 10);
     * // => 10
     */
    function defaultTo(value, defaultValue) {
      return (value == null || value !== value) ? defaultValue : value;
    }

    /**
     * Creates a function that returns the result of invoking the given functions
     * with the `this` binding of the created function, where each successive
     * invocation is supplied the return value of the previous.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Util
     * @param {...(Function|Function[])} [funcs] The functions to invoke.
     * @returns {Function} Returns the new composite function.
     * @see _.flowRight
     * @example
     *
     * function square(n) {
     *   return n * n;
     * }
     *
     * var addSquare = _.flow([_.add, square]);
     * addSquare(1, 2);
     * // => 9
     */
    var flow = createFlow();

    /**
     * This method is like `_.flow` except that it creates a function that
     * invokes the given functions from right to left.
     *
     * @static
     * @since 3.0.0
     * @memberOf _
     * @category Util
     * @param {...(Function|Function[])} [funcs] The functions to invoke.
     * @returns {Function} Returns the new composite function.
     * @see _.flow
     * @example
     *
     * function square(n) {
     *   return n * n;
     * }
     *
     * var addSquare = _.flowRight([square, _.add]);
     * addSquare(1, 2);
     * // => 9
     */
    var flowRight = createFlow(true);

    /**
     * This method returns the first argument it receives.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Util
     * @param {*} value Any value.
     * @returns {*} Returns `value`.
     * @example
     *
     * var object = { 'a': 1 };
     *
     * console.log(_.identity(object) === object);
     * // => true
     */
    function identity(value) {
      return value;
    }

    /**
     * Creates a function that invokes `func` with the arguments of the created
     * function. If `func` is a property name, the created function returns the
     * property value for a given element. If `func` is an array or object, the
     * created function returns `true` for elements that contain the equivalent
     * source properties, otherwise it returns `false`.
     *
     * @static
     * @since 4.0.0
     * @memberOf _
     * @category Util
     * @param {*} [func=_.identity] The value to convert to a callback.
     * @returns {Function} Returns the callback.
     * @example
     *
     * var users = [
     *   { 'user': 'barney', 'age': 36, 'active': true },
     *   { 'user': 'fred',   'age': 40, 'active': false }
     * ];
     *
     * // The `_.matches` iteratee shorthand.
     * _.filter(users, _.iteratee({ 'user': 'barney', 'active': true }));
     * // => [{ 'user': 'barney', 'age': 36, 'active': true }]
     *
     * // The `_.matchesProperty` iteratee shorthand.
     * _.filter(users, _.iteratee(['user', 'fred']));
     * // => [{ 'user': 'fred', 'age': 40 }]
     *
     * // The `_.property` iteratee shorthand.
     * _.map(users, _.iteratee('user'));
     * // => ['barney', 'fred']
     *
     * // Create custom iteratee shorthands.
     * _.iteratee = _.wrap(_.iteratee, function(iteratee, func) {
     *   return !_.isRegExp(func) ? iteratee(func) : function(string) {
     *     return func.test(string);
     *   };
     * });
     *
     * _.filter(['abc', 'def'], /ef/);
     * // => ['def']
     */
    function iteratee(func) {
      return baseIteratee(typeof func == 'function' ? func : baseClone(func, CLONE_DEEP_FLAG));
    }

    /**
     * Creates a function that performs a partial deep comparison between a given
     * object and `source`, returning `true` if the given object has equivalent
     * property values, else `false`.
     *
     * **Note:** The created function is equivalent to `_.isMatch` with `source`
     * partially applied.
     *
     * Partial comparisons will match empty array and empty object `source`
     * values against any array or object value, respectively. See `_.isEqual`
     * for a list of supported value comparisons.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Util
     * @param {Object} source The object of property values to match.
     * @returns {Function} Returns the new spec function.
     * @example
     *
     * var objects = [
     *   { 'a': 1, 'b': 2, 'c': 3 },
     *   { 'a': 4, 'b': 5, 'c': 6 }
     * ];
     *
     * _.filter(objects, _.matches({ 'a': 4, 'c': 6 }));
     * // => [{ 'a': 4, 'b': 5, 'c': 6 }]
     */
    function matches(source) {
      return baseMatches(baseClone(source, CLONE_DEEP_FLAG));
    }

    /**
     * Creates a function that performs a partial deep comparison between the
     * value at `path` of a given object to `srcValue`, returning `true` if the
     * object value is equivalent, else `false`.
     *
     * **Note:** Partial comparisons will match empty array and empty object
     * `srcValue` values against any array or object value, respectively. See
     * `_.isEqual` for a list of supported value comparisons.
     *
     * @static
     * @memberOf _
     * @since 3.2.0
     * @category Util
     * @param {Array|string} path The path of the property to get.
     * @param {*} srcValue The value to match.
     * @returns {Function} Returns the new spec function.
     * @example
     *
     * var objects = [
     *   { 'a': 1, 'b': 2, 'c': 3 },
     *   { 'a': 4, 'b': 5, 'c': 6 }
     * ];
     *
     * _.find(objects, _.matchesProperty('a', 4));
     * // => { 'a': 4, 'b': 5, 'c': 6 }
     */
    function matchesProperty(path, srcValue) {
      return baseMatchesProperty(path, baseClone(srcValue, CLONE_DEEP_FLAG));
    }

    /**
     * Creates a function that invokes the method at `path` of a given object.
     * Any additional arguments are provided to the invoked method.
     *
     * @static
     * @memberOf _
     * @since 3.7.0
     * @category Util
     * @param {Array|string} path The path of the method to invoke.
     * @param {...*} [args] The arguments to invoke the method with.
     * @returns {Function} Returns the new invoker function.
     * @example
     *
     * var objects = [
     *   { 'a': { 'b': _.constant(2) } },
     *   { 'a': { 'b': _.constant(1) } }
     * ];
     *
     * _.map(objects, _.method('a.b'));
     * // => [2, 1]
     *
     * _.map(objects, _.method(['a', 'b']));
     * // => [2, 1]
     */
    var method = baseRest(function(path, args) {
      return function(object) {
        return baseInvoke(object, path, args);
      };
    });

    /**
     * The opposite of `_.method`; this method creates a function that invokes
     * the method at a given path of `object`. Any additional arguments are
     * provided to the invoked method.
     *
     * @static
     * @memberOf _
     * @since 3.7.0
     * @category Util
     * @param {Object} object The object to query.
     * @param {...*} [args] The arguments to invoke the method with.
     * @returns {Function} Returns the new invoker function.
     * @example
     *
     * var array = _.times(3, _.constant),
     *     object = { 'a': array, 'b': array, 'c': array };
     *
     * _.map(['a[2]', 'c[0]'], _.methodOf(object));
     * // => [2, 0]
     *
     * _.map([['a', '2'], ['c', '0']], _.methodOf(object));
     * // => [2, 0]
     */
    var methodOf = baseRest(function(object, args) {
      return function(path) {
        return baseInvoke(object, path, args);
      };
    });

    /**
     * Adds all own enumerable string keyed function properties of a source
     * object to the destination object. If `object` is a function, then methods
     * are added to its prototype as well.
     *
     * **Note:** Use `_.runInContext` to create a pristine `lodash` function to
     * avoid conflicts caused by modifying the original.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Util
     * @param {Function|Object} [object=lodash] The destination object.
     * @param {Object} source The object of functions to add.
     * @param {Object} [options={}] The options object.
     * @param {boolean} [options.chain=true] Specify whether mixins are chainable.
     * @returns {Function|Object} Returns `object`.
     * @example
     *
     * function vowels(string) {
     *   return _.filter(string, function(v) {
     *     return /[aeiou]/i.test(v);
     *   });
     * }
     *
     * _.mixin({ 'vowels': vowels });
     * _.vowels('fred');
     * // => ['e']
     *
     * _('fred').vowels().value();
     * // => ['e']
     *
     * _.mixin({ 'vowels': vowels }, { 'chain': false });
     * _('fred').vowels();
     * // => ['e']
     */
    function mixin(object, source, options) {
      var props = keys(source),
          methodNames = baseFunctions(source, props);

      if (options == null &&
          !(isObject(source) && (methodNames.length || !props.length))) {
        options = source;
        source = object;
        object = this;
        methodNames = baseFunctions(source, keys(source));
      }
      var chain = !(isObject(options) && 'chain' in options) || !!options.chain,
          isFunc = isFunction(object);

      arrayEach(methodNames, function(methodName) {
        var func = source[methodName];
        object[methodName] = func;
        if (isFunc) {
          object.prototype[methodName] = function() {
            var chainAll = this.__chain__;
            if (chain || chainAll) {
              var result = object(this.__wrapped__),
                  actions = result.__actions__ = copyArray(this.__actions__);

              actions.push({ 'func': func, 'args': arguments, 'thisArg': object });
              result.__chain__ = chainAll;
              return result;
            }
            return func.apply(object, arrayPush([this.value()], arguments));
          };
        }
      });

      return object;
    }

    /**
     * Reverts the `_` variable to its previous value and returns a reference to
     * the `lodash` function.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Util
     * @returns {Function} Returns the `lodash` function.
     * @example
     *
     * var lodash = _.noConflict();
     */
    function noConflict() {
      if (root._ === this) {
        root._ = oldDash;
      }
      return this;
    }

    /**
     * This method returns `undefined`.
     *
     * @static
     * @memberOf _
     * @since 2.3.0
     * @category Util
     * @example
     *
     * _.times(2, _.noop);
     * // => [undefined, undefined]
     */
    function noop() {
      // No operation performed.
    }

    /**
     * Creates a function that gets the argument at index `n`. If `n` is negative,
     * the nth argument from the end is returned.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Util
     * @param {number} [n=0] The index of the argument to return.
     * @returns {Function} Returns the new pass-thru function.
     * @example
     *
     * var func = _.nthArg(1);
     * func('a', 'b', 'c', 'd');
     * // => 'b'
     *
     * var func = _.nthArg(-2);
     * func('a', 'b', 'c', 'd');
     * // => 'c'
     */
    function nthArg(n) {
      n = toInteger(n);
      return baseRest(function(args) {
        return baseNth(args, n);
      });
    }

    /**
     * Creates a function that invokes `iteratees` with the arguments it receives
     * and returns their results.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Util
     * @param {...(Function|Function[])} [iteratees=[_.identity]]
     *  The iteratees to invoke.
     * @returns {Function} Returns the new function.
     * @example
     *
     * var func = _.over([Math.max, Math.min]);
     *
     * func(1, 2, 3, 4);
     * // => [4, 1]
     */
    var over = createOver(arrayMap);

    /**
     * Creates a function that checks if **all** of the `predicates` return
     * truthy when invoked with the arguments it receives.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Util
     * @param {...(Function|Function[])} [predicates=[_.identity]]
     *  The predicates to check.
     * @returns {Function} Returns the new function.
     * @example
     *
     * var func = _.overEvery([Boolean, isFinite]);
     *
     * func('1');
     * // => true
     *
     * func(null);
     * // => false
     *
     * func(NaN);
     * // => false
     */
    var overEvery = createOver(arrayEvery);

    /**
     * Creates a function that checks if **any** of the `predicates` return
     * truthy when invoked with the arguments it receives.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Util
     * @param {...(Function|Function[])} [predicates=[_.identity]]
     *  The predicates to check.
     * @returns {Function} Returns the new function.
     * @example
     *
     * var func = _.overSome([Boolean, isFinite]);
     *
     * func('1');
     * // => true
     *
     * func(null);
     * // => true
     *
     * func(NaN);
     * // => false
     */
    var overSome = createOver(arraySome);

    /**
     * Creates a function that returns the value at `path` of a given object.
     *
     * @static
     * @memberOf _
     * @since 2.4.0
     * @category Util
     * @param {Array|string} path The path of the property to get.
     * @returns {Function} Returns the new accessor function.
     * @example
     *
     * var objects = [
     *   { 'a': { 'b': 2 } },
     *   { 'a': { 'b': 1 } }
     * ];
     *
     * _.map(objects, _.property('a.b'));
     * // => [2, 1]
     *
     * _.map(_.sortBy(objects, _.property(['a', 'b'])), 'a.b');
     * // => [1, 2]
     */
    function property(path) {
      return isKey(path) ? baseProperty(toKey(path)) : basePropertyDeep(path);
    }

    /**
     * The opposite of `_.property`; this method creates a function that returns
     * the value at a given path of `object`.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Util
     * @param {Object} object The object to query.
     * @returns {Function} Returns the new accessor function.
     * @example
     *
     * var array = [0, 1, 2],
     *     object = { 'a': array, 'b': array, 'c': array };
     *
     * _.map(['a[2]', 'c[0]'], _.propertyOf(object));
     * // => [2, 0]
     *
     * _.map([['a', '2'], ['c', '0']], _.propertyOf(object));
     * // => [2, 0]
     */
    function propertyOf(object) {
      return function(path) {
        return object == null ? undefined : baseGet(object, path);
      };
    }

    /**
     * Creates an array of numbers (positive and/or negative) progressing from
     * `start` up to, but not including, `end`. A step of `-1` is used if a negative
     * `start` is specified without an `end` or `step`. If `end` is not specified,
     * it's set to `start` with `start` then set to `0`.
     *
     * **Note:** JavaScript follows the IEEE-754 standard for resolving
     * floating-point values which can produce unexpected results.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Util
     * @param {number} [start=0] The start of the range.
     * @param {number} end The end of the range.
     * @param {number} [step=1] The value to increment or decrement by.
     * @returns {Array} Returns the range of numbers.
     * @see _.inRange, _.rangeRight
     * @example
     *
     * _.range(4);
     * // => [0, 1, 2, 3]
     *
     * _.range(-4);
     * // => [0, -1, -2, -3]
     *
     * _.range(1, 5);
     * // => [1, 2, 3, 4]
     *
     * _.range(0, 20, 5);
     * // => [0, 5, 10, 15]
     *
     * _.range(0, -4, -1);
     * // => [0, -1, -2, -3]
     *
     * _.range(1, 4, 0);
     * // => [1, 1, 1]
     *
     * _.range(0);
     * // => []
     */
    var range = createRange();

    /**
     * This method is like `_.range` except that it populates values in
     * descending order.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Util
     * @param {number} [start=0] The start of the range.
     * @param {number} end The end of the range.
     * @param {number} [step=1] The value to increment or decrement by.
     * @returns {Array} Returns the range of numbers.
     * @see _.inRange, _.range
     * @example
     *
     * _.rangeRight(4);
     * // => [3, 2, 1, 0]
     *
     * _.rangeRight(-4);
     * // => [-3, -2, -1, 0]
     *
     * _.rangeRight(1, 5);
     * // => [4, 3, 2, 1]
     *
     * _.rangeRight(0, 20, 5);
     * // => [15, 10, 5, 0]
     *
     * _.rangeRight(0, -4, -1);
     * // => [-3, -2, -1, 0]
     *
     * _.rangeRight(1, 4, 0);
     * // => [1, 1, 1]
     *
     * _.rangeRight(0);
     * // => []
     */
    var rangeRight = createRange(true);

    /**
     * This method returns a new empty array.
     *
     * @static
     * @memberOf _
     * @since 4.13.0
     * @category Util
     * @returns {Array} Returns the new empty array.
     * @example
     *
     * var arrays = _.times(2, _.stubArray);
     *
     * console.log(arrays);
     * // => [[], []]
     *
     * console.log(arrays[0] === arrays[1]);
     * // => false
     */
    function stubArray() {
      return [];
    }

    /**
     * This method returns `false`.
     *
     * @static
     * @memberOf _
     * @since 4.13.0
     * @category Util
     * @returns {boolean} Returns `false`.
     * @example
     *
     * _.times(2, _.stubFalse);
     * // => [false, false]
     */
    function stubFalse() {
      return false;
    }

    /**
     * This method returns a new empty object.
     *
     * @static
     * @memberOf _
     * @since 4.13.0
     * @category Util
     * @returns {Object} Returns the new empty object.
     * @example
     *
     * var objects = _.times(2, _.stubObject);
     *
     * console.log(objects);
     * // => [{}, {}]
     *
     * console.log(objects[0] === objects[1]);
     * // => false
     */
    function stubObject() {
      return {};
    }

    /**
     * This method returns an empty string.
     *
     * @static
     * @memberOf _
     * @since 4.13.0
     * @category Util
     * @returns {string} Returns the empty string.
     * @example
     *
     * _.times(2, _.stubString);
     * // => ['', '']
     */
    function stubString() {
      return '';
    }

    /**
     * This method returns `true`.
     *
     * @static
     * @memberOf _
     * @since 4.13.0
     * @category Util
     * @returns {boolean} Returns `true`.
     * @example
     *
     * _.times(2, _.stubTrue);
     * // => [true, true]
     */
    function stubTrue() {
      return true;
    }

    /**
     * Invokes the iteratee `n` times, returning an array of the results of
     * each invocation. The iteratee is invoked with one argument; (index).
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Util
     * @param {number} n The number of times to invoke `iteratee`.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @returns {Array} Returns the array of results.
     * @example
     *
     * _.times(3, String);
     * // => ['0', '1', '2']
     *
     *  _.times(4, _.constant(0));
     * // => [0, 0, 0, 0]
     */
    function times(n, iteratee) {
      n = toInteger(n);
      if (n < 1 || n > MAX_SAFE_INTEGER) {
        return [];
      }
      var index = MAX_ARRAY_LENGTH,
          length = nativeMin(n, MAX_ARRAY_LENGTH);

      iteratee = getIteratee(iteratee);
      n -= MAX_ARRAY_LENGTH;

      var result = baseTimes(length, iteratee);
      while (++index < n) {
        iteratee(index);
      }
      return result;
    }

    /**
     * Converts `value` to a property path array.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Util
     * @param {*} value The value to convert.
     * @returns {Array} Returns the new property path array.
     * @example
     *
     * _.toPath('a.b.c');
     * // => ['a', 'b', 'c']
     *
     * _.toPath('a[0].b.c');
     * // => ['a', '0', 'b', 'c']
     */
    function toPath(value) {
      if (isArray(value)) {
        return arrayMap(value, toKey);
      }
      return isSymbol(value) ? [value] : copyArray(stringToPath(toString(value)));
    }

    /**
     * Generates a unique ID. If `prefix` is given, the ID is appended to it.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Util
     * @param {string} [prefix=''] The value to prefix the ID with.
     * @returns {string} Returns the unique ID.
     * @example
     *
     * _.uniqueId('contact_');
     * // => 'contact_104'
     *
     * _.uniqueId();
     * // => '105'
     */
    function uniqueId(prefix) {
      var id = ++idCounter;
      return toString(prefix) + id;
    }

    /*------------------------------------------------------------------------*/

    /**
     * Adds two numbers.
     *
     * @static
     * @memberOf _
     * @since 3.4.0
     * @category Math
     * @param {number} augend The first number in an addition.
     * @param {number} addend The second number in an addition.
     * @returns {number} Returns the total.
     * @example
     *
     * _.add(6, 4);
     * // => 10
     */
    var add = createMathOperation(function(augend, addend) {
      return augend + addend;
    }, 0);

    /**
     * Computes `number` rounded up to `precision`.
     *
     * @static
     * @memberOf _
     * @since 3.10.0
     * @category Math
     * @param {number} number The number to round up.
     * @param {number} [precision=0] The precision to round up to.
     * @returns {number} Returns the rounded up number.
     * @example
     *
     * _.ceil(4.006);
     * // => 5
     *
     * _.ceil(6.004, 2);
     * // => 6.01
     *
     * _.ceil(6040, -2);
     * // => 6100
     */
    var ceil = createRound('ceil');

    /**
     * Divide two numbers.
     *
     * @static
     * @memberOf _
     * @since 4.7.0
     * @category Math
     * @param {number} dividend The first number in a division.
     * @param {number} divisor The second number in a division.
     * @returns {number} Returns the quotient.
     * @example
     *
     * _.divide(6, 4);
     * // => 1.5
     */
    var divide = createMathOperation(function(dividend, divisor) {
      return dividend / divisor;
    }, 1);

    /**
     * Computes `number` rounded down to `precision`.
     *
     * @static
     * @memberOf _
     * @since 3.10.0
     * @category Math
     * @param {number} number The number to round down.
     * @param {number} [precision=0] The precision to round down to.
     * @returns {number} Returns the rounded down number.
     * @example
     *
     * _.floor(4.006);
     * // => 4
     *
     * _.floor(0.046, 2);
     * // => 0.04
     *
     * _.floor(4060, -2);
     * // => 4000
     */
    var floor = createRound('floor');

    /**
     * Computes the maximum value of `array`. If `array` is empty or falsey,
     * `undefined` is returned.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Math
     * @param {Array} array The array to iterate over.
     * @returns {*} Returns the maximum value.
     * @example
     *
     * _.max([4, 2, 8, 6]);
     * // => 8
     *
     * _.max([]);
     * // => undefined
     */
    function max(array) {
      return (array && array.length)
        ? baseExtremum(array, identity, baseGt)
        : undefined;
    }

    /**
     * This method is like `_.max` except that it accepts `iteratee` which is
     * invoked for each element in `array` to generate the criterion by which
     * the value is ranked. The iteratee is invoked with one argument: (value).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Math
     * @param {Array} array The array to iterate over.
     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
     * @returns {*} Returns the maximum value.
     * @example
     *
     * var objects = [{ 'n': 1 }, { 'n': 2 }];
     *
     * _.maxBy(objects, function(o) { return o.n; });
     * // => { 'n': 2 }
     *
     * // The `_.property` iteratee shorthand.
     * _.maxBy(objects, 'n');
     * // => { 'n': 2 }
     */
    function maxBy(array, iteratee) {
      return (array && array.length)
        ? baseExtremum(array, getIteratee(iteratee, 2), baseGt)
        : undefined;
    }

    /**
     * Computes the mean of the values in `array`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Math
     * @param {Array} array The array to iterate over.
     * @returns {number} Returns the mean.
     * @example
     *
     * _.mean([4, 2, 8, 6]);
     * // => 5
     */
    function mean(array) {
      return baseMean(array, identity);
    }

    /**
     * This method is like `_.mean` except that it accepts `iteratee` which is
     * invoked for each element in `array` to generate the value to be averaged.
     * The iteratee is invoked with one argument: (value).
     *
     * @static
     * @memberOf _
     * @since 4.7.0
     * @category Math
     * @param {Array} array The array to iterate over.
     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
     * @returns {number} Returns the mean.
     * @example
     *
     * var objects = [{ 'n': 4 }, { 'n': 2 }, { 'n': 8 }, { 'n': 6 }];
     *
     * _.meanBy(objects, function(o) { return o.n; });
     * // => 5
     *
     * // The `_.property` iteratee shorthand.
     * _.meanBy(objects, 'n');
     * // => 5
     */
    function meanBy(array, iteratee) {
      return baseMean(array, getIteratee(iteratee, 2));
    }

    /**
     * Computes the minimum value of `array`. If `array` is empty or falsey,
     * `undefined` is returned.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Math
     * @param {Array} array The array to iterate over.
     * @returns {*} Returns the minimum value.
     * @example
     *
     * _.min([4, 2, 8, 6]);
     * // => 2
     *
     * _.min([]);
     * // => undefined
     */
    function min(array) {
      return (array && array.length)
        ? baseExtremum(array, identity, baseLt)
        : undefined;
    }

    /**
     * This method is like `_.min` except that it accepts `iteratee` which is
     * invoked for each element in `array` to generate the criterion by which
     * the value is ranked. The iteratee is invoked with one argument: (value).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Math
     * @param {Array} array The array to iterate over.
     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
     * @returns {*} Returns the minimum value.
     * @example
     *
     * var objects = [{ 'n': 1 }, { 'n': 2 }];
     *
     * _.minBy(objects, function(o) { return o.n; });
     * // => { 'n': 1 }
     *
     * // The `_.property` iteratee shorthand.
     * _.minBy(objects, 'n');
     * // => { 'n': 1 }
     */
    function minBy(array, iteratee) {
      return (array && array.length)
        ? baseExtremum(array, getIteratee(iteratee, 2), baseLt)
        : undefined;
    }

    /**
     * Multiply two numbers.
     *
     * @static
     * @memberOf _
     * @since 4.7.0
     * @category Math
     * @param {number} multiplier The first number in a multiplication.
     * @param {number} multiplicand The second number in a multiplication.
     * @returns {number} Returns the product.
     * @example
     *
     * _.multiply(6, 4);
     * // => 24
     */
    var multiply = createMathOperation(function(multiplier, multiplicand) {
      return multiplier * multiplicand;
    }, 1);

    /**
     * Computes `number` rounded to `precision`.
     *
     * @static
     * @memberOf _
     * @since 3.10.0
     * @category Math
     * @param {number} number The number to round.
     * @param {number} [precision=0] The precision to round to.
     * @returns {number} Returns the rounded number.
     * @example
     *
     * _.round(4.006);
     * // => 4
     *
     * _.round(4.006, 2);
     * // => 4.01
     *
     * _.round(4060, -2);
     * // => 4100
     */
    var round = createRound('round');

    /**
     * Subtract two numbers.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Math
     * @param {number} minuend The first number in a subtraction.
     * @param {number} subtrahend The second number in a subtraction.
     * @returns {number} Returns the difference.
     * @example
     *
     * _.subtract(6, 4);
     * // => 2
     */
    var subtract = createMathOperation(function(minuend, subtrahend) {
      return minuend - subtrahend;
    }, 0);

    /**
     * Computes the sum of the values in `array`.
     *
     * @static
     * @memberOf _
     * @since 3.4.0
     * @category Math
     * @param {Array} array The array to iterate over.
     * @returns {number} Returns the sum.
     * @example
     *
     * _.sum([4, 2, 8, 6]);
     * // => 20
     */
    function sum(array) {
      return (array && array.length)
        ? baseSum(array, identity)
        : 0;
    }

    /**
     * This method is like `_.sum` except that it accepts `iteratee` which is
     * invoked for each element in `array` to generate the value to be summed.
     * The iteratee is invoked with one argument: (value).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Math
     * @param {Array} array The array to iterate over.
     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
     * @returns {number} Returns the sum.
     * @example
     *
     * var objects = [{ 'n': 4 }, { 'n': 2 }, { 'n': 8 }, { 'n': 6 }];
     *
     * _.sumBy(objects, function(o) { return o.n; });
     * // => 20
     *
     * // The `_.property` iteratee shorthand.
     * _.sumBy(objects, 'n');
     * // => 20
     */
    function sumBy(array, iteratee) {
      return (array && array.length)
        ? baseSum(array, getIteratee(iteratee, 2))
        : 0;
    }

    /*------------------------------------------------------------------------*/

    // Add methods that return wrapped values in chain sequences.
    lodash.after = after;
    lodash.ary = ary;
    lodash.assign = assign;
    lodash.assignIn = assignIn;
    lodash.assignInWith = assignInWith;
    lodash.assignWith = assignWith;
    lodash.at = at;
    lodash.before = before;
    lodash.bind = bind;
    lodash.bindAll = bindAll;
    lodash.bindKey = bindKey;
    lodash.castArray = castArray;
    lodash.chain = chain;
    lodash.chunk = chunk;
    lodash.compact = compact;
    lodash.concat = concat;
    lodash.cond = cond;
    lodash.conforms = conforms;
    lodash.constant = constant;
    lodash.countBy = countBy;
    lodash.create = create;
    lodash.curry = curry;
    lodash.curryRight = curryRight;
    lodash.debounce = debounce;
    lodash.defaults = defaults;
    lodash.defaultsDeep = defaultsDeep;
    lodash.defer = defer;
    lodash.delay = delay;
    lodash.difference = difference;
    lodash.differenceBy = differenceBy;
    lodash.differenceWith = differenceWith;
    lodash.drop = drop;
    lodash.dropRight = dropRight;
    lodash.dropRightWhile = dropRightWhile;
    lodash.dropWhile = dropWhile;
    lodash.fill = fill;
    lodash.filter = filter;
    lodash.flatMap = flatMap;
    lodash.flatMapDeep = flatMapDeep;
    lodash.flatMapDepth = flatMapDepth;
    lodash.flatten = flatten;
    lodash.flattenDeep = flattenDeep;
    lodash.flattenDepth = flattenDepth;
    lodash.flip = flip;
    lodash.flow = flow;
    lodash.flowRight = flowRight;
    lodash.fromPairs = fromPairs;
    lodash.functions = functions;
    lodash.functionsIn = functionsIn;
    lodash.groupBy = groupBy;
    lodash.initial = initial;
    lodash.intersection = intersection;
    lodash.intersectionBy = intersectionBy;
    lodash.intersectionWith = intersectionWith;
    lodash.invert = invert;
    lodash.invertBy = invertBy;
    lodash.invokeMap = invokeMap;
    lodash.iteratee = iteratee;
    lodash.keyBy = keyBy;
    lodash.keys = keys;
    lodash.keysIn = keysIn;
    lodash.map = map;
    lodash.mapKeys = mapKeys;
    lodash.mapValues = mapValues;
    lodash.matches = matches;
    lodash.matchesProperty = matchesProperty;
    lodash.memoize = memoize;
    lodash.merge = merge;
    lodash.mergeWith = mergeWith;
    lodash.method = method;
    lodash.methodOf = methodOf;
    lodash.mixin = mixin;
    lodash.negate = negate;
    lodash.nthArg = nthArg;
    lodash.omit = omit;
    lodash.omitBy = omitBy;
    lodash.once = once;
    lodash.orderBy = orderBy;
    lodash.over = over;
    lodash.overArgs = overArgs;
    lodash.overEvery = overEvery;
    lodash.overSome = overSome;
    lodash.partial = partial;
    lodash.partialRight = partialRight;
    lodash.partition = partition;
    lodash.pick = pick;
    lodash.pickBy = pickBy;
    lodash.property = property;
    lodash.propertyOf = propertyOf;
    lodash.pull = pull;
    lodash.pullAll = pullAll;
    lodash.pullAllBy = pullAllBy;
    lodash.pullAllWith = pullAllWith;
    lodash.pullAt = pullAt;
    lodash.range = range;
    lodash.rangeRight = rangeRight;
    lodash.rearg = rearg;
    lodash.reject = reject;
    lodash.remove = remove;
    lodash.rest = rest;
    lodash.reverse = reverse;
    lodash.sampleSize = sampleSize;
    lodash.set = set;
    lodash.setWith = setWith;
    lodash.shuffle = shuffle;
    lodash.slice = slice;
    lodash.sortBy = sortBy;
    lodash.sortedUniq = sortedUniq;
    lodash.sortedUniqBy = sortedUniqBy;
    lodash.split = split;
    lodash.spread = spread;
    lodash.tail = tail;
    lodash.take = take;
    lodash.takeRight = takeRight;
    lodash.takeRightWhile = takeRightWhile;
    lodash.takeWhile = takeWhile;
    lodash.tap = tap;
    lodash.throttle = throttle;
    lodash.thru = thru;
    lodash.toArray = toArray;
    lodash.toPairs = toPairs;
    lodash.toPairsIn = toPairsIn;
    lodash.toPath = toPath;
    lodash.toPlainObject = toPlainObject;
    lodash.transform = transform;
    lodash.unary = unary;
    lodash.union = union;
    lodash.unionBy = unionBy;
    lodash.unionWith = unionWith;
    lodash.uniq = uniq;
    lodash.uniqBy = uniqBy;
    lodash.uniqWith = uniqWith;
    lodash.unset = unset;
    lodash.unzip = unzip;
    lodash.unzipWith = unzipWith;
    lodash.update = update;
    lodash.updateWith = updateWith;
    lodash.values = values;
    lodash.valuesIn = valuesIn;
    lodash.without = without;
    lodash.words = words;
    lodash.wrap = wrap;
    lodash.xor = xor;
    lodash.xorBy = xorBy;
    lodash.xorWith = xorWith;
    lodash.zip = zip;
    lodash.zipObject = zipObject;
    lodash.zipObjectDeep = zipObjectDeep;
    lodash.zipWith = zipWith;

    // Add aliases.
    lodash.entries = toPairs;
    lodash.entriesIn = toPairsIn;
    lodash.extend = assignIn;
    lodash.extendWith = assignInWith;

    // Add methods to `lodash.prototype`.
    mixin(lodash, lodash);

    /*------------------------------------------------------------------------*/

    // Add methods that return unwrapped values in chain sequences.
    lodash.add = add;
    lodash.attempt = attempt;
    lodash.camelCase = camelCase;
    lodash.capitalize = capitalize;
    lodash.ceil = ceil;
    lodash.clamp = clamp;
    lodash.clone = clone;
    lodash.cloneDeep = cloneDeep;
    lodash.cloneDeepWith = cloneDeepWith;
    lodash.cloneWith = cloneWith;
    lodash.conformsTo = conformsTo;
    lodash.deburr = deburr;
    lodash.defaultTo = defaultTo;
    lodash.divide = divide;
    lodash.endsWith = endsWith;
    lodash.eq = eq;
    lodash.escape = escape;
    lodash.escapeRegExp = escapeRegExp;
    lodash.every = every;
    lodash.find = find;
    lodash.findIndex = findIndex;
    lodash.findKey = findKey;
    lodash.findLast = findLast;
    lodash.findLastIndex = findLastIndex;
    lodash.findLastKey = findLastKey;
    lodash.floor = floor;
    lodash.forEach = forEach;
    lodash.forEachRight = forEachRight;
    lodash.forIn = forIn;
    lodash.forInRight = forInRight;
    lodash.forOwn = forOwn;
    lodash.forOwnRight = forOwnRight;
    lodash.get = get;
    lodash.gt = gt;
    lodash.gte = gte;
    lodash.has = has;
    lodash.hasIn = hasIn;
    lodash.head = head;
    lodash.identity = identity;
    lodash.includes = includes;
    lodash.indexOf = indexOf;
    lodash.inRange = inRange;
    lodash.invoke = invoke;
    lodash.isArguments = isArguments;
    lodash.isArray = isArray;
    lodash.isArrayBuffer = isArrayBuffer;
    lodash.isArrayLike = isArrayLike;
    lodash.isArrayLikeObject = isArrayLikeObject;
    lodash.isBoolean = isBoolean;
    lodash.isBuffer = isBuffer;
    lodash.isDate = isDate;
    lodash.isElement = isElement;
    lodash.isEmpty = isEmpty;
    lodash.isEqual = isEqual;
    lodash.isEqualWith = isEqualWith;
    lodash.isError = isError;
    lodash.isFinite = isFinite;
    lodash.isFunction = isFunction;
    lodash.isInteger = isInteger;
    lodash.isLength = isLength;
    lodash.isMap = isMap;
    lodash.isMatch = isMatch;
    lodash.isMatchWith = isMatchWith;
    lodash.isNaN = isNaN;
    lodash.isNative = isNative;
    lodash.isNil = isNil;
    lodash.isNull = isNull;
    lodash.isNumber = isNumber;
    lodash.isObject = isObject;
    lodash.isObjectLike = isObjectLike;
    lodash.isPlainObject = isPlainObject;
    lodash.isRegExp = isRegExp;
    lodash.isSafeInteger = isSafeInteger;
    lodash.isSet = isSet;
    lodash.isString = isString;
    lodash.isSymbol = isSymbol;
    lodash.isTypedArray = isTypedArray;
    lodash.isUndefined = isUndefined;
    lodash.isWeakMap = isWeakMap;
    lodash.isWeakSet = isWeakSet;
    lodash.join = join;
    lodash.kebabCase = kebabCase;
    lodash.last = last;
    lodash.lastIndexOf = lastIndexOf;
    lodash.lowerCase = lowerCase;
    lodash.lowerFirst = lowerFirst;
    lodash.lt = lt;
    lodash.lte = lte;
    lodash.max = max;
    lodash.maxBy = maxBy;
    lodash.mean = mean;
    lodash.meanBy = meanBy;
    lodash.min = min;
    lodash.minBy = minBy;
    lodash.stubArray = stubArray;
    lodash.stubFalse = stubFalse;
    lodash.stubObject = stubObject;
    lodash.stubString = stubString;
    lodash.stubTrue = stubTrue;
    lodash.multiply = multiply;
    lodash.nth = nth;
    lodash.noConflict = noConflict;
    lodash.noop = noop;
    lodash.now = now;
    lodash.pad = pad;
    lodash.padEnd = padEnd;
    lodash.padStart = padStart;
    lodash.parseInt = parseInt;
    lodash.random = random;
    lodash.reduce = reduce;
    lodash.reduceRight = reduceRight;
    lodash.repeat = repeat;
    lodash.replace = replace;
    lodash.result = result;
    lodash.round = round;
    lodash.runInContext = runInContext;
    lodash.sample = sample;
    lodash.size = size;
    lodash.snakeCase = snakeCase;
    lodash.some = some;
    lodash.sortedIndex = sortedIndex;
    lodash.sortedIndexBy = sortedIndexBy;
    lodash.sortedIndexOf = sortedIndexOf;
    lodash.sortedLastIndex = sortedLastIndex;
    lodash.sortedLastIndexBy = sortedLastIndexBy;
    lodash.sortedLastIndexOf = sortedLastIndexOf;
    lodash.startCase = startCase;
    lodash.startsWith = startsWith;
    lodash.subtract = subtract;
    lodash.sum = sum;
    lodash.sumBy = sumBy;
    lodash.template = template;
    lodash.times = times;
    lodash.toFinite = toFinite;
    lodash.toInteger = toInteger;
    lodash.toLength = toLength;
    lodash.toLower = toLower;
    lodash.toNumber = toNumber;
    lodash.toSafeInteger = toSafeInteger;
    lodash.toString = toString;
    lodash.toUpper = toUpper;
    lodash.trim = trim;
    lodash.trimEnd = trimEnd;
    lodash.trimStart = trimStart;
    lodash.truncate = truncate;
    lodash.unescape = unescape;
    lodash.uniqueId = uniqueId;
    lodash.upperCase = upperCase;
    lodash.upperFirst = upperFirst;

    // Add aliases.
    lodash.each = forEach;
    lodash.eachRight = forEachRight;
    lodash.first = head;

    mixin(lodash, (function() {
      var source = {};
      baseForOwn(lodash, function(func, methodName) {
        if (!hasOwnProperty.call(lodash.prototype, methodName)) {
          source[methodName] = func;
        }
      });
      return source;
    }()), { 'chain': false });

    /*------------------------------------------------------------------------*/

    /**
     * The semantic version number.
     *
     * @static
     * @memberOf _
     * @type {string}
     */
    lodash.VERSION = VERSION;

    // Assign default placeholders.
    arrayEach(['bind', 'bindKey', 'curry', 'curryRight', 'partial', 'partialRight'], function(methodName) {
      lodash[methodName].placeholder = lodash;
    });

    // Add `LazyWrapper` methods for `_.drop` and `_.take` variants.
    arrayEach(['drop', 'take'], function(methodName, index) {
      LazyWrapper.prototype[methodName] = function(n) {
        n = n === undefined ? 1 : nativeMax(toInteger(n), 0);

        var result = (this.__filtered__ && !index)
          ? new LazyWrapper(this)
          : this.clone();

        if (result.__filtered__) {
          result.__takeCount__ = nativeMin(n, result.__takeCount__);
        } else {
          result.__views__.push({
            'size': nativeMin(n, MAX_ARRAY_LENGTH),
            'type': methodName + (result.__dir__ < 0 ? 'Right' : '')
          });
        }
        return result;
      };

      LazyWrapper.prototype[methodName + 'Right'] = function(n) {
        return this.reverse()[methodName](n).reverse();
      };
    });

    // Add `LazyWrapper` methods that accept an `iteratee` value.
    arrayEach(['filter', 'map', 'takeWhile'], function(methodName, index) {
      var type = index + 1,
          isFilter = type == LAZY_FILTER_FLAG || type == LAZY_WHILE_FLAG;

      LazyWrapper.prototype[methodName] = function(iteratee) {
        var result = this.clone();
        result.__iteratees__.push({
          'iteratee': getIteratee(iteratee, 3),
          'type': type
        });
        result.__filtered__ = result.__filtered__ || isFilter;
        return result;
      };
    });

    // Add `LazyWrapper` methods for `_.head` and `_.last`.
    arrayEach(['head', 'last'], function(methodName, index) {
      var takeName = 'take' + (index ? 'Right' : '');

      LazyWrapper.prototype[methodName] = function() {
        return this[takeName](1).value()[0];
      };
    });

    // Add `LazyWrapper` methods for `_.initial` and `_.tail`.
    arrayEach(['initial', 'tail'], function(methodName, index) {
      var dropName = 'drop' + (index ? '' : 'Right');

      LazyWrapper.prototype[methodName] = function() {
        return this.__filtered__ ? new LazyWrapper(this) : this[dropName](1);
      };
    });

    LazyWrapper.prototype.compact = function() {
      return this.filter(identity);
    };

    LazyWrapper.prototype.find = function(predicate) {
      return this.filter(predicate).head();
    };

    LazyWrapper.prototype.findLast = function(predicate) {
      return this.reverse().find(predicate);
    };

    LazyWrapper.prototype.invokeMap = baseRest(function(path, args) {
      if (typeof path == 'function') {
        return new LazyWrapper(this);
      }
      return this.map(function(value) {
        return baseInvoke(value, path, args);
      });
    });

    LazyWrapper.prototype.reject = function(predicate) {
      return this.filter(negate(getIteratee(predicate)));
    };

    LazyWrapper.prototype.slice = function(start, end) {
      start = toInteger(start);

      var result = this;
      if (result.__filtered__ && (start > 0 || end < 0)) {
        return new LazyWrapper(result);
      }
      if (start < 0) {
        result = result.takeRight(-start);
      } else if (start) {
        result = result.drop(start);
      }
      if (end !== undefined) {
        end = toInteger(end);
        result = end < 0 ? result.dropRight(-end) : result.take(end - start);
      }
      return result;
    };

    LazyWrapper.prototype.takeRightWhile = function(predicate) {
      return this.reverse().takeWhile(predicate).reverse();
    };

    LazyWrapper.prototype.toArray = function() {
      return this.take(MAX_ARRAY_LENGTH);
    };

    // Add `LazyWrapper` methods to `lodash.prototype`.
    baseForOwn(LazyWrapper.prototype, function(func, methodName) {
      var checkIteratee = /^(?:filter|find|map|reject)|While$/.test(methodName),
          isTaker = /^(?:head|last)$/.test(methodName),
          lodashFunc = lodash[isTaker ? ('take' + (methodName == 'last' ? 'Right' : '')) : methodName],
          retUnwrapped = isTaker || /^find/.test(methodName);

      if (!lodashFunc) {
        return;
      }
      lodash.prototype[methodName] = function() {
        var value = this.__wrapped__,
            args = isTaker ? [1] : arguments,
            isLazy = value instanceof LazyWrapper,
            iteratee = args[0],
            useLazy = isLazy || isArray(value);

        var interceptor = function(value) {
          var result = lodashFunc.apply(lodash, arrayPush([value], args));
          return (isTaker && chainAll) ? result[0] : result;
        };

        if (useLazy && checkIteratee && typeof iteratee == 'function' && iteratee.length != 1) {
          // Avoid lazy use if the iteratee has a "length" value other than `1`.
          isLazy = useLazy = false;
        }
        var chainAll = this.__chain__,
            isHybrid = !!this.__actions__.length,
            isUnwrapped = retUnwrapped && !chainAll,
            onlyLazy = isLazy && !isHybrid;

        if (!retUnwrapped && useLazy) {
          value = onlyLazy ? value : new LazyWrapper(this);
          var result = func.apply(value, args);
          result.__actions__.push({ 'func': thru, 'args': [interceptor], 'thisArg': undefined });
          return new LodashWrapper(result, chainAll);
        }
        if (isUnwrapped && onlyLazy) {
          return func.apply(this, args);
        }
        result = this.thru(interceptor);
        return isUnwrapped ? (isTaker ? result.value()[0] : result.value()) : result;
      };
    });

    // Add `Array` methods to `lodash.prototype`.
    arrayEach(['pop', 'push', 'shift', 'sort', 'splice', 'unshift'], function(methodName) {
      var func = arrayProto[methodName],
          chainName = /^(?:push|sort|unshift)$/.test(methodName) ? 'tap' : 'thru',
          retUnwrapped = /^(?:pop|shift)$/.test(methodName);

      lodash.prototype[methodName] = function() {
        var args = arguments;
        if (retUnwrapped && !this.__chain__) {
          var value = this.value();
          return func.apply(isArray(value) ? value : [], args);
        }
        return this[chainName](function(value) {
          return func.apply(isArray(value) ? value : [], args);
        });
      };
    });

    // Map minified method names to their real names.
    baseForOwn(LazyWrapper.prototype, function(func, methodName) {
      var lodashFunc = lodash[methodName];
      if (lodashFunc) {
        var key = (lodashFunc.name + ''),
            names = realNames[key] || (realNames[key] = []);

        names.push({ 'name': methodName, 'func': lodashFunc });
      }
    });

    realNames[createHybrid(undefined, WRAP_BIND_KEY_FLAG).name] = [{
      'name': 'wrapper',
      'func': undefined
    }];

    // Add methods to `LazyWrapper`.
    LazyWrapper.prototype.clone = lazyClone;
    LazyWrapper.prototype.reverse = lazyReverse;
    LazyWrapper.prototype.value = lazyValue;

    // Add chain sequence methods to the `lodash` wrapper.
    lodash.prototype.at = wrapperAt;
    lodash.prototype.chain = wrapperChain;
    lodash.prototype.commit = wrapperCommit;
    lodash.prototype.next = wrapperNext;
    lodash.prototype.plant = wrapperPlant;
    lodash.prototype.reverse = wrapperReverse;
    lodash.prototype.toJSON = lodash.prototype.valueOf = lodash.prototype.value = wrapperValue;

    // Add lazy aliases.
    lodash.prototype.first = lodash.prototype.head;

    if (symIterator) {
      lodash.prototype[symIterator] = wrapperToIterator;
    }
    return lodash;
  });

  /*--------------------------------------------------------------------------*/

  // Export lodash.
  var _ = runInContext();

  // Some AMD build optimizers, like r.js, check for condition patterns like:
  if (typeof define == 'function' && typeof define.amd == 'object' && define.amd) {
    // Expose Lodash on the global object to prevent errors when Lodash is
    // loaded by a script tag in the presence of an AMD loader.
    // See http://requirejs.org/docs/errors.html#mismatch for more details.
    // Use `_.noConflict` to remove Lodash from the global object.
    root._ = _;

    // Define as an anonymous module so, through path mapping, it can be
    // referenced as the "underscore" module.
    define('lodash',[],function() {
      return _;
    });
  }
  // Check for `exports` after `define` in case a build optimizer adds it.
  else if (freeModule) {
    // Export for Node.js.
    (freeModule.exports = _)._ = _;
    // Export for CommonJS support.
    freeExports._ = _;
  }
  else {
    // Export to the global object.
    root._ = _;
  }
}.call(this));

/*global define */
define('lodash.noconflict',['lodash'], function (_) {
    return _.noConflict();
});

if (!String.prototype.endsWith) {
  String.prototype.endsWith = function (searchString, position) {
      var subjectString = this.toString();
      if (position === undefined || position > subjectString.length) {
          position = subjectString.length;
      }
      position -= searchString.length;
      var lastIndex = subjectString.indexOf(searchString, position);
      return lastIndex !== -1 && lastIndex === position;
  };
}

if (!String.prototype.startsWith) {
    String.prototype.startsWith = function (searchString, position) {
        position = position || 0;
        return this.substr(position, searchString.length) === searchString;
    };
}

if (!String.prototype.splitOnce) {
    String.prototype.splitOnce = function (delimiter) {
        var components = this.split(delimiter);
        return [components.shift(), components.join(delimiter)];
    };
}

if (!String.prototype.trim) {
    String.prototype.trim = function () {
        return this.replace(/^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g, '');
    };
}
;
define("polyfill", function(){});

/*!
 * jQuery Browser Plugin 0.1.0
 * https://github.com/gabceb/jquery-browser-plugin
 *
 * Original jquery-browser code Copyright 2005, 2015 jQuery Foundation, Inc. and other contributors
 * http://jquery.org/license
 *
 * Modifications Copyright 2015 Gabriel Cebrian
 * https://github.com/gabceb
 *
 * Released under the MIT license
 *
 * Date: 05-07-2015
 */
/*global window: false */

(function (factory) {
  if (typeof define === 'function' && define.amd) {
    // AMD. Register as an anonymous module.
    define('jquery.browser',['jquery'], function ($) {
      return factory($);
    });
  } else if (typeof module === 'object' && typeof module.exports === 'object') {
    // Node-like environment
    module.exports = factory(require('jquery'));
  } else {
    // Browser globals
    factory(window.jQuery);
  }
}(function(jQuery) {
  "use strict";

  function uaMatch( ua ) {
    // If an UA is not provided, default to the current browser UA.
    if ( ua === undefined ) {
      ua = window.navigator.userAgent;
    }
    ua = ua.toLowerCase();

    var match = /(edge)\/([\w.]+)/.exec( ua ) ||
        /(opr)[\/]([\w.]+)/.exec( ua ) ||
        /(chrome)[ \/]([\w.]+)/.exec( ua ) ||
        /(iemobile)[\/]([\w.]+)/.exec( ua ) ||
        /(version)(applewebkit)[ \/]([\w.]+).*(safari)[ \/]([\w.]+)/.exec( ua ) ||
        /(webkit)[ \/]([\w.]+).*(version)[ \/]([\w.]+).*(safari)[ \/]([\w.]+)/.exec( ua ) ||
        /(webkit)[ \/]([\w.]+)/.exec( ua ) ||
        /(opera)(?:.*version|)[ \/]([\w.]+)/.exec( ua ) ||
        /(msie) ([\w.]+)/.exec( ua ) ||
        ua.indexOf("trident") >= 0 && /(rv)(?::| )([\w.]+)/.exec( ua ) ||
        ua.indexOf("compatible") < 0 && /(mozilla)(?:.*? rv:([\w.]+)|)/.exec( ua ) ||
        [];

    var platform_match = /(ipad)/.exec( ua ) ||
        /(ipod)/.exec( ua ) ||
        /(windows phone)/.exec( ua ) ||
        /(iphone)/.exec( ua ) ||
        /(kindle)/.exec( ua ) ||
        /(silk)/.exec( ua ) ||
        /(android)/.exec( ua ) ||
        /(win)/.exec( ua ) ||
        /(mac)/.exec( ua ) ||
        /(linux)/.exec( ua ) ||
        /(cros)/.exec( ua ) ||
        /(playbook)/.exec( ua ) ||
        /(bb)/.exec( ua ) ||
        /(blackberry)/.exec( ua ) ||
        [];

    var browser = {},
        matched = {
          browser: match[ 5 ] || match[ 3 ] || match[ 1 ] || "",
          version: match[ 2 ] || match[ 4 ] || "0",
          versionNumber: match[ 4 ] || match[ 2 ] || "0",
          platform: platform_match[ 0 ] || ""
        };

    if ( matched.browser ) {
      browser[ matched.browser ] = true;
      browser.version = matched.version;
      browser.versionNumber = parseInt(matched.versionNumber, 10);
    }

    if ( matched.platform ) {
      browser[ matched.platform ] = true;
    }

    // These are all considered mobile platforms, meaning they run a mobile browser
    if ( browser.android || browser.bb || browser.blackberry || browser.ipad || browser.iphone ||
      browser.ipod || browser.kindle || browser.playbook || browser.silk || browser[ "windows phone" ]) {
      browser.mobile = true;
    }

    // These are all considered desktop platforms, meaning they run a desktop browser
    if ( browser.cros || browser.mac || browser.linux || browser.win ) {
      browser.desktop = true;
    }

    // Chrome, Opera 15+ and Safari are webkit based browsers
    if ( browser.chrome || browser.opr || browser.safari ) {
      browser.webkit = true;
    }

    // IE11 has a new token so we will assign it msie to avoid breaking changes
    if ( browser.rv || browser.iemobile) {
      var ie = "msie";

      matched.browser = ie;
      browser[ie] = true;
    }

    // Edge is officially known as Microsoft Edge, so rewrite the key to match
    if ( browser.edge ) {
      delete browser.edge;
      var msedge = "msedge";

      matched.browser = msedge;
      browser[msedge] = true;
    }

    // Blackberry browsers are marked as Safari on BlackBerry
    if ( browser.safari && browser.blackberry ) {
      var blackberry = "blackberry";

      matched.browser = blackberry;
      browser[blackberry] = true;
    }

    // Playbook browsers are marked as Safari on Playbook
    if ( browser.safari && browser.playbook ) {
      var playbook = "playbook";

      matched.browser = playbook;
      browser[playbook] = true;
    }

    // BB10 is a newer OS version of BlackBerry
    if ( browser.bb ) {
      var bb = "blackberry";

      matched.browser = bb;
      browser[bb] = true;
    }

    // Opera 15+ are identified as opr
    if ( browser.opr ) {
      var opera = "opera";

      matched.browser = opera;
      browser[opera] = true;
    }

    // Stock Android browsers are marked as Safari on Android.
    if ( browser.safari && browser.android ) {
      var android = "android";

      matched.browser = android;
      browser[android] = true;
    }

    // Kindle browsers are marked as Safari on Kindle
    if ( browser.safari && browser.kindle ) {
      var kindle = "kindle";

      matched.browser = kindle;
      browser[kindle] = true;
    }

     // Kindle Silk browsers are marked as Safari on Kindle
    if ( browser.safari && browser.silk ) {
      var silk = "silk";

      matched.browser = silk;
      browser[silk] = true;
    }

    // Assign the name and platform variable
    browser.name = matched.browser;
    browser.platform = matched.platform;
    return browser;
  }

  // Run the matching process, also assign the function to the returned object
  // for manual, jQuery-free use if desired
  window.jQBrowser = uaMatch( window.navigator.userAgent );
  window.jQBrowser.uaMatch = uaMatch;

  // Only assign to jQuery.browser if jQuery is loaded
  if ( jQuery ) {
    jQuery.browser = window.jQBrowser;
  }

  return window.jQBrowser;
}));

/*
jed.js
v0.5.0beta

https://github.com/SlexAxton/Jed
-----------
A gettext compatible i18n library for modern JavaScript Applications

by Alex Sexton - AlexSexton [at] gmail - @SlexAxton
WTFPL license for use
Dojo CLA for contributions

Jed offers the entire applicable GNU gettext spec'd set of
functions, but also offers some nicer wrappers around them.
The api for gettext was written for a language with no function
overloading, so Jed allows a little more of that.

Many thanks to Joshua I. Miller - unrtst@cpan.org - who wrote
gettext.js back in 2008. I was able to vet a lot of my ideas
against his. I also made sure Jed passed against his tests
in order to offer easy upgrades -- jsgettext.berlios.de
*/
(function (root, undef) {

  // Set up some underscore-style functions, if you already have
  // underscore, feel free to delete this section, and use it
  // directly, however, the amount of functions used doesn't
  // warrant having underscore as a full dependency.
  // Underscore 1.3.0 was used to port and is licensed
  // under the MIT License by Jeremy Ashkenas.
  var ArrayProto    = Array.prototype,
      ObjProto      = Object.prototype,
      slice         = ArrayProto.slice,
      hasOwnProp    = ObjProto.hasOwnProperty,
      nativeForEach = ArrayProto.forEach,
      breaker       = {};

  // We're not using the OOP style _ so we don't need the
  // extra level of indirection. This still means that you
  // sub out for real `_` though.
  var _ = {
    forEach : function( obj, iterator, context ) {
      var i, l, key;
      if ( obj === null ) {
        return;
      }

      if ( nativeForEach && obj.forEach === nativeForEach ) {
        obj.forEach( iterator, context );
      }
      else if ( obj.length === +obj.length ) {
        for ( i = 0, l = obj.length; i < l; i++ ) {
          if ( i in obj && iterator.call( context, obj[i], i, obj ) === breaker ) {
            return;
          }
        }
      }
      else {
        for ( key in obj) {
          if ( hasOwnProp.call( obj, key ) ) {
            if ( iterator.call (context, obj[key], key, obj ) === breaker ) {
              return;
            }
          }
        }
      }
    },
    extend : function( obj ) {
      this.forEach( slice.call( arguments, 1 ), function ( source ) {
        for ( var prop in source ) {
          obj[prop] = source[prop];
        }
      });
      return obj;
    }
  };
  // END Miniature underscore impl

  // Jed is a constructor function
  var Jed = function ( options ) {
    // Some minimal defaults
    this.defaults = {
      "locale_data" : {
        "messages" : {
          "" : {
            "domain"       : "messages",
            "lang"         : "en",
            "plural_forms" : "nplurals=2; plural=(n != 1);"
          }
          // There are no default keys, though
        }
      },
      // The default domain if one is missing
      "domain" : "messages"
    };

    // Mix in the sent options with the default options
    this.options = _.extend( {}, this.defaults, options );
    this.textdomain( this.options.domain );

    if ( options.domain && ! this.options.locale_data[ this.options.domain ] ) {
      throw new Error('Text domain set to non-existent domain: `' + options.domain + '`');
    }
  };

  // The gettext spec sets this character as the default
  // delimiter for context lookups.
  // e.g.: context\u0004key
  // If your translation company uses something different,
  // just change this at any time and it will use that instead.
  Jed.context_delimiter = String.fromCharCode( 4 );

  function getPluralFormFunc ( plural_form_string ) {
    return Jed.PF.compile( plural_form_string || "nplurals=2; plural=(n != 1);");
  }

  function Chain( key, i18n ){
    this._key = key;
    this._i18n = i18n;
  }

  // Create a chainable api for adding args prettily
  _.extend( Chain.prototype, {
    onDomain : function ( domain ) {
      this._domain = domain;
      return this;
    },
    withContext : function ( context ) {
      this._context = context;
      return this;
    },
    ifPlural : function ( num, pkey ) {
      this._val = num;
      this._pkey = pkey;
      return this;
    },
    fetch : function ( sArr ) {
      if ( {}.toString.call( sArr ) != '[object Array]' ) {
        sArr = [].slice.call(arguments);
      }
      return ( sArr && sArr.length ? Jed.sprintf : function(x){ return x; } )(
        this._i18n.dcnpgettext(this._domain, this._context, this._key, this._pkey, this._val),
        sArr
      );
    }
  });

  // Add functions to the Jed prototype.
  // These will be the functions on the object that's returned
  // from creating a `new Jed()`
  // These seem redundant, but they gzip pretty well.
  _.extend( Jed.prototype, {
    // The sexier api start point
    translate : function ( key ) {
      return new Chain( key, this );
    },

    textdomain : function ( domain ) {
      if ( ! domain ) {
        return this._textdomain;
      }
      this._textdomain = domain;
    },

    gettext : function ( key ) {
      return this.dcnpgettext.call( this, undef, undef, key );
    },

    dgettext : function ( domain, key ) {
     return this.dcnpgettext.call( this, domain, undef, key );
    },

    dcgettext : function ( domain , key /*, category */ ) {
      // Ignores the category anyways
      return this.dcnpgettext.call( this, domain, undef, key );
    },

    ngettext : function ( skey, pkey, val ) {
      return this.dcnpgettext.call( this, undef, undef, skey, pkey, val );
    },

    dngettext : function ( domain, skey, pkey, val ) {
      return this.dcnpgettext.call( this, domain, undef, skey, pkey, val );
    },

    dcngettext : function ( domain, skey, pkey, val/*, category */) {
      return this.dcnpgettext.call( this, domain, undef, skey, pkey, val );
    },

    pgettext : function ( context, key ) {
      return this.dcnpgettext.call( this, undef, context, key );
    },

    dpgettext : function ( domain, context, key ) {
      return this.dcnpgettext.call( this, domain, context, key );
    },

    dcpgettext : function ( domain, context, key/*, category */) {
      return this.dcnpgettext.call( this, domain, context, key );
    },

    npgettext : function ( context, skey, pkey, val ) {
      return this.dcnpgettext.call( this, undef, context, skey, pkey, val );
    },

    dnpgettext : function ( domain, context, skey, pkey, val ) {
      return this.dcnpgettext.call( this, domain, context, skey, pkey, val );
    },

    // The most fully qualified gettext function. It has every option.
    // Since it has every option, we can use it from every other method.
    // This is the bread and butter.
    // Technically there should be one more argument in this function for 'Category',
    // but since we never use it, we might as well not waste the bytes to define it.
    dcnpgettext : function ( domain, context, singular_key, plural_key, val ) {
      // Set some defaults

      plural_key = plural_key || singular_key;

      // Use the global domain default if one
      // isn't explicitly passed in
      domain = domain || this._textdomain;

      // Default the value to the singular case
      val = typeof val == 'undefined' ? 1 : val;

      var fallback;

      // Handle special cases

      // No options found
      if ( ! this.options ) {
        // There's likely something wrong, but we'll return the correct key for english
        // We do this by instantiating a brand new Jed instance with the default set
        // for everything that could be broken.
        fallback = new Jed();
        return fallback.dcnpgettext.call( fallback, undefined, undefined, singular_key, plural_key, val );
      }

      // No translation data provided
      if ( ! this.options.locale_data ) {
        throw new Error('No locale data provided.');
      }

      if ( ! this.options.locale_data[ domain ] ) {
        throw new Error('Domain `' + domain + '` was not found.');
      }

      if ( ! this.options.locale_data[ domain ][ "" ] ) {
        throw new Error('No locale meta information provided.');
      }

      // Make sure we have a truthy key. Otherwise we might start looking
      // into the empty string key, which is the options for the locale
      // data.
      if ( ! singular_key ) {
        throw new Error('No translation key found.');
      }

      // Handle invalid numbers, but try casting strings for good measure
      if ( typeof val != 'number' ) {
        val = parseInt( val, 10 );

        if ( isNaN( val ) ) {
          throw new Error('The number that was passed in is not a number.');
        }
      }

      var key  = context ? context + Jed.context_delimiter + singular_key : singular_key,
          locale_data = this.options.locale_data,
          dict = locale_data[ domain ],
          pluralForms = dict[""].plural_forms || (locale_data.messages || this.defaults.locale_data.messages)[""].plural_forms,
          val_idx = getPluralFormFunc(pluralForms)(val) + 1,
          val_list,
          res;

      // Throw an error if a domain isn't found
      if ( ! dict ) {
        throw new Error('No domain named `' + domain + '` could be found.');
      }

      val_list = dict[ key ];

      // If there is no match, then revert back to
      // english style singular/plural with the keys passed in.
      if ( ! val_list || val_idx >= val_list.length ) {
        if (this.options.missing_key_callback) {
          this.options.missing_key_callback(key);
        }
        res = [ null, singular_key, plural_key ];
        return res[ getPluralFormFunc(pluralForms)( val ) + 1 ];
      }

      res = val_list[ val_idx ];

      // This includes empty strings on purpose
      if ( ! res  ) {
        res = [ null, singular_key, plural_key ];
        return res[ getPluralFormFunc(pluralForms)( val ) + 1 ];
      }
      return res;
    }
  });


  // We add in sprintf capabilities for post translation value interolation
  // This is not internally used, so you can remove it if you have this
  // available somewhere else, or want to use a different system.

  // We _slightly_ modify the normal sprintf behavior to more gracefully handle
  // undefined values.

  /**
   sprintf() for JavaScript 0.7-beta1
   http://www.diveintojavascript.com/projects/javascript-sprintf

   Copyright (c) Alexandru Marasteanu <alexaholic [at) gmail (dot] com>
   All rights reserved.

   Redistribution and use in source and binary forms, with or without
   modification, are permitted provided that the following conditions are met:
       * Redistributions of source code must retain the above copyright
         notice, this list of conditions and the following disclaimer.
       * Redistributions in binary form must reproduce the above copyright
         notice, this list of conditions and the following disclaimer in the
         documentation and/or other materials provided with the distribution.
       * Neither the name of sprintf() for JavaScript nor the
         names of its contributors may be used to endorse or promote products
         derived from this software without specific prior written permission.

   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
   ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
   WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   DISCLAIMED. IN NO EVENT SHALL Alexandru Marasteanu BE LIABLE FOR ANY
   DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
   (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
   LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
   ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
   SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
  var sprintf = (function() {
    function get_type(variable) {
      return Object.prototype.toString.call(variable).slice(8, -1).toLowerCase();
    }
    function str_repeat(input, multiplier) {
      for (var output = []; multiplier > 0; output[--multiplier] = input) {/* do nothing */}
      return output.join('');
    }

    var str_format = function() {
      if (!str_format.cache.hasOwnProperty(arguments[0])) {
        str_format.cache[arguments[0]] = str_format.parse(arguments[0]);
      }
      return str_format.format.call(null, str_format.cache[arguments[0]], arguments);
    };

    str_format.format = function(parse_tree, argv) {
      var cursor = 1, tree_length = parse_tree.length, node_type = '', arg, output = [], i, k, match, pad, pad_character, pad_length;
      for (i = 0; i < tree_length; i++) {
        node_type = get_type(parse_tree[i]);
        if (node_type === 'string') {
          output.push(parse_tree[i]);
        }
        else if (node_type === 'array') {
          match = parse_tree[i]; // convenience purposes only
          if (match[2]) { // keyword argument
            arg = argv[cursor];
            for (k = 0; k < match[2].length; k++) {
              if (!arg.hasOwnProperty(match[2][k])) {
                throw(sprintf('[sprintf] property "%s" does not exist', match[2][k]));
              }
              arg = arg[match[2][k]];
            }
          }
          else if (match[1]) { // positional argument (explicit)
            arg = argv[match[1]];
          }
          else { // positional argument (implicit)
            arg = argv[cursor++];
          }

          if (/[^s]/.test(match[8]) && (get_type(arg) != 'number')) {
            throw(sprintf('[sprintf] expecting number but found %s', get_type(arg)));
          }

          // Jed EDIT
          if ( typeof arg == 'undefined' || arg === null ) {
            arg = '';
          }
          // Jed EDIT

          switch (match[8]) {
            case 'b': arg = arg.toString(2); break;
            case 'c': arg = String.fromCharCode(arg); break;
            case 'd': arg = parseInt(arg, 10); break;
            case 'e': arg = match[7] ? arg.toExponential(match[7]) : arg.toExponential(); break;
            case 'f': arg = match[7] ? parseFloat(arg).toFixed(match[7]) : parseFloat(arg); break;
            case 'o': arg = arg.toString(8); break;
            case 's': arg = ((arg = String(arg)) && match[7] ? arg.substring(0, match[7]) : arg); break;
            case 'u': arg = Math.abs(arg); break;
            case 'x': arg = arg.toString(16); break;
            case 'X': arg = arg.toString(16).toUpperCase(); break;
          }
          arg = (/[def]/.test(match[8]) && match[3] && arg >= 0 ? '+'+ arg : arg);
          pad_character = match[4] ? match[4] == '0' ? '0' : match[4].charAt(1) : ' ';
          pad_length = match[6] - String(arg).length;
          pad = match[6] ? str_repeat(pad_character, pad_length) : '';
          output.push(match[5] ? arg + pad : pad + arg);
        }
      }
      return output.join('');
    };

    str_format.cache = {};

    str_format.parse = function(fmt) {
      var _fmt = fmt, match = [], parse_tree = [], arg_names = 0;
      while (_fmt) {
        if ((match = /^[^\x25]+/.exec(_fmt)) !== null) {
          parse_tree.push(match[0]);
        }
        else if ((match = /^\x25{2}/.exec(_fmt)) !== null) {
          parse_tree.push('%');
        }
        else if ((match = /^\x25(?:([1-9]\d*)\$|\(([^\)]+)\))?(\+)?(0|'[^$])?(-)?(\d+)?(?:\.(\d+))?([b-fosuxX])/.exec(_fmt)) !== null) {
          if (match[2]) {
            arg_names |= 1;
            var field_list = [], replacement_field = match[2], field_match = [];
            if ((field_match = /^([a-z_][a-z_\d]*)/i.exec(replacement_field)) !== null) {
              field_list.push(field_match[1]);
              while ((replacement_field = replacement_field.substring(field_match[0].length)) !== '') {
                if ((field_match = /^\.([a-z_][a-z_\d]*)/i.exec(replacement_field)) !== null) {
                  field_list.push(field_match[1]);
                }
                else if ((field_match = /^\[(\d+)\]/.exec(replacement_field)) !== null) {
                  field_list.push(field_match[1]);
                }
                else {
                  throw('[sprintf] huh?');
                }
              }
            }
            else {
              throw('[sprintf] huh?');
            }
            match[2] = field_list;
          }
          else {
            arg_names |= 2;
          }
          if (arg_names === 3) {
            throw('[sprintf] mixing positional and named placeholders is not (yet) supported');
          }
          parse_tree.push(match);
        }
        else {
          throw('[sprintf] huh?');
        }
        _fmt = _fmt.substring(match[0].length);
      }
      return parse_tree;
    };

    return str_format;
  })();

  var vsprintf = function(fmt, argv) {
    argv.unshift(fmt);
    return sprintf.apply(null, argv);
  };

  Jed.parse_plural = function ( plural_forms, n ) {
    plural_forms = plural_forms.replace(/n/g, n);
    return Jed.parse_expression(plural_forms);
  };

  Jed.sprintf = function ( fmt, args ) {
    if ( {}.toString.call( args ) == '[object Array]' ) {
      return vsprintf( fmt, [].slice.call(args) );
    }
    return sprintf.apply(this, [].slice.call(arguments) );
  };

  Jed.prototype.sprintf = function () {
    return Jed.sprintf.apply(this, arguments);
  };
  // END sprintf Implementation

  // Start the Plural forms section
  // This is a full plural form expression parser. It is used to avoid
  // running 'eval' or 'new Function' directly against the plural
  // forms.
  //
  // This can be important if you get translations done through a 3rd
  // party vendor. I encourage you to use this instead, however, I
  // also will provide a 'precompiler' that you can use at build time
  // to output valid/safe function representations of the plural form
  // expressions. This means you can build this code out for the most
  // part.
  Jed.PF = {};

  Jed.PF.parse = function ( p ) {
    var plural_str = Jed.PF.extractPluralExpr( p );
    return Jed.PF.parser.parse.call(Jed.PF.parser, plural_str);
  };

  Jed.PF.compile = function ( p ) {
    // Handle trues and falses as 0 and 1
    function imply( val ) {
      return (val === true ? 1 : val ? val : 0);
    }

    var ast = Jed.PF.parse( p );
    return function ( n ) {
      return imply( Jed.PF.interpreter( ast )( n ) );
    };
  };

  Jed.PF.interpreter = function ( ast ) {
    return function ( n ) {
      var res;
      switch ( ast.type ) {
        case 'GROUP':
          return Jed.PF.interpreter( ast.expr )( n );
        case 'TERNARY':
          if ( Jed.PF.interpreter( ast.expr )( n ) ) {
            return Jed.PF.interpreter( ast.truthy )( n );
          }
          return Jed.PF.interpreter( ast.falsey )( n );
        case 'OR':
          return Jed.PF.interpreter( ast.left )( n ) || Jed.PF.interpreter( ast.right )( n );
        case 'AND':
          return Jed.PF.interpreter( ast.left )( n ) && Jed.PF.interpreter( ast.right )( n );
        case 'LT':
          return Jed.PF.interpreter( ast.left )( n ) < Jed.PF.interpreter( ast.right )( n );
        case 'GT':
          return Jed.PF.interpreter( ast.left )( n ) > Jed.PF.interpreter( ast.right )( n );
        case 'LTE':
          return Jed.PF.interpreter( ast.left )( n ) <= Jed.PF.interpreter( ast.right )( n );
        case 'GTE':
          return Jed.PF.interpreter( ast.left )( n ) >= Jed.PF.interpreter( ast.right )( n );
        case 'EQ':
          return Jed.PF.interpreter( ast.left )( n ) == Jed.PF.interpreter( ast.right )( n );
        case 'NEQ':
          return Jed.PF.interpreter( ast.left )( n ) != Jed.PF.interpreter( ast.right )( n );
        case 'MOD':
          return Jed.PF.interpreter( ast.left )( n ) % Jed.PF.interpreter( ast.right )( n );
        case 'VAR':
          return n;
        case 'NUM':
          return ast.val;
        default:
          throw new Error("Invalid Token found.");
      }
    };
  };

  Jed.PF.extractPluralExpr = function ( p ) {
    // trim first
    p = p.replace(/^\s\s*/, '').replace(/\s\s*$/, '');

    if (! /;\s*$/.test(p)) {
      p = p.concat(';');
    }

    var nplurals_re = /nplurals\=(\d+);/,
        plural_re = /plural\=(.*);/,
        nplurals_matches = p.match( nplurals_re ),
        res = {},
        plural_matches;

    // Find the nplurals number
    if ( nplurals_matches.length > 1 ) {
      res.nplurals = nplurals_matches[1];
    }
    else {
      throw new Error('nplurals not found in plural_forms string: ' + p );
    }

    // remove that data to get to the formula
    p = p.replace( nplurals_re, "" );
    plural_matches = p.match( plural_re );

    if (!( plural_matches && plural_matches.length > 1 ) ) {
      throw new Error('`plural` expression not found: ' + p);
    }
    return plural_matches[ 1 ];
  };

  /* Jison generated parser */
  Jed.PF.parser = (function(){

var parser = {trace: function trace() { },
yy: {},
symbols_: {"error":2,"expressions":3,"e":4,"EOF":5,"?":6,":":7,"||":8,"&&":9,"<":10,"<=":11,">":12,">=":13,"!=":14,"==":15,"%":16,"(":17,")":18,"n":19,"NUMBER":20,"$accept":0,"$end":1},
terminals_: {2:"error",5:"EOF",6:"?",7:":",8:"||",9:"&&",10:"<",11:"<=",12:">",13:">=",14:"!=",15:"==",16:"%",17:"(",18:")",19:"n",20:"NUMBER"},
productions_: [0,[3,2],[4,5],[4,3],[4,3],[4,3],[4,3],[4,3],[4,3],[4,3],[4,3],[4,3],[4,3],[4,1],[4,1]],
performAction: function anonymous(yytext,yyleng,yylineno,yy,yystate,$$,_$) {

var $0 = $$.length - 1;
switch (yystate) {
case 1: return { type : 'GROUP', expr: $$[$0-1] }; 
break;
case 2:this.$ = { type: 'TERNARY', expr: $$[$0-4], truthy : $$[$0-2], falsey: $$[$0] }; 
break;
case 3:this.$ = { type: "OR", left: $$[$0-2], right: $$[$0] };
break;
case 4:this.$ = { type: "AND", left: $$[$0-2], right: $$[$0] };
break;
case 5:this.$ = { type: 'LT', left: $$[$0-2], right: $$[$0] }; 
break;
case 6:this.$ = { type: 'LTE', left: $$[$0-2], right: $$[$0] };
break;
case 7:this.$ = { type: 'GT', left: $$[$0-2], right: $$[$0] };
break;
case 8:this.$ = { type: 'GTE', left: $$[$0-2], right: $$[$0] };
break;
case 9:this.$ = { type: 'NEQ', left: $$[$0-2], right: $$[$0] };
break;
case 10:this.$ = { type: 'EQ', left: $$[$0-2], right: $$[$0] };
break;
case 11:this.$ = { type: 'MOD', left: $$[$0-2], right: $$[$0] };
break;
case 12:this.$ = { type: 'GROUP', expr: $$[$0-1] }; 
break;
case 13:this.$ = { type: 'VAR' }; 
break;
case 14:this.$ = { type: 'NUM', val: Number(yytext) }; 
break;
}
},
table: [{3:1,4:2,17:[1,3],19:[1,4],20:[1,5]},{1:[3]},{5:[1,6],6:[1,7],8:[1,8],9:[1,9],10:[1,10],11:[1,11],12:[1,12],13:[1,13],14:[1,14],15:[1,15],16:[1,16]},{4:17,17:[1,3],19:[1,4],20:[1,5]},{5:[2,13],6:[2,13],7:[2,13],8:[2,13],9:[2,13],10:[2,13],11:[2,13],12:[2,13],13:[2,13],14:[2,13],15:[2,13],16:[2,13],18:[2,13]},{5:[2,14],6:[2,14],7:[2,14],8:[2,14],9:[2,14],10:[2,14],11:[2,14],12:[2,14],13:[2,14],14:[2,14],15:[2,14],16:[2,14],18:[2,14]},{1:[2,1]},{4:18,17:[1,3],19:[1,4],20:[1,5]},{4:19,17:[1,3],19:[1,4],20:[1,5]},{4:20,17:[1,3],19:[1,4],20:[1,5]},{4:21,17:[1,3],19:[1,4],20:[1,5]},{4:22,17:[1,3],19:[1,4],20:[1,5]},{4:23,17:[1,3],19:[1,4],20:[1,5]},{4:24,17:[1,3],19:[1,4],20:[1,5]},{4:25,17:[1,3],19:[1,4],20:[1,5]},{4:26,17:[1,3],19:[1,4],20:[1,5]},{4:27,17:[1,3],19:[1,4],20:[1,5]},{6:[1,7],8:[1,8],9:[1,9],10:[1,10],11:[1,11],12:[1,12],13:[1,13],14:[1,14],15:[1,15],16:[1,16],18:[1,28]},{6:[1,7],7:[1,29],8:[1,8],9:[1,9],10:[1,10],11:[1,11],12:[1,12],13:[1,13],14:[1,14],15:[1,15],16:[1,16]},{5:[2,3],6:[2,3],7:[2,3],8:[2,3],9:[1,9],10:[1,10],11:[1,11],12:[1,12],13:[1,13],14:[1,14],15:[1,15],16:[1,16],18:[2,3]},{5:[2,4],6:[2,4],7:[2,4],8:[2,4],9:[2,4],10:[1,10],11:[1,11],12:[1,12],13:[1,13],14:[1,14],15:[1,15],16:[1,16],18:[2,4]},{5:[2,5],6:[2,5],7:[2,5],8:[2,5],9:[2,5],10:[2,5],11:[2,5],12:[2,5],13:[2,5],14:[2,5],15:[2,5],16:[1,16],18:[2,5]},{5:[2,6],6:[2,6],7:[2,6],8:[2,6],9:[2,6],10:[2,6],11:[2,6],12:[2,6],13:[2,6],14:[2,6],15:[2,6],16:[1,16],18:[2,6]},{5:[2,7],6:[2,7],7:[2,7],8:[2,7],9:[2,7],10:[2,7],11:[2,7],12:[2,7],13:[2,7],14:[2,7],15:[2,7],16:[1,16],18:[2,7]},{5:[2,8],6:[2,8],7:[2,8],8:[2,8],9:[2,8],10:[2,8],11:[2,8],12:[2,8],13:[2,8],14:[2,8],15:[2,8],16:[1,16],18:[2,8]},{5:[2,9],6:[2,9],7:[2,9],8:[2,9],9:[2,9],10:[2,9],11:[2,9],12:[2,9],13:[2,9],14:[2,9],15:[2,9],16:[1,16],18:[2,9]},{5:[2,10],6:[2,10],7:[2,10],8:[2,10],9:[2,10],10:[2,10],11:[2,10],12:[2,10],13:[2,10],14:[2,10],15:[2,10],16:[1,16],18:[2,10]},{5:[2,11],6:[2,11],7:[2,11],8:[2,11],9:[2,11],10:[2,11],11:[2,11],12:[2,11],13:[2,11],14:[2,11],15:[2,11],16:[2,11],18:[2,11]},{5:[2,12],6:[2,12],7:[2,12],8:[2,12],9:[2,12],10:[2,12],11:[2,12],12:[2,12],13:[2,12],14:[2,12],15:[2,12],16:[2,12],18:[2,12]},{4:30,17:[1,3],19:[1,4],20:[1,5]},{5:[2,2],6:[1,7],7:[2,2],8:[1,8],9:[1,9],10:[1,10],11:[1,11],12:[1,12],13:[1,13],14:[1,14],15:[1,15],16:[1,16],18:[2,2]}],
defaultActions: {6:[2,1]},
parseError: function parseError(str, hash) {
    throw new Error(str);
},
parse: function parse(input) {
    var self = this,
        stack = [0],
        vstack = [null], // semantic value stack
        lstack = [], // location stack
        table = this.table,
        yytext = '',
        yylineno = 0,
        yyleng = 0,
        recovering = 0,
        TERROR = 2,
        EOF = 1;

    //this.reductionCount = this.shiftCount = 0;

    this.lexer.setInput(input);
    this.lexer.yy = this.yy;
    this.yy.lexer = this.lexer;
    if (typeof this.lexer.yylloc == 'undefined')
        this.lexer.yylloc = {};
    var yyloc = this.lexer.yylloc;
    lstack.push(yyloc);

    if (typeof this.yy.parseError === 'function')
        this.parseError = this.yy.parseError;

    function popStack (n) {
        stack.length = stack.length - 2*n;
        vstack.length = vstack.length - n;
        lstack.length = lstack.length - n;
    }

    function lex() {
        var token;
        token = self.lexer.lex() || 1; // $end = 1
        // if token isn't its numeric value, convert
        if (typeof token !== 'number') {
            token = self.symbols_[token] || token;
        }
        return token;
    }

    var symbol, preErrorSymbol, state, action, a, r, yyval={},p,len,newState, expected;
    while (true) {
        // retreive state number from top of stack
        state = stack[stack.length-1];

        // use default actions if available
        if (this.defaultActions[state]) {
            action = this.defaultActions[state];
        } else {
            if (symbol == null)
                symbol = lex();
            // read action for current state and first input
            action = table[state] && table[state][symbol];
        }

        // handle parse error
        _handle_error:
        if (typeof action === 'undefined' || !action.length || !action[0]) {

            if (!recovering) {
                // Report error
                expected = [];
                for (p in table[state]) if (this.terminals_[p] && p > 2) {
                    expected.push("'"+this.terminals_[p]+"'");
                }
                var errStr = '';
                if (this.lexer.showPosition) {
                    errStr = 'Parse error on line '+(yylineno+1)+":\n"+this.lexer.showPosition()+"\nExpecting "+expected.join(', ') + ", got '" + this.terminals_[symbol]+ "'";
                } else {
                    errStr = 'Parse error on line '+(yylineno+1)+": Unexpected " +
                                  (symbol == 1 /*EOF*/ ? "end of input" :
                                              ("'"+(this.terminals_[symbol] || symbol)+"'"));
                }
                this.parseError(errStr,
                    {text: this.lexer.match, token: this.terminals_[symbol] || symbol, line: this.lexer.yylineno, loc: yyloc, expected: expected});
            }

            // just recovered from another error
            if (recovering == 3) {
                if (symbol == EOF) {
                    throw new Error(errStr || 'Parsing halted.');
                }

                // discard current lookahead and grab another
                yyleng = this.lexer.yyleng;
                yytext = this.lexer.yytext;
                yylineno = this.lexer.yylineno;
                yyloc = this.lexer.yylloc;
                symbol = lex();
            }

            // try to recover from error
            while (1) {
                // check for error recovery rule in this state
                if ((TERROR.toString()) in table[state]) {
                    break;
                }
                if (state == 0) {
                    throw new Error(errStr || 'Parsing halted.');
                }
                popStack(1);
                state = stack[stack.length-1];
            }

            preErrorSymbol = symbol; // save the lookahead token
            symbol = TERROR;         // insert generic error symbol as new lookahead
            state = stack[stack.length-1];
            action = table[state] && table[state][TERROR];
            recovering = 3; // allow 3 real symbols to be shifted before reporting a new error
        }

        // this shouldn't happen, unless resolve defaults are off
        if (action[0] instanceof Array && action.length > 1) {
            throw new Error('Parse Error: multiple actions possible at state: '+state+', token: '+symbol);
        }

        switch (action[0]) {

            case 1: // shift
                //this.shiftCount++;

                stack.push(symbol);
                vstack.push(this.lexer.yytext);
                lstack.push(this.lexer.yylloc);
                stack.push(action[1]); // push state
                symbol = null;
                if (!preErrorSymbol) { // normal execution/no error
                    yyleng = this.lexer.yyleng;
                    yytext = this.lexer.yytext;
                    yylineno = this.lexer.yylineno;
                    yyloc = this.lexer.yylloc;
                    if (recovering > 0)
                        recovering--;
                } else { // error just occurred, resume old lookahead f/ before error
                    symbol = preErrorSymbol;
                    preErrorSymbol = null;
                }
                break;

            case 2: // reduce
                //this.reductionCount++;

                len = this.productions_[action[1]][1];

                // perform semantic action
                yyval.$ = vstack[vstack.length-len]; // default to $$ = $1
                // default location, uses first token for firsts, last for lasts
                yyval._$ = {
                    first_line: lstack[lstack.length-(len||1)].first_line,
                    last_line: lstack[lstack.length-1].last_line,
                    first_column: lstack[lstack.length-(len||1)].first_column,
                    last_column: lstack[lstack.length-1].last_column
                };
                r = this.performAction.call(yyval, yytext, yyleng, yylineno, this.yy, action[1], vstack, lstack);

                if (typeof r !== 'undefined') {
                    return r;
                }

                // pop off stack
                if (len) {
                    stack = stack.slice(0,-1*len*2);
                    vstack = vstack.slice(0, -1*len);
                    lstack = lstack.slice(0, -1*len);
                }

                stack.push(this.productions_[action[1]][0]);    // push nonterminal (reduce)
                vstack.push(yyval.$);
                lstack.push(yyval._$);
                // goto new state = table[STATE][NONTERMINAL]
                newState = table[stack[stack.length-2]][stack[stack.length-1]];
                stack.push(newState);
                break;

            case 3: // accept
                return true;
        }

    }

    return true;
}};/* Jison generated lexer */
var lexer = (function(){

var lexer = ({EOF:1,
parseError:function parseError(str, hash) {
        if (this.yy.parseError) {
            this.yy.parseError(str, hash);
        } else {
            throw new Error(str);
        }
    },
setInput:function (input) {
        this._input = input;
        this._more = this._less = this.done = false;
        this.yylineno = this.yyleng = 0;
        this.yytext = this.matched = this.match = '';
        this.conditionStack = ['INITIAL'];
        this.yylloc = {first_line:1,first_column:0,last_line:1,last_column:0};
        return this;
    },
input:function () {
        var ch = this._input[0];
        this.yytext+=ch;
        this.yyleng++;
        this.match+=ch;
        this.matched+=ch;
        var lines = ch.match(/\n/);
        if (lines) this.yylineno++;
        this._input = this._input.slice(1);
        return ch;
    },
unput:function (ch) {
        this._input = ch + this._input;
        return this;
    },
more:function () {
        this._more = true;
        return this;
    },
pastInput:function () {
        var past = this.matched.substr(0, this.matched.length - this.match.length);
        return (past.length > 20 ? '...':'') + past.substr(-20).replace(/\n/g, "");
    },
upcomingInput:function () {
        var next = this.match;
        if (next.length < 20) {
            next += this._input.substr(0, 20-next.length);
        }
        return (next.substr(0,20)+(next.length > 20 ? '...':'')).replace(/\n/g, "");
    },
showPosition:function () {
        var pre = this.pastInput();
        var c = new Array(pre.length + 1).join("-");
        return pre + this.upcomingInput() + "\n" + c+"^";
    },
next:function () {
        if (this.done) {
            return this.EOF;
        }
        if (!this._input) this.done = true;

        var token,
            match,
            col,
            lines;
        if (!this._more) {
            this.yytext = '';
            this.match = '';
        }
        var rules = this._currentRules();
        for (var i=0;i < rules.length; i++) {
            match = this._input.match(this.rules[rules[i]]);
            if (match) {
                lines = match[0].match(/\n.*/g);
                if (lines) this.yylineno += lines.length;
                this.yylloc = {first_line: this.yylloc.last_line,
                               last_line: this.yylineno+1,
                               first_column: this.yylloc.last_column,
                               last_column: lines ? lines[lines.length-1].length-1 : this.yylloc.last_column + match[0].length}
                this.yytext += match[0];
                this.match += match[0];
                this.matches = match;
                this.yyleng = this.yytext.length;
                this._more = false;
                this._input = this._input.slice(match[0].length);
                this.matched += match[0];
                token = this.performAction.call(this, this.yy, this, rules[i],this.conditionStack[this.conditionStack.length-1]);
                if (token) return token;
                else return;
            }
        }
        if (this._input === "") {
            return this.EOF;
        } else {
            this.parseError('Lexical error on line '+(this.yylineno+1)+'. Unrecognized text.\n'+this.showPosition(), 
                    {text: "", token: null, line: this.yylineno});
        }
    },
lex:function lex() {
        var r = this.next();
        if (typeof r !== 'undefined') {
            return r;
        } else {
            return this.lex();
        }
    },
begin:function begin(condition) {
        this.conditionStack.push(condition);
    },
popState:function popState() {
        return this.conditionStack.pop();
    },
_currentRules:function _currentRules() {
        return this.conditions[this.conditionStack[this.conditionStack.length-1]].rules;
    },
topState:function () {
        return this.conditionStack[this.conditionStack.length-2];
    },
pushState:function begin(condition) {
        this.begin(condition);
    }});
lexer.performAction = function anonymous(yy,yy_,$avoiding_name_collisions,YY_START) {

var YYSTATE=YY_START;
switch($avoiding_name_collisions) {
case 0:/* skip whitespace */
break;
case 1:return 20
break;
case 2:return 19
break;
case 3:return 8
break;
case 4:return 9
break;
case 5:return 6
break;
case 6:return 7
break;
case 7:return 11
break;
case 8:return 13
break;
case 9:return 10
break;
case 10:return 12
break;
case 11:return 14
break;
case 12:return 15
break;
case 13:return 16
break;
case 14:return 17
break;
case 15:return 18
break;
case 16:return 5
break;
case 17:return 'INVALID'
break;
}
};
lexer.rules = [/^\s+/,/^[0-9]+(\.[0-9]+)?\b/,/^n\b/,/^\|\|/,/^&&/,/^\?/,/^:/,/^<=/,/^>=/,/^</,/^>/,/^!=/,/^==/,/^%/,/^\(/,/^\)/,/^$/,/^./];
lexer.conditions = {"INITIAL":{"rules":[0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17],"inclusive":true}};return lexer;})()
parser.lexer = lexer;
return parser;
})();
// End parser

  // Handle node, amd, and global systems
  if (typeof exports !== 'undefined') {
    if (typeof module !== 'undefined' && module.exports) {
      exports = module.exports = Jed;
    }
    exports.Jed = Jed;
  }
  else {
    if (typeof define === 'function' && define.amd) {
      define('jed', [],function() {
        return Jed;
      });
    }
    // Leak a global regardless of module system
    root['Jed'] = Jed;
  }

})(this);

/**
 * @license text 2.0.15 Copyright jQuery Foundation and other contributors.
 * Released under MIT license, http://github.com/requirejs/text/LICENSE
 */
/*jslint regexp: true */
/*global require, XMLHttpRequest, ActiveXObject,
  define, window, process, Packages,
  java, location, Components, FileUtils */

define('text',['module'], function (module) {
    'use strict';

    var text, fs, Cc, Ci, xpcIsWindows,
        progIds = ['Msxml2.XMLHTTP', 'Microsoft.XMLHTTP', 'Msxml2.XMLHTTP.4.0'],
        xmlRegExp = /^\s*<\?xml(\s)+version=[\'\"](\d)*.(\d)*[\'\"](\s)*\?>/im,
        bodyRegExp = /<body[^>]*>\s*([\s\S]+)\s*<\/body>/im,
        hasLocation = typeof location !== 'undefined' && location.href,
        defaultProtocol = hasLocation && location.protocol && location.protocol.replace(/\:/, ''),
        defaultHostName = hasLocation && location.hostname,
        defaultPort = hasLocation && (location.port || undefined),
        buildMap = {},
        masterConfig = (module.config && module.config()) || {};

    function useDefault(value, defaultValue) {
        return value === undefined || value === '' ? defaultValue : value;
    }

    //Allow for default ports for http and https.
    function isSamePort(protocol1, port1, protocol2, port2) {
        if (port1 === port2) {
            return true;
        } else if (protocol1 === protocol2) {
            if (protocol1 === 'http') {
                return useDefault(port1, '80') === useDefault(port2, '80');
            } else if (protocol1 === 'https') {
                return useDefault(port1, '443') === useDefault(port2, '443');
            }
        }
        return false;
    }

    text = {
        version: '2.0.15',

        strip: function (content) {
            //Strips <?xml ...?> declarations so that external SVG and XML
            //documents can be added to a document without worry. Also, if the string
            //is an HTML document, only the part inside the body tag is returned.
            if (content) {
                content = content.replace(xmlRegExp, "");
                var matches = content.match(bodyRegExp);
                if (matches) {
                    content = matches[1];
                }
            } else {
                content = "";
            }
            return content;
        },

        jsEscape: function (content) {
            return content.replace(/(['\\])/g, '\\$1')
                .replace(/[\f]/g, "\\f")
                .replace(/[\b]/g, "\\b")
                .replace(/[\n]/g, "\\n")
                .replace(/[\t]/g, "\\t")
                .replace(/[\r]/g, "\\r")
                .replace(/[\u2028]/g, "\\u2028")
                .replace(/[\u2029]/g, "\\u2029");
        },

        createXhr: masterConfig.createXhr || function () {
            //Would love to dump the ActiveX crap in here. Need IE 6 to die first.
            var xhr, i, progId;
            if (typeof XMLHttpRequest !== "undefined") {
                return new XMLHttpRequest();
            } else if (typeof ActiveXObject !== "undefined") {
                for (i = 0; i < 3; i += 1) {
                    progId = progIds[i];
                    try {
                        xhr = new ActiveXObject(progId);
                    } catch (e) {}

                    if (xhr) {
                        progIds = [progId];  // so faster next time
                        break;
                    }
                }
            }

            return xhr;
        },

        /**
         * Parses a resource name into its component parts. Resource names
         * look like: module/name.ext!strip, where the !strip part is
         * optional.
         * @param {String} name the resource name
         * @returns {Object} with properties "moduleName", "ext" and "strip"
         * where strip is a boolean.
         */
        parseName: function (name) {
            var modName, ext, temp,
                strip = false,
                index = name.lastIndexOf("."),
                isRelative = name.indexOf('./') === 0 ||
                             name.indexOf('../') === 0;

            if (index !== -1 && (!isRelative || index > 1)) {
                modName = name.substring(0, index);
                ext = name.substring(index + 1);
            } else {
                modName = name;
            }

            temp = ext || modName;
            index = temp.indexOf("!");
            if (index !== -1) {
                //Pull off the strip arg.
                strip = temp.substring(index + 1) === "strip";
                temp = temp.substring(0, index);
                if (ext) {
                    ext = temp;
                } else {
                    modName = temp;
                }
            }

            return {
                moduleName: modName,
                ext: ext,
                strip: strip
            };
        },

        xdRegExp: /^((\w+)\:)?\/\/([^\/\\]+)/,

        /**
         * Is an URL on another domain. Only works for browser use, returns
         * false in non-browser environments. Only used to know if an
         * optimized .js version of a text resource should be loaded
         * instead.
         * @param {String} url
         * @returns Boolean
         */
        useXhr: function (url, protocol, hostname, port) {
            var uProtocol, uHostName, uPort,
                match = text.xdRegExp.exec(url);
            if (!match) {
                return true;
            }
            uProtocol = match[2];
            uHostName = match[3];

            uHostName = uHostName.split(':');
            uPort = uHostName[1];
            uHostName = uHostName[0];

            return (!uProtocol || uProtocol === protocol) &&
                   (!uHostName || uHostName.toLowerCase() === hostname.toLowerCase()) &&
                   ((!uPort && !uHostName) || isSamePort(uProtocol, uPort, protocol, port));
        },

        finishLoad: function (name, strip, content, onLoad) {
            content = strip ? text.strip(content) : content;
            if (masterConfig.isBuild) {
                buildMap[name] = content;
            }
            onLoad(content);
        },

        load: function (name, req, onLoad, config) {
            //Name has format: some.module.filext!strip
            //The strip part is optional.
            //if strip is present, then that means only get the string contents
            //inside a body tag in an HTML string. For XML/SVG content it means
            //removing the <?xml ...?> declarations so the content can be inserted
            //into the current doc without problems.

            // Do not bother with the work if a build and text will
            // not be inlined.
            if (config && config.isBuild && !config.inlineText) {
                onLoad();
                return;
            }

            masterConfig.isBuild = config && config.isBuild;

            var parsed = text.parseName(name),
                nonStripName = parsed.moduleName +
                    (parsed.ext ? '.' + parsed.ext : ''),
                url = req.toUrl(nonStripName),
                useXhr = (masterConfig.useXhr) ||
                         text.useXhr;

            // Do not load if it is an empty: url
            if (url.indexOf('empty:') === 0) {
                onLoad();
                return;
            }

            //Load the text. Use XHR if possible and in a browser.
            if (!hasLocation || useXhr(url, defaultProtocol, defaultHostName, defaultPort)) {
                text.get(url, function (content) {
                    text.finishLoad(name, parsed.strip, content, onLoad);
                }, function (err) {
                    if (onLoad.error) {
                        onLoad.error(err);
                    }
                });
            } else {
                //Need to fetch the resource across domains. Assume
                //the resource has been optimized into a JS module. Fetch
                //by the module name + extension, but do not include the
                //!strip part to avoid file system issues.
                req([nonStripName], function (content) {
                    text.finishLoad(parsed.moduleName + '.' + parsed.ext,
                                    parsed.strip, content, onLoad);
                });
            }
        },

        write: function (pluginName, moduleName, write, config) {
            if (buildMap.hasOwnProperty(moduleName)) {
                var content = text.jsEscape(buildMap[moduleName]);
                write.asModule(pluginName + "!" + moduleName,
                               "define(function () { return '" +
                                   content +
                               "';});\n");
            }
        },

        writeFile: function (pluginName, moduleName, req, write, config) {
            var parsed = text.parseName(moduleName),
                extPart = parsed.ext ? '.' + parsed.ext : '',
                nonStripName = parsed.moduleName + extPart,
                //Use a '.js' file name so that it indicates it is a
                //script that can be loaded across domains.
                fileName = req.toUrl(parsed.moduleName + extPart) + '.js';

            //Leverage own load() method to load plugin value, but only
            //write out values that do not have the strip argument,
            //to avoid any potential issues with ! in file names.
            text.load(nonStripName, req, function (value) {
                //Use own write() method to construct full module value.
                //But need to create shell that translates writeFile's
                //write() to the right interface.
                var textWrite = function (contents) {
                    return write(fileName, contents);
                };
                textWrite.asModule = function (moduleName, contents) {
                    return write.asModule(moduleName, fileName, contents);
                };

                text.write(pluginName, nonStripName, textWrite, config);
            }, config);
        }
    };

    if (masterConfig.env === 'node' || (!masterConfig.env &&
            typeof process !== "undefined" &&
            process.versions &&
            !!process.versions.node &&
            !process.versions['node-webkit'] &&
            !process.versions['atom-shell'])) {
        //Using special require.nodeRequire, something added by r.js.
        fs = require.nodeRequire('fs');

        text.get = function (url, callback, errback) {
            try {
                var file = fs.readFileSync(url, 'utf8');
                //Remove BOM (Byte Mark Order) from utf8 files if it is there.
                if (file[0] === '\uFEFF') {
                    file = file.substring(1);
                }
                callback(file);
            } catch (e) {
                if (errback) {
                    errback(e);
                }
            }
        };
    } else if (masterConfig.env === 'xhr' || (!masterConfig.env &&
            text.createXhr())) {
        text.get = function (url, callback, errback, headers) {
            var xhr = text.createXhr(), header;
            xhr.open('GET', url, true);

            //Allow plugins direct access to xhr headers
            if (headers) {
                for (header in headers) {
                    if (headers.hasOwnProperty(header)) {
                        xhr.setRequestHeader(header.toLowerCase(), headers[header]);
                    }
                }
            }

            //Allow overrides specified in config
            if (masterConfig.onXhr) {
                masterConfig.onXhr(xhr, url);
            }

            xhr.onreadystatechange = function (evt) {
                var status, err;
                //Do not explicitly handle errors, those should be
                //visible via console output in the browser.
                if (xhr.readyState === 4) {
                    status = xhr.status || 0;
                    if (status > 399 && status < 600) {
                        //An http 4xx or 5xx error. Signal an error.
                        err = new Error(url + ' HTTP status: ' + status);
                        err.xhr = xhr;
                        if (errback) {
                            errback(err);
                        }
                    } else {
                        callback(xhr.responseText);
                    }

                    if (masterConfig.onXhrComplete) {
                        masterConfig.onXhrComplete(xhr, url);
                    }
                }
            };
            xhr.send(null);
        };
    } else if (masterConfig.env === 'rhino' || (!masterConfig.env &&
            typeof Packages !== 'undefined' && typeof java !== 'undefined')) {
        //Why Java, why is this so awkward?
        text.get = function (url, callback) {
            var stringBuffer, line,
                encoding = "utf-8",
                file = new java.io.File(url),
                lineSeparator = java.lang.System.getProperty("line.separator"),
                input = new java.io.BufferedReader(new java.io.InputStreamReader(new java.io.FileInputStream(file), encoding)),
                content = '';
            try {
                stringBuffer = new java.lang.StringBuffer();
                line = input.readLine();

                // Byte Order Mark (BOM) - The Unicode Standard, version 3.0, page 324
                // http://www.unicode.org/faq/utf_bom.html

                // Note that when we use utf-8, the BOM should appear as "EF BB BF", but it doesn't due to this bug in the JDK:
                // http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4508058
                if (line && line.length() && line.charAt(0) === 0xfeff) {
                    // Eat the BOM, since we've already found the encoding on this file,
                    // and we plan to concatenating this buffer with others; the BOM should
                    // only appear at the top of a file.
                    line = line.substring(1);
                }

                if (line !== null) {
                    stringBuffer.append(line);
                }

                while ((line = input.readLine()) !== null) {
                    stringBuffer.append(lineSeparator);
                    stringBuffer.append(line);
                }
                //Make sure we return a JavaScript string and not a Java string.
                content = String(stringBuffer.toString()); //String
            } finally {
                input.close();
            }
            callback(content);
        };
    } else if (masterConfig.env === 'xpconnect' || (!masterConfig.env &&
            typeof Components !== 'undefined' && Components.classes &&
            Components.interfaces)) {
        //Avert your gaze!
        Cc = Components.classes;
        Ci = Components.interfaces;
        Components.utils['import']('resource://gre/modules/FileUtils.jsm');
        xpcIsWindows = ('@mozilla.org/windows-registry-key;1' in Cc);

        text.get = function (url, callback) {
            var inStream, convertStream, fileObj,
                readData = {};

            if (xpcIsWindows) {
                url = url.replace(/\//g, '\\');
            }

            fileObj = new FileUtils.File(url);

            //XPCOM, you so crazy
            try {
                inStream = Cc['@mozilla.org/network/file-input-stream;1']
                           .createInstance(Ci.nsIFileInputStream);
                inStream.init(fileObj, 1, 0, false);

                convertStream = Cc['@mozilla.org/intl/converter-input-stream;1']
                                .createInstance(Ci.nsIConverterInputStream);
                convertStream.init(inStream, "utf-8", inStream.available(),
                Ci.nsIConverterInputStream.DEFAULT_REPLACEMENT_CHARACTER);

                convertStream.readString(inStream.available(), readData);
                convertStream.close();
                inStream.close();
                callback(readData.value);
            } catch (e) {
                throw new Error((fileObj && fileObj.path || '') + ': ' + e);
            }
        };
    }
    return text;
});


define('text!af',[],function () { return '{\n   "domain": "converse",\n   "locale_data": {\n      "converse": {\n         "": {\n            "domain": "converse",\n            "plural_forms": "nplurals=2; plural=n != 1;",\n            "lang": "af"\n         },\n         "Bookmark this room": [\n            null,\n            "Boekmerk hierdie kletskamer"\n         ],\n         "The name for this bookmark:": [\n            null,\n            "Die naam vir hierdie boekmerk:"\n         ],\n         "Would you like this room to be automatically joined upon startup?": [\n            null,\n            "Moet hierdie kletskamer outomaties betree word tydens aanmelding?"\n         ],\n         "What should your nickname for this room be?": [\n            null,\n            "Wat sal u bynaam vir hierdie kletskamer wees?"\n         ],\n         "Save": [\n            null,\n            "Stoor"\n         ],\n         "Cancel": [\n            null,\n            "Kanseleer"\n         ],\n         "Sorry, something went wrong while trying to save your bookmark.": [\n            null,\n            "Jammer, \'n fout het voorgekom tydens storing van u boekmerk."\n         ],\n         "Click to toggle the bookmarks list": [\n            null,\n            "Klik om die boekmerklys te skakel"\n         ],\n         "Bookmarked Rooms": [\n            null,\n            "Kletskamerboekmerke"\n         ],\n         "Are you sure you want to remove the bookmark \\"%1$s\\"?": [\n            null,\n            "Is u seker u wil die boekmerk \\"%1$s\\" verwyder?"\n         ],\n         "Click to open this room": [\n            null,\n            "Klik om hierdie kletskamer te open"\n         ],\n         "Show more information on this room": [\n            null,\n            "Wys meer inligting aangaande hierdie kletskamer"\n         ],\n         "Remove this bookmark": [\n            null,\n            "Verwyder hierdie boekmerk"\n         ],\n         "You have unread messages": [\n            null,\n            "U het ongelese boodskappe"\n         ],\n         "Close this chat box": [\n            null,\n            "Sluit hierdie kletskas"\n         ],\n         "Personal message": [\n            null,\n            "Persoonlike boodskap"\n         ],\n         "Send": [\n            null,\n            ""\n         ],\n         "me": [\n            null,\n            "ek"\n         ],\n         "A very large message has been received.This might be due to an attack meant to degrade the chat performance.Output has been shortened.": [\n            null,\n            "\'n Baie groot boodskap is ontvang. Dit mag dalk \'n aanval wees om werkverrigting te ontwrig. Die boodskap word dus slegs in verkorte weergawe vertoon."\n         ],\n         "Typing from another device": [\n            null,\n            ""\n         ],\n         "is typing": [\n            null,\n            "tik tans"\n         ],\n         "Stopped typing on the other device": [\n            null,\n            ""\n         ],\n         "has stopped typing": [\n            null,\n            "het opgehou tik"\n         ],\n         "has gone away": [\n            null,\n            "het weggegaan"\n         ],\n         "Show this menu": [\n            null,\n            "Vertoon hierdie keuselys"\n         ],\n         "Write in the third person": [\n            null,\n            "Skryf in die derde persoon"\n         ],\n         "Remove messages": [\n            null,\n            "Verwyder boodskappe"\n         ],\n         "Are you sure you want to clear the messages from this chat box?": [\n            null,\n            "Is u seker u wil die boodskappe in hierdie kletskas uitvee?"\n         ],\n         "has gone offline": [\n            null,\n            "is nou aflyn"\n         ],\n         "is busy": [\n            null,\n            "is besig"\n         ],\n         "Clear all messages": [\n            null,\n            "Vee alle boodskappe uit"\n         ],\n         "Insert a smiley": [\n            null,\n            "Voeg \'n emotikon by"\n         ],\n         "Start a call": [\n            null,\n            "Begin \'n oproep"\n         ],\n         "Contacts": [\n            null,\n            "Kontakte"\n         ],\n         "XMPP Username:": [\n            null,\n            "XMPP Gebruikersnaam:"\n         ],\n         "Password:": [\n            null,\n            "Wagwoord:"\n         ],\n         "Click here to log in anonymously": [\n            null,\n            "Klik hier om anoniem aan te meld"\n         ],\n         "Log In": [\n            null,\n            "Meld aan"\n         ],\n         "Username": [\n            null,\n            "Gebruikersnaam"\n         ],\n         "user@server": [\n            null,\n            "gebruiker@bediener"\n         ],\n         "password": [\n            null,\n            "wagwoord"\n         ],\n         "Sign in": [\n            null,\n            "Teken in"\n         ],\n         "I am %1$s": [\n            null,\n            "Ek is %1$s"\n         ],\n         "Click here to write a custom status message": [\n            null,\n            "Klik hier om jou eie statusboodskap te skryf"\n         ],\n         "Click to change your chat status": [\n            null,\n            "Klik om jou klets-status te verander"\n         ],\n         "Custom status": [\n            null,\n            "Doelgemaakte status"\n         ],\n         "online": [\n            null,\n            "aangemeld"\n         ],\n         "busy": [\n            null,\n            "besig"\n         ],\n         "away for long": [\n            null,\n            "vir lank afwesig"\n         ],\n         "away": [\n            null,\n            "afwesig"\n         ],\n         "offline": [\n            null,\n            "afgemeld"\n         ],\n         "Online": [\n            null,\n            "Aangemeld"\n         ],\n         "Busy": [\n            null,\n            "Besig"\n         ],\n         "Away": [\n            null,\n            "Afwesig"\n         ],\n         "Offline": [\n            null,\n            "Afgemeld"\n         ],\n         "Log out": [\n            null,\n            "Meld af"\n         ],\n         "Contact name": [\n            null,\n            "Kontaknaam"\n         ],\n         "Search": [\n            null,\n            "Soek"\n         ],\n         "e.g. user@example.org": [\n            null,\n            "bv. gebruiker@voorbeeld.org"\n         ],\n         "Add": [\n            null,\n            "Voeg by"\n         ],\n         "Click to add new chat contacts": [\n            null,\n            "Klik om nuwe kletskontakte by te voeg"\n         ],\n         "Add a contact": [\n            null,\n            "Voeg \'n kontak by"\n         ],\n         "No users found": [\n            null,\n            "Geen gebruikers gevind"\n         ],\n         "Click to add as a chat contact": [\n            null,\n            "Klik om as kletskontak by te voeg"\n         ],\n         "Toggle chat": [\n            null,\n            "Klets"\n         ],\n         "Reconnecting": [\n            null,\n            "Herkonnekteer"\n         ],\n         "The connection has dropped, attempting to reconnect.": [\n            null,\n            "Die konneksie is onderbreek, probeer tans tans om te herkonnekteer."\n         ],\n         "Connection error": [\n            null,\n            "Fout tydens verbinding"\n         ],\n         "An error occurred while connecting to the chat server.": [\n            null,\n            "A fout het voorgekom tydens verbinding met die kletsbediener."\n         ],\n         "Connecting": [\n            null,\n            "Verbind tans"\n         ],\n         "Authenticating": [\n            null,\n            "Besig om te bekragtig"\n         ],\n         "Authentication Failed": [\n            null,\n            "Bekragtiging het gefaal"\n         ],\n         "Connection failed": [\n            null,\n            "Verbinding het gefaal"\n         ],\n         "An error occurred while connecting to the chat server: ": [\n            null,\n            "A fout het voorgekom tydens verbinding met die kletsbediener: "\n         ],\n         "Sorry, there was an error while trying to add ": [\n            null,\n            "Jammer, \'n ander fout het voorgekom tydens byvoeging. "\n         ],\n         "This client does not allow presence subscriptions": [\n            null,\n            "Hierdie klient laat nie beskikbaarheidsinskrywings toe nie"\n         ],\n         "Click to hide these contacts": [\n            null,\n            "Klik om hierdie kontakte te verskuil"\n         ],\n         "Close this box": [\n            null,\n            "Maak hierdie kletskas toe"\n         ],\n         "Minimize this chat box": [\n            null,\n            "Minimeer hierdie kletskas"\n         ],\n         "Click to restore this chat": [\n            null,\n            "Klik om hierdie klets te herstel"\n         ],\n         "Minimized": [\n            null,\n            "Geminimaliseer"\n         ],\n         "This room is not anonymous": [\n            null,\n            "Hierdie vertrek is nie anoniem nie"\n         ],\n         "This room now shows unavailable members": [\n            null,\n            "Hierdie vertrek wys nou onbeskikbare lede"\n         ],\n         "This room does not show unavailable members": [\n            null,\n            "Hierdie vertrek wys nie onbeskikbare lede nie"\n         ],\n         "The room configuration has changed": [\n            null,\n            "Die kamer instellings het verander"\n         ],\n         "Room logging is now enabled": [\n            null,\n            "Kamer log is nou aangeskakel"\n         ],\n         "Room logging is now disabled": [\n            null,\n            "Kamer log is nou afgeskakel"\n         ],\n         "This room is now no longer anonymous": [\n            null,\n            "Hiedie kamer is nie meer anoniem nie"\n         ],\n         "This room is now semi-anonymous": [\n            null,\n            "Hierdie kamer is nou gedeeltelik anoniem"\n         ],\n         "This room is now fully-anonymous": [\n            null,\n            "Hierdie kamer is nou ten volle anoniem"\n         ],\n         "A new room has been created": [\n            null,\n            "\'n Nuwe kamer is geskep"\n         ],\n         "You have been banned from this room": [\n            null,\n            "Jy is uit die kamer verban"\n         ],\n         "You have been kicked from this room": [\n            null,\n            "Jy is uit die kamer geskop"\n         ],\n         "You have been removed from this room because of an affiliation change": [\n            null,\n            "Jy is vanuit die kamer verwyder a.g.v \'n verandering van affiliasie"\n         ],\n         "You have been removed from this room because the room has changed to members-only and you\'re not a member": [\n            null,\n            "Jy is vanuit die kamer verwyder omdat die kamer nou slegs tot lede beperk word en jy nie \'n lid is nie"\n         ],\n         "You have been removed from this room because the MUC (Multi-user chat) service is being shut down.": [\n            null,\n            "Jy is van hierdie kamer verwyder aangesien die MUC (Multi-user chat) diens nou afgeskakel word."\n         ],\n         "%1$s has been banned": [\n            null,\n            "%1$s is verban"\n         ],\n         "%1$s\'s nickname has changed": [\n            null,\n            "%1$s se bynaam het verander"\n         ],\n         "%1$s has been kicked out": [\n            null,\n            "%1$s is uitgeskop"\n         ],\n         "%1$s has been removed because of an affiliation change": [\n            null,\n            "%1$s is verwyder a.g.v \'n verandering van affiliasie"\n         ],\n         "%1$s has been removed for not being a member": [\n            null,\n            "%1$s is nie \'n lid nie, en dus verwyder"\n         ],\n         "Your nickname has been automatically set to: %1$s": [\n            null,\n            "U bynaam is outomaties gestel na: %1$s"\n         ],\n         "Your nickname has been changed to: %1$s": [\n            null,\n            "U bynaam is verander na: %1$s"\n         ],\n         "Message": [\n            null,\n            "Boodskap"\n         ],\n         "Close and leave this room": [\n            null,\n            "Sluit en verlaat hierdie kletskamer"\n         ],\n         "Configure this room": [\n            null,\n            "Konfigureer hierdie kletskamer"\n         ],\n         "Hide the list of occupants": [\n            null,\n            "Verskuil die lys van deelnemers"\n         ],\n         "Error: the \\"": [\n            null,\n            "Fout: die \\""\n         ],\n         "Are you sure you want to clear the messages from this room?": [\n            null,\n            "Is u seker dat u die boodskappe in hierdie kamer wil verwyder?"\n         ],\n         "Error: could not execute the command": [\n            null,\n            "Fout: kon nie die opdrag uitvoer nie"\n         ],\n         "Change user\'s affiliation to admin": [\n            null,\n            "Verander die gebruiker se affiliasie na admin"\n         ],\n         "Ban user from room": [\n            null,\n            "Verban gebruiker uit hierdie kletskamer"\n         ],\n         "Change user role to occupant": [\n            null,\n            "Verander gebruiker se rol na lid"\n         ],\n         "Kick user from room": [\n            null,\n            "Skop gebruiker uit hierdie kletskamer"\n         ],\n         "Write in 3rd person": [\n            null,\n            "Skryf in die derde persoon"\n         ],\n         "Grant membership to a user": [\n            null,\n            "Verleen lidmaatskap aan \'n gebruiker"\n         ],\n         "Remove user\'s ability to post messages": [\n            null,\n            "Verwyder gebruiker se vermoë om boodskappe te plaas"\n         ],\n         "Change your nickname": [\n            null,\n            "Verander u bynaam"\n         ],\n         "Grant moderator role to user": [\n            null,\n            "Verleen moderator rol aan gebruiker"\n         ],\n         "Grant ownership of this room": [\n            null,\n            "Verleen eienaarskap van hierdie kamer"\n         ],\n         "Revoke user\'s membership": [\n            null,\n            "Herroep gebruiker se lidmaatskap"\n         ],\n         "Set room subject": [\n            null,\n            "Stel onderwerp vir kletskamer"\n         ],\n         "Set room subject (alias for /subject)": [\n            null,\n            "Verskaf kamer onderwerp (alias vir /subject)"\n         ],\n         "Allow muted user to post messages": [\n            null,\n            "Laat stilgemaakte gebruiker toe om weer boodskappe te plaas"\n         ],\n         "The nickname you chose is reserved or currently in use, please choose a different one.": [\n            null,\n            "Die bynaam wat u gekies het is gereserveer of tans in gebruik, kies asb. \'n ander een."\n         ],\n         "Please choose your nickname": [\n            null,\n            "Kies asb. u bynaam"\n         ],\n         "Nickname": [\n            null,\n            "Bynaam"\n         ],\n         "Enter room": [\n            null,\n            "Betree kletskamer"\n         ],\n         "This chatroom requires a password": [\n            null,\n            "Hiedie kletskamer benodig \'n wagwoord"\n         ],\n         "Password: ": [\n            null,\n            "Wagwoord: "\n         ],\n         "Submit": [\n            null,\n            "Dien in"\n         ],\n         "This action was done by %1$s.": [\n            null,\n            "Hierdie aksie is uitgevoer deur: %1$s."\n         ],\n         "The reason given is: \\"%1$s\\".": [\n            null,\n            "Die gegewe rede is: \\"%1$s\\"."\n         ],\n         "The reason given is: \\"": [\n            null,\n            "Die gegewe rede is: \\""\n         ],\n         " has left the room. \\"": [\n            null,\n            " het die kamer verlaat.\\""\n         ],\n         " has left the room": [\n            null,\n            " het die kletskamer verlaat"\n         ],\n         " has joined the room. \\"": [\n            null,\n            " het die kamer binnegekom.\\""\n         ],\n         " has joined the room.": [\n            null,\n            " het die kamer bygetree."\n         ],\n         "You are not on the member list of this room.": [\n            null,\n            "Jy is nie op die ledelys van hierdie kamer nie."\n         ],\n         "You have been banned from this room.": [\n            null,\n            "Jy is uit die kamer verban."\n         ],\n         "No nickname was specified.": [\n            null,\n            "Geen bynaam verskaf nie."\n         ],\n         "You are not allowed to create new rooms.": [\n            null,\n            "Jy word nie toegelaat om nog kletskamers te skep nie."\n         ],\n         "Your nickname doesn\'t conform to this room\'s policies.": [\n            null,\n            "Jou bynaam voldoen nie aan die kamer se beleid nie."\n         ],\n         "This room does not (yet) exist.": [\n            null,\n            "Hierdie kamer bestaan tans (nog) nie."\n         ],\n         "This room has reached its maximum number of occupants.": [\n            null,\n            "Hierdie kletskamer het sy maksimum aantal deelnemers bereik."\n         ],\n         "Topic set by %1$s to: %2$s": [\n            null,\n            "Onderwerp deur %1$s bygewerk na: %2$s"\n         ],\n         "Click to mention ": [\n            null,\n            "Klik om te noem "\n         ],\n         "This user is a moderator.": [\n            null,\n            "Hierdie gebruiker is \'n moderator."\n         ],\n         "This user can send messages in this room.": [\n            null,\n            "Hierdie gebruiker kan boodskappe na die kamer stuur."\n         ],\n         "This user can NOT send messages in this room.": [\n            null,\n            "Hierdie gebruiker kan NIE boodskappe na die kamer stuur nie."\n         ],\n         "Occupants": [\n            null,\n            "Deelnemers"\n         ],\n         "Invite": [\n            null,\n            "Nooi uit"\n         ],\n         "Features": [\n            null,\n            "Eienskappe"\n         ],\n         "Hidden": [\n            null,\n            "Verskuil"\n         ],\n         "Message archiving": [\n            null,\n            "Boodskap-argivering"\n         ],\n         "Members only": [\n            null,\n            "Slegs lede"\n         ],\n         "Moderated": [\n            null,\n            "Gemodereer"\n         ],\n         "Non-anonymous": [\n            null,\n            "Nie-anoniem"\n         ],\n         "Open": [\n            null,\n            "Oop kletskamer"\n         ],\n         "Password protected": [\n            null,\n            "Wagwoord"\n         ],\n         "Persistent": [\n            null,\n            "Blywend"\n         ],\n         "Public": [\n            null,\n            "Publiek"\n         ],\n         "Semi-anonymous": [\n            null,\n            "Deels anoniem"\n         ],\n         "Temporary": [\n            null,\n            "Tydelike kamer"\n         ],\n         "Unmoderated": [\n            null,\n            "Ongemodereer"\n         ],\n         "Unsecured": [\n            null,\n            "Onversekerd"\n         ],\n         "This room is not publicly searchable": [\n            null,\n            "Hierdie kletskamer is nie publiek opspoorbaar nie"\n         ],\n         "Messages are archived on the server": [\n            null,\n            "Boodskappe word op die bediener gestoor"\n         ],\n         "This room is restricted to members only": [\n            null,\n            "Hierdie kletskamer is slegs tot lede beperk"\n         ],\n         "This room is being moderated": [\n            null,\n            "Hierdie kletskamer word gemodereer"\n         ],\n         "All other room occupants can see your Jabber ID": [\n            null,\n            "Alle ander deelnemers can u Jabber ID sien"\n         ],\n         "Anyone can join this room": [\n            null,\n            "Enige iemand kan hierdie kletskamer binnekom"\n         ],\n         "This room requires a password before entry": [\n            null,\n            "Hierdie kletskamer benodig \'n wagwoord"\n         ],\n         "This room persists even if it\'s unoccupied": [\n            null,\n            "Hierdie kletskamer bestaan voort selfs al is dit leeg"\n         ],\n         "This room is publicly searchable": [\n            null,\n            "Hierdie kletskamer is publiek opspoorbaar"\n         ],\n         "Only moderators can see your Jabber ID": [\n            null,\n            "Slegs moderators kan u Jabber ID sien"\n         ],\n         "This room will disappear once the last person leaves": [\n            null,\n            "Hierdie kletskamer sal verdwyn sodra die laaste persoon dit verlaat"\n         ],\n         "This room is not being moderated": [\n            null,\n            "Hierdie kletskamer word nie gemodereer nie"\n         ],\n         "This room does not require a password upon entry": [\n            null,\n            "Hiedie kletskamer benodig nie \'n wagwoord nie"\n         ],\n         "You are about to invite %1$s to the chat room \\"%2$s\\". ": [\n            null,\n            "U is op die punt om %1$s na die kletskamer \\"%2$s\\" uit te nooi. "\n         ],\n         "You may optionally include a message, explaining the reason for the invitation.": [\n            null,\n            "U mag na keuse \'n boodskap insluit, om bv. die rede vir die uitnodiging te staaf."\n         ],\n         "Room name": [\n            null,\n            "Kamer naam"\n         ],\n         "Server": [\n            null,\n            "Bediener"\n         ],\n         "Join Room": [\n            null,\n            "Betree kletskamer"\n         ],\n         "Show rooms": [\n            null,\n            "Wys kletskamers"\n         ],\n         "Rooms": [\n            null,\n            "Kletskamers"\n         ],\n         "No rooms on %1$s": [\n            null,\n            "Geen kletskamers op %1$s"\n         ],\n         "Rooms on %1$s": [\n            null,\n            "Kletskamers op %1$s"\n         ],\n         "Description:": [\n            null,\n            "Beskrywing:"\n         ],\n         "Server:": [\n            null,\n            "Bediener:"\n         ],\n         "Occupants:": [\n            null,\n            "Deelnemers:"\n         ],\n         "Features:": [\n            null,\n            "Eienskappe:"\n         ],\n         "Requires authentication": [\n            null,\n            "Benodig magtiging"\n         ],\n         "Requires an invitation": [\n            null,\n            "Benodig \'n uitnodiging"\n         ],\n         "Open room": [\n            null,\n            "Oop kletskamer"\n         ],\n         "Permanent room": [\n            null,\n            "Permanente kamer"\n         ],\n         "Temporary room": [\n            null,\n            "Tydelike kamer"\n         ],\n         "%1$s has invited you to join a chat room: %2$s": [\n            null,\n            "%1$s het u uitgenooi om die kletskamer %2$s te besoek"\n         ],\n         "%1$s has invited you to join a chat room: %2$s, and left the following reason: \\"%3$s\\"": [\n            null,\n            "%1$s het u uitgenooi om die kletskamer %2$s te besoek, en het die volgende rede verskaf: \\"%3$s\\""\n         ],\n         "Notification from %1$s": [\n            null,\n            "Kennisgewing van %1$s"\n         ],\n         "%1$s says": [\n            null,\n            "%1$s sê"\n         ],\n         "has come online": [\n            null,\n            "het aanlyn gekom"\n         ],\n         "wants to be your contact": [\n            null,\n            "wil jou kontak wees"\n         ],\n         "Re-establishing encrypted session": [\n            null,\n            "Herstel versleutelde sessie"\n         ],\n         "Generating private key.": [\n            null,\n            "Genereer private sleutel."\n         ],\n         "Your browser might become unresponsive.": [\n            null,\n            "U webblaaier mag tydelik onreageerbaar word."\n         ],\n         "Authentication request from %1$s\\n\\nYour chat contact is attempting to verify your identity, by asking you the question below.\\n\\n%2$s": [\n            null,\n            "Identiteitbevestigingsversoek van  %1$s\\n\\nU gespreksmaat probeer om u identiteit te bevestig, deur die volgende vraag te vra \\n\\n%2$s"\n         ],\n         "Could not verify this user\'s identify.": [\n            null,\n            "Kon nie hierdie gebruiker se identitied bevestig nie."\n         ],\n         "Exchanging private key with contact.": [\n            null,\n            "Sleutels word met gespreksmaat uitgeruil."\n         ],\n         "Your messages are not encrypted anymore": [\n            null,\n            "U boodskappe is nie meer versleutel nie"\n         ],\n         "Your messages are now encrypted but your contact\'s identity has not been verified.": [\n            null,\n            "U boodskappe is nou versleutel maar u gespreksmaat se identiteit is nog onseker."\n         ],\n         "Your contact\'s identify has been verified.": [\n            null,\n            "U gespreksmaat se identiteit is bevestig."\n         ],\n         "Your contact has ended encryption on their end, you should do the same.": [\n            null,\n            "U gespreksmaat het versleuteling gestaak, u behoort nou dieselfde te doen."\n         ],\n         "Your message could not be sent": [\n            null,\n            "U boodskap kon nie gestuur word nie"\n         ],\n         "We received an unencrypted message": [\n            null,\n            "Ons het \'n onversleutelde boodskap ontvang"\n         ],\n         "We received an unreadable encrypted message": [\n            null,\n            "Ons het \'n onleesbare versleutelde boodskap ontvang"\n         ],\n         "Here are the fingerprints, please confirm them with %1$s, outside of this chat.\\n\\nFingerprint for you, %2$s: %3$s\\n\\nFingerprint for %1$s: %4$s\\n\\nIf you have confirmed that the fingerprints match, click OK, otherwise click Cancel.": [\n            null,\n            "Hier is die vingerafdrukke, bevestig hulle met %1$s, buite hierdie kletskanaal \\n\\nU vingerafdruk, %2$s: %3$s\\n\\nVingerafdruk vir %1$s: %4$s\\n\\nIndien u die vingerafdrukke bevestig het, klik OK, andersinds klik Kanselleer."\n         ],\n         "You will be prompted to provide a security question and then an answer to that question.\\n\\nYour contact will then be prompted the same question and if they type the exact same answer (case sensitive), their identity will be verified.": [\n            null,\n            "Daar sal van u verwag word om \'n sekuriteitsvraag te stel, en dan ook die antwoord tot daardie vraag te verskaf.\\n\\nU gespreksmaat sal dan daardie vraag gestel word, en indien hulle presies dieselfde antwoord (lw. hoofletters tel) verskaf, sal hul identiteit bevestig wees."\n         ],\n         "What is your security question?": [\n            null,\n            "Wat is u sekuriteitsvraag?"\n         ],\n         "What is the answer to the security question?": [\n            null,\n            "Wat is die antwoord tot die sekuriteitsvraag?"\n         ],\n         "Invalid authentication scheme provided": [\n            null,\n            "Ongeldige verifikasiemetode verskaf"\n         ],\n         "Your messages are not encrypted. Click here to enable OTR encryption.": [\n            null,\n            "U boodskappe is nie versleutel nie. Klik hier om OTR versleuteling te aktiveer."\n         ],\n         "Your messages are encrypted, but your contact has not been verified.": [\n            null,\n            "U boodskappe is versleutel, maar u gespreksmaat se identiteit is not onseker."\n         ],\n         "Your messages are encrypted and your contact verified.": [\n            null,\n            "U boodskappe is versleutel en u gespreksmaat se identiteit bevestig."\n         ],\n         "Your contact has closed their end of the private session, you should do the same": [\n            null,\n            "U gespreksmaat het die private sessie gestaak. U behoort dieselfde te doen"\n         ],\n         "End encrypted conversation": [\n            null,\n            "Beëindig versleutelde gesprek"\n         ],\n         "Refresh encrypted conversation": [\n            null,\n            "Verfris versleutelde gesprek"\n         ],\n         "Start encrypted conversation": [\n            null,\n            "Begin versleutelde gesprek"\n         ],\n         "Verify with fingerprints": [\n            null,\n            "Bevestig met vingerafdrukke"\n         ],\n         "Verify with SMP": [\n            null,\n            "Bevestig met SMP"\n         ],\n         "What\'s this?": [\n            null,\n            "Wat is hierdie?"\n         ],\n         "unencrypted": [\n            null,\n            "nie-privaat"\n         ],\n         "unverified": [\n            null,\n            "onbevestig"\n         ],\n         "verified": [\n            null,\n            "privaat"\n         ],\n         "finished": [\n            null,\n            "afgesluit"\n         ],\n         " e.g. conversejs.org": [\n            null,\n            " bv. conversejs.org"\n         ],\n         "Your XMPP provider\'s domain name:": [\n            null,\n            "U XMPP-verskaffer se domein naam:"\n         ],\n         "Fetch registration form": [\n            null,\n            "Haal die registrasie form"\n         ],\n         "Tip: A list of public XMPP providers is available": [\n            null,\n            "Wenk: A lys van publieke XMPP-verskaffers is beskikbaar"\n         ],\n         "here": [\n            null,\n            "hier"\n         ],\n         "Register": [\n            null,\n            "Registreer"\n         ],\n         "Sorry, the given provider does not support in band account registration. Please try with a different provider.": [\n            null,\n            "Jammer, die gekose verskaffer ondersteun nie in-band registrasie nie.Probeer weer met \'n ander verskaffer."\n         ],\n         "Requesting a registration form from the XMPP server": [\n            null,\n            "Vra tans die XMPP-bediener vir \'n registrasie vorm"\n         ],\n         "Something went wrong while establishing a connection with \\"%1$s\\". Are you sure it exists?": [\n            null,\n            "Iets het fout geloop tydens koppeling met \\"%1$s\\". Is u seker dat dit bestaan?"\n         ],\n         "Now logging you in": [\n            null,\n            "U word nou aangemeld"\n         ],\n         "Registered successfully": [\n            null,\n            "Suksesvol geregistreer"\n         ],\n         "Return": [\n            null,\n            "Terug"\n         ],\n         "The provider rejected your registration attempt. Please check the values you entered for correctness.": [\n            null,\n            "Die verskaffer het u registrasieversoek verwerp. Kontrolleer asb. jou gegewe waardes vir korrektheid."\n         ],\n         "Retry": [\n            null,\n            ""\n         ],\n         "This contact is busy": [\n            null,\n            "Hierdie persoon is besig"\n         ],\n         "This contact is online": [\n            null,\n            "Hierdie persoon is aanlyn"\n         ],\n         "This contact is offline": [\n            null,\n            "Hierdie persoon is aflyn"\n         ],\n         "This contact is unavailable": [\n            null,\n            "Hierdie persoon is onbeskikbaar"\n         ],\n         "This contact is away for an extended period": [\n            null,\n            "Hierdie persoon is vir lank afwesig"\n         ],\n         "This contact is away": [\n            null,\n            "Hierdie persoon is afwesig"\n         ],\n         "Groups": [\n            null,\n            "Groepe"\n         ],\n         "My contacts": [\n            null,\n            "My kontakte"\n         ],\n         "Pending contacts": [\n            null,\n            "Hangende kontakte"\n         ],\n         "Contact requests": [\n            null,\n            "Kontak versoeke"\n         ],\n         "Ungrouped": [\n            null,\n            "Ongegroepeer"\n         ],\n         "Filter": [\n            null,\n            "Filtreer"\n         ],\n         "State": [\n            null,\n            "Kletsstand"\n         ],\n         "Any": [\n            null,\n            "Enige"\n         ],\n         "Chatty": [\n            null,\n            "Geselserig"\n         ],\n         "Extended Away": [\n            null,\n            "Weg vir langer"\n         ],\n         "Click to remove this contact": [\n            null,\n            "Klik om hierdie kontak te verwyder"\n         ],\n         "Click to accept this contact request": [\n            null,\n            "Klik om hierdie kontakversoek te aanvaar"\n         ],\n         "Click to decline this contact request": [\n            null,\n            "Klik om hierdie kontakversoek te weier"\n         ],\n         "Click to chat with this contact": [\n            null,\n            "Klik om met hierdie kontak te klets"\n         ],\n         "Name": [\n            null,\n            "Naam"\n         ],\n         "Are you sure you want to remove this contact?": [\n            null,\n            "Is u seker u wil hierdie gespreksmaat verwyder?"\n         ],\n         "Sorry, there was an error while trying to remove ": [\n            null,\n            "Jammer, \'n fout het voorgekom tydens die verwydering van "\n         ],\n         "Are you sure you want to decline this contact request?": [\n            null,\n            "Is u seker dat u hierdie persoon se versoek wil afkeur?"\n         ]\n      }\n   }\n}';});


define('text!ca',[],function () { return '{\n   "domain": "converse",\n   "locale_data": {\n      "converse": {\n         "": {\n            "domain": "converse",\n            "plural_forms": "nplurals=2; plural=(n != 1);",\n            "lang": "ca"\n         },\n         "Bookmark this room": [\n            null,\n            ""\n         ],\n         "The name for this bookmark:": [\n            null,\n            ""\n         ],\n         "Would you like this room to be automatically joined upon startup?": [\n            null,\n            ""\n         ],\n         "What should your nickname for this room be?": [\n            null,\n            ""\n         ],\n         "Save": [\n            null,\n            "Desa"\n         ],\n         "Cancel": [\n            null,\n            "Cancel·la"\n         ],\n         "Bookmarked Rooms": [\n            null,\n            ""\n         ],\n         "Click to open this room": [\n            null,\n            "Feu clic per obrir aquesta sala"\n         ],\n         "Show more information on this room": [\n            null,\n            "Mostra més informació d\'aquesta sala"\n         ],\n         "Remove this bookmark": [\n            null,\n            ""\n         ],\n         "Close this chat box": [\n            null,\n            "Tanca aquest quadre del xat"\n         ],\n         "Personal message": [\n            null,\n            "Missatge personal"\n         ],\n         "Send": [\n            null,\n            ""\n         ],\n         "me": [\n            null,\n            "jo"\n         ],\n         "A very large message has been received.This might be due to an attack meant to degrade the chat performance.Output has been shortened.": [\n            null,\n            ""\n         ],\n         "Typing from another device": [\n            null,\n            ""\n         ],\n         "is typing": [\n            null,\n            "està escrivint"\n         ],\n         "Stopped typing on the other device": [\n            null,\n            ""\n         ],\n         "has stopped typing": [\n            null,\n            "ha deixat d\'escriure"\n         ],\n         "has gone away": [\n            null,\n            "ha marxat"\n         ],\n         "Show this menu": [\n            null,\n            "Mostra aquest menú"\n         ],\n         "Write in the third person": [\n            null,\n            "Escriu en tercera persona"\n         ],\n         "Remove messages": [\n            null,\n            "Elimina els missatges"\n         ],\n         "Are you sure you want to clear the messages from this chat box?": [\n            null,\n            "Segur que voleu esborrar els missatges d\'aquest quadre del xat?"\n         ],\n         "has gone offline": [\n            null,\n            "s\'ha desconnectat"\n         ],\n         "is busy": [\n            null,\n            "està ocupat"\n         ],\n         "Clear all messages": [\n            null,\n            "Esborra tots els missatges"\n         ],\n         "Insert a smiley": [\n            null,\n            "Insereix una cara somrient"\n         ],\n         "Start a call": [\n            null,\n            "Inicia una trucada"\n         ],\n         "Contacts": [\n            null,\n            "Contactes"\n         ],\n         "XMPP Username:": [\n            null,\n            "Nom d\'usuari XMPP:"\n         ],\n         "Password:": [\n            null,\n            "Contrasenya:"\n         ],\n         "Click here to log in anonymously": [\n            null,\n            "Feu clic aquí per iniciar la sessió de manera anònima"\n         ],\n         "Log In": [\n            null,\n            "Inicia la sessió"\n         ],\n         "user@server": [\n            null,\n            "usuari@servidor"\n         ],\n         "password": [\n            null,\n            "contrasenya"\n         ],\n         "Sign in": [\n            null,\n            "Inicia la sessió"\n         ],\n         "I am %1$s": [\n            null,\n            "Estic %1$s"\n         ],\n         "Click here to write a custom status message": [\n            null,\n            "Feu clic aquí per escriure un missatge d\'estat personalitzat"\n         ],\n         "Click to change your chat status": [\n            null,\n            "Feu clic per canviar l\'estat del xat"\n         ],\n         "Custom status": [\n            null,\n            "Estat personalitzat"\n         ],\n         "online": [\n            null,\n            "en línia"\n         ],\n         "busy": [\n            null,\n            "ocupat"\n         ],\n         "away for long": [\n            null,\n            "absent durant una estona"\n         ],\n         "away": [\n            null,\n            "absent"\n         ],\n         "offline": [\n            null,\n            "desconnectat"\n         ],\n         "Online": [\n            null,\n            "En línia"\n         ],\n         "Busy": [\n            null,\n            "Ocupat"\n         ],\n         "Away": [\n            null,\n            "Absent"\n         ],\n         "Offline": [\n            null,\n            "Desconnectat"\n         ],\n         "Log out": [\n            null,\n            "Tanca la sessió"\n         ],\n         "Contact name": [\n            null,\n            "Nom del contacte"\n         ],\n         "Search": [\n            null,\n            "Cerca"\n         ],\n         "Add": [\n            null,\n            "Afegeix"\n         ],\n         "Click to add new chat contacts": [\n            null,\n            "Feu clic per afegir contactes nous al xat"\n         ],\n         "Add a contact": [\n            null,\n            "Afegeix un contacte"\n         ],\n         "No users found": [\n            null,\n            "No s\'ha trobat cap usuari"\n         ],\n         "Click to add as a chat contact": [\n            null,\n            "Feu clic per afegir com a contacte del xat"\n         ],\n         "Toggle chat": [\n            null,\n            "Canvia de xat"\n         ],\n         "The connection has dropped, attempting to reconnect.": [\n            null,\n            ""\n         ],\n         "Connecting": [\n            null,\n            "S\'està establint la connexió"\n         ],\n         "Authenticating": [\n            null,\n            "S\'està efectuant l\'autenticació"\n         ],\n         "Authentication Failed": [\n            null,\n            "Error d\'autenticació"\n         ],\n         "Sorry, there was an error while trying to add ": [\n            null,\n            "S\'ha produït un error en intentar afegir "\n         ],\n         "This client does not allow presence subscriptions": [\n            null,\n            "Aquest client no admet les subscripcions de presència"\n         ],\n         "Click to hide these contacts": [\n            null,\n            "Feu clic per amagar aquests contactes"\n         ],\n         "Minimize this chat box": [\n            null,\n            "Minimitza aquest quadre del xat"\n         ],\n         "Click to restore this chat": [\n            null,\n            "Feu clic per restaurar aquest xat"\n         ],\n         "Minimized": [\n            null,\n            "Minimitzat"\n         ],\n         "This room is not anonymous": [\n            null,\n            "Aquesta sala no és anònima"\n         ],\n         "This room now shows unavailable members": [\n            null,\n            "Aquesta sala ara mostra membres no disponibles"\n         ],\n         "This room does not show unavailable members": [\n            null,\n            "Aquesta sala no mostra membres no disponibles"\n         ],\n         "Room logging is now enabled": [\n            null,\n            "El registre de la sala està habilitat"\n         ],\n         "Room logging is now disabled": [\n            null,\n            "El registre de la sala està deshabilitat"\n         ],\n         "This room is now semi-anonymous": [\n            null,\n            "Aquesta sala ara és parcialment anònima"\n         ],\n         "This room is now fully-anonymous": [\n            null,\n            "Aquesta sala ara és totalment anònima"\n         ],\n         "A new room has been created": [\n            null,\n            "S\'ha creat una sala nova"\n         ],\n         "You have been banned from this room": [\n            null,\n            "Se us ha expulsat d\'aquesta sala"\n         ],\n         "You have been kicked from this room": [\n            null,\n            "Se us ha expulsat d\'aquesta sala"\n         ],\n         "You have been removed from this room because of an affiliation change": [\n            null,\n            "Se us ha eliminat d\'aquesta sala a causa d\'un canvi d\'afiliació"\n         ],\n         "You have been removed from this room because the room has changed to members-only and you\'re not a member": [\n            null,\n            "Se us ha eliminat d\'aquesta sala perquè ara només permet membres i no en sou membre"\n         ],\n         "You have been removed from this room because the MUC (Multi-user chat) service is being shut down.": [\n            null,\n            "Se us ha eliminat d\'aquesta sala perquè s\'està tancant el servei MUC (xat multiusuari)."\n         ],\n         "Message": [\n            null,\n            "Missatge"\n         ],\n         "Hide the list of occupants": [\n            null,\n            "Amaga la llista d\'ocupants"\n         ],\n         "Error: the \\"": [\n            null,\n            "Error: el \\""\n         ],\n         "Are you sure you want to clear the messages from this room?": [\n            null,\n            "Segur que voleu esborrar els missatges d\'aquesta sala?"\n         ],\n         "Error: could not execute the command": [\n            null,\n            "Error: no s\'ha pogut executar l\'ordre"\n         ],\n         "Change user\'s affiliation to admin": [\n            null,\n            "Canvia l\'afiliació de l\'usuari a administrador"\n         ],\n         "Ban user from room": [\n            null,\n            "Expulsa l\'usuari de la sala"\n         ],\n         "Change user role to occupant": [\n            null,\n            "Canvia el rol de l\'usuari a ocupant"\n         ],\n         "Kick user from room": [\n            null,\n            "Expulsa l\'usuari de la sala"\n         ],\n         "Write in 3rd person": [\n            null,\n            "Escriu en tercera persona"\n         ],\n         "Grant membership to a user": [\n            null,\n            "Atorga una afiliació a un usuari"\n         ],\n         "Remove user\'s ability to post messages": [\n            null,\n            "Elimina la capacitat de l\'usuari de publicar missatges"\n         ],\n         "Change your nickname": [\n            null,\n            "Canvieu el vostre àlies"\n         ],\n         "Grant moderator role to user": [\n            null,\n            "Atorga el rol de moderador a l\'usuari"\n         ],\n         "Grant ownership of this room": [\n            null,\n            "Atorga la propietat d\'aquesta sala"\n         ],\n         "Revoke user\'s membership": [\n            null,\n            "Revoca l\'afiliació de l\'usuari"\n         ],\n         "Set room subject (alias for /subject)": [\n            null,\n            ""\n         ],\n         "Allow muted user to post messages": [\n            null,\n            "Permet que un usuari silenciat publiqui missatges"\n         ],\n         "The nickname you chose is reserved or currently in use, please choose a different one.": [\n            null,\n            ""\n         ],\n         "Nickname": [\n            null,\n            "Àlies"\n         ],\n         "This chatroom requires a password": [\n            null,\n            "Aquesta sala de xat requereix una contrasenya"\n         ],\n         "Password: ": [\n            null,\n            "Contrasenya:"\n         ],\n         "Submit": [\n            null,\n            "Envia"\n         ],\n         "The reason given is: \\"": [\n            null,\n            "El motiu indicat és: \\""\n         ],\n         " has left the room. \\"": [\n            null,\n            ""\n         ],\n         " has joined the room. \\"": [\n            null,\n            ""\n         ],\n         " has joined the room.": [\n            null,\n            ""\n         ],\n         "Topic set by %1$s to: %2$s": [\n            null,\n            "Tema definit per %1$s en: %2$s"\n         ],\n         "Occupants": [\n            null,\n            "Ocupants"\n         ],\n         "Hidden": [\n            null,\n            "Amagat"\n         ],\n         "Message archiving": [\n            null,\n            ""\n         ],\n         "Members only": [\n            null,\n            ""\n         ],\n         "Moderated": [\n            null,\n            "Moderada"\n         ],\n         "Non-anonymous": [\n            null,\n            "No és anònima"\n         ],\n         "Persistent": [\n            null,\n            ""\n         ],\n         "Public": [\n            null,\n            "Pública"\n         ],\n         "Semi-anonymous": [\n            null,\n            "Semianònima"\n         ],\n         "Unmoderated": [\n            null,\n            "No moderada"\n         ],\n         "Unsecured": [\n            null,\n            ""\n         ],\n         "Messages are archived on the server": [\n            null,\n            ""\n         ],\n         "All other room occupants can see your Jabber ID": [\n            null,\n            ""\n         ],\n         "This room persists even if it\'s unoccupied": [\n            null,\n            ""\n         ],\n         "Only moderators can see your Jabber ID": [\n            null,\n            ""\n         ],\n         "This room will disappear once the last person leaves": [\n            null,\n            ""\n         ],\n         "You are about to invite %1$s to the chat room \\"%2$s\\". ": [\n            null,\n            "Esteu a punt de convidar %1$s a la sala de xat \\"%2$s\\". "\n         ],\n         "You may optionally include a message, explaining the reason for the invitation.": [\n            null,\n            "Teniu l\'opció d\'incloure un missatge per explicar el motiu de la invitació."\n         ],\n         "Room name": [\n            null,\n            "Nom de la sala"\n         ],\n         "Server": [\n            null,\n            "Servidor"\n         ],\n         "Join Room": [\n            null,\n            "Uneix-me a la sala"\n         ],\n         "Show rooms": [\n            null,\n            "Mostra les sales"\n         ],\n         "Rooms": [\n            null,\n            "Sales"\n         ],\n         "No rooms on %1$s": [\n            null,\n            "No hi ha cap sala a %1$s"\n         ],\n         "Rooms on %1$s": [\n            null,\n            "Sales a %1$s"\n         ],\n         "Description:": [\n            null,\n            "Descripció:"\n         ],\n         "Occupants:": [\n            null,\n            "Ocupants:"\n         ],\n         "Features:": [\n            null,\n            "Característiques:"\n         ],\n         "Requires authentication": [\n            null,\n            "Cal autenticar-se"\n         ],\n         "Requires an invitation": [\n            null,\n            "Cal tenir una invitació"\n         ],\n         "Open room": [\n            null,\n            "Obre la sala"\n         ],\n         "Permanent room": [\n            null,\n            "Sala permanent"\n         ],\n         "Temporary room": [\n            null,\n            "Sala temporal"\n         ],\n         "%1$s has invited you to join a chat room: %2$s": [\n            null,\n            "%1$s us ha convidat a unir-vos a una sala de xat: %2$s"\n         ],\n         "%1$s has invited you to join a chat room: %2$s, and left the following reason: \\"%3$s\\"": [\n            null,\n            "%1$s us ha convidat a unir-vos a una sala de xat (%2$s) i ha deixat el següent motiu: \\"%3$s\\""\n         ],\n         "Notification from %1$s": [\n            null,\n            ""\n         ],\n         "%1$s says": [\n            null,\n            ""\n         ],\n         "wants to be your contact": [\n            null,\n            ""\n         ],\n         "Re-establishing encrypted session": [\n            null,\n            "S\'està tornant a establir la sessió xifrada"\n         ],\n         "Generating private key.": [\n            null,\n            "S\'està generant la clau privada"\n         ],\n         "Your browser might become unresponsive.": [\n            null,\n            "És possible que el navegador no respongui."\n         ],\n         "Authentication request from %1$s\\n\\nYour chat contact is attempting to verify your identity, by asking you the question below.\\n\\n%2$s": [\n            null,\n            "Sol·licitud d\'autenticació de %1$s\\n\\nEl contacte del xat està intentant verificar la vostra identitat mitjançant la pregunta següent.\\n\\n%2$s"\n         ],\n         "Could not verify this user\'s identify.": [\n            null,\n            "No s\'ha pogut verificar la identitat d\'aquest usuari."\n         ],\n         "Exchanging private key with contact.": [\n            null,\n            "S\'està intercanviant la clau privada amb el contacte."\n         ],\n         "Your messages are not encrypted anymore": [\n            null,\n            "Els vostres missatges ja no estan xifrats"\n         ],\n         "Your messages are now encrypted but your contact\'s identity has not been verified.": [\n            null,\n            "Ara, els vostres missatges estan xifrats, però no s\'ha verificat la identitat del contacte."\n         ],\n         "Your contact\'s identify has been verified.": [\n            null,\n            "S\'ha verificat la identitat del contacte."\n         ],\n         "Your contact has ended encryption on their end, you should do the same.": [\n            null,\n            "El contacte ha conclòs el xifratge; cal que feu el mateix."\n         ],\n         "Your message could not be sent": [\n            null,\n            "No s\'ha pogut enviar el missatge"\n         ],\n         "We received an unencrypted message": [\n            null,\n            "Hem rebut un missatge sense xifrar"\n         ],\n         "We received an unreadable encrypted message": [\n            null,\n            "Hem rebut un missatge xifrat il·legible"\n         ],\n         "Here are the fingerprints, please confirm them with %1$s, outside of this chat.\\n\\nFingerprint for you, %2$s: %3$s\\n\\nFingerprint for %1$s: %4$s\\n\\nIf you have confirmed that the fingerprints match, click OK, otherwise click Cancel.": [\n            null,\n            "Aquí es mostren les empremtes. Confirmeu-les amb %1$s fora d\'aquest xat.\\n\\nEmpremta de l\'usuari %2$s: %3$s\\n\\nEmpremta de %1$s: %4$s\\n\\nSi heu confirmat que les empremtes coincideixen, feu clic a D\'acord; en cas contrari, feu clic a Cancel·la."\n         ],\n         "You will be prompted to provide a security question and then an answer to that question.\\n\\nYour contact will then be prompted the same question and if they type the exact same answer (case sensitive), their identity will be verified.": [\n            null,\n            "Se us demanarà que indiqueu una pregunta de seguretat i la resposta corresponent.\\n\\nEs farà la mateixa pregunta al vostre contacte i, si escriu exactament la mateixa resposta (es distingeix majúscules de minúscules), se\'n verificarà la identitat."\n         ],\n         "What is your security question?": [\n            null,\n            "Quina és la vostra pregunta de seguretat?"\n         ],\n         "What is the answer to the security question?": [\n            null,\n            "Quina és la resposta a la pregunta de seguretat?"\n         ],\n         "Invalid authentication scheme provided": [\n            null,\n            "S\'ha indicat un esquema d\'autenticació no vàlid"\n         ],\n         "Your messages are not encrypted. Click here to enable OTR encryption.": [\n            null,\n            "Els vostres missatges no estan xifrats. Feu clic aquí per habilitar el xifratge OTR."\n         ],\n         "Your messages are encrypted, but your contact has not been verified.": [\n            null,\n            "Els vostres missatges estan xifrats, però no s\'ha verificat el contacte."\n         ],\n         "Your messages are encrypted and your contact verified.": [\n            null,\n            "Els vostres missatges estan xifrats i s\'ha verificat el contacte."\n         ],\n         "Your contact has closed their end of the private session, you should do the same": [\n            null,\n            "El vostre contacte ha tancat la seva sessió privada; cal que feu el mateix."\n         ],\n         "End encrypted conversation": [\n            null,\n            "Finalitza la conversa xifrada"\n         ],\n         "Refresh encrypted conversation": [\n            null,\n            "Actualitza la conversa xifrada"\n         ],\n         "Start encrypted conversation": [\n            null,\n            "Comença la conversa xifrada"\n         ],\n         "Verify with fingerprints": [\n            null,\n            "Verifica amb empremtes"\n         ],\n         "Verify with SMP": [\n            null,\n            "Verifica amb SMP"\n         ],\n         "What\'s this?": [\n            null,\n            "Què és això?"\n         ],\n         "unencrypted": [\n            null,\n            "sense xifrar"\n         ],\n         "unverified": [\n            null,\n            "sense verificar"\n         ],\n         "verified": [\n            null,\n            "verificat"\n         ],\n         "finished": [\n            null,\n            "acabat"\n         ],\n         " e.g. conversejs.org": [\n            null,\n            "p. ex. conversejs.org"\n         ],\n         "Your XMPP provider\'s domain name:": [\n            null,\n            "Nom de domini del vostre proveïdor XMPP:"\n         ],\n         "Fetch registration form": [\n            null,\n            "Obtingues un formulari de registre"\n         ],\n         "Tip: A list of public XMPP providers is available": [\n            null,\n            "Consell: hi ha disponible una llista de proveïdors XMPP públics"\n         ],\n         "here": [\n            null,\n            "aquí"\n         ],\n         "Register": [\n            null,\n            "Registre"\n         ],\n         "Sorry, the given provider does not support in band account registration. Please try with a different provider.": [\n            null,\n            "El proveïdor indicat no admet el registre del compte. Proveu-ho amb un altre proveïdor."\n         ],\n         "Requesting a registration form from the XMPP server": [\n            null,\n            "S\'està sol·licitant un formulari de registre del servidor XMPP"\n         ],\n         "Something went wrong while establishing a connection with \\"%1$s\\". Are you sure it exists?": [\n            null,\n            "Ha passat alguna cosa mentre s\'establia la connexió amb \\"%1$s\\". Segur que existeix?"\n         ],\n         "Now logging you in": [\n            null,\n            "S\'està iniciant la vostra sessió"\n         ],\n         "Registered successfully": [\n            null,\n            "Registre correcte"\n         ],\n         "Return": [\n            null,\n            "Torna"\n         ],\n         "The provider rejected your registration attempt. Please check the values you entered for correctness.": [\n            null,\n            "El proveïdor ha rebutjat l\'intent de registre. Comproveu que els valors que heu introduït siguin correctes."\n         ],\n         "Retry": [\n            null,\n            ""\n         ],\n         "This contact is busy": [\n            null,\n            "Aquest contacte està ocupat"\n         ],\n         "This contact is online": [\n            null,\n            "Aquest contacte està en línia"\n         ],\n         "This contact is offline": [\n            null,\n            "Aquest contacte està desconnectat"\n         ],\n         "This contact is unavailable": [\n            null,\n            "Aquest contacte no està disponible"\n         ],\n         "This contact is away for an extended period": [\n            null,\n            "Aquest contacte està absent durant un període prolongat"\n         ],\n         "This contact is away": [\n            null,\n            "Aquest contacte està absent"\n         ],\n         "Groups": [\n            null,\n            "Grups"\n         ],\n         "My contacts": [\n            null,\n            "Els meus contactes"\n         ],\n         "Pending contacts": [\n            null,\n            "Contactes pendents"\n         ],\n         "Contact requests": [\n            null,\n            "Sol·licituds de contacte"\n         ],\n         "Ungrouped": [\n            null,\n            "Sense agrupar"\n         ],\n         "Filter": [\n            null,\n            ""\n         ],\n         "State": [\n            null,\n            ""\n         ],\n         "Any": [\n            null,\n            ""\n         ],\n         "Chatty": [\n            null,\n            ""\n         ],\n         "Extended Away": [\n            null,\n            ""\n         ],\n         "Click to remove this contact": [\n            null,\n            "Feu clic per eliminar aquest contacte"\n         ],\n         "Click to accept this contact request": [\n            null,\n            "Feu clic per acceptar aquesta sol·licitud de contacte"\n         ],\n         "Click to decline this contact request": [\n            null,\n            "Feu clic per rebutjar aquesta sol·licitud de contacte"\n         ],\n         "Click to chat with this contact": [\n            null,\n            "Feu clic per conversar amb aquest contacte"\n         ],\n         "Name": [\n            null,\n            "Nom"\n         ],\n         "Are you sure you want to remove this contact?": [\n            null,\n            "Segur que voleu eliminar aquest contacte?"\n         ],\n         "Sorry, there was an error while trying to remove ": [\n            null,\n            "S\'ha produït un error en intentar eliminar "\n         ],\n         "Are you sure you want to decline this contact request?": [\n            null,\n            "Segur que voleu rebutjar aquesta sol·licitud de contacte?"\n         ]\n      }\n   }\n}';});


define('text!de',[],function () { return '{\n   "domain": "converse",\n   "locale_data": {\n      "converse": {\n         "": {\n            "domain": "converse",\n            "plural_forms": "nplurals=2; plural=n != 1;",\n            "lang": "de"\n         },\n         "Bookmark this room": [\n            null,\n            "Lesezeichen setzen"\n         ],\n         "The name for this bookmark:": [\n            null,\n            "Der Name für das Lesezeichen:"\n         ],\n         "Would you like this room to be automatically joined upon startup?": [\n            null,\n            ""\n         ],\n         "What should your nickname for this room be?": [\n            null,\n            ""\n         ],\n         "Save": [\n            null,\n            "Speichern"\n         ],\n         "Cancel": [\n            null,\n            "Abbrechen"\n         ],\n         "Sorry, something went wrong while trying to save your bookmark.": [\n            null,\n            "Etwas ging beim Versuch des Abspeicherns des Lesezeichens schief."\n         ],\n         "Click to toggle the bookmarks list": [\n            null,\n            "Zum Aus-/Einklappen klicken"\n         ],\n         "Bookmarked Rooms": [\n            null,\n            "Gemerkte Zimmer"\n         ],\n         "Are you sure you want to remove the bookmark \\"%1$s\\"?": [\n            null,\n            "Wollen Sie dieses Lesezeichen wirklich entfernen \\"%1$s\\"?"\n         ],\n         "Click to open this room": [\n            null,\n            "Hier klicken um diesen Raum zu öffnen"\n         ],\n         "Show more information on this room": [\n            null,\n            "Mehr Information über diesen Raum zeigen"\n         ],\n         "Remove this bookmark": [\n            null,\n            "Dieses Lesezeichen entfernen"\n         ],\n         "You have unread messages": [\n            null,\n            "Sie haben ungelesene Nachrichten"\n         ],\n         "Close this chat box": [\n            null,\n            "Das Chat-Fenster schließen"\n         ],\n         "Personal message": [\n            null,\n            "Persönliche Nachricht"\n         ],\n         "Send": [\n            null,\n            ""\n         ],\n         "me": [\n            null,\n            "Ich"\n         ],\n         "A very large message has been received.This might be due to an attack meant to degrade the chat performance.Output has been shortened.": [\n            null,\n            ""\n         ],\n         "Typing from another device": [\n            null,\n            ""\n         ],\n         "is typing": [\n            null,\n            "tippt"\n         ],\n         "Stopped typing on the other device": [\n            null,\n            ""\n         ],\n         "has stopped typing": [\n            null,\n            "tippt nicht mehr"\n         ],\n         "has gone away": [\n            null,\n            "ist jetzt abwesend"\n         ],\n         "Show this menu": [\n            null,\n            "Dieses Menü anzeigen"\n         ],\n         "Write in the third person": [\n            null,\n            "In der dritten Person schreiben"\n         ],\n         "Remove messages": [\n            null,\n            "Nachrichten entfernen"\n         ],\n         "Are you sure you want to clear the messages from this chat box?": [\n            null,\n            "Sind Sie sicher, dass Sie alle Nachrichten dieses Chats löschen möchten?"\n         ],\n         "has gone offline": [\n            null,\n            "ist offline gegangen"\n         ],\n         "is busy": [\n            null,\n            "ist beschäftigt"\n         ],\n         "Clear all messages": [\n            null,\n            "Alle Nachrichten löschen"\n         ],\n         "Insert a smiley": [\n            null,\n            ""\n         ],\n         "Start a call": [\n            null,\n            ""\n         ],\n         "Contacts": [\n            null,\n            "Kontakte"\n         ],\n         "XMPP Username:": [\n            null,\n            "XMPP Benutzername:"\n         ],\n         "Password:": [\n            null,\n            "Passwort:"\n         ],\n         "Click here to log in anonymously": [\n            null,\n            "Hier klicken um anonym anzumelden"\n         ],\n         "Log In": [\n            null,\n            "Anmelden"\n         ],\n         "Username": [\n            null,\n            "Benutzername"\n         ],\n         "user@server": [\n            null,\n            "Benutzer@Server"\n         ],\n         "password": [\n            null,\n            "passwort"\n         ],\n         "Sign in": [\n            null,\n            "Anmelden"\n         ],\n         "I am %1$s": [\n            null,\n            "Ich bin %1$s"\n         ],\n         "Click here to write a custom status message": [\n            null,\n            "Hier klicken um Statusnachricht zu ändern"\n         ],\n         "Click to change your chat status": [\n            null,\n            "Hier klicken um Status zu ändern"\n         ],\n         "Custom status": [\n            null,\n            "Statusnachricht"\n         ],\n         "online": [\n            null,\n            "online"\n         ],\n         "busy": [\n            null,\n            "beschäftigt"\n         ],\n         "away for long": [\n            null,\n            "länger abwesend"\n         ],\n         "away": [\n            null,\n            "abwesend"\n         ],\n         "offline": [\n            null,\n            "abgemeldet"\n         ],\n         "Online": [\n            null,\n            "Online"\n         ],\n         "Busy": [\n            null,\n            "Beschäftigt"\n         ],\n         "Away": [\n            null,\n            "Abwesend"\n         ],\n         "Offline": [\n            null,\n            "Abgemeldet"\n         ],\n         "Log out": [\n            null,\n            "Abmelden"\n         ],\n         "Contact name": [\n            null,\n            "Name des Kontakts"\n         ],\n         "Search": [\n            null,\n            "Suche"\n         ],\n         "e.g. user@example.org": [\n            null,\n            "z.B. benutzer@example.org"\n         ],\n         "Add": [\n            null,\n            "Hinzufügen"\n         ],\n         "Click to add new chat contacts": [\n            null,\n            "Hier klicken um neuen Kontakt hinzuzufügen"\n         ],\n         "Add a contact": [\n            null,\n            "Kontakt hinzufügen"\n         ],\n         "No users found": [\n            null,\n            "Keine Benutzer gefunden"\n         ],\n         "Click to add as a chat contact": [\n            null,\n            "Hier klicken um als Kontakt hinzuzufügen"\n         ],\n         "Toggle chat": [\n            null,\n            "Chat ein-/ausblenden"\n         ],\n         "Reconnecting": [\n            null,\n            "Verbindung wiederherstellen"\n         ],\n         "The connection has dropped, attempting to reconnect.": [\n            null,\n            ""\n         ],\n         "Connection error": [\n            null,\n            "Verbindungsfehler"\n         ],\n         "An error occurred while connecting to the chat server.": [\n            null,\n            "Beim Speichern des Formulars ist ein Fehler aufgetreten."\n         ],\n         "Connecting": [\n            null,\n            "Verbindungsaufbau"\n         ],\n         "Authenticating": [\n            null,\n            "Authentifizierung"\n         ],\n         "Authentication Failed": [\n            null,\n            "Authentifizierung gescheitert"\n         ],\n         "Connection failed": [\n            null,\n            "Verbindung fehlgeschlagen"\n         ],\n         "An error occurred while connecting to the chat server: ": [\n            null,\n            ""\n         ],\n         "Sorry, there was an error while trying to add ": [\n            null,\n            ""\n         ],\n         "This client does not allow presence subscriptions": [\n            null,\n            ""\n         ],\n         "Click to hide these contacts": [\n            null,\n            "Hier klicken um diese Kontakte zu verstecken"\n         ],\n         "Close this box": [\n            null,\n            "Schließen"\n         ],\n         "Minimize this chat box": [\n            null,\n            ""\n         ],\n         "Click to restore this chat": [\n            null,\n            "Hier klicken um diesen Chat wiederherzustellen"\n         ],\n         "Minimized": [\n            null,\n            "Minimiert"\n         ],\n         "This room is not anonymous": [\n            null,\n            "Dieser Raum ist nicht anonym"\n         ],\n         "This room now shows unavailable members": [\n            null,\n            "Dieser Raum zeigt jetzt nicht verfügbare Mitglieder an"\n         ],\n         "This room does not show unavailable members": [\n            null,\n            "Dieser Raum zeigt jetzt nicht verfügbare Mitglieder nicht an"\n         ],\n         "The room configuration has changed": [\n            null,\n            ""\n         ],\n         "Room logging is now enabled": [\n            null,\n            "Nachrichten in diesem Raum werden ab jetzt protokolliert"\n         ],\n         "Room logging is now disabled": [\n            null,\n            "Nachrichten in diesem Raum werden nicht mehr protokolliert"\n         ],\n         "This room is now no longer anonymous": [\n            null,\n            "Dieses Zimmer ist jetzt nicht anonym"\n         ],\n         "This room is now semi-anonymous": [\n            null,\n            "Dieser Raum ist jetzt teils anonym"\n         ],\n         "This room is now fully-anonymous": [\n            null,\n            "Dieser Raum ist jetzt anonym"\n         ],\n         "A new room has been created": [\n            null,\n            "Ein neuer Raum wurde erstellt"\n         ],\n         "You have been banned from this room": [\n            null,\n            "Sie sind aus diesem Raum verbannt worden"\n         ],\n         "You have been kicked from this room": [\n            null,\n            "Sie wurden aus diesem Raum hinausgeworfen"\n         ],\n         "You have been removed from this room because of an affiliation change": [\n            null,\n            "Sie wurden wegen einer Zugehörigkeitsänderung entfernt"\n         ],\n         "You have been removed from this room because the room has changed to members-only and you\'re not a member": [\n            null,\n            ""\n         ],\n         "You have been removed from this room because the MUC (Multi-user chat) service is being shut down.": [\n            null,\n            "Sie wurden aus diesem Raum entfernt, da der MUC (Multi-User Chat) Dienst gerade heruntergefahren wird."\n         ],\n         "%1$s has been banned": [\n            null,\n            "%1$s ist verbannt worden"\n         ],\n         "%1$s\'s nickname has changed": [\n            null,\n            "%1$s\'s Spitzname hat sich geändert"\n         ],\n         "%1$s has been kicked out": [\n            null,\n            "%1$s wurde hinausgeworfen"\n         ],\n         "%1$s has been removed because of an affiliation change": [\n            null,\n            "%1$s wurde wegen einer Zugehörigkeitsänderung entfernt"\n         ],\n         "%1$s has been removed for not being a member": [\n            null,\n            "%1$s ist kein Mitglied und wurde daher entfernt"\n         ],\n         "Your nickname has been automatically set to: %1$s": [\n            null,\n            "Ihr Spitzname wurde automatisiert geändert zu: %1$s"\n         ],\n         "Your nickname has been changed to: %1$s": [\n            null,\n            "Ihr Spitzname wurde geändert zu: %1$s"\n         ],\n         "Message": [\n            null,\n            "Nachricht"\n         ],\n         "Close and leave this room": [\n            null,\n            ""\n         ],\n         "Configure this room": [\n            null,\n            ""\n         ],\n         "Hide the list of occupants": [\n            null,\n            "Teilnehmerliste ausblenden"\n         ],\n         "Error: the \\"": [\n            null,\n            ""\n         ],\n         "Are you sure you want to clear the messages from this room?": [\n            null,\n            "Sind Sie sicher, dass Sie alle Nachrichten in diesem Raum löschen möchten?"\n         ],\n         "Error: could not execute the command": [\n            null,\n            "Fehler: Konnte den Befehl nicht ausführen"\n         ],\n         "Change user\'s affiliation to admin": [\n            null,\n            ""\n         ],\n         "Ban user from room": [\n            null,\n            "Verbanne einen Benutzer aus dem Raum"\n         ],\n         "Change user role to occupant": [\n            null,\n            "Benutzerrolle zu Teilnehmer ändern"\n         ],\n         "Kick user from room": [\n            null,\n            "Werfe einen Benutzer aus dem Raum"\n         ],\n         "Write in 3rd person": [\n            null,\n            "In der dritten Person schreiben"\n         ],\n         "Grant membership to a user": [\n            null,\n            ""\n         ],\n         "Remove user\'s ability to post messages": [\n            null,\n            ""\n         ],\n         "Change your nickname": [\n            null,\n            "Spitznamen ändern"\n         ],\n         "Grant moderator role to user": [\n            null,\n            ""\n         ],\n         "Grant ownership of this room": [\n            null,\n            "Besitzrechte an diesem Raum vergeben"\n         ],\n         "Revoke user\'s membership": [\n            null,\n            ""\n         ],\n         "Set room subject": [\n            null,\n            "Chatraum Thema festlegen"\n         ],\n         "Set room subject (alias for /subject)": [\n            null,\n            ""\n         ],\n         "Allow muted user to post messages": [\n            null,\n            ""\n         ],\n         "The nickname you chose is reserved or currently in use, please choose a different one.": [\n            null,\n            ""\n         ],\n         "Nickname": [\n            null,\n            "Spitzname"\n         ],\n         "This chatroom requires a password": [\n            null,\n            "Dieser Raum erfordert ein Passwort"\n         ],\n         "Password: ": [\n            null,\n            "Passwort: "\n         ],\n         "Submit": [\n            null,\n            "Abschicken"\n         ],\n         "The reason given is: \\"%1$s\\".": [\n            null,\n            "Die angegebene Begründung lautet: \\"%1$s\\"."\n         ],\n         "The reason given is: \\"": [\n            null,\n            "Die angegebene Begründung lautet: \\""\n         ],\n         " has left the room. \\"": [\n            null,\n            ""\n         ],\n         " has joined the room. \\"": [\n            null,\n            ""\n         ],\n         " has joined the room.": [\n            null,\n            ""\n         ],\n         "You are not on the member list of this room.": [\n            null,\n            "Sie sind nicht auf der Mitgliederliste dieses Raums."\n         ],\n         "You have been banned from this room.": [\n            null,\n            "Sie sind aus diesem Raum verbannt worden."\n         ],\n         "No nickname was specified.": [\n            null,\n            "Kein Spitzname festgelegt."\n         ],\n         "You are not allowed to create new rooms.": [\n            null,\n            "Es ist Ihnen nicht erlaubt neue Räume anzulegen."\n         ],\n         "This room does not (yet) exist.": [\n            null,\n            "Dieser Raum existiert (noch) nicht."\n         ],\n         "This room has reached its maximum number of occupants.": [\n            null,\n            "Dieser Raum hat die maximale Mitgliederanzahl erreicht"\n         ],\n         "Topic set by %1$s to: %2$s": [\n            null,\n            "%1$s hat das Thema zu \\"%2$s\\" geändert"\n         ],\n         "This user is a moderator.": [\n            null,\n            "Dieser Benutzer ist ein Moderator."\n         ],\n         "This user can send messages in this room.": [\n            null,\n            "Dieser Benutzer kann Nachrichten in diesem Raum verschicken."\n         ],\n         "This user can NOT send messages in this room.": [\n            null,\n            "Dieser Benutzer kann keine Nachrichten in diesem Raum verschicken."\n         ],\n         "Occupants": [\n            null,\n            "Teilnehmer"\n         ],\n         "Invite": [\n            null,\n            "Einladen"\n         ],\n         "Features": [\n            null,\n            "Funktionen"\n         ],\n         "Hidden": [\n            null,\n            "Versteckt"\n         ],\n         "Message archiving": [\n            null,\n            ""\n         ],\n         "Members only": [\n            null,\n            ""\n         ],\n         "Moderated": [\n            null,\n            "Moderiert"\n         ],\n         "Non-anonymous": [\n            null,\n            "Nicht anonym"\n         ],\n         "Persistent": [\n            null,\n            ""\n         ],\n         "Public": [\n            null,\n            "Öffentlich"\n         ],\n         "Semi-anonymous": [\n            null,\n            "Teils anonym"\n         ],\n         "Unmoderated": [\n            null,\n            "Unmoderiert"\n         ],\n         "Unsecured": [\n            null,\n            ""\n         ],\n         "Messages are archived on the server": [\n            null,\n            ""\n         ],\n         "All other room occupants can see your Jabber ID": [\n            null,\n            ""\n         ],\n         "This room persists even if it\'s unoccupied": [\n            null,\n            ""\n         ],\n         "Only moderators can see your Jabber ID": [\n            null,\n            ""\n         ],\n         "This room will disappear once the last person leaves": [\n            null,\n            ""\n         ],\n         "You are about to invite %1$s to the chat room \\"%2$s\\". ": [\n            null,\n            ""\n         ],\n         "You may optionally include a message, explaining the reason for the invitation.": [\n            null,\n            ""\n         ],\n         "Room name": [\n            null,\n            "Raumname"\n         ],\n         "Server": [\n            null,\n            "Server"\n         ],\n         "Join Room": [\n            null,\n            "Raum betreten"\n         ],\n         "Show rooms": [\n            null,\n            "Räume anzeigen"\n         ],\n         "Rooms": [\n            null,\n            "Räume"\n         ],\n         "No rooms on %1$s": [\n            null,\n            "Keine Räume auf %1$s"\n         ],\n         "Rooms on %1$s": [\n            null,\n            "Räume auf %1$s"\n         ],\n         "Description:": [\n            null,\n            "Beschreibung:"\n         ],\n         "Occupants:": [\n            null,\n            "Teilnehmer:"\n         ],\n         "Features:": [\n            null,\n            "Funktionen:"\n         ],\n         "Requires authentication": [\n            null,\n            "Authentifizierung erforderlich"\n         ],\n         "Requires an invitation": [\n            null,\n            "Einladung erforderlich"\n         ],\n         "Open room": [\n            null,\n            "Offener Raum"\n         ],\n         "Permanent room": [\n            null,\n            "Dauerhafter Raum"\n         ],\n         "Temporary room": [\n            null,\n            "Vorübergehender Raum"\n         ],\n         "%1$s has invited you to join a chat room: %2$s": [\n            null,\n            "%1$s hat Sie in den Raum \\"%2$s\\" eingeladen"\n         ],\n         "%1$s has invited you to join a chat room: %2$s, and left the following reason: \\"%3$s\\"": [\n            null,\n            "%1$s hat Sie in den Raum \\"%2$s\\" eingeladen. Begründung: \\"%3$s\\""\n         ],\n         "Notification from %1$s": [\n            null,\n            ""\n         ],\n         "%1$s says": [\n            null,\n            ""\n         ],\n         "wants to be your contact": [\n            null,\n            ""\n         ],\n         "Re-establishing encrypted session": [\n            null,\n            "Verschlüsselte Sitzung wiederherstellen"\n         ],\n         "Generating private key.": [\n            null,\n            "Generiere privaten Schlüssel."\n         ],\n         "Your browser might become unresponsive.": [\n            null,\n            "Ihr Browser könnte langsam reagieren."\n         ],\n         "Authentication request from %1$s\\n\\nYour chat contact is attempting to verify your identity, by asking you the question below.\\n\\n%2$s": [\n            null,\n            "Authentifizierungsanfrage von %1$s\\n\\nIhr Kontakt möchte durch die folgende Frage Ihre Identität verifizieren:\\n\\n%2$s"\n         ],\n         "Could not verify this user\'s identify.": [\n            null,\n            "Die Identität des Benutzers konnte nicht verifiziert werden."\n         ],\n         "Exchanging private key with contact.": [\n            null,\n            "Tausche private Schlüssel mit Kontakt aus."\n         ],\n         "Your messages are not encrypted anymore": [\n            null,\n            ""\n         ],\n         "Your messages are now encrypted but your contact\'s identity has not been verified.": [\n            null,\n            ""\n         ],\n         "Your contact\'s identify has been verified.": [\n            null,\n            ""\n         ],\n         "Your contact has ended encryption on their end, you should do the same.": [\n            null,\n            ""\n         ],\n         "Your message could not be sent": [\n            null,\n            "Ihre Nachricht konnte nicht gesendet werden"\n         ],\n         "We received an unencrypted message": [\n            null,\n            "Wir haben eine unverschlüsselte Nachricht empfangen"\n         ],\n         "We received an unreadable encrypted message": [\n            null,\n            "Wir haben eine unlesbare Nachricht empfangen"\n         ],\n         "Here are the fingerprints, please confirm them with %1$s, outside of this chat.\\n\\nFingerprint for you, %2$s: %3$s\\n\\nFingerprint for %1$s: %4$s\\n\\nIf you have confirmed that the fingerprints match, click OK, otherwise click Cancel.": [\n            null,\n            ""\n         ],\n         "You will be prompted to provide a security question and then an answer to that question.\\n\\nYour contact will then be prompted the same question and if they type the exact same answer (case sensitive), their identity will be verified.": [\n            null,\n            ""\n         ],\n         "What is your security question?": [\n            null,\n            ""\n         ],\n         "What is the answer to the security question?": [\n            null,\n            ""\n         ],\n         "Invalid authentication scheme provided": [\n            null,\n            ""\n         ],\n         "Your messages are not encrypted. Click here to enable OTR encryption.": [\n            null,\n            ""\n         ],\n         "Your messages are encrypted, but your contact has not been verified.": [\n            null,\n            ""\n         ],\n         "Your messages are encrypted and your contact verified.": [\n            null,\n            ""\n         ],\n         "Your contact has closed their end of the private session, you should do the same": [\n            null,\n            ""\n         ],\n         "End encrypted conversation": [\n            null,\n            ""\n         ],\n         "Refresh encrypted conversation": [\n            null,\n            ""\n         ],\n         "Start encrypted conversation": [\n            null,\n            ""\n         ],\n         "Verify with fingerprints": [\n            null,\n            ""\n         ],\n         "Verify with SMP": [\n            null,\n            ""\n         ],\n         "What\'s this?": [\n            null,\n            "Was ist das?"\n         ],\n         "unencrypted": [\n            null,\n            "unverschlüsselt"\n         ],\n         "unverified": [\n            null,\n            "nicht verifiziert"\n         ],\n         "verified": [\n            null,\n            "verifiziert"\n         ],\n         "finished": [\n            null,\n            "erledigt"\n         ],\n         " e.g. conversejs.org": [\n            null,\n            " z. B. conversejs.org"\n         ],\n         "Your XMPP provider\'s domain name:": [\n            null,\n            ""\n         ],\n         "Fetch registration form": [\n            null,\n            ""\n         ],\n         "Tip: A list of public XMPP providers is available": [\n            null,\n            ""\n         ],\n         "here": [\n            null,\n            ""\n         ],\n         "Register": [\n            null,\n            ""\n         ],\n         "Sorry, the given provider does not support in band account registration. Please try with a different provider.": [\n            null,\n            ""\n         ],\n         "Requesting a registration form from the XMPP server": [\n            null,\n            ""\n         ],\n         "Something went wrong while establishing a connection with \\"%1$s\\". Are you sure it exists?": [\n            null,\n            ""\n         ],\n         "Now logging you in": [\n            null,\n            ""\n         ],\n         "Registered successfully": [\n            null,\n            ""\n         ],\n         "Return": [\n            null,\n            "Zurück"\n         ],\n         "The provider rejected your registration attempt. Please check the values you entered for correctness.": [\n            null,\n            ""\n         ],\n         "Retry": [\n            null,\n            ""\n         ],\n         "This contact is busy": [\n            null,\n            "Dieser Kontakt ist beschäftigt"\n         ],\n         "This contact is online": [\n            null,\n            "Dieser Kontakt ist online"\n         ],\n         "This contact is offline": [\n            null,\n            "Dieser Kontakt ist offline"\n         ],\n         "This contact is unavailable": [\n            null,\n            "Dieser Kontakt ist nicht verfügbar"\n         ],\n         "This contact is away for an extended period": [\n            null,\n            "Dieser Kontakt ist für längere Zeit abwesend"\n         ],\n         "This contact is away": [\n            null,\n            "Dieser Kontakt ist abwesend"\n         ],\n         "Groups": [\n            null,\n            "Gruppen"\n         ],\n         "My contacts": [\n            null,\n            "Meine Kontakte"\n         ],\n         "Pending contacts": [\n            null,\n            "Unbestätigte Kontakte"\n         ],\n         "Contact requests": [\n            null,\n            "Kontaktanfragen"\n         ],\n         "Ungrouped": [\n            null,\n            "Ungruppiert"\n         ],\n         "Filter": [\n            null,\n            ""\n         ],\n         "State": [\n            null,\n            ""\n         ],\n         "Any": [\n            null,\n            ""\n         ],\n         "Chatty": [\n            null,\n            ""\n         ],\n         "Extended Away": [\n            null,\n            ""\n         ],\n         "Click to remove this contact": [\n            null,\n            "Hier klicken um diesen Kontakt zu entfernen"\n         ],\n         "Click to accept this contact request": [\n            null,\n            "Hier klicken um diese Kontaktanfrage zu akzeptieren"\n         ],\n         "Click to decline this contact request": [\n            null,\n            "Hier klicken um diese Kontaktanfrage zu abzulehnen"\n         ],\n         "Click to chat with this contact": [\n            null,\n            "Hier klicken um mit diesem Kontakt zu chatten"\n         ],\n         "Name": [\n            null,\n            ""\n         ],\n         "Are you sure you want to remove this contact?": [\n            null,\n            "Wollen Sie diesen Kontakt wirklich entfernen?"\n         ],\n         "Sorry, there was an error while trying to remove ": [\n            null,\n            ""\n         ],\n         "Are you sure you want to decline this contact request?": [\n            null,\n            "Wollen Sie diese Kontaktanfrage wirklich ablehnen?"\n         ]\n      }\n   }\n}';});


define('text!es',[],function () { return '{\n   "domain": "converse",\n   "locale_data": {\n      "converse": {\n         "": {\n            "domain": "converse",\n            "plural_forms": "nplurals=2; plural=(n != 1);",\n            "lang": "es"\n         },\n         "Bookmark this room": [\n            null,\n            ""\n         ],\n         "The name for this bookmark:": [\n            null,\n            ""\n         ],\n         "Would you like this room to be automatically joined upon startup?": [\n            null,\n            ""\n         ],\n         "What should your nickname for this room be?": [\n            null,\n            ""\n         ],\n         "Save": [\n            null,\n            "Guardar"\n         ],\n         "Cancel": [\n            null,\n            "Cancelar"\n         ],\n         "Sorry, something went wrong while trying to save your bookmark.": [\n            null,\n            ""\n         ],\n         "Bookmarked Rooms": [\n            null,\n            ""\n         ],\n         "Click to open this room": [\n            null,\n            "Haga click para abrir esta sala"\n         ],\n         "Show more information on this room": [\n            null,\n            "Mostrar más información en esta sala"\n         ],\n         "Remove this bookmark": [\n            null,\n            ""\n         ],\n         "Personal message": [\n            null,\n            "Mensaje personal"\n         ],\n         "Send": [\n            null,\n            ""\n         ],\n         "me": [\n            null,\n            "yo"\n         ],\n         "A very large message has been received.This might be due to an attack meant to degrade the chat performance.Output has been shortened.": [\n            null,\n            ""\n         ],\n         "Typing from another device": [\n            null,\n            ""\n         ],\n         "is typing": [\n            null,\n            ""\n         ],\n         "Stopped typing on the other device": [\n            null,\n            ""\n         ],\n         "has stopped typing": [\n            null,\n            ""\n         ],\n         "Show this menu": [\n            null,\n            "Mostrar este menú"\n         ],\n         "Write in the third person": [\n            null,\n            "Escribir en tercera persona"\n         ],\n         "Remove messages": [\n            null,\n            "Eliminar mensajes"\n         ],\n         "Are you sure you want to clear the messages from this chat box?": [\n            null,\n            "¿Está seguro de querer limpiar los mensajes de esta conversación?"\n         ],\n         "Insert a smiley": [\n            null,\n            ""\n         ],\n         "Start a call": [\n            null,\n            ""\n         ],\n         "Contacts": [\n            null,\n            "Contactos"\n         ],\n         "Password:": [\n            null,\n            "Contraseña:"\n         ],\n         "Log In": [\n            null,\n            "Iniciar sesión"\n         ],\n         "user@server": [\n            null,\n            ""\n         ],\n         "Sign in": [\n            null,\n            "Registrar"\n         ],\n         "I am %1$s": [\n            null,\n            "Estoy %1$s"\n         ],\n         "Click here to write a custom status message": [\n            null,\n            "Haga click para escribir un mensaje de estatus personalizado"\n         ],\n         "Click to change your chat status": [\n            null,\n            "Haga click para cambiar su estatus de chat"\n         ],\n         "Custom status": [\n            null,\n            "Personalizar estatus"\n         ],\n         "online": [\n            null,\n            "en línea"\n         ],\n         "busy": [\n            null,\n            "ocupado"\n         ],\n         "away for long": [\n            null,\n            "ausente por mucho tiempo"\n         ],\n         "away": [\n            null,\n            "ausente"\n         ],\n         "Online": [\n            null,\n            "En línea"\n         ],\n         "Busy": [\n            null,\n            "Ocupado"\n         ],\n         "Away": [\n            null,\n            "Ausente"\n         ],\n         "Offline": [\n            null,\n            "Desconectado"\n         ],\n         "Contact name": [\n            null,\n            "Nombre de contacto"\n         ],\n         "Search": [\n            null,\n            "Búsqueda"\n         ],\n         "e.g. user@example.org": [\n            null,\n            ""\n         ],\n         "Add": [\n            null,\n            "Agregar"\n         ],\n         "Click to add new chat contacts": [\n            null,\n            "Haga click para agregar nuevos contactos al chat"\n         ],\n         "Add a contact": [\n            null,\n            "Agregar un contacto"\n         ],\n         "No users found": [\n            null,\n            "Sin usuarios encontrados"\n         ],\n         "Click to add as a chat contact": [\n            null,\n            "Haga click para agregar como contacto de chat"\n         ],\n         "Toggle chat": [\n            null,\n            "Chat"\n         ],\n         "Reconnecting": [\n            null,\n            "Reconectando"\n         ],\n         "The connection has dropped, attempting to reconnect.": [\n            null,\n            ""\n         ],\n         "Connecting": [\n            null,\n            "Conectando"\n         ],\n         "Authenticating": [\n            null,\n            "Autenticando"\n         ],\n         "Authentication Failed": [\n            null,\n            "La autenticación falló"\n         ],\n         "Sorry, there was an error while trying to add ": [\n            null,\n            ""\n         ],\n         "This client does not allow presence subscriptions": [\n            null,\n            ""\n         ],\n         "Minimize this chat box": [\n            null,\n            ""\n         ],\n         "Click to restore this chat": [\n            null,\n            "Haga click para eliminar este contacto"\n         ],\n         "Minimized": [\n            null,\n            "Minimizado"\n         ],\n         "This room is not anonymous": [\n            null,\n            "Esta sala no es para usuarios anónimos"\n         ],\n         "This room now shows unavailable members": [\n            null,\n            "Esta sala ahora muestra los miembros no disponibles"\n         ],\n         "This room does not show unavailable members": [\n            null,\n            "Esta sala no muestra los miembros no disponibles"\n         ],\n         "Room logging is now enabled": [\n            null,\n            "El registro de la sala ahora está habilitado"\n         ],\n         "Room logging is now disabled": [\n            null,\n            "El registro de la sala ahora está deshabilitado"\n         ],\n         "This room is now semi-anonymous": [\n            null,\n            "Esta sala ahora es semi-anónima"\n         ],\n         "This room is now fully-anonymous": [\n            null,\n            "Esta sala ahora es completamente anónima"\n         ],\n         "A new room has been created": [\n            null,\n            "Una nueva sala ha sido creada"\n         ],\n         "You have been banned from this room": [\n            null,\n            "Usted ha sido bloqueado de esta sala"\n         ],\n         "You have been kicked from this room": [\n            null,\n            "Usted ha sido expulsado de esta sala"\n         ],\n         "You have been removed from this room because of an affiliation change": [\n            null,\n            "Usted ha sido eliminado de esta sala debido a un cambio de afiliación"\n         ],\n         "You have been removed from this room because the room has changed to members-only and you\'re not a member": [\n            null,\n            "Usted ha sido eliminado de esta sala debido a que la sala cambio su configuración a solo-miembros y usted no es un miembro"\n         ],\n         "You have been removed from this room because the MUC (Multi-user chat) service is being shut down.": [\n            null,\n            "Usted ha sido eliminado de esta sala debido a que el servicio MUC (Multi-user chat) está deshabilitado."\n         ],\n         "Message": [\n            null,\n            "Mensaje"\n         ],\n         "Hide the list of occupants": [\n            null,\n            ""\n         ],\n         "Error: the \\"": [\n            null,\n            ""\n         ],\n         "Are you sure you want to clear the messages from this room?": [\n            null,\n            "¿Está seguro de querer limpiar los mensajes de esta sala?"\n         ],\n         "Error: could not execute the command": [\n            null,\n            ""\n         ],\n         "Change user\'s affiliation to admin": [\n            null,\n            ""\n         ],\n         "Change user role to occupant": [\n            null,\n            ""\n         ],\n         "Grant membership to a user": [\n            null,\n            ""\n         ],\n         "Remove user\'s ability to post messages": [\n            null,\n            ""\n         ],\n         "Change your nickname": [\n            null,\n            ""\n         ],\n         "Grant moderator role to user": [\n            null,\n            ""\n         ],\n         "Revoke user\'s membership": [\n            null,\n            ""\n         ],\n         "Set room subject (alias for /subject)": [\n            null,\n            ""\n         ],\n         "Allow muted user to post messages": [\n            null,\n            ""\n         ],\n         "The nickname you chose is reserved or currently in use, please choose a different one.": [\n            null,\n            ""\n         ],\n         "Please choose your nickname": [\n            null,\n            ""\n         ],\n         "Nickname": [\n            null,\n            "Apodo"\n         ],\n         "This chatroom requires a password": [\n            null,\n            "Esta sala de chat requiere una contraseña."\n         ],\n         "Password: ": [\n            null,\n            "Contraseña: "\n         ],\n         "Submit": [\n            null,\n            "Enviar"\n         ],\n         "The reason given is: \\"%1$s\\".": [\n            null,\n            ""\n         ],\n         "The reason given is: \\"": [\n            null,\n            ""\n         ],\n         " has left the room. \\"": [\n            null,\n            ""\n         ],\n         " has joined the room. \\"": [\n            null,\n            ""\n         ],\n         " has joined the room.": [\n            null,\n            ""\n         ],\n         "Topic set by %1$s to: %2$s": [\n            null,\n            "Tema fijado por %1$s a: %2$s"\n         ],\n         "Occupants": [\n            null,\n            "Ocupantes"\n         ],\n         "Invite": [\n            null,\n            ""\n         ],\n         "Hidden": [\n            null,\n            "Oculto"\n         ],\n         "Message archiving": [\n            null,\n            ""\n         ],\n         "Members only": [\n            null,\n            ""\n         ],\n         "Moderated": [\n            null,\n            "Moderado"\n         ],\n         "Non-anonymous": [\n            null,\n            "No anónimo"\n         ],\n         "Persistent": [\n            null,\n            ""\n         ],\n         "Public": [\n            null,\n            "Pública"\n         ],\n         "Semi-anonymous": [\n            null,\n            "Semi anónimo"\n         ],\n         "Unmoderated": [\n            null,\n            "Sin moderar"\n         ],\n         "Unsecured": [\n            null,\n            ""\n         ],\n         "Messages are archived on the server": [\n            null,\n            ""\n         ],\n         "All other room occupants can see your Jabber ID": [\n            null,\n            ""\n         ],\n         "This room persists even if it\'s unoccupied": [\n            null,\n            ""\n         ],\n         "Only moderators can see your Jabber ID": [\n            null,\n            ""\n         ],\n         "This room will disappear once the last person leaves": [\n            null,\n            ""\n         ],\n         "You are about to invite %1$s to the chat room \\"%2$s\\". ": [\n            null,\n            ""\n         ],\n         "You may optionally include a message, explaining the reason for the invitation.": [\n            null,\n            ""\n         ],\n         "Room name": [\n            null,\n            "Nombre de sala"\n         ],\n         "Server": [\n            null,\n            "Servidor"\n         ],\n         "Show rooms": [\n            null,\n            "Mostrar salas"\n         ],\n         "Rooms": [\n            null,\n            "Salas"\n         ],\n         "No rooms on %1$s": [\n            null,\n            "Sin salas en %1$s"\n         ],\n         "Rooms on %1$s": [\n            null,\n            "Salas en %1$s"\n         ],\n         "Description:": [\n            null,\n            "Descripción"\n         ],\n         "Occupants:": [\n            null,\n            "Ocupantes:"\n         ],\n         "Features:": [\n            null,\n            "Características:"\n         ],\n         "Requires authentication": [\n            null,\n            "Autenticación requerida"\n         ],\n         "Requires an invitation": [\n            null,\n            "Requiere una invitación"\n         ],\n         "Open room": [\n            null,\n            "Abrir sala"\n         ],\n         "Permanent room": [\n            null,\n            "Sala permanente"\n         ],\n         "Temporary room": [\n            null,\n            "Sala temporal"\n         ],\n         "%1$s has invited you to join a chat room: %2$s": [\n            null,\n            ""\n         ],\n         "%1$s has invited you to join a chat room: %2$s, and left the following reason: \\"%3$s\\"": [\n            null,\n            ""\n         ],\n         "Notification from %1$s": [\n            null,\n            ""\n         ],\n         "%1$s says": [\n            null,\n            ""\n         ],\n         "wants to be your contact": [\n            null,\n            ""\n         ],\n         "Re-establishing encrypted session": [\n            null,\n            "Re-estableciendo sesión cifrada"\n         ],\n         "Generating private key.": [\n            null,\n            "Generando llave privada"\n         ],\n         "Your browser might become unresponsive.": [\n            null,\n            "Su navegador podría dejar de responder por un momento"\n         ],\n         "Could not verify this user\'s identify.": [\n            null,\n            "No se pudo verificar la identidad de este usuario"\n         ],\n         "Your messages are not encrypted anymore": [\n            null,\n            "Sus mensajes han dejado de cifrarse"\n         ],\n         "Your message could not be sent": [\n            null,\n            "Su mensaje no se pudo enviar"\n         ],\n         "We received an unencrypted message": [\n            null,\n            "Se recibío un mensaje sin cifrar"\n         ],\n         "We received an unreadable encrypted message": [\n            null,\n            "Se recibío un mensaje cifrado corrupto"\n         ],\n         "Here are the fingerprints, please confirm them with %1$s, outside of this chat.\\n\\nFingerprint for you, %2$s: %3$s\\n\\nFingerprint for %1$s: %4$s\\n\\nIf you have confirmed that the fingerprints match, click OK, otherwise click Cancel.": [\n            null,\n            "Por favor confirme los identificadores de %1$s fuera de este chat.\\n\\nSu identificador es, %2$s: %3$s\\n\\nEl identificador de %1$s es: %4$s\\n\\nDespués de confirmar los identificadores haga click en OK, cancele si no concuerdan."\n         ],\n         "What is your security question?": [\n            null,\n            "Introduzca su pregunta de seguridad"\n         ],\n         "What is the answer to the security question?": [\n            null,\n            "Introduzca la respuesta a su pregunta de seguridad"\n         ],\n         "Invalid authentication scheme provided": [\n            null,\n            "Esquema de autenticación inválido"\n         ],\n         "Your messages are not encrypted. Click here to enable OTR encryption.": [\n            null,\n            "Sus mensajes no están cifrados. Haga click aquí para habilitar el cifrado OTR"\n         ],\n         "End encrypted conversation": [\n            null,\n            "Finalizar sesión cifrada"\n         ],\n         "Refresh encrypted conversation": [\n            null,\n            "Actualizar sesión cifrada"\n         ],\n         "Start encrypted conversation": [\n            null,\n            "Iniciar sesión cifrada"\n         ],\n         "Verify with fingerprints": [\n            null,\n            "Verificar con identificadores"\n         ],\n         "Verify with SMP": [\n            null,\n            "Verificar con SMP"\n         ],\n         "What\'s this?": [\n            null,\n            "¿Qué es esto?"\n         ],\n         "unencrypted": [\n            null,\n            "texto plano"\n         ],\n         "unverified": [\n            null,\n            "sin verificar"\n         ],\n         "verified": [\n            null,\n            "verificado"\n         ],\n         "finished": [\n            null,\n            "finalizado"\n         ],\n         " e.g. conversejs.org": [\n            null,\n            ""\n         ],\n         "Your XMPP provider\'s domain name:": [\n            null,\n            ""\n         ],\n         "Fetch registration form": [\n            null,\n            ""\n         ],\n         "Tip: A list of public XMPP providers is available": [\n            null,\n            ""\n         ],\n         "here": [\n            null,\n            ""\n         ],\n         "Register": [\n            null,\n            ""\n         ],\n         "Sorry, the given provider does not support in band account registration. Please try with a different provider.": [\n            null,\n            ""\n         ],\n         "Requesting a registration form from the XMPP server": [\n            null,\n            ""\n         ],\n         "Something went wrong while establishing a connection with \\"%1$s\\". Are you sure it exists?": [\n            null,\n            ""\n         ],\n         "Now logging you in": [\n            null,\n            ""\n         ],\n         "Registered successfully": [\n            null,\n            ""\n         ],\n         "Return": [\n            null,\n            ""\n         ],\n         "The provider rejected your registration attempt. Please check the values you entered for correctness.": [\n            null,\n            ""\n         ],\n         "Retry": [\n            null,\n            ""\n         ],\n         "This contact is busy": [\n            null,\n            "Este contacto está ocupado"\n         ],\n         "This contact is online": [\n            null,\n            "Este contacto está en línea"\n         ],\n         "This contact is offline": [\n            null,\n            "Este contacto está desconectado"\n         ],\n         "This contact is unavailable": [\n            null,\n            "Este contacto no está disponible"\n         ],\n         "This contact is away for an extended period": [\n            null,\n            "Este contacto está ausente por un largo periodo de tiempo"\n         ],\n         "This contact is away": [\n            null,\n            "Este contacto está ausente"\n         ],\n         "Groups": [\n            null,\n            ""\n         ],\n         "My contacts": [\n            null,\n            "Mis contactos"\n         ],\n         "Pending contacts": [\n            null,\n            "Contactos pendientes"\n         ],\n         "Contact requests": [\n            null,\n            "Solicitudes de contacto"\n         ],\n         "Ungrouped": [\n            null,\n            ""\n         ],\n         "Filter": [\n            null,\n            ""\n         ],\n         "State": [\n            null,\n            ""\n         ],\n         "Any": [\n            null,\n            ""\n         ],\n         "Chatty": [\n            null,\n            ""\n         ],\n         "Extended Away": [\n            null,\n            ""\n         ],\n         "Click to remove this contact": [\n            null,\n            "Haga click para eliminar este contacto"\n         ],\n         "Click to chat with this contact": [\n            null,\n            "Haga click para conversar con este contacto"\n         ],\n         "Name": [\n            null,\n            ""\n         ],\n         "Are you sure you want to remove this contact?": [\n            null,\n            "¿Esta seguro de querer eliminar este contacto?"\n         ],\n         "Sorry, there was an error while trying to remove ": [\n            null,\n            ""\n         ]\n      }\n   }\n}';});


define('text!fr',[],function () { return '{\n   "domain": "converse",\n   "locale_data": {\n      "converse": {\n         "": {\n            "domain": "converse",\n            "plural_forms": "nplurals=2; plural=n > 1;",\n            "lang": "fr"\n         },\n         "Bookmark this room": [\n            null,\n            "Marquer ce salon"\n         ],\n         "The name for this bookmark:": [\n            null,\n            "Nom de ce marque-page :"\n         ],\n         "Would you like this room to be automatically joined upon startup?": [\n            null,\n            "Voulez-vous rejoindre automatiquement ce salon au lancement ?"\n         ],\n         "What should your nickname for this room be?": [\n            null,\n            "Quel alias devrait être utilisé pour ce salon ?"\n         ],\n         "Save": [\n            null,\n            "Enregistrer"\n         ],\n         "Cancel": [\n            null,\n            "Annuler"\n         ],\n         "Sorry, something went wrong while trying to save your bookmark.": [\n            null,\n            "Désolé, quelque chose s’est mal passé pendant la sauvegarde de ce marque-page."\n         ],\n         "Click to toggle the bookmarks list": [\n            null,\n            "Cliquer pour ouvrir la liste des salons"\n         ],\n         "Bookmarked Rooms": [\n            null,\n            "Salons en marques-page"\n         ],\n         "Are you sure you want to remove the bookmark \\"%1$s\\"?": [\n            null,\n            "Voulez-vous vraiment supprimer ce marque-page ?"\n         ],\n         "Click to open this room": [\n            null,\n            "Cliquer pour ouvrir ce salon"\n         ],\n         "Show more information on this room": [\n            null,\n            "Afficher davantage d’informations sur ce salon"\n         ],\n         "Remove this bookmark": [\n            null,\n            "Supprimer ce marque-page"\n         ],\n         "You have unread messages": [\n            null,\n            "Vous avez de nouveaux messages"\n         ],\n         "Close this chat box": [\n            null,\n            "Fermer cette fenêtre de discussion"\n         ],\n         "Personal message": [\n            null,\n            "Message personnel"\n         ],\n         "Send": [\n            null,\n            ""\n         ],\n         "me": [\n            null,\n            "moi"\n         ],\n         "A very large message has been received.This might be due to an attack meant to degrade the chat performance.Output has been shortened.": [\n            null,\n            "Un message très long a été reçu. Cela pourrait être lié à une attaque visant à dégrader la performance de la conversation. La sortie a été tronquée."\n         ],\n         "Typing from another device": [\n            null,\n            ""\n         ],\n         "is typing": [\n            null,\n            "écrit"\n         ],\n         "Stopped typing on the other device": [\n            null,\n            ""\n         ],\n         "has stopped typing": [\n            null,\n            "a arrêté d’écrire"\n         ],\n         "has gone away": [\n            null,\n            "est parti"\n         ],\n         "Show this menu": [\n            null,\n            "Afficher ce menu"\n         ],\n         "Write in the third person": [\n            null,\n            "Écrire à la troisième personne"\n         ],\n         "Remove messages": [\n            null,\n            "Effacer les messages"\n         ],\n         "Are you sure you want to clear the messages from this chat box?": [\n            null,\n            "Voulez-vous vraiment supprimer les messages de cette conversation ?"\n         ],\n         "has gone offline": [\n            null,\n            "s’est déconnecté"\n         ],\n         "is busy": [\n            null,\n            "est occupé"\n         ],\n         "Clear all messages": [\n            null,\n            "Supprimer tous les messages"\n         ],\n         "Insert a smiley": [\n            null,\n            "Insérer une émoticône"\n         ],\n         "Start a call": [\n            null,\n            "Démarrer un appel"\n         ],\n         "Contacts": [\n            null,\n            "Contacts"\n         ],\n         "XMPP Username:": [\n            null,\n            "Nom d’utilisateur XMPP :"\n         ],\n         "Password:": [\n            null,\n            "Mot de passe :"\n         ],\n         "Click here to log in anonymously": [\n            null,\n            "Cliquez ici pour se connecter anonymement"\n         ],\n         "Log In": [\n            null,\n            "Se connecter"\n         ],\n         "Username": [\n            null,\n            "Nom"\n         ],\n         "user@server": [\n            null,\n            "utilisateur@serveur"\n         ],\n         "password": [\n            null,\n            "Mot de passe"\n         ],\n         "Sign in": [\n            null,\n            "S’inscrire"\n         ],\n         "I am %1$s": [\n            null,\n            "Je suis %1$s"\n         ],\n         "Click here to write a custom status message": [\n            null,\n            "Cliquez ici pour indiquer votre statut personnel"\n         ],\n         "Click to change your chat status": [\n            null,\n            "Cliquez pour changer votre statut"\n         ],\n         "Custom status": [\n            null,\n            "Statut personnel"\n         ],\n         "online": [\n            null,\n            "en ligne"\n         ],\n         "busy": [\n            null,\n            "occupé"\n         ],\n         "away for long": [\n            null,\n            "absent pour une longue durée"\n         ],\n         "away": [\n            null,\n            "absent"\n         ],\n         "offline": [\n            null,\n            "Déconnecté"\n         ],\n         "Online": [\n            null,\n            "En ligne"\n         ],\n         "Busy": [\n            null,\n            "Occupé"\n         ],\n         "Away": [\n            null,\n            "Absent"\n         ],\n         "Offline": [\n            null,\n            "Déconnecté"\n         ],\n         "Log out": [\n            null,\n            "Se déconnecter"\n         ],\n         "Contact name": [\n            null,\n            "Nom du contact"\n         ],\n         "Search": [\n            null,\n            "Rechercher"\n         ],\n         "e.g. user@example.org": [\n            null,\n            "e.g. utilisateur@exemple.org"\n         ],\n         "Add": [\n            null,\n            "Ajouter"\n         ],\n         "Click to add new chat contacts": [\n            null,\n            "Cliquez pour ajouter de nouveaux contacts"\n         ],\n         "Add a contact": [\n            null,\n            "Ajouter un contact"\n         ],\n         "No users found": [\n            null,\n            "Aucun utilisateur trouvé"\n         ],\n         "Click to add as a chat contact": [\n            null,\n            "Cliquer pour ajouter aux contacts"\n         ],\n         "Toggle chat": [\n            null,\n            "Ouvrir IM"\n         ],\n         "Reconnecting": [\n            null,\n            "Reconnexion"\n         ],\n         "The connection has dropped, attempting to reconnect.": [\n            null,\n            "La connexion a été perdue, tentative de reconnexion en cours."\n         ],\n         "Connection error": [\n            null,\n            "Erreur de connexion"\n         ],\n         "An error occurred while connecting to the chat server.": [\n            null,\n            "Une erreur est survenue lors de la connexion au serveur de discussion."\n         ],\n         "Connecting": [\n            null,\n            "Connexion"\n         ],\n         "Authenticating": [\n            null,\n            "Authentification"\n         ],\n         "Authentication Failed": [\n            null,\n            "L’authentification a échoué"\n         ],\n         "Connection failed": [\n            null,\n            "La connexion a échoué"\n         ],\n         "An error occurred while connecting to the chat server: ": [\n            null,\n            "Une erreur est survenue lors de la connexion au serveur de discussion : "\n         ],\n         "Sorry, there was an error while trying to add ": [\n            null,\n            "Désolé, il y a eu une erreur lors de la tentative d’ajout "\n         ],\n         "This client does not allow presence subscriptions": [\n            null,\n            "Ce client ne permet pas les mises à jour de disponibilité"\n         ],\n         "Click to hide these contacts": [\n            null,\n            "Cliquez pour cacher ces contacts"\n         ],\n         "Close this box": [\n            null,\n            "Fermer cette fenêtre"\n         ],\n         "Minimize this chat box": [\n            null,\n            "Réduire cette fenêtre de discussion"\n         ],\n         "Click to restore this chat": [\n            null,\n            "Cliquez pour afficher cette discussion"\n         ],\n         "Minimized": [\n            null,\n            "Réduit(s)"\n         ],\n         "This room is not anonymous": [\n            null,\n            "Ce salon n’est pas anonyme"\n         ],\n         "This room now shows unavailable members": [\n            null,\n            "Ce salon affiche maintenant les membres indisponibles"\n         ],\n         "This room does not show unavailable members": [\n            null,\n            "Ce salon n’affiche pas les membres indisponibles"\n         ],\n         "The room configuration has changed": [\n            null,\n            "Les paramètres de ce salon ont été modifiés"\n         ],\n         "Room logging is now enabled": [\n            null,\n            "Le logging du salon est activé"\n         ],\n         "Room logging is now disabled": [\n            null,\n            "Le logging du salon est désactivé"\n         ],\n         "This room is now no longer anonymous": [\n            null,\n            "Ce salon n’est plus anonyme"\n         ],\n         "This room is now semi-anonymous": [\n            null,\n            "Ce salon est maintenant semi-anonyme"\n         ],\n         "This room is now fully-anonymous": [\n            null,\n            "Ce salon est maintenant entièrement anonyme"\n         ],\n         "A new room has been created": [\n            null,\n            "Un nouveau salon a été créé"\n         ],\n         "You have been banned from this room": [\n            null,\n            "Vous avez été banni de ce salon"\n         ],\n         "You have been kicked from this room": [\n            null,\n            "Vous avez été expulsé de ce salon"\n         ],\n         "You have been removed from this room because of an affiliation change": [\n            null,\n            "Vous avez été retiré de ce salon du fait d’un changement d’affiliation"\n         ],\n         "You have been removed from this room because the room has changed to members-only and you\'re not a member": [\n            null,\n            "Vous avez été retiré de ce salon parce que ce salon est devenu réservé aux membres et vous n’êtes pas membre"\n         ],\n         "You have been removed from this room because the MUC (Multi-user chat) service is being shut down.": [\n            null,\n            "Vous avez été retiré de ce salon parce que le service de chat multi-utilisateur a été désactivé."\n         ],\n         "%1$s has been banned": [\n            null,\n            "%1$s a été banni"\n         ],\n         "%1$s\'s nickname has changed": [\n            null,\n            "L’alias de %1$s a changé"\n         ],\n         "%1$s has been kicked out": [\n            null,\n            "%1$s a été expulsé"\n         ],\n         "%1$s has been removed because of an affiliation change": [\n            null,\n            "%1$s a été supprimé à cause d’un changement d’affiliation"\n         ],\n         "%1$s has been removed for not being a member": [\n            null,\n            "%1$s a été supprimé car il n’est pas membre"\n         ],\n         "Your nickname has been automatically set to: %1$s": [\n            null,\n            "Votre alias a été automatiquement déterminé en : %1$s"\n         ],\n         "Your nickname has been changed to: %1$s": [\n            null,\n            "Votre alias a été modifié en : %1$s"\n         ],\n         "Message": [\n            null,\n            "Message"\n         ],\n         "Close and leave this room": [\n            null,\n            "Fermer et quitter ce salon"\n         ],\n         "Configure this room": [\n            null,\n            "Configurer ce salon"\n         ],\n         "Hide the list of occupants": [\n            null,\n            "Cacher la liste des participants"\n         ],\n         "Error: the \\"": [\n            null,\n            "Erreur : \\""\n         ],\n         "Are you sure you want to clear the messages from this room?": [\n            null,\n            "Voulez-vous vraiment supprimer les messages de ce salon ?"\n         ],\n         "Error: could not execute the command": [\n            null,\n            "Erreur : la commande ne peut pas être exécutée"\n         ],\n         "Change user\'s affiliation to admin": [\n            null,\n            "Changer le rôle  de l’utilisateur en administrateur"\n         ],\n         "Ban user from room": [\n            null,\n            "Bannir l’utilisateur du salon"\n         ],\n         "Change user role to occupant": [\n            null,\n            "Changer le rôle de l’utilisateur en participant"\n         ],\n         "Kick user from room": [\n            null,\n            "Expulser l’utilisateur du salon"\n         ],\n         "Write in 3rd person": [\n            null,\n            "Écrire à la troisième personne"\n         ],\n         "Grant membership to a user": [\n            null,\n            "Autoriser l’utilisateur à être membre"\n         ],\n         "Remove user\'s ability to post messages": [\n            null,\n            "Retirer le droit d’envoyer des messages"\n         ],\n         "Change your nickname": [\n            null,\n            "Changer votre alias"\n         ],\n         "Grant moderator role to user": [\n            null,\n            "Changer le rôle de l’utilisateur en modérateur"\n         ],\n         "Grant ownership of this room": [\n            null,\n            "Accorder la propriété à ce salon"\n         ],\n         "Revoke user\'s membership": [\n            null,\n            "Révoquer l’utilisateur des membres"\n         ],\n         "Set room subject": [\n            null,\n            "Indiquer le sujet du salon"\n         ],\n         "Set room subject (alias for /subject)": [\n            null,\n            "Définir le sujet de la salle (alias pour /subject)"\n         ],\n         "Allow muted user to post messages": [\n            null,\n            "Autoriser les utilisateurs muets à poster des messages"\n         ],\n         "The nickname you chose is reserved or currently in use, please choose a different one.": [\n            null,\n            "L’alias choisi est réservé ou actuellment utilisé, veuillez en choisir un différent."\n         ],\n         "Please choose your nickname": [\n            null,\n            "Veuillez choisir votre alias"\n         ],\n         "Nickname": [\n            null,\n            "Alias"\n         ],\n         "Enter room": [\n            null,\n            "Entrer dans le salon"\n         ],\n         "This chatroom requires a password": [\n            null,\n            "Ce salon nécessite un mot de passe"\n         ],\n         "Password: ": [\n            null,\n            "Mot de passe : "\n         ],\n         "Submit": [\n            null,\n            "Soumettre"\n         ],\n         "This action was done by %1$s.": [\n            null,\n            "L’action a été réalisée par %1$s."\n         ],\n         "The reason given is: \\"%1$s\\".": [\n            null,\n            "La raison indiquée est : « %1$s »."\n         ],\n         "The reason given is: \\"": [\n            null,\n            "La raison indiquée est : \\""\n         ],\n         " has left the room. \\"": [\n            null,\n            " a quitté le salon. \\""\n         ],\n         " has left the room": [\n            null,\n            " a quitté le salon"\n         ],\n         " has joined the room. \\"": [\n            null,\n            " a rejoint le salon. \\""\n         ],\n         " has joined the room.": [\n            null,\n            " a rejoint le salon."\n         ],\n         "Topic set by %1$s to: %2$s": [\n            null,\n            "Le sujet « %2$s » a été défini par %1$s"\n         ],\n         "Click to mention ": [\n            null,\n            "Cliquer pour citer "\n         ],\n         "This user is a moderator.": [\n            null,\n            "Cet utilisateur est un modérateur."\n         ],\n         "This user can send messages in this room.": [\n            null,\n            "Cet utilisateur peut envoyer des messages dans ce salon."\n         ],\n         "This user can NOT send messages in this room.": [\n            null,\n            "Cet utilisateur ne peut PAS envoyer de messages dans ce salon."\n         ],\n         "Occupants": [\n            null,\n            "Participants :"\n         ],\n         "Invite": [\n            null,\n            "Inviter"\n         ],\n         "Features": [\n            null,\n            "Caractéristiques"\n         ],\n         "Hidden": [\n            null,\n            "Masqué"\n         ],\n         "Message archiving": [\n            null,\n            "Archivage du message"\n         ],\n         "Members only": [\n            null,\n            "Membres uniquement"\n         ],\n         "Moderated": [\n            null,\n            "Modéré"\n         ],\n         "Non-anonymous": [\n            null,\n            "Non-anonyme"\n         ],\n         "Open": [\n            null,\n            "Ouvrir"\n         ],\n         "Password protected": [\n            null,\n            "Protégé par mot de passe"\n         ],\n         "Persistent": [\n            null,\n            "Persistant"\n         ],\n         "Public": [\n            null,\n            "Public"\n         ],\n         "Semi-anonymous": [\n            null,\n            "Semi-anonyme"\n         ],\n         "Temporary": [\n            null,\n            "Temporaire"\n         ],\n         "Unmoderated": [\n            null,\n            "Non modéré"\n         ],\n         "Unsecured": [\n            null,\n            "Non sécurisé"\n         ],\n         "Messages are archived on the server": [\n            null,\n            "Les messages sont archivés sur le serveur"\n         ],\n         "This room is restricted to members only": [\n            null,\n            "Ce salon est restreint aux membres uniquement"\n         ],\n         "This room is being moderated": [\n            null,\n            "Ce salon est modéré"\n         ],\n         "All other room occupants can see your Jabber ID": [\n            null,\n            "Tous les autres occupants de ce salon peuvent voir votre ID Jabber"\n         ],\n         "Anyone can join this room": [\n            null,\n            "N’importe qui peut rejoindre ce salon"\n         ],\n         "This room requires a password before entry": [\n            null,\n            "Ce salon nécessite un mot de passe pour y accéder"\n         ],\n         "Only moderators can see your Jabber ID": [\n            null,\n            "Seuls les modérateurs peuvent voir votre identifiant Jabber"\n         ],\n         "This room will disappear once the last person leaves": [\n            null,\n            "Ce salon disparaîtra au départ de la dernière personne"\n         ],\n         "This room is not being moderated": [\n            null,\n            "Ce salon n’est pas modéré"\n         ],\n         "This room does not require a password upon entry": [\n            null,\n            "Ce salon nécessite un mot de passe pour y accéder"\n         ],\n         "You are about to invite %1$s to the chat room \\"%2$s\\". ": [\n            null,\n            "Vous vous apprêtez à inviter %1$s dans le salon \\"%2$s\\". "\n         ],\n         "You may optionally include a message, explaining the reason for the invitation.": [\n            null,\n            "Vous pouvez facultativement ajouter un message, expliquant la raison de cette invitation."\n         ],\n         "Room name": [\n            null,\n            "Nom du salon"\n         ],\n         "Server": [\n            null,\n            "Serveur"\n         ],\n         "Join Room": [\n            null,\n            "Rejoindre"\n         ],\n         "Show rooms": [\n            null,\n            "Afficher les salons"\n         ],\n         "Rooms": [\n            null,\n            "Salons"\n         ],\n         "No rooms on %1$s": [\n            null,\n            "Aucun salon dans %1$s"\n         ],\n         "Rooms on %1$s": [\n            null,\n            "Salons dans %1$s"\n         ],\n         "Description:": [\n            null,\n            "Description :"\n         ],\n         "Occupants:": [\n            null,\n            "Participants :"\n         ],\n         "Features:": [\n            null,\n            "Caractéristiques :"\n         ],\n         "Requires authentication": [\n            null,\n            "Nécessite une authentification"\n         ],\n         "Requires an invitation": [\n            null,\n            "Nécessite une invitation"\n         ],\n         "Open room": [\n            null,\n            "Ouvrir un salon"\n         ],\n         "Permanent room": [\n            null,\n            "Salon permanent"\n         ],\n         "Temporary room": [\n            null,\n            "Salon temporaire"\n         ],\n         "%1$s has invited you to join a chat room: %2$s": [\n            null,\n            "%1$s vous invite à rejoindre le salon : %2$s"\n         ],\n         "%1$s has invited you to join a chat room: %2$s, and left the following reason: \\"%3$s\\"": [\n            null,\n            "%1$s vous invite à rejoindre le salon : %2$s, avec le message suivant:\\"%3$s\\""\n         ],\n         "Notification from %1$s": [\n            null,\n            "Notification depuis %1$s"\n         ],\n         "%1$s says": [\n            null,\n            "%1$s dit"\n         ],\n         "has come online": [\n            null,\n            "s’est déconnecté"\n         ],\n         "wants to be your contact": [\n            null,\n            "veut être votre contact"\n         ],\n         "Re-establishing encrypted session": [\n            null,\n            "Rétablissement d’une session chiffrée"\n         ],\n         "Generating private key.": [\n            null,\n            "Génération de la clé privée."\n         ],\n         "Your browser might become unresponsive.": [\n            null,\n            "Votre navigateur pourrait ne plus répondre."\n         ],\n         "Authentication request from %1$s\\n\\nYour chat contact is attempting to verify your identity, by asking you the question below.\\n\\n%2$s": [\n            null,\n            "Demande d’authentification de %1$s\\n\\nVotre contact tente de vérifier votre identité, en vous posant la question ci-dessous.\\n\\n%2$s"\n         ],\n         "Could not verify this user\'s identify.": [\n            null,\n            "L’identité de cet utilisateur ne peut pas être vérifiée."\n         ],\n         "Exchanging private key with contact.": [\n            null,\n            "Échange de la clef privée avec le contact."\n         ],\n         "Your messages are not encrypted anymore": [\n            null,\n            "Vos messages ne sont plus chiffrés"\n         ],\n         "Your messages are now encrypted but your contact\'s identity has not been verified.": [\n            null,\n            "Vos messages sont maintenant chiffrés mais l’identité de votre contact n’a pas encore été vérifiée."\n         ],\n         "Your contact\'s identify has been verified.": [\n            null,\n            "L’identité de votre contact a été vérifiée."\n         ],\n         "Your contact has ended encryption on their end, you should do the same.": [\n            null,\n            "Votre contact a arrêté le chiffrement de son côté, vous devriez le faire aussi."\n         ],\n         "Your message could not be sent": [\n            null,\n            "Votre message ne peut pas être envoyé"\n         ],\n         "We received an unencrypted message": [\n            null,\n            "Un message non chiffré a été reçu"\n         ],\n         "We received an unreadable encrypted message": [\n            null,\n            "Un message chiffré illisible a été reçu"\n         ],\n         "Here are the fingerprints, please confirm them with %1$s, outside of this chat.\\n\\nFingerprint for you, %2$s: %3$s\\n\\nFingerprint for %1$s: %4$s\\n\\nIf you have confirmed that the fingerprints match, click OK, otherwise click Cancel.": [\n            null,\n            "Voici les empreintes de sécurité, veuillez les confirmer avec %1$s, en dehors de ce chat.\\n\\nEmpreinte pour vous, %2$s : %3$s\\n\\nEmpreinte pour %1$s : %4$s\\n\\nSi vous avez confirmé que les empreintes correspondent, cliquez OK, sinon cliquez Annuler."\n         ],\n         "You will be prompted to provide a security question and then an answer to that question.\\n\\nYour contact will then be prompted the same question and if they type the exact same answer (case sensitive), their identity will be verified.": [\n            null,\n            "Vous allez être invité à fournir une question de sécurité et une réponse à cette question.\\n\\nVotre contact devra répondre à la même question et s’il fournit la même réponse (sensible à la casse), son identité sera vérifiée."\n         ],\n         "What is your security question?": [\n            null,\n            "Quelle est votre question de sécurité ?"\n         ],\n         "What is the answer to the security question?": [\n            null,\n            "Quelle est la réponse à la question de sécurité ?"\n         ],\n         "Invalid authentication scheme provided": [\n            null,\n            "Schéma d’authentification fourni non valide"\n         ],\n         "Your messages are not encrypted. Click here to enable OTR encryption.": [\n            null,\n            "Vos messages ne sont pas chiffrés. Cliquez ici pour activer le chiffrement OTR."\n         ],\n         "Your messages are encrypted, but your contact has not been verified.": [\n            null,\n            "Vos messages sont chiffrés, mais votre contact n’a pas été vérifié."\n         ],\n         "Your messages are encrypted and your contact verified.": [\n            null,\n            "Vos messages sont chiffrés et votre contact est vérifié."\n         ],\n         "Your contact has closed their end of the private session, you should do the same": [\n            null,\n            "Votre contact a fermé la session privée de son côté, vous devriez le faire aussi"\n         ],\n         "End encrypted conversation": [\n            null,\n            "Terminer la conversation chiffrée"\n         ],\n         "Refresh encrypted conversation": [\n            null,\n            "Actualiser la conversation chiffrée"\n         ],\n         "Start encrypted conversation": [\n            null,\n            "Démarrer une conversation chiffrée"\n         ],\n         "Verify with fingerprints": [\n            null,\n            "Vérifier par empreintes de sécurité"\n         ],\n         "Verify with SMP": [\n            null,\n            "Vérifier par Question/Réponse"\n         ],\n         "What\'s this?": [\n            null,\n            "Qu’est-ce que c’est ?"\n         ],\n         "unencrypted": [\n            null,\n            "chiffré"\n         ],\n         "unverified": [\n            null,\n            "non vérifié"\n         ],\n         "verified": [\n            null,\n            "vérifié"\n         ],\n         "finished": [\n            null,\n            "terminé"\n         ],\n         " e.g. conversejs.org": [\n            null,\n            " e.g. conversejs.org"\n         ],\n         "Your XMPP provider\'s domain name:": [\n            null,\n            "Votre domaine XMPP :"\n         ],\n         "Fetch registration form": [\n            null,\n            "Récupération du formulaire d’enregistrement"\n         ],\n         "Tip: A list of public XMPP providers is available": [\n            null,\n            "Astuce : une liste publique de fournisseurs XMPP est disponible"\n         ],\n         "here": [\n            null,\n            "ici"\n         ],\n         "Register": [\n            null,\n            "S’enregistrer"\n         ],\n         "Sorry, the given provider does not support in band account registration. Please try with a different provider.": [\n            null,\n            "Désolé, le fournisseur indiqué ne supporte pas l’enregistrement de compte en ligne. Merci d’essayer avec un autre fournisseur."\n         ],\n         "Requesting a registration form from the XMPP server": [\n            null,\n            "Demande du formulaire enregistrement au serveur XMPP"\n         ],\n         "Something went wrong while establishing a connection with \\"%1$s\\". Are you sure it exists?": [\n            null,\n            "Quelque chose a échoué lors de l’établissement de la connexion avec \\"%1$s\\". Existe-t-il vraiment ?"\n         ],\n         "Now logging you in": [\n            null,\n            "En cours de connexion"\n         ],\n         "Registered successfully": [\n            null,\n            "Enregistré avec succès"\n         ],\n         "Return": [\n            null,\n            "Retourner"\n         ],\n         "The provider rejected your registration attempt. Please check the values you entered for correctness.": [\n            null,\n            "Le fournisseur a rejeté votre demande d’enregistrement."\n         ],\n         "Retry": [\n            null,\n            ""\n         ],\n         "This contact is busy": [\n            null,\n            "Ce contact est occupé"\n         ],\n         "This contact is online": [\n            null,\n            "Ce contact est connecté"\n         ],\n         "This contact is offline": [\n            null,\n            "Ce contact est déconnecté"\n         ],\n         "This contact is unavailable": [\n            null,\n            "Ce contact est indisponible"\n         ],\n         "This contact is away for an extended period": [\n            null,\n            "Ce contact est absent"\n         ],\n         "This contact is away": [\n            null,\n            "Ce contact est absent"\n         ],\n         "Groups": [\n            null,\n            "Groupes"\n         ],\n         "My contacts": [\n            null,\n            "Mes contacts"\n         ],\n         "Pending contacts": [\n            null,\n            "Contacts en attente"\n         ],\n         "Contact requests": [\n            null,\n            "Demandes de contacts"\n         ],\n         "Ungrouped": [\n            null,\n            "Sans groupe"\n         ],\n         "Filter": [\n            null,\n            "Filtrer"\n         ],\n         "State": [\n            null,\n            "Status"\n         ],\n         "Any": [\n            null,\n            "Aucun"\n         ],\n         "Chatty": [\n            null,\n            ""\n         ],\n         "Extended Away": [\n            null,\n            ""\n         ],\n         "Click to remove this contact": [\n            null,\n            "Cliquez pour supprimer ce contact"\n         ],\n         "Click to accept this contact request": [\n            null,\n            "Cliquez pour accepter la demande de ce contact"\n         ],\n         "Click to decline this contact request": [\n            null,\n            "Cliquez pour refuser la demande de ce contact"\n         ],\n         "Click to chat with this contact": [\n            null,\n            "Cliquez pour discuter avec ce contact"\n         ],\n         "Name": [\n            null,\n            "Nom"\n         ],\n         "Are you sure you want to remove this contact?": [\n            null,\n            "Voulez-vous vraiment supprimer ce contact ?"\n         ],\n         "Sorry, there was an error while trying to remove ": [\n            null,\n            "Désolé, il y a eu une erreur lors de la tentative de retrait "\n         ],\n         "Are you sure you want to decline this contact request?": [\n            null,\n            "Voulez-vous vraiment refuser cette demande de contact ?"\n         ]\n      }\n   }\n}';});


define('text!he',[],function () { return '{\n   "domain": "converse",\n   "locale_data": {\n      "converse": {\n         "": {\n            "domain": "converse",\n            "plural_forms": "nplurals=2; plural=(n != 1);",\n            "lang": "he"\n         },\n         "Bookmark this room": [\n            null,\n            ""\n         ],\n         "The name for this bookmark:": [\n            null,\n            ""\n         ],\n         "Would you like this room to be automatically joined upon startup?": [\n            null,\n            ""\n         ],\n         "What should your nickname for this room be?": [\n            null,\n            ""\n         ],\n         "Save": [\n            null,\n            "שמור"\n         ],\n         "Cancel": [\n            null,\n            "ביטול"\n         ],\n         "Bookmarked Rooms": [\n            null,\n            ""\n         ],\n         "Click to open this room": [\n            null,\n            "לחץ כדי לפתוח את חדר זה"\n         ],\n         "Show more information on this room": [\n            null,\n            "הצג עוד מידע אודות חדר זה"\n         ],\n         "Remove this bookmark": [\n            null,\n            ""\n         ],\n         "Personal message": [\n            null,\n            "הודעה אישית"\n         ],\n         "Send": [\n            null,\n            ""\n         ],\n         "me": [\n            null,\n            "אני"\n         ],\n         "A very large message has been received.This might be due to an attack meant to degrade the chat performance.Output has been shortened.": [\n            null,\n            ""\n         ],\n         "Typing from another device": [\n            null,\n            ""\n         ],\n         "is typing": [\n            null,\n            "מקליד(ה) כעת"\n         ],\n         "Stopped typing on the other device": [\n            null,\n            ""\n         ],\n         "has stopped typing": [\n            null,\n            "חדל(ה) להקליד"\n         ],\n         "has gone away": [\n            null,\n            "נעדר(ת)"\n         ],\n         "Show this menu": [\n            null,\n            "הצג את תפריט זה"\n         ],\n         "Write in the third person": [\n            null,\n            "כתוב בגוף השלישי"\n         ],\n         "Remove messages": [\n            null,\n            "הסר הודעות"\n         ],\n         "Are you sure you want to clear the messages from this chat box?": [\n            null,\n            "האם אתה בטוח כי ברצונך לטהר את ההודעות מתוך תיבת שיחה זה?"\n         ],\n         "has gone offline": [\n            null,\n            "כבר לא מקוון"\n         ],\n         "is busy": [\n            null,\n            "עסוק(ה) כעת"\n         ],\n         "Clear all messages": [\n            null,\n            "טהר את כל ההודעות"\n         ],\n         "Insert a smiley": [\n            null,\n            "הכנס סמיילי"\n         ],\n         "Start a call": [\n            null,\n            "התחל שיחה"\n         ],\n         "Contacts": [\n            null,\n            "אנשי קשר"\n         ],\n         "XMPP Username:": [\n            null,\n            "שם משתמש XMPP:"\n         ],\n         "Password:": [\n            null,\n            "סיסמה:"\n         ],\n         "Click here to log in anonymously": [\n            null,\n            "לחץ כאן כדי להתחבר באופן אנונימי"\n         ],\n         "Log In": [\n            null,\n            "כניסה"\n         ],\n         "user@server": [\n            null,\n            ""\n         ],\n         "password": [\n            null,\n            "סיסמה"\n         ],\n         "Sign in": [\n            null,\n            "התחברות"\n         ],\n         "I am %1$s": [\n            null,\n            "מצבי כעת הינו %1$s"\n         ],\n         "Click here to write a custom status message": [\n            null,\n            "לחץ כאן כדי לכתוב הודעת מצב מותאמת"\n         ],\n         "Click to change your chat status": [\n            null,\n            "לחץ כדי לשנות את הודעת השיחה שלך"\n         ],\n         "Custom status": [\n            null,\n            "מצב מותאם"\n         ],\n         "online": [\n            null,\n            "מקוון"\n         ],\n         "busy": [\n            null,\n            "עסוק"\n         ],\n         "away for long": [\n            null,\n            "נעדר לזמן מה"\n         ],\n         "away": [\n            null,\n            "נעדר"\n         ],\n         "offline": [\n            null,\n            "לא מקוון"\n         ],\n         "Online": [\n            null,\n            "מקוון"\n         ],\n         "Busy": [\n            null,\n            "עסוק"\n         ],\n         "Away": [\n            null,\n            "נעדר"\n         ],\n         "Offline": [\n            null,\n            "לא מקוון"\n         ],\n         "Log out": [\n            null,\n            "התנתקות"\n         ],\n         "Contact name": [\n            null,\n            "שם איש קשר"\n         ],\n         "Search": [\n            null,\n            "חיפוש"\n         ],\n         "Add": [\n            null,\n            "הוסף"\n         ],\n         "Click to add new chat contacts": [\n            null,\n            "לחץ כדי להוסיף אנשי קשר שיחה חדשים"\n         ],\n         "Add a contact": [\n            null,\n            "הוסף איש קשר"\n         ],\n         "No users found": [\n            null,\n            "לא נמצאו משתמשים"\n         ],\n         "Click to add as a chat contact": [\n            null,\n            "לחץ כדי להוסיף בתור איש קשר שיחה"\n         ],\n         "Toggle chat": [\n            null,\n            "הפעל שיח"\n         ],\n         "Reconnecting": [\n            null,\n            "כעת מתחבר"\n         ],\n         "The connection has dropped, attempting to reconnect.": [\n            null,\n            ""\n         ],\n         "Connecting": [\n            null,\n            "כעת מתחבר"\n         ],\n         "Authenticating": [\n            null,\n            "כעת מאמת"\n         ],\n         "Authentication Failed": [\n            null,\n            "אימות נכשל"\n         ],\n         "Sorry, there was an error while trying to add ": [\n            null,\n            "מצטערים, היתה שגיאה במהלך ניסיון הוספת "\n         ],\n         "This client does not allow presence subscriptions": [\n            null,\n            "לקוח זה לא מתיר הרשמות נוכחות"\n         ],\n         "Click to hide these contacts": [\n            null,\n            "לחץ כדי להסתיר את אנשי קשר אלה"\n         ],\n         "Minimize this chat box": [\n            null,\n            ""\n         ],\n         "Click to restore this chat": [\n            null,\n            "לחץ כדי לשחזר את שיחה זו"\n         ],\n         "Minimized": [\n            null,\n            "ממוזער"\n         ],\n         "This room is not anonymous": [\n            null,\n            "חדר זה אינו אנונימי"\n         ],\n         "This room now shows unavailable members": [\n            null,\n            "חדר זה כעת מציג חברים לא זמינים"\n         ],\n         "This room does not show unavailable members": [\n            null,\n            "חדר זה לא מציג חברים לא זמינים"\n         ],\n         "Room logging is now enabled": [\n            null,\n            "יומן חדר הינו מופעל כעת"\n         ],\n         "Room logging is now disabled": [\n            null,\n            "יומן חדר הינו מנוטרל כעת"\n         ],\n         "This room is now semi-anonymous": [\n            null,\n            "חדר זה הינו אנונימי-למחצה כעת"\n         ],\n         "This room is now fully-anonymous": [\n            null,\n            "חדר זה הינו אנונימי-לחלוטין כעת"\n         ],\n         "A new room has been created": [\n            null,\n            "חדר חדש נוצר"\n         ],\n         "You have been banned from this room": [\n            null,\n            "נאסרת מתוך חדר זה"\n         ],\n         "You have been kicked from this room": [\n            null,\n            "נבעטת מתוך חדר זה"\n         ],\n         "You have been removed from this room because of an affiliation change": [\n            null,\n            "הוסרת מתוך חדר זה משום שינוי שיוך"\n         ],\n         "You have been removed from this room because the room has changed to members-only and you\'re not a member": [\n            null,\n            "הוסרת מתוך חדר זה משום שהחדר שונה לחברים-בלבד ואינך במעמד של חבר"\n         ],\n         "You have been removed from this room because the MUC (Multi-user chat) service is being shut down.": [\n            null,\n            "הוסרת מתוך חדר זה משום ששירות שמ״מ (שיחה מרובת משתמשים) זה כעת מצוי בהליכי סגירה."\n         ],\n         "Message": [\n            null,\n            "הודעה"\n         ],\n         "Error: the \\"": [\n            null,\n            ""\n         ],\n         "Are you sure you want to clear the messages from this room?": [\n            null,\n            "האם אתה בטוח כי ברצונך לטהר את ההודעות מתוך חדר זה?"\n         ],\n         "Error: could not execute the command": [\n            null,\n            "שגיאה: לא היתה אפשרות לבצע פקודה"\n         ],\n         "Change user\'s affiliation to admin": [\n            null,\n            "שנה סינוף משתמש למנהל"\n         ],\n         "Ban user from room": [\n            null,\n            "אסור משתמש מתוך חדר"\n         ],\n         "Kick user from room": [\n            null,\n            "בעט משתמש מתוך חדר"\n         ],\n         "Write in 3rd person": [\n            null,\n            "כתוב בגוף שלישי"\n         ],\n         "Grant membership to a user": [\n            null,\n            "הענק חברות למשתמש"\n         ],\n         "Remove user\'s ability to post messages": [\n            null,\n            "הסר יכולת משתמש לפרסם הודעות"\n         ],\n         "Change your nickname": [\n            null,\n            "שנה את השם כינוי שלך"\n         ],\n         "Grant moderator role to user": [\n            null,\n            "הענק תפקיד אחראי למשתמש"\n         ],\n         "Grant ownership of this room": [\n            null,\n            "הענק בעלות על חדר זה"\n         ],\n         "Revoke user\'s membership": [\n            null,\n            "שלול חברות משתמש"\n         ],\n         "Set room subject (alias for /subject)": [\n            null,\n            ""\n         ],\n         "Allow muted user to post messages": [\n            null,\n            "התר למשתמש מושתק לפרסם הודעות"\n         ],\n         "The nickname you chose is reserved or currently in use, please choose a different one.": [\n            null,\n            ""\n         ],\n         "Nickname": [\n            null,\n            "שם כינוי"\n         ],\n         "This chatroom requires a password": [\n            null,\n            "חדר שיחה זה מצריך סיסמה"\n         ],\n         "Password: ": [\n            null,\n            "סיסמה: "\n         ],\n         "Submit": [\n            null,\n            "שלח"\n         ],\n         "The reason given is: \\"": [\n            null,\n            "הסיבה שניתנה היא: \\""\n         ],\n         " has left the room. \\"": [\n            null,\n            ""\n         ],\n         " has joined the room. \\"": [\n            null,\n            ""\n         ],\n         " has joined the room.": [\n            null,\n            ""\n         ],\n         "Topic set by %1$s to: %2$s": [\n            null,\n            "נושא חדר זה נקבע על ידי %1$s אל: %2$s"\n         ],\n         "Occupants": [\n            null,\n            "נוכחים"\n         ],\n         "Invite": [\n            null,\n            "הזמנה"\n         ],\n         "Hidden": [\n            null,\n            "נסתר"\n         ],\n         "Message archiving": [\n            null,\n            ""\n         ],\n         "Members only": [\n            null,\n            ""\n         ],\n         "Moderated": [\n            null,\n            "מבוקר"\n         ],\n         "Non-anonymous": [\n            null,\n            "לא-אנונימי"\n         ],\n         "Persistent": [\n            null,\n            ""\n         ],\n         "Public": [\n            null,\n            "פומבי"\n         ],\n         "Semi-anonymous": [\n            null,\n            "אנונימי-למחצה"\n         ],\n         "Unmoderated": [\n            null,\n            "לא מבוקר"\n         ],\n         "Unsecured": [\n            null,\n            ""\n         ],\n         "Messages are archived on the server": [\n            null,\n            ""\n         ],\n         "All other room occupants can see your Jabber ID": [\n            null,\n            ""\n         ],\n         "This room persists even if it\'s unoccupied": [\n            null,\n            ""\n         ],\n         "Only moderators can see your Jabber ID": [\n            null,\n            ""\n         ],\n         "This room will disappear once the last person leaves": [\n            null,\n            ""\n         ],\n         "You are about to invite %1$s to the chat room \\"%2$s\\". ": [\n            null,\n            "אתה עומד להזמין את %1$s לחדר שיחה \\"%2$s\\". "\n         ],\n         "You may optionally include a message, explaining the reason for the invitation.": [\n            null,\n            "באפשרותך להכליל הודעה, אשר  מסבירה את הסיבה להזמנה."\n         ],\n         "Room name": [\n            null,\n            "שם חדר"\n         ],\n         "Server": [\n            null,\n            "שרת"\n         ],\n         "Join Room": [\n            null,\n            "הצטרף לחדר"\n         ],\n         "Show rooms": [\n            null,\n            "הצג חדרים"\n         ],\n         "Rooms": [\n            null,\n            "חדרים"\n         ],\n         "No rooms on %1$s": [\n            null,\n            "אין חדרים על %1$s"\n         ],\n         "Rooms on %1$s": [\n            null,\n            "חדרים על %1$s"\n         ],\n         "Description:": [\n            null,\n            "תיאור:"\n         ],\n         "Occupants:": [\n            null,\n            "נוכחים:"\n         ],\n         "Features:": [\n            null,\n            "תכונות:"\n         ],\n         "Requires authentication": [\n            null,\n            "מצריך אישור"\n         ],\n         "Requires an invitation": [\n            null,\n            "מצריך הזמנה"\n         ],\n         "Open room": [\n            null,\n            "חדר פתוח"\n         ],\n         "Permanent room": [\n            null,\n            "חדר צמיתה"\n         ],\n         "Temporary room": [\n            null,\n            "חדר זמני"\n         ],\n         "%1$s has invited you to join a chat room: %2$s": [\n            null,\n            "%1$s הזמינך להצטרף לחדר שיחה: %2$s"\n         ],\n         "%1$s has invited you to join a chat room: %2$s, and left the following reason: \\"%3$s\\"": [\n            null,\n            "%1$s הזמינך להצטרף לחדר שיחה: %2$s, והשאיר את הסיבה הבאה: \\"%3$s\\""\n         ],\n         "Notification from %1$s": [\n            null,\n            ""\n         ],\n         "%1$s says": [\n            null,\n            ""\n         ],\n         "wants to be your contact": [\n            null,\n            ""\n         ],\n         "Re-establishing encrypted session": [\n            null,\n            "בסס מחדש ישיבה מוצפנת"\n         ],\n         "Generating private key.": [\n            null,\n            "כעת מפיק מפתח פרטי."\n         ],\n         "Your browser might become unresponsive.": [\n            null,\n            "הדפדפן שלך עשוי שלא להגיב."\n         ],\n         "Authentication request from %1$s\\n\\nYour chat contact is attempting to verify your identity, by asking you the question below.\\n\\n%2$s": [\n            null,\n            "בקשת אימות מאת %1$s\\n\\nהאיש קשר שלך מנסה לאמת את הזהות שלך, בעזרת שאילת השאלה שלהלן.\\n\\n%2$s"\n         ],\n         "Could not verify this user\'s identify.": [\n            null,\n            "לא היתה אפשרות לאמת את זהות משתמש זה."\n         ],\n         "Exchanging private key with contact.": [\n            null,\n            "מחליף מפתח פרטי עם איש קשר."\n         ],\n         "Your messages are not encrypted anymore": [\n            null,\n            "ההודעות שלך אינן מוצפנות עוד"\n         ],\n         "Your messages are now encrypted but your contact\'s identity has not been verified.": [\n            null,\n            "ההודעות שלך מוצפנות כעת אך זהות האיש קשר שלך טרם אומתה."\n         ],\n         "Your contact\'s identify has been verified.": [\n            null,\n            "זהות האיש קשר שלך אומתה."\n         ],\n         "Your contact has ended encryption on their end, you should do the same.": [\n            null,\n            "האיש קשר סיים הצפנה בקצה שלהם, עליך לעשות זאת גם כן."\n         ],\n         "Your message could not be sent": [\n            null,\n            "ההודעה שלך לא היתה יכולה להישלח"\n         ],\n         "We received an unencrypted message": [\n            null,\n            "אנחנו קיבלנו הודעה לא מוצפנת"\n         ],\n         "We received an unreadable encrypted message": [\n            null,\n            "אנחנו קיבלנו הודעה מוצפנת לא קריאה"\n         ],\n         "Here are the fingerprints, please confirm them with %1$s, outside of this chat.\\n\\nFingerprint for you, %2$s: %3$s\\n\\nFingerprint for %1$s: %4$s\\n\\nIf you have confirmed that the fingerprints match, click OK, otherwise click Cancel.": [\n            null,\n            "הרי טביעות האצבע, אנא אמת אותן עם %1$s, מחוץ לשיחה זו.\\n\\nטביעת אצבע עבורך, %2$s: %3$s\\n\\nטביעת אצבע עבור %1$s: %4$s\\n\\nהיה ואימתת כי טביעות האצבע תואמות, לחץ אישור (OK), אחרת לחץ ביטול (Cancel)."\n         ],\n         "You will be prompted to provide a security question and then an answer to that question.\\n\\nYour contact will then be prompted the same question and if they type the exact same answer (case sensitive), their identity will be verified.": [\n            null,\n            "אתה תתבקש לספק שאלת אבטחה ולאחריה תשובה לשאלה הזו.\\n\\nהאיש קשר יתבקש עובר זאת לאותה שאלת אבטחה ואם אלו יקלידו את אותה התשובה במדויק (case sensitive), זהותם תאומת."\n         ],\n         "What is your security question?": [\n            null,\n            "מהי שאלת האבטחה שלך?"\n         ],\n         "What is the answer to the security question?": [\n            null,\n            "מהי התשובה לשאלת האבטחה?"\n         ],\n         "Invalid authentication scheme provided": [\n            null,\n            "סופקה סכימת אימות שגויה"\n         ],\n         "Your messages are not encrypted. Click here to enable OTR encryption.": [\n            null,\n            "ההודעות שלך אינן מוצפנות. לחץ כאן כדי לאפשר OTR."\n         ],\n         "Your messages are encrypted, but your contact has not been verified.": [\n            null,\n            "ההודעות שלך מוצפנות כעת, אך האיש קשר שלך טרם אומת."\n         ],\n         "Your messages are encrypted and your contact verified.": [\n            null,\n            "ההודעות שלך מוצפנות כעת והאיש קשר שלך אומת."\n         ],\n         "Your contact has closed their end of the private session, you should do the same": [\n            null,\n            "האיש קשר סגר את קצה ישיבה פרטית שלהם, עליך לעשות זאת גם כן"\n         ],\n         "End encrypted conversation": [\n            null,\n            "סיים ישיבה מוצפנת"\n         ],\n         "Refresh encrypted conversation": [\n            null,\n            "רענן ישיבה מוצפנת"\n         ],\n         "Start encrypted conversation": [\n            null,\n            "התחל ישיבה מוצפנת"\n         ],\n         "Verify with fingerprints": [\n            null,\n            "אמת בעזרת טביעות אצבע"\n         ],\n         "Verify with SMP": [\n            null,\n            "אמת בעזרת SMP"\n         ],\n         "What\'s this?": [\n            null,\n            "מה זה?"\n         ],\n         "unencrypted": [\n            null,\n            "לא מוצפנת"\n         ],\n         "unverified": [\n            null,\n            "לא מאומתת"\n         ],\n         "verified": [\n            null,\n            "מאומתת"\n         ],\n         "finished": [\n            null,\n            "מוגמרת"\n         ],\n         " e.g. conversejs.org": [\n            null,\n            " למשל conversejs.org"\n         ],\n         "Your XMPP provider\'s domain name:": [\n            null,\n            "שם מתחם של ספק XMPP שלך:"\n         ],\n         "Fetch registration form": [\n            null,\n            "משוך טופס הרשמה"\n         ],\n         "Tip: A list of public XMPP providers is available": [\n            null,\n            "טיפ: רשימה פומבית של ספקי XMPP הינה זמינה"\n         ],\n         "here": [\n            null,\n            "כאן"\n         ],\n         "Register": [\n            null,\n            "הירשם"\n         ],\n         "Sorry, the given provider does not support in band account registration. Please try with a different provider.": [\n            null,\n            "מצטערים, הספק שניתן לא תומך ברישום חשבונות in band. אנא נסה עם ספק אחר."\n         ],\n         "Requesting a registration form from the XMPP server": [\n            null,\n            "כעת מבקש טופס הרשמה מתוך שרת XMPP"\n         ],\n         "Something went wrong while establishing a connection with \\"%1$s\\". Are you sure it exists?": [\n            null,\n            "משהו השתבש במהלך ביסוס חיבור עם \\"%1$s\\". האם אתה בטוח כי זה קיים?"\n         ],\n         "Now logging you in": [\n            null,\n            "כעת מחבר אותך פנימה"\n         ],\n         "Registered successfully": [\n            null,\n            "נרשם בהצלחה"\n         ],\n         "Return": [\n            null,\n            "חזור"\n         ],\n         "Retry": [\n            null,\n            ""\n         ],\n         "This contact is busy": [\n            null,\n            "איש קשר זה עסוק"\n         ],\n         "This contact is online": [\n            null,\n            "איש קשר זה מקוון"\n         ],\n         "This contact is offline": [\n            null,\n            "איש קשר זה אינו מקוון"\n         ],\n         "This contact is unavailable": [\n            null,\n            "איש קשר זה לא זמין"\n         ],\n         "This contact is away for an extended period": [\n            null,\n            "איש קשר זה נעדר למשך זמן ממושך"\n         ],\n         "This contact is away": [\n            null,\n            "איש קשר זה הינו נעדר"\n         ],\n         "Groups": [\n            null,\n            "קבוצות"\n         ],\n         "My contacts": [\n            null,\n            "האנשי קשר שלי"\n         ],\n         "Pending contacts": [\n            null,\n            "אנשי קשר ממתינים"\n         ],\n         "Contact requests": [\n            null,\n            "בקשות איש קשר"\n         ],\n         "Ungrouped": [\n            null,\n            "ללא קבוצה"\n         ],\n         "Filter": [\n            null,\n            ""\n         ],\n         "State": [\n            null,\n            ""\n         ],\n         "Any": [\n            null,\n            ""\n         ],\n         "Chatty": [\n            null,\n            ""\n         ],\n         "Extended Away": [\n            null,\n            ""\n         ],\n         "Click to remove this contact": [\n            null,\n            "לחץ כדי להסיר את איש קשר זה"\n         ],\n         "Click to accept this contact request": [\n            null,\n            "לחץ כדי לקבל את בקשת איש קשר זה"\n         ],\n         "Click to decline this contact request": [\n            null,\n            "לחץ כדי לסרב את בקשת איש קשר זה"\n         ],\n         "Click to chat with this contact": [\n            null,\n            "לחץ כדי לשוחח עם איש קשר זה"\n         ],\n         "Name": [\n            null,\n            "שם"\n         ],\n         "Are you sure you want to remove this contact?": [\n            null,\n            "האם אתה בטוח כי ברצונך להסיר את איש קשר זה?"\n         ],\n         "Sorry, there was an error while trying to remove ": [\n            null,\n            "מצטערים, היתה שגיאה במהלך ניסיון להסיר את "\n         ],\n         "Are you sure you want to decline this contact request?": [\n            null,\n            "האם אתה בטוח כי ברצונך לסרב את בקשת איש קשר זה?"\n         ]\n      }\n   }\n}';});


define('text!hu',[],function () { return '{\n   "domain": "converse",\n   "locale_data": {\n      "converse": {\n         "": {\n            "domain": "converse",\n            "lang": "hu"\n         },\n         "Bookmark this room": [\n            null,\n            ""\n         ],\n         "The name for this bookmark:": [\n            null,\n            ""\n         ],\n         "Would you like this room to be automatically joined upon startup?": [\n            null,\n            ""\n         ],\n         "What should your nickname for this room be?": [\n            null,\n            ""\n         ],\n         "Save": [\n            null,\n            "Ment"\n         ],\n         "Cancel": [\n            null,\n            "Mégsem"\n         ],\n         "Bookmarked Rooms": [\n            null,\n            ""\n         ],\n         "Click to open this room": [\n            null,\n            "Belépés a csevegőszobába"\n         ],\n         "Show more information on this room": [\n            null,\n            "További információk a csevegőszobáról"\n         ],\n         "Remove this bookmark": [\n            null,\n            ""\n         ],\n         "Close this chat box": [\n            null,\n            "A csevegés bezárása"\n         ],\n         "Personal message": [\n            null,\n            "Személyes üzenet"\n         ],\n         "Send": [\n            null,\n            ""\n         ],\n         "me": [\n            null,\n            "Én"\n         ],\n         "A very large message has been received.This might be due to an attack meant to degrade the chat performance.Output has been shortened.": [\n            null,\n            ""\n         ],\n         "Typing from another device": [\n            null,\n            ""\n         ],\n         "is typing": [\n            null,\n            "gépel..."\n         ],\n         "Stopped typing on the other device": [\n            null,\n            ""\n         ],\n         "has stopped typing": [\n            null,\n            "már nem gépel"\n         ],\n         "has gone away": [\n            null,\n            "távol van"\n         ],\n         "Show this menu": [\n            null,\n            "Mutasd a menüt"\n         ],\n         "Write in the third person": [\n            null,\n            "Írjon egyes szám harmadik személyben"\n         ],\n         "Remove messages": [\n            null,\n            "Üzenetek törlése"\n         ],\n         "Are you sure you want to clear the messages from this chat box?": [\n            null,\n            "Törölni szeretné az eddigi üzeneteket?"\n         ],\n         "has gone offline": [\n            null,\n            "kijelentkezett"\n         ],\n         "is busy": [\n            null,\n            "elfoglalt"\n         ],\n         "Clear all messages": [\n            null,\n            "Üzenetek törlése"\n         ],\n         "Insert a smiley": [\n            null,\n            "Hangulatjel beszúrása"\n         ],\n         "Start a call": [\n            null,\n            "Hívás indítása"\n         ],\n         "Contacts": [\n            null,\n            "Kapcsolatok"\n         ],\n         "XMPP Username:": [\n            null,\n            "XMPP/Jabber azonosító:"\n         ],\n         "Password:": [\n            null,\n            "Jelszó:"\n         ],\n         "Click here to log in anonymously": [\n            null,\n            "Kattintson ide a névtelen bejelentkezéshez"\n         ],\n         "Log In": [\n            null,\n            "Belépés"\n         ],\n         "user@server": [\n            null,\n            "felhasznalo@szerver"\n         ],\n         "password": [\n            null,\n            "jelszó"\n         ],\n         "Sign in": [\n            null,\n            "Belépés"\n         ],\n         "I am %1$s": [\n            null,\n            "%1$s vagyok"\n         ],\n         "Click here to write a custom status message": [\n            null,\n            "Egyedi státusz üzenet írása"\n         ],\n         "Click to change your chat status": [\n            null,\n            "Saját státusz beállítása"\n         ],\n         "Custom status": [\n            null,\n            "Egyedi státusz"\n         ],\n         "online": [\n            null,\n            "elérhető"\n         ],\n         "busy": [\n            null,\n            "elfoglalt"\n         ],\n         "away for long": [\n            null,\n            "hosszú ideje távol"\n         ],\n         "away": [\n            null,\n            "távol"\n         ],\n         "offline": [\n            null,\n            "nem elérhető"\n         ],\n         "Online": [\n            null,\n            "Elérhető"\n         ],\n         "Busy": [\n            null,\n            "Foglalt"\n         ],\n         "Away": [\n            null,\n            "Távol"\n         ],\n         "Offline": [\n            null,\n            "Nem elérhető"\n         ],\n         "Log out": [\n            null,\n            "Kilépés"\n         ],\n         "Contact name": [\n            null,\n            "Partner neve"\n         ],\n         "Search": [\n            null,\n            "Keresés"\n         ],\n         "Add": [\n            null,\n            "Hozzáad"\n         ],\n         "Click to add new chat contacts": [\n            null,\n            "Új csevegőpartner hozzáadása"\n         ],\n         "Add a contact": [\n            null,\n            "Új partner felvétele"\n         ],\n         "No users found": [\n            null,\n            "Nincs felhasználó"\n         ],\n         "Click to add as a chat contact": [\n            null,\n            "Felvétel a csevegőpartnerek közé"\n         ],\n         "Toggle chat": [\n            null,\n            "Csevegőablak"\n         ],\n         "Reconnecting": [\n            null,\n            "Kapcsolódás"\n         ],\n         "The connection has dropped, attempting to reconnect.": [\n            null,\n            ""\n         ],\n         "Connecting": [\n            null,\n            "Kapcsolódás"\n         ],\n         "Authenticating": [\n            null,\n            "Azonosítás"\n         ],\n         "Authentication Failed": [\n            null,\n            "Azonosítási hiba"\n         ],\n         "Sorry, there was an error while trying to add ": [\n            null,\n            "Sajnáljuk, hiba történt a hozzáadás során"\n         ],\n         "This client does not allow presence subscriptions": [\n            null,\n            "Ez a kliens nem engedélyezi a jelenlét követését"\n         ],\n         "Click to hide these contacts": [\n            null,\n            "A csevegő partnerek elrejtése"\n         ],\n         "Minimize this chat box": [\n            null,\n            "A csevegés minimalizálása"\n         ],\n         "Click to restore this chat": [\n            null,\n            "A csevegés visszaállítása"\n         ],\n         "Minimized": [\n            null,\n            "Minimalizálva"\n         ],\n         "This room is not anonymous": [\n            null,\n            "Ez a szoba NEM névtelen"\n         ],\n         "This room now shows unavailable members": [\n            null,\n            "Ez a szoba mutatja az elérhetetlen tagokat"\n         ],\n         "This room does not show unavailable members": [\n            null,\n            "Ez a szoba nem mutatja az elérhetetlen tagokat"\n         ],\n         "Room logging is now enabled": [\n            null,\n            "A szobába a belépés lehetséges"\n         ],\n         "Room logging is now disabled": [\n            null,\n            "A szobába a belépés szünetel"\n         ],\n         "This room is now semi-anonymous": [\n            null,\n            "Ez a szoba most félig névtelen"\n         ],\n         "This room is now fully-anonymous": [\n            null,\n            "Ez a szoba most teljesen névtelen"\n         ],\n         "A new room has been created": [\n            null,\n            "Létrejött egy új csevegőszoba"\n         ],\n         "You have been banned from this room": [\n            null,\n            "Ki lettél tíltva ebből a szobából"\n         ],\n         "You have been kicked from this room": [\n            null,\n            "Ki lettél dobva ebből a szobából"\n         ],\n         "You have been removed from this room because of an affiliation change": [\n            null,\n            "Taglista módosítás miatt kiléptettünk a csevegőszobából"\n         ],\n         "You have been removed from this room because the room has changed to members-only and you\'re not a member": [\n            null,\n            "Kiléptettünk a csevegőszobából, mert mostantól csak a taglistán szereplők lehetnek jelen"\n         ],\n         "You have been removed from this room because the MUC (Multi-user chat) service is being shut down.": [\n            null,\n            "Kiléptettünk a csevegőszobából, mert a MUC (Multi-User Chat) szolgáltatás leállításra került."\n         ],\n         "Message": [\n            null,\n            "Üzenet"\n         ],\n         "Hide the list of occupants": [\n            null,\n            "A résztvevők listájának elrejtése"\n         ],\n         "Error: the \\"": [\n            null,\n            "Hiba: a \\""\n         ],\n         "Are you sure you want to clear the messages from this room?": [\n            null,\n            "Törölni szeretné az üzeneteket ebből a szobából?"\n         ],\n         "Error: could not execute the command": [\n            null,\n            "Hiba: A parancs nem értelmezett"\n         ],\n         "Change user\'s affiliation to admin": [\n            null,\n            "A felhasználó adminisztrátorrá tétele"\n         ],\n         "Ban user from room": [\n            null,\n            "Felhasználó kitíltása a csevegőszobából"\n         ],\n         "Change user role to occupant": [\n            null,\n            "A felhasználó taggá tétele"\n         ],\n         "Kick user from room": [\n            null,\n            "Felhasználó kiléptetése a csevegőszobából"\n         ],\n         "Write in 3rd person": [\n            null,\n            "Írjon egyes szám harmadik személyben"\n         ],\n         "Grant membership to a user": [\n            null,\n            "Tagság megadása a felhasználónak"\n         ],\n         "Remove user\'s ability to post messages": [\n            null,\n            "A felhasználó nem küldhet üzeneteket"\n         ],\n         "Change your nickname": [\n            null,\n            "Becenév módosítása"\n         ],\n         "Grant moderator role to user": [\n            null,\n            "Moderátori jog adása a felhasználónak"\n         ],\n         "Grant ownership of this room": [\n            null,\n            "A szoba tulajdonjogának megadása"\n         ],\n         "Revoke user\'s membership": [\n            null,\n            "Tagság megvonása a felhasználótól"\n         ],\n         "Set room subject (alias for /subject)": [\n            null,\n            ""\n         ],\n         "Allow muted user to post messages": [\n            null,\n            "Elnémított felhasználók is küldhetnek üzeneteket"\n         ],\n         "The nickname you chose is reserved or currently in use, please choose a different one.": [\n            null,\n            ""\n         ],\n         "Nickname": [\n            null,\n            "Becenév"\n         ],\n         "This chatroom requires a password": [\n            null,\n            "A csevegőszobába belépéshez jelszó szükséges"\n         ],\n         "Password: ": [\n            null,\n            "Jelszó: "\n         ],\n         "Submit": [\n            null,\n            "Küldés"\n         ],\n         "The reason given is: \\"": [\n            null,\n            "Az indok: \\""\n         ],\n         " has left the room. \\"": [\n            null,\n            ""\n         ],\n         " has joined the room. \\"": [\n            null,\n            ""\n         ],\n         " has joined the room.": [\n            null,\n            ""\n         ],\n         "Topic set by %1$s to: %2$s": [\n            null,\n            "A következő témát állította be %1$s: %2$s"\n         ],\n         "Occupants": [\n            null,\n            "Jelenlevők"\n         ],\n         "Invite": [\n            null,\n            "Meghívás"\n         ],\n         "Hidden": [\n            null,\n            "Rejtett"\n         ],\n         "Message archiving": [\n            null,\n            ""\n         ],\n         "Members only": [\n            null,\n            ""\n         ],\n         "Moderated": [\n            null,\n            "Moderált"\n         ],\n         "Non-anonymous": [\n            null,\n            "NEM névtelen"\n         ],\n         "Persistent": [\n            null,\n            ""\n         ],\n         "Public": [\n            null,\n            "Nyílvános"\n         ],\n         "Semi-anonymous": [\n            null,\n            "Félig névtelen"\n         ],\n         "Unmoderated": [\n            null,\n            "Moderálatlan"\n         ],\n         "Unsecured": [\n            null,\n            ""\n         ],\n         "Messages are archived on the server": [\n            null,\n            ""\n         ],\n         "All other room occupants can see your Jabber ID": [\n            null,\n            ""\n         ],\n         "This room persists even if it\'s unoccupied": [\n            null,\n            ""\n         ],\n         "Only moderators can see your Jabber ID": [\n            null,\n            ""\n         ],\n         "This room will disappear once the last person leaves": [\n            null,\n            ""\n         ],\n         "You are about to invite %1$s to the chat room \\"%2$s\\". ": [\n            null,\n            "%1$s meghívott a(z) \\"%2$s\\" csevegőszobába. "\n         ],\n         "You may optionally include a message, explaining the reason for the invitation.": [\n            null,\n            "Megadhat egy üzenet a meghívás okaként."\n         ],\n         "Room name": [\n            null,\n            "Szoba neve"\n         ],\n         "Server": [\n            null,\n            "Szerver"\n         ],\n         "Join Room": [\n            null,\n            "Csatlakozás"\n         ],\n         "Show rooms": [\n            null,\n            "Létező szobák"\n         ],\n         "Rooms": [\n            null,\n            "Szobák"\n         ],\n         "No rooms on %1$s": [\n            null,\n            "Nincs csevegőszoba a(z) %1$s szerveren"\n         ],\n         "Rooms on %1$s": [\n            null,\n            "Csevegőszobák a(z) %1$s szerveren:"\n         ],\n         "Description:": [\n            null,\n            "Leírás:"\n         ],\n         "Occupants:": [\n            null,\n            "Jelenlevők:"\n         ],\n         "Features:": [\n            null,\n            "Tulajdonságok:"\n         ],\n         "Requires authentication": [\n            null,\n            "Azonosítás szükséges"\n         ],\n         "Requires an invitation": [\n            null,\n            "Meghívás szükséges"\n         ],\n         "Open room": [\n            null,\n            "Nyitott szoba"\n         ],\n         "Permanent room": [\n            null,\n            "Állandó szoba"\n         ],\n         "Temporary room": [\n            null,\n            "Ideiglenes szoba"\n         ],\n         "%1$s has invited you to join a chat room: %2$s": [\n            null,\n            "%1$s meghívott a(z) %2$s csevegőszobába"\n         ],\n         "%1$s has invited you to join a chat room: %2$s, and left the following reason: \\"%3$s\\"": [\n            null,\n            "%1$s meghívott a(z) %2$s csevegőszobába. Indok: \\"%3$s\\""\n         ],\n         "Notification from %1$s": [\n            null,\n            ""\n         ],\n         "%1$s says": [\n            null,\n            ""\n         ],\n         "wants to be your contact": [\n            null,\n            ""\n         ],\n         "Re-establishing encrypted session": [\n            null,\n            "Titkosított kapcsolat újraépítése"\n         ],\n         "Generating private key.": [\n            null,\n            "Privát kulcs generálása"\n         ],\n         "Your browser might become unresponsive.": [\n            null,\n            "Előfordulhat, hogy a böngésző futása megáll."\n         ],\n         "Authentication request from %1$s\\n\\nYour chat contact is attempting to verify your identity, by asking you the question below.\\n\\n%2$s": [\n            null,\n            "Azonosítási kérés érkezett: %1$s\\n\\nA csevegő partnere hitelesítést kér a következő kérdés megválaszolásával:\\n\\n%2$s"\n         ],\n         "Could not verify this user\'s identify.": [\n            null,\n            "A felhasználó ellenőrzése sikertelen."\n         ],\n         "Exchanging private key with contact.": [\n            null,\n            "Privát kulcs cseréje..."\n         ],\n         "Your messages are not encrypted anymore": [\n            null,\n            "Az üzenetek mostantól már nem titkosítottak"\n         ],\n         "Your messages are now encrypted but your contact\'s identity has not been verified.": [\n            null,\n            "Az üzenetek titikosítva vannak, de a csevegőpartnerét még nem hitelesítette."\n         ],\n         "Your contact\'s identify has been verified.": [\n            null,\n            "A csevegőpartnere hitelesítve lett."\n         ],\n         "Your contact has ended encryption on their end, you should do the same.": [\n            null,\n            "A csevegőpartnere kikapcsolta a titkosítást, így Önnek is ezt kellene tennie."\n         ],\n         "Your message could not be sent": [\n            null,\n            "Az üzenet elküldése nem sikerült"\n         ],\n         "We received an unencrypted message": [\n            null,\n            "Titkosítatlan üzenet érkezett"\n         ],\n         "We received an unreadable encrypted message": [\n            null,\n            "Visszafejthetetlen titkosított üzenet érkezett"\n         ],\n         "Here are the fingerprints, please confirm them with %1$s, outside of this chat.\\n\\nFingerprint for you, %2$s: %3$s\\n\\nFingerprint for %1$s: %4$s\\n\\nIf you have confirmed that the fingerprints match, click OK, otherwise click Cancel.": [\n            null,\n            "Ujjlenyomatok megerősítése.\\n\\nAz Ön ujjlenyomata,  %2$s: %3$s\\n\\nA csevegőpartnere ujjlenyomata, %1$s: %4$s\\n\\nAmennyiben az ujjlenyomatok biztosan egyeznek, klikkeljen az OK, ellenkező esetben a Mégse gombra."\n         ],\n         "You will be prompted to provide a security question and then an answer to that question.\\n\\nYour contact will then be prompted the same question and if they type the exact same answer (case sensitive), their identity will be verified.": [\n            null,\n            "Elsőként egy biztonsági kérdést kell majd feltennie és megválaszolnia.\\n\\nMajd a csevegőpartnerének is megjelenik ez a kérdés. Végül ha a válaszok azonosak lesznek (kis- nagybetű érzékeny), a partner hitelesítetté válik."\n         ],\n         "What is your security question?": [\n            null,\n            "Mi legyen a biztonsági kérdés?"\n         ],\n         "What is the answer to the security question?": [\n            null,\n            "Mi a válasz a biztonsági kérdésre?"\n         ],\n         "Invalid authentication scheme provided": [\n            null,\n            "Érvénytelen hitelesítési séma."\n         ],\n         "Your messages are not encrypted. Click here to enable OTR encryption.": [\n            null,\n            "Az üzenetek titkosítatlanok. OTR titkosítás aktiválása."\n         ],\n         "Your messages are encrypted, but your contact has not been verified.": [\n            null,\n            "Az üzenetek titikosítottak, de a csevegőpartnere még nem hitelesített."\n         ],\n         "Your messages are encrypted and your contact verified.": [\n            null,\n            "Az üzenetek titikosítottak és a csevegőpartnere hitelesített."\n         ],\n         "Your contact has closed their end of the private session, you should do the same": [\n            null,\n            "A csevegőpartnere lezárta a magán beszélgetést"\n         ],\n         "End encrypted conversation": [\n            null,\n            "Titkosított kapcsolat vége"\n         ],\n         "Refresh encrypted conversation": [\n            null,\n            "A titkosított kapcsolat frissítése"\n         ],\n         "Start encrypted conversation": [\n            null,\n            "Titkosított beszélgetés indítása"\n         ],\n         "Verify with fingerprints": [\n            null,\n            "Ellenőrzés újjlenyomattal"\n         ],\n         "Verify with SMP": [\n            null,\n            "Ellenőrzés SMP-vel"\n         ],\n         "What\'s this?": [\n            null,\n            "Mi ez?"\n         ],\n         "unencrypted": [\n            null,\n            "titkosítatlan"\n         ],\n         "unverified": [\n            null,\n            "nem hitelesített"\n         ],\n         "verified": [\n            null,\n            "hitelesített"\n         ],\n         "finished": [\n            null,\n            "befejezett"\n         ],\n         " e.g. conversejs.org": [\n            null,\n            "pl. conversejs.org"\n         ],\n         "Your XMPP provider\'s domain name:": [\n            null,\n            "Az XMPP szolgáltató domain neve:"\n         ],\n         "Fetch registration form": [\n            null,\n            "Regisztrációs űrlap"\n         ],\n         "Tip: A list of public XMPP providers is available": [\n            null,\n            "Tipp: A nyílvános XMPP szolgáltatókról egy lista elérhető"\n         ],\n         "here": [\n            null,\n            "itt"\n         ],\n         "Register": [\n            null,\n            "Regisztráció"\n         ],\n         "Sorry, the given provider does not support in band account registration. Please try with a different provider.": [\n            null,\n            "A megadott szolgáltató nem támogatja a csevegőn keresztüli regisztrációt. Próbáljon meg egy másikat."\n         ],\n         "Requesting a registration form from the XMPP server": [\n            null,\n            "Regisztrációs űrlap lekérése az XMPP szervertől"\n         ],\n         "Something went wrong while establishing a connection with \\"%1$s\\". Are you sure it exists?": [\n            null,\n            "Hiba történt a(z) \\"%1$s\\" kapcsolódásakor. Biztos benne, hogy ez létező kiszolgáló?"\n         ],\n         "Now logging you in": [\n            null,\n            "Belépés..."\n         ],\n         "Registered successfully": [\n            null,\n            "Sikeres regisztráció"\n         ],\n         "Return": [\n            null,\n            "Visza"\n         ],\n         "The provider rejected your registration attempt. Please check the values you entered for correctness.": [\n            null,\n            "A szolgáltató visszautasította a regisztrációs kérelmet. Kérem ellenőrízze a bevitt adatok pontosságát."\n         ],\n         "Retry": [\n            null,\n            ""\n         ],\n         "This contact is busy": [\n            null,\n            "Elfoglalt"\n         ],\n         "This contact is online": [\n            null,\n            "Elérhető"\n         ],\n         "This contact is offline": [\n            null,\n            "Nincs bejelentkezve"\n         ],\n         "This contact is unavailable": [\n            null,\n            "Elérhetetlen"\n         ],\n         "This contact is away for an extended period": [\n            null,\n            "Hosszabb ideje távol"\n         ],\n         "This contact is away": [\n            null,\n            "Távol"\n         ],\n         "Groups": [\n            null,\n            "Csoportok"\n         ],\n         "My contacts": [\n            null,\n            "Kapcsolataim"\n         ],\n         "Pending contacts": [\n            null,\n            "Függőben levő kapcsolatok"\n         ],\n         "Contact requests": [\n            null,\n            "Kapcsolatnak jelölés"\n         ],\n         "Ungrouped": [\n            null,\n            "Nincs csoportosítva"\n         ],\n         "Filter": [\n            null,\n            ""\n         ],\n         "State": [\n            null,\n            ""\n         ],\n         "Any": [\n            null,\n            ""\n         ],\n         "Chatty": [\n            null,\n            ""\n         ],\n         "Extended Away": [\n            null,\n            ""\n         ],\n         "Click to remove this contact": [\n            null,\n            "Partner törlése"\n         ],\n         "Click to accept this contact request": [\n            null,\n            "Partner felvételének elfogadása"\n         ],\n         "Click to decline this contact request": [\n            null,\n            "Partner felvételének megtagadása"\n         ],\n         "Click to chat with this contact": [\n            null,\n            "Csevegés indítása ezzel a partnerünkkel"\n         ],\n         "Name": [\n            null,\n            "Név"\n         ],\n         "Are you sure you want to remove this contact?": [\n            null,\n            "Valóban törölni szeretné a csevegőpartnerét?"\n         ],\n         "Sorry, there was an error while trying to remove ": [\n            null,\n            "Sajnáljuk, hiba történt a törlés során"\n         ],\n         "Are you sure you want to decline this contact request?": [\n            null,\n            "Valóban elutasítja ezt a partnerkérelmet?"\n         ]\n      }\n   }\n}';});


define('text!id',[],function () { return '{\n   "domain": "converse",\n   "locale_data": {\n      "converse": {\n         "": {\n            "domain": "converse",\n            "lang": "id"\n         },\n         "Bookmark this room": [\n            null,\n            ""\n         ],\n         "The name for this bookmark:": [\n            null,\n            ""\n         ],\n         "Would you like this room to be automatically joined upon startup?": [\n            null,\n            ""\n         ],\n         "What should your nickname for this room be?": [\n            null,\n            ""\n         ],\n         "Save": [\n            null,\n            "Simpan"\n         ],\n         "Cancel": [\n            null,\n            "Batal"\n         ],\n         "Sorry, something went wrong while trying to save your bookmark.": [\n            null,\n            ""\n         ],\n         "Bookmarked Rooms": [\n            null,\n            ""\n         ],\n         "Click to open this room": [\n            null,\n            "Klik untuk membuka ruangan ini"\n         ],\n         "Show more information on this room": [\n            null,\n            "Tampilkan informasi ruangan ini"\n         ],\n         "Remove this bookmark": [\n            null,\n            ""\n         ],\n         "Personal message": [\n            null,\n            "Pesan pribadi"\n         ],\n         "Send": [\n            null,\n            ""\n         ],\n         "me": [\n            null,\n            "saya"\n         ],\n         "A very large message has been received.This might be due to an attack meant to degrade the chat performance.Output has been shortened.": [\n            null,\n            ""\n         ],\n         "Typing from another device": [\n            null,\n            ""\n         ],\n         "is typing": [\n            null,\n            ""\n         ],\n         "Stopped typing on the other device": [\n            null,\n            ""\n         ],\n         "has stopped typing": [\n            null,\n            ""\n         ],\n         "Show this menu": [\n            null,\n            "Tampilkan menu ini"\n         ],\n         "Write in the third person": [\n            null,\n            "Tulis ini menggunakan bahasa pihak ketiga"\n         ],\n         "Remove messages": [\n            null,\n            "Hapus pesan"\n         ],\n         "Are you sure you want to clear the messages from this chat box?": [\n            null,\n            ""\n         ],\n         "Insert a smiley": [\n            null,\n            ""\n         ],\n         "Start a call": [\n            null,\n            ""\n         ],\n         "Contacts": [\n            null,\n            "Teman"\n         ],\n         "Password:": [\n            null,\n            "Kata sandi:"\n         ],\n         "Log In": [\n            null,\n            "Masuk"\n         ],\n         "user@server": [\n            null,\n            ""\n         ],\n         "Sign in": [\n            null,\n            "Masuk"\n         ],\n         "I am %1$s": [\n            null,\n            "Saya %1$s"\n         ],\n         "Click here to write a custom status message": [\n            null,\n            "Klik untuk menulis status kustom"\n         ],\n         "Click to change your chat status": [\n            null,\n            "Klik untuk mengganti status"\n         ],\n         "Custom status": [\n            null,\n            "Status kustom"\n         ],\n         "online": [\n            null,\n            "terhubung"\n         ],\n         "busy": [\n            null,\n            "sibuk"\n         ],\n         "away for long": [\n            null,\n            "lama tak di tempat"\n         ],\n         "away": [\n            null,\n            "tak di tempat"\n         ],\n         "Online": [\n            null,\n            "Terhubung"\n         ],\n         "Busy": [\n            null,\n            "Sibuk"\n         ],\n         "Away": [\n            null,\n            "Pergi"\n         ],\n         "Offline": [\n            null,\n            "Tak Terhubung"\n         ],\n         "Contact name": [\n            null,\n            "Nama teman"\n         ],\n         "Search": [\n            null,\n            "Cari"\n         ],\n         "e.g. user@example.org": [\n            null,\n            ""\n         ],\n         "Add": [\n            null,\n            "Tambah"\n         ],\n         "Click to add new chat contacts": [\n            null,\n            "Klik untuk menambahkan teman baru"\n         ],\n         "Add a contact": [\n            null,\n            "Tambah teman"\n         ],\n         "No users found": [\n            null,\n            "Pengguna tak ditemukan"\n         ],\n         "Click to add as a chat contact": [\n            null,\n            "Klik untuk menambahkan sebagai teman"\n         ],\n         "Toggle chat": [\n            null,\n            ""\n         ],\n         "The connection has dropped, attempting to reconnect.": [\n            null,\n            ""\n         ],\n         "Connecting": [\n            null,\n            "Menyambung"\n         ],\n         "Authenticating": [\n            null,\n            "Melakukan otentikasi"\n         ],\n         "Authentication Failed": [\n            null,\n            "Otentikasi gagal"\n         ],\n         "Sorry, there was an error while trying to add ": [\n            null,\n            ""\n         ],\n         "This client does not allow presence subscriptions": [\n            null,\n            ""\n         ],\n         "Minimize this chat box": [\n            null,\n            ""\n         ],\n         "Minimized": [\n            null,\n            ""\n         ],\n         "This room is not anonymous": [\n            null,\n            "Ruangan ini tidak anonim"\n         ],\n         "This room now shows unavailable members": [\n            null,\n            "Ruangan ini menampilkan anggota yang tak tersedia"\n         ],\n         "This room does not show unavailable members": [\n            null,\n            "Ruangan ini tidak menampilkan anggota yang tak tersedia"\n         ],\n         "Room logging is now enabled": [\n            null,\n            "Pencatatan di ruangan ini sekarang dinyalakan"\n         ],\n         "Room logging is now disabled": [\n            null,\n            "Pencatatan di ruangan ini sekarang dimatikan"\n         ],\n         "This room is now semi-anonymous": [\n            null,\n            "Ruangan ini sekarang semi-anonim"\n         ],\n         "This room is now fully-anonymous": [\n            null,\n            "Ruangan ini sekarang anonim"\n         ],\n         "A new room has been created": [\n            null,\n            "Ruangan baru telah dibuat"\n         ],\n         "You have been banned from this room": [\n            null,\n            "Anda telah dicekal dari ruangan ini"\n         ],\n         "You have been kicked from this room": [\n            null,\n            "Anda telah ditendang dari ruangan ini"\n         ],\n         "You have been removed from this room because of an affiliation change": [\n            null,\n            "Anda telah dihapus dari ruangan ini karena perubahan afiliasi"\n         ],\n         "You have been removed from this room because the room has changed to members-only and you\'re not a member": [\n            null,\n            "Anda telah dihapus dari ruangan ini karena ruangan ini hanya terbuka untuk anggota dan anda bukan anggota"\n         ],\n         "You have been removed from this room because the MUC (Multi-user chat) service is being shut down.": [\n            null,\n            "Anda telah dihapus dari ruangan ini karena layanan MUC (Multi-user chat) telah dimatikan."\n         ],\n         "Message": [\n            null,\n            "Pesan"\n         ],\n         "Hide the list of occupants": [\n            null,\n            ""\n         ],\n         "Error: the \\"": [\n            null,\n            ""\n         ],\n         "Error: could not execute the command": [\n            null,\n            ""\n         ],\n         "Change user\'s affiliation to admin": [\n            null,\n            ""\n         ],\n         "Change user role to occupant": [\n            null,\n            ""\n         ],\n         "Grant membership to a user": [\n            null,\n            ""\n         ],\n         "Remove user\'s ability to post messages": [\n            null,\n            ""\n         ],\n         "Change your nickname": [\n            null,\n            ""\n         ],\n         "Grant moderator role to user": [\n            null,\n            ""\n         ],\n         "Revoke user\'s membership": [\n            null,\n            ""\n         ],\n         "Set room subject (alias for /subject)": [\n            null,\n            ""\n         ],\n         "Allow muted user to post messages": [\n            null,\n            ""\n         ],\n         "The nickname you chose is reserved or currently in use, please choose a different one.": [\n            null,\n            ""\n         ],\n         "Please choose your nickname": [\n            null,\n            ""\n         ],\n         "Nickname": [\n            null,\n            "Nama panggilan"\n         ],\n         "This chatroom requires a password": [\n            null,\n            "Ruangan ini membutuhkan kata sandi"\n         ],\n         "Password: ": [\n            null,\n            "Kata sandi: "\n         ],\n         "Submit": [\n            null,\n            "Kirim"\n         ],\n         "The reason given is: \\"%1$s\\".": [\n            null,\n            ""\n         ],\n         "The reason given is: \\"": [\n            null,\n            ""\n         ],\n         " has left the room. \\"": [\n            null,\n            ""\n         ],\n         " has joined the room. \\"": [\n            null,\n            ""\n         ],\n         " has joined the room.": [\n            null,\n            ""\n         ],\n         "Topic set by %1$s to: %2$s": [\n            null,\n            "Topik diganti oleh %1$s menjadi: %2$s"\n         ],\n         "Invite": [\n            null,\n            ""\n         ],\n         "Hidden": [\n            null,\n            "Tersembunyi"\n         ],\n         "Message archiving": [\n            null,\n            ""\n         ],\n         "Members only": [\n            null,\n            ""\n         ],\n         "Moderated": [\n            null,\n            "Dimoderasi"\n         ],\n         "Non-anonymous": [\n            null,\n            "Tidak anonim"\n         ],\n         "Persistent": [\n            null,\n            ""\n         ],\n         "Public": [\n            null,\n            "Umum"\n         ],\n         "Semi-anonymous": [\n            null,\n            "Semi-anonim"\n         ],\n         "Unmoderated": [\n            null,\n            "Tak dimoderasi"\n         ],\n         "Unsecured": [\n            null,\n            ""\n         ],\n         "Messages are archived on the server": [\n            null,\n            ""\n         ],\n         "All other room occupants can see your Jabber ID": [\n            null,\n            ""\n         ],\n         "This room persists even if it\'s unoccupied": [\n            null,\n            ""\n         ],\n         "Only moderators can see your Jabber ID": [\n            null,\n            ""\n         ],\n         "This room will disappear once the last person leaves": [\n            null,\n            ""\n         ],\n         "You are about to invite %1$s to the chat room \\"%2$s\\". ": [\n            null,\n            ""\n         ],\n         "You may optionally include a message, explaining the reason for the invitation.": [\n            null,\n            ""\n         ],\n         "Room name": [\n            null,\n            "Nama ruangan"\n         ],\n         "Server": [\n            null,\n            "Server"\n         ],\n         "Show rooms": [\n            null,\n            "Perlihatkan ruangan"\n         ],\n         "Rooms": [\n            null,\n            "Ruangan"\n         ],\n         "No rooms on %1$s": [\n            null,\n            "Tak ada ruangan di %1$s"\n         ],\n         "Rooms on %1$s": [\n            null,\n            "Ruangan di %1$s"\n         ],\n         "Description:": [\n            null,\n            "Keterangan:"\n         ],\n         "Occupants:": [\n            null,\n            "Penghuni:"\n         ],\n         "Features:": [\n            null,\n            "Fitur:"\n         ],\n         "Requires authentication": [\n            null,\n            "Membutuhkan otentikasi"\n         ],\n         "Requires an invitation": [\n            null,\n            "Membutuhkan undangan"\n         ],\n         "Open room": [\n            null,\n            "Ruangan terbuka"\n         ],\n         "Permanent room": [\n            null,\n            "Ruangan permanen"\n         ],\n         "Temporary room": [\n            null,\n            "Ruangan sementara"\n         ],\n         "%1$s has invited you to join a chat room: %2$s": [\n            null,\n            ""\n         ],\n         "%1$s has invited you to join a chat room: %2$s, and left the following reason: \\"%3$s\\"": [\n            null,\n            ""\n         ],\n         "Notification from %1$s": [\n            null,\n            ""\n         ],\n         "%1$s says": [\n            null,\n            ""\n         ],\n         "wants to be your contact": [\n            null,\n            ""\n         ],\n         "Re-establishing encrypted session": [\n            null,\n            "Menyambung kembali sesi terenkripsi"\n         ],\n         "Generating private key.": [\n            null,\n            ""\n         ],\n         "Your browser might become unresponsive.": [\n            null,\n            ""\n         ],\n         "Could not verify this user\'s identify.": [\n            null,\n            "Tak dapat melakukan verifikasi identitas pengguna ini."\n         ],\n         "Exchanging private key with contact.": [\n            null,\n            ""\n         ],\n         "Your messages are not encrypted anymore": [\n            null,\n            "Pesan anda tidak lagi terenkripsi"\n         ],\n         "Your message could not be sent": [\n            null,\n            "Pesan anda tak dapat dikirim"\n         ],\n         "We received an unencrypted message": [\n            null,\n            "Kami menerima pesan terenkripsi"\n         ],\n         "We received an unreadable encrypted message": [\n            null,\n            "Kami menerima pesan terenkripsi yang gagal dibaca"\n         ],\n         "Here are the fingerprints, please confirm them with %1$s, outside of this chat.\\n\\nFingerprint for you, %2$s: %3$s\\n\\nFingerprint for %1$s: %4$s\\n\\nIf you have confirmed that the fingerprints match, click OK, otherwise click Cancel.": [\n            null,\n            "Ini adalah sidik jari anda, konfirmasikan bersama mereka dengan %1$s, di luar percakapan ini.\\n\\nSidik jari untuk anda, %2$s: %3$s\\n\\nSidik jari untuk %1$s: %4$s\\n\\nJika anda bisa mengkonfirmasi sidik jadi cocok, klik Lanjutkan, jika tidak klik Batal."\n         ],\n         "What is your security question?": [\n            null,\n            "Apakah pertanyaan keamanan anda?"\n         ],\n         "What is the answer to the security question?": [\n            null,\n            "Apa jawaban dari pertanyaan keamanan tersebut?"\n         ],\n         "Invalid authentication scheme provided": [\n            null,\n            "Skema otentikasi salah"\n         ],\n         "Your messages are not encrypted. Click here to enable OTR encryption.": [\n            null,\n            "Pesan anda tak terenkripsi. Klik di sini untuk menyalakan enkripsi OTR."\n         ],\n         "End encrypted conversation": [\n            null,\n            "Sudahi percakapan terenkripsi"\n         ],\n         "Refresh encrypted conversation": [\n            null,\n            "Setel ulang percakapan terenkripsi"\n         ],\n         "Start encrypted conversation": [\n            null,\n            "Mulai sesi terenkripsi"\n         ],\n         "Verify with fingerprints": [\n            null,\n            "Verifikasi menggunakan sidik jari"\n         ],\n         "Verify with SMP": [\n            null,\n            "Verifikasi menggunakan SMP"\n         ],\n         "What\'s this?": [\n            null,\n            "Apakah ini?"\n         ],\n         "unencrypted": [\n            null,\n            "tak dienkripsi"\n         ],\n         "unverified": [\n            null,\n            "tak diverifikasi"\n         ],\n         "verified": [\n            null,\n            "diverifikasi"\n         ],\n         "finished": [\n            null,\n            "selesai"\n         ],\n         " e.g. conversejs.org": [\n            null,\n            ""\n         ],\n         "Your XMPP provider\'s domain name:": [\n            null,\n            ""\n         ],\n         "Fetch registration form": [\n            null,\n            ""\n         ],\n         "Tip: A list of public XMPP providers is available": [\n            null,\n            ""\n         ],\n         "here": [\n            null,\n            ""\n         ],\n         "Register": [\n            null,\n            ""\n         ],\n         "Sorry, the given provider does not support in band account registration. Please try with a different provider.": [\n            null,\n            ""\n         ],\n         "Requesting a registration form from the XMPP server": [\n            null,\n            ""\n         ],\n         "Something went wrong while establishing a connection with \\"%1$s\\". Are you sure it exists?": [\n            null,\n            ""\n         ],\n         "Now logging you in": [\n            null,\n            ""\n         ],\n         "Registered successfully": [\n            null,\n            ""\n         ],\n         "Return": [\n            null,\n            ""\n         ],\n         "The provider rejected your registration attempt. Please check the values you entered for correctness.": [\n            null,\n            ""\n         ],\n         "Retry": [\n            null,\n            ""\n         ],\n         "This contact is busy": [\n            null,\n            "Teman ini sedang sibuk"\n         ],\n         "This contact is online": [\n            null,\n            "Teman ini terhubung"\n         ],\n         "This contact is offline": [\n            null,\n            "Teman ini tidak terhubung"\n         ],\n         "This contact is unavailable": [\n            null,\n            "Teman ini tidak tersedia"\n         ],\n         "This contact is away for an extended period": [\n            null,\n            "Teman ini tidak di tempat untuk waktu yang lama"\n         ],\n         "This contact is away": [\n            null,\n            "Teman ini tidak di tempat"\n         ],\n         "Groups": [\n            null,\n            ""\n         ],\n         "My contacts": [\n            null,\n            "Teman saya"\n         ],\n         "Pending contacts": [\n            null,\n            "Teman yang menunggu"\n         ],\n         "Contact requests": [\n            null,\n            "Permintaan pertemanan"\n         ],\n         "Ungrouped": [\n            null,\n            ""\n         ],\n         "Filter": [\n            null,\n            ""\n         ],\n         "State": [\n            null,\n            ""\n         ],\n         "Any": [\n            null,\n            ""\n         ],\n         "Chatty": [\n            null,\n            ""\n         ],\n         "Extended Away": [\n            null,\n            ""\n         ],\n         "Click to remove this contact": [\n            null,\n            "Klik untuk menghapus teman ini"\n         ],\n         "Click to chat with this contact": [\n            null,\n            "Klik untuk mulai perbinjangan dengan teman ini"\n         ],\n         "Name": [\n            null,\n            ""\n         ],\n         "Sorry, there was an error while trying to remove ": [\n            null,\n            ""\n         ]\n      }\n   }\n}';});


define('text!it',[],function () { return '{\n   "domain": "converse",\n   "locale_data": {\n      "converse": {\n         "": {\n            "domain": "converse",\n            "plural_forms": "nplurals=2; plural=n != 1;",\n            "lang": "it"\n         },\n         "Bookmark this room": [\n            null,\n            "Salva questa stanza"\n         ],\n         "The name for this bookmark:": [\n            null,\n            "Nome per questo bookmark:"\n         ],\n         "Would you like this room to be automatically joined upon startup?": [\n            null,\n            "Vuoi collegarti automaticamente a questa stanza quando fai il login?"\n         ],\n         "What should your nickname for this room be?": [\n            null,\n            "Qual è il nickname per questa stanza?"\n         ],\n         "Save": [\n            null,\n            "Salva"\n         ],\n         "Cancel": [\n            null,\n            "Annulla"\n         ],\n         "Sorry, something went wrong while trying to save your bookmark.": [\n            null,\n            "Si è verificato un errore nel salvataggio del bookmark."\n         ],\n         "Click to toggle the bookmarks list": [\n            null,\n            "Clicca per aprire/chiudere la lista bookmarks"\n         ],\n         "Bookmarked Rooms": [\n            null,\n            "Stanza Salvate"\n         ],\n         "Are you sure you want to remove the bookmark \\"%1$s\\"?": [\n            null,\n            "Sei sicuro di voler rimuovere il segnalibro \\"%1$s\\"?"\n         ],\n         "Click to open this room": [\n            null,\n            "Clicca per aprire questa stanza"\n         ],\n         "Show more information on this room": [\n            null,\n            "Mostra più informazioni su questa stanza"\n         ],\n         "Remove this bookmark": [\n            null,\n            "Rimuovi questo bookmark"\n         ],\n         "You have unread messages": [\n            null,\n            "Hai messaggi non letti"\n         ],\n         "Close this chat box": [\n            null,\n            "Chiudi questa chat"\n         ],\n         "Personal message": [\n            null,\n            "Messaggio personale"\n         ],\n         "Send": [\n            null,\n            ""\n         ],\n         "me": [\n            null,\n            "me"\n         ],\n         "A very large message has been received.This might be due to an attack meant to degrade the chat performance.Output has been shortened.": [\n            null,\n            "Un grande messaggio è stato ricevuto. Questo potrebbe essere dovuto ad un attacco destinato a degradare le performance della chat. L\'output è stato accorciato."\n         ],\n         "Typing from another device": [\n            null,\n            ""\n         ],\n         "is typing": [\n            null,\n            "sta scrivendo"\n         ],\n         "Stopped typing on the other device": [\n            null,\n            ""\n         ],\n         "has stopped typing": [\n            null,\n            "ha smesso di scrivere"\n         ],\n         "has gone away": [\n            null,\n            "si è allontanato"\n         ],\n         "Show this menu": [\n            null,\n            "Mostra questo menu"\n         ],\n         "Write in the third person": [\n            null,\n            "Scrivi in terza persona"\n         ],\n         "Remove messages": [\n            null,\n            "Rimuovi messaggi"\n         ],\n         "Are you sure you want to clear the messages from this chat box?": [\n            null,\n            "Sei sicuro di volere pulire i messaggi da questo chat box?"\n         ],\n         "has gone offline": [\n            null,\n            "è andato offline"\n         ],\n         "is busy": [\n            null,\n            "è occupato"\n         ],\n         "Clear all messages": [\n            null,\n            "Pulisci tutti i messaggi"\n         ],\n         "Insert a smiley": [\n            null,\n            "Inserisci uno smiley"\n         ],\n         "Start a call": [\n            null,\n            "Inizia una chiamata"\n         ],\n         "Contacts": [\n            null,\n            "Contatti"\n         ],\n         "XMPP Username:": [\n            null,\n            "XMPP Username:"\n         ],\n         "Password:": [\n            null,\n            "Password:"\n         ],\n         "Click here to log in anonymously": [\n            null,\n            "Clicca per entrare anonimo"\n         ],\n         "Log In": [\n            null,\n            "Entra"\n         ],\n         "Username": [\n            null,\n            "Username"\n         ],\n         "user@server": [\n            null,\n            "user@server"\n         ],\n         "password": [\n            null,\n            "Password"\n         ],\n         "Sign in": [\n            null,\n            "Accesso"\n         ],\n         "I am %1$s": [\n            null,\n            "Sono %1$s"\n         ],\n         "Click here to write a custom status message": [\n            null,\n            "Clicca qui per scrivere un messaggio di stato personalizzato"\n         ],\n         "Click to change your chat status": [\n            null,\n            "Clicca per cambiare il tuo stato"\n         ],\n         "Custom status": [\n            null,\n            "Stato personalizzato"\n         ],\n         "online": [\n            null,\n            "in linea"\n         ],\n         "busy": [\n            null,\n            "occupato"\n         ],\n         "away for long": [\n            null,\n            "assente da molto"\n         ],\n         "away": [\n            null,\n            "assente"\n         ],\n         "offline": [\n            null,\n            "offline"\n         ],\n         "Online": [\n            null,\n            "In linea"\n         ],\n         "Busy": [\n            null,\n            "Occupato"\n         ],\n         "Away": [\n            null,\n            "Assente"\n         ],\n         "Offline": [\n            null,\n            "Non in linea"\n         ],\n         "Log out": [\n            null,\n            "Logo out"\n         ],\n         "Contact name": [\n            null,\n            "Nome del contatto"\n         ],\n         "Search": [\n            null,\n            "Cerca"\n         ],\n         "e.g. user@example.org": [\n            null,\n            "es. user@example.org"\n         ],\n         "Add": [\n            null,\n            "Aggiungi"\n         ],\n         "Click to add new chat contacts": [\n            null,\n            "Clicca per aggiungere nuovi contatti alla chat"\n         ],\n         "Add a contact": [\n            null,\n            "Aggiungi contatti"\n         ],\n         "No users found": [\n            null,\n            "Nessun utente trovato"\n         ],\n         "Click to add as a chat contact": [\n            null,\n            "Clicca per aggiungere il contatto alla chat"\n         ],\n         "Toggle chat": [\n            null,\n            "Attiva/disattiva chat"\n         ],\n         "Reconnecting": [\n            null,\n            "Riconnessione"\n         ],\n         "The connection has dropped, attempting to reconnect.": [\n            null,\n            "La connessione è caduta, attendi la riconnessione."\n         ],\n         "Connection error": [\n            null,\n            "Errore di connessione"\n         ],\n         "An error occurred while connecting to the chat server.": [\n            null,\n            "Si è verificato un errore durante la connessione al server."\n         ],\n         "Connecting": [\n            null,\n            "Connessione in corso"\n         ],\n         "Authenticating": [\n            null,\n            "Autenticazione in corso"\n         ],\n         "Authentication Failed": [\n            null,\n            "Autenticazione fallita"\n         ],\n         "Connection failed": [\n            null,\n            "Errore di connessione"\n         ],\n         "An error occurred while connecting to the chat server: ": [\n            null,\n            "Si è verificato un errore durante la connessione al server. "\n         ],\n         "Sorry, there was an error while trying to add ": [\n            null,\n            "Si è verificato un errore durante il tentativo di aggiunta "\n         ],\n         "This client does not allow presence subscriptions": [\n            null,\n            "Questo client non consente sottoscrizioni di presenza"\n         ],\n         "Click to hide these contacts": [\n            null,\n            "Clicca per nascondere questi contatti"\n         ],\n         "Close this box": [\n            null,\n            "Chiudi questo box"\n         ],\n         "Minimize this chat box": [\n            null,\n            "Riduci questo chat box"\n         ],\n         "Click to restore this chat": [\n            null,\n            "Clicca per ripristinare questa chat"\n         ],\n         "Minimized": [\n            null,\n            "Ridotto"\n         ],\n         "This room is not anonymous": [\n            null,\n            "Questa stanza non è anonima"\n         ],\n         "This room now shows unavailable members": [\n            null,\n            "Questa stanza mostra i membri non disponibili al momento"\n         ],\n         "This room does not show unavailable members": [\n            null,\n            "Questa stanza non mostra i membri non disponibili"\n         ],\n         "The room configuration has changed": [\n            null,\n            "La configurazione della stanza è cambiata"\n         ],\n         "Room logging is now enabled": [\n            null,\n            "La registrazione è abilitata nella stanza"\n         ],\n         "Room logging is now disabled": [\n            null,\n            "La registrazione è disabilitata nella stanza"\n         ],\n         "This room is now no longer anonymous": [\n            null,\n            "Questa stanza è non-anonima"\n         ],\n         "This room is now semi-anonymous": [\n            null,\n            "Questa stanza è semi-anonima"\n         ],\n         "This room is now fully-anonymous": [\n            null,\n            "Questa stanza è completamente-anonima"\n         ],\n         "A new room has been created": [\n            null,\n            "Una nuova stanza è stata creata"\n         ],\n         "You have been banned from this room": [\n            null,\n            "Sei stato bandito da questa stanza"\n         ],\n         "You have been kicked from this room": [\n            null,\n            "Sei stato espulso da questa stanza"\n         ],\n         "You have been removed from this room because of an affiliation change": [\n            null,\n            "Sei stato rimosso da questa stanza a causa di un cambio di affiliazione"\n         ],\n         "You have been removed from this room because the room has changed to members-only and you\'re not a member": [\n            null,\n            "Sei stato rimosso da questa stanza poiché ora la stanza accetta solo membri"\n         ],\n         "You have been removed from this room because the MUC (Multi-user chat) service is being shut down.": [\n            null,\n            "Sei stato rimosso da questa stanza poiché il servizio MUC (Chat multi utente) è in fase di spegnimento."\n         ],\n         "%1$s has been banned": [\n            null,\n            "%1$s è stato bannato"\n         ],\n         "%1$s\'s nickname has changed": [\n            null,\n            "%1$s nickname è cambiato"\n         ],\n         "%1$s has been kicked out": [\n            null,\n            "%1$s è stato espulso"\n         ],\n         "%1$s has been removed because of an affiliation change": [\n            null,\n            "%1$s è stato rimosso a causa di un cambio di affiliazione"\n         ],\n         "%1$s has been removed for not being a member": [\n            null,\n            "%1$s è stato rimosso in quanto non membro"\n         ],\n         "Your nickname has been automatically set to: %1$s": [\n            null,\n            "Il tuo nickname è stato cambiato automaticamente in: %1$s"\n         ],\n         "Your nickname has been changed to: %1$s": [\n            null,\n            "Il tuo nickname è stato cambiato: %1$s"\n         ],\n         "Message": [\n            null,\n            "Messaggio"\n         ],\n         "Close and leave this room": [\n            null,\n            "Chiudi e lascia questa stanza"\n         ],\n         "Configure this room": [\n            null,\n            "Configura questa stanza"\n         ],\n         "Hide the list of occupants": [\n            null,\n            "Nascondi la lista degli occupanti"\n         ],\n         "Error: the \\"": [\n            null,\n            "Errore: il \\""\n         ],\n         "Are you sure you want to clear the messages from this room?": [\n            null,\n            "Sei sicuro di voler pulire i messaggi da questa stanza?"\n         ],\n         "Error: could not execute the command": [\n            null,\n            "Errore: impossibile eseguire il comando"\n         ],\n         "Change user\'s affiliation to admin": [\n            null,\n            ""\n         ],\n         "Ban user from room": [\n            null,\n            "Bandisci utente dalla stanza"\n         ],\n         "Change user role to occupant": [\n            null,\n            ""\n         ],\n         "Kick user from room": [\n            null,\n            "Espelli utente dalla stanza"\n         ],\n         "Write in 3rd person": [\n            null,\n            "Scrivi in terza persona"\n         ],\n         "Grant membership to a user": [\n            null,\n            ""\n         ],\n         "Remove user\'s ability to post messages": [\n            null,\n            "Rimuovi la possibilità di inviare messaggi all\'utente"\n         ],\n         "Change your nickname": [\n            null,\n            "Cambia il tuo nickname"\n         ],\n         "Grant moderator role to user": [\n            null,\n            ""\n         ],\n         "Grant ownership of this room": [\n            null,\n            ""\n         ],\n         "Revoke user\'s membership": [\n            null,\n            ""\n         ],\n         "Set room subject": [\n            null,\n            "Cambia oggetto della stanza"\n         ],\n         "Set room subject (alias for /subject)": [\n            null,\n            "Imposta oggetto della stanza (alias per /subject)"\n         ],\n         "Allow muted user to post messages": [\n            null,\n            "Abilita l\'utente mutato ad inviare nuovamente messaggi"\n         ],\n         "The nickname you chose is reserved or currently in use, please choose a different one.": [\n            null,\n            "Il nickname scelto è riservato o attualmente in uso, indicane uno diverso."\n         ],\n         "Please choose your nickname": [\n            null,\n            "Scegli il tuo nickname"\n         ],\n         "Nickname": [\n            null,\n            "Soprannome"\n         ],\n         "Enter room": [\n            null,\n            "Entra nella stanza"\n         ],\n         "This chatroom requires a password": [\n            null,\n            "Questa stanza richiede una password"\n         ],\n         "Password: ": [\n            null,\n            "Password: "\n         ],\n         "Submit": [\n            null,\n            "Invia"\n         ],\n         "The reason given is: \\"": [\n            null,\n            "La ragione data è: \\""\n         ],\n         " has left the room. \\"": [\n            null,\n            " ha lasciato la stanza. \\""\n         ],\n         " has left the room": [\n            null,\n            " ha lasciato la stanza"\n         ],\n         " has joined the room. \\"": [\n            null,\n            " è entrato nella stanza. \\""\n         ],\n         " has joined the room.": [\n            null,\n            " è entrato nella stanza."\n         ],\n         "Topic set by %1$s to: %2$s": [\n            null,\n            "Topic impostato da %1$s a: %2$s"\n         ],\n         "Click to mention ": [\n            null,\n            "Clicca per citare "\n         ],\n         "This user is a moderator.": [\n            null,\n            "Questo utente è un moderatore."\n         ],\n         "This user can send messages in this room.": [\n            null,\n            "Questo utente può inviare messaggi in questa stanza."\n         ],\n         "This user can NOT send messages in this room.": [\n            null,\n            "Questo utente NON può inviare messaggi in questa stanza."\n         ],\n         "Occupants": [\n            null,\n            "Occupanti"\n         ],\n         "Invite": [\n            null,\n            "Invita"\n         ],\n         "Features": [\n            null,\n            "Impostazioni"\n         ],\n         "Hidden": [\n            null,\n            "Nascosta"\n         ],\n         "Message archiving": [\n            null,\n            "Archivio Messaggi"\n         ],\n         "Members only": [\n            null,\n            "Solo membri"\n         ],\n         "Moderated": [\n            null,\n            "Moderata"\n         ],\n         "Non-anonymous": [\n            null,\n            "Non-anonima"\n         ],\n         "Open": [\n            null,\n            "Aperta"\n         ],\n         "Password protected": [\n            null,\n            "Con Password"\n         ],\n         "Persistent": [\n            null,\n            "Persistente"\n         ],\n         "Public": [\n            null,\n            "Pubblica"\n         ],\n         "Semi-anonymous": [\n            null,\n            "Semi-anonima"\n         ],\n         "Temporary": [\n            null,\n            "Temporanea"\n         ],\n         "Unmoderated": [\n            null,\n            "Non moderata"\n         ],\n         "Unsecured": [\n            null,\n            "Non Sicura"\n         ],\n         "Messages are archived on the server": [\n            null,\n            "Messaggi sono archiviati sul server"\n         ],\n         "This room is restricted to members only": [\n            null,\n            "Questa stanza è ristretta ai soli membri"\n         ],\n         "This room is being moderated": [\n            null,\n            "Questa stanza è moderata"\n         ],\n         "All other room occupants can see your Jabber ID": [\n            null,\n            "Tutti gli occupanti della stanza possono vedere il tuo Jabber ID"\n         ],\n         "Anyone can join this room": [\n            null,\n            "Chiunque può collegarsi a questa stanza"\n         ],\n         "This room requires a password before entry": [\n            null,\n            "Questa stanza richiede una password"\n         ],\n         "This room persists even if it\'s unoccupied": [\n            null,\n            ""\n         ],\n         "Only moderators can see your Jabber ID": [\n            null,\n            "Solo il moderatore può vedere il tuo Jabber ID"\n         ],\n         "This room will disappear once the last person leaves": [\n            null,\n            ""\n         ],\n         "This room is not being moderated": [\n            null,\n            "Questa stanza non è moderata"\n         ],\n         "This room does not require a password upon entry": [\n            null,\n            "Questa stanza non richiede una password"\n         ],\n         "You are about to invite %1$s to the chat room \\"%2$s\\". ": [\n            null,\n            "Stai per invitare %1$s nella stanza \\"%2$s\\". "\n         ],\n         "You may optionally include a message, explaining the reason for the invitation.": [\n            null,\n            "Puoi includere un messaggio per spiegare le ragioni dell\'invito."\n         ],\n         "Room name": [\n            null,\n            "Nome stanza"\n         ],\n         "Server": [\n            null,\n            "Server"\n         ],\n         "Join Room": [\n            null,\n            "Entra nella Stanza"\n         ],\n         "Show rooms": [\n            null,\n            "Mostra stanze"\n         ],\n         "Rooms": [\n            null,\n            "Stanze"\n         ],\n         "No rooms on %1$s": [\n            null,\n            "Nessuna stanza su %1$s"\n         ],\n         "Rooms on %1$s": [\n            null,\n            "Stanze su %1$s"\n         ],\n         "Description:": [\n            null,\n            "Descrizione:"\n         ],\n         "Occupants:": [\n            null,\n            "Utenti presenti:"\n         ],\n         "Features:": [\n            null,\n            "Funzionalità:"\n         ],\n         "Requires authentication": [\n            null,\n            "Richiede autenticazione"\n         ],\n         "Requires an invitation": [\n            null,\n            "Richiede un invito"\n         ],\n         "Open room": [\n            null,\n            "Stanza aperta"\n         ],\n         "Permanent room": [\n            null,\n            "Stanza permanente"\n         ],\n         "Temporary room": [\n            null,\n            "Stanza temporanea"\n         ],\n         "%1$s has invited you to join a chat room: %2$s": [\n            null,\n            "%1$s ti ha invitato a partecipare a una chat room: %2$s"\n         ],\n         "%1$s has invited you to join a chat room: %2$s, and left the following reason: \\"%3$s\\"": [\n            null,\n            "%1$s ti ha invitato a partecipare a una chat room: %2$s, e ha lasciato il seguente motivo: “%3$s”"\n         ],\n         "Notification from %1$s": [\n            null,\n            "Notifica da %1$s"\n         ],\n         "%1$s says": [\n            null,\n            "%1$s dice"\n         ],\n         "has come online": [\n            null,\n            "è online"\n         ],\n         "wants to be your contact": [\n            null,\n            "vuole essere un tuo contatto"\n         ],\n         "Re-establishing encrypted session": [\n            null,\n            "Ristabilisci sessione criptata"\n         ],\n         "Generating private key.": [\n            null,\n            "Generazione chiave private in corso."\n         ],\n         "Your browser might become unresponsive.": [\n            null,\n            "Il tuo browser potrebbe bloccarsi."\n         ],\n         "Authentication request from %1$s\\n\\nYour chat contact is attempting to verify your identity, by asking you the question below.\\n\\n%2$s": [\n            null,\n            ""\n         ],\n         "Could not verify this user\'s identify.": [\n            null,\n            "Non posso verificare l\'identità dell\'utente."\n         ],\n         "Exchanging private key with contact.": [\n            null,\n            "Scambio la chiave privata col contatto."\n         ],\n         "Your messages are not encrypted anymore": [\n            null,\n            "I tuoi messaggi non sono più criptati"\n         ],\n         "Your messages are now encrypted but your contact\'s identity has not been verified.": [\n            null,\n            "I tuoi messaggi sono ora criptati ma l\'identità del tuo contatto non è verificata."\n         ],\n         "Your contact\'s identify has been verified.": [\n            null,\n            "L\'identità del contatto è verificata."\n         ],\n         "Your contact has ended encryption on their end, you should do the same.": [\n            null,\n            ""\n         ],\n         "Your message could not be sent": [\n            null,\n            "Il tuo messaggio non può essere spedito"\n         ],\n         "We received an unencrypted message": [\n            null,\n            "Abbiamo ricevuto un messaggio non criptato"\n         ],\n         "We received an unreadable encrypted message": [\n            null,\n            "Abbiamo ricevuto un messaggio criptato non leggibile"\n         ],\n         "Here are the fingerprints, please confirm them with %1$s, outside of this chat.\\n\\nFingerprint for you, %2$s: %3$s\\n\\nFingerprint for %1$s: %4$s\\n\\nIf you have confirmed that the fingerprints match, click OK, otherwise click Cancel.": [\n            null,\n            ""\n         ],\n         "You will be prompted to provide a security question and then an answer to that question.\\n\\nYour contact will then be prompted the same question and if they type the exact same answer (case sensitive), their identity will be verified.": [\n            null,\n            ""\n         ],\n         "What is your security question?": [\n            null,\n            "Qual è la tua domanda di sicurezza?"\n         ],\n         "What is the answer to the security question?": [\n            null,\n            "Qual è la risposta alla domanda di sicurezza?"\n         ],\n         "Invalid authentication scheme provided": [\n            null,\n            "Schema di autenticazione non valido"\n         ],\n         "Your messages are not encrypted. Click here to enable OTR encryption.": [\n            null,\n            "I tuoi messaggi non sono criptati. Clicca qui per attivare OTR encryption."\n         ],\n         "Your messages are encrypted, but your contact has not been verified.": [\n            null,\n            "I tuoi messaggi sono criptati ma il tuo contatto non è verificato."\n         ],\n         "Your messages are encrypted and your contact verified.": [\n            null,\n            "Il tuoi messaggi sono criptati e il tuo contatto verificato."\n         ],\n         "Your contact has closed their end of the private session, you should do the same": [\n            null,\n            ""\n         ],\n         "End encrypted conversation": [\n            null,\n            "Fine della conversazione criptata"\n         ],\n         "Refresh encrypted conversation": [\n            null,\n            "Aggiorna conversazione criptata"\n         ],\n         "Start encrypted conversation": [\n            null,\n            "Inizio conversazione criptata"\n         ],\n         "Verify with fingerprints": [\n            null,\n            "Verifica con fingerprints"\n         ],\n         "Verify with SMP": [\n            null,\n            "Verifica con SMP"\n         ],\n         "What\'s this?": [\n            null,\n            "Che cos\'è?"\n         ],\n         "unencrypted": [\n            null,\n            "non criptato"\n         ],\n         "unverified": [\n            null,\n            "non verificato"\n         ],\n         "verified": [\n            null,\n            "verificato"\n         ],\n         "finished": [\n            null,\n            "finito"\n         ],\n         " e.g. conversejs.org": [\n            null,\n            " es. conversejs.org"\n         ],\n         "Your XMPP provider\'s domain name:": [\n            null,\n            "Nome del dominio del provider XMPP:"\n         ],\n         "Fetch registration form": [\n            null,\n            "Modulo di registrazione"\n         ],\n         "Tip: A list of public XMPP providers is available": [\n            null,\n            "Suggerimento: È disponibile un elenco di provider XMPP pubblici"\n         ],\n         "here": [\n            null,\n            "qui"\n         ],\n         "Register": [\n            null,\n            "Registra"\n         ],\n         "Sorry, the given provider does not support in band account registration. Please try with a different provider.": [\n            null,\n            "Siamo spiacenti, il provider specificato non supporta la registrazione di account. Si prega di provare con un altro provider."\n         ],\n         "Requesting a registration form from the XMPP server": [\n            null,\n            "Sto richiedendo un modulo di registrazione al server XMPP"\n         ],\n         "Something went wrong while establishing a connection with \\"%1$s\\". Are you sure it exists?": [\n            null,\n            "Qualcosa è andato storto durante la connessione con “%1$s”. Sei sicuro che esiste?"\n         ],\n         "Now logging you in": [\n            null,\n            ""\n         ],\n         "Registered successfully": [\n            null,\n            "Registrazione riuscita"\n         ],\n         "Return": [\n            null,\n            "Ritorna"\n         ],\n         "The provider rejected your registration attempt. Please check the values you entered for correctness.": [\n            null,\n            "Il provider ha respinto il tentativo di registrazione. Controlla i dati inseriti."\n         ],\n         "Retry": [\n            null,\n            ""\n         ],\n         "This contact is busy": [\n            null,\n            "Questo contatto è occupato"\n         ],\n         "This contact is online": [\n            null,\n            "Questo contatto è online"\n         ],\n         "This contact is offline": [\n            null,\n            "Questo contatto è offline"\n         ],\n         "This contact is unavailable": [\n            null,\n            "Questo contatto non è disponibile"\n         ],\n         "This contact is away for an extended period": [\n            null,\n            "Il contatto è away da un lungo periodo"\n         ],\n         "This contact is away": [\n            null,\n            "Questo contatto è away"\n         ],\n         "Groups": [\n            null,\n            "Gruppi"\n         ],\n         "My contacts": [\n            null,\n            "I miei contatti"\n         ],\n         "Pending contacts": [\n            null,\n            "Contatti in attesa"\n         ],\n         "Contact requests": [\n            null,\n            "Richieste dei contatti"\n         ],\n         "Ungrouped": [\n            null,\n            "Senza Gruppo"\n         ],\n         "Filter": [\n            null,\n            "Filtri"\n         ],\n         "State": [\n            null,\n            "Stato"\n         ],\n         "Any": [\n            null,\n            "Ogni"\n         ],\n         "Chatty": [\n            null,\n            "Chatty"\n         ],\n         "Extended Away": [\n            null,\n            "Away estesa"\n         ],\n         "Click to remove this contact": [\n            null,\n            "Clicca per rimuovere questo contatto"\n         ],\n         "Click to accept this contact request": [\n            null,\n            "Clicca per accettare questa richiesta di contatto"\n         ],\n         "Click to decline this contact request": [\n            null,\n            "Clicca per rifiutare questa richiesta di contatto"\n         ],\n         "Click to chat with this contact": [\n            null,\n            "Clicca per parlare con questo contatto"\n         ],\n         "Name": [\n            null,\n            "Nome"\n         ],\n         "Are you sure you want to remove this contact?": [\n            null,\n            "Sei sicuro di voler rimuovere questo contatto?"\n         ],\n         "Sorry, there was an error while trying to remove ": [\n            null,\n            "Si è verificato un errore durante il tentativo di rimozione "\n         ],\n         "Are you sure you want to decline this contact request?": [\n            null,\n            "Sei sicuro dirifiutare questa richiesta di contatto?"\n         ]\n      }\n   }\n}';});


define('text!ja',[],function () { return '{\n   "domain": "converse",\n   "locale_data": {\n      "converse": {\n         "": {\n            "domain": "converse",\n            "plural_forms": "nplurals=1; plural=0;",\n            "lang": "JA"\n         },\n         "Bookmark this room": [\n            null,\n            ""\n         ],\n         "The name for this bookmark:": [\n            null,\n            ""\n         ],\n         "Would you like this room to be automatically joined upon startup?": [\n            null,\n            ""\n         ],\n         "What should your nickname for this room be?": [\n            null,\n            ""\n         ],\n         "Save": [\n            null,\n            "保存"\n         ],\n         "Cancel": [\n            null,\n            "キャンセル"\n         ],\n         "Sorry, something went wrong while trying to save your bookmark.": [\n            null,\n            ""\n         ],\n         "Bookmarked Rooms": [\n            null,\n            ""\n         ],\n         "Click to open this room": [\n            null,\n            "クリックしてこの談話室を開く"\n         ],\n         "Show more information on this room": [\n            null,\n            "この談話室についての詳細を見る"\n         ],\n         "Remove this bookmark": [\n            null,\n            ""\n         ],\n         "Personal message": [\n            null,\n            "私信"\n         ],\n         "Send": [\n            null,\n            ""\n         ],\n         "me": [\n            null,\n            "私"\n         ],\n         "A very large message has been received.This might be due to an attack meant to degrade the chat performance.Output has been shortened.": [\n            null,\n            ""\n         ],\n         "Typing from another device": [\n            null,\n            ""\n         ],\n         "is typing": [\n            null,\n            ""\n         ],\n         "Stopped typing on the other device": [\n            null,\n            ""\n         ],\n         "has stopped typing": [\n            null,\n            ""\n         ],\n         "Show this menu": [\n            null,\n            "このメニューを表示"\n         ],\n         "Write in the third person": [\n            null,\n            "第三者に書く"\n         ],\n         "Remove messages": [\n            null,\n            "メッセージを削除"\n         ],\n         "Are you sure you want to clear the messages from this chat box?": [\n            null,\n            ""\n         ],\n         "Insert a smiley": [\n            null,\n            ""\n         ],\n         "Start a call": [\n            null,\n            ""\n         ],\n         "Contacts": [\n            null,\n            "相手先"\n         ],\n         "Password:": [\n            null,\n            "パスワード:"\n         ],\n         "Log In": [\n            null,\n            "ログイン"\n         ],\n         "user@server": [\n            null,\n            ""\n         ],\n         "Sign in": [\n            null,\n            "サインイン"\n         ],\n         "I am %1$s": [\n            null,\n            "私はいま %1$s"\n         ],\n         "Click here to write a custom status message": [\n            null,\n            "状況メッセージを入力するには、ここをクリック"\n         ],\n         "Click to change your chat status": [\n            null,\n            "クリックして、在席状況を変更"\n         ],\n         "Custom status": [\n            null,\n            "独自の在席状況"\n         ],\n         "online": [\n            null,\n            "在席"\n         ],\n         "busy": [\n            null,\n            "取り込み中"\n         ],\n         "away for long": [\n            null,\n            "不在"\n         ],\n         "away": [\n            null,\n            "離席中"\n         ],\n         "Online": [\n            null,\n            "オンライン"\n         ],\n         "Busy": [\n            null,\n            "取り込み中"\n         ],\n         "Away": [\n            null,\n            "離席中"\n         ],\n         "Offline": [\n            null,\n            "オフライン"\n         ],\n         "Contact name": [\n            null,\n            "名前"\n         ],\n         "Search": [\n            null,\n            "検索"\n         ],\n         "e.g. user@example.org": [\n            null,\n            ""\n         ],\n         "Add": [\n            null,\n            "追加"\n         ],\n         "Click to add new chat contacts": [\n            null,\n            "クリックして新しいチャットの相手先を追加"\n         ],\n         "Add a contact": [\n            null,\n            "相手先を追加"\n         ],\n         "No users found": [\n            null,\n            "ユーザーが見つかりません"\n         ],\n         "Click to add as a chat contact": [\n            null,\n            "クリックしてチャットの相手先として追加"\n         ],\n         "Toggle chat": [\n            null,\n            ""\n         ],\n         "The connection has dropped, attempting to reconnect.": [\n            null,\n            ""\n         ],\n         "Connecting": [\n            null,\n            "接続中です"\n         ],\n         "Authenticating": [\n            null,\n            "認証中"\n         ],\n         "Authentication Failed": [\n            null,\n            "認証に失敗"\n         ],\n         "Sorry, there was an error while trying to add ": [\n            null,\n            ""\n         ],\n         "This client does not allow presence subscriptions": [\n            null,\n            ""\n         ],\n         "Minimize this chat box": [\n            null,\n            ""\n         ],\n         "Minimized": [\n            null,\n            ""\n         ],\n         "This room is not anonymous": [\n            null,\n            "この談話室は非匿名です"\n         ],\n         "This room now shows unavailable members": [\n            null,\n            "この談話室はメンバー以外にも見えます"\n         ],\n         "This room does not show unavailable members": [\n            null,\n            "この談話室はメンバー以外には見えません"\n         ],\n         "Room logging is now enabled": [\n            null,\n            "談話室の記録を取りはじめます"\n         ],\n         "Room logging is now disabled": [\n            null,\n            "談話室の記録を止めます"\n         ],\n         "This room is now semi-anonymous": [\n            null,\n            "この談話室はただいま半匿名です"\n         ],\n         "This room is now fully-anonymous": [\n            null,\n            "この談話室はただいま匿名です"\n         ],\n         "A new room has been created": [\n            null,\n            "新しい談話室が作成されました"\n         ],\n         "You have been banned from this room": [\n            null,\n            "この談話室から締め出されました"\n         ],\n         "You have been kicked from this room": [\n            null,\n            "この談話室から蹴り出されました"\n         ],\n         "You have been removed from this room because of an affiliation change": [\n            null,\n            "分掌の変更のため、この談話室から削除されました"\n         ],\n         "You have been removed from this room because the room has changed to members-only and you\'re not a member": [\n            null,\n            "談話室がメンバー制に変更されました。メンバーではないため、この談話室から削除されました"\n         ],\n         "You have been removed from this room because the MUC (Multi-user chat) service is being shut down.": [\n            null,\n            "MUC(グループチャット)のサービスが停止したため、この談話室から削除されました。"\n         ],\n         "Message": [\n            null,\n            "メッセージ"\n         ],\n         "Hide the list of occupants": [\n            null,\n            ""\n         ],\n         "Error: the \\"": [\n            null,\n            ""\n         ],\n         "Error: could not execute the command": [\n            null,\n            ""\n         ],\n         "Change user\'s affiliation to admin": [\n            null,\n            ""\n         ],\n         "Change user role to occupant": [\n            null,\n            ""\n         ],\n         "Grant membership to a user": [\n            null,\n            ""\n         ],\n         "Remove user\'s ability to post messages": [\n            null,\n            ""\n         ],\n         "Change your nickname": [\n            null,\n            ""\n         ],\n         "Grant moderator role to user": [\n            null,\n            ""\n         ],\n         "Revoke user\'s membership": [\n            null,\n            ""\n         ],\n         "Set room subject (alias for /subject)": [\n            null,\n            ""\n         ],\n         "Allow muted user to post messages": [\n            null,\n            ""\n         ],\n         "The nickname you chose is reserved or currently in use, please choose a different one.": [\n            null,\n            ""\n         ],\n         "Please choose your nickname": [\n            null,\n            ""\n         ],\n         "Nickname": [\n            null,\n            "ニックネーム"\n         ],\n         "This chatroom requires a password": [\n            null,\n            "この談話室にはパスワードが必要です"\n         ],\n         "Password: ": [\n            null,\n            "パスワード:"\n         ],\n         "Submit": [\n            null,\n            "送信"\n         ],\n         "The reason given is: \\"%1$s\\".": [\n            null,\n            ""\n         ],\n         "The reason given is: \\"": [\n            null,\n            ""\n         ],\n         " has left the room. \\"": [\n            null,\n            ""\n         ],\n         " has joined the room. \\"": [\n            null,\n            ""\n         ],\n         " has joined the room.": [\n            null,\n            ""\n         ],\n         "Topic set by %1$s to: %2$s": [\n            null,\n            "%1$s が話題を設定しました: %2$s"\n         ],\n         "Invite": [\n            null,\n            ""\n         ],\n         "Hidden": [\n            null,\n            "非表示"\n         ],\n         "Message archiving": [\n            null,\n            ""\n         ],\n         "Members only": [\n            null,\n            ""\n         ],\n         "Moderated": [\n            null,\n            "発言制限"\n         ],\n         "Non-anonymous": [\n            null,\n            "非匿名"\n         ],\n         "Persistent": [\n            null,\n            ""\n         ],\n         "Public": [\n            null,\n            "公開談話室"\n         ],\n         "Semi-anonymous": [\n            null,\n            "半匿名"\n         ],\n         "Unmoderated": [\n            null,\n            "発言制限なし"\n         ],\n         "Unsecured": [\n            null,\n            ""\n         ],\n         "Messages are archived on the server": [\n            null,\n            ""\n         ],\n         "All other room occupants can see your Jabber ID": [\n            null,\n            ""\n         ],\n         "This room persists even if it\'s unoccupied": [\n            null,\n            ""\n         ],\n         "Only moderators can see your Jabber ID": [\n            null,\n            ""\n         ],\n         "This room will disappear once the last person leaves": [\n            null,\n            ""\n         ],\n         "You are about to invite %1$s to the chat room \\"%2$s\\". ": [\n            null,\n            ""\n         ],\n         "You may optionally include a message, explaining the reason for the invitation.": [\n            null,\n            ""\n         ],\n         "Room name": [\n            null,\n            "談話室の名前"\n         ],\n         "Server": [\n            null,\n            "サーバー"\n         ],\n         "Show rooms": [\n            null,\n            "談話室一覧を見る"\n         ],\n         "Rooms": [\n            null,\n            "談話室"\n         ],\n         "No rooms on %1$s": [\n            null,\n            "%1$s に談話室はありません"\n         ],\n         "Rooms on %1$s": [\n            null,\n            "%1$s の談話室一覧"\n         ],\n         "Description:": [\n            null,\n            "説明: "\n         ],\n         "Occupants:": [\n            null,\n            "入室者:"\n         ],\n         "Features:": [\n            null,\n            "特徴:"\n         ],\n         "Requires authentication": [\n            null,\n            "認証の要求"\n         ],\n         "Requires an invitation": [\n            null,\n            "招待の要求"\n         ],\n         "Open room": [\n            null,\n            "開放談話室"\n         ],\n         "Permanent room": [\n            null,\n            "常設談話室"\n         ],\n         "Temporary room": [\n            null,\n            "臨時談話室"\n         ],\n         "%1$s has invited you to join a chat room: %2$s": [\n            null,\n            ""\n         ],\n         "%1$s has invited you to join a chat room: %2$s, and left the following reason: \\"%3$s\\"": [\n            null,\n            ""\n         ],\n         "Notification from %1$s": [\n            null,\n            ""\n         ],\n         "%1$s says": [\n            null,\n            ""\n         ],\n         "wants to be your contact": [\n            null,\n            ""\n         ],\n         "Re-establishing encrypted session": [\n            null,\n            "暗号化セッションの再接続"\n         ],\n         "Generating private key.": [\n            null,\n            ""\n         ],\n         "Your browser might become unresponsive.": [\n            null,\n            ""\n         ],\n         "Could not verify this user\'s identify.": [\n            null,\n            "このユーザーの本人性を検証できませんでした。"\n         ],\n         "Exchanging private key with contact.": [\n            null,\n            ""\n         ],\n         "Your messages are not encrypted anymore": [\n            null,\n            "メッセージはもう暗号化されません"\n         ],\n         "Your message could not be sent": [\n            null,\n            "メッセージを送信できませんでした"\n         ],\n         "We received an unencrypted message": [\n            null,\n            "暗号化されていないメッセージを受信しました"\n         ],\n         "We received an unreadable encrypted message": [\n            null,\n            "読めない暗号化メッセージを受信しました"\n         ],\n         "Here are the fingerprints, please confirm them with %1$s, outside of this chat.\\n\\nFingerprint for you, %2$s: %3$s\\n\\nFingerprint for %1$s: %4$s\\n\\nIf you have confirmed that the fingerprints match, click OK, otherwise click Cancel.": [\n            null,\n            "これは鍵指紋です。チャット以外の方法でこれらを %1$s と確認してください。\\n\\nあなた %2$s の鍵指紋: %3$s\\n\\n%1$s の鍵指紋: %4$s\\n\\n確認して、鍵指紋が正しければ「OK」を、正しくなければ「キャンセル」をクリックしてください。"\n         ],\n         "What is your security question?": [\n            null,\n            "秘密の質問はなんですか?"\n         ],\n         "What is the answer to the security question?": [\n            null,\n            "秘密の質問の答はなんですか?"\n         ],\n         "Invalid authentication scheme provided": [\n            null,\n            "認証の方式が正しくありません"\n         ],\n         "Your messages are not encrypted. Click here to enable OTR encryption.": [\n            null,\n            "メッセージは暗号化されません。OTR 暗号化を有効にするにはここをクリックしてください。"\n         ],\n         "End encrypted conversation": [\n            null,\n            "暗号化された会話を終了"\n         ],\n         "Refresh encrypted conversation": [\n            null,\n            "暗号化された会話をリフレッシュ"\n         ],\n         "Start encrypted conversation": [\n            null,\n            "暗号化された会話を開始"\n         ],\n         "Verify with fingerprints": [\n            null,\n            "鍵指紋で検証"\n         ],\n         "Verify with SMP": [\n            null,\n            "SMP で検証"\n         ],\n         "What\'s this?": [\n            null,\n            "これは何ですか?"\n         ],\n         "unencrypted": [\n            null,\n            "暗号化されていません"\n         ],\n         "unverified": [\n            null,\n            "検証されていません"\n         ],\n         "verified": [\n            null,\n            "検証されました"\n         ],\n         "finished": [\n            null,\n            "完了"\n         ],\n         " e.g. conversejs.org": [\n            null,\n            ""\n         ],\n         "Your XMPP provider\'s domain name:": [\n            null,\n            ""\n         ],\n         "Fetch registration form": [\n            null,\n            ""\n         ],\n         "Tip: A list of public XMPP providers is available": [\n            null,\n            ""\n         ],\n         "here": [\n            null,\n            ""\n         ],\n         "Register": [\n            null,\n            ""\n         ],\n         "Sorry, the given provider does not support in band account registration. Please try with a different provider.": [\n            null,\n            ""\n         ],\n         "Requesting a registration form from the XMPP server": [\n            null,\n            ""\n         ],\n         "Something went wrong while establishing a connection with \\"%1$s\\". Are you sure it exists?": [\n            null,\n            ""\n         ],\n         "Now logging you in": [\n            null,\n            ""\n         ],\n         "Registered successfully": [\n            null,\n            ""\n         ],\n         "Return": [\n            null,\n            ""\n         ],\n         "The provider rejected your registration attempt. Please check the values you entered for correctness.": [\n            null,\n            ""\n         ],\n         "Retry": [\n            null,\n            ""\n         ],\n         "This contact is busy": [\n            null,\n            "この相手先は取り込み中です"\n         ],\n         "This contact is online": [\n            null,\n            "この相手先は在席しています"\n         ],\n         "This contact is offline": [\n            null,\n            "この相手先はオフラインです"\n         ],\n         "This contact is unavailable": [\n            null,\n            "この相手先は不通です"\n         ],\n         "This contact is away for an extended period": [\n            null,\n            "この相手先は不在です"\n         ],\n         "This contact is away": [\n            null,\n            "この相手先は離席中です"\n         ],\n         "Groups": [\n            null,\n            ""\n         ],\n         "My contacts": [\n            null,\n            "相手先一覧"\n         ],\n         "Pending contacts": [\n            null,\n            "保留中の相手先"\n         ],\n         "Contact requests": [\n            null,\n            "会話に呼び出し"\n         ],\n         "Ungrouped": [\n            null,\n            ""\n         ],\n         "Filter": [\n            null,\n            ""\n         ],\n         "State": [\n            null,\n            ""\n         ],\n         "Any": [\n            null,\n            ""\n         ],\n         "Chatty": [\n            null,\n            ""\n         ],\n         "Extended Away": [\n            null,\n            ""\n         ],\n         "Click to remove this contact": [\n            null,\n            "クリックしてこの相手先を削除"\n         ],\n         "Click to chat with this contact": [\n            null,\n            "クリックしてこの相手先とチャット"\n         ],\n         "Name": [\n            null,\n            ""\n         ],\n         "Sorry, there was an error while trying to remove ": [\n            null,\n            ""\n         ]\n      }\n   }\n}';});


define('text!nb',[],function () { return '{\n   "domain": "converse",\n   "locale_data": {\n      "converse": {\n         "": {\n            "domain": "converse",\n            "plural_forms": "nplurals=2; plural=(n != 1);",\n            "lang": "nb"\n         },\n         "Bookmark this room": [\n            null,\n            ""\n         ],\n         "The name for this bookmark:": [\n            null,\n            ""\n         ],\n         "Would you like this room to be automatically joined upon startup?": [\n            null,\n            ""\n         ],\n         "What should your nickname for this room be?": [\n            null,\n            ""\n         ],\n         "Save": [\n            null,\n            "Lagre"\n         ],\n         "Cancel": [\n            null,\n            "Avbryt"\n         ],\n         "Sorry, something went wrong while trying to save your bookmark.": [\n            null,\n            ""\n         ],\n         "Bookmarked Rooms": [\n            null,\n            ""\n         ],\n         "Click to open this room": [\n            null,\n            "Klikk for å åpne dette rommet"\n         ],\n         "Show more information on this room": [\n            null,\n            "Vis mer informasjon om dette rommet"\n         ],\n         "Remove this bookmark": [\n            null,\n            ""\n         ],\n         "Personal message": [\n            null,\n            "Personlig melding"\n         ],\n         "Send": [\n            null,\n            ""\n         ],\n         "me": [\n            null,\n            "meg"\n         ],\n         "A very large message has been received.This might be due to an attack meant to degrade the chat performance.Output has been shortened.": [\n            null,\n            ""\n         ],\n         "Typing from another device": [\n            null,\n            ""\n         ],\n         "is typing": [\n            null,\n            "skriver"\n         ],\n         "Stopped typing on the other device": [\n            null,\n            ""\n         ],\n         "has stopped typing": [\n            null,\n            "har stoppet å skrive"\n         ],\n         "Show this menu": [\n            null,\n            "Viser denne menyen"\n         ],\n         "Write in the third person": [\n            null,\n            "Skriv i tredjeperson"\n         ],\n         "Remove messages": [\n            null,\n            "Fjern meldinger"\n         ],\n         "Are you sure you want to clear the messages from this chat box?": [\n            null,\n            "Er du sikker på at du vil fjerne meldingene fra denne meldingsboksen?"\n         ],\n         "Clear all messages": [\n            null,\n            "Fjern alle meldinger"\n         ],\n         "Insert a smiley": [\n            null,\n            ""\n         ],\n         "Start a call": [\n            null,\n            "Start en samtale"\n         ],\n         "Contacts": [\n            null,\n            "Kontakter"\n         ],\n         "XMPP Username:": [\n            null,\n            "XMPP Brukernavn:"\n         ],\n         "Password:": [\n            null,\n            "Passord:"\n         ],\n         "Log In": [\n            null,\n            "Logg inn"\n         ],\n         "user@server": [\n            null,\n            ""\n         ],\n         "Sign in": [\n            null,\n            "Innlogging"\n         ],\n         "I am %1$s": [\n            null,\n            "Jeg er %1$s"\n         ],\n         "Click here to write a custom status message": [\n            null,\n            "Klikk her for å skrive en personlig statusmelding"\n         ],\n         "Click to change your chat status": [\n            null,\n            "Klikk for å endre din meldingsstatus"\n         ],\n         "Custom status": [\n            null,\n            "Personlig status"\n         ],\n         "online": [\n            null,\n            "pålogget"\n         ],\n         "busy": [\n            null,\n            "opptatt"\n         ],\n         "away for long": [\n            null,\n            "borte lenge"\n         ],\n         "away": [\n            null,\n            "borte"\n         ],\n         "Online": [\n            null,\n            "Pålogget"\n         ],\n         "Busy": [\n            null,\n            "Opptatt"\n         ],\n         "Away": [\n            null,\n            "Borte"\n         ],\n         "Offline": [\n            null,\n            "Avlogget"\n         ],\n         "Log out": [\n            null,\n            "Logg Av"\n         ],\n         "Contact name": [\n            null,\n            "Kontaktnavn"\n         ],\n         "Search": [\n            null,\n            "Søk"\n         ],\n         "e.g. user@example.org": [\n            null,\n            ""\n         ],\n         "Add": [\n            null,\n            "Legg Til"\n         ],\n         "Click to add new chat contacts": [\n            null,\n            "Klikk for å legge til nye meldingskontakter"\n         ],\n         "Add a contact": [\n            null,\n            "Legg til en Kontakt"\n         ],\n         "No users found": [\n            null,\n            "Ingen brukere funnet"\n         ],\n         "Click to add as a chat contact": [\n            null,\n            "Klikk for å legge til som meldingskontakt"\n         ],\n         "Toggle chat": [\n            null,\n            "Endre chatten"\n         ],\n         "Reconnecting": [\n            null,\n            "Kobler til igjen"\n         ],\n         "The connection has dropped, attempting to reconnect.": [\n            null,\n            ""\n         ],\n         "Connecting": [\n            null,\n            "Kobler til"\n         ],\n         "Authenticating": [\n            null,\n            "Godkjenner"\n         ],\n         "Authentication Failed": [\n            null,\n            "Godkjenning mislyktes"\n         ],\n         "Sorry, there was an error while trying to add ": [\n            null,\n            ""\n         ],\n         "This client does not allow presence subscriptions": [\n            null,\n            ""\n         ],\n         "Click to hide these contacts": [\n            null,\n            "Klikk for å skjule disse kontaktene"\n         ],\n         "Minimize this chat box": [\n            null,\n            ""\n         ],\n         "Click to restore this chat": [\n            null,\n            "Klikk for å gjenopprette denne samtalen"\n         ],\n         "Minimized": [\n            null,\n            "Minimert"\n         ],\n         "This room is not anonymous": [\n            null,\n            "Dette rommet er ikke anonymt"\n         ],\n         "This room now shows unavailable members": [\n            null,\n            "Dette rommet viser nå utilgjengelige medlemmer"\n         ],\n         "This room does not show unavailable members": [\n            null,\n            "Dette rommet viser ikke utilgjengelige medlemmer"\n         ],\n         "Room logging is now enabled": [\n            null,\n            "Romlogging er nå aktivert"\n         ],\n         "Room logging is now disabled": [\n            null,\n            "Romlogging er nå deaktivert"\n         ],\n         "This room is now semi-anonymous": [\n            null,\n            "Dette rommet er nå semi-anonymt"\n         ],\n         "This room is now fully-anonymous": [\n            null,\n            "Dette rommet er nå totalt anonymt"\n         ],\n         "A new room has been created": [\n            null,\n            "Et nytt rom har blitt opprettet"\n         ],\n         "You have been banned from this room": [\n            null,\n            "Du har blitt utestengt fra dette rommet"\n         ],\n         "You have been kicked from this room": [\n            null,\n            "Du ble kastet ut av dette rommet"\n         ],\n         "You have been removed from this room because of an affiliation change": [\n            null,\n            "Du har blitt fjernet fra dette rommet på grunn av en holdningsendring"\n         ],\n         "You have been removed from this room because the room has changed to members-only and you\'re not a member": [\n            null,\n            "Du har blitt fjernet fra dette rommet fordi rommet nå kun tillater medlemmer, noe du ikke er."\n         ],\n         "You have been removed from this room because the MUC (Multi-user chat) service is being shut down.": [\n            null,\n            "Du har blitt fjernet fra dette rommet fordi MBC (Multi-Bruker-Chat)-tjenesten er stengt ned."\n         ],\n         "Message": [\n            null,\n            "Melding"\n         ],\n         "Error: the \\"": [\n            null,\n            ""\n         ],\n         "Are you sure you want to clear the messages from this room?": [\n            null,\n            "Er du sikker på at du vil fjerne meldingene fra dette rommet?"\n         ],\n         "Error: could not execute the command": [\n            null,\n            "Feil: kunne ikke utføre kommandoen"\n         ],\n         "Change user\'s affiliation to admin": [\n            null,\n            ""\n         ],\n         "Ban user from room": [\n            null,\n            "Utesteng bruker fra rommet"\n         ],\n         "Kick user from room": [\n            null,\n            "Kast ut bruker fra rommet"\n         ],\n         "Write in 3rd person": [\n            null,\n            "Skriv i tredjeperson"\n         ],\n         "Grant membership to a user": [\n            null,\n            ""\n         ],\n         "Remove user\'s ability to post messages": [\n            null,\n            "Fjern brukerens muligheter til å skrive meldinger"\n         ],\n         "Change your nickname": [\n            null,\n            "Endre ditt kallenavn"\n         ],\n         "Grant moderator role to user": [\n            null,\n            ""\n         ],\n         "Revoke user\'s membership": [\n            null,\n            ""\n         ],\n         "Set room subject (alias for /subject)": [\n            null,\n            ""\n         ],\n         "Allow muted user to post messages": [\n            null,\n            "Tillat stumme brukere å skrive meldinger"\n         ],\n         "The nickname you chose is reserved or currently in use, please choose a different one.": [\n            null,\n            ""\n         ],\n         "Nickname": [\n            null,\n            "Kallenavn"\n         ],\n         "This chatroom requires a password": [\n            null,\n            "Dette rommet krever et passord"\n         ],\n         "Password: ": [\n            null,\n            "Passord:"\n         ],\n         "Submit": [\n            null,\n            "Send"\n         ],\n         "The reason given is: \\"": [\n            null,\n            "Årsaken som er oppgitt er: \\""\n         ],\n         " has left the room. \\"": [\n            null,\n            ""\n         ],\n         " has joined the room. \\"": [\n            null,\n            ""\n         ],\n         " has joined the room.": [\n            null,\n            ""\n         ],\n         "Topic set by %1$s to: %2$s": [\n            null,\n            "Emnet ble endret den %1$s til: %2$s"\n         ],\n         "Occupants": [\n            null,\n            "Brukere her:"\n         ],\n         "Invite": [\n            null,\n            "Invitér"\n         ],\n         "Hidden": [\n            null,\n            "Skjult"\n         ],\n         "Message archiving": [\n            null,\n            ""\n         ],\n         "Members only": [\n            null,\n            ""\n         ],\n         "Moderated": [\n            null,\n            "Moderert"\n         ],\n         "Non-anonymous": [\n            null,\n            "Ikke-Anonym"\n         ],\n         "Persistent": [\n            null,\n            ""\n         ],\n         "Public": [\n            null,\n            "Alle"\n         ],\n         "Semi-anonymous": [\n            null,\n            "Semi-anonymt"\n         ],\n         "Unmoderated": [\n            null,\n            "Umoderert"\n         ],\n         "Unsecured": [\n            null,\n            ""\n         ],\n         "Messages are archived on the server": [\n            null,\n            ""\n         ],\n         "All other room occupants can see your Jabber ID": [\n            null,\n            ""\n         ],\n         "This room persists even if it\'s unoccupied": [\n            null,\n            ""\n         ],\n         "Only moderators can see your Jabber ID": [\n            null,\n            ""\n         ],\n         "This room will disappear once the last person leaves": [\n            null,\n            ""\n         ],\n         "You are about to invite %1$s to the chat room \\"%2$s\\". ": [\n            null,\n            "Du er i ferd med å invitere %1$s til samtalerommet \\"%2$s\\". "\n         ],\n         "You may optionally include a message, explaining the reason for the invitation.": [\n            null,\n            "Du kan eventuelt inkludere en melding og forklare årsaken til invitasjonen."\n         ],\n         "Room name": [\n            null,\n            "Romnavn"\n         ],\n         "Server": [\n            null,\n            "Server"\n         ],\n         "Show rooms": [\n            null,\n            "Vis Rom"\n         ],\n         "Rooms": [\n            null,\n            "Rom"\n         ],\n         "No rooms on %1$s": [\n            null,\n            "Ingen rom på %1$s"\n         ],\n         "Rooms on %1$s": [\n            null,\n            "Rom på %1$s"\n         ],\n         "Description:": [\n            null,\n            "Beskrivelse:"\n         ],\n         "Occupants:": [\n            null,\n            "Brukere her:"\n         ],\n         "Features:": [\n            null,\n            "Egenskaper:"\n         ],\n         "Requires authentication": [\n            null,\n            "Krever Godkjenning"\n         ],\n         "Requires an invitation": [\n            null,\n            "Krever en invitasjon"\n         ],\n         "Open room": [\n            null,\n            "Åpent Rom"\n         ],\n         "Permanent room": [\n            null,\n            "Permanent Rom"\n         ],\n         "Temporary room": [\n            null,\n            "Midlertidig Rom"\n         ],\n         "%1$s has invited you to join a chat room: %2$s": [\n            null,\n            "%1$s har invitert deg til å bli med i chatterommet: %2$s"\n         ],\n         "%1$s has invited you to join a chat room: %2$s, and left the following reason: \\"%3$s\\"": [\n            null,\n            "%1$s har invitert deg til å bli med i chatterommet: %2$s, og forlot selv av følgende grunn:  \\"%3$s\\""\n         ],\n         "Notification from %1$s": [\n            null,\n            ""\n         ],\n         "%1$s says": [\n            null,\n            ""\n         ],\n         "wants to be your contact": [\n            null,\n            ""\n         ],\n         "Re-establishing encrypted session": [\n            null,\n            "Gjenopptar kryptert økt"\n         ],\n         "Generating private key.": [\n            null,\n            "Genererer privat nøkkel"\n         ],\n         "Your browser might become unresponsive.": [\n            null,\n            "Din nettleser kan bli uresponsiv"\n         ],\n         "Authentication request from %1$s\\n\\nYour chat contact is attempting to verify your identity, by asking you the question below.\\n\\n%2$s": [\n            null,\n            "Godkjenningsforespørsel fra %1$s\\n\\nDin nettpratkontakt forsøker å bekrefte din identitet, ved å spørre deg spørsmålet under.\\n\\n%2$s"\n         ],\n         "Could not verify this user\'s identify.": [\n            null,\n            "Kunne ikke bekrefte denne brukerens identitet"\n         ],\n         "Exchanging private key with contact.": [\n            null,\n            "Bytter private nøkler med kontakt"\n         ],\n         "Your messages are not encrypted anymore": [\n            null,\n            "Dine meldinger er ikke kryptert lenger."\n         ],\n         "Your messages are now encrypted but your contact\'s identity has not been verified.": [\n            null,\n            "Dine meldinger er nå krypterte, men identiteten til din kontakt har ikke blitt verifisert."\n         ],\n         "Your contact\'s identify has been verified.": [\n            null,\n            "Din kontakts identitet har blitt verifisert."\n         ],\n         "Your contact has ended encryption on their end, you should do the same.": [\n            null,\n            "Din kontakt har avsluttet kryptering i sin ende, dette burde du også gjøre."\n         ],\n         "Your message could not be sent": [\n            null,\n            "Beskjeden din kunne ikke sendes"\n         ],\n         "We received an unencrypted message": [\n            null,\n            "Vi mottok en ukryptert beskjed"\n         ],\n         "We received an unreadable encrypted message": [\n            null,\n            "Vi mottok en uleselig melding"\n         ],\n         "Here are the fingerprints, please confirm them with %1$s, outside of this chat.\\n\\nFingerprint for you, %2$s: %3$s\\n\\nFingerprint for %1$s: %4$s\\n\\nIf you have confirmed that the fingerprints match, click OK, otherwise click Cancel.": [\n            null,\n            "Here are the fingerprints, please confirm them with %1$s, outside of this chat.\\n\\nFingerprint for you, %2$s: %3$s\\n\\nFingerprint for %1$s: %4$s\\n\\nOm du har bekreftet at avtrykkene matcher, klikk OK. I motsatt fall, trykk Avbryt."\n         ],\n         "You will be prompted to provide a security question and then an answer to that question.\\n\\nYour contact will then be prompted the same question and if they type the exact same answer (case sensitive), their identity will be verified.": [\n            null,\n            "Du vil bli spurt etter å tilby et sikkerhetsspørsmål og siden svare på dette.\\n\\nDin kontakt vil så bli spurt om det samme spørsmålet, og om de svarer det nøyaktig samme svaret (det er forskjell på små og store bokstaver), vil identiteten verifiseres."\n         ],\n         "What is your security question?": [\n            null,\n            "Hva er ditt Sikkerhetsspørsmål?"\n         ],\n         "What is the answer to the security question?": [\n            null,\n            "Hva er svaret på ditt Sikkerhetsspørsmål?"\n         ],\n         "Invalid authentication scheme provided": [\n            null,\n            "Du har vedlagt en ugyldig godkjenningsplan."\n         ],\n         "Your messages are not encrypted. Click here to enable OTR encryption.": [\n            null,\n            "Dine meldinger er ikke krypterte. Klikk her for å aktivere OTR-kryptering."\n         ],\n         "Your messages are encrypted, but your contact has not been verified.": [\n            null,\n            "Dine meldinger er krypterte, men din kontakt har ikke blitt verifisert."\n         ],\n         "Your messages are encrypted and your contact verified.": [\n            null,\n            "Dine meldinger er krypterte og din kontakt er verifisert."\n         ],\n         "Your contact has closed their end of the private session, you should do the same": [\n            null,\n            "Din kontakt har avsluttet økten i sin ende, dette burde du også gjøre."\n         ],\n         "End encrypted conversation": [\n            null,\n            "Avslutt kryptert økt"\n         ],\n         "Refresh encrypted conversation": [\n            null,\n            "Last inn kryptert samtale på nytt"\n         ],\n         "Start encrypted conversation": [\n            null,\n            "Start en kryptert samtale"\n         ],\n         "Verify with fingerprints": [\n            null,\n            "Verifiser med Avtrykk"\n         ],\n         "Verify with SMP": [\n            null,\n            "Verifiser med SMP"\n         ],\n         "What\'s this?": [\n            null,\n            "Hva er dette?"\n         ],\n         "unencrypted": [\n            null,\n            "ukryptertß"\n         ],\n         "unverified": [\n            null,\n            "uverifisert"\n         ],\n         "verified": [\n            null,\n            "verifisert"\n         ],\n         "finished": [\n            null,\n            "ferdig"\n         ],\n         " e.g. conversejs.org": [\n            null,\n            ""\n         ],\n         "Your XMPP provider\'s domain name:": [\n            null,\n            "Din XMPP-tilbyders domenenavn:"\n         ],\n         "Fetch registration form": [\n            null,\n            "Hent registreringsskjema"\n         ],\n         "Tip: A list of public XMPP providers is available": [\n            null,\n            "Tips: En liste med offentlige XMPP-tilbydere er tilgjengelig"\n         ],\n         "here": [\n            null,\n            "her"\n         ],\n         "Register": [\n            null,\n            "Registrér deg"\n         ],\n         "Sorry, the given provider does not support in band account registration. Please try with a different provider.": [\n            null,\n            "Beklager, den valgte tilbyderen støtter ikke in band kontoregistrering. Vennligst prøv igjen med en annen tilbyder. "\n         ],\n         "Requesting a registration form from the XMPP server": [\n            null,\n            "Spør etter registreringsskjema fra XMPP-tjeneren"\n         ],\n         "Something went wrong while establishing a connection with \\"%1$s\\". Are you sure it exists?": [\n            null,\n            "Noe gikk galt under etablering av forbindelse med \\"%1$s\\". Er du sikker på at denne eksisterer?"\n         ],\n         "Now logging you in": [\n            null,\n            "Logger deg inn"\n         ],\n         "Registered successfully": [\n            null,\n            "Registrering var vellykket"\n         ],\n         "Return": [\n            null,\n            "Tilbake"\n         ],\n         "Retry": [\n            null,\n            ""\n         ],\n         "This contact is busy": [\n            null,\n            "Denne kontakten er opptatt"\n         ],\n         "This contact is online": [\n            null,\n            "Kontakten er pålogget"\n         ],\n         "This contact is offline": [\n            null,\n            "Kontakten er avlogget"\n         ],\n         "This contact is unavailable": [\n            null,\n            "Kontakten er utilgjengelig"\n         ],\n         "This contact is away for an extended period": [\n            null,\n            "Kontakten er borte for en lengre periode"\n         ],\n         "This contact is away": [\n            null,\n            "Kontakten er borte"\n         ],\n         "Groups": [\n            null,\n            "Grupper"\n         ],\n         "My contacts": [\n            null,\n            "Mine Kontakter"\n         ],\n         "Pending contacts": [\n            null,\n            "Kontakter som venter på godkjenning"\n         ],\n         "Contact requests": [\n            null,\n            "Kontaktforespørsler"\n         ],\n         "Ungrouped": [\n            null,\n            "Ugrupperte"\n         ],\n         "Filter": [\n            null,\n            ""\n         ],\n         "State": [\n            null,\n            ""\n         ],\n         "Any": [\n            null,\n            ""\n         ],\n         "Chatty": [\n            null,\n            ""\n         ],\n         "Extended Away": [\n            null,\n            ""\n         ],\n         "Click to remove this contact": [\n            null,\n            "Klikk for å fjerne denne kontakten"\n         ],\n         "Click to accept this contact request": [\n            null,\n            "Klikk for å Godta denne kontaktforespørselen"\n         ],\n         "Click to decline this contact request": [\n            null,\n            "Klikk for å avslå denne kontaktforespørselen"\n         ],\n         "Click to chat with this contact": [\n            null,\n            "Klikk for å chatte med denne kontakten"\n         ],\n         "Name": [\n            null,\n            ""\n         ],\n         "Are you sure you want to remove this contact?": [\n            null,\n            "Er du sikker på at du vil fjerne denne kontakten?"\n         ],\n         "Sorry, there was an error while trying to remove ": [\n            null,\n            ""\n         ],\n         "Are you sure you want to decline this contact request?": [\n            null,\n            "Er du sikker på at du vil avslå denne kontaktforespørselen?"\n         ]\n      }\n   }\n}';});


define('text!nl',[],function () { return '{\n   "domain": "converse",\n   "locale_data": {\n      "converse": {\n         "": {\n            "domain": "converse",\n            "plural_forms": "nplurals=2; plural=n != 1;",\n            "lang": "nl"\n         },\n         "Bookmark this room": [\n            null,\n            ""\n         ],\n         "The name for this bookmark:": [\n            null,\n            ""\n         ],\n         "Would you like this room to be automatically joined upon startup?": [\n            null,\n            ""\n         ],\n         "What should your nickname for this room be?": [\n            null,\n            ""\n         ],\n         "Save": [\n            null,\n            "Opslaan"\n         ],\n         "Cancel": [\n            null,\n            "Annuleren"\n         ],\n         "Sorry, something went wrong while trying to save your bookmark.": [\n            null,\n            ""\n         ],\n         "Bookmarked Rooms": [\n            null,\n            ""\n         ],\n         "Click to open this room": [\n            null,\n            "Klik om room te openen"\n         ],\n         "Show more information on this room": [\n            null,\n            "Toon meer informatie over deze room"\n         ],\n         "Remove this bookmark": [\n            null,\n            ""\n         ],\n         "Personal message": [\n            null,\n            "Persoonlijk bericht"\n         ],\n         "Send": [\n            null,\n            ""\n         ],\n         "me": [\n            null,\n            "ikzelf"\n         ],\n         "A very large message has been received.This might be due to an attack meant to degrade the chat performance.Output has been shortened.": [\n            null,\n            ""\n         ],\n         "Typing from another device": [\n            null,\n            ""\n         ],\n         "Stopped typing on the other device": [\n            null,\n            ""\n         ],\n         "Show this menu": [\n            null,\n            "Toon dit menu"\n         ],\n         "Write in the third person": [\n            null,\n            "Schrijf in de 3de persoon"\n         ],\n         "Remove messages": [\n            null,\n            "Verwijder bericht"\n         ],\n         "Are you sure you want to clear the messages from this chat box?": [\n            null,\n            ""\n         ],\n         "Insert a smiley": [\n            null,\n            ""\n         ],\n         "Start a call": [\n            null,\n            ""\n         ],\n         "Contacts": [\n            null,\n            "Contacten"\n         ],\n         "Password:": [\n            null,\n            "Wachtwoord:"\n         ],\n         "Log In": [\n            null,\n            "Aanmelden"\n         ],\n         "user@server": [\n            null,\n            ""\n         ],\n         "Sign in": [\n            null,\n            "Aanmelden"\n         ],\n         "I am %1$s": [\n            null,\n            "Ik ben %1$s"\n         ],\n         "Click here to write a custom status message": [\n            null,\n            "Klik hier om custom status bericht te maken"\n         ],\n         "Click to change your chat status": [\n            null,\n            "Klik hier om status te wijzigen"\n         ],\n         "Custom status": [\n            null,\n            ""\n         ],\n         "online": [\n            null,\n            "online"\n         ],\n         "busy": [\n            null,\n            "bezet"\n         ],\n         "away for long": [\n            null,\n            "afwezig lange tijd"\n         ],\n         "away": [\n            null,\n            "afwezig"\n         ],\n         "Online": [\n            null,\n            "Online"\n         ],\n         "Busy": [\n            null,\n            "Bezet"\n         ],\n         "Away": [\n            null,\n            "Afwezig"\n         ],\n         "Offline": [\n            null,\n            ""\n         ],\n         "Contact name": [\n            null,\n            "Contact naam"\n         ],\n         "Search": [\n            null,\n            "Zoeken"\n         ],\n         "e.g. user@example.org": [\n            null,\n            ""\n         ],\n         "Add": [\n            null,\n            "Toevoegen"\n         ],\n         "Click to add new chat contacts": [\n            null,\n            "Klik om nieuwe contacten toe te voegen"\n         ],\n         "Add a contact": [\n            null,\n            "Voeg contact toe"\n         ],\n         "No users found": [\n            null,\n            "Geen gebruikers gevonden"\n         ],\n         "Click to add as a chat contact": [\n            null,\n            "Klik om contact toe te voegen"\n         ],\n         "Toggle chat": [\n            null,\n            ""\n         ],\n         "The connection has dropped, attempting to reconnect.": [\n            null,\n            ""\n         ],\n         "Connecting": [\n            null,\n            "Verbinden"\n         ],\n         "Authenticating": [\n            null,\n            "Authenticeren"\n         ],\n         "Authentication Failed": [\n            null,\n            "Authenticeren mislukt"\n         ],\n         "Sorry, there was an error while trying to add ": [\n            null,\n            ""\n         ],\n         "This client does not allow presence subscriptions": [\n            null,\n            ""\n         ],\n         "Minimize this chat box": [\n            null,\n            ""\n         ],\n         "Minimized": [\n            null,\n            ""\n         ],\n         "This room is not anonymous": [\n            null,\n            "Deze room is niet annoniem"\n         ],\n         "This room now shows unavailable members": [\n            null,\n            ""\n         ],\n         "This room does not show unavailable members": [\n            null,\n            ""\n         ],\n         "The room configuration has changed": [\n            null,\n            ""\n         ],\n         "Room logging is now enabled": [\n            null,\n            ""\n         ],\n         "Room logging is now disabled": [\n            null,\n            ""\n         ],\n         "This room is now semi-anonymous": [\n            null,\n            "Deze room is nu semie annoniem"\n         ],\n         "This room is now fully-anonymous": [\n            null,\n            "Deze room is nu volledig annoniem"\n         ],\n         "A new room has been created": [\n            null,\n            "Een nieuwe room is gemaakt"\n         ],\n         "You have been banned from this room": [\n            null,\n            "Je bent verbannen uit deze room"\n         ],\n         "You have been kicked from this room": [\n            null,\n            "Je bent uit de room gegooid"\n         ],\n         "You have been removed from this room because of an affiliation change": [\n            null,\n            ""\n         ],\n         "You have been removed from this room because the room has changed to members-only and you\'re not a member": [\n            null,\n            ""\n         ],\n         "You have been removed from this room because the MUC (Multi-user chat) service is being shut down.": [\n            null,\n            ""\n         ],\n         "%1$s has been removed because of an affiliation change": [\n            null,\n            ""\n         ],\n         "%1$s has been removed for not being a member": [\n            null,\n            ""\n         ],\n         "Message": [\n            null,\n            "Bericht"\n         ],\n         "Hide the list of occupants": [\n            null,\n            ""\n         ],\n         "Error: the \\"": [\n            null,\n            ""\n         ],\n         "Error: could not execute the command": [\n            null,\n            ""\n         ],\n         "Change user\'s affiliation to admin": [\n            null,\n            ""\n         ],\n         "Change user role to occupant": [\n            null,\n            ""\n         ],\n         "Grant membership to a user": [\n            null,\n            ""\n         ],\n         "Remove user\'s ability to post messages": [\n            null,\n            ""\n         ],\n         "Change your nickname": [\n            null,\n            ""\n         ],\n         "Grant moderator role to user": [\n            null,\n            ""\n         ],\n         "Revoke user\'s membership": [\n            null,\n            ""\n         ],\n         "Set room subject (alias for /subject)": [\n            null,\n            ""\n         ],\n         "Allow muted user to post messages": [\n            null,\n            ""\n         ],\n         "The nickname you chose is reserved or currently in use, please choose a different one.": [\n            null,\n            ""\n         ],\n         "Please choose your nickname": [\n            null,\n            ""\n         ],\n         "Nickname": [\n            null,\n            "Bijnaam"\n         ],\n         "This chatroom requires a password": [\n            null,\n            "Chatroom heeft een wachtwoord"\n         ],\n         "Password: ": [\n            null,\n            "Wachtwoord: "\n         ],\n         "Submit": [\n            null,\n            "Indienen"\n         ],\n         "The reason given is: \\"%1$s\\".": [\n            null,\n            ""\n         ],\n         "The reason given is: \\"": [\n            null,\n            ""\n         ],\n         " has left the room. \\"": [\n            null,\n            ""\n         ],\n         " has joined the room. \\"": [\n            null,\n            ""\n         ],\n         " has joined the room.": [\n            null,\n            ""\n         ],\n         "Topic set by %1$s to: %2$s": [\n            null,\n            ""\n         ],\n         "Invite": [\n            null,\n            ""\n         ],\n         "Hidden": [\n            null,\n            "Verborgen"\n         ],\n         "Message archiving": [\n            null,\n            ""\n         ],\n         "Members only": [\n            null,\n            ""\n         ],\n         "Moderated": [\n            null,\n            "Gemodereerd"\n         ],\n         "Non-anonymous": [\n            null,\n            "Niet annoniem"\n         ],\n         "Persistent": [\n            null,\n            ""\n         ],\n         "Public": [\n            null,\n            "Publiek"\n         ],\n         "Semi-anonymous": [\n            null,\n            "Semi annoniem"\n         ],\n         "Unmoderated": [\n            null,\n            "Niet gemodereerd"\n         ],\n         "Unsecured": [\n            null,\n            ""\n         ],\n         "Messages are archived on the server": [\n            null,\n            ""\n         ],\n         "All other room occupants can see your Jabber ID": [\n            null,\n            ""\n         ],\n         "This room persists even if it\'s unoccupied": [\n            null,\n            ""\n         ],\n         "Only moderators can see your Jabber ID": [\n            null,\n            ""\n         ],\n         "This room will disappear once the last person leaves": [\n            null,\n            ""\n         ],\n         "You are about to invite %1$s to the chat room \\"%2$s\\". ": [\n            null,\n            ""\n         ],\n         "You may optionally include a message, explaining the reason for the invitation.": [\n            null,\n            ""\n         ],\n         "Room name": [\n            null,\n            "Room naam"\n         ],\n         "Server": [\n            null,\n            "Server"\n         ],\n         "Show rooms": [\n            null,\n            "Toon rooms"\n         ],\n         "Rooms": [\n            null,\n            "Rooms"\n         ],\n         "No rooms on %1$s": [\n            null,\n            "Geen room op %1$s"\n         ],\n         "Rooms on %1$s": [\n            null,\n            "Room op %1$s"\n         ],\n         "Description:": [\n            null,\n            "Beschrijving"\n         ],\n         "Occupants:": [\n            null,\n            "Deelnemers:"\n         ],\n         "Features:": [\n            null,\n            "Functies:"\n         ],\n         "Requires authentication": [\n            null,\n            "Verificatie vereist"\n         ],\n         "Requires an invitation": [\n            null,\n            "Veriest een uitnodiging"\n         ],\n         "Open room": [\n            null,\n            "Open room"\n         ],\n         "Permanent room": [\n            null,\n            "Blijvend room"\n         ],\n         "Temporary room": [\n            null,\n            "Tijdelijke room"\n         ],\n         "%1$s has invited you to join a chat room: %2$s": [\n            null,\n            ""\n         ],\n         "%1$s has invited you to join a chat room: %2$s, and left the following reason: \\"%3$s\\"": [\n            null,\n            ""\n         ],\n         "Notification from %1$s": [\n            null,\n            ""\n         ],\n         "%1$s says": [\n            null,\n            ""\n         ],\n         "wants to be your contact": [\n            null,\n            ""\n         ],\n         "Re-establishing encrypted session": [\n            null,\n            "Bezig versleutelde sessie te herstellen"\n         ],\n         "Generating private key.": [\n            null,\n            ""\n         ],\n         "Your browser might become unresponsive.": [\n            null,\n            ""\n         ],\n         "Authentication request from %1$s\\n\\nYour chat contact is attempting to verify your identity, by asking you the question below.\\n\\n%2$s": [\n            null,\n            ""\n         ],\n         "Could not verify this user\'s identify.": [\n            null,\n            "Niet kon de identiteit van deze gebruiker niet identificeren."\n         ],\n         "Exchanging private key with contact.": [\n            null,\n            ""\n         ],\n         "Your messages are not encrypted anymore": [\n            null,\n            "Je berichten zijn niet meer encrypted"\n         ],\n         "Your message could not be sent": [\n            null,\n            "Je bericht kon niet worden verzonden"\n         ],\n         "We received an unencrypted message": [\n            null,\n            "We ontvingen een unencrypted bericht "\n         ],\n         "We received an unreadable encrypted message": [\n            null,\n            "We ontvangen een onleesbaar unencrypted bericht"\n         ],\n         "Here are the fingerprints, please confirm them with %1$s, outside of this chat.\\n\\nFingerprint for you, %2$s: %3$s\\n\\nFingerprint for %1$s: %4$s\\n\\nIf you have confirmed that the fingerprints match, click OK, otherwise click Cancel.": [\n            null,\n            ""\n         ],\n         "You will be prompted to provide a security question and then an answer to that question.\\n\\nYour contact will then be prompted the same question and if they type the exact same answer (case sensitive), their identity will be verified.": [\n            null,\n            ""\n         ],\n         "What is your security question?": [\n            null,\n            "Wat is jou sericury vraag?"\n         ],\n         "What is the answer to the security question?": [\n            null,\n            "Wat is het antwoord op de security vraag?"\n         ],\n         "Invalid authentication scheme provided": [\n            null,\n            ""\n         ],\n         "Your messages are not encrypted. Click here to enable OTR encryption.": [\n            null,\n            "Jou bericht is niet encrypted. KLik hier om ORC encrytion aan te zetten."\n         ],\n         "End encrypted conversation": [\n            null,\n            "Beeindig encrypted gesprek"\n         ],\n         "Refresh encrypted conversation": [\n            null,\n            "Ververs encrypted gesprek"\n         ],\n         "Start encrypted conversation": [\n            null,\n            "Start encrypted gesprek"\n         ],\n         "Verify with fingerprints": [\n            null,\n            ""\n         ],\n         "Verify with SMP": [\n            null,\n            ""\n         ],\n         "What\'s this?": [\n            null,\n            "Wat is dit?"\n         ],\n         "unencrypted": [\n            null,\n            "ongecodeerde"\n         ],\n         "unverified": [\n            null,\n            "niet geverifieerd"\n         ],\n         "verified": [\n            null,\n            "geverifieerd"\n         ],\n         "finished": [\n            null,\n            "klaar"\n         ],\n         " e.g. conversejs.org": [\n            null,\n            ""\n         ],\n         "Your XMPP provider\'s domain name:": [\n            null,\n            ""\n         ],\n         "Fetch registration form": [\n            null,\n            ""\n         ],\n         "Tip: A list of public XMPP providers is available": [\n            null,\n            ""\n         ],\n         "here": [\n            null,\n            ""\n         ],\n         "Register": [\n            null,\n            ""\n         ],\n         "Sorry, the given provider does not support in band account registration. Please try with a different provider.": [\n            null,\n            ""\n         ],\n         "Requesting a registration form from the XMPP server": [\n            null,\n            ""\n         ],\n         "Something went wrong while establishing a connection with \\"%1$s\\". Are you sure it exists?": [\n            null,\n            ""\n         ],\n         "Now logging you in": [\n            null,\n            ""\n         ],\n         "Registered successfully": [\n            null,\n            ""\n         ],\n         "Return": [\n            null,\n            ""\n         ],\n         "The provider rejected your registration attempt. Please check the values you entered for correctness.": [\n            null,\n            ""\n         ],\n         "Retry": [\n            null,\n            ""\n         ],\n         "This contact is busy": [\n            null,\n            "Contact is bezet"\n         ],\n         "This contact is online": [\n            null,\n            "Contact is online"\n         ],\n         "This contact is offline": [\n            null,\n            "Contact is offline"\n         ],\n         "This contact is unavailable": [\n            null,\n            "Contact is niet beschikbaar"\n         ],\n         "This contact is away for an extended period": [\n            null,\n            "Contact is afwezig voor lange periode"\n         ],\n         "This contact is away": [\n            null,\n            "Conact is afwezig"\n         ],\n         "Groups": [\n            null,\n            ""\n         ],\n         "My contacts": [\n            null,\n            "Mijn contacts"\n         ],\n         "Pending contacts": [\n            null,\n            "Conacten in afwachting van"\n         ],\n         "Contact requests": [\n            null,\n            "Contact uitnodiging"\n         ],\n         "Ungrouped": [\n            null,\n            ""\n         ],\n         "Filter": [\n            null,\n            ""\n         ],\n         "State": [\n            null,\n            ""\n         ],\n         "Any": [\n            null,\n            ""\n         ],\n         "Chatty": [\n            null,\n            ""\n         ],\n         "Extended Away": [\n            null,\n            ""\n         ],\n         "Click to remove this contact": [\n            null,\n            "Klik om contact te verwijderen"\n         ],\n         "Click to chat with this contact": [\n            null,\n            "Klik om te chatten met contact"\n         ],\n         "Name": [\n            null,\n            ""\n         ],\n         "Sorry, there was an error while trying to remove ": [\n            null,\n            ""\n         ]\n      }\n   }\n}';});


define('text!pl',[],function () { return '{\n   "domain": "converse",\n   "locale_data": {\n      "converse": {\n         "": {\n            "domain": "converse",\n            "plural_forms": "nplurals=3; plural=(n==1 ? 0 : n%10>=2 && n%10<=4 && (n%100<10 || n%100>=20) ? 1 : 2);",\n            "lang": "pl"\n         },\n         "Bookmark this room": [\n            null,\n            ""\n         ],\n         "The name for this bookmark:": [\n            null,\n            ""\n         ],\n         "Would you like this room to be automatically joined upon startup?": [\n            null,\n            ""\n         ],\n         "What should your nickname for this room be?": [\n            null,\n            ""\n         ],\n         "Save": [\n            null,\n            "Zachowaj"\n         ],\n         "Cancel": [\n            null,\n            "Anuluj"\n         ],\n         "Bookmarked Rooms": [\n            null,\n            ""\n         ],\n         "Click to open this room": [\n            null,\n            "Kliknij aby wejść do pokoju"\n         ],\n         "Show more information on this room": [\n            null,\n            "Pokaż więcej informacji o pokoju"\n         ],\n         "Remove this bookmark": [\n            null,\n            ""\n         ],\n         "You have unread messages": [\n            null,\n            "Masz nieprzeczytane wiadomości"\n         ],\n         "Close this chat box": [\n            null,\n            "Zamknij okno rozmowy"\n         ],\n         "Personal message": [\n            null,\n            "Wiadomość osobista"\n         ],\n         "Send": [\n            null,\n            ""\n         ],\n         "me": [\n            null,\n            "ja"\n         ],\n         "A very large message has been received.This might be due to an attack meant to degrade the chat performance.Output has been shortened.": [\n            null,\n            ""\n         ],\n         "Typing from another device": [\n            null,\n            ""\n         ],\n         "is typing": [\n            null,\n            "pisze"\n         ],\n         "Stopped typing on the other device": [\n            null,\n            ""\n         ],\n         "has stopped typing": [\n            null,\n            "przestał pisać"\n         ],\n         "has gone away": [\n            null,\n            "uciekł"\n         ],\n         "Show this menu": [\n            null,\n            "Pokaż menu"\n         ],\n         "Write in the third person": [\n            null,\n            "Pisz w trzeciej osobie"\n         ],\n         "Remove messages": [\n            null,\n            "Usuń wiadomości"\n         ],\n         "Are you sure you want to clear the messages from this chat box?": [\n            null,\n            "Potwierdź czy rzeczywiście chcesz wyczyścić wiadomości z okienka rozmowy?"\n         ],\n         "has gone offline": [\n            null,\n            "wyłączył się"\n         ],\n         "is busy": [\n            null,\n            "zajęty"\n         ],\n         "Clear all messages": [\n            null,\n            "Wyczyść wszystkie wiadomości"\n         ],\n         "Insert a smiley": [\n            null,\n            "Wstaw uśmieszek"\n         ],\n         "Start a call": [\n            null,\n            "Zadzwoń"\n         ],\n         "Contacts": [\n            null,\n            "Kontakty"\n         ],\n         "XMPP Username:": [\n            null,\n            "Nazwa użytkownika XMPP:"\n         ],\n         "Password:": [\n            null,\n            "Hasło:"\n         ],\n         "Click here to log in anonymously": [\n            null,\n            "Kliknij tutaj aby zalogować się anonimowo"\n         ],\n         "Log In": [\n            null,\n            "Zaloguj się"\n         ],\n         "Username": [\n            null,\n            "Nazwa użytkownika"\n         ],\n         "user@server": [\n            null,\n            "użytkownik@serwer"\n         ],\n         "password": [\n            null,\n            "hasło"\n         ],\n         "Sign in": [\n            null,\n            "Zaloguj się"\n         ],\n         "I am %1$s": [\n            null,\n            "Jestem %1$s"\n         ],\n         "Click here to write a custom status message": [\n            null,\n            "Kliknij aby wpisać nowy status"\n         ],\n         "Click to change your chat status": [\n            null,\n            "Kliknij aby zmienić status rozmowy"\n         ],\n         "Custom status": [\n            null,\n            "Własny status"\n         ],\n         "online": [\n            null,\n            "dostępny"\n         ],\n         "busy": [\n            null,\n            "zajęty"\n         ],\n         "away for long": [\n            null,\n            "dłużej nieobecny"\n         ],\n         "away": [\n            null,\n            "nieobecny"\n         ],\n         "offline": [\n            null,\n            "rozłączony"\n         ],\n         "Online": [\n            null,\n            "Dostępny"\n         ],\n         "Busy": [\n            null,\n            "Zajęty"\n         ],\n         "Away": [\n            null,\n            "Nieobecny"\n         ],\n         "Offline": [\n            null,\n            "Rozłączony"\n         ],\n         "Log out": [\n            null,\n            "Wyloguj się"\n         ],\n         "Contact name": [\n            null,\n            "Nazwa kontaktu"\n         ],\n         "Search": [\n            null,\n            "Szukaj"\n         ],\n         "e.g. user@example.org": [\n            null,\n            "np. użytkownik@przykładowa-domena.pl"\n         ],\n         "Add": [\n            null,\n            "Dodaj"\n         ],\n         "Click to add new chat contacts": [\n            null,\n            "Kliknij aby dodać nowe kontakty"\n         ],\n         "Add a contact": [\n            null,\n            "Dodaj kontakt"\n         ],\n         "No users found": [\n            null,\n            "Nie znaleziono użytkowników"\n         ],\n         "Click to add as a chat contact": [\n            null,\n            "Kliknij aby dodać jako kontakt"\n         ],\n         "Toggle chat": [\n            null,\n            "Przełącz rozmowę"\n         ],\n         "Reconnecting": [\n            null,\n            "Przywracam połączenie"\n         ],\n         "The connection has dropped, attempting to reconnect.": [\n            null,\n            ""\n         ],\n         "Connecting": [\n            null,\n            "Łączę się"\n         ],\n         "Authenticating": [\n            null,\n            "Autoryzuję"\n         ],\n         "Authentication Failed": [\n            null,\n            "Autoryzacja nie powiodła się"\n         ],\n         "Sorry, there was an error while trying to add ": [\n            null,\n            "Wystąpił błąd w czasie próby dodania "\n         ],\n         "This client does not allow presence subscriptions": [\n            null,\n            "Klient nie umożliwia subskrybcji obecności"\n         ],\n         "Click to hide these contacts": [\n            null,\n            "Kliknij aby schować te kontakty"\n         ],\n         "Close this box": [\n            null,\n            "Zamknij okno"\n         ],\n         "Minimize this chat box": [\n            null,\n            "Zminimalizuj okno czatu"\n         ],\n         "Click to restore this chat": [\n            null,\n            "Kliknij aby powrócić do rozmowy"\n         ],\n         "Minimized": [\n            null,\n            "Zminimalizowany"\n         ],\n         "This room is not anonymous": [\n            null,\n            "Pokój nie jest anonimowy"\n         ],\n         "This room now shows unavailable members": [\n            null,\n            "Pokój pokazuje niedostępnych rozmówców"\n         ],\n         "This room does not show unavailable members": [\n            null,\n            "Ten pokój nie wyświetla niedostępnych członków"\n         ],\n         "Room logging is now enabled": [\n            null,\n            "Zostało włączone zapisywanie rozmów w pokoju"\n         ],\n         "Room logging is now disabled": [\n            null,\n            "Zostało wyłączone zapisywanie rozmów w pokoju"\n         ],\n         "This room is now semi-anonymous": [\n            null,\n            "Pokój stał się półanonimowy"\n         ],\n         "This room is now fully-anonymous": [\n            null,\n            "Pokój jest teraz w pełni anonimowy"\n         ],\n         "A new room has been created": [\n            null,\n            "Został utworzony nowy pokój"\n         ],\n         "You have been banned from this room": [\n            null,\n            "Jesteś niemile widziany w tym pokoju"\n         ],\n         "You have been kicked from this room": [\n            null,\n            "Zostałeś wykopany z pokoju"\n         ],\n         "You have been removed from this room because of an affiliation change": [\n            null,\n            "Zostałeś usunięty z pokoju ze względu na zmianę przynależności"\n         ],\n         "You have been removed from this room because the room has changed to members-only and you\'re not a member": [\n            null,\n            "Zostałeś usunięty z pokoju ze względu na to, że pokój zmienił się na wymagający członkowstwa, a ty nie jesteś członkiem"\n         ],\n         "You have been removed from this room because the MUC (Multi-user chat) service is being shut down.": [\n            null,\n            "Zostałeś usunięty z pokoju ze względu na to, że serwis MUC(Multi-user chat) został wyłączony."\n         ],\n         "Message": [\n            null,\n            "Wiadomość"\n         ],\n         "Hide the list of occupants": [\n            null,\n            "Ukryj listę rozmówców"\n         ],\n         "Error: the \\"": [\n            null,\n            "Błąd: \\""\n         ],\n         "Are you sure you want to clear the messages from this room?": [\n            null,\n            "Potwierdź czy rzeczywiście chcesz wyczyścić wiadomości z tego pokoju?"\n         ],\n         "Error: could not execute the command": [\n            null,\n            "Błąd: nie potrafię uruchomić polecenia"\n         ],\n         "Change user\'s affiliation to admin": [\n            null,\n            "Przyznaj prawa administratora"\n         ],\n         "Ban user from room": [\n            null,\n            "Zablokuj dostępu do pokoju"\n         ],\n         "Change user role to occupant": [\n            null,\n            "Zmień prawa dostępu na zwykłego uczestnika"\n         ],\n         "Kick user from room": [\n            null,\n            "Wykop z pokoju"\n         ],\n         "Write in 3rd person": [\n            null,\n            "Pisz w trzeciej osobie"\n         ],\n         "Grant membership to a user": [\n            null,\n            "Przyznaj członkowstwo "\n         ],\n         "Remove user\'s ability to post messages": [\n            null,\n            "Zablokuj człowiekowi możliwość rozmowy"\n         ],\n         "Change your nickname": [\n            null,\n            "Zmień ksywkę"\n         ],\n         "Grant moderator role to user": [\n            null,\n            "Przyznaj prawa moderatora"\n         ],\n         "Grant ownership of this room": [\n            null,\n            "Uczyń właścicielem pokoju"\n         ],\n         "Revoke user\'s membership": [\n            null,\n            "Usuń z listy członków"\n         ],\n         "Set room subject (alias for /subject)": [\n            null,\n            ""\n         ],\n         "Allow muted user to post messages": [\n            null,\n            "Pozwól uciszonemu człowiekowi na rozmowę"\n         ],\n         "The nickname you chose is reserved or currently in use, please choose a different one.": [\n            null,\n            "Ksywka jaką wybrałeś jest zarezerwowana albo w użyciu, wybierz proszę inną."\n         ],\n         "Please choose your nickname": [\n            null,\n            "Wybierz proszę ksywkę"\n         ],\n         "Nickname": [\n            null,\n            "Ksywka"\n         ],\n         "Enter room": [\n            null,\n            "Wejdź do pokoju"\n         ],\n         "This chatroom requires a password": [\n            null,\n            "Pokój rozmów wymaga podania hasła"\n         ],\n         "Password: ": [\n            null,\n            "Hasło:"\n         ],\n         "Submit": [\n            null,\n            "Wyślij"\n         ],\n         "The reason given is: \\"": [\n            null,\n            "Podana przyczyna to: \\""\n         ],\n         " has left the room. \\"": [\n            null,\n            ""\n         ],\n         " has joined the room. \\"": [\n            null,\n            ""\n         ],\n         " has joined the room.": [\n            null,\n            ""\n         ],\n         "Topic set by %1$s to: %2$s": [\n            null,\n            "Temat ustawiony przez %1$s na: %2$s"\n         ],\n         "This user is a moderator.": [\n            null,\n            "Ten człowiek jest moderatorem"\n         ],\n         "This user can send messages in this room.": [\n            null,\n            "Ten człowiek może rozmawiać w niejszym pokoju"\n         ],\n         "This user can NOT send messages in this room.": [\n            null,\n            "Ten człowiek NIE może rozmawiać w niniejszym pokoju"\n         ],\n         "Occupants": [\n            null,\n            "Uczestników"\n         ],\n         "Invite": [\n            null,\n            "Zaproś"\n         ],\n         "Hidden": [\n            null,\n            "Ukryty"\n         ],\n         "Message archiving": [\n            null,\n            ""\n         ],\n         "Members only": [\n            null,\n            ""\n         ],\n         "Moderated": [\n            null,\n            "Moderowany"\n         ],\n         "Non-anonymous": [\n            null,\n            "Nieanonimowy"\n         ],\n         "Persistent": [\n            null,\n            ""\n         ],\n         "Public": [\n            null,\n            "Publiczny"\n         ],\n         "Semi-anonymous": [\n            null,\n            "Półanonimowy"\n         ],\n         "Unmoderated": [\n            null,\n            "Niemoderowany"\n         ],\n         "Unsecured": [\n            null,\n            ""\n         ],\n         "Messages are archived on the server": [\n            null,\n            ""\n         ],\n         "All other room occupants can see your Jabber ID": [\n            null,\n            ""\n         ],\n         "This room persists even if it\'s unoccupied": [\n            null,\n            ""\n         ],\n         "Only moderators can see your Jabber ID": [\n            null,\n            ""\n         ],\n         "This room will disappear once the last person leaves": [\n            null,\n            ""\n         ],\n         "You are about to invite %1$s to the chat room \\"%2$s\\". ": [\n            null,\n            "Zamierzasz zaprosić %1$s do pokoju rozmów \\"%2$s\\". "\n         ],\n         "You may optionally include a message, explaining the reason for the invitation.": [\n            null,\n            "Masz opcjonalną możliwość dołączenia wiadomości, która wyjaśni przyczynę zaproszenia."\n         ],\n         "Room name": [\n            null,\n            "Nazwa pokoju"\n         ],\n         "Server": [\n            null,\n            "Serwer"\n         ],\n         "Join Room": [\n            null,\n            "Wejdź do pokoju"\n         ],\n         "Show rooms": [\n            null,\n            "Pokaż pokoje"\n         ],\n         "Rooms": [\n            null,\n            "Pokoje"\n         ],\n         "No rooms on %1$s": [\n            null,\n            "Brak jest pokojów na %1$s"\n         ],\n         "Rooms on %1$s": [\n            null,\n            "Pokoje na %1$s"\n         ],\n         "Description:": [\n            null,\n            "Opis:"\n         ],\n         "Occupants:": [\n            null,\n            "Uczestnicy:"\n         ],\n         "Features:": [\n            null,\n            "Możliwości:"\n         ],\n         "Requires authentication": [\n            null,\n            "Wymaga autoryzacji"\n         ],\n         "Requires an invitation": [\n            null,\n            "Wymaga zaproszenia"\n         ],\n         "Open room": [\n            null,\n            "Otwarty pokój"\n         ],\n         "Permanent room": [\n            null,\n            "Stały pokój"\n         ],\n         "Temporary room": [\n            null,\n            "Pokój tymczasowy"\n         ],\n         "%1$s has invited you to join a chat room: %2$s": [\n            null,\n            "%1$s zaprosił(a) cię do wejścia do pokoju rozmów %2$s"\n         ],\n         "%1$s has invited you to join a chat room: %2$s, and left the following reason: \\"%3$s\\"": [\n            null,\n            "%1$s zaprosił cię do pokoju: %2$s, podając następujący powód: \\"%3$s\\""\n         ],\n         "Notification from %1$s": [\n            null,\n            "Powiadomienie od %1$s"\n         ],\n         "%1$s says": [\n            null,\n            "%1$s powiedział"\n         ],\n         "has come online": [\n            null,\n            "połączył się"\n         ],\n         "wants to be your contact": [\n            null,\n            "chce być twoim kontaktem"\n         ],\n         "Re-establishing encrypted session": [\n            null,\n            "Przywacam sesję szyfrowaną"\n         ],\n         "Generating private key.": [\n            null,\n            "Generuję klucz prywatny."\n         ],\n         "Your browser might become unresponsive.": [\n            null,\n            "Twoja przeglądarka może nieco zwolnić."\n         ],\n         "Authentication request from %1$s\\n\\nYour chat contact is attempting to verify your identity, by asking you the question below.\\n\\n%2$s": [\n            null,\n            "Prośba o autoryzację od %1$s\\n\\nKontakt próbuje zweryfikować twoją tożsamość, zadając ci pytanie poniżej.\\n\\n%2$s"\n         ],\n         "Could not verify this user\'s identify.": [\n            null,\n            "Nie jestem w stanie zweryfikować tożsamości kontaktu."\n         ],\n         "Exchanging private key with contact.": [\n            null,\n            "Wymieniam klucze szyfrujące z kontaktem."\n         ],\n         "Your messages are not encrypted anymore": [\n            null,\n            "Twoje wiadomości nie są już szyfrowane"\n         ],\n         "Your messages are now encrypted but your contact\'s identity has not been verified.": [\n            null,\n            "Wiadomości są teraz szyfrowane, ale tożsamość kontaktu nie została zweryfikowana."\n         ],\n         "Your contact\'s identify has been verified.": [\n            null,\n            "Tożsamość kontaktu została zweryfikowana"\n         ],\n         "Your contact has ended encryption on their end, you should do the same.": [\n            null,\n            "Kontakt zakończył sesję szyfrowaną, powinieneś zrobić to samo."\n         ],\n         "Your message could not be sent": [\n            null,\n            "Twoja wiadomość nie została wysłana"\n         ],\n         "We received an unencrypted message": [\n            null,\n            "Otrzymaliśmy niezaszyfrowaną wiadomość"\n         ],\n         "We received an unreadable encrypted message": [\n            null,\n            "Otrzymaliśmy nieczytelną zaszyfrowaną wiadomość"\n         ],\n         "Here are the fingerprints, please confirm them with %1$s, outside of this chat.\\n\\nFingerprint for you, %2$s: %3$s\\n\\nFingerprint for %1$s: %4$s\\n\\nIf you have confirmed that the fingerprints match, click OK, otherwise click Cancel.": [\n            null,\n            "Oto odciski palców, potwiedź je proszę z %1$s używając innego sposobuwymiany informacji niż ta rozmowa.\\n\\nOdcisk palca dla ciebie, %2$s: %3$s\\n\\nOdcisk palca dla %1$s: %4$s\\n\\nJeśli odciski palców zostały potwierdzone, kliknij OK, w inny wypadku kliknij Anuluj."\n         ],\n         "You will be prompted to provide a security question and then an answer to that question.\\n\\nYour contact will then be prompted the same question and if they type the exact same answer (case sensitive), their identity will be verified.": [\n            null,\n            "Poprosimy cię o podanie pytania sprawdzającego i odpowiedzi na nie.\\n\\nTwój kontakt zostanie poproszony później o odpowiedź na to samo pytanie i jeśli udzieli tej samej odpowiedzi (ważna jest wielkość liter), tożsamość zostanie zweryfikowana."\n         ],\n         "What is your security question?": [\n            null,\n            "Jakie jest pytanie bezpieczeństwa?"\n         ],\n         "What is the answer to the security question?": [\n            null,\n            "Jaka jest odpowiedź na pytanie bezpieczeństwa?"\n         ],\n         "Invalid authentication scheme provided": [\n            null,\n            "Niewłaściwy schemat autoryzacji"\n         ],\n         "Your messages are not encrypted. Click here to enable OTR encryption.": [\n            null,\n            "Twoje wiadomości nie są szyfrowane. Kliknij, aby uruchomić szyfrowanie OTR"\n         ],\n         "Your messages are encrypted, but your contact has not been verified.": [\n            null,\n            "Wiadomości są szyfrowane, ale tożsamość kontaktu nie została zweryfikowana."\n         ],\n         "Your messages are encrypted and your contact verified.": [\n            null,\n            "Wiadomości są szyfrowane i tożsamość kontaktu została zweryfikowana."\n         ],\n         "Your contact has closed their end of the private session, you should do the same": [\n            null,\n            "Kontakt zakończył prywatną rozmowę i ty zrób to samo"\n         ],\n         "End encrypted conversation": [\n            null,\n            "Zakończ szyfrowaną rozmowę"\n         ],\n         "Refresh encrypted conversation": [\n            null,\n            "Odśwież szyfrowaną rozmowę"\n         ],\n         "Start encrypted conversation": [\n            null,\n            "Rozpocznij szyfrowaną rozmowę"\n         ],\n         "Verify with fingerprints": [\n            null,\n            "Zweryfikuj za pomocą odcisków palców"\n         ],\n         "Verify with SMP": [\n            null,\n            "Zweryfikuj za pomocą SMP"\n         ],\n         "What\'s this?": [\n            null,\n            "Co to jest?"\n         ],\n         "unencrypted": [\n            null,\n            "nieszyfrowane"\n         ],\n         "unverified": [\n            null,\n            "niezweryfikowane"\n         ],\n         "verified": [\n            null,\n            "zweryfikowane"\n         ],\n         "finished": [\n            null,\n            "zakończone"\n         ],\n         " e.g. conversejs.org": [\n            null,\n            "np. conversejs.org"\n         ],\n         "Your XMPP provider\'s domain name:": [\n            null,\n            "Domena twojego dostawcy XMPP:"\n         ],\n         "Fetch registration form": [\n            null,\n            "Pobierz formularz rejestracyjny"\n         ],\n         "Tip: A list of public XMPP providers is available": [\n            null,\n            "Wskazówka: dostępna jest lista publicznych dostawców XMPP"\n         ],\n         "here": [\n            null,\n            "tutaj"\n         ],\n         "Register": [\n            null,\n            "Zarejestruj się"\n         ],\n         "Sorry, the given provider does not support in band account registration. Please try with a different provider.": [\n            null,\n            "Przepraszamy, ale podany dostawca nie obsługuje rejestracji. Spróbuj wskazać innego dostawcę."\n         ],\n         "Requesting a registration form from the XMPP server": [\n            null,\n            "Pobieranie formularza rejestracyjnego z serwera XMPP"\n         ],\n         "Something went wrong while establishing a connection with \\"%1$s\\". Are you sure it exists?": [\n            null,\n            "Coś nie zadziałało przy próbie połączenia z \\"%1$s\\". Jesteś pewien że istnieje?"\n         ],\n         "Now logging you in": [\n            null,\n            "Jesteś logowany"\n         ],\n         "Registered successfully": [\n            null,\n            "Szczęśliwie zarejestrowany"\n         ],\n         "Return": [\n            null,\n            "Powrót"\n         ],\n         "The provider rejected your registration attempt. Please check the values you entered for correctness.": [\n            null,\n            "Dostawca odrzucił twoją próbę rejestracji. Sprawdź proszę poprawność danych które zostały wprowadzone."\n         ],\n         "Retry": [\n            null,\n            ""\n         ],\n         "This contact is busy": [\n            null,\n            "Kontakt jest zajęty"\n         ],\n         "This contact is online": [\n            null,\n            "Kontakt jest połączony"\n         ],\n         "This contact is offline": [\n            null,\n            "Kontakt jest niepołączony"\n         ],\n         "This contact is unavailable": [\n            null,\n            "Kontakt jest niedostępny"\n         ],\n         "This contact is away for an extended period": [\n            null,\n            "Kontakt jest nieobecny przez dłuższą chwilę"\n         ],\n         "This contact is away": [\n            null,\n            "Kontakt jest nieobecny"\n         ],\n         "Groups": [\n            null,\n            "Grupy"\n         ],\n         "My contacts": [\n            null,\n            "Moje kontakty"\n         ],\n         "Pending contacts": [\n            null,\n            "Kontakty oczekujące"\n         ],\n         "Contact requests": [\n            null,\n            "Zaproszenia do kontaktu"\n         ],\n         "Ungrouped": [\n            null,\n            "Niezgrupowane"\n         ],\n         "Filter": [\n            null,\n            "Filtr"\n         ],\n         "State": [\n            null,\n            "Stan"\n         ],\n         "Any": [\n            null,\n            "Dowolny"\n         ],\n         "Chatty": [\n            null,\n            "Gotowy do rozmowy"\n         ],\n         "Extended Away": [\n            null,\n            "Dłuższa nieobecność"\n         ],\n         "Click to remove this contact": [\n            null,\n            "Kliknij aby usunąć kontakt"\n         ],\n         "Click to accept this contact request": [\n            null,\n            "Klknij aby zaakceptować życzenie nawiązania kontaktu"\n         ],\n         "Click to decline this contact request": [\n            null,\n            "Kliknij aby odrzucić życzenie nawiązania kontaktu"\n         ],\n         "Click to chat with this contact": [\n            null,\n            "Kliknij aby porozmawiać z kontaktem"\n         ],\n         "Name": [\n            null,\n            "Nazwa"\n         ],\n         "Are you sure you want to remove this contact?": [\n            null,\n            "Czy potwierdzasz zamiar usnunięcia tego kontaktu?"\n         ],\n         "Sorry, there was an error while trying to remove ": [\n            null,\n            "Wystąpił błąd w trakcie próby usunięcia "\n         ],\n         "Are you sure you want to decline this contact request?": [\n            null,\n            "Czy potwierdzasz odrzucenie chęci nawiązania kontaktu?"\n         ]\n      }\n   }\n}';});


define('text!pt_BR',[],function () { return '{\n   "domain": "converse",\n   "locale_data": {\n      "converse": {\n         "": {\n            "domain": "converse",\n            "plural_forms": "nplurals=2; plural=(n > 1);",\n            "lang": "pt_BR"\n         },\n         "Bookmark this room": [\n            null,\n            ""\n         ],\n         "The name for this bookmark:": [\n            null,\n            ""\n         ],\n         "Would you like this room to be automatically joined upon startup?": [\n            null,\n            ""\n         ],\n         "What should your nickname for this room be?": [\n            null,\n            ""\n         ],\n         "Save": [\n            null,\n            "Salvar"\n         ],\n         "Cancel": [\n            null,\n            "Cancelar"\n         ],\n         "Sorry, something went wrong while trying to save your bookmark.": [\n            null,\n            ""\n         ],\n         "Bookmarked Rooms": [\n            null,\n            ""\n         ],\n         "Click to open this room": [\n            null,\n            "CLique para abrir a sala"\n         ],\n         "Show more information on this room": [\n            null,\n            "Mostrar mais informações nessa sala"\n         ],\n         "Remove this bookmark": [\n            null,\n            ""\n         ],\n         "Personal message": [\n            null,\n            "Mensagem pessoal"\n         ],\n         "Send": [\n            null,\n            ""\n         ],\n         "me": [\n            null,\n            "eu"\n         ],\n         "A very large message has been received.This might be due to an attack meant to degrade the chat performance.Output has been shortened.": [\n            null,\n            ""\n         ],\n         "Typing from another device": [\n            null,\n            ""\n         ],\n         "Stopped typing on the other device": [\n            null,\n            ""\n         ],\n         "Show this menu": [\n            null,\n            "Mostrar o menu"\n         ],\n         "Write in the third person": [\n            null,\n            "Escrever em terceira pessoa"\n         ],\n         "Remove messages": [\n            null,\n            "Remover mensagens"\n         ],\n         "Are you sure you want to clear the messages from this chat box?": [\n            null,\n            "Tem certeza que deseja limpar as mensagens dessa caixa?"\n         ],\n         "Insert a smiley": [\n            null,\n            ""\n         ],\n         "Start a call": [\n            null,\n            ""\n         ],\n         "Contacts": [\n            null,\n            "Contatos"\n         ],\n         "Password:": [\n            null,\n            "Senha:"\n         ],\n         "Log In": [\n            null,\n            "Entrar"\n         ],\n         "user@server": [\n            null,\n            ""\n         ],\n         "Sign in": [\n            null,\n            "Conectar-se"\n         ],\n         "I am %1$s": [\n            null,\n            "Estou %1$s"\n         ],\n         "Click here to write a custom status message": [\n            null,\n            "Clique aqui para customizar a mensagem de status"\n         ],\n         "Click to change your chat status": [\n            null,\n            "Clique para mudar seu status no chat"\n         ],\n         "Custom status": [\n            null,\n            "Status customizado"\n         ],\n         "online": [\n            null,\n            "online"\n         ],\n         "busy": [\n            null,\n            "ocupado"\n         ],\n         "away for long": [\n            null,\n            "ausente a bastante tempo"\n         ],\n         "away": [\n            null,\n            "ausente"\n         ],\n         "Online": [\n            null,\n            "Online"\n         ],\n         "Busy": [\n            null,\n            "Ocupado"\n         ],\n         "Away": [\n            null,\n            "Ausente"\n         ],\n         "Offline": [\n            null,\n            "Offline"\n         ],\n         "Contact name": [\n            null,\n            "Nome do contato"\n         ],\n         "Search": [\n            null,\n            "Procurar"\n         ],\n         "e.g. user@example.org": [\n            null,\n            ""\n         ],\n         "Add": [\n            null,\n            "Adicionar"\n         ],\n         "Click to add new chat contacts": [\n            null,\n            "Clique para adicionar novos contatos ao chat"\n         ],\n         "Add a contact": [\n            null,\n            "Adicionar contato"\n         ],\n         "No users found": [\n            null,\n            "Não foram encontrados usuários"\n         ],\n         "Click to add as a chat contact": [\n            null,\n            "Clique para adicionar como um contato do chat"\n         ],\n         "Toggle chat": [\n            null,\n            "Alternar bate-papo"\n         ],\n         "The connection has dropped, attempting to reconnect.": [\n            null,\n            ""\n         ],\n         "Connecting": [\n            null,\n            "Conectando"\n         ],\n         "Authenticating": [\n            null,\n            "Autenticando"\n         ],\n         "Authentication Failed": [\n            null,\n            "Falha de autenticação"\n         ],\n         "Sorry, there was an error while trying to add ": [\n            null,\n            ""\n         ],\n         "This client does not allow presence subscriptions": [\n            null,\n            ""\n         ],\n         "Minimize this chat box": [\n            null,\n            ""\n         ],\n         "Minimized": [\n            null,\n            "Minimizado"\n         ],\n         "This room is not anonymous": [\n            null,\n            "Essa sala não é anônima"\n         ],\n         "This room now shows unavailable members": [\n            null,\n            "Agora esta sala mostra membros indisponíveis"\n         ],\n         "This room does not show unavailable members": [\n            null,\n            "Essa sala não mostra membros indisponíveis"\n         ],\n         "Room logging is now enabled": [\n            null,\n            "O log da sala está ativado"\n         ],\n         "Room logging is now disabled": [\n            null,\n            "O log da sala está desativado"\n         ],\n         "This room is now semi-anonymous": [\n            null,\n            "Essa sala agora é semi anônima"\n         ],\n         "This room is now fully-anonymous": [\n            null,\n            "Essa sala agora é totalmente anônima"\n         ],\n         "A new room has been created": [\n            null,\n            "Uma nova sala foi criada"\n         ],\n         "You have been banned from this room": [\n            null,\n            "Você foi banido dessa sala"\n         ],\n         "You have been kicked from this room": [\n            null,\n            "Você foi expulso dessa sala"\n         ],\n         "You have been removed from this room because of an affiliation change": [\n            null,\n            "Você foi removido da sala devido a uma mudança de associação"\n         ],\n         "You have been removed from this room because the room has changed to members-only and you\'re not a member": [\n            null,\n            "Você foi removido da sala porque ela foi mudada para somente membrose você não é um membro"\n         ],\n         "You have been removed from this room because the MUC (Multi-user chat) service is being shut down.": [\n            null,\n            "Você foi removido da sala devido a MUC (Multi-user chat)o serviço está sendo desligado"\n         ],\n         "Message": [\n            null,\n            "Mensagem"\n         ],\n         "Hide the list of occupants": [\n            null,\n            ""\n         ],\n         "Error: the \\"": [\n            null,\n            ""\n         ],\n         "Error: could not execute the command": [\n            null,\n            ""\n         ],\n         "Change user\'s affiliation to admin": [\n            null,\n            ""\n         ],\n         "Change user role to occupant": [\n            null,\n            ""\n         ],\n         "Grant membership to a user": [\n            null,\n            ""\n         ],\n         "Remove user\'s ability to post messages": [\n            null,\n            ""\n         ],\n         "Change your nickname": [\n            null,\n            ""\n         ],\n         "Grant moderator role to user": [\n            null,\n            ""\n         ],\n         "Revoke user\'s membership": [\n            null,\n            ""\n         ],\n         "Set room subject (alias for /subject)": [\n            null,\n            ""\n         ],\n         "Allow muted user to post messages": [\n            null,\n            ""\n         ],\n         "The nickname you chose is reserved or currently in use, please choose a different one.": [\n            null,\n            ""\n         ],\n         "Please choose your nickname": [\n            null,\n            ""\n         ],\n         "Nickname": [\n            null,\n            "Apelido"\n         ],\n         "This chatroom requires a password": [\n            null,\n            "Esse chat precisa de senha"\n         ],\n         "Password: ": [\n            null,\n            "Senha: "\n         ],\n         "Submit": [\n            null,\n            "Enviar"\n         ],\n         "The reason given is: \\"%1$s\\".": [\n            null,\n            ""\n         ],\n         "The reason given is: \\"": [\n            null,\n            ""\n         ],\n         " has left the room. \\"": [\n            null,\n            ""\n         ],\n         " has joined the room. \\"": [\n            null,\n            ""\n         ],\n         " has joined the room.": [\n            null,\n            ""\n         ],\n         "Topic set by %1$s to: %2$s": [\n            null,\n            "Topico definido por %1$s para: %2$s"\n         ],\n         "Invite": [\n            null,\n            ""\n         ],\n         "Hidden": [\n            null,\n            "Escondido"\n         ],\n         "Message archiving": [\n            null,\n            ""\n         ],\n         "Members only": [\n            null,\n            ""\n         ],\n         "Moderated": [\n            null,\n            "Moderado"\n         ],\n         "Non-anonymous": [\n            null,\n            "Não anônimo"\n         ],\n         "Persistent": [\n            null,\n            ""\n         ],\n         "Public": [\n            null,\n            "Público"\n         ],\n         "Semi-anonymous": [\n            null,\n            "Semi anônimo"\n         ],\n         "Unmoderated": [\n            null,\n            "Sem moderação"\n         ],\n         "Unsecured": [\n            null,\n            ""\n         ],\n         "Messages are archived on the server": [\n            null,\n            ""\n         ],\n         "All other room occupants can see your Jabber ID": [\n            null,\n            ""\n         ],\n         "This room persists even if it\'s unoccupied": [\n            null,\n            ""\n         ],\n         "Only moderators can see your Jabber ID": [\n            null,\n            ""\n         ],\n         "This room will disappear once the last person leaves": [\n            null,\n            ""\n         ],\n         "You are about to invite %1$s to the chat room \\"%2$s\\". ": [\n            null,\n            ""\n         ],\n         "You may optionally include a message, explaining the reason for the invitation.": [\n            null,\n            ""\n         ],\n         "Room name": [\n            null,\n            "Nome da sala"\n         ],\n         "Server": [\n            null,\n            "Server"\n         ],\n         "Show rooms": [\n            null,\n            "Mostar salas"\n         ],\n         "Rooms": [\n            null,\n            "Salas"\n         ],\n         "No rooms on %1$s": [\n            null,\n            "Sem salas em %1$s"\n         ],\n         "Rooms on %1$s": [\n            null,\n            "Salas em %1$s"\n         ],\n         "Description:": [\n            null,\n            "Descrição:"\n         ],\n         "Occupants:": [\n            null,\n            "Ocupantes:"\n         ],\n         "Features:": [\n            null,\n            "Recursos:"\n         ],\n         "Requires authentication": [\n            null,\n            "Requer autenticação"\n         ],\n         "Requires an invitation": [\n            null,\n            "Requer um convite"\n         ],\n         "Open room": [\n            null,\n            "Sala aberta"\n         ],\n         "Permanent room": [\n            null,\n            "Sala permanente"\n         ],\n         "Temporary room": [\n            null,\n            "Sala temporária"\n         ],\n         "%1$s has invited you to join a chat room: %2$s": [\n            null,\n            ""\n         ],\n         "%1$s has invited you to join a chat room: %2$s, and left the following reason: \\"%3$s\\"": [\n            null,\n            ""\n         ],\n         "Notification from %1$s": [\n            null,\n            ""\n         ],\n         "%1$s says": [\n            null,\n            ""\n         ],\n         "wants to be your contact": [\n            null,\n            ""\n         ],\n         "Re-establishing encrypted session": [\n            null,\n            "Reestabelecendo sessão criptografada"\n         ],\n         "Generating private key.": [\n            null,\n            "Gerando chave-privada."\n         ],\n         "Your browser might become unresponsive.": [\n            null,\n            "Seu navegador pode parar de responder."\n         ],\n         "Could not verify this user\'s identify.": [\n            null,\n            "Não foi possível verificar a identidade deste usuário."\n         ],\n         "Your messages are not encrypted anymore": [\n            null,\n            "Suas mensagens não estão mais criptografadas"\n         ],\n         "Your message could not be sent": [\n            null,\n            "Sua mensagem não pode ser enviada"\n         ],\n         "We received an unencrypted message": [\n            null,\n            "Recebemos uma mensagem não-criptografada"\n         ],\n         "We received an unreadable encrypted message": [\n            null,\n            "Recebemos uma mensagem não-criptografada ilegível"\n         ],\n         "Here are the fingerprints, please confirm them with %1$s, outside of this chat.\\n\\nFingerprint for you, %2$s: %3$s\\n\\nFingerprint for %1$s: %4$s\\n\\nIf you have confirmed that the fingerprints match, click OK, otherwise click Cancel.": [\n            null,\n            "Aqui estão as assinaturas digitais, por favor confirme elas com %1$s, fora deste chat.\\n\\nAssinatura para você, %2$s: %3$s\\n\\nAssinatura para %1$s: %4$s\\n\\nSe você tiver confirmado que as assinaturas conferem, clique OK, caso contrário, clique Cancelar."\n         ],\n         "What is your security question?": [\n            null,\n            "Qual é a sua pergunta de segurança?"\n         ],\n         "What is the answer to the security question?": [\n            null,\n            "Qual é a resposta para a pergunta de segurança?"\n         ],\n         "Invalid authentication scheme provided": [\n            null,\n            "Schema de autenticação fornecido é inválido"\n         ],\n         "Your messages are not encrypted. Click here to enable OTR encryption.": [\n            null,\n            "Suas mensagens não estão criptografadas. Clique aqui para habilitar criptografia OTR."\n         ],\n         "End encrypted conversation": [\n            null,\n            "Finalizar conversa criptografada"\n         ],\n         "Refresh encrypted conversation": [\n            null,\n            "Atualizar conversa criptografada"\n         ],\n         "Start encrypted conversation": [\n            null,\n            "Iniciar conversa criptografada"\n         ],\n         "Verify with fingerprints": [\n            null,\n            "Verificar com assinatura digital"\n         ],\n         "Verify with SMP": [\n            null,\n            "Verificar com SMP"\n         ],\n         "What\'s this?": [\n            null,\n            "O que é isso?"\n         ],\n         "unencrypted": [\n            null,\n            "não-criptografado"\n         ],\n         "unverified": [\n            null,\n            "não-verificado"\n         ],\n         "verified": [\n            null,\n            "verificado"\n         ],\n         "finished": [\n            null,\n            "finalizado"\n         ],\n         " e.g. conversejs.org": [\n            null,\n            ""\n         ],\n         "Your XMPP provider\'s domain name:": [\n            null,\n            ""\n         ],\n         "Fetch registration form": [\n            null,\n            ""\n         ],\n         "Tip: A list of public XMPP providers is available": [\n            null,\n            ""\n         ],\n         "here": [\n            null,\n            ""\n         ],\n         "Register": [\n            null,\n            ""\n         ],\n         "Sorry, the given provider does not support in band account registration. Please try with a different provider.": [\n            null,\n            ""\n         ],\n         "Requesting a registration form from the XMPP server": [\n            null,\n            ""\n         ],\n         "Something went wrong while establishing a connection with \\"%1$s\\". Are you sure it exists?": [\n            null,\n            ""\n         ],\n         "Now logging you in": [\n            null,\n            ""\n         ],\n         "Registered successfully": [\n            null,\n            ""\n         ],\n         "Return": [\n            null,\n            ""\n         ],\n         "The provider rejected your registration attempt. Please check the values you entered for correctness.": [\n            null,\n            ""\n         ],\n         "Retry": [\n            null,\n            ""\n         ],\n         "This contact is busy": [\n            null,\n            "Este contato está ocupado"\n         ],\n         "This contact is online": [\n            null,\n            "Este contato está online"\n         ],\n         "This contact is offline": [\n            null,\n            "Este contato está offline"\n         ],\n         "This contact is unavailable": [\n            null,\n            "Este contato está indisponível"\n         ],\n         "This contact is away for an extended period": [\n            null,\n            "Este contato está ausente por um longo período"\n         ],\n         "This contact is away": [\n            null,\n            "Este contato está ausente"\n         ],\n         "Groups": [\n            null,\n            ""\n         ],\n         "My contacts": [\n            null,\n            "Meus contatos"\n         ],\n         "Pending contacts": [\n            null,\n            "Contados pendentes"\n         ],\n         "Contact requests": [\n            null,\n            "Solicitação de contatos"\n         ],\n         "Ungrouped": [\n            null,\n            ""\n         ],\n         "Filter": [\n            null,\n            ""\n         ],\n         "State": [\n            null,\n            ""\n         ],\n         "Any": [\n            null,\n            ""\n         ],\n         "Chatty": [\n            null,\n            ""\n         ],\n         "Extended Away": [\n            null,\n            ""\n         ],\n         "Click to remove this contact": [\n            null,\n            "Clique para remover o contato"\n         ],\n         "Click to chat with this contact": [\n            null,\n            "Clique para conversar com o contato"\n         ],\n         "Name": [\n            null,\n            ""\n         ],\n         "Sorry, there was an error while trying to remove ": [\n            null,\n            ""\n         ]\n      }\n   }\n}';});


define('text!ru',[],function () { return '{\n   "domain": "converse",\n   "locale_data": {\n      "converse": {\n         "": {\n            "domain": "converse",\n            "lang": "ru"\n         },\n         "Bookmark this room": [\n            null,\n            ""\n         ],\n         "The name for this bookmark:": [\n            null,\n            ""\n         ],\n         "Would you like this room to be automatically joined upon startup?": [\n            null,\n            ""\n         ],\n         "What should your nickname for this room be?": [\n            null,\n            ""\n         ],\n         "Save": [\n            null,\n            "Сохранить"\n         ],\n         "Cancel": [\n            null,\n            "Отменить"\n         ],\n         "Bookmarked Rooms": [\n            null,\n            ""\n         ],\n         "Click to open this room": [\n            null,\n            "Зайти в чат"\n         ],\n         "Show more information on this room": [\n            null,\n            "Показать больше информации об этом чате"\n         ],\n         "Remove this bookmark": [\n            null,\n            ""\n         ],\n         "Close this chat box": [\n            null,\n            "Закрыть это окно чата"\n         ],\n         "Personal message": [\n            null,\n            "Ваше сообщение"\n         ],\n         "Send": [\n            null,\n            ""\n         ],\n         "me": [\n            null,\n            "Я"\n         ],\n         "A very large message has been received.This might be due to an attack meant to degrade the chat performance.Output has been shortened.": [\n            null,\n            ""\n         ],\n         "Typing from another device": [\n            null,\n            ""\n         ],\n         "is typing": [\n            null,\n            "набирает текст"\n         ],\n         "Stopped typing on the other device": [\n            null,\n            ""\n         ],\n         "has stopped typing": [\n            null,\n            "перестал набирать"\n         ],\n         "has gone away": [\n            null,\n            "отошёл"\n         ],\n         "Show this menu": [\n            null,\n            "Показать это меню"\n         ],\n         "Write in the third person": [\n            null,\n            "Вписать третьего человека"\n         ],\n         "Remove messages": [\n            null,\n            "Удалить сообщения"\n         ],\n         "Are you sure you want to clear the messages from this chat box?": [\n            null,\n            "Вы уверены, что хотите очистить сообщения из окна чата?"\n         ],\n         "has gone offline": [\n            null,\n            "вышел из сети"\n         ],\n         "is busy": [\n            null,\n            "занят"\n         ],\n         "Clear all messages": [\n            null,\n            "Очистить все сообщения"\n         ],\n         "Insert a smiley": [\n            null,\n            "Вставить смайлик"\n         ],\n         "Start a call": [\n            null,\n            "Инициировать звонок"\n         ],\n         "Contacts": [\n            null,\n            "Контакты"\n         ],\n         "XMPP Username:": [\n            null,\n            "XMPP Username:"\n         ],\n         "Password:": [\n            null,\n            "Пароль:"\n         ],\n         "Click here to log in anonymously": [\n            null,\n            "Нажмите здесь, чтобы войти анонимно"\n         ],\n         "Log In": [\n            null,\n            "Войти"\n         ],\n         "user@server": [\n            null,\n            "user@server"\n         ],\n         "password": [\n            null,\n            "пароль"\n         ],\n         "Sign in": [\n            null,\n            "Вход"\n         ],\n         "I am %1$s": [\n            null,\n            "Я %1$s"\n         ],\n         "Click here to write a custom status message": [\n            null,\n            "Редактировать произвольный статус"\n         ],\n         "Click to change your chat status": [\n            null,\n            "Изменить ваш статус"\n         ],\n         "Custom status": [\n            null,\n            "Произвольный статус"\n         ],\n         "online": [\n            null,\n            "на связи"\n         ],\n         "busy": [\n            null,\n            "занят"\n         ],\n         "away for long": [\n            null,\n            "отошёл надолго"\n         ],\n         "away": [\n            null,\n            "отошёл"\n         ],\n         "Online": [\n            null,\n            "В сети"\n         ],\n         "Busy": [\n            null,\n            "Занят"\n         ],\n         "Away": [\n            null,\n            "Отошёл"\n         ],\n         "Offline": [\n            null,\n            "Не в сети"\n         ],\n         "Log out": [\n            null,\n            "Выйти"\n         ],\n         "Contact name": [\n            null,\n            "Имя контакта"\n         ],\n         "Search": [\n            null,\n            "Поиск"\n         ],\n         "Add": [\n            null,\n            "Добавить"\n         ],\n         "Click to add new chat contacts": [\n            null,\n            "Добавить новый чат"\n         ],\n         "Add a contact": [\n            null,\n            "Добавть контакт"\n         ],\n         "No users found": [\n            null,\n            "Пользователи не найдены"\n         ],\n         "Click to add as a chat contact": [\n            null,\n            "Кликните, чтобы добавить контакт"\n         ],\n         "Toggle chat": [\n            null,\n            "Включить чат"\n         ],\n         "The connection has dropped, attempting to reconnect.": [\n            null,\n            ""\n         ],\n         "Connecting": [\n            null,\n            "Соединение"\n         ],\n         "Authenticating": [\n            null,\n            "Авторизация"\n         ],\n         "Authentication Failed": [\n            null,\n            "Не удалось авторизоваться"\n         ],\n         "Sorry, there was an error while trying to add ": [\n            null,\n            "Возникла ошибка при добавлении "\n         ],\n         "This client does not allow presence subscriptions": [\n            null,\n            "Программа не поддерживает уведомления о статусе"\n         ],\n         "Click to hide these contacts": [\n            null,\n            "Кликните, чтобы спрятать эти контакты"\n         ],\n         "Minimize this chat box": [\n            null,\n            "Свернуть окно чата"\n         ],\n         "Click to restore this chat": [\n            null,\n            "Кликните, чтобы развернуть чат"\n         ],\n         "Minimized": [\n            null,\n            "Свёрнуто"\n         ],\n         "This room is not anonymous": [\n            null,\n            "Этот чат не анонимный"\n         ],\n         "This room now shows unavailable members": [\n            null,\n            "Этот чат показывает недоступных собеседников"\n         ],\n         "This room does not show unavailable members": [\n            null,\n            "Этот чат не показывает недоступных собеседников"\n         ],\n         "Room logging is now enabled": [\n            null,\n            "Протокол чата включен"\n         ],\n         "Room logging is now disabled": [\n            null,\n            "Протокол чата выключен"\n         ],\n         "This room is now semi-anonymous": [\n            null,\n            "Этот чат частично анонимный"\n         ],\n         "This room is now fully-anonymous": [\n            null,\n            "Этот чат стал полностью анонимный"\n         ],\n         "A new room has been created": [\n            null,\n            "Появился новый чат"\n         ],\n         "You have been banned from this room": [\n            null,\n            "Вам запрещено подключатся к этому чату"\n         ],\n         "You have been kicked from this room": [\n            null,\n            "Вас выкинули из чата"\n         ],\n         "You have been removed from this room because of an affiliation change": [\n            null,\n            "Вас удалили из-за изменения прав"\n         ],\n         "You have been removed from this room because the room has changed to members-only and you\'re not a member": [\n            null,\n            "Вы отключены от чата, потому что он теперь только для участников"\n         ],\n         "You have been removed from this room because the MUC (Multi-user chat) service is being shut down.": [\n            null,\n            "Вы отключены от этого чата, потому что службы чатов отключилась."\n         ],\n         "Message": [\n            null,\n            "Сообщение"\n         ],\n         "Hide the list of occupants": [\n            null,\n            "Спрятать список участников"\n         ],\n         "Error: the \\"": [\n            null,\n            "Ошибка:  \\""\n         ],\n         "Are you sure you want to clear the messages from this room?": [\n            null,\n            "Вы уверены, что хотите очистить сообщения из этого чата?"\n         ],\n         "Error: could not execute the command": [\n            null,\n            "Ошибка: невозможно выполнить команду"\n         ],\n         "Change user\'s affiliation to admin": [\n            null,\n            "Дать права администратора"\n         ],\n         "Ban user from room": [\n            null,\n            "Забанить пользователя в этом чате."\n         ],\n         "Change user role to occupant": [\n            null,\n            "Изменить роль пользователя на \\"участник\\""\n         ],\n         "Kick user from room": [\n            null,\n            "Удалить пользователя из чата."\n         ],\n         "Grant membership to a user": [\n            null,\n            "Сделать пользователя участником"\n         ],\n         "Remove user\'s ability to post messages": [\n            null,\n            "Запретить отправку сообщений"\n         ],\n         "Change your nickname": [\n            null,\n            "Изменить свой псевдоним"\n         ],\n         "Grant moderator role to user": [\n            null,\n            "Предоставить права модератора пользователю"\n         ],\n         "Grant ownership of this room": [\n            null,\n            "Предоставить права владельца на этот чат"\n         ],\n         "Revoke user\'s membership": [\n            null,\n            "Отозвать членство пользователя"\n         ],\n         "Set room subject (alias for /subject)": [\n            null,\n            ""\n         ],\n         "Allow muted user to post messages": [\n            null,\n            "Разрешить заглушенным пользователям отправлять сообщения"\n         ],\n         "The nickname you chose is reserved or currently in use, please choose a different one.": [\n            null,\n            ""\n         ],\n         "Nickname": [\n            null,\n            "Псевдоним"\n         ],\n         "This chatroom requires a password": [\n            null,\n            "Для доступа в чат необходим пароль."\n         ],\n         "Password: ": [\n            null,\n            "Пароль: "\n         ],\n         "Submit": [\n            null,\n            "Отправить"\n         ],\n         " has left the room. \\"": [\n            null,\n            ""\n         ],\n         " has joined the room. \\"": [\n            null,\n            ""\n         ],\n         " has joined the room.": [\n            null,\n            ""\n         ],\n         "Topic set by %1$s to: %2$s": [\n            null,\n            "Тема %2$s устатновлена %1$s"\n         ],\n         "Occupants": [\n            null,\n            "Участники:"\n         ],\n         "Invite": [\n            null,\n            "Пригласить"\n         ],\n         "Hidden": [\n            null,\n            "Скрыто"\n         ],\n         "Message archiving": [\n            null,\n            ""\n         ],\n         "Members only": [\n            null,\n            ""\n         ],\n         "Moderated": [\n            null,\n            "Модерируемая"\n         ],\n         "Non-anonymous": [\n            null,\n            "Не анонимная"\n         ],\n         "Persistent": [\n            null,\n            ""\n         ],\n         "Public": [\n            null,\n            "Публичный"\n         ],\n         "Semi-anonymous": [\n            null,\n            "Частично анонимный"\n         ],\n         "Unmoderated": [\n            null,\n            "Немодерируемый"\n         ],\n         "Unsecured": [\n            null,\n            ""\n         ],\n         "Messages are archived on the server": [\n            null,\n            ""\n         ],\n         "All other room occupants can see your Jabber ID": [\n            null,\n            ""\n         ],\n         "This room persists even if it\'s unoccupied": [\n            null,\n            ""\n         ],\n         "Only moderators can see your Jabber ID": [\n            null,\n            ""\n         ],\n         "This room will disappear once the last person leaves": [\n            null,\n            ""\n         ],\n         "You are about to invite %1$s to the chat room \\"%2$s\\". ": [\n            null,\n            "Вы собираетесь пригласить %1$s в чат \\"%2$s\\". "\n         ],\n         "You may optionally include a message, explaining the reason for the invitation.": [\n            null,\n            "Вы можете дополнительно вставить сообщение, объясняющее причину приглашения."\n         ],\n         "Room name": [\n            null,\n            "Имя чата"\n         ],\n         "Server": [\n            null,\n            "Сервер"\n         ],\n         "Join Room": [\n            null,\n            "Присоединться к чату"\n         ],\n         "Show rooms": [\n            null,\n            "Показать чаты"\n         ],\n         "Rooms": [\n            null,\n            "Чаты"\n         ],\n         "No rooms on %1$s": [\n            null,\n            "Нет чатов %1$s"\n         ],\n         "Rooms on %1$s": [\n            null,\n            "Чаты %1$s:"\n         ],\n         "Description:": [\n            null,\n            "Описание:"\n         ],\n         "Occupants:": [\n            null,\n            "Участники:"\n         ],\n         "Features:": [\n            null,\n            "Свойства:"\n         ],\n         "Requires authentication": [\n            null,\n            "Требуется авторизация"\n         ],\n         "Requires an invitation": [\n            null,\n            "Требуется приглашение"\n         ],\n         "Open room": [\n            null,\n            "Открыть чат"\n         ],\n         "Permanent room": [\n            null,\n            "Постоянный чат"\n         ],\n         "Temporary room": [\n            null,\n            "Временный чат"\n         ],\n         "%1$s has invited you to join a chat room: %2$s": [\n            null,\n            "%1$s пригласил вас в чат: %2$s"\n         ],\n         "%1$s has invited you to join a chat room: %2$s, and left the following reason: \\"%3$s\\"": [\n            null,\n            "%1$s пригласил вас в чат: %2$s, по следующей причине: \\"%3$s\\""\n         ],\n         "Notification from %1$s": [\n            null,\n            ""\n         ],\n         "%1$s says": [\n            null,\n            ""\n         ],\n         "wants to be your contact": [\n            null,\n            ""\n         ],\n         "Re-establishing encrypted session": [\n            null,\n            "Восстанавливается зашифрованная сессия"\n         ],\n         "Generating private key.": [\n            null,\n            "Генерируется секретный ключ"\n         ],\n         "Your browser might become unresponsive.": [\n            null,\n            "Ваш браузер может зависнуть."\n         ],\n         "Authentication request from %1$s\\n\\nYour chat contact is attempting to verify your identity, by asking you the question below.\\n\\n%2$s": [\n            null,\n            "Аутентификационный запрос %1$s\\n\\nВаш контакт из чата пытается проверить вашу подлинность, задав вам следующий котрольный вопрос.\\n\\n%2$s"\n         ],\n         "Could not verify this user\'s identify.": [\n            null,\n            "Не удалось проверить подлинность этого пользователя."\n         ],\n         "Exchanging private key with contact.": [\n            null,\n            "Обмен секретным ключом с контактом."\n         ],\n         "Your messages are not encrypted anymore": [\n            null,\n            "Ваши сообщения больше не шифруются"\n         ],\n         "Your contact has ended encryption on their end, you should do the same.": [\n            null,\n            "Ваш контакт закончил шифрование у себя, вы должны сделать тоже самое."\n         ],\n         "Your message could not be sent": [\n            null,\n            "Ваше сообщение не отправлено"\n         ],\n         "We received an unencrypted message": [\n            null,\n            "Вы получили незашифрованное сообщение"\n         ],\n         "We received an unreadable encrypted message": [\n            null,\n            "Вы получили нечитаемое зашифрованное сообщение"\n         ],\n         "Here are the fingerprints, please confirm them with %1$s, outside of this chat.\\n\\nFingerprint for you, %2$s: %3$s\\n\\nFingerprint for %1$s: %4$s\\n\\nIf you have confirmed that the fingerprints match, click OK, otherwise click Cancel.": [\n            null,\n            "Вот отпечатки, пожалуйста подтвердите их с помощью %1$s вне этого чата.\\n\\nОтпечатки для Вас, %2$s: %3$s\\n\\nОтпечаток для %1$s: %4$s\\n\\nЕсли вы удостоверились, что отпечатки совпадают, нажмите OK; если нет нажмите Отмена"\n         ],\n         "You will be prompted to provide a security question and then an answer to that question.\\n\\nYour contact will then be prompted the same question and if they type the exact same answer (case sensitive), their identity will be verified.": [\n            null,\n            "Вам будет предложено создать контрольный вопрос и ответ на этот вопрос.\\n\\nВашему контакту будет задан этот вопрос, и если ответы совпадут (с учётом регистра), его подлинность будет подтверждена."\n         ],\n         "What is your security question?": [\n            null,\n            "Введите секретный вопрос"\n         ],\n         "What is the answer to the security question?": [\n            null,\n            "Ответ на секретный вопрос"\n         ],\n         "Invalid authentication scheme provided": [\n            null,\n            "Некоррекная схема аутентификации"\n         ],\n         "Your messages are not encrypted. Click here to enable OTR encryption.": [\n            null,\n            "Ваши сообщения не шифруются. Нажмите здесь, чтобы настроить шифрование."\n         ],\n         "Your contact has closed their end of the private session, you should do the same": [\n            null,\n            "Ваш контакт закрыл свою часть приватной сессии, вы должны сделать тоже самое."\n         ],\n         "End encrypted conversation": [\n            null,\n            "Закончить шифрованную беседу"\n         ],\n         "Refresh encrypted conversation": [\n            null,\n            "Обновить шифрованную беседу"\n         ],\n         "Start encrypted conversation": [\n            null,\n            "Начать шифрованный разговор"\n         ],\n         "Verify with fingerprints": [\n            null,\n            "Проверить при помощи отпечатков"\n         ],\n         "Verify with SMP": [\n            null,\n            "Проверить при помощи SMP"\n         ],\n         "What\'s this?": [\n            null,\n            "Что это?"\n         ],\n         "unencrypted": [\n            null,\n            "не зашифровано"\n         ],\n         "unverified": [\n            null,\n            "не проверено"\n         ],\n         "verified": [\n            null,\n            "проверено"\n         ],\n         "finished": [\n            null,\n            "закончено"\n         ],\n         " e.g. conversejs.org": [\n            null,\n            "например, conversejs.org"\n         ],\n         "Your XMPP provider\'s domain name:": [\n            null,\n            ""\n         ],\n         "Fetch registration form": [\n            null,\n            "Получить форму регистрации"\n         ],\n         "Tip: A list of public XMPP providers is available": [\n            null,\n            "Совет. Список публичных XMPP провайдеров доступен"\n         ],\n         "here": [\n            null,\n            "здесь"\n         ],\n         "Register": [\n            null,\n            "Регистрация"\n         ],\n         "Sorry, the given provider does not support in band account registration. Please try with a different provider.": [\n            null,\n            "К сожалению, провайдер не поддерживает регистрацию аккаунта через клиентское приложение. Пожалуйста попробуйте выбрать другого провайдера."\n         ],\n         "Requesting a registration form from the XMPP server": [\n            null,\n            "Запрашивается регистрационная форма с XMPP сервера"\n         ],\n         "Something went wrong while establishing a connection with \\"%1$s\\". Are you sure it exists?": [\n            null,\n            "Что-то пошло не так при установке связи с \\"%1$s\\". Вы уверены, что такой адрес существует?"\n         ],\n         "Now logging you in": [\n            null,\n            "Осуществляется вход"\n         ],\n         "Registered successfully": [\n            null,\n            "Зарегистрирован успешно"\n         ],\n         "Return": [\n            null,\n            "Назад"\n         ],\n         "The provider rejected your registration attempt. Please check the values you entered for correctness.": [\n            null,\n            "Провайдер отклонил вашу попытку зарегистрироваться. Пожалуйста, проверьте, правильно ли введены значения."\n         ],\n         "Retry": [\n            null,\n            ""\n         ],\n         "This contact is busy": [\n            null,\n            "Занят"\n         ],\n         "This contact is online": [\n            null,\n            "В сети"\n         ],\n         "This contact is offline": [\n            null,\n            "Не в сети"\n         ],\n         "This contact is unavailable": [\n            null,\n            "Недоступен"\n         ],\n         "This contact is away for an extended period": [\n            null,\n            "Надолго отошёл"\n         ],\n         "This contact is away": [\n            null,\n            "Отошёл"\n         ],\n         "Groups": [\n            null,\n            "Группы"\n         ],\n         "My contacts": [\n            null,\n            "Контакты"\n         ],\n         "Pending contacts": [\n            null,\n            "Собеседники, ожидающие авторизации"\n         ],\n         "Contact requests": [\n            null,\n            "Запросы на авторизацию"\n         ],\n         "Ungrouped": [\n            null,\n            "Несгруппированные"\n         ],\n         "Filter": [\n            null,\n            ""\n         ],\n         "State": [\n            null,\n            ""\n         ],\n         "Any": [\n            null,\n            ""\n         ],\n         "Chatty": [\n            null,\n            ""\n         ],\n         "Extended Away": [\n            null,\n            ""\n         ],\n         "Click to remove this contact": [\n            null,\n            "Удалить контакт"\n         ],\n         "Click to accept this contact request": [\n            null,\n            "Кликните, чтобы принять запрос этого контакта"\n         ],\n         "Click to decline this contact request": [\n            null,\n            "Кликните, чтобы отклонить запрос этого контакта"\n         ],\n         "Click to chat with this contact": [\n            null,\n            "Кликните, чтобы начать общение"\n         ],\n         "Name": [\n            null,\n            "Имя"\n         ],\n         "Are you sure you want to remove this contact?": [\n            null,\n            "Вы уверены, что хотите удалить этот контакт?"\n         ],\n         "Sorry, there was an error while trying to remove ": [\n            null,\n            "Возникла ошибка при удалении "\n         ],\n         "Are you sure you want to decline this contact request?": [\n            null,\n            "Вы уверены, что хотите отклонить запрос от этого контакта?"\n         ]\n      }\n   }\n}';});


define('text!uk',[],function () { return '{\n   "domain": "converse",\n   "locale_data": {\n      "converse": {\n         "": {\n            "domain": "converse",\n            "plural_forms": "nplurals=3; plural=(n%10==1 && n%100!=11 ? 0 : n%10>=2 && n%10<=4 && (n%100<10 || n%100>=20) ? 1 : 2);",\n            "lang": "uk"\n         },\n         "Bookmark this room": [\n            null,\n            ""\n         ],\n         "The name for this bookmark:": [\n            null,\n            ""\n         ],\n         "Would you like this room to be automatically joined upon startup?": [\n            null,\n            ""\n         ],\n         "What should your nickname for this room be?": [\n            null,\n            ""\n         ],\n         "Save": [\n            null,\n            "Зберегти"\n         ],\n         "Cancel": [\n            null,\n            "Відміна"\n         ],\n         "Sorry, something went wrong while trying to save your bookmark.": [\n            null,\n            ""\n         ],\n         "Bookmarked Rooms": [\n            null,\n            ""\n         ],\n         "Click to open this room": [\n            null,\n            "Клацніть, щоб увійти в цю кімнату"\n         ],\n         "Show more information on this room": [\n            null,\n            "Показати більше інформації про цю кімату"\n         ],\n         "Remove this bookmark": [\n            null,\n            ""\n         ],\n         "Personal message": [\n            null,\n            "Персональна вісточка"\n         ],\n         "Send": [\n            null,\n            ""\n         ],\n         "me": [\n            null,\n            "я"\n         ],\n         "A very large message has been received.This might be due to an attack meant to degrade the chat performance.Output has been shortened.": [\n            null,\n            ""\n         ],\n         "Typing from another device": [\n            null,\n            ""\n         ],\n         "is typing": [\n            null,\n            "друкує"\n         ],\n         "Stopped typing on the other device": [\n            null,\n            ""\n         ],\n         "has stopped typing": [\n            null,\n            "припинив друкувати"\n         ],\n         "has gone away": [\n            null,\n            "пішов геть"\n         ],\n         "Show this menu": [\n            null,\n            "Показати це меню"\n         ],\n         "Write in the third person": [\n            null,\n            "Писати від третьої особи"\n         ],\n         "Remove messages": [\n            null,\n            "Видалити повідомлення"\n         ],\n         "Are you sure you want to clear the messages from this chat box?": [\n            null,\n            "Ви впевнені, що хочете очистити повідомлення з цього вікна чату?"\n         ],\n         "has gone offline": [\n            null,\n            "тепер поза мережею"\n         ],\n         "is busy": [\n            null,\n            "зайнятий"\n         ],\n         "Clear all messages": [\n            null,\n            "Очистити всі повідомлення"\n         ],\n         "Insert a smiley": [\n            null,\n            ""\n         ],\n         "Start a call": [\n            null,\n            "Почати виклик"\n         ],\n         "Contacts": [\n            null,\n            "Контакти"\n         ],\n         "XMPP Username:": [\n            null,\n            "XMPP адреса:"\n         ],\n         "Password:": [\n            null,\n            "Пароль:"\n         ],\n         "Log In": [\n            null,\n            "Ввійти"\n         ],\n         "user@server": [\n            null,\n            ""\n         ],\n         "Sign in": [\n            null,\n            "Вступити"\n         ],\n         "I am %1$s": [\n            null,\n            "Я %1$s"\n         ],\n         "Click here to write a custom status message": [\n            null,\n            "Клацніть тут, щоб створити власний статус"\n         ],\n         "Click to change your chat status": [\n            null,\n            "Клацніть, щоб змінити статус в чаті"\n         ],\n         "Custom status": [\n            null,\n            "Власний статус"\n         ],\n         "online": [\n            null,\n            "на зв\'язку"\n         ],\n         "busy": [\n            null,\n            "зайнятий"\n         ],\n         "away for long": [\n            null,\n            "давно відсутній"\n         ],\n         "away": [\n            null,\n            "відсутній"\n         ],\n         "Online": [\n            null,\n            "На зв\'язку"\n         ],\n         "Busy": [\n            null,\n            "Зайнятий"\n         ],\n         "Away": [\n            null,\n            "Далеко"\n         ],\n         "Offline": [\n            null,\n            "Поза мережею"\n         ],\n         "Log out": [\n            null,\n            "Вийти"\n         ],\n         "Contact name": [\n            null,\n            "Назва контакту"\n         ],\n         "Search": [\n            null,\n            "Пошук"\n         ],\n         "e.g. user@example.org": [\n            null,\n            ""\n         ],\n         "Add": [\n            null,\n            "Додати"\n         ],\n         "Click to add new chat contacts": [\n            null,\n            "Клацніть, щоб додати нові контакти до чату"\n         ],\n         "Add a contact": [\n            null,\n            "Додати контакт"\n         ],\n         "No users found": [\n            null,\n            "Жодного користувача не знайдено"\n         ],\n         "Click to add as a chat contact": [\n            null,\n            "Клацніть, щоб додати як чат-контакт"\n         ],\n         "Toggle chat": [\n            null,\n            "Включити чат"\n         ],\n         "Reconnecting": [\n            null,\n            "Перепід\'єднуюсь"\n         ],\n         "The connection has dropped, attempting to reconnect.": [\n            null,\n            ""\n         ],\n         "Connecting": [\n            null,\n            "Під\'єднуюсь"\n         ],\n         "Authenticating": [\n            null,\n            "Автентикуюсь"\n         ],\n         "Authentication Failed": [\n            null,\n            "Автентикація невдала"\n         ],\n         "Sorry, there was an error while trying to add ": [\n            null,\n            ""\n         ],\n         "This client does not allow presence subscriptions": [\n            null,\n            ""\n         ],\n         "Click to hide these contacts": [\n            null,\n            "Клацніть, щоб приховати ці контакти"\n         ],\n         "Minimize this chat box": [\n            null,\n            ""\n         ],\n         "Click to restore this chat": [\n            null,\n            "Клацніть, щоб відновити цей чат"\n         ],\n         "Minimized": [\n            null,\n            "Мінімізовано"\n         ],\n         "This room is not anonymous": [\n            null,\n            "Ця кімната не є анонімною"\n         ],\n         "This room now shows unavailable members": [\n            null,\n            "Ця кімната вже показує недоступних учасників"\n         ],\n         "This room does not show unavailable members": [\n            null,\n            "Ця кімната не показує недоступних учасників"\n         ],\n         "Room logging is now enabled": [\n            null,\n            "Журналювання кімнати тепер ввімкнено"\n         ],\n         "Room logging is now disabled": [\n            null,\n            "Журналювання кімнати тепер вимкнено"\n         ],\n         "This room is now semi-anonymous": [\n            null,\n            "Ця кімната тепер напів-анонімна"\n         ],\n         "This room is now fully-anonymous": [\n            null,\n            "Ця кімната тепер повністю анонімна"\n         ],\n         "A new room has been created": [\n            null,\n            "Створено нову кімнату"\n         ],\n         "You have been banned from this room": [\n            null,\n            "Вам заблокували доступ до цієї кімнати"\n         ],\n         "You have been kicked from this room": [\n            null,\n            "Вас викинули з цієї кімнати"\n         ],\n         "You have been removed from this room because of an affiliation change": [\n            null,\n            "Вас видалено з кімнати у зв\'язку зі змінами власності кімнати"\n         ],\n         "You have been removed from this room because the room has changed to members-only and you\'re not a member": [\n            null,\n            "Вас видалено з цієї кімнати, оскільки вона тепер вимагає членства, а Ви ним не є її членом"\n         ],\n         "You have been removed from this room because the MUC (Multi-user chat) service is being shut down.": [\n            null,\n            "Вас видалено з цієї кімнати, тому що MUC (Чат-сервіс) припиняє роботу."\n         ],\n         "Message": [\n            null,\n            "Повідомлення"\n         ],\n         "Error: the \\"": [\n            null,\n            ""\n         ],\n         "Are you sure you want to clear the messages from this room?": [\n            null,\n            "Ви впевнені, що хочете очистити повідомлення з цієї кімнати?"\n         ],\n         "Error: could not execute the command": [\n            null,\n            "Помилка: Не можу виконати команду"\n         ],\n         "Change user\'s affiliation to admin": [\n            null,\n            "Призначити користувача адміністратором"\n         ],\n         "Ban user from room": [\n            null,\n            "Заблокувати і викинути з кімнати"\n         ],\n         "Kick user from room": [\n            null,\n            "Викинути з кімнати"\n         ],\n         "Write in 3rd person": [\n            null,\n            "Писати в 3-й особі"\n         ],\n         "Grant membership to a user": [\n            null,\n            "Надати членство користувачу"\n         ],\n         "Remove user\'s ability to post messages": [\n            null,\n            "Забрати можливість слати повідомлення"\n         ],\n         "Change your nickname": [\n            null,\n            "Змінити Ваше прізвисько"\n         ],\n         "Grant moderator role to user": [\n            null,\n            "Надати права модератора"\n         ],\n         "Grant ownership of this room": [\n            null,\n            "Передати у власність цю кімнату"\n         ],\n         "Revoke user\'s membership": [\n            null,\n            "Забрати членство в користувача"\n         ],\n         "Set room subject (alias for /subject)": [\n            null,\n            ""\n         ],\n         "Allow muted user to post messages": [\n            null,\n            "Дозволити безголосому користувачу слати повідомлення"\n         ],\n         "The nickname you chose is reserved or currently in use, please choose a different one.": [\n            null,\n            ""\n         ],\n         "Nickname": [\n            null,\n            "Прізвисько"\n         ],\n         "This chatroom requires a password": [\n            null,\n            "Ця кімната вимагає пароль"\n         ],\n         "Password: ": [\n            null,\n            "Пароль:"\n         ],\n         "Submit": [\n            null,\n            "Надіслати"\n         ],\n         "The reason given is: \\"": [\n            null,\n            "Причиною вказано: \\""\n         ],\n         " has left the room. \\"": [\n            null,\n            ""\n         ],\n         " has joined the room. \\"": [\n            null,\n            ""\n         ],\n         " has joined the room.": [\n            null,\n            ""\n         ],\n         "Topic set by %1$s to: %2$s": [\n            null,\n            "Тема встановлена %1$s: %2$s"\n         ],\n         "Occupants": [\n            null,\n            "Учасники"\n         ],\n         "Invite": [\n            null,\n            "Запросіть"\n         ],\n         "Hidden": [\n            null,\n            "Прихована"\n         ],\n         "Message archiving": [\n            null,\n            ""\n         ],\n         "Members only": [\n            null,\n            ""\n         ],\n         "Moderated": [\n            null,\n            "Модерована"\n         ],\n         "Non-anonymous": [\n            null,\n            "Не-анонімні"\n         ],\n         "Persistent": [\n            null,\n            ""\n         ],\n         "Public": [\n            null,\n            "Публічна"\n         ],\n         "Semi-anonymous": [\n            null,\n            "Напів-анонімна"\n         ],\n         "Unmoderated": [\n            null,\n            "Немодерована"\n         ],\n         "Unsecured": [\n            null,\n            ""\n         ],\n         "Messages are archived on the server": [\n            null,\n            ""\n         ],\n         "All other room occupants can see your Jabber ID": [\n            null,\n            ""\n         ],\n         "This room persists even if it\'s unoccupied": [\n            null,\n            ""\n         ],\n         "Only moderators can see your Jabber ID": [\n            null,\n            ""\n         ],\n         "This room will disappear once the last person leaves": [\n            null,\n            ""\n         ],\n         "You are about to invite %1$s to the chat room \\"%2$s\\". ": [\n            null,\n            "Ви запрошуєте %1$s до чату \\"%2$s\\". "\n         ],\n         "You may optionally include a message, explaining the reason for the invitation.": [\n            null,\n            "Ви можете опціонально додати повідомлення, щоб пояснити причину запрошення."\n         ],\n         "Room name": [\n            null,\n            "Назва кімнати"\n         ],\n         "Server": [\n            null,\n            "Сервер"\n         ],\n         "Join Room": [\n            null,\n            "Приєднатися до кімнати"\n         ],\n         "Show rooms": [\n            null,\n            "Показати кімнати"\n         ],\n         "Rooms": [\n            null,\n            "Кімнати"\n         ],\n         "No rooms on %1$s": [\n            null,\n            "Жодної кімнати на %1$s"\n         ],\n         "Rooms on %1$s": [\n            null,\n            "Кімнати на %1$s"\n         ],\n         "Description:": [\n            null,\n            "Опис:"\n         ],\n         "Occupants:": [\n            null,\n            "Присутні:"\n         ],\n         "Features:": [\n            null,\n            "Особливості:"\n         ],\n         "Requires authentication": [\n            null,\n            "Вимагає автентикації"\n         ],\n         "Requires an invitation": [\n            null,\n            "Вимагає запрошення"\n         ],\n         "Open room": [\n            null,\n            "Увійти в кімнату"\n         ],\n         "Permanent room": [\n            null,\n            "Постійна кімната"\n         ],\n         "Temporary room": [\n            null,\n            "Тимчасова кімната"\n         ],\n         "%1$s has invited you to join a chat room: %2$s": [\n            null,\n            "%1$s запрошує вас приєднатись до чату: %2$s"\n         ],\n         "%1$s has invited you to join a chat room: %2$s, and left the following reason: \\"%3$s\\"": [\n            null,\n            "%1$s запрошує Вас приєднатись до чату: %2$s, аргументує ось як: \\"%3$s\\""\n         ],\n         "Notification from %1$s": [\n            null,\n            ""\n         ],\n         "%1$s says": [\n            null,\n            ""\n         ],\n         "wants to be your contact": [\n            null,\n            ""\n         ],\n         "Re-establishing encrypted session": [\n            null,\n            "Перевстановлюю криптований сеанс"\n         ],\n         "Generating private key.": [\n            null,\n            "Генерація приватного ключа."\n         ],\n         "Your browser might become unresponsive.": [\n            null,\n            "Ваш браузер може підвиснути."\n         ],\n         "Authentication request from %1$s\\n\\nYour chat contact is attempting to verify your identity, by asking you the question below.\\n\\n%2$s": [\n            null,\n            "Запит автентикації від %1$s\\n\\nВаш контакт в чаті намагається встановити Вашу особу і просить відповісти на питання нижче.\\n\\n%2$s"\n         ],\n         "Could not verify this user\'s identify.": [\n            null,\n            "Не можу перевірити автентичність цього користувача."\n         ],\n         "Exchanging private key with contact.": [\n            null,\n            "Обмін приватним ключем з контактом."\n         ],\n         "Your messages are not encrypted anymore": [\n            null,\n            "Ваші повідомлення більше не криптуються"\n         ],\n         "Your messages are now encrypted but your contact\'s identity has not been verified.": [\n            null,\n            "Ваші повідомлення вже криптуються, але особа Вашого контакту не перевірена."\n         ],\n         "Your contact\'s identify has been verified.": [\n            null,\n            "Особу Вашого контакту перевірено."\n         ],\n         "Your contact has ended encryption on their end, you should do the same.": [\n            null,\n            "Ваш контакт припинив криптування зі свого боку, Вам слід зробити те саме."\n         ],\n         "Your message could not be sent": [\n            null,\n            "Ваше повідомлення не може бути надіслане"\n         ],\n         "We received an unencrypted message": [\n            null,\n            "Ми отримали некриптоване повідомлення"\n         ],\n         "We received an unreadable encrypted message": [\n            null,\n            "Ми отримали нечитабельне криптоване повідомлення"\n         ],\n         "Here are the fingerprints, please confirm them with %1$s, outside of this chat.\\n\\nFingerprint for you, %2$s: %3$s\\n\\nFingerprint for %1$s: %4$s\\n\\nIf you have confirmed that the fingerprints match, click OK, otherwise click Cancel.": [\n            null,\n            "Ось відбитки, будь-ласка, підтвердіть їх з %1$s, за межами цього чату.\\n\\nВідбиток для Вас, %2$s: %3$s\\n\\nВідбиток для %1$s: %4$s\\n\\nЯкщо Ви підтверджуєте відповідність відбитка, клацніть Гаразд, інакше клацніть Відміна."\n         ],\n         "You will be prompted to provide a security question and then an answer to that question.\\n\\nYour contact will then be prompted the same question and if they type the exact same answer (case sensitive), their identity will be verified.": [\n            null,\n            "Вас запитають таємне питання і відповідь на нього.\\n\\nПотім Вашого контакта запитають те саме питання, і якщо вони введуть ту саму відповідь (враховуючи регістр), їх особи будуть перевірені."\n         ],\n         "What is your security question?": [\n            null,\n            "Яке Ваше таємне питання?"\n         ],\n         "What is the answer to the security question?": [\n            null,\n            "Яка відповідь на таємне питання?"\n         ],\n         "Invalid authentication scheme provided": [\n            null,\n            "Надана некоректна схема автентикації"\n         ],\n         "Your messages are not encrypted. Click here to enable OTR encryption.": [\n            null,\n            "Ваші повідомлення не криптуються. Клацніть тут, щоб увімкнути OTR-криптування."\n         ],\n         "Your messages are encrypted, but your contact has not been verified.": [\n            null,\n            "Ваші повідомлення криптуються, але Ваш контакт не був перевірений."\n         ],\n         "Your messages are encrypted and your contact verified.": [\n            null,\n            "Ваші повідомлення криптуються і Ваш контакт перевірено."\n         ],\n         "Your contact has closed their end of the private session, you should do the same": [\n            null,\n            "Ваш контакт закрив зі свого боку приватну сесію, Вам слід зробити те ж саме"\n         ],\n         "End encrypted conversation": [\n            null,\n            "Завершити криптовану розмову"\n         ],\n         "Refresh encrypted conversation": [\n            null,\n            "Оновити криптовану розмову"\n         ],\n         "Start encrypted conversation": [\n            null,\n            "Почати криптовану розмову"\n         ],\n         "Verify with fingerprints": [\n            null,\n            "Перевірити за відбитками"\n         ],\n         "Verify with SMP": [\n            null,\n            "Перевірити за SMP"\n         ],\n         "What\'s this?": [\n            null,\n            "Що це?"\n         ],\n         "unencrypted": [\n            null,\n            "некриптовано"\n         ],\n         "unverified": [\n            null,\n            "неперевірено"\n         ],\n         "verified": [\n            null,\n            "перевірено"\n         ],\n         "finished": [\n            null,\n            "завершено"\n         ],\n         " e.g. conversejs.org": [\n            null,\n            " напр. conversejs.org"\n         ],\n         "Your XMPP provider\'s domain name:": [\n            null,\n            "Домен Вашого провайдера XMPP:"\n         ],\n         "Fetch registration form": [\n            null,\n            "Отримати форму реєстрації"\n         ],\n         "Tip: A list of public XMPP providers is available": [\n            null,\n            "Порада: доступний перелік публічних XMPP-провайдерів"\n         ],\n         "here": [\n            null,\n            "тут"\n         ],\n         "Register": [\n            null,\n            "Реєстрація"\n         ],\n         "Sorry, the given provider does not support in band account registration. Please try with a different provider.": [\n            null,\n            "Вибачте, вказаний провайдер не підтримує реєстрації онлайн. Спробуйте іншого провайдера."\n         ],\n         "Requesting a registration form from the XMPP server": [\n            null,\n            "Запитую форму реєстрації з XMPP сервера"\n         ],\n         "Something went wrong while establishing a connection with \\"%1$s\\". Are you sure it exists?": [\n            null,\n            "Щось пішло не так при встановленні зв\'язку з \\"%1$s\\". Ви впевнені, що такий існує?"\n         ],\n         "Now logging you in": [\n            null,\n            "Входимо"\n         ],\n         "Registered successfully": [\n            null,\n            "Успішно зареєстровано"\n         ],\n         "Return": [\n            null,\n            "Вернутися"\n         ],\n         "Retry": [\n            null,\n            ""\n         ],\n         "This contact is busy": [\n            null,\n            "Цей контакт зайнятий"\n         ],\n         "This contact is online": [\n            null,\n            "Цей контакт на зв\'язку"\n         ],\n         "This contact is offline": [\n            null,\n            "Цей контакт поза мережею"\n         ],\n         "This contact is unavailable": [\n            null,\n            "Цей контакт недоступний"\n         ],\n         "This contact is away for an extended period": [\n            null,\n            "Цей контакт відсутній тривалий час"\n         ],\n         "This contact is away": [\n            null,\n            "Цей контакт відсутній"\n         ],\n         "Groups": [\n            null,\n            "Групи"\n         ],\n         "My contacts": [\n            null,\n            "Мої контакти"\n         ],\n         "Pending contacts": [\n            null,\n            "Контакти в очікуванні"\n         ],\n         "Contact requests": [\n            null,\n            "Запити контакту"\n         ],\n         "Ungrouped": [\n            null,\n            "Негруповані"\n         ],\n         "Filter": [\n            null,\n            ""\n         ],\n         "State": [\n            null,\n            ""\n         ],\n         "Any": [\n            null,\n            ""\n         ],\n         "Chatty": [\n            null,\n            ""\n         ],\n         "Extended Away": [\n            null,\n            ""\n         ],\n         "Click to remove this contact": [\n            null,\n            "Клацніть, щоб видалити цей контакт"\n         ],\n         "Click to accept this contact request": [\n            null,\n            "Клацніть, щоб прийняти цей запит контакту"\n         ],\n         "Click to decline this contact request": [\n            null,\n            "Клацніть, щоб відхилити цей запит контакту"\n         ],\n         "Click to chat with this contact": [\n            null,\n            "Клацніть, щоб почати розмову з цим контактом"\n         ],\n         "Name": [\n            null,\n            ""\n         ],\n         "Are you sure you want to remove this contact?": [\n            null,\n            "Ви впевнені, що хочете видалити цей контакт?"\n         ],\n         "Sorry, there was an error while trying to remove ": [\n            null,\n            ""\n         ],\n         "Are you sure you want to decline this contact request?": [\n            null,\n            "Ви впевнені, що хочете відхилити цей запит контакту?"\n         ]\n      }\n   }\n}';});


define('text!zh',[],function () { return '{\n   "domain": "converse",\n   "locale_data": {\n      "converse": {\n         "": {\n            "domain": "converse",\n            "lang": "zh"\n         },\n         "Bookmark this room": [\n            null,\n            ""\n         ],\n         "The name for this bookmark:": [\n            null,\n            ""\n         ],\n         "Would you like this room to be automatically joined upon startup?": [\n            null,\n            ""\n         ],\n         "What should your nickname for this room be?": [\n            null,\n            ""\n         ],\n         "Save": [\n            null,\n            "保存"\n         ],\n         "Cancel": [\n            null,\n            "取消"\n         ],\n         "Sorry, something went wrong while trying to save your bookmark.": [\n            null,\n            ""\n         ],\n         "Bookmarked Rooms": [\n            null,\n            ""\n         ],\n         "Click to open this room": [\n            null,\n            "打开聊天室"\n         ],\n         "Show more information on this room": [\n            null,\n            "显示次聊天室的更多信息"\n         ],\n         "Remove this bookmark": [\n            null,\n            ""\n         ],\n         "Personal message": [\n            null,\n            "私信"\n         ],\n         "Send": [\n            null,\n            ""\n         ],\n         "me": [\n            null,\n            "我"\n         ],\n         "A very large message has been received.This might be due to an attack meant to degrade the chat performance.Output has been shortened.": [\n            null,\n            ""\n         ],\n         "Typing from another device": [\n            null,\n            ""\n         ],\n         "is typing": [\n            null,\n            ""\n         ],\n         "Stopped typing on the other device": [\n            null,\n            ""\n         ],\n         "has stopped typing": [\n            null,\n            ""\n         ],\n         "Show this menu": [\n            null,\n            "显示此项菜单"\n         ],\n         "Write in the third person": [\n            null,\n            "以第三者身份写"\n         ],\n         "Remove messages": [\n            null,\n            "移除消息"\n         ],\n         "Are you sure you want to clear the messages from this chat box?": [\n            null,\n            "你确定清除此次的聊天记录吗？"\n         ],\n         "Insert a smiley": [\n            null,\n            ""\n         ],\n         "Start a call": [\n            null,\n            ""\n         ],\n         "Contacts": [\n            null,\n            "联系人"\n         ],\n         "Password:": [\n            null,\n            "密码:"\n         ],\n         "Log In": [\n            null,\n            "登录"\n         ],\n         "user@server": [\n            null,\n            ""\n         ],\n         "Sign in": [\n            null,\n            "登录"\n         ],\n         "I am %1$s": [\n            null,\n            "我现在%1$s"\n         ],\n         "Click here to write a custom status message": [\n            null,\n            "点击这里，填写状态信息"\n         ],\n         "Click to change your chat status": [\n            null,\n            "点击这里改变聊天状态"\n         ],\n         "Custom status": [\n            null,\n            "DIY状态"\n         ],\n         "online": [\n            null,\n            "在线"\n         ],\n         "busy": [\n            null,\n            "忙碌"\n         ],\n         "away for long": [\n            null,\n            "长时间离开"\n         ],\n         "away": [\n            null,\n            "离开"\n         ],\n         "Online": [\n            null,\n            "在线"\n         ],\n         "Busy": [\n            null,\n            "忙碌中"\n         ],\n         "Away": [\n            null,\n            "离开"\n         ],\n         "Offline": [\n            null,\n            "离线"\n         ],\n         "Contact name": [\n            null,\n            "联系人名称"\n         ],\n         "Search": [\n            null,\n            "搜索"\n         ],\n         "e.g. user@example.org": [\n            null,\n            ""\n         ],\n         "Add": [\n            null,\n            "添加"\n         ],\n         "Click to add new chat contacts": [\n            null,\n            "点击添加新联系人"\n         ],\n         "Add a contact": [\n            null,\n            "添加联系人"\n         ],\n         "No users found": [\n            null,\n            "未找到用户"\n         ],\n         "Click to add as a chat contact": [\n            null,\n            "点击添加为好友"\n         ],\n         "Toggle chat": [\n            null,\n            "折叠聊天窗口"\n         ],\n         "The connection has dropped, attempting to reconnect.": [\n            null,\n            ""\n         ],\n         "Connecting": [\n            null,\n            "连接中"\n         ],\n         "Authenticating": [\n            null,\n            "验证中"\n         ],\n         "Authentication Failed": [\n            null,\n            "验证失败"\n         ],\n         "Sorry, there was an error while trying to add ": [\n            null,\n            ""\n         ],\n         "This client does not allow presence subscriptions": [\n            null,\n            ""\n         ],\n         "Minimize this chat box": [\n            null,\n            ""\n         ],\n         "Minimized": [\n            null,\n            "最小化的"\n         ],\n         "This room is not anonymous": [\n            null,\n            "此为非匿名聊天室"\n         ],\n         "This room now shows unavailable members": [\n            null,\n            "此聊天室显示不可用用户"\n         ],\n         "This room does not show unavailable members": [\n            null,\n            "此聊天室不显示不可用用户"\n         ],\n         "Room logging is now enabled": [\n            null,\n            "聊天室聊天记录已启用"\n         ],\n         "Room logging is now disabled": [\n            null,\n            "聊天室聊天记录已禁用"\n         ],\n         "This room is now semi-anonymous": [\n            null,\n            "此聊天室半匿名"\n         ],\n         "This room is now fully-anonymous": [\n            null,\n            "此聊天室完全匿名"\n         ],\n         "A new room has been created": [\n            null,\n            "新聊天室已创建"\n         ],\n         "You have been banned from this room": [\n            null,\n            "您已被此聊天室禁止入内"\n         ],\n         "You have been kicked from this room": [\n            null,\n            "您已被踢出次房间"\n         ],\n         "You have been removed from this room because of an affiliation change": [\n            null,\n            "由于关系变化，您已被移除此房间"\n         ],\n         "You have been removed from this room because the room has changed to members-only and you\'re not a member": [\n            null,\n            "您已被移除此房间因为此房间更改为只允许成员加入，而您非成员"\n         ],\n         "You have been removed from this room because the MUC (Multi-user chat) service is being shut down.": [\n            null,\n            "由于服务不可用，您已被移除此房间。"\n         ],\n         "Message": [\n            null,\n            "信息"\n         ],\n         "Hide the list of occupants": [\n            null,\n            ""\n         ],\n         "Error: the \\"": [\n            null,\n            ""\n         ],\n         "Error: could not execute the command": [\n            null,\n            ""\n         ],\n         "Change user\'s affiliation to admin": [\n            null,\n            ""\n         ],\n         "Change user role to occupant": [\n            null,\n            ""\n         ],\n         "Grant membership to a user": [\n            null,\n            ""\n         ],\n         "Remove user\'s ability to post messages": [\n            null,\n            ""\n         ],\n         "Change your nickname": [\n            null,\n            ""\n         ],\n         "Grant moderator role to user": [\n            null,\n            ""\n         ],\n         "Revoke user\'s membership": [\n            null,\n            ""\n         ],\n         "Set room subject (alias for /subject)": [\n            null,\n            ""\n         ],\n         "Allow muted user to post messages": [\n            null,\n            ""\n         ],\n         "The nickname you chose is reserved or currently in use, please choose a different one.": [\n            null,\n            ""\n         ],\n         "Please choose your nickname": [\n            null,\n            ""\n         ],\n         "Nickname": [\n            null,\n            "昵称"\n         ],\n         "This chatroom requires a password": [\n            null,\n            "此聊天室需要密码"\n         ],\n         "Password: ": [\n            null,\n            "密码:"\n         ],\n         "Submit": [\n            null,\n            "发送"\n         ],\n         "The reason given is: \\"%1$s\\".": [\n            null,\n            ""\n         ],\n         "The reason given is: \\"": [\n            null,\n            ""\n         ],\n         " has left the room. \\"": [\n            null,\n            ""\n         ],\n         " has joined the room. \\"": [\n            null,\n            ""\n         ],\n         " has joined the room.": [\n            null,\n            ""\n         ],\n         "Topic set by %1$s to: %2$s": [\n            null,\n            "%1$s 设置话题为: %2$s"\n         ],\n         "Invite": [\n            null,\n            ""\n         ],\n         "Hidden": [\n            null,\n            "隐藏的"\n         ],\n         "Message archiving": [\n            null,\n            ""\n         ],\n         "Members only": [\n            null,\n            ""\n         ],\n         "Moderated": [\n            null,\n            "发言受限"\n         ],\n         "Non-anonymous": [\n            null,\n            "非匿名"\n         ],\n         "Persistent": [\n            null,\n            ""\n         ],\n         "Public": [\n            null,\n            "公开的"\n         ],\n         "Semi-anonymous": [\n            null,\n            "半匿名"\n         ],\n         "Unmoderated": [\n            null,\n            "无发言限制"\n         ],\n         "Unsecured": [\n            null,\n            ""\n         ],\n         "Messages are archived on the server": [\n            null,\n            ""\n         ],\n         "All other room occupants can see your Jabber ID": [\n            null,\n            ""\n         ],\n         "This room persists even if it\'s unoccupied": [\n            null,\n            ""\n         ],\n         "Only moderators can see your Jabber ID": [\n            null,\n            ""\n         ],\n         "This room will disappear once the last person leaves": [\n            null,\n            ""\n         ],\n         "You are about to invite %1$s to the chat room \\"%2$s\\". ": [\n            null,\n            ""\n         ],\n         "You may optionally include a message, explaining the reason for the invitation.": [\n            null,\n            ""\n         ],\n         "Room name": [\n            null,\n            "聊天室名称"\n         ],\n         "Server": [\n            null,\n            "服务器"\n         ],\n         "Show rooms": [\n            null,\n            "显示所有聊天室"\n         ],\n         "Rooms": [\n            null,\n            "聊天室"\n         ],\n         "No rooms on %1$s": [\n            null,\n            "%1$s 上没有聊天室"\n         ],\n         "Rooms on %1$s": [\n            null,\n            "%1$s 上的聊天室"\n         ],\n         "Description:": [\n            null,\n            "描述: "\n         ],\n         "Occupants:": [\n            null,\n            "成员:"\n         ],\n         "Features:": [\n            null,\n            "特性:"\n         ],\n         "Requires authentication": [\n            null,\n            "需要验证"\n         ],\n         "Requires an invitation": [\n            null,\n            "需要被邀请"\n         ],\n         "Open room": [\n            null,\n            "打开聊天室"\n         ],\n         "Permanent room": [\n            null,\n            "永久聊天室"\n         ],\n         "Temporary room": [\n            null,\n            "临时聊天室"\n         ],\n         "%1$s has invited you to join a chat room: %2$s": [\n            null,\n            ""\n         ],\n         "%1$s has invited you to join a chat room: %2$s, and left the following reason: \\"%3$s\\"": [\n            null,\n            ""\n         ],\n         "Notification from %1$s": [\n            null,\n            ""\n         ],\n         "%1$s says": [\n            null,\n            ""\n         ],\n         "wants to be your contact": [\n            null,\n            ""\n         ],\n         "Re-establishing encrypted session": [\n            null,\n            "重新建立加密会话"\n         ],\n         "Generating private key.": [\n            null,\n            "正在生成私钥"\n         ],\n         "Your browser might become unresponsive.": [\n            null,\n            "您的浏览器可能会暂时无响应"\n         ],\n         "Could not verify this user\'s identify.": [\n            null,\n            "无法验证对方信息。"\n         ],\n         "Your messages are not encrypted anymore": [\n            null,\n            "您的消息将不再被加密"\n         ],\n         "Your message could not be sent": [\n            null,\n            "您的消息无法送出"\n         ],\n         "We received an unencrypted message": [\n            null,\n            "我们收到了一条未加密的信息"\n         ],\n         "We received an unreadable encrypted message": [\n            null,\n            "我们收到一条无法读取的信息"\n         ],\n         "Here are the fingerprints, please confirm them with %1$s, outside of this chat.\\n\\nFingerprint for you, %2$s: %3$s\\n\\nFingerprint for %1$s: %4$s\\n\\nIf you have confirmed that the fingerprints match, click OK, otherwise click Cancel.": [\n            null,\n            "这里是指纹。请与 %1$s 确认。\\n\\n您的 %2$s 指纹: %3$s\\n\\n%1$s 的指纹: %4$s\\n\\n如果确认符合，请点击OK，否则点击取消"\n         ],\n         "What is your security question?": [\n            null,\n            "您的安全问题是?"\n         ],\n         "What is the answer to the security question?": [\n            null,\n            "此安全问题的答案是?"\n         ],\n         "Invalid authentication scheme provided": [\n            null,\n            "非法的认证方式"\n         ],\n         "Your messages are not encrypted. Click here to enable OTR encryption.": [\n            null,\n            "您的消息未加密。点击这里来启用OTR加密"\n         ],\n         "End encrypted conversation": [\n            null,\n            "结束加密的会话"\n         ],\n         "Refresh encrypted conversation": [\n            null,\n            "刷新加密的会话"\n         ],\n         "Start encrypted conversation": [\n            null,\n            "开始加密的会话"\n         ],\n         "Verify with fingerprints": [\n            null,\n            "验证指纹"\n         ],\n         "Verify with SMP": [\n            null,\n            "验证SMP"\n         ],\n         "What\'s this?": [\n            null,\n            "这是什么?"\n         ],\n         "unencrypted": [\n            null,\n            "未加密"\n         ],\n         "unverified": [\n            null,\n            "未验证"\n         ],\n         "verified": [\n            null,\n            "已验证"\n         ],\n         "finished": [\n            null,\n            "结束了"\n         ],\n         " e.g. conversejs.org": [\n            null,\n            ""\n         ],\n         "Your XMPP provider\'s domain name:": [\n            null,\n            ""\n         ],\n         "Fetch registration form": [\n            null,\n            ""\n         ],\n         "Tip: A list of public XMPP providers is available": [\n            null,\n            ""\n         ],\n         "here": [\n            null,\n            ""\n         ],\n         "Register": [\n            null,\n            ""\n         ],\n         "Sorry, the given provider does not support in band account registration. Please try with a different provider.": [\n            null,\n            ""\n         ],\n         "Requesting a registration form from the XMPP server": [\n            null,\n            ""\n         ],\n         "Something went wrong while establishing a connection with \\"%1$s\\". Are you sure it exists?": [\n            null,\n            ""\n         ],\n         "Now logging you in": [\n            null,\n            ""\n         ],\n         "Registered successfully": [\n            null,\n            ""\n         ],\n         "Return": [\n            null,\n            ""\n         ],\n         "The provider rejected your registration attempt. Please check the values you entered for correctness.": [\n            null,\n            ""\n         ],\n         "Retry": [\n            null,\n            ""\n         ],\n         "This contact is busy": [\n            null,\n            "对方忙碌中"\n         ],\n         "This contact is online": [\n            null,\n            "对方在线中"\n         ],\n         "This contact is offline": [\n            null,\n            "对方已下线"\n         ],\n         "This contact is unavailable": [\n            null,\n            "对方免打扰"\n         ],\n         "This contact is away for an extended period": [\n            null,\n            "对方暂时离开"\n         ],\n         "This contact is away": [\n            null,\n            "对方离开"\n         ],\n         "Groups": [\n            null,\n            ""\n         ],\n         "My contacts": [\n            null,\n            "我的好友列表"\n         ],\n         "Pending contacts": [\n            null,\n            "保留中的联系人"\n         ],\n         "Contact requests": [\n            null,\n            "来自好友的请求"\n         ],\n         "Ungrouped": [\n            null,\n            ""\n         ],\n         "Filter": [\n            null,\n            ""\n         ],\n         "State": [\n            null,\n            ""\n         ],\n         "Any": [\n            null,\n            ""\n         ],\n         "Chatty": [\n            null,\n            ""\n         ],\n         "Extended Away": [\n            null,\n            ""\n         ],\n         "Click to remove this contact": [\n            null,\n            "点击移除联系人"\n         ],\n         "Click to chat with this contact": [\n            null,\n            "点击与对方交谈"\n         ],\n         "Name": [\n            null,\n            ""\n         ],\n         "Sorry, there was an error while trying to remove ": [\n            null,\n            ""\n         ]\n      }\n   }\n}';});

/*
 * This file specifies the language dependencies.
 *
 * Translations take up a lot of space and you are therefore advised to remove
 * from here any languages that you don't need.
 *
 * See also src/moment_locales.js
 */
/*global define */
(function (root, factory) {
    define("locales", ['jed',
        'text!af',
        'text!ca',
        'text!de',
        'text!es',
        'text!fr',
        'text!he',
        'text!hu',
        'text!id',
        'text!it',
        'text!ja',
        'text!nb',
        'text!nl',
        'text!pl',
        'text!pt_BR',
        'text!ru',
        'text!uk',
        'text!zh'
        ], function ($, Jed) {
            root.locales = {
                'en':     {},
                'af':     arguments[1],
                'ca':     arguments[2],
                'de':     arguments[3],
                'es':     arguments[4],
                'fr':     arguments[5],
                'he':     arguments[6],
                'hu':     arguments[7],
                'id':     arguments[8],
                'it':     arguments[9],
                'ja':     arguments[10],
                'nb':     arguments[11],
                'nl':     arguments[12],
                'pl':     arguments[13],
                'pt-br':  arguments[14],
                'ru':     arguments[15],
                'uk':     arguments[16],
                'zh':     arguments[17]
            };
            return root.locales;
        });
})(this);

//! moment.js
//! version : 2.18.1
//! authors : Tim Wood, Iskren Chernev, Moment.js contributors
//! license : MIT
//! momentjs.com

;(function (global, factory) {
    typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
    typeof define === 'function' && define.amd ? define('moment/moment',factory) :
    global.moment = factory()
}(this, (function () { 'use strict';

var hookCallback;

function hooks () {
    return hookCallback.apply(null, arguments);
}

// This is done to register the method called with moment()
// without creating circular dependencies.
function setHookCallback (callback) {
    hookCallback = callback;
}

function isArray(input) {
    return input instanceof Array || Object.prototype.toString.call(input) === '[object Array]';
}

function isObject(input) {
    // IE8 will treat undefined and null as object if it wasn't for
    // input != null
    return input != null && Object.prototype.toString.call(input) === '[object Object]';
}

function isObjectEmpty(obj) {
    var k;
    for (k in obj) {
        // even if its not own property I'd still call it non-empty
        return false;
    }
    return true;
}

function isUndefined(input) {
    return input === void 0;
}

function isNumber(input) {
    return typeof input === 'number' || Object.prototype.toString.call(input) === '[object Number]';
}

function isDate(input) {
    return input instanceof Date || Object.prototype.toString.call(input) === '[object Date]';
}

function map(arr, fn) {
    var res = [], i;
    for (i = 0; i < arr.length; ++i) {
        res.push(fn(arr[i], i));
    }
    return res;
}

function hasOwnProp(a, b) {
    return Object.prototype.hasOwnProperty.call(a, b);
}

function extend(a, b) {
    for (var i in b) {
        if (hasOwnProp(b, i)) {
            a[i] = b[i];
        }
    }

    if (hasOwnProp(b, 'toString')) {
        a.toString = b.toString;
    }

    if (hasOwnProp(b, 'valueOf')) {
        a.valueOf = b.valueOf;
    }

    return a;
}

function createUTC (input, format, locale, strict) {
    return createLocalOrUTC(input, format, locale, strict, true).utc();
}

function defaultParsingFlags() {
    // We need to deep clone this object.
    return {
        empty           : false,
        unusedTokens    : [],
        unusedInput     : [],
        overflow        : -2,
        charsLeftOver   : 0,
        nullInput       : false,
        invalidMonth    : null,
        invalidFormat   : false,
        userInvalidated : false,
        iso             : false,
        parsedDateParts : [],
        meridiem        : null,
        rfc2822         : false,
        weekdayMismatch : false
    };
}

function getParsingFlags(m) {
    if (m._pf == null) {
        m._pf = defaultParsingFlags();
    }
    return m._pf;
}

var some;
if (Array.prototype.some) {
    some = Array.prototype.some;
} else {
    some = function (fun) {
        var t = Object(this);
        var len = t.length >>> 0;

        for (var i = 0; i < len; i++) {
            if (i in t && fun.call(this, t[i], i, t)) {
                return true;
            }
        }

        return false;
    };
}

var some$1 = some;

function isValid(m) {
    if (m._isValid == null) {
        var flags = getParsingFlags(m);
        var parsedParts = some$1.call(flags.parsedDateParts, function (i) {
            return i != null;
        });
        var isNowValid = !isNaN(m._d.getTime()) &&
            flags.overflow < 0 &&
            !flags.empty &&
            !flags.invalidMonth &&
            !flags.invalidWeekday &&
            !flags.nullInput &&
            !flags.invalidFormat &&
            !flags.userInvalidated &&
            (!flags.meridiem || (flags.meridiem && parsedParts));

        if (m._strict) {
            isNowValid = isNowValid &&
                flags.charsLeftOver === 0 &&
                flags.unusedTokens.length === 0 &&
                flags.bigHour === undefined;
        }

        if (Object.isFrozen == null || !Object.isFrozen(m)) {
            m._isValid = isNowValid;
        }
        else {
            return isNowValid;
        }
    }
    return m._isValid;
}

function createInvalid (flags) {
    var m = createUTC(NaN);
    if (flags != null) {
        extend(getParsingFlags(m), flags);
    }
    else {
        getParsingFlags(m).userInvalidated = true;
    }

    return m;
}

// Plugins that add properties should also add the key here (null value),
// so we can properly clone ourselves.
var momentProperties = hooks.momentProperties = [];

function copyConfig(to, from) {
    var i, prop, val;

    if (!isUndefined(from._isAMomentObject)) {
        to._isAMomentObject = from._isAMomentObject;
    }
    if (!isUndefined(from._i)) {
        to._i = from._i;
    }
    if (!isUndefined(from._f)) {
        to._f = from._f;
    }
    if (!isUndefined(from._l)) {
        to._l = from._l;
    }
    if (!isUndefined(from._strict)) {
        to._strict = from._strict;
    }
    if (!isUndefined(from._tzm)) {
        to._tzm = from._tzm;
    }
    if (!isUndefined(from._isUTC)) {
        to._isUTC = from._isUTC;
    }
    if (!isUndefined(from._offset)) {
        to._offset = from._offset;
    }
    if (!isUndefined(from._pf)) {
        to._pf = getParsingFlags(from);
    }
    if (!isUndefined(from._locale)) {
        to._locale = from._locale;
    }

    if (momentProperties.length > 0) {
        for (i = 0; i < momentProperties.length; i++) {
            prop = momentProperties[i];
            val = from[prop];
            if (!isUndefined(val)) {
                to[prop] = val;
            }
        }
    }

    return to;
}

var updateInProgress = false;

// Moment prototype object
function Moment(config) {
    copyConfig(this, config);
    this._d = new Date(config._d != null ? config._d.getTime() : NaN);
    if (!this.isValid()) {
        this._d = new Date(NaN);
    }
    // Prevent infinite loop in case updateOffset creates new moment
    // objects.
    if (updateInProgress === false) {
        updateInProgress = true;
        hooks.updateOffset(this);
        updateInProgress = false;
    }
}

function isMoment (obj) {
    return obj instanceof Moment || (obj != null && obj._isAMomentObject != null);
}

function absFloor (number) {
    if (number < 0) {
        // -0 -> 0
        return Math.ceil(number) || 0;
    } else {
        return Math.floor(number);
    }
}

function toInt(argumentForCoercion) {
    var coercedNumber = +argumentForCoercion,
        value = 0;

    if (coercedNumber !== 0 && isFinite(coercedNumber)) {
        value = absFloor(coercedNumber);
    }

    return value;
}

// compare two arrays, return the number of differences
function compareArrays(array1, array2, dontConvert) {
    var len = Math.min(array1.length, array2.length),
        lengthDiff = Math.abs(array1.length - array2.length),
        diffs = 0,
        i;
    for (i = 0; i < len; i++) {
        if ((dontConvert && array1[i] !== array2[i]) ||
            (!dontConvert && toInt(array1[i]) !== toInt(array2[i]))) {
            diffs++;
        }
    }
    return diffs + lengthDiff;
}

function warn(msg) {
    if (hooks.suppressDeprecationWarnings === false &&
            (typeof console !==  'undefined') && console.warn) {
        console.warn('Deprecation warning: ' + msg);
    }
}

function deprecate(msg, fn) {
    var firstTime = true;

    return extend(function () {
        if (hooks.deprecationHandler != null) {
            hooks.deprecationHandler(null, msg);
        }
        if (firstTime) {
            var args = [];
            var arg;
            for (var i = 0; i < arguments.length; i++) {
                arg = '';
                if (typeof arguments[i] === 'object') {
                    arg += '\n[' + i + '] ';
                    for (var key in arguments[0]) {
                        arg += key + ': ' + arguments[0][key] + ', ';
                    }
                    arg = arg.slice(0, -2); // Remove trailing comma and space
                } else {
                    arg = arguments[i];
                }
                args.push(arg);
            }
            warn(msg + '\nArguments: ' + Array.prototype.slice.call(args).join('') + '\n' + (new Error()).stack);
            firstTime = false;
        }
        return fn.apply(this, arguments);
    }, fn);
}

var deprecations = {};

function deprecateSimple(name, msg) {
    if (hooks.deprecationHandler != null) {
        hooks.deprecationHandler(name, msg);
    }
    if (!deprecations[name]) {
        warn(msg);
        deprecations[name] = true;
    }
}

hooks.suppressDeprecationWarnings = false;
hooks.deprecationHandler = null;

function isFunction(input) {
    return input instanceof Function || Object.prototype.toString.call(input) === '[object Function]';
}

function set (config) {
    var prop, i;
    for (i in config) {
        prop = config[i];
        if (isFunction(prop)) {
            this[i] = prop;
        } else {
            this['_' + i] = prop;
        }
    }
    this._config = config;
    // Lenient ordinal parsing accepts just a number in addition to
    // number + (possibly) stuff coming from _dayOfMonthOrdinalParse.
    // TODO: Remove "ordinalParse" fallback in next major release.
    this._dayOfMonthOrdinalParseLenient = new RegExp(
        (this._dayOfMonthOrdinalParse.source || this._ordinalParse.source) +
            '|' + (/\d{1,2}/).source);
}

function mergeConfigs(parentConfig, childConfig) {
    var res = extend({}, parentConfig), prop;
    for (prop in childConfig) {
        if (hasOwnProp(childConfig, prop)) {
            if (isObject(parentConfig[prop]) && isObject(childConfig[prop])) {
                res[prop] = {};
                extend(res[prop], parentConfig[prop]);
                extend(res[prop], childConfig[prop]);
            } else if (childConfig[prop] != null) {
                res[prop] = childConfig[prop];
            } else {
                delete res[prop];
            }
        }
    }
    for (prop in parentConfig) {
        if (hasOwnProp(parentConfig, prop) &&
                !hasOwnProp(childConfig, prop) &&
                isObject(parentConfig[prop])) {
            // make sure changes to properties don't modify parent config
            res[prop] = extend({}, res[prop]);
        }
    }
    return res;
}

function Locale(config) {
    if (config != null) {
        this.set(config);
    }
}

var keys;

if (Object.keys) {
    keys = Object.keys;
} else {
    keys = function (obj) {
        var i, res = [];
        for (i in obj) {
            if (hasOwnProp(obj, i)) {
                res.push(i);
            }
        }
        return res;
    };
}

var keys$1 = keys;

var defaultCalendar = {
    sameDay : '[Today at] LT',
    nextDay : '[Tomorrow at] LT',
    nextWeek : 'dddd [at] LT',
    lastDay : '[Yesterday at] LT',
    lastWeek : '[Last] dddd [at] LT',
    sameElse : 'L'
};

function calendar (key, mom, now) {
    var output = this._calendar[key] || this._calendar['sameElse'];
    return isFunction(output) ? output.call(mom, now) : output;
}

var defaultLongDateFormat = {
    LTS  : 'h:mm:ss A',
    LT   : 'h:mm A',
    L    : 'MM/DD/YYYY',
    LL   : 'MMMM D, YYYY',
    LLL  : 'MMMM D, YYYY h:mm A',
    LLLL : 'dddd, MMMM D, YYYY h:mm A'
};

function longDateFormat (key) {
    var format = this._longDateFormat[key],
        formatUpper = this._longDateFormat[key.toUpperCase()];

    if (format || !formatUpper) {
        return format;
    }

    this._longDateFormat[key] = formatUpper.replace(/MMMM|MM|DD|dddd/g, function (val) {
        return val.slice(1);
    });

    return this._longDateFormat[key];
}

var defaultInvalidDate = 'Invalid date';

function invalidDate () {
    return this._invalidDate;
}

var defaultOrdinal = '%d';
var defaultDayOfMonthOrdinalParse = /\d{1,2}/;

function ordinal (number) {
    return this._ordinal.replace('%d', number);
}

var defaultRelativeTime = {
    future : 'in %s',
    past   : '%s ago',
    s  : 'a few seconds',
    ss : '%d seconds',
    m  : 'a minute',
    mm : '%d minutes',
    h  : 'an hour',
    hh : '%d hours',
    d  : 'a day',
    dd : '%d days',
    M  : 'a month',
    MM : '%d months',
    y  : 'a year',
    yy : '%d years'
};

function relativeTime (number, withoutSuffix, string, isFuture) {
    var output = this._relativeTime[string];
    return (isFunction(output)) ?
        output(number, withoutSuffix, string, isFuture) :
        output.replace(/%d/i, number);
}

function pastFuture (diff, output) {
    var format = this._relativeTime[diff > 0 ? 'future' : 'past'];
    return isFunction(format) ? format(output) : format.replace(/%s/i, output);
}

var aliases = {};

function addUnitAlias (unit, shorthand) {
    var lowerCase = unit.toLowerCase();
    aliases[lowerCase] = aliases[lowerCase + 's'] = aliases[shorthand] = unit;
}

function normalizeUnits(units) {
    return typeof units === 'string' ? aliases[units] || aliases[units.toLowerCase()] : undefined;
}

function normalizeObjectUnits(inputObject) {
    var normalizedInput = {},
        normalizedProp,
        prop;

    for (prop in inputObject) {
        if (hasOwnProp(inputObject, prop)) {
            normalizedProp = normalizeUnits(prop);
            if (normalizedProp) {
                normalizedInput[normalizedProp] = inputObject[prop];
            }
        }
    }

    return normalizedInput;
}

var priorities = {};

function addUnitPriority(unit, priority) {
    priorities[unit] = priority;
}

function getPrioritizedUnits(unitsObj) {
    var units = [];
    for (var u in unitsObj) {
        units.push({unit: u, priority: priorities[u]});
    }
    units.sort(function (a, b) {
        return a.priority - b.priority;
    });
    return units;
}

function makeGetSet (unit, keepTime) {
    return function (value) {
        if (value != null) {
            set$1(this, unit, value);
            hooks.updateOffset(this, keepTime);
            return this;
        } else {
            return get(this, unit);
        }
    };
}

function get (mom, unit) {
    return mom.isValid() ?
        mom._d['get' + (mom._isUTC ? 'UTC' : '') + unit]() : NaN;
}

function set$1 (mom, unit, value) {
    if (mom.isValid()) {
        mom._d['set' + (mom._isUTC ? 'UTC' : '') + unit](value);
    }
}

// MOMENTS

function stringGet (units) {
    units = normalizeUnits(units);
    if (isFunction(this[units])) {
        return this[units]();
    }
    return this;
}


function stringSet (units, value) {
    if (typeof units === 'object') {
        units = normalizeObjectUnits(units);
        var prioritized = getPrioritizedUnits(units);
        for (var i = 0; i < prioritized.length; i++) {
            this[prioritized[i].unit](units[prioritized[i].unit]);
        }
    } else {
        units = normalizeUnits(units);
        if (isFunction(this[units])) {
            return this[units](value);
        }
    }
    return this;
}

function zeroFill(number, targetLength, forceSign) {
    var absNumber = '' + Math.abs(number),
        zerosToFill = targetLength - absNumber.length,
        sign = number >= 0;
    return (sign ? (forceSign ? '+' : '') : '-') +
        Math.pow(10, Math.max(0, zerosToFill)).toString().substr(1) + absNumber;
}

var formattingTokens = /(\[[^\[]*\])|(\\)?([Hh]mm(ss)?|Mo|MM?M?M?|Do|DDDo|DD?D?D?|ddd?d?|do?|w[o|w]?|W[o|W]?|Qo?|YYYYYY|YYYYY|YYYY|YY|gg(ggg?)?|GG(GGG?)?|e|E|a|A|hh?|HH?|kk?|mm?|ss?|S{1,9}|x|X|zz?|ZZ?|.)/g;

var localFormattingTokens = /(\[[^\[]*\])|(\\)?(LTS|LT|LL?L?L?|l{1,4})/g;

var formatFunctions = {};

var formatTokenFunctions = {};

// token:    'M'
// padded:   ['MM', 2]
// ordinal:  'Mo'
// callback: function () { this.month() + 1 }
function addFormatToken (token, padded, ordinal, callback) {
    var func = callback;
    if (typeof callback === 'string') {
        func = function () {
            return this[callback]();
        };
    }
    if (token) {
        formatTokenFunctions[token] = func;
    }
    if (padded) {
        formatTokenFunctions[padded[0]] = function () {
            return zeroFill(func.apply(this, arguments), padded[1], padded[2]);
        };
    }
    if (ordinal) {
        formatTokenFunctions[ordinal] = function () {
            return this.localeData().ordinal(func.apply(this, arguments), token);
        };
    }
}

function removeFormattingTokens(input) {
    if (input.match(/\[[\s\S]/)) {
        return input.replace(/^\[|\]$/g, '');
    }
    return input.replace(/\\/g, '');
}

function makeFormatFunction(format) {
    var array = format.match(formattingTokens), i, length;

    for (i = 0, length = array.length; i < length; i++) {
        if (formatTokenFunctions[array[i]]) {
            array[i] = formatTokenFunctions[array[i]];
        } else {
            array[i] = removeFormattingTokens(array[i]);
        }
    }

    return function (mom) {
        var output = '', i;
        for (i = 0; i < length; i++) {
            output += isFunction(array[i]) ? array[i].call(mom, format) : array[i];
        }
        return output;
    };
}

// format date using native date object
function formatMoment(m, format) {
    if (!m.isValid()) {
        return m.localeData().invalidDate();
    }

    format = expandFormat(format, m.localeData());
    formatFunctions[format] = formatFunctions[format] || makeFormatFunction(format);

    return formatFunctions[format](m);
}

function expandFormat(format, locale) {
    var i = 5;

    function replaceLongDateFormatTokens(input) {
        return locale.longDateFormat(input) || input;
    }

    localFormattingTokens.lastIndex = 0;
    while (i >= 0 && localFormattingTokens.test(format)) {
        format = format.replace(localFormattingTokens, replaceLongDateFormatTokens);
        localFormattingTokens.lastIndex = 0;
        i -= 1;
    }

    return format;
}

var match1         = /\d/;            //       0 - 9
var match2         = /\d\d/;          //      00 - 99
var match3         = /\d{3}/;         //     000 - 999
var match4         = /\d{4}/;         //    0000 - 9999
var match6         = /[+-]?\d{6}/;    // -999999 - 999999
var match1to2      = /\d\d?/;         //       0 - 99
var match3to4      = /\d\d\d\d?/;     //     999 - 9999
var match5to6      = /\d\d\d\d\d\d?/; //   99999 - 999999
var match1to3      = /\d{1,3}/;       //       0 - 999
var match1to4      = /\d{1,4}/;       //       0 - 9999
var match1to6      = /[+-]?\d{1,6}/;  // -999999 - 999999

var matchUnsigned  = /\d+/;           //       0 - inf
var matchSigned    = /[+-]?\d+/;      //    -inf - inf

var matchOffset    = /Z|[+-]\d\d:?\d\d/gi; // +00:00 -00:00 +0000 -0000 or Z
var matchShortOffset = /Z|[+-]\d\d(?::?\d\d)?/gi; // +00 -00 +00:00 -00:00 +0000 -0000 or Z

var matchTimestamp = /[+-]?\d+(\.\d{1,3})?/; // 123456789 123456789.123

// any word (or two) characters or numbers including two/three word month in arabic.
// includes scottish gaelic two word and hyphenated months
var matchWord = /[0-9]*['a-z\u00A0-\u05FF\u0700-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]+|[\u0600-\u06FF\/]+(\s*?[\u0600-\u06FF]+){1,2}/i;


var regexes = {};

function addRegexToken (token, regex, strictRegex) {
    regexes[token] = isFunction(regex) ? regex : function (isStrict, localeData) {
        return (isStrict && strictRegex) ? strictRegex : regex;
    };
}

function getParseRegexForToken (token, config) {
    if (!hasOwnProp(regexes, token)) {
        return new RegExp(unescapeFormat(token));
    }

    return regexes[token](config._strict, config._locale);
}

// Code from http://stackoverflow.com/questions/3561493/is-there-a-regexp-escape-function-in-javascript
function unescapeFormat(s) {
    return regexEscape(s.replace('\\', '').replace(/\\(\[)|\\(\])|\[([^\]\[]*)\]|\\(.)/g, function (matched, p1, p2, p3, p4) {
        return p1 || p2 || p3 || p4;
    }));
}

function regexEscape(s) {
    return s.replace(/[-\/\\^$*+?.()|[\]{}]/g, '\\$&');
}

var tokens = {};

function addParseToken (token, callback) {
    var i, func = callback;
    if (typeof token === 'string') {
        token = [token];
    }
    if (isNumber(callback)) {
        func = function (input, array) {
            array[callback] = toInt(input);
        };
    }
    for (i = 0; i < token.length; i++) {
        tokens[token[i]] = func;
    }
}

function addWeekParseToken (token, callback) {
    addParseToken(token, function (input, array, config, token) {
        config._w = config._w || {};
        callback(input, config._w, config, token);
    });
}

function addTimeToArrayFromToken(token, input, config) {
    if (input != null && hasOwnProp(tokens, token)) {
        tokens[token](input, config._a, config, token);
    }
}

var YEAR = 0;
var MONTH = 1;
var DATE = 2;
var HOUR = 3;
var MINUTE = 4;
var SECOND = 5;
var MILLISECOND = 6;
var WEEK = 7;
var WEEKDAY = 8;

var indexOf;

if (Array.prototype.indexOf) {
    indexOf = Array.prototype.indexOf;
} else {
    indexOf = function (o) {
        // I know
        var i;
        for (i = 0; i < this.length; ++i) {
            if (this[i] === o) {
                return i;
            }
        }
        return -1;
    };
}

var indexOf$1 = indexOf;

function daysInMonth(year, month) {
    return new Date(Date.UTC(year, month + 1, 0)).getUTCDate();
}

// FORMATTING

addFormatToken('M', ['MM', 2], 'Mo', function () {
    return this.month() + 1;
});

addFormatToken('MMM', 0, 0, function (format) {
    return this.localeData().monthsShort(this, format);
});

addFormatToken('MMMM', 0, 0, function (format) {
    return this.localeData().months(this, format);
});

// ALIASES

addUnitAlias('month', 'M');

// PRIORITY

addUnitPriority('month', 8);

// PARSING

addRegexToken('M',    match1to2);
addRegexToken('MM',   match1to2, match2);
addRegexToken('MMM',  function (isStrict, locale) {
    return locale.monthsShortRegex(isStrict);
});
addRegexToken('MMMM', function (isStrict, locale) {
    return locale.monthsRegex(isStrict);
});

addParseToken(['M', 'MM'], function (input, array) {
    array[MONTH] = toInt(input) - 1;
});

addParseToken(['MMM', 'MMMM'], function (input, array, config, token) {
    var month = config._locale.monthsParse(input, token, config._strict);
    // if we didn't find a month name, mark the date as invalid.
    if (month != null) {
        array[MONTH] = month;
    } else {
        getParsingFlags(config).invalidMonth = input;
    }
});

// LOCALES

var MONTHS_IN_FORMAT = /D[oD]?(\[[^\[\]]*\]|\s)+MMMM?/;
var defaultLocaleMonths = 'January_February_March_April_May_June_July_August_September_October_November_December'.split('_');
function localeMonths (m, format) {
    if (!m) {
        return isArray(this._months) ? this._months :
            this._months['standalone'];
    }
    return isArray(this._months) ? this._months[m.month()] :
        this._months[(this._months.isFormat || MONTHS_IN_FORMAT).test(format) ? 'format' : 'standalone'][m.month()];
}

var defaultLocaleMonthsShort = 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_');
function localeMonthsShort (m, format) {
    if (!m) {
        return isArray(this._monthsShort) ? this._monthsShort :
            this._monthsShort['standalone'];
    }
    return isArray(this._monthsShort) ? this._monthsShort[m.month()] :
        this._monthsShort[MONTHS_IN_FORMAT.test(format) ? 'format' : 'standalone'][m.month()];
}

function handleStrictParse(monthName, format, strict) {
    var i, ii, mom, llc = monthName.toLocaleLowerCase();
    if (!this._monthsParse) {
        // this is not used
        this._monthsParse = [];
        this._longMonthsParse = [];
        this._shortMonthsParse = [];
        for (i = 0; i < 12; ++i) {
            mom = createUTC([2000, i]);
            this._shortMonthsParse[i] = this.monthsShort(mom, '').toLocaleLowerCase();
            this._longMonthsParse[i] = this.months(mom, '').toLocaleLowerCase();
        }
    }

    if (strict) {
        if (format === 'MMM') {
            ii = indexOf$1.call(this._shortMonthsParse, llc);
            return ii !== -1 ? ii : null;
        } else {
            ii = indexOf$1.call(this._longMonthsParse, llc);
            return ii !== -1 ? ii : null;
        }
    } else {
        if (format === 'MMM') {
            ii = indexOf$1.call(this._shortMonthsParse, llc);
            if (ii !== -1) {
                return ii;
            }
            ii = indexOf$1.call(this._longMonthsParse, llc);
            return ii !== -1 ? ii : null;
        } else {
            ii = indexOf$1.call(this._longMonthsParse, llc);
            if (ii !== -1) {
                return ii;
            }
            ii = indexOf$1.call(this._shortMonthsParse, llc);
            return ii !== -1 ? ii : null;
        }
    }
}

function localeMonthsParse (monthName, format, strict) {
    var i, mom, regex;

    if (this._monthsParseExact) {
        return handleStrictParse.call(this, monthName, format, strict);
    }

    if (!this._monthsParse) {
        this._monthsParse = [];
        this._longMonthsParse = [];
        this._shortMonthsParse = [];
    }

    // TODO: add sorting
    // Sorting makes sure if one month (or abbr) is a prefix of another
    // see sorting in computeMonthsParse
    for (i = 0; i < 12; i++) {
        // make the regex if we don't have it already
        mom = createUTC([2000, i]);
        if (strict && !this._longMonthsParse[i]) {
            this._longMonthsParse[i] = new RegExp('^' + this.months(mom, '').replace('.', '') + '$', 'i');
            this._shortMonthsParse[i] = new RegExp('^' + this.monthsShort(mom, '').replace('.', '') + '$', 'i');
        }
        if (!strict && !this._monthsParse[i]) {
            regex = '^' + this.months(mom, '') + '|^' + this.monthsShort(mom, '');
            this._monthsParse[i] = new RegExp(regex.replace('.', ''), 'i');
        }
        // test the regex
        if (strict && format === 'MMMM' && this._longMonthsParse[i].test(monthName)) {
            return i;
        } else if (strict && format === 'MMM' && this._shortMonthsParse[i].test(monthName)) {
            return i;
        } else if (!strict && this._monthsParse[i].test(monthName)) {
            return i;
        }
    }
}

// MOMENTS

function setMonth (mom, value) {
    var dayOfMonth;

    if (!mom.isValid()) {
        // No op
        return mom;
    }

    if (typeof value === 'string') {
        if (/^\d+$/.test(value)) {
            value = toInt(value);
        } else {
            value = mom.localeData().monthsParse(value);
            // TODO: Another silent failure?
            if (!isNumber(value)) {
                return mom;
            }
        }
    }

    dayOfMonth = Math.min(mom.date(), daysInMonth(mom.year(), value));
    mom._d['set' + (mom._isUTC ? 'UTC' : '') + 'Month'](value, dayOfMonth);
    return mom;
}

function getSetMonth (value) {
    if (value != null) {
        setMonth(this, value);
        hooks.updateOffset(this, true);
        return this;
    } else {
        return get(this, 'Month');
    }
}

function getDaysInMonth () {
    return daysInMonth(this.year(), this.month());
}

var defaultMonthsShortRegex = matchWord;
function monthsShortRegex (isStrict) {
    if (this._monthsParseExact) {
        if (!hasOwnProp(this, '_monthsRegex')) {
            computeMonthsParse.call(this);
        }
        if (isStrict) {
            return this._monthsShortStrictRegex;
        } else {
            return this._monthsShortRegex;
        }
    } else {
        if (!hasOwnProp(this, '_monthsShortRegex')) {
            this._monthsShortRegex = defaultMonthsShortRegex;
        }
        return this._monthsShortStrictRegex && isStrict ?
            this._monthsShortStrictRegex : this._monthsShortRegex;
    }
}

var defaultMonthsRegex = matchWord;
function monthsRegex (isStrict) {
    if (this._monthsParseExact) {
        if (!hasOwnProp(this, '_monthsRegex')) {
            computeMonthsParse.call(this);
        }
        if (isStrict) {
            return this._monthsStrictRegex;
        } else {
            return this._monthsRegex;
        }
    } else {
        if (!hasOwnProp(this, '_monthsRegex')) {
            this._monthsRegex = defaultMonthsRegex;
        }
        return this._monthsStrictRegex && isStrict ?
            this._monthsStrictRegex : this._monthsRegex;
    }
}

function computeMonthsParse () {
    function cmpLenRev(a, b) {
        return b.length - a.length;
    }

    var shortPieces = [], longPieces = [], mixedPieces = [],
        i, mom;
    for (i = 0; i < 12; i++) {
        // make the regex if we don't have it already
        mom = createUTC([2000, i]);
        shortPieces.push(this.monthsShort(mom, ''));
        longPieces.push(this.months(mom, ''));
        mixedPieces.push(this.months(mom, ''));
        mixedPieces.push(this.monthsShort(mom, ''));
    }
    // Sorting makes sure if one month (or abbr) is a prefix of another it
    // will match the longer piece.
    shortPieces.sort(cmpLenRev);
    longPieces.sort(cmpLenRev);
    mixedPieces.sort(cmpLenRev);
    for (i = 0; i < 12; i++) {
        shortPieces[i] = regexEscape(shortPieces[i]);
        longPieces[i] = regexEscape(longPieces[i]);
    }
    for (i = 0; i < 24; i++) {
        mixedPieces[i] = regexEscape(mixedPieces[i]);
    }

    this._monthsRegex = new RegExp('^(' + mixedPieces.join('|') + ')', 'i');
    this._monthsShortRegex = this._monthsRegex;
    this._monthsStrictRegex = new RegExp('^(' + longPieces.join('|') + ')', 'i');
    this._monthsShortStrictRegex = new RegExp('^(' + shortPieces.join('|') + ')', 'i');
}

// FORMATTING

addFormatToken('Y', 0, 0, function () {
    var y = this.year();
    return y <= 9999 ? '' + y : '+' + y;
});

addFormatToken(0, ['YY', 2], 0, function () {
    return this.year() % 100;
});

addFormatToken(0, ['YYYY',   4],       0, 'year');
addFormatToken(0, ['YYYYY',  5],       0, 'year');
addFormatToken(0, ['YYYYYY', 6, true], 0, 'year');

// ALIASES

addUnitAlias('year', 'y');

// PRIORITIES

addUnitPriority('year', 1);

// PARSING

addRegexToken('Y',      matchSigned);
addRegexToken('YY',     match1to2, match2);
addRegexToken('YYYY',   match1to4, match4);
addRegexToken('YYYYY',  match1to6, match6);
addRegexToken('YYYYYY', match1to6, match6);

addParseToken(['YYYYY', 'YYYYYY'], YEAR);
addParseToken('YYYY', function (input, array) {
    array[YEAR] = input.length === 2 ? hooks.parseTwoDigitYear(input) : toInt(input);
});
addParseToken('YY', function (input, array) {
    array[YEAR] = hooks.parseTwoDigitYear(input);
});
addParseToken('Y', function (input, array) {
    array[YEAR] = parseInt(input, 10);
});

// HELPERS

function daysInYear(year) {
    return isLeapYear(year) ? 366 : 365;
}

function isLeapYear(year) {
    return (year % 4 === 0 && year % 100 !== 0) || year % 400 === 0;
}

// HOOKS

hooks.parseTwoDigitYear = function (input) {
    return toInt(input) + (toInt(input) > 68 ? 1900 : 2000);
};

// MOMENTS

var getSetYear = makeGetSet('FullYear', true);

function getIsLeapYear () {
    return isLeapYear(this.year());
}

function createDate (y, m, d, h, M, s, ms) {
    // can't just apply() to create a date:
    // https://stackoverflow.com/q/181348
    var date = new Date(y, m, d, h, M, s, ms);

    // the date constructor remaps years 0-99 to 1900-1999
    if (y < 100 && y >= 0 && isFinite(date.getFullYear())) {
        date.setFullYear(y);
    }
    return date;
}

function createUTCDate (y) {
    var date = new Date(Date.UTC.apply(null, arguments));

    // the Date.UTC function remaps years 0-99 to 1900-1999
    if (y < 100 && y >= 0 && isFinite(date.getUTCFullYear())) {
        date.setUTCFullYear(y);
    }
    return date;
}

// start-of-first-week - start-of-year
function firstWeekOffset(year, dow, doy) {
    var // first-week day -- which january is always in the first week (4 for iso, 1 for other)
        fwd = 7 + dow - doy,
        // first-week day local weekday -- which local weekday is fwd
        fwdlw = (7 + createUTCDate(year, 0, fwd).getUTCDay() - dow) % 7;

    return -fwdlw + fwd - 1;
}

// https://en.wikipedia.org/wiki/ISO_week_date#Calculating_a_date_given_the_year.2C_week_number_and_weekday
function dayOfYearFromWeeks(year, week, weekday, dow, doy) {
    var localWeekday = (7 + weekday - dow) % 7,
        weekOffset = firstWeekOffset(year, dow, doy),
        dayOfYear = 1 + 7 * (week - 1) + localWeekday + weekOffset,
        resYear, resDayOfYear;

    if (dayOfYear <= 0) {
        resYear = year - 1;
        resDayOfYear = daysInYear(resYear) + dayOfYear;
    } else if (dayOfYear > daysInYear(year)) {
        resYear = year + 1;
        resDayOfYear = dayOfYear - daysInYear(year);
    } else {
        resYear = year;
        resDayOfYear = dayOfYear;
    }

    return {
        year: resYear,
        dayOfYear: resDayOfYear
    };
}

function weekOfYear(mom, dow, doy) {
    var weekOffset = firstWeekOffset(mom.year(), dow, doy),
        week = Math.floor((mom.dayOfYear() - weekOffset - 1) / 7) + 1,
        resWeek, resYear;

    if (week < 1) {
        resYear = mom.year() - 1;
        resWeek = week + weeksInYear(resYear, dow, doy);
    } else if (week > weeksInYear(mom.year(), dow, doy)) {
        resWeek = week - weeksInYear(mom.year(), dow, doy);
        resYear = mom.year() + 1;
    } else {
        resYear = mom.year();
        resWeek = week;
    }

    return {
        week: resWeek,
        year: resYear
    };
}

function weeksInYear(year, dow, doy) {
    var weekOffset = firstWeekOffset(year, dow, doy),
        weekOffsetNext = firstWeekOffset(year + 1, dow, doy);
    return (daysInYear(year) - weekOffset + weekOffsetNext) / 7;
}

// FORMATTING

addFormatToken('w', ['ww', 2], 'wo', 'week');
addFormatToken('W', ['WW', 2], 'Wo', 'isoWeek');

// ALIASES

addUnitAlias('week', 'w');
addUnitAlias('isoWeek', 'W');

// PRIORITIES

addUnitPriority('week', 5);
addUnitPriority('isoWeek', 5);

// PARSING

addRegexToken('w',  match1to2);
addRegexToken('ww', match1to2, match2);
addRegexToken('W',  match1to2);
addRegexToken('WW', match1to2, match2);

addWeekParseToken(['w', 'ww', 'W', 'WW'], function (input, week, config, token) {
    week[token.substr(0, 1)] = toInt(input);
});

// HELPERS

// LOCALES

function localeWeek (mom) {
    return weekOfYear(mom, this._week.dow, this._week.doy).week;
}

var defaultLocaleWeek = {
    dow : 0, // Sunday is the first day of the week.
    doy : 6  // The week that contains Jan 1st is the first week of the year.
};

function localeFirstDayOfWeek () {
    return this._week.dow;
}

function localeFirstDayOfYear () {
    return this._week.doy;
}

// MOMENTS

function getSetWeek (input) {
    var week = this.localeData().week(this);
    return input == null ? week : this.add((input - week) * 7, 'd');
}

function getSetISOWeek (input) {
    var week = weekOfYear(this, 1, 4).week;
    return input == null ? week : this.add((input - week) * 7, 'd');
}

// FORMATTING

addFormatToken('d', 0, 'do', 'day');

addFormatToken('dd', 0, 0, function (format) {
    return this.localeData().weekdaysMin(this, format);
});

addFormatToken('ddd', 0, 0, function (format) {
    return this.localeData().weekdaysShort(this, format);
});

addFormatToken('dddd', 0, 0, function (format) {
    return this.localeData().weekdays(this, format);
});

addFormatToken('e', 0, 0, 'weekday');
addFormatToken('E', 0, 0, 'isoWeekday');

// ALIASES

addUnitAlias('day', 'd');
addUnitAlias('weekday', 'e');
addUnitAlias('isoWeekday', 'E');

// PRIORITY
addUnitPriority('day', 11);
addUnitPriority('weekday', 11);
addUnitPriority('isoWeekday', 11);

// PARSING

addRegexToken('d',    match1to2);
addRegexToken('e',    match1to2);
addRegexToken('E',    match1to2);
addRegexToken('dd',   function (isStrict, locale) {
    return locale.weekdaysMinRegex(isStrict);
});
addRegexToken('ddd',   function (isStrict, locale) {
    return locale.weekdaysShortRegex(isStrict);
});
addRegexToken('dddd',   function (isStrict, locale) {
    return locale.weekdaysRegex(isStrict);
});

addWeekParseToken(['dd', 'ddd', 'dddd'], function (input, week, config, token) {
    var weekday = config._locale.weekdaysParse(input, token, config._strict);
    // if we didn't get a weekday name, mark the date as invalid
    if (weekday != null) {
        week.d = weekday;
    } else {
        getParsingFlags(config).invalidWeekday = input;
    }
});

addWeekParseToken(['d', 'e', 'E'], function (input, week, config, token) {
    week[token] = toInt(input);
});

// HELPERS

function parseWeekday(input, locale) {
    if (typeof input !== 'string') {
        return input;
    }

    if (!isNaN(input)) {
        return parseInt(input, 10);
    }

    input = locale.weekdaysParse(input);
    if (typeof input === 'number') {
        return input;
    }

    return null;
}

function parseIsoWeekday(input, locale) {
    if (typeof input === 'string') {
        return locale.weekdaysParse(input) % 7 || 7;
    }
    return isNaN(input) ? null : input;
}

// LOCALES

var defaultLocaleWeekdays = 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split('_');
function localeWeekdays (m, format) {
    if (!m) {
        return isArray(this._weekdays) ? this._weekdays :
            this._weekdays['standalone'];
    }
    return isArray(this._weekdays) ? this._weekdays[m.day()] :
        this._weekdays[this._weekdays.isFormat.test(format) ? 'format' : 'standalone'][m.day()];
}

var defaultLocaleWeekdaysShort = 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_');
function localeWeekdaysShort (m) {
    return (m) ? this._weekdaysShort[m.day()] : this._weekdaysShort;
}

var defaultLocaleWeekdaysMin = 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_');
function localeWeekdaysMin (m) {
    return (m) ? this._weekdaysMin[m.day()] : this._weekdaysMin;
}

function handleStrictParse$1(weekdayName, format, strict) {
    var i, ii, mom, llc = weekdayName.toLocaleLowerCase();
    if (!this._weekdaysParse) {
        this._weekdaysParse = [];
        this._shortWeekdaysParse = [];
        this._minWeekdaysParse = [];

        for (i = 0; i < 7; ++i) {
            mom = createUTC([2000, 1]).day(i);
            this._minWeekdaysParse[i] = this.weekdaysMin(mom, '').toLocaleLowerCase();
            this._shortWeekdaysParse[i] = this.weekdaysShort(mom, '').toLocaleLowerCase();
            this._weekdaysParse[i] = this.weekdays(mom, '').toLocaleLowerCase();
        }
    }

    if (strict) {
        if (format === 'dddd') {
            ii = indexOf$1.call(this._weekdaysParse, llc);
            return ii !== -1 ? ii : null;
        } else if (format === 'ddd') {
            ii = indexOf$1.call(this._shortWeekdaysParse, llc);
            return ii !== -1 ? ii : null;
        } else {
            ii = indexOf$1.call(this._minWeekdaysParse, llc);
            return ii !== -1 ? ii : null;
        }
    } else {
        if (format === 'dddd') {
            ii = indexOf$1.call(this._weekdaysParse, llc);
            if (ii !== -1) {
                return ii;
            }
            ii = indexOf$1.call(this._shortWeekdaysParse, llc);
            if (ii !== -1) {
                return ii;
            }
            ii = indexOf$1.call(this._minWeekdaysParse, llc);
            return ii !== -1 ? ii : null;
        } else if (format === 'ddd') {
            ii = indexOf$1.call(this._shortWeekdaysParse, llc);
            if (ii !== -1) {
                return ii;
            }
            ii = indexOf$1.call(this._weekdaysParse, llc);
            if (ii !== -1) {
                return ii;
            }
            ii = indexOf$1.call(this._minWeekdaysParse, llc);
            return ii !== -1 ? ii : null;
        } else {
            ii = indexOf$1.call(this._minWeekdaysParse, llc);
            if (ii !== -1) {
                return ii;
            }
            ii = indexOf$1.call(this._weekdaysParse, llc);
            if (ii !== -1) {
                return ii;
            }
            ii = indexOf$1.call(this._shortWeekdaysParse, llc);
            return ii !== -1 ? ii : null;
        }
    }
}

function localeWeekdaysParse (weekdayName, format, strict) {
    var i, mom, regex;

    if (this._weekdaysParseExact) {
        return handleStrictParse$1.call(this, weekdayName, format, strict);
    }

    if (!this._weekdaysParse) {
        this._weekdaysParse = [];
        this._minWeekdaysParse = [];
        this._shortWeekdaysParse = [];
        this._fullWeekdaysParse = [];
    }

    for (i = 0; i < 7; i++) {
        // make the regex if we don't have it already

        mom = createUTC([2000, 1]).day(i);
        if (strict && !this._fullWeekdaysParse[i]) {
            this._fullWeekdaysParse[i] = new RegExp('^' + this.weekdays(mom, '').replace('.', '\.?') + '$', 'i');
            this._shortWeekdaysParse[i] = new RegExp('^' + this.weekdaysShort(mom, '').replace('.', '\.?') + '$', 'i');
            this._minWeekdaysParse[i] = new RegExp('^' + this.weekdaysMin(mom, '').replace('.', '\.?') + '$', 'i');
        }
        if (!this._weekdaysParse[i]) {
            regex = '^' + this.weekdays(mom, '') + '|^' + this.weekdaysShort(mom, '') + '|^' + this.weekdaysMin(mom, '');
            this._weekdaysParse[i] = new RegExp(regex.replace('.', ''), 'i');
        }
        // test the regex
        if (strict && format === 'dddd' && this._fullWeekdaysParse[i].test(weekdayName)) {
            return i;
        } else if (strict && format === 'ddd' && this._shortWeekdaysParse[i].test(weekdayName)) {
            return i;
        } else if (strict && format === 'dd' && this._minWeekdaysParse[i].test(weekdayName)) {
            return i;
        } else if (!strict && this._weekdaysParse[i].test(weekdayName)) {
            return i;
        }
    }
}

// MOMENTS

function getSetDayOfWeek (input) {
    if (!this.isValid()) {
        return input != null ? this : NaN;
    }
    var day = this._isUTC ? this._d.getUTCDay() : this._d.getDay();
    if (input != null) {
        input = parseWeekday(input, this.localeData());
        return this.add(input - day, 'd');
    } else {
        return day;
    }
}

function getSetLocaleDayOfWeek (input) {
    if (!this.isValid()) {
        return input != null ? this : NaN;
    }
    var weekday = (this.day() + 7 - this.localeData()._week.dow) % 7;
    return input == null ? weekday : this.add(input - weekday, 'd');
}

function getSetISODayOfWeek (input) {
    if (!this.isValid()) {
        return input != null ? this : NaN;
    }

    // behaves the same as moment#day except
    // as a getter, returns 7 instead of 0 (1-7 range instead of 0-6)
    // as a setter, sunday should belong to the previous week.

    if (input != null) {
        var weekday = parseIsoWeekday(input, this.localeData());
        return this.day(this.day() % 7 ? weekday : weekday - 7);
    } else {
        return this.day() || 7;
    }
}

var defaultWeekdaysRegex = matchWord;
function weekdaysRegex (isStrict) {
    if (this._weekdaysParseExact) {
        if (!hasOwnProp(this, '_weekdaysRegex')) {
            computeWeekdaysParse.call(this);
        }
        if (isStrict) {
            return this._weekdaysStrictRegex;
        } else {
            return this._weekdaysRegex;
        }
    } else {
        if (!hasOwnProp(this, '_weekdaysRegex')) {
            this._weekdaysRegex = defaultWeekdaysRegex;
        }
        return this._weekdaysStrictRegex && isStrict ?
            this._weekdaysStrictRegex : this._weekdaysRegex;
    }
}

var defaultWeekdaysShortRegex = matchWord;
function weekdaysShortRegex (isStrict) {
    if (this._weekdaysParseExact) {
        if (!hasOwnProp(this, '_weekdaysRegex')) {
            computeWeekdaysParse.call(this);
        }
        if (isStrict) {
            return this._weekdaysShortStrictRegex;
        } else {
            return this._weekdaysShortRegex;
        }
    } else {
        if (!hasOwnProp(this, '_weekdaysShortRegex')) {
            this._weekdaysShortRegex = defaultWeekdaysShortRegex;
        }
        return this._weekdaysShortStrictRegex && isStrict ?
            this._weekdaysShortStrictRegex : this._weekdaysShortRegex;
    }
}

var defaultWeekdaysMinRegex = matchWord;
function weekdaysMinRegex (isStrict) {
    if (this._weekdaysParseExact) {
        if (!hasOwnProp(this, '_weekdaysRegex')) {
            computeWeekdaysParse.call(this);
        }
        if (isStrict) {
            return this._weekdaysMinStrictRegex;
        } else {
            return this._weekdaysMinRegex;
        }
    } else {
        if (!hasOwnProp(this, '_weekdaysMinRegex')) {
            this._weekdaysMinRegex = defaultWeekdaysMinRegex;
        }
        return this._weekdaysMinStrictRegex && isStrict ?
            this._weekdaysMinStrictRegex : this._weekdaysMinRegex;
    }
}


function computeWeekdaysParse () {
    function cmpLenRev(a, b) {
        return b.length - a.length;
    }

    var minPieces = [], shortPieces = [], longPieces = [], mixedPieces = [],
        i, mom, minp, shortp, longp;
    for (i = 0; i < 7; i++) {
        // make the regex if we don't have it already
        mom = createUTC([2000, 1]).day(i);
        minp = this.weekdaysMin(mom, '');
        shortp = this.weekdaysShort(mom, '');
        longp = this.weekdays(mom, '');
        minPieces.push(minp);
        shortPieces.push(shortp);
        longPieces.push(longp);
        mixedPieces.push(minp);
        mixedPieces.push(shortp);
        mixedPieces.push(longp);
    }
    // Sorting makes sure if one weekday (or abbr) is a prefix of another it
    // will match the longer piece.
    minPieces.sort(cmpLenRev);
    shortPieces.sort(cmpLenRev);
    longPieces.sort(cmpLenRev);
    mixedPieces.sort(cmpLenRev);
    for (i = 0; i < 7; i++) {
        shortPieces[i] = regexEscape(shortPieces[i]);
        longPieces[i] = regexEscape(longPieces[i]);
        mixedPieces[i] = regexEscape(mixedPieces[i]);
    }

    this._weekdaysRegex = new RegExp('^(' + mixedPieces.join('|') + ')', 'i');
    this._weekdaysShortRegex = this._weekdaysRegex;
    this._weekdaysMinRegex = this._weekdaysRegex;

    this._weekdaysStrictRegex = new RegExp('^(' + longPieces.join('|') + ')', 'i');
    this._weekdaysShortStrictRegex = new RegExp('^(' + shortPieces.join('|') + ')', 'i');
    this._weekdaysMinStrictRegex = new RegExp('^(' + minPieces.join('|') + ')', 'i');
}

// FORMATTING

function hFormat() {
    return this.hours() % 12 || 12;
}

function kFormat() {
    return this.hours() || 24;
}

addFormatToken('H', ['HH', 2], 0, 'hour');
addFormatToken('h', ['hh', 2], 0, hFormat);
addFormatToken('k', ['kk', 2], 0, kFormat);

addFormatToken('hmm', 0, 0, function () {
    return '' + hFormat.apply(this) + zeroFill(this.minutes(), 2);
});

addFormatToken('hmmss', 0, 0, function () {
    return '' + hFormat.apply(this) + zeroFill(this.minutes(), 2) +
        zeroFill(this.seconds(), 2);
});

addFormatToken('Hmm', 0, 0, function () {
    return '' + this.hours() + zeroFill(this.minutes(), 2);
});

addFormatToken('Hmmss', 0, 0, function () {
    return '' + this.hours() + zeroFill(this.minutes(), 2) +
        zeroFill(this.seconds(), 2);
});

function meridiem (token, lowercase) {
    addFormatToken(token, 0, 0, function () {
        return this.localeData().meridiem(this.hours(), this.minutes(), lowercase);
    });
}

meridiem('a', true);
meridiem('A', false);

// ALIASES

addUnitAlias('hour', 'h');

// PRIORITY
addUnitPriority('hour', 13);

// PARSING

function matchMeridiem (isStrict, locale) {
    return locale._meridiemParse;
}

addRegexToken('a',  matchMeridiem);
addRegexToken('A',  matchMeridiem);
addRegexToken('H',  match1to2);
addRegexToken('h',  match1to2);
addRegexToken('k',  match1to2);
addRegexToken('HH', match1to2, match2);
addRegexToken('hh', match1to2, match2);
addRegexToken('kk', match1to2, match2);

addRegexToken('hmm', match3to4);
addRegexToken('hmmss', match5to6);
addRegexToken('Hmm', match3to4);
addRegexToken('Hmmss', match5to6);

addParseToken(['H', 'HH'], HOUR);
addParseToken(['k', 'kk'], function (input, array, config) {
    var kInput = toInt(input);
    array[HOUR] = kInput === 24 ? 0 : kInput;
});
addParseToken(['a', 'A'], function (input, array, config) {
    config._isPm = config._locale.isPM(input);
    config._meridiem = input;
});
addParseToken(['h', 'hh'], function (input, array, config) {
    array[HOUR] = toInt(input);
    getParsingFlags(config).bigHour = true;
});
addParseToken('hmm', function (input, array, config) {
    var pos = input.length - 2;
    array[HOUR] = toInt(input.substr(0, pos));
    array[MINUTE] = toInt(input.substr(pos));
    getParsingFlags(config).bigHour = true;
});
addParseToken('hmmss', function (input, array, config) {
    var pos1 = input.length - 4;
    var pos2 = input.length - 2;
    array[HOUR] = toInt(input.substr(0, pos1));
    array[MINUTE] = toInt(input.substr(pos1, 2));
    array[SECOND] = toInt(input.substr(pos2));
    getParsingFlags(config).bigHour = true;
});
addParseToken('Hmm', function (input, array, config) {
    var pos = input.length - 2;
    array[HOUR] = toInt(input.substr(0, pos));
    array[MINUTE] = toInt(input.substr(pos));
});
addParseToken('Hmmss', function (input, array, config) {
    var pos1 = input.length - 4;
    var pos2 = input.length - 2;
    array[HOUR] = toInt(input.substr(0, pos1));
    array[MINUTE] = toInt(input.substr(pos1, 2));
    array[SECOND] = toInt(input.substr(pos2));
});

// LOCALES

function localeIsPM (input) {
    // IE8 Quirks Mode & IE7 Standards Mode do not allow accessing strings like arrays
    // Using charAt should be more compatible.
    return ((input + '').toLowerCase().charAt(0) === 'p');
}

var defaultLocaleMeridiemParse = /[ap]\.?m?\.?/i;
function localeMeridiem (hours, minutes, isLower) {
    if (hours > 11) {
        return isLower ? 'pm' : 'PM';
    } else {
        return isLower ? 'am' : 'AM';
    }
}


// MOMENTS

// Setting the hour should keep the time, because the user explicitly
// specified which hour he wants. So trying to maintain the same hour (in
// a new timezone) makes sense. Adding/subtracting hours does not follow
// this rule.
var getSetHour = makeGetSet('Hours', true);

// months
// week
// weekdays
// meridiem
var baseConfig = {
    calendar: defaultCalendar,
    longDateFormat: defaultLongDateFormat,
    invalidDate: defaultInvalidDate,
    ordinal: defaultOrdinal,
    dayOfMonthOrdinalParse: defaultDayOfMonthOrdinalParse,
    relativeTime: defaultRelativeTime,

    months: defaultLocaleMonths,
    monthsShort: defaultLocaleMonthsShort,

    week: defaultLocaleWeek,

    weekdays: defaultLocaleWeekdays,
    weekdaysMin: defaultLocaleWeekdaysMin,
    weekdaysShort: defaultLocaleWeekdaysShort,

    meridiemParse: defaultLocaleMeridiemParse
};

// internal storage for locale config files
var locales = {};
var localeFamilies = {};
var globalLocale;

function normalizeLocale(key) {
    return key ? key.toLowerCase().replace('_', '-') : key;
}

// pick the locale from the array
// try ['en-au', 'en-gb'] as 'en-au', 'en-gb', 'en', as in move through the list trying each
// substring from most specific to least, but move to the next array item if it's a more specific variant than the current root
function chooseLocale(names) {
    var i = 0, j, next, locale, split;

    while (i < names.length) {
        split = normalizeLocale(names[i]).split('-');
        j = split.length;
        next = normalizeLocale(names[i + 1]);
        next = next ? next.split('-') : null;
        while (j > 0) {
            locale = loadLocale(split.slice(0, j).join('-'));
            if (locale) {
                return locale;
            }
            if (next && next.length >= j && compareArrays(split, next, true) >= j - 1) {
                //the next array item is better than a shallower substring of this one
                break;
            }
            j--;
        }
        i++;
    }
    return null;
}

function loadLocale(name) {
    var oldLocale = null;
    // TODO: Find a better way to register and load all the locales in Node
    if (!locales[name] && (typeof module !== 'undefined') &&
            module && module.exports) {
        try {
            oldLocale = globalLocale._abbr;
            require('./locale/' + name);
            // because defineLocale currently also sets the global locale, we
            // want to undo that for lazy loaded locales
            getSetGlobalLocale(oldLocale);
        } catch (e) { }
    }
    return locales[name];
}

// This function will load locale and then set the global locale.  If
// no arguments are passed in, it will simply return the current global
// locale key.
function getSetGlobalLocale (key, values) {
    var data;
    if (key) {
        if (isUndefined(values)) {
            data = getLocale(key);
        }
        else {
            data = defineLocale(key, values);
        }

        if (data) {
            // moment.duration._locale = moment._locale = data;
            globalLocale = data;
        }
    }

    return globalLocale._abbr;
}

function defineLocale (name, config) {
    if (config !== null) {
        var parentConfig = baseConfig;
        config.abbr = name;
        if (locales[name] != null) {
            deprecateSimple('defineLocaleOverride',
                    'use moment.updateLocale(localeName, config) to change ' +
                    'an existing locale. moment.defineLocale(localeName, ' +
                    'config) should only be used for creating a new locale ' +
                    'See http://momentjs.com/guides/#/warnings/define-locale/ for more info.');
            parentConfig = locales[name]._config;
        } else if (config.parentLocale != null) {
            if (locales[config.parentLocale] != null) {
                parentConfig = locales[config.parentLocale]._config;
            } else {
                if (!localeFamilies[config.parentLocale]) {
                    localeFamilies[config.parentLocale] = [];
                }
                localeFamilies[config.parentLocale].push({
                    name: name,
                    config: config
                });
                return null;
            }
        }
        locales[name] = new Locale(mergeConfigs(parentConfig, config));

        if (localeFamilies[name]) {
            localeFamilies[name].forEach(function (x) {
                defineLocale(x.name, x.config);
            });
        }

        // backwards compat for now: also set the locale
        // make sure we set the locale AFTER all child locales have been
        // created, so we won't end up with the child locale set.
        getSetGlobalLocale(name);


        return locales[name];
    } else {
        // useful for testing
        delete locales[name];
        return null;
    }
}

function updateLocale(name, config) {
    if (config != null) {
        var locale, parentConfig = baseConfig;
        // MERGE
        if (locales[name] != null) {
            parentConfig = locales[name]._config;
        }
        config = mergeConfigs(parentConfig, config);
        locale = new Locale(config);
        locale.parentLocale = locales[name];
        locales[name] = locale;

        // backwards compat for now: also set the locale
        getSetGlobalLocale(name);
    } else {
        // pass null for config to unupdate, useful for tests
        if (locales[name] != null) {
            if (locales[name].parentLocale != null) {
                locales[name] = locales[name].parentLocale;
            } else if (locales[name] != null) {
                delete locales[name];
            }
        }
    }
    return locales[name];
}

// returns locale data
function getLocale (key) {
    var locale;

    if (key && key._locale && key._locale._abbr) {
        key = key._locale._abbr;
    }

    if (!key) {
        return globalLocale;
    }

    if (!isArray(key)) {
        //short-circuit everything else
        locale = loadLocale(key);
        if (locale) {
            return locale;
        }
        key = [key];
    }

    return chooseLocale(key);
}

function listLocales() {
    return keys$1(locales);
}

function checkOverflow (m) {
    var overflow;
    var a = m._a;

    if (a && getParsingFlags(m).overflow === -2) {
        overflow =
            a[MONTH]       < 0 || a[MONTH]       > 11  ? MONTH :
            a[DATE]        < 1 || a[DATE]        > daysInMonth(a[YEAR], a[MONTH]) ? DATE :
            a[HOUR]        < 0 || a[HOUR]        > 24 || (a[HOUR] === 24 && (a[MINUTE] !== 0 || a[SECOND] !== 0 || a[MILLISECOND] !== 0)) ? HOUR :
            a[MINUTE]      < 0 || a[MINUTE]      > 59  ? MINUTE :
            a[SECOND]      < 0 || a[SECOND]      > 59  ? SECOND :
            a[MILLISECOND] < 0 || a[MILLISECOND] > 999 ? MILLISECOND :
            -1;

        if (getParsingFlags(m)._overflowDayOfYear && (overflow < YEAR || overflow > DATE)) {
            overflow = DATE;
        }
        if (getParsingFlags(m)._overflowWeeks && overflow === -1) {
            overflow = WEEK;
        }
        if (getParsingFlags(m)._overflowWeekday && overflow === -1) {
            overflow = WEEKDAY;
        }

        getParsingFlags(m).overflow = overflow;
    }

    return m;
}

// iso 8601 regex
// 0000-00-00 0000-W00 or 0000-W00-0 + T + 00 or 00:00 or 00:00:00 or 00:00:00.000 + +00:00 or +0000 or +00)
var extendedIsoRegex = /^\s*((?:[+-]\d{6}|\d{4})-(?:\d\d-\d\d|W\d\d-\d|W\d\d|\d\d\d|\d\d))(?:(T| )(\d\d(?::\d\d(?::\d\d(?:[.,]\d+)?)?)?)([\+\-]\d\d(?::?\d\d)?|\s*Z)?)?$/;
var basicIsoRegex = /^\s*((?:[+-]\d{6}|\d{4})(?:\d\d\d\d|W\d\d\d|W\d\d|\d\d\d|\d\d))(?:(T| )(\d\d(?:\d\d(?:\d\d(?:[.,]\d+)?)?)?)([\+\-]\d\d(?::?\d\d)?|\s*Z)?)?$/;

var tzRegex = /Z|[+-]\d\d(?::?\d\d)?/;

var isoDates = [
    ['YYYYYY-MM-DD', /[+-]\d{6}-\d\d-\d\d/],
    ['YYYY-MM-DD', /\d{4}-\d\d-\d\d/],
    ['GGGG-[W]WW-E', /\d{4}-W\d\d-\d/],
    ['GGGG-[W]WW', /\d{4}-W\d\d/, false],
    ['YYYY-DDD', /\d{4}-\d{3}/],
    ['YYYY-MM', /\d{4}-\d\d/, false],
    ['YYYYYYMMDD', /[+-]\d{10}/],
    ['YYYYMMDD', /\d{8}/],
    // YYYYMM is NOT allowed by the standard
    ['GGGG[W]WWE', /\d{4}W\d{3}/],
    ['GGGG[W]WW', /\d{4}W\d{2}/, false],
    ['YYYYDDD', /\d{7}/]
];

// iso time formats and regexes
var isoTimes = [
    ['HH:mm:ss.SSSS', /\d\d:\d\d:\d\d\.\d+/],
    ['HH:mm:ss,SSSS', /\d\d:\d\d:\d\d,\d+/],
    ['HH:mm:ss', /\d\d:\d\d:\d\d/],
    ['HH:mm', /\d\d:\d\d/],
    ['HHmmss.SSSS', /\d\d\d\d\d\d\.\d+/],
    ['HHmmss,SSSS', /\d\d\d\d\d\d,\d+/],
    ['HHmmss', /\d\d\d\d\d\d/],
    ['HHmm', /\d\d\d\d/],
    ['HH', /\d\d/]
];

var aspNetJsonRegex = /^\/?Date\((\-?\d+)/i;

// date from iso format
function configFromISO(config) {
    var i, l,
        string = config._i,
        match = extendedIsoRegex.exec(string) || basicIsoRegex.exec(string),
        allowTime, dateFormat, timeFormat, tzFormat;

    if (match) {
        getParsingFlags(config).iso = true;

        for (i = 0, l = isoDates.length; i < l; i++) {
            if (isoDates[i][1].exec(match[1])) {
                dateFormat = isoDates[i][0];
                allowTime = isoDates[i][2] !== false;
                break;
            }
        }
        if (dateFormat == null) {
            config._isValid = false;
            return;
        }
        if (match[3]) {
            for (i = 0, l = isoTimes.length; i < l; i++) {
                if (isoTimes[i][1].exec(match[3])) {
                    // match[2] should be 'T' or space
                    timeFormat = (match[2] || ' ') + isoTimes[i][0];
                    break;
                }
            }
            if (timeFormat == null) {
                config._isValid = false;
                return;
            }
        }
        if (!allowTime && timeFormat != null) {
            config._isValid = false;
            return;
        }
        if (match[4]) {
            if (tzRegex.exec(match[4])) {
                tzFormat = 'Z';
            } else {
                config._isValid = false;
                return;
            }
        }
        config._f = dateFormat + (timeFormat || '') + (tzFormat || '');
        configFromStringAndFormat(config);
    } else {
        config._isValid = false;
    }
}

// RFC 2822 regex: For details see https://tools.ietf.org/html/rfc2822#section-3.3
var basicRfcRegex = /^((?:Mon|Tue|Wed|Thu|Fri|Sat|Sun),?\s)?(\d?\d\s(?:Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)\s(?:\d\d)?\d\d\s)(\d\d:\d\d)(\:\d\d)?(\s(?:UT|GMT|[ECMP][SD]T|[A-IK-Za-ik-z]|[+-]\d{4}))$/;

// date and time from ref 2822 format
function configFromRFC2822(config) {
    var string, match, dayFormat,
        dateFormat, timeFormat, tzFormat;
    var timezones = {
        ' GMT': ' +0000',
        ' EDT': ' -0400',
        ' EST': ' -0500',
        ' CDT': ' -0500',
        ' CST': ' -0600',
        ' MDT': ' -0600',
        ' MST': ' -0700',
        ' PDT': ' -0700',
        ' PST': ' -0800'
    };
    var military = 'YXWVUTSRQPONZABCDEFGHIKLM';
    var timezone, timezoneIndex;

    string = config._i
        .replace(/\([^\)]*\)|[\n\t]/g, ' ') // Remove comments and folding whitespace
        .replace(/(\s\s+)/g, ' ') // Replace multiple-spaces with a single space
        .replace(/^\s|\s$/g, ''); // Remove leading and trailing spaces
    match = basicRfcRegex.exec(string);

    if (match) {
        dayFormat = match[1] ? 'ddd' + ((match[1].length === 5) ? ', ' : ' ') : '';
        dateFormat = 'D MMM ' + ((match[2].length > 10) ? 'YYYY ' : 'YY ');
        timeFormat = 'HH:mm' + (match[4] ? ':ss' : '');

        // TODO: Replace the vanilla JS Date object with an indepentent day-of-week check.
        if (match[1]) { // day of week given
            var momentDate = new Date(match[2]);
            var momentDay = ['Sun','Mon','Tue','Wed','Thu','Fri','Sat'][momentDate.getDay()];

            if (match[1].substr(0,3) !== momentDay) {
                getParsingFlags(config).weekdayMismatch = true;
                config._isValid = false;
                return;
            }
        }

        switch (match[5].length) {
            case 2: // military
                if (timezoneIndex === 0) {
                    timezone = ' +0000';
                } else {
                    timezoneIndex = military.indexOf(match[5][1].toUpperCase()) - 12;
                    timezone = ((timezoneIndex < 0) ? ' -' : ' +') +
                        (('' + timezoneIndex).replace(/^-?/, '0')).match(/..$/)[0] + '00';
                }
                break;
            case 4: // Zone
                timezone = timezones[match[5]];
                break;
            default: // UT or +/-9999
                timezone = timezones[' GMT'];
        }
        match[5] = timezone;
        config._i = match.splice(1).join('');
        tzFormat = ' ZZ';
        config._f = dayFormat + dateFormat + timeFormat + tzFormat;
        configFromStringAndFormat(config);
        getParsingFlags(config).rfc2822 = true;
    } else {
        config._isValid = false;
    }
}

// date from iso format or fallback
function configFromString(config) {
    var matched = aspNetJsonRegex.exec(config._i);

    if (matched !== null) {
        config._d = new Date(+matched[1]);
        return;
    }

    configFromISO(config);
    if (config._isValid === false) {
        delete config._isValid;
    } else {
        return;
    }

    configFromRFC2822(config);
    if (config._isValid === false) {
        delete config._isValid;
    } else {
        return;
    }

    // Final attempt, use Input Fallback
    hooks.createFromInputFallback(config);
}

hooks.createFromInputFallback = deprecate(
    'value provided is not in a recognized RFC2822 or ISO format. moment construction falls back to js Date(), ' +
    'which is not reliable across all browsers and versions. Non RFC2822/ISO date formats are ' +
    'discouraged and will be removed in an upcoming major release. Please refer to ' +
    'http://momentjs.com/guides/#/warnings/js-date/ for more info.',
    function (config) {
        config._d = new Date(config._i + (config._useUTC ? ' UTC' : ''));
    }
);

// Pick the first defined of two or three arguments.
function defaults(a, b, c) {
    if (a != null) {
        return a;
    }
    if (b != null) {
        return b;
    }
    return c;
}

function currentDateArray(config) {
    // hooks is actually the exported moment object
    var nowValue = new Date(hooks.now());
    if (config._useUTC) {
        return [nowValue.getUTCFullYear(), nowValue.getUTCMonth(), nowValue.getUTCDate()];
    }
    return [nowValue.getFullYear(), nowValue.getMonth(), nowValue.getDate()];
}

// convert an array to a date.
// the array should mirror the parameters below
// note: all values past the year are optional and will default to the lowest possible value.
// [year, month, day , hour, minute, second, millisecond]
function configFromArray (config) {
    var i, date, input = [], currentDate, yearToUse;

    if (config._d) {
        return;
    }

    currentDate = currentDateArray(config);

    //compute day of the year from weeks and weekdays
    if (config._w && config._a[DATE] == null && config._a[MONTH] == null) {
        dayOfYearFromWeekInfo(config);
    }

    //if the day of the year is set, figure out what it is
    if (config._dayOfYear != null) {
        yearToUse = defaults(config._a[YEAR], currentDate[YEAR]);

        if (config._dayOfYear > daysInYear(yearToUse) || config._dayOfYear === 0) {
            getParsingFlags(config)._overflowDayOfYear = true;
        }

        date = createUTCDate(yearToUse, 0, config._dayOfYear);
        config._a[MONTH] = date.getUTCMonth();
        config._a[DATE] = date.getUTCDate();
    }

    // Default to current date.
    // * if no year, month, day of month are given, default to today
    // * if day of month is given, default month and year
    // * if month is given, default only year
    // * if year is given, don't default anything
    for (i = 0; i < 3 && config._a[i] == null; ++i) {
        config._a[i] = input[i] = currentDate[i];
    }

    // Zero out whatever was not defaulted, including time
    for (; i < 7; i++) {
        config._a[i] = input[i] = (config._a[i] == null) ? (i === 2 ? 1 : 0) : config._a[i];
    }

    // Check for 24:00:00.000
    if (config._a[HOUR] === 24 &&
            config._a[MINUTE] === 0 &&
            config._a[SECOND] === 0 &&
            config._a[MILLISECOND] === 0) {
        config._nextDay = true;
        config._a[HOUR] = 0;
    }

    config._d = (config._useUTC ? createUTCDate : createDate).apply(null, input);
    // Apply timezone offset from input. The actual utcOffset can be changed
    // with parseZone.
    if (config._tzm != null) {
        config._d.setUTCMinutes(config._d.getUTCMinutes() - config._tzm);
    }

    if (config._nextDay) {
        config._a[HOUR] = 24;
    }
}

function dayOfYearFromWeekInfo(config) {
    var w, weekYear, week, weekday, dow, doy, temp, weekdayOverflow;

    w = config._w;
    if (w.GG != null || w.W != null || w.E != null) {
        dow = 1;
        doy = 4;

        // TODO: We need to take the current isoWeekYear, but that depends on
        // how we interpret now (local, utc, fixed offset). So create
        // a now version of current config (take local/utc/offset flags, and
        // create now).
        weekYear = defaults(w.GG, config._a[YEAR], weekOfYear(createLocal(), 1, 4).year);
        week = defaults(w.W, 1);
        weekday = defaults(w.E, 1);
        if (weekday < 1 || weekday > 7) {
            weekdayOverflow = true;
        }
    } else {
        dow = config._locale._week.dow;
        doy = config._locale._week.doy;

        var curWeek = weekOfYear(createLocal(), dow, doy);

        weekYear = defaults(w.gg, config._a[YEAR], curWeek.year);

        // Default to current week.
        week = defaults(w.w, curWeek.week);

        if (w.d != null) {
            // weekday -- low day numbers are considered next week
            weekday = w.d;
            if (weekday < 0 || weekday > 6) {
                weekdayOverflow = true;
            }
        } else if (w.e != null) {
            // local weekday -- counting starts from begining of week
            weekday = w.e + dow;
            if (w.e < 0 || w.e > 6) {
                weekdayOverflow = true;
            }
        } else {
            // default to begining of week
            weekday = dow;
        }
    }
    if (week < 1 || week > weeksInYear(weekYear, dow, doy)) {
        getParsingFlags(config)._overflowWeeks = true;
    } else if (weekdayOverflow != null) {
        getParsingFlags(config)._overflowWeekday = true;
    } else {
        temp = dayOfYearFromWeeks(weekYear, week, weekday, dow, doy);
        config._a[YEAR] = temp.year;
        config._dayOfYear = temp.dayOfYear;
    }
}

// constant that refers to the ISO standard
hooks.ISO_8601 = function () {};

// constant that refers to the RFC 2822 form
hooks.RFC_2822 = function () {};

// date from string and format string
function configFromStringAndFormat(config) {
    // TODO: Move this to another part of the creation flow to prevent circular deps
    if (config._f === hooks.ISO_8601) {
        configFromISO(config);
        return;
    }
    if (config._f === hooks.RFC_2822) {
        configFromRFC2822(config);
        return;
    }
    config._a = [];
    getParsingFlags(config).empty = true;

    // This array is used to make a Date, either with `new Date` or `Date.UTC`
    var string = '' + config._i,
        i, parsedInput, tokens, token, skipped,
        stringLength = string.length,
        totalParsedInputLength = 0;

    tokens = expandFormat(config._f, config._locale).match(formattingTokens) || [];

    for (i = 0; i < tokens.length; i++) {
        token = tokens[i];
        parsedInput = (string.match(getParseRegexForToken(token, config)) || [])[0];
        // console.log('token', token, 'parsedInput', parsedInput,
        //         'regex', getParseRegexForToken(token, config));
        if (parsedInput) {
            skipped = string.substr(0, string.indexOf(parsedInput));
            if (skipped.length > 0) {
                getParsingFlags(config).unusedInput.push(skipped);
            }
            string = string.slice(string.indexOf(parsedInput) + parsedInput.length);
            totalParsedInputLength += parsedInput.length;
        }
        // don't parse if it's not a known token
        if (formatTokenFunctions[token]) {
            if (parsedInput) {
                getParsingFlags(config).empty = false;
            }
            else {
                getParsingFlags(config).unusedTokens.push(token);
            }
            addTimeToArrayFromToken(token, parsedInput, config);
        }
        else if (config._strict && !parsedInput) {
            getParsingFlags(config).unusedTokens.push(token);
        }
    }

    // add remaining unparsed input length to the string
    getParsingFlags(config).charsLeftOver = stringLength - totalParsedInputLength;
    if (string.length > 0) {
        getParsingFlags(config).unusedInput.push(string);
    }

    // clear _12h flag if hour is <= 12
    if (config._a[HOUR] <= 12 &&
        getParsingFlags(config).bigHour === true &&
        config._a[HOUR] > 0) {
        getParsingFlags(config).bigHour = undefined;
    }

    getParsingFlags(config).parsedDateParts = config._a.slice(0);
    getParsingFlags(config).meridiem = config._meridiem;
    // handle meridiem
    config._a[HOUR] = meridiemFixWrap(config._locale, config._a[HOUR], config._meridiem);

    configFromArray(config);
    checkOverflow(config);
}


function meridiemFixWrap (locale, hour, meridiem) {
    var isPm;

    if (meridiem == null) {
        // nothing to do
        return hour;
    }
    if (locale.meridiemHour != null) {
        return locale.meridiemHour(hour, meridiem);
    } else if (locale.isPM != null) {
        // Fallback
        isPm = locale.isPM(meridiem);
        if (isPm && hour < 12) {
            hour += 12;
        }
        if (!isPm && hour === 12) {
            hour = 0;
        }
        return hour;
    } else {
        // this is not supposed to happen
        return hour;
    }
}

// date from string and array of format strings
function configFromStringAndArray(config) {
    var tempConfig,
        bestMoment,

        scoreToBeat,
        i,
        currentScore;

    if (config._f.length === 0) {
        getParsingFlags(config).invalidFormat = true;
        config._d = new Date(NaN);
        return;
    }

    for (i = 0; i < config._f.length; i++) {
        currentScore = 0;
        tempConfig = copyConfig({}, config);
        if (config._useUTC != null) {
            tempConfig._useUTC = config._useUTC;
        }
        tempConfig._f = config._f[i];
        configFromStringAndFormat(tempConfig);

        if (!isValid(tempConfig)) {
            continue;
        }

        // if there is any input that was not parsed add a penalty for that format
        currentScore += getParsingFlags(tempConfig).charsLeftOver;

        //or tokens
        currentScore += getParsingFlags(tempConfig).unusedTokens.length * 10;

        getParsingFlags(tempConfig).score = currentScore;

        if (scoreToBeat == null || currentScore < scoreToBeat) {
            scoreToBeat = currentScore;
            bestMoment = tempConfig;
        }
    }

    extend(config, bestMoment || tempConfig);
}

function configFromObject(config) {
    if (config._d) {
        return;
    }

    var i = normalizeObjectUnits(config._i);
    config._a = map([i.year, i.month, i.day || i.date, i.hour, i.minute, i.second, i.millisecond], function (obj) {
        return obj && parseInt(obj, 10);
    });

    configFromArray(config);
}

function createFromConfig (config) {
    var res = new Moment(checkOverflow(prepareConfig(config)));
    if (res._nextDay) {
        // Adding is smart enough around DST
        res.add(1, 'd');
        res._nextDay = undefined;
    }

    return res;
}

function prepareConfig (config) {
    var input = config._i,
        format = config._f;

    config._locale = config._locale || getLocale(config._l);

    if (input === null || (format === undefined && input === '')) {
        return createInvalid({nullInput: true});
    }

    if (typeof input === 'string') {
        config._i = input = config._locale.preparse(input);
    }

    if (isMoment(input)) {
        return new Moment(checkOverflow(input));
    } else if (isDate(input)) {
        config._d = input;
    } else if (isArray(format)) {
        configFromStringAndArray(config);
    } else if (format) {
        configFromStringAndFormat(config);
    }  else {
        configFromInput(config);
    }

    if (!isValid(config)) {
        config._d = null;
    }

    return config;
}

function configFromInput(config) {
    var input = config._i;
    if (isUndefined(input)) {
        config._d = new Date(hooks.now());
    } else if (isDate(input)) {
        config._d = new Date(input.valueOf());
    } else if (typeof input === 'string') {
        configFromString(config);
    } else if (isArray(input)) {
        config._a = map(input.slice(0), function (obj) {
            return parseInt(obj, 10);
        });
        configFromArray(config);
    } else if (isObject(input)) {
        configFromObject(config);
    } else if (isNumber(input)) {
        // from milliseconds
        config._d = new Date(input);
    } else {
        hooks.createFromInputFallback(config);
    }
}

function createLocalOrUTC (input, format, locale, strict, isUTC) {
    var c = {};

    if (locale === true || locale === false) {
        strict = locale;
        locale = undefined;
    }

    if ((isObject(input) && isObjectEmpty(input)) ||
            (isArray(input) && input.length === 0)) {
        input = undefined;
    }
    // object construction must be done this way.
    // https://github.com/moment/moment/issues/1423
    c._isAMomentObject = true;
    c._useUTC = c._isUTC = isUTC;
    c._l = locale;
    c._i = input;
    c._f = format;
    c._strict = strict;

    return createFromConfig(c);
}

function createLocal (input, format, locale, strict) {
    return createLocalOrUTC(input, format, locale, strict, false);
}

var prototypeMin = deprecate(
    'moment().min is deprecated, use moment.max instead. http://momentjs.com/guides/#/warnings/min-max/',
    function () {
        var other = createLocal.apply(null, arguments);
        if (this.isValid() && other.isValid()) {
            return other < this ? this : other;
        } else {
            return createInvalid();
        }
    }
);

var prototypeMax = deprecate(
    'moment().max is deprecated, use moment.min instead. http://momentjs.com/guides/#/warnings/min-max/',
    function () {
        var other = createLocal.apply(null, arguments);
        if (this.isValid() && other.isValid()) {
            return other > this ? this : other;
        } else {
            return createInvalid();
        }
    }
);

// Pick a moment m from moments so that m[fn](other) is true for all
// other. This relies on the function fn to be transitive.
//
// moments should either be an array of moment objects or an array, whose
// first element is an array of moment objects.
function pickBy(fn, moments) {
    var res, i;
    if (moments.length === 1 && isArray(moments[0])) {
        moments = moments[0];
    }
    if (!moments.length) {
        return createLocal();
    }
    res = moments[0];
    for (i = 1; i < moments.length; ++i) {
        if (!moments[i].isValid() || moments[i][fn](res)) {
            res = moments[i];
        }
    }
    return res;
}

// TODO: Use [].sort instead?
function min () {
    var args = [].slice.call(arguments, 0);

    return pickBy('isBefore', args);
}

function max () {
    var args = [].slice.call(arguments, 0);

    return pickBy('isAfter', args);
}

var now = function () {
    return Date.now ? Date.now() : +(new Date());
};

var ordering = ['year', 'quarter', 'month', 'week', 'day', 'hour', 'minute', 'second', 'millisecond'];

function isDurationValid(m) {
    for (var key in m) {
        if (!(ordering.indexOf(key) !== -1 && (m[key] == null || !isNaN(m[key])))) {
            return false;
        }
    }

    var unitHasDecimal = false;
    for (var i = 0; i < ordering.length; ++i) {
        if (m[ordering[i]]) {
            if (unitHasDecimal) {
                return false; // only allow non-integers for smallest unit
            }
            if (parseFloat(m[ordering[i]]) !== toInt(m[ordering[i]])) {
                unitHasDecimal = true;
            }
        }
    }

    return true;
}

function isValid$1() {
    return this._isValid;
}

function createInvalid$1() {
    return createDuration(NaN);
}

function Duration (duration) {
    var normalizedInput = normalizeObjectUnits(duration),
        years = normalizedInput.year || 0,
        quarters = normalizedInput.quarter || 0,
        months = normalizedInput.month || 0,
        weeks = normalizedInput.week || 0,
        days = normalizedInput.day || 0,
        hours = normalizedInput.hour || 0,
        minutes = normalizedInput.minute || 0,
        seconds = normalizedInput.second || 0,
        milliseconds = normalizedInput.millisecond || 0;

    this._isValid = isDurationValid(normalizedInput);

    // representation for dateAddRemove
    this._milliseconds = +milliseconds +
        seconds * 1e3 + // 1000
        minutes * 6e4 + // 1000 * 60
        hours * 1000 * 60 * 60; //using 1000 * 60 * 60 instead of 36e5 to avoid floating point rounding errors https://github.com/moment/moment/issues/2978
    // Because of dateAddRemove treats 24 hours as different from a
    // day when working around DST, we need to store them separately
    this._days = +days +
        weeks * 7;
    // It is impossible translate months into days without knowing
    // which months you are are talking about, so we have to store
    // it separately.
    this._months = +months +
        quarters * 3 +
        years * 12;

    this._data = {};

    this._locale = getLocale();

    this._bubble();
}

function isDuration (obj) {
    return obj instanceof Duration;
}

function absRound (number) {
    if (number < 0) {
        return Math.round(-1 * number) * -1;
    } else {
        return Math.round(number);
    }
}

// FORMATTING

function offset (token, separator) {
    addFormatToken(token, 0, 0, function () {
        var offset = this.utcOffset();
        var sign = '+';
        if (offset < 0) {
            offset = -offset;
            sign = '-';
        }
        return sign + zeroFill(~~(offset / 60), 2) + separator + zeroFill(~~(offset) % 60, 2);
    });
}

offset('Z', ':');
offset('ZZ', '');

// PARSING

addRegexToken('Z',  matchShortOffset);
addRegexToken('ZZ', matchShortOffset);
addParseToken(['Z', 'ZZ'], function (input, array, config) {
    config._useUTC = true;
    config._tzm = offsetFromString(matchShortOffset, input);
});

// HELPERS

// timezone chunker
// '+10:00' > ['10',  '00']
// '-1530'  > ['-15', '30']
var chunkOffset = /([\+\-]|\d\d)/gi;

function offsetFromString(matcher, string) {
    var matches = (string || '').match(matcher);

    if (matches === null) {
        return null;
    }

    var chunk   = matches[matches.length - 1] || [];
    var parts   = (chunk + '').match(chunkOffset) || ['-', 0, 0];
    var minutes = +(parts[1] * 60) + toInt(parts[2]);

    return minutes === 0 ?
      0 :
      parts[0] === '+' ? minutes : -minutes;
}

// Return a moment from input, that is local/utc/zone equivalent to model.
function cloneWithOffset(input, model) {
    var res, diff;
    if (model._isUTC) {
        res = model.clone();
        diff = (isMoment(input) || isDate(input) ? input.valueOf() : createLocal(input).valueOf()) - res.valueOf();
        // Use low-level api, because this fn is low-level api.
        res._d.setTime(res._d.valueOf() + diff);
        hooks.updateOffset(res, false);
        return res;
    } else {
        return createLocal(input).local();
    }
}

function getDateOffset (m) {
    // On Firefox.24 Date#getTimezoneOffset returns a floating point.
    // https://github.com/moment/moment/pull/1871
    return -Math.round(m._d.getTimezoneOffset() / 15) * 15;
}

// HOOKS

// This function will be called whenever a moment is mutated.
// It is intended to keep the offset in sync with the timezone.
hooks.updateOffset = function () {};

// MOMENTS

// keepLocalTime = true means only change the timezone, without
// affecting the local hour. So 5:31:26 +0300 --[utcOffset(2, true)]-->
// 5:31:26 +0200 It is possible that 5:31:26 doesn't exist with offset
// +0200, so we adjust the time as needed, to be valid.
//
// Keeping the time actually adds/subtracts (one hour)
// from the actual represented time. That is why we call updateOffset
// a second time. In case it wants us to change the offset again
// _changeInProgress == true case, then we have to adjust, because
// there is no such time in the given timezone.
function getSetOffset (input, keepLocalTime, keepMinutes) {
    var offset = this._offset || 0,
        localAdjust;
    if (!this.isValid()) {
        return input != null ? this : NaN;
    }
    if (input != null) {
        if (typeof input === 'string') {
            input = offsetFromString(matchShortOffset, input);
            if (input === null) {
                return this;
            }
        } else if (Math.abs(input) < 16 && !keepMinutes) {
            input = input * 60;
        }
        if (!this._isUTC && keepLocalTime) {
            localAdjust = getDateOffset(this);
        }
        this._offset = input;
        this._isUTC = true;
        if (localAdjust != null) {
            this.add(localAdjust, 'm');
        }
        if (offset !== input) {
            if (!keepLocalTime || this._changeInProgress) {
                addSubtract(this, createDuration(input - offset, 'm'), 1, false);
            } else if (!this._changeInProgress) {
                this._changeInProgress = true;
                hooks.updateOffset(this, true);
                this._changeInProgress = null;
            }
        }
        return this;
    } else {
        return this._isUTC ? offset : getDateOffset(this);
    }
}

function getSetZone (input, keepLocalTime) {
    if (input != null) {
        if (typeof input !== 'string') {
            input = -input;
        }

        this.utcOffset(input, keepLocalTime);

        return this;
    } else {
        return -this.utcOffset();
    }
}

function setOffsetToUTC (keepLocalTime) {
    return this.utcOffset(0, keepLocalTime);
}

function setOffsetToLocal (keepLocalTime) {
    if (this._isUTC) {
        this.utcOffset(0, keepLocalTime);
        this._isUTC = false;

        if (keepLocalTime) {
            this.subtract(getDateOffset(this), 'm');
        }
    }
    return this;
}

function setOffsetToParsedOffset () {
    if (this._tzm != null) {
        this.utcOffset(this._tzm, false, true);
    } else if (typeof this._i === 'string') {
        var tZone = offsetFromString(matchOffset, this._i);
        if (tZone != null) {
            this.utcOffset(tZone);
        }
        else {
            this.utcOffset(0, true);
        }
    }
    return this;
}

function hasAlignedHourOffset (input) {
    if (!this.isValid()) {
        return false;
    }
    input = input ? createLocal(input).utcOffset() : 0;

    return (this.utcOffset() - input) % 60 === 0;
}

function isDaylightSavingTime () {
    return (
        this.utcOffset() > this.clone().month(0).utcOffset() ||
        this.utcOffset() > this.clone().month(5).utcOffset()
    );
}

function isDaylightSavingTimeShifted () {
    if (!isUndefined(this._isDSTShifted)) {
        return this._isDSTShifted;
    }

    var c = {};

    copyConfig(c, this);
    c = prepareConfig(c);

    if (c._a) {
        var other = c._isUTC ? createUTC(c._a) : createLocal(c._a);
        this._isDSTShifted = this.isValid() &&
            compareArrays(c._a, other.toArray()) > 0;
    } else {
        this._isDSTShifted = false;
    }

    return this._isDSTShifted;
}

function isLocal () {
    return this.isValid() ? !this._isUTC : false;
}

function isUtcOffset () {
    return this.isValid() ? this._isUTC : false;
}

function isUtc () {
    return this.isValid() ? this._isUTC && this._offset === 0 : false;
}

// ASP.NET json date format regex
var aspNetRegex = /^(\-)?(?:(\d*)[. ])?(\d+)\:(\d+)(?:\:(\d+)(\.\d*)?)?$/;

// from http://docs.closure-library.googlecode.com/git/closure_goog_date_date.js.source.html
// somewhat more in line with 4.4.3.2 2004 spec, but allows decimal anywhere
// and further modified to allow for strings containing both week and day
var isoRegex = /^(-)?P(?:(-?[0-9,.]*)Y)?(?:(-?[0-9,.]*)M)?(?:(-?[0-9,.]*)W)?(?:(-?[0-9,.]*)D)?(?:T(?:(-?[0-9,.]*)H)?(?:(-?[0-9,.]*)M)?(?:(-?[0-9,.]*)S)?)?$/;

function createDuration (input, key) {
    var duration = input,
        // matching against regexp is expensive, do it on demand
        match = null,
        sign,
        ret,
        diffRes;

    if (isDuration(input)) {
        duration = {
            ms : input._milliseconds,
            d  : input._days,
            M  : input._months
        };
    } else if (isNumber(input)) {
        duration = {};
        if (key) {
            duration[key] = input;
        } else {
            duration.milliseconds = input;
        }
    } else if (!!(match = aspNetRegex.exec(input))) {
        sign = (match[1] === '-') ? -1 : 1;
        duration = {
            y  : 0,
            d  : toInt(match[DATE])                         * sign,
            h  : toInt(match[HOUR])                         * sign,
            m  : toInt(match[MINUTE])                       * sign,
            s  : toInt(match[SECOND])                       * sign,
            ms : toInt(absRound(match[MILLISECOND] * 1000)) * sign // the millisecond decimal point is included in the match
        };
    } else if (!!(match = isoRegex.exec(input))) {
        sign = (match[1] === '-') ? -1 : 1;
        duration = {
            y : parseIso(match[2], sign),
            M : parseIso(match[3], sign),
            w : parseIso(match[4], sign),
            d : parseIso(match[5], sign),
            h : parseIso(match[6], sign),
            m : parseIso(match[7], sign),
            s : parseIso(match[8], sign)
        };
    } else if (duration == null) {// checks for null or undefined
        duration = {};
    } else if (typeof duration === 'object' && ('from' in duration || 'to' in duration)) {
        diffRes = momentsDifference(createLocal(duration.from), createLocal(duration.to));

        duration = {};
        duration.ms = diffRes.milliseconds;
        duration.M = diffRes.months;
    }

    ret = new Duration(duration);

    if (isDuration(input) && hasOwnProp(input, '_locale')) {
        ret._locale = input._locale;
    }

    return ret;
}

createDuration.fn = Duration.prototype;
createDuration.invalid = createInvalid$1;

function parseIso (inp, sign) {
    // We'd normally use ~~inp for this, but unfortunately it also
    // converts floats to ints.
    // inp may be undefined, so careful calling replace on it.
    var res = inp && parseFloat(inp.replace(',', '.'));
    // apply sign while we're at it
    return (isNaN(res) ? 0 : res) * sign;
}

function positiveMomentsDifference(base, other) {
    var res = {milliseconds: 0, months: 0};

    res.months = other.month() - base.month() +
        (other.year() - base.year()) * 12;
    if (base.clone().add(res.months, 'M').isAfter(other)) {
        --res.months;
    }

    res.milliseconds = +other - +(base.clone().add(res.months, 'M'));

    return res;
}

function momentsDifference(base, other) {
    var res;
    if (!(base.isValid() && other.isValid())) {
        return {milliseconds: 0, months: 0};
    }

    other = cloneWithOffset(other, base);
    if (base.isBefore(other)) {
        res = positiveMomentsDifference(base, other);
    } else {
        res = positiveMomentsDifference(other, base);
        res.milliseconds = -res.milliseconds;
        res.months = -res.months;
    }

    return res;
}

// TODO: remove 'name' arg after deprecation is removed
function createAdder(direction, name) {
    return function (val, period) {
        var dur, tmp;
        //invert the arguments, but complain about it
        if (period !== null && !isNaN(+period)) {
            deprecateSimple(name, 'moment().' + name  + '(period, number) is deprecated. Please use moment().' + name + '(number, period). ' +
            'See http://momentjs.com/guides/#/warnings/add-inverted-param/ for more info.');
            tmp = val; val = period; period = tmp;
        }

        val = typeof val === 'string' ? +val : val;
        dur = createDuration(val, period);
        addSubtract(this, dur, direction);
        return this;
    };
}

function addSubtract (mom, duration, isAdding, updateOffset) {
    var milliseconds = duration._milliseconds,
        days = absRound(duration._days),
        months = absRound(duration._months);

    if (!mom.isValid()) {
        // No op
        return;
    }

    updateOffset = updateOffset == null ? true : updateOffset;

    if (milliseconds) {
        mom._d.setTime(mom._d.valueOf() + milliseconds * isAdding);
    }
    if (days) {
        set$1(mom, 'Date', get(mom, 'Date') + days * isAdding);
    }
    if (months) {
        setMonth(mom, get(mom, 'Month') + months * isAdding);
    }
    if (updateOffset) {
        hooks.updateOffset(mom, days || months);
    }
}

var add      = createAdder(1, 'add');
var subtract = createAdder(-1, 'subtract');

function getCalendarFormat(myMoment, now) {
    var diff = myMoment.diff(now, 'days', true);
    return diff < -6 ? 'sameElse' :
            diff < -1 ? 'lastWeek' :
            diff < 0 ? 'lastDay' :
            diff < 1 ? 'sameDay' :
            diff < 2 ? 'nextDay' :
            diff < 7 ? 'nextWeek' : 'sameElse';
}

function calendar$1 (time, formats) {
    // We want to compare the start of today, vs this.
    // Getting start-of-today depends on whether we're local/utc/offset or not.
    var now = time || createLocal(),
        sod = cloneWithOffset(now, this).startOf('day'),
        format = hooks.calendarFormat(this, sod) || 'sameElse';

    var output = formats && (isFunction(formats[format]) ? formats[format].call(this, now) : formats[format]);

    return this.format(output || this.localeData().calendar(format, this, createLocal(now)));
}

function clone () {
    return new Moment(this);
}

function isAfter (input, units) {
    var localInput = isMoment(input) ? input : createLocal(input);
    if (!(this.isValid() && localInput.isValid())) {
        return false;
    }
    units = normalizeUnits(!isUndefined(units) ? units : 'millisecond');
    if (units === 'millisecond') {
        return this.valueOf() > localInput.valueOf();
    } else {
        return localInput.valueOf() < this.clone().startOf(units).valueOf();
    }
}

function isBefore (input, units) {
    var localInput = isMoment(input) ? input : createLocal(input);
    if (!(this.isValid() && localInput.isValid())) {
        return false;
    }
    units = normalizeUnits(!isUndefined(units) ? units : 'millisecond');
    if (units === 'millisecond') {
        return this.valueOf() < localInput.valueOf();
    } else {
        return this.clone().endOf(units).valueOf() < localInput.valueOf();
    }
}

function isBetween (from, to, units, inclusivity) {
    inclusivity = inclusivity || '()';
    return (inclusivity[0] === '(' ? this.isAfter(from, units) : !this.isBefore(from, units)) &&
        (inclusivity[1] === ')' ? this.isBefore(to, units) : !this.isAfter(to, units));
}

function isSame (input, units) {
    var localInput = isMoment(input) ? input : createLocal(input),
        inputMs;
    if (!(this.isValid() && localInput.isValid())) {
        return false;
    }
    units = normalizeUnits(units || 'millisecond');
    if (units === 'millisecond') {
        return this.valueOf() === localInput.valueOf();
    } else {
        inputMs = localInput.valueOf();
        return this.clone().startOf(units).valueOf() <= inputMs && inputMs <= this.clone().endOf(units).valueOf();
    }
}

function isSameOrAfter (input, units) {
    return this.isSame(input, units) || this.isAfter(input,units);
}

function isSameOrBefore (input, units) {
    return this.isSame(input, units) || this.isBefore(input,units);
}

function diff (input, units, asFloat) {
    var that,
        zoneDelta,
        delta, output;

    if (!this.isValid()) {
        return NaN;
    }

    that = cloneWithOffset(input, this);

    if (!that.isValid()) {
        return NaN;
    }

    zoneDelta = (that.utcOffset() - this.utcOffset()) * 6e4;

    units = normalizeUnits(units);

    if (units === 'year' || units === 'month' || units === 'quarter') {
        output = monthDiff(this, that);
        if (units === 'quarter') {
            output = output / 3;
        } else if (units === 'year') {
            output = output / 12;
        }
    } else {
        delta = this - that;
        output = units === 'second' ? delta / 1e3 : // 1000
            units === 'minute' ? delta / 6e4 : // 1000 * 60
            units === 'hour' ? delta / 36e5 : // 1000 * 60 * 60
            units === 'day' ? (delta - zoneDelta) / 864e5 : // 1000 * 60 * 60 * 24, negate dst
            units === 'week' ? (delta - zoneDelta) / 6048e5 : // 1000 * 60 * 60 * 24 * 7, negate dst
            delta;
    }
    return asFloat ? output : absFloor(output);
}

function monthDiff (a, b) {
    // difference in months
    var wholeMonthDiff = ((b.year() - a.year()) * 12) + (b.month() - a.month()),
        // b is in (anchor - 1 month, anchor + 1 month)
        anchor = a.clone().add(wholeMonthDiff, 'months'),
        anchor2, adjust;

    if (b - anchor < 0) {
        anchor2 = a.clone().add(wholeMonthDiff - 1, 'months');
        // linear across the month
        adjust = (b - anchor) / (anchor - anchor2);
    } else {
        anchor2 = a.clone().add(wholeMonthDiff + 1, 'months');
        // linear across the month
        adjust = (b - anchor) / (anchor2 - anchor);
    }

    //check for negative zero, return zero if negative zero
    return -(wholeMonthDiff + adjust) || 0;
}

hooks.defaultFormat = 'YYYY-MM-DDTHH:mm:ssZ';
hooks.defaultFormatUtc = 'YYYY-MM-DDTHH:mm:ss[Z]';

function toString () {
    return this.clone().locale('en').format('ddd MMM DD YYYY HH:mm:ss [GMT]ZZ');
}

function toISOString() {
    if (!this.isValid()) {
        return null;
    }
    var m = this.clone().utc();
    if (m.year() < 0 || m.year() > 9999) {
        return formatMoment(m, 'YYYYYY-MM-DD[T]HH:mm:ss.SSS[Z]');
    }
    if (isFunction(Date.prototype.toISOString)) {
        // native implementation is ~50x faster, use it when we can
        return this.toDate().toISOString();
    }
    return formatMoment(m, 'YYYY-MM-DD[T]HH:mm:ss.SSS[Z]');
}

/**
 * Return a human readable representation of a moment that can
 * also be evaluated to get a new moment which is the same
 *
 * @link https://nodejs.org/dist/latest/docs/api/util.html#util_custom_inspect_function_on_objects
 */
function inspect () {
    if (!this.isValid()) {
        return 'moment.invalid(/* ' + this._i + ' */)';
    }
    var func = 'moment';
    var zone = '';
    if (!this.isLocal()) {
        func = this.utcOffset() === 0 ? 'moment.utc' : 'moment.parseZone';
        zone = 'Z';
    }
    var prefix = '[' + func + '("]';
    var year = (0 <= this.year() && this.year() <= 9999) ? 'YYYY' : 'YYYYYY';
    var datetime = '-MM-DD[T]HH:mm:ss.SSS';
    var suffix = zone + '[")]';

    return this.format(prefix + year + datetime + suffix);
}

function format (inputString) {
    if (!inputString) {
        inputString = this.isUtc() ? hooks.defaultFormatUtc : hooks.defaultFormat;
    }
    var output = formatMoment(this, inputString);
    return this.localeData().postformat(output);
}

function from (time, withoutSuffix) {
    if (this.isValid() &&
            ((isMoment(time) && time.isValid()) ||
             createLocal(time).isValid())) {
        return createDuration({to: this, from: time}).locale(this.locale()).humanize(!withoutSuffix);
    } else {
        return this.localeData().invalidDate();
    }
}

function fromNow (withoutSuffix) {
    return this.from(createLocal(), withoutSuffix);
}

function to (time, withoutSuffix) {
    if (this.isValid() &&
            ((isMoment(time) && time.isValid()) ||
             createLocal(time).isValid())) {
        return createDuration({from: this, to: time}).locale(this.locale()).humanize(!withoutSuffix);
    } else {
        return this.localeData().invalidDate();
    }
}

function toNow (withoutSuffix) {
    return this.to(createLocal(), withoutSuffix);
}

// If passed a locale key, it will set the locale for this
// instance.  Otherwise, it will return the locale configuration
// variables for this instance.
function locale (key) {
    var newLocaleData;

    if (key === undefined) {
        return this._locale._abbr;
    } else {
        newLocaleData = getLocale(key);
        if (newLocaleData != null) {
            this._locale = newLocaleData;
        }
        return this;
    }
}

var lang = deprecate(
    'moment().lang() is deprecated. Instead, use moment().localeData() to get the language configuration. Use moment().locale() to change languages.',
    function (key) {
        if (key === undefined) {
            return this.localeData();
        } else {
            return this.locale(key);
        }
    }
);

function localeData () {
    return this._locale;
}

function startOf (units) {
    units = normalizeUnits(units);
    // the following switch intentionally omits break keywords
    // to utilize falling through the cases.
    switch (units) {
        case 'year':
            this.month(0);
            /* falls through */
        case 'quarter':
        case 'month':
            this.date(1);
            /* falls through */
        case 'week':
        case 'isoWeek':
        case 'day':
        case 'date':
            this.hours(0);
            /* falls through */
        case 'hour':
            this.minutes(0);
            /* falls through */
        case 'minute':
            this.seconds(0);
            /* falls through */
        case 'second':
            this.milliseconds(0);
    }

    // weeks are a special case
    if (units === 'week') {
        this.weekday(0);
    }
    if (units === 'isoWeek') {
        this.isoWeekday(1);
    }

    // quarters are also special
    if (units === 'quarter') {
        this.month(Math.floor(this.month() / 3) * 3);
    }

    return this;
}

function endOf (units) {
    units = normalizeUnits(units);
    if (units === undefined || units === 'millisecond') {
        return this;
    }

    // 'date' is an alias for 'day', so it should be considered as such.
    if (units === 'date') {
        units = 'day';
    }

    return this.startOf(units).add(1, (units === 'isoWeek' ? 'week' : units)).subtract(1, 'ms');
}

function valueOf () {
    return this._d.valueOf() - ((this._offset || 0) * 60000);
}

function unix () {
    return Math.floor(this.valueOf() / 1000);
}

function toDate () {
    return new Date(this.valueOf());
}

function toArray () {
    var m = this;
    return [m.year(), m.month(), m.date(), m.hour(), m.minute(), m.second(), m.millisecond()];
}

function toObject () {
    var m = this;
    return {
        years: m.year(),
        months: m.month(),
        date: m.date(),
        hours: m.hours(),
        minutes: m.minutes(),
        seconds: m.seconds(),
        milliseconds: m.milliseconds()
    };
}

function toJSON () {
    // new Date(NaN).toJSON() === null
    return this.isValid() ? this.toISOString() : null;
}

function isValid$2 () {
    return isValid(this);
}

function parsingFlags () {
    return extend({}, getParsingFlags(this));
}

function invalidAt () {
    return getParsingFlags(this).overflow;
}

function creationData() {
    return {
        input: this._i,
        format: this._f,
        locale: this._locale,
        isUTC: this._isUTC,
        strict: this._strict
    };
}

// FORMATTING

addFormatToken(0, ['gg', 2], 0, function () {
    return this.weekYear() % 100;
});

addFormatToken(0, ['GG', 2], 0, function () {
    return this.isoWeekYear() % 100;
});

function addWeekYearFormatToken (token, getter) {
    addFormatToken(0, [token, token.length], 0, getter);
}

addWeekYearFormatToken('gggg',     'weekYear');
addWeekYearFormatToken('ggggg',    'weekYear');
addWeekYearFormatToken('GGGG',  'isoWeekYear');
addWeekYearFormatToken('GGGGG', 'isoWeekYear');

// ALIASES

addUnitAlias('weekYear', 'gg');
addUnitAlias('isoWeekYear', 'GG');

// PRIORITY

addUnitPriority('weekYear', 1);
addUnitPriority('isoWeekYear', 1);


// PARSING

addRegexToken('G',      matchSigned);
addRegexToken('g',      matchSigned);
addRegexToken('GG',     match1to2, match2);
addRegexToken('gg',     match1to2, match2);
addRegexToken('GGGG',   match1to4, match4);
addRegexToken('gggg',   match1to4, match4);
addRegexToken('GGGGG',  match1to6, match6);
addRegexToken('ggggg',  match1to6, match6);

addWeekParseToken(['gggg', 'ggggg', 'GGGG', 'GGGGG'], function (input, week, config, token) {
    week[token.substr(0, 2)] = toInt(input);
});

addWeekParseToken(['gg', 'GG'], function (input, week, config, token) {
    week[token] = hooks.parseTwoDigitYear(input);
});

// MOMENTS

function getSetWeekYear (input) {
    return getSetWeekYearHelper.call(this,
            input,
            this.week(),
            this.weekday(),
            this.localeData()._week.dow,
            this.localeData()._week.doy);
}

function getSetISOWeekYear (input) {
    return getSetWeekYearHelper.call(this,
            input, this.isoWeek(), this.isoWeekday(), 1, 4);
}

function getISOWeeksInYear () {
    return weeksInYear(this.year(), 1, 4);
}

function getWeeksInYear () {
    var weekInfo = this.localeData()._week;
    return weeksInYear(this.year(), weekInfo.dow, weekInfo.doy);
}

function getSetWeekYearHelper(input, week, weekday, dow, doy) {
    var weeksTarget;
    if (input == null) {
        return weekOfYear(this, dow, doy).year;
    } else {
        weeksTarget = weeksInYear(input, dow, doy);
        if (week > weeksTarget) {
            week = weeksTarget;
        }
        return setWeekAll.call(this, input, week, weekday, dow, doy);
    }
}

function setWeekAll(weekYear, week, weekday, dow, doy) {
    var dayOfYearData = dayOfYearFromWeeks(weekYear, week, weekday, dow, doy),
        date = createUTCDate(dayOfYearData.year, 0, dayOfYearData.dayOfYear);

    this.year(date.getUTCFullYear());
    this.month(date.getUTCMonth());
    this.date(date.getUTCDate());
    return this;
}

// FORMATTING

addFormatToken('Q', 0, 'Qo', 'quarter');

// ALIASES

addUnitAlias('quarter', 'Q');

// PRIORITY

addUnitPriority('quarter', 7);

// PARSING

addRegexToken('Q', match1);
addParseToken('Q', function (input, array) {
    array[MONTH] = (toInt(input) - 1) * 3;
});

// MOMENTS

function getSetQuarter (input) {
    return input == null ? Math.ceil((this.month() + 1) / 3) : this.month((input - 1) * 3 + this.month() % 3);
}

// FORMATTING

addFormatToken('D', ['DD', 2], 'Do', 'date');

// ALIASES

addUnitAlias('date', 'D');

// PRIOROITY
addUnitPriority('date', 9);

// PARSING

addRegexToken('D',  match1to2);
addRegexToken('DD', match1to2, match2);
addRegexToken('Do', function (isStrict, locale) {
    // TODO: Remove "ordinalParse" fallback in next major release.
    return isStrict ?
      (locale._dayOfMonthOrdinalParse || locale._ordinalParse) :
      locale._dayOfMonthOrdinalParseLenient;
});

addParseToken(['D', 'DD'], DATE);
addParseToken('Do', function (input, array) {
    array[DATE] = toInt(input.match(match1to2)[0], 10);
});

// MOMENTS

var getSetDayOfMonth = makeGetSet('Date', true);

// FORMATTING

addFormatToken('DDD', ['DDDD', 3], 'DDDo', 'dayOfYear');

// ALIASES

addUnitAlias('dayOfYear', 'DDD');

// PRIORITY
addUnitPriority('dayOfYear', 4);

// PARSING

addRegexToken('DDD',  match1to3);
addRegexToken('DDDD', match3);
addParseToken(['DDD', 'DDDD'], function (input, array, config) {
    config._dayOfYear = toInt(input);
});

// HELPERS

// MOMENTS

function getSetDayOfYear (input) {
    var dayOfYear = Math.round((this.clone().startOf('day') - this.clone().startOf('year')) / 864e5) + 1;
    return input == null ? dayOfYear : this.add((input - dayOfYear), 'd');
}

// FORMATTING

addFormatToken('m', ['mm', 2], 0, 'minute');

// ALIASES

addUnitAlias('minute', 'm');

// PRIORITY

addUnitPriority('minute', 14);

// PARSING

addRegexToken('m',  match1to2);
addRegexToken('mm', match1to2, match2);
addParseToken(['m', 'mm'], MINUTE);

// MOMENTS

var getSetMinute = makeGetSet('Minutes', false);

// FORMATTING

addFormatToken('s', ['ss', 2], 0, 'second');

// ALIASES

addUnitAlias('second', 's');

// PRIORITY

addUnitPriority('second', 15);

// PARSING

addRegexToken('s',  match1to2);
addRegexToken('ss', match1to2, match2);
addParseToken(['s', 'ss'], SECOND);

// MOMENTS

var getSetSecond = makeGetSet('Seconds', false);

// FORMATTING

addFormatToken('S', 0, 0, function () {
    return ~~(this.millisecond() / 100);
});

addFormatToken(0, ['SS', 2], 0, function () {
    return ~~(this.millisecond() / 10);
});

addFormatToken(0, ['SSS', 3], 0, 'millisecond');
addFormatToken(0, ['SSSS', 4], 0, function () {
    return this.millisecond() * 10;
});
addFormatToken(0, ['SSSSS', 5], 0, function () {
    return this.millisecond() * 100;
});
addFormatToken(0, ['SSSSSS', 6], 0, function () {
    return this.millisecond() * 1000;
});
addFormatToken(0, ['SSSSSSS', 7], 0, function () {
    return this.millisecond() * 10000;
});
addFormatToken(0, ['SSSSSSSS', 8], 0, function () {
    return this.millisecond() * 100000;
});
addFormatToken(0, ['SSSSSSSSS', 9], 0, function () {
    return this.millisecond() * 1000000;
});


// ALIASES

addUnitAlias('millisecond', 'ms');

// PRIORITY

addUnitPriority('millisecond', 16);

// PARSING

addRegexToken('S',    match1to3, match1);
addRegexToken('SS',   match1to3, match2);
addRegexToken('SSS',  match1to3, match3);

var token;
for (token = 'SSSS'; token.length <= 9; token += 'S') {
    addRegexToken(token, matchUnsigned);
}

function parseMs(input, array) {
    array[MILLISECOND] = toInt(('0.' + input) * 1000);
}

for (token = 'S'; token.length <= 9; token += 'S') {
    addParseToken(token, parseMs);
}
// MOMENTS

var getSetMillisecond = makeGetSet('Milliseconds', false);

// FORMATTING

addFormatToken('z',  0, 0, 'zoneAbbr');
addFormatToken('zz', 0, 0, 'zoneName');

// MOMENTS

function getZoneAbbr () {
    return this._isUTC ? 'UTC' : '';
}

function getZoneName () {
    return this._isUTC ? 'Coordinated Universal Time' : '';
}

var proto = Moment.prototype;

proto.add               = add;
proto.calendar          = calendar$1;
proto.clone             = clone;
proto.diff              = diff;
proto.endOf             = endOf;
proto.format            = format;
proto.from              = from;
proto.fromNow           = fromNow;
proto.to                = to;
proto.toNow             = toNow;
proto.get               = stringGet;
proto.invalidAt         = invalidAt;
proto.isAfter           = isAfter;
proto.isBefore          = isBefore;
proto.isBetween         = isBetween;
proto.isSame            = isSame;
proto.isSameOrAfter     = isSameOrAfter;
proto.isSameOrBefore    = isSameOrBefore;
proto.isValid           = isValid$2;
proto.lang              = lang;
proto.locale            = locale;
proto.localeData        = localeData;
proto.max               = prototypeMax;
proto.min               = prototypeMin;
proto.parsingFlags      = parsingFlags;
proto.set               = stringSet;
proto.startOf           = startOf;
proto.subtract          = subtract;
proto.toArray           = toArray;
proto.toObject          = toObject;
proto.toDate            = toDate;
proto.toISOString       = toISOString;
proto.inspect           = inspect;
proto.toJSON            = toJSON;
proto.toString          = toString;
proto.unix              = unix;
proto.valueOf           = valueOf;
proto.creationData      = creationData;

// Year
proto.year       = getSetYear;
proto.isLeapYear = getIsLeapYear;

// Week Year
proto.weekYear    = getSetWeekYear;
proto.isoWeekYear = getSetISOWeekYear;

// Quarter
proto.quarter = proto.quarters = getSetQuarter;

// Month
proto.month       = getSetMonth;
proto.daysInMonth = getDaysInMonth;

// Week
proto.week           = proto.weeks        = getSetWeek;
proto.isoWeek        = proto.isoWeeks     = getSetISOWeek;
proto.weeksInYear    = getWeeksInYear;
proto.isoWeeksInYear = getISOWeeksInYear;

// Day
proto.date       = getSetDayOfMonth;
proto.day        = proto.days             = getSetDayOfWeek;
proto.weekday    = getSetLocaleDayOfWeek;
proto.isoWeekday = getSetISODayOfWeek;
proto.dayOfYear  = getSetDayOfYear;

// Hour
proto.hour = proto.hours = getSetHour;

// Minute
proto.minute = proto.minutes = getSetMinute;

// Second
proto.second = proto.seconds = getSetSecond;

// Millisecond
proto.millisecond = proto.milliseconds = getSetMillisecond;

// Offset
proto.utcOffset            = getSetOffset;
proto.utc                  = setOffsetToUTC;
proto.local                = setOffsetToLocal;
proto.parseZone            = setOffsetToParsedOffset;
proto.hasAlignedHourOffset = hasAlignedHourOffset;
proto.isDST                = isDaylightSavingTime;
proto.isLocal              = isLocal;
proto.isUtcOffset          = isUtcOffset;
proto.isUtc                = isUtc;
proto.isUTC                = isUtc;

// Timezone
proto.zoneAbbr = getZoneAbbr;
proto.zoneName = getZoneName;

// Deprecations
proto.dates  = deprecate('dates accessor is deprecated. Use date instead.', getSetDayOfMonth);
proto.months = deprecate('months accessor is deprecated. Use month instead', getSetMonth);
proto.years  = deprecate('years accessor is deprecated. Use year instead', getSetYear);
proto.zone   = deprecate('moment().zone is deprecated, use moment().utcOffset instead. http://momentjs.com/guides/#/warnings/zone/', getSetZone);
proto.isDSTShifted = deprecate('isDSTShifted is deprecated. See http://momentjs.com/guides/#/warnings/dst-shifted/ for more information', isDaylightSavingTimeShifted);

function createUnix (input) {
    return createLocal(input * 1000);
}

function createInZone () {
    return createLocal.apply(null, arguments).parseZone();
}

function preParsePostFormat (string) {
    return string;
}

var proto$1 = Locale.prototype;

proto$1.calendar        = calendar;
proto$1.longDateFormat  = longDateFormat;
proto$1.invalidDate     = invalidDate;
proto$1.ordinal         = ordinal;
proto$1.preparse        = preParsePostFormat;
proto$1.postformat      = preParsePostFormat;
proto$1.relativeTime    = relativeTime;
proto$1.pastFuture      = pastFuture;
proto$1.set             = set;

// Month
proto$1.months            =        localeMonths;
proto$1.monthsShort       =        localeMonthsShort;
proto$1.monthsParse       =        localeMonthsParse;
proto$1.monthsRegex       = monthsRegex;
proto$1.monthsShortRegex  = monthsShortRegex;

// Week
proto$1.week = localeWeek;
proto$1.firstDayOfYear = localeFirstDayOfYear;
proto$1.firstDayOfWeek = localeFirstDayOfWeek;

// Day of Week
proto$1.weekdays       =        localeWeekdays;
proto$1.weekdaysMin    =        localeWeekdaysMin;
proto$1.weekdaysShort  =        localeWeekdaysShort;
proto$1.weekdaysParse  =        localeWeekdaysParse;

proto$1.weekdaysRegex       =        weekdaysRegex;
proto$1.weekdaysShortRegex  =        weekdaysShortRegex;
proto$1.weekdaysMinRegex    =        weekdaysMinRegex;

// Hours
proto$1.isPM = localeIsPM;
proto$1.meridiem = localeMeridiem;

function get$1 (format, index, field, setter) {
    var locale = getLocale();
    var utc = createUTC().set(setter, index);
    return locale[field](utc, format);
}

function listMonthsImpl (format, index, field) {
    if (isNumber(format)) {
        index = format;
        format = undefined;
    }

    format = format || '';

    if (index != null) {
        return get$1(format, index, field, 'month');
    }

    var i;
    var out = [];
    for (i = 0; i < 12; i++) {
        out[i] = get$1(format, i, field, 'month');
    }
    return out;
}

// ()
// (5)
// (fmt, 5)
// (fmt)
// (true)
// (true, 5)
// (true, fmt, 5)
// (true, fmt)
function listWeekdaysImpl (localeSorted, format, index, field) {
    if (typeof localeSorted === 'boolean') {
        if (isNumber(format)) {
            index = format;
            format = undefined;
        }

        format = format || '';
    } else {
        format = localeSorted;
        index = format;
        localeSorted = false;

        if (isNumber(format)) {
            index = format;
            format = undefined;
        }

        format = format || '';
    }

    var locale = getLocale(),
        shift = localeSorted ? locale._week.dow : 0;

    if (index != null) {
        return get$1(format, (index + shift) % 7, field, 'day');
    }

    var i;
    var out = [];
    for (i = 0; i < 7; i++) {
        out[i] = get$1(format, (i + shift) % 7, field, 'day');
    }
    return out;
}

function listMonths (format, index) {
    return listMonthsImpl(format, index, 'months');
}

function listMonthsShort (format, index) {
    return listMonthsImpl(format, index, 'monthsShort');
}

function listWeekdays (localeSorted, format, index) {
    return listWeekdaysImpl(localeSorted, format, index, 'weekdays');
}

function listWeekdaysShort (localeSorted, format, index) {
    return listWeekdaysImpl(localeSorted, format, index, 'weekdaysShort');
}

function listWeekdaysMin (localeSorted, format, index) {
    return listWeekdaysImpl(localeSorted, format, index, 'weekdaysMin');
}

getSetGlobalLocale('en', {
    dayOfMonthOrdinalParse: /\d{1,2}(th|st|nd|rd)/,
    ordinal : function (number) {
        var b = number % 10,
            output = (toInt(number % 100 / 10) === 1) ? 'th' :
            (b === 1) ? 'st' :
            (b === 2) ? 'nd' :
            (b === 3) ? 'rd' : 'th';
        return number + output;
    }
});

// Side effect imports
hooks.lang = deprecate('moment.lang is deprecated. Use moment.locale instead.', getSetGlobalLocale);
hooks.langData = deprecate('moment.langData is deprecated. Use moment.localeData instead.', getLocale);

var mathAbs = Math.abs;

function abs () {
    var data           = this._data;

    this._milliseconds = mathAbs(this._milliseconds);
    this._days         = mathAbs(this._days);
    this._months       = mathAbs(this._months);

    data.milliseconds  = mathAbs(data.milliseconds);
    data.seconds       = mathAbs(data.seconds);
    data.minutes       = mathAbs(data.minutes);
    data.hours         = mathAbs(data.hours);
    data.months        = mathAbs(data.months);
    data.years         = mathAbs(data.years);

    return this;
}

function addSubtract$1 (duration, input, value, direction) {
    var other = createDuration(input, value);

    duration._milliseconds += direction * other._milliseconds;
    duration._days         += direction * other._days;
    duration._months       += direction * other._months;

    return duration._bubble();
}

// supports only 2.0-style add(1, 's') or add(duration)
function add$1 (input, value) {
    return addSubtract$1(this, input, value, 1);
}

// supports only 2.0-style subtract(1, 's') or subtract(duration)
function subtract$1 (input, value) {
    return addSubtract$1(this, input, value, -1);
}

function absCeil (number) {
    if (number < 0) {
        return Math.floor(number);
    } else {
        return Math.ceil(number);
    }
}

function bubble () {
    var milliseconds = this._milliseconds;
    var days         = this._days;
    var months       = this._months;
    var data         = this._data;
    var seconds, minutes, hours, years, monthsFromDays;

    // if we have a mix of positive and negative values, bubble down first
    // check: https://github.com/moment/moment/issues/2166
    if (!((milliseconds >= 0 && days >= 0 && months >= 0) ||
            (milliseconds <= 0 && days <= 0 && months <= 0))) {
        milliseconds += absCeil(monthsToDays(months) + days) * 864e5;
        days = 0;
        months = 0;
    }

    // The following code bubbles up values, see the tests for
    // examples of what that means.
    data.milliseconds = milliseconds % 1000;

    seconds           = absFloor(milliseconds / 1000);
    data.seconds      = seconds % 60;

    minutes           = absFloor(seconds / 60);
    data.minutes      = minutes % 60;

    hours             = absFloor(minutes / 60);
    data.hours        = hours % 24;

    days += absFloor(hours / 24);

    // convert days to months
    monthsFromDays = absFloor(daysToMonths(days));
    months += monthsFromDays;
    days -= absCeil(monthsToDays(monthsFromDays));

    // 12 months -> 1 year
    years = absFloor(months / 12);
    months %= 12;

    data.days   = days;
    data.months = months;
    data.years  = years;

    return this;
}

function daysToMonths (days) {
    // 400 years have 146097 days (taking into account leap year rules)
    // 400 years have 12 months === 4800
    return days * 4800 / 146097;
}

function monthsToDays (months) {
    // the reverse of daysToMonths
    return months * 146097 / 4800;
}

function as (units) {
    if (!this.isValid()) {
        return NaN;
    }
    var days;
    var months;
    var milliseconds = this._milliseconds;

    units = normalizeUnits(units);

    if (units === 'month' || units === 'year') {
        days   = this._days   + milliseconds / 864e5;
        months = this._months + daysToMonths(days);
        return units === 'month' ? months : months / 12;
    } else {
        // handle milliseconds separately because of floating point math errors (issue #1867)
        days = this._days + Math.round(monthsToDays(this._months));
        switch (units) {
            case 'week'   : return days / 7     + milliseconds / 6048e5;
            case 'day'    : return days         + milliseconds / 864e5;
            case 'hour'   : return days * 24    + milliseconds / 36e5;
            case 'minute' : return days * 1440  + milliseconds / 6e4;
            case 'second' : return days * 86400 + milliseconds / 1000;
            // Math.floor prevents floating point math errors here
            case 'millisecond': return Math.floor(days * 864e5) + milliseconds;
            default: throw new Error('Unknown unit ' + units);
        }
    }
}

// TODO: Use this.as('ms')?
function valueOf$1 () {
    if (!this.isValid()) {
        return NaN;
    }
    return (
        this._milliseconds +
        this._days * 864e5 +
        (this._months % 12) * 2592e6 +
        toInt(this._months / 12) * 31536e6
    );
}

function makeAs (alias) {
    return function () {
        return this.as(alias);
    };
}

var asMilliseconds = makeAs('ms');
var asSeconds      = makeAs('s');
var asMinutes      = makeAs('m');
var asHours        = makeAs('h');
var asDays         = makeAs('d');
var asWeeks        = makeAs('w');
var asMonths       = makeAs('M');
var asYears        = makeAs('y');

function get$2 (units) {
    units = normalizeUnits(units);
    return this.isValid() ? this[units + 's']() : NaN;
}

function makeGetter(name) {
    return function () {
        return this.isValid() ? this._data[name] : NaN;
    };
}

var milliseconds = makeGetter('milliseconds');
var seconds      = makeGetter('seconds');
var minutes      = makeGetter('minutes');
var hours        = makeGetter('hours');
var days         = makeGetter('days');
var months       = makeGetter('months');
var years        = makeGetter('years');

function weeks () {
    return absFloor(this.days() / 7);
}

var round = Math.round;
var thresholds = {
    ss: 44,         // a few seconds to seconds
    s : 45,         // seconds to minute
    m : 45,         // minutes to hour
    h : 22,         // hours to day
    d : 26,         // days to month
    M : 11          // months to year
};

// helper function for moment.fn.from, moment.fn.fromNow, and moment.duration.fn.humanize
function substituteTimeAgo(string, number, withoutSuffix, isFuture, locale) {
    return locale.relativeTime(number || 1, !!withoutSuffix, string, isFuture);
}

function relativeTime$1 (posNegDuration, withoutSuffix, locale) {
    var duration = createDuration(posNegDuration).abs();
    var seconds  = round(duration.as('s'));
    var minutes  = round(duration.as('m'));
    var hours    = round(duration.as('h'));
    var days     = round(duration.as('d'));
    var months   = round(duration.as('M'));
    var years    = round(duration.as('y'));

    var a = seconds <= thresholds.ss && ['s', seconds]  ||
            seconds < thresholds.s   && ['ss', seconds] ||
            minutes <= 1             && ['m']           ||
            minutes < thresholds.m   && ['mm', minutes] ||
            hours   <= 1             && ['h']           ||
            hours   < thresholds.h   && ['hh', hours]   ||
            days    <= 1             && ['d']           ||
            days    < thresholds.d   && ['dd', days]    ||
            months  <= 1             && ['M']           ||
            months  < thresholds.M   && ['MM', months]  ||
            years   <= 1             && ['y']           || ['yy', years];

    a[2] = withoutSuffix;
    a[3] = +posNegDuration > 0;
    a[4] = locale;
    return substituteTimeAgo.apply(null, a);
}

// This function allows you to set the rounding function for relative time strings
function getSetRelativeTimeRounding (roundingFunction) {
    if (roundingFunction === undefined) {
        return round;
    }
    if (typeof(roundingFunction) === 'function') {
        round = roundingFunction;
        return true;
    }
    return false;
}

// This function allows you to set a threshold for relative time strings
function getSetRelativeTimeThreshold (threshold, limit) {
    if (thresholds[threshold] === undefined) {
        return false;
    }
    if (limit === undefined) {
        return thresholds[threshold];
    }
    thresholds[threshold] = limit;
    if (threshold === 's') {
        thresholds.ss = limit - 1;
    }
    return true;
}

function humanize (withSuffix) {
    if (!this.isValid()) {
        return this.localeData().invalidDate();
    }

    var locale = this.localeData();
    var output = relativeTime$1(this, !withSuffix, locale);

    if (withSuffix) {
        output = locale.pastFuture(+this, output);
    }

    return locale.postformat(output);
}

var abs$1 = Math.abs;

function toISOString$1() {
    // for ISO strings we do not use the normal bubbling rules:
    //  * milliseconds bubble up until they become hours
    //  * days do not bubble at all
    //  * months bubble up until they become years
    // This is because there is no context-free conversion between hours and days
    // (think of clock changes)
    // and also not between days and months (28-31 days per month)
    if (!this.isValid()) {
        return this.localeData().invalidDate();
    }

    var seconds = abs$1(this._milliseconds) / 1000;
    var days         = abs$1(this._days);
    var months       = abs$1(this._months);
    var minutes, hours, years;

    // 3600 seconds -> 60 minutes -> 1 hour
    minutes           = absFloor(seconds / 60);
    hours             = absFloor(minutes / 60);
    seconds %= 60;
    minutes %= 60;

    // 12 months -> 1 year
    years  = absFloor(months / 12);
    months %= 12;


    // inspired by https://github.com/dordille/moment-isoduration/blob/master/moment.isoduration.js
    var Y = years;
    var M = months;
    var D = days;
    var h = hours;
    var m = minutes;
    var s = seconds;
    var total = this.asSeconds();

    if (!total) {
        // this is the same as C#'s (Noda) and python (isodate)...
        // but not other JS (goog.date)
        return 'P0D';
    }

    return (total < 0 ? '-' : '') +
        'P' +
        (Y ? Y + 'Y' : '') +
        (M ? M + 'M' : '') +
        (D ? D + 'D' : '') +
        ((h || m || s) ? 'T' : '') +
        (h ? h + 'H' : '') +
        (m ? m + 'M' : '') +
        (s ? s + 'S' : '');
}

var proto$2 = Duration.prototype;

proto$2.isValid        = isValid$1;
proto$2.abs            = abs;
proto$2.add            = add$1;
proto$2.subtract       = subtract$1;
proto$2.as             = as;
proto$2.asMilliseconds = asMilliseconds;
proto$2.asSeconds      = asSeconds;
proto$2.asMinutes      = asMinutes;
proto$2.asHours        = asHours;
proto$2.asDays         = asDays;
proto$2.asWeeks        = asWeeks;
proto$2.asMonths       = asMonths;
proto$2.asYears        = asYears;
proto$2.valueOf        = valueOf$1;
proto$2._bubble        = bubble;
proto$2.get            = get$2;
proto$2.milliseconds   = milliseconds;
proto$2.seconds        = seconds;
proto$2.minutes        = minutes;
proto$2.hours          = hours;
proto$2.days           = days;
proto$2.weeks          = weeks;
proto$2.months         = months;
proto$2.years          = years;
proto$2.humanize       = humanize;
proto$2.toISOString    = toISOString$1;
proto$2.toString       = toISOString$1;
proto$2.toJSON         = toISOString$1;
proto$2.locale         = locale;
proto$2.localeData     = localeData;

// Deprecations
proto$2.toIsoString = deprecate('toIsoString() is deprecated. Please use toISOString() instead (notice the capitals)', toISOString$1);
proto$2.lang = lang;

// Side effect imports

// FORMATTING

addFormatToken('X', 0, 0, 'unix');
addFormatToken('x', 0, 0, 'valueOf');

// PARSING

addRegexToken('x', matchSigned);
addRegexToken('X', matchTimestamp);
addParseToken('X', function (input, array, config) {
    config._d = new Date(parseFloat(input, 10) * 1000);
});
addParseToken('x', function (input, array, config) {
    config._d = new Date(toInt(input));
});

// Side effect imports


hooks.version = '2.18.1';

setHookCallback(createLocal);

hooks.fn                    = proto;
hooks.min                   = min;
hooks.max                   = max;
hooks.now                   = now;
hooks.utc                   = createUTC;
hooks.unix                  = createUnix;
hooks.months                = listMonths;
hooks.isDate                = isDate;
hooks.locale                = getSetGlobalLocale;
hooks.invalid               = createInvalid;
hooks.duration              = createDuration;
hooks.isMoment              = isMoment;
hooks.weekdays              = listWeekdays;
hooks.parseZone             = createInZone;
hooks.localeData            = getLocale;
hooks.isDuration            = isDuration;
hooks.monthsShort           = listMonthsShort;
hooks.weekdaysMin           = listWeekdaysMin;
hooks.defineLocale          = defineLocale;
hooks.updateLocale          = updateLocale;
hooks.locales               = listLocales;
hooks.weekdaysShort         = listWeekdaysShort;
hooks.normalizeUnits        = normalizeUnits;
hooks.relativeTimeRounding = getSetRelativeTimeRounding;
hooks.relativeTimeThreshold = getSetRelativeTimeThreshold;
hooks.calendarFormat        = getCalendarFormat;
hooks.prototype             = proto;

return hooks;

})));

define('moment', ['moment/moment'], function (main) { return main; });

//! moment.js locale configuration
//! locale : Afrikaans [af]
//! author : Werner Mollentze : https://github.com/wernerm

;(function (global, factory) {
   typeof exports === 'object' && typeof module !== 'undefined'
       && typeof require === 'function' ? factory(require('../moment')) :
   typeof define === 'function' && define.amd ? define('moment/locale/af',['../moment'], factory) :
   factory(global.moment)
}(this, (function (moment) { 'use strict';


var af = moment.defineLocale('af', {
    months : 'Januarie_Februarie_Maart_April_Mei_Junie_Julie_Augustus_September_Oktober_November_Desember'.split('_'),
    monthsShort : 'Jan_Feb_Mrt_Apr_Mei_Jun_Jul_Aug_Sep_Okt_Nov_Des'.split('_'),
    weekdays : 'Sondag_Maandag_Dinsdag_Woensdag_Donderdag_Vrydag_Saterdag'.split('_'),
    weekdaysShort : 'Son_Maa_Din_Woe_Don_Vry_Sat'.split('_'),
    weekdaysMin : 'So_Ma_Di_Wo_Do_Vr_Sa'.split('_'),
    meridiemParse: /vm|nm/i,
    isPM : function (input) {
        return /^nm$/i.test(input);
    },
    meridiem : function (hours, minutes, isLower) {
        if (hours < 12) {
            return isLower ? 'vm' : 'VM';
        } else {
            return isLower ? 'nm' : 'NM';
        }
    },
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'DD/MM/YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY HH:mm',
        LLLL : 'dddd, D MMMM YYYY HH:mm'
    },
    calendar : {
        sameDay : '[Vandag om] LT',
        nextDay : '[Môre om] LT',
        nextWeek : 'dddd [om] LT',
        lastDay : '[Gister om] LT',
        lastWeek : '[Laas] dddd [om] LT',
        sameElse : 'L'
    },
    relativeTime : {
        future : 'oor %s',
        past : '%s gelede',
        s : '\'n paar sekondes',
        m : '\'n minuut',
        mm : '%d minute',
        h : '\'n uur',
        hh : '%d ure',
        d : '\'n dag',
        dd : '%d dae',
        M : '\'n maand',
        MM : '%d maande',
        y : '\'n jaar',
        yy : '%d jaar'
    },
    dayOfMonthOrdinalParse: /\d{1,2}(ste|de)/,
    ordinal : function (number) {
        return number + ((number === 1 || number === 8 || number >= 20) ? 'ste' : 'de'); // Thanks to Joris Röling : https://github.com/jjupiter
    },
    week : {
        dow : 1, // Maandag is die eerste dag van die week.
        doy : 4  // Die week wat die 4de Januarie bevat is die eerste week van die jaar.
    }
});

return af;

})));

//! moment.js locale configuration
//! locale : German [de]
//! author : lluchs : https://github.com/lluchs
//! author: Menelion Elensúle: https://github.com/Oire
//! author : Mikolaj Dadela : https://github.com/mik01aj

;(function (global, factory) {
   typeof exports === 'object' && typeof module !== 'undefined'
       && typeof require === 'function' ? factory(require('../moment')) :
   typeof define === 'function' && define.amd ? define('moment/locale/de',['../moment'], factory) :
   factory(global.moment)
}(this, (function (moment) { 'use strict';


function processRelativeTime(number, withoutSuffix, key, isFuture) {
    var format = {
        'm': ['eine Minute', 'einer Minute'],
        'h': ['eine Stunde', 'einer Stunde'],
        'd': ['ein Tag', 'einem Tag'],
        'dd': [number + ' Tage', number + ' Tagen'],
        'M': ['ein Monat', 'einem Monat'],
        'MM': [number + ' Monate', number + ' Monaten'],
        'y': ['ein Jahr', 'einem Jahr'],
        'yy': [number + ' Jahre', number + ' Jahren']
    };
    return withoutSuffix ? format[key][0] : format[key][1];
}

var de = moment.defineLocale('de', {
    months : 'Januar_Februar_März_April_Mai_Juni_Juli_August_September_Oktober_November_Dezember'.split('_'),
    monthsShort : 'Jan._Febr._Mrz._Apr._Mai_Jun._Jul._Aug._Sept._Okt._Nov._Dez.'.split('_'),
    monthsParseExact : true,
    weekdays : 'Sonntag_Montag_Dienstag_Mittwoch_Donnerstag_Freitag_Samstag'.split('_'),
    weekdaysShort : 'So._Mo._Di._Mi._Do._Fr._Sa.'.split('_'),
    weekdaysMin : 'So_Mo_Di_Mi_Do_Fr_Sa'.split('_'),
    weekdaysParseExact : true,
    longDateFormat : {
        LT: 'HH:mm',
        LTS: 'HH:mm:ss',
        L : 'DD.MM.YYYY',
        LL : 'D. MMMM YYYY',
        LLL : 'D. MMMM YYYY HH:mm',
        LLLL : 'dddd, D. MMMM YYYY HH:mm'
    },
    calendar : {
        sameDay: '[heute um] LT [Uhr]',
        sameElse: 'L',
        nextDay: '[morgen um] LT [Uhr]',
        nextWeek: 'dddd [um] LT [Uhr]',
        lastDay: '[gestern um] LT [Uhr]',
        lastWeek: '[letzten] dddd [um] LT [Uhr]'
    },
    relativeTime : {
        future : 'in %s',
        past : 'vor %s',
        s : 'ein paar Sekunden',
        m : processRelativeTime,
        mm : '%d Minuten',
        h : processRelativeTime,
        hh : '%d Stunden',
        d : processRelativeTime,
        dd : processRelativeTime,
        M : processRelativeTime,
        MM : processRelativeTime,
        y : processRelativeTime,
        yy : processRelativeTime
    },
    dayOfMonthOrdinalParse: /\d{1,2}\./,
    ordinal : '%d.',
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 4  // The week that contains Jan 4th is the first week of the year.
    }
});

return de;

})));

//! moment.js locale configuration
//! locale : Spanish [es]
//! author : Julio Napurí : https://github.com/julionc

;(function (global, factory) {
   typeof exports === 'object' && typeof module !== 'undefined'
       && typeof require === 'function' ? factory(require('../moment')) :
   typeof define === 'function' && define.amd ? define('moment/locale/es',['../moment'], factory) :
   factory(global.moment)
}(this, (function (moment) { 'use strict';


var monthsShortDot = 'ene._feb._mar._abr._may._jun._jul._ago._sep._oct._nov._dic.'.split('_');
var monthsShort = 'ene_feb_mar_abr_may_jun_jul_ago_sep_oct_nov_dic'.split('_');

var es = moment.defineLocale('es', {
    months : 'enero_febrero_marzo_abril_mayo_junio_julio_agosto_septiembre_octubre_noviembre_diciembre'.split('_'),
    monthsShort : function (m, format) {
        if (!m) {
            return monthsShortDot;
        } else if (/-MMM-/.test(format)) {
            return monthsShort[m.month()];
        } else {
            return monthsShortDot[m.month()];
        }
    },
    monthsParseExact : true,
    weekdays : 'domingo_lunes_martes_miércoles_jueves_viernes_sábado'.split('_'),
    weekdaysShort : 'dom._lun._mar._mié._jue._vie._sáb.'.split('_'),
    weekdaysMin : 'do_lu_ma_mi_ju_vi_sá'.split('_'),
    weekdaysParseExact : true,
    longDateFormat : {
        LT : 'H:mm',
        LTS : 'H:mm:ss',
        L : 'DD/MM/YYYY',
        LL : 'D [de] MMMM [de] YYYY',
        LLL : 'D [de] MMMM [de] YYYY H:mm',
        LLLL : 'dddd, D [de] MMMM [de] YYYY H:mm'
    },
    calendar : {
        sameDay : function () {
            return '[hoy a la' + ((this.hours() !== 1) ? 's' : '') + '] LT';
        },
        nextDay : function () {
            return '[mañana a la' + ((this.hours() !== 1) ? 's' : '') + '] LT';
        },
        nextWeek : function () {
            return 'dddd [a la' + ((this.hours() !== 1) ? 's' : '') + '] LT';
        },
        lastDay : function () {
            return '[ayer a la' + ((this.hours() !== 1) ? 's' : '') + '] LT';
        },
        lastWeek : function () {
            return '[el] dddd [pasado a la' + ((this.hours() !== 1) ? 's' : '') + '] LT';
        },
        sameElse : 'L'
    },
    relativeTime : {
        future : 'en %s',
        past : 'hace %s',
        s : 'unos segundos',
        m : 'un minuto',
        mm : '%d minutos',
        h : 'una hora',
        hh : '%d horas',
        d : 'un día',
        dd : '%d días',
        M : 'un mes',
        MM : '%d meses',
        y : 'un año',
        yy : '%d años'
    },
    dayOfMonthOrdinalParse : /\d{1,2}º/,
    ordinal : '%dº',
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 4  // The week that contains Jan 4th is the first week of the year.
    }
});

return es;

})));

//! moment.js locale configuration
//! locale : French [fr]
//! author : John Fischer : https://github.com/jfroffice

;(function (global, factory) {
   typeof exports === 'object' && typeof module !== 'undefined'
       && typeof require === 'function' ? factory(require('../moment')) :
   typeof define === 'function' && define.amd ? define('moment/locale/fr',['../moment'], factory) :
   factory(global.moment)
}(this, (function (moment) { 'use strict';


var fr = moment.defineLocale('fr', {
    months : 'janvier_février_mars_avril_mai_juin_juillet_août_septembre_octobre_novembre_décembre'.split('_'),
    monthsShort : 'janv._févr._mars_avr._mai_juin_juil._août_sept._oct._nov._déc.'.split('_'),
    monthsParseExact : true,
    weekdays : 'dimanche_lundi_mardi_mercredi_jeudi_vendredi_samedi'.split('_'),
    weekdaysShort : 'dim._lun._mar._mer._jeu._ven._sam.'.split('_'),
    weekdaysMin : 'Di_Lu_Ma_Me_Je_Ve_Sa'.split('_'),
    weekdaysParseExact : true,
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'DD/MM/YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY HH:mm',
        LLLL : 'dddd D MMMM YYYY HH:mm'
    },
    calendar : {
        sameDay : '[Aujourd’hui à] LT',
        nextDay : '[Demain à] LT',
        nextWeek : 'dddd [à] LT',
        lastDay : '[Hier à] LT',
        lastWeek : 'dddd [dernier à] LT',
        sameElse : 'L'
    },
    relativeTime : {
        future : 'dans %s',
        past : 'il y a %s',
        s : 'quelques secondes',
        m : 'une minute',
        mm : '%d minutes',
        h : 'une heure',
        hh : '%d heures',
        d : 'un jour',
        dd : '%d jours',
        M : 'un mois',
        MM : '%d mois',
        y : 'un an',
        yy : '%d ans'
    },
    dayOfMonthOrdinalParse: /\d{1,2}(er|)/,
    ordinal : function (number, period) {
        switch (period) {
            // TODO: Return 'e' when day of month > 1. Move this case inside
            // block for masculine words below.
            // See https://github.com/moment/moment/issues/3375
            case 'D':
                return number + (number === 1 ? 'er' : '');

            // Words with masculine grammatical gender: mois, trimestre, jour
            default:
            case 'M':
            case 'Q':
            case 'DDD':
            case 'd':
                return number + (number === 1 ? 'er' : 'e');

            // Words with feminine grammatical gender: semaine
            case 'w':
            case 'W':
                return number + (number === 1 ? 're' : 'e');
        }
    },
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 4  // The week that contains Jan 4th is the first week of the year.
    }
});

return fr;

})));

//! moment.js locale configuration
//! locale : Hebrew [he]
//! author : Tomer Cohen : https://github.com/tomer
//! author : Moshe Simantov : https://github.com/DevelopmentIL
//! author : Tal Ater : https://github.com/TalAter

;(function (global, factory) {
   typeof exports === 'object' && typeof module !== 'undefined'
       && typeof require === 'function' ? factory(require('../moment')) :
   typeof define === 'function' && define.amd ? define('moment/locale/he',['../moment'], factory) :
   factory(global.moment)
}(this, (function (moment) { 'use strict';


var he = moment.defineLocale('he', {
    months : 'ינואר_פברואר_מרץ_אפריל_מאי_יוני_יולי_אוגוסט_ספטמבר_אוקטובר_נובמבר_דצמבר'.split('_'),
    monthsShort : 'ינו׳_פבר׳_מרץ_אפר׳_מאי_יוני_יולי_אוג׳_ספט׳_אוק׳_נוב׳_דצמ׳'.split('_'),
    weekdays : 'ראשון_שני_שלישי_רביעי_חמישי_שישי_שבת'.split('_'),
    weekdaysShort : 'א׳_ב׳_ג׳_ד׳_ה׳_ו׳_ש׳'.split('_'),
    weekdaysMin : 'א_ב_ג_ד_ה_ו_ש'.split('_'),
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'DD/MM/YYYY',
        LL : 'D [ב]MMMM YYYY',
        LLL : 'D [ב]MMMM YYYY HH:mm',
        LLLL : 'dddd, D [ב]MMMM YYYY HH:mm',
        l : 'D/M/YYYY',
        ll : 'D MMM YYYY',
        lll : 'D MMM YYYY HH:mm',
        llll : 'ddd, D MMM YYYY HH:mm'
    },
    calendar : {
        sameDay : '[היום ב־]LT',
        nextDay : '[מחר ב־]LT',
        nextWeek : 'dddd [בשעה] LT',
        lastDay : '[אתמול ב־]LT',
        lastWeek : '[ביום] dddd [האחרון בשעה] LT',
        sameElse : 'L'
    },
    relativeTime : {
        future : 'בעוד %s',
        past : 'לפני %s',
        s : 'מספר שניות',
        m : 'דקה',
        mm : '%d דקות',
        h : 'שעה',
        hh : function (number) {
            if (number === 2) {
                return 'שעתיים';
            }
            return number + ' שעות';
        },
        d : 'יום',
        dd : function (number) {
            if (number === 2) {
                return 'יומיים';
            }
            return number + ' ימים';
        },
        M : 'חודש',
        MM : function (number) {
            if (number === 2) {
                return 'חודשיים';
            }
            return number + ' חודשים';
        },
        y : 'שנה',
        yy : function (number) {
            if (number === 2) {
                return 'שנתיים';
            } else if (number % 10 === 0 && number !== 10) {
                return number + ' שנה';
            }
            return number + ' שנים';
        }
    },
    meridiemParse: /אחה"צ|לפנה"צ|אחרי הצהריים|לפני הצהריים|לפנות בוקר|בבוקר|בערב/i,
    isPM : function (input) {
        return /^(אחה"צ|אחרי הצהריים|בערב)$/.test(input);
    },
    meridiem : function (hour, minute, isLower) {
        if (hour < 5) {
            return 'לפנות בוקר';
        } else if (hour < 10) {
            return 'בבוקר';
        } else if (hour < 12) {
            return isLower ? 'לפנה"צ' : 'לפני הצהריים';
        } else if (hour < 18) {
            return isLower ? 'אחה"צ' : 'אחרי הצהריים';
        } else {
            return 'בערב';
        }
    }
});

return he;

})));

//! moment.js locale configuration
//! locale : Hungarian [hu]
//! author : Adam Brunner : https://github.com/adambrunner

;(function (global, factory) {
   typeof exports === 'object' && typeof module !== 'undefined'
       && typeof require === 'function' ? factory(require('../moment')) :
   typeof define === 'function' && define.amd ? define('moment/locale/hu',['../moment'], factory) :
   factory(global.moment)
}(this, (function (moment) { 'use strict';


var weekEndings = 'vasárnap hétfőn kedden szerdán csütörtökön pénteken szombaton'.split(' ');
function translate(number, withoutSuffix, key, isFuture) {
    var num = number,
        suffix;
    switch (key) {
        case 's':
            return (isFuture || withoutSuffix) ? 'néhány másodperc' : 'néhány másodperce';
        case 'm':
            return 'egy' + (isFuture || withoutSuffix ? ' perc' : ' perce');
        case 'mm':
            return num + (isFuture || withoutSuffix ? ' perc' : ' perce');
        case 'h':
            return 'egy' + (isFuture || withoutSuffix ? ' óra' : ' órája');
        case 'hh':
            return num + (isFuture || withoutSuffix ? ' óra' : ' órája');
        case 'd':
            return 'egy' + (isFuture || withoutSuffix ? ' nap' : ' napja');
        case 'dd':
            return num + (isFuture || withoutSuffix ? ' nap' : ' napja');
        case 'M':
            return 'egy' + (isFuture || withoutSuffix ? ' hónap' : ' hónapja');
        case 'MM':
            return num + (isFuture || withoutSuffix ? ' hónap' : ' hónapja');
        case 'y':
            return 'egy' + (isFuture || withoutSuffix ? ' év' : ' éve');
        case 'yy':
            return num + (isFuture || withoutSuffix ? ' év' : ' éve');
    }
    return '';
}
function week(isFuture) {
    return (isFuture ? '' : '[múlt] ') + '[' + weekEndings[this.day()] + '] LT[-kor]';
}

var hu = moment.defineLocale('hu', {
    months : 'január_február_március_április_május_június_július_augusztus_szeptember_október_november_december'.split('_'),
    monthsShort : 'jan_feb_márc_ápr_máj_jún_júl_aug_szept_okt_nov_dec'.split('_'),
    weekdays : 'vasárnap_hétfő_kedd_szerda_csütörtök_péntek_szombat'.split('_'),
    weekdaysShort : 'vas_hét_kedd_sze_csüt_pén_szo'.split('_'),
    weekdaysMin : 'v_h_k_sze_cs_p_szo'.split('_'),
    longDateFormat : {
        LT : 'H:mm',
        LTS : 'H:mm:ss',
        L : 'YYYY.MM.DD.',
        LL : 'YYYY. MMMM D.',
        LLL : 'YYYY. MMMM D. H:mm',
        LLLL : 'YYYY. MMMM D., dddd H:mm'
    },
    meridiemParse: /de|du/i,
    isPM: function (input) {
        return input.charAt(1).toLowerCase() === 'u';
    },
    meridiem : function (hours, minutes, isLower) {
        if (hours < 12) {
            return isLower === true ? 'de' : 'DE';
        } else {
            return isLower === true ? 'du' : 'DU';
        }
    },
    calendar : {
        sameDay : '[ma] LT[-kor]',
        nextDay : '[holnap] LT[-kor]',
        nextWeek : function () {
            return week.call(this, true);
        },
        lastDay : '[tegnap] LT[-kor]',
        lastWeek : function () {
            return week.call(this, false);
        },
        sameElse : 'L'
    },
    relativeTime : {
        future : '%s múlva',
        past : '%s',
        s : translate,
        m : translate,
        mm : translate,
        h : translate,
        hh : translate,
        d : translate,
        dd : translate,
        M : translate,
        MM : translate,
        y : translate,
        yy : translate
    },
    dayOfMonthOrdinalParse: /\d{1,2}\./,
    ordinal : '%d.',
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 4  // The week that contains Jan 4th is the first week of the year.
    }
});

return hu;

})));

//! moment.js locale configuration
//! locale : Indonesian [id]
//! author : Mohammad Satrio Utomo : https://github.com/tyok
//! reference: http://id.wikisource.org/wiki/Pedoman_Umum_Ejaan_Bahasa_Indonesia_yang_Disempurnakan

;(function (global, factory) {
   typeof exports === 'object' && typeof module !== 'undefined'
       && typeof require === 'function' ? factory(require('../moment')) :
   typeof define === 'function' && define.amd ? define('moment/locale/id',['../moment'], factory) :
   factory(global.moment)
}(this, (function (moment) { 'use strict';


var id = moment.defineLocale('id', {
    months : 'Januari_Februari_Maret_April_Mei_Juni_Juli_Agustus_September_Oktober_November_Desember'.split('_'),
    monthsShort : 'Jan_Feb_Mar_Apr_Mei_Jun_Jul_Ags_Sep_Okt_Nov_Des'.split('_'),
    weekdays : 'Minggu_Senin_Selasa_Rabu_Kamis_Jumat_Sabtu'.split('_'),
    weekdaysShort : 'Min_Sen_Sel_Rab_Kam_Jum_Sab'.split('_'),
    weekdaysMin : 'Mg_Sn_Sl_Rb_Km_Jm_Sb'.split('_'),
    longDateFormat : {
        LT : 'HH.mm',
        LTS : 'HH.mm.ss',
        L : 'DD/MM/YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY [pukul] HH.mm',
        LLLL : 'dddd, D MMMM YYYY [pukul] HH.mm'
    },
    meridiemParse: /pagi|siang|sore|malam/,
    meridiemHour : function (hour, meridiem) {
        if (hour === 12) {
            hour = 0;
        }
        if (meridiem === 'pagi') {
            return hour;
        } else if (meridiem === 'siang') {
            return hour >= 11 ? hour : hour + 12;
        } else if (meridiem === 'sore' || meridiem === 'malam') {
            return hour + 12;
        }
    },
    meridiem : function (hours, minutes, isLower) {
        if (hours < 11) {
            return 'pagi';
        } else if (hours < 15) {
            return 'siang';
        } else if (hours < 19) {
            return 'sore';
        } else {
            return 'malam';
        }
    },
    calendar : {
        sameDay : '[Hari ini pukul] LT',
        nextDay : '[Besok pukul] LT',
        nextWeek : 'dddd [pukul] LT',
        lastDay : '[Kemarin pukul] LT',
        lastWeek : 'dddd [lalu pukul] LT',
        sameElse : 'L'
    },
    relativeTime : {
        future : 'dalam %s',
        past : '%s yang lalu',
        s : 'beberapa detik',
        m : 'semenit',
        mm : '%d menit',
        h : 'sejam',
        hh : '%d jam',
        d : 'sehari',
        dd : '%d hari',
        M : 'sebulan',
        MM : '%d bulan',
        y : 'setahun',
        yy : '%d tahun'
    },
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 7  // The week that contains Jan 1st is the first week of the year.
    }
});

return id;

})));

//! moment.js locale configuration
//! locale : Italian [it]
//! author : Lorenzo : https://github.com/aliem
//! author: Mattia Larentis: https://github.com/nostalgiaz

;(function (global, factory) {
   typeof exports === 'object' && typeof module !== 'undefined'
       && typeof require === 'function' ? factory(require('../moment')) :
   typeof define === 'function' && define.amd ? define('moment/locale/it',['../moment'], factory) :
   factory(global.moment)
}(this, (function (moment) { 'use strict';


var it = moment.defineLocale('it', {
    months : 'gennaio_febbraio_marzo_aprile_maggio_giugno_luglio_agosto_settembre_ottobre_novembre_dicembre'.split('_'),
    monthsShort : 'gen_feb_mar_apr_mag_giu_lug_ago_set_ott_nov_dic'.split('_'),
    weekdays : 'domenica_lunedì_martedì_mercoledì_giovedì_venerdì_sabato'.split('_'),
    weekdaysShort : 'dom_lun_mar_mer_gio_ven_sab'.split('_'),
    weekdaysMin : 'do_lu_ma_me_gi_ve_sa'.split('_'),
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'DD/MM/YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY HH:mm',
        LLLL : 'dddd, D MMMM YYYY HH:mm'
    },
    calendar : {
        sameDay: '[Oggi alle] LT',
        nextDay: '[Domani alle] LT',
        nextWeek: 'dddd [alle] LT',
        lastDay: '[Ieri alle] LT',
        lastWeek: function () {
            switch (this.day()) {
                case 0:
                    return '[la scorsa] dddd [alle] LT';
                default:
                    return '[lo scorso] dddd [alle] LT';
            }
        },
        sameElse: 'L'
    },
    relativeTime : {
        future : function (s) {
            return ((/^[0-9].+$/).test(s) ? 'tra' : 'in') + ' ' + s;
        },
        past : '%s fa',
        s : 'alcuni secondi',
        m : 'un minuto',
        mm : '%d minuti',
        h : 'un\'ora',
        hh : '%d ore',
        d : 'un giorno',
        dd : '%d giorni',
        M : 'un mese',
        MM : '%d mesi',
        y : 'un anno',
        yy : '%d anni'
    },
    dayOfMonthOrdinalParse : /\d{1,2}º/,
    ordinal: '%dº',
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 4  // The week that contains Jan 4th is the first week of the year.
    }
});

return it;

})));

//! moment.js locale configuration
//! locale : Japanese [ja]
//! author : LI Long : https://github.com/baryon

;(function (global, factory) {
   typeof exports === 'object' && typeof module !== 'undefined'
       && typeof require === 'function' ? factory(require('../moment')) :
   typeof define === 'function' && define.amd ? define('moment/locale/ja',['../moment'], factory) :
   factory(global.moment)
}(this, (function (moment) { 'use strict';


var ja = moment.defineLocale('ja', {
    months : '1月_2月_3月_4月_5月_6月_7月_8月_9月_10月_11月_12月'.split('_'),
    monthsShort : '1月_2月_3月_4月_5月_6月_7月_8月_9月_10月_11月_12月'.split('_'),
    weekdays : '日曜日_月曜日_火曜日_水曜日_木曜日_金曜日_土曜日'.split('_'),
    weekdaysShort : '日_月_火_水_木_金_土'.split('_'),
    weekdaysMin : '日_月_火_水_木_金_土'.split('_'),
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'YYYY/MM/DD',
        LL : 'YYYY年M月D日',
        LLL : 'YYYY年M月D日 HH:mm',
        LLLL : 'YYYY年M月D日 HH:mm dddd',
        l : 'YYYY/MM/DD',
        ll : 'YYYY年M月D日',
        lll : 'YYYY年M月D日 HH:mm',
        llll : 'YYYY年M月D日 HH:mm dddd'
    },
    meridiemParse: /午前|午後/i,
    isPM : function (input) {
        return input === '午後';
    },
    meridiem : function (hour, minute, isLower) {
        if (hour < 12) {
            return '午前';
        } else {
            return '午後';
        }
    },
    calendar : {
        sameDay : '[今日] LT',
        nextDay : '[明日] LT',
        nextWeek : '[来週]dddd LT',
        lastDay : '[昨日] LT',
        lastWeek : '[前週]dddd LT',
        sameElse : 'L'
    },
    dayOfMonthOrdinalParse : /\d{1,2}日/,
    ordinal : function (number, period) {
        switch (period) {
            case 'd':
            case 'D':
            case 'DDD':
                return number + '日';
            default:
                return number;
        }
    },
    relativeTime : {
        future : '%s後',
        past : '%s前',
        s : '数秒',
        m : '1分',
        mm : '%d分',
        h : '1時間',
        hh : '%d時間',
        d : '1日',
        dd : '%d日',
        M : '1ヶ月',
        MM : '%dヶ月',
        y : '1年',
        yy : '%d年'
    }
});

return ja;

})));

//! moment.js locale configuration
//! locale : Norwegian Bokmål [nb]
//! authors : Espen Hovlandsdal : https://github.com/rexxars
//!           Sigurd Gartmann : https://github.com/sigurdga

;(function (global, factory) {
   typeof exports === 'object' && typeof module !== 'undefined'
       && typeof require === 'function' ? factory(require('../moment')) :
   typeof define === 'function' && define.amd ? define('moment/locale/nb',['../moment'], factory) :
   factory(global.moment)
}(this, (function (moment) { 'use strict';


var nb = moment.defineLocale('nb', {
    months : 'januar_februar_mars_april_mai_juni_juli_august_september_oktober_november_desember'.split('_'),
    monthsShort : 'jan._feb._mars_april_mai_juni_juli_aug._sep._okt._nov._des.'.split('_'),
    monthsParseExact : true,
    weekdays : 'søndag_mandag_tirsdag_onsdag_torsdag_fredag_lørdag'.split('_'),
    weekdaysShort : 'sø._ma._ti._on._to._fr._lø.'.split('_'),
    weekdaysMin : 'sø_ma_ti_on_to_fr_lø'.split('_'),
    weekdaysParseExact : true,
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'DD.MM.YYYY',
        LL : 'D. MMMM YYYY',
        LLL : 'D. MMMM YYYY [kl.] HH:mm',
        LLLL : 'dddd D. MMMM YYYY [kl.] HH:mm'
    },
    calendar : {
        sameDay: '[i dag kl.] LT',
        nextDay: '[i morgen kl.] LT',
        nextWeek: 'dddd [kl.] LT',
        lastDay: '[i går kl.] LT',
        lastWeek: '[forrige] dddd [kl.] LT',
        sameElse: 'L'
    },
    relativeTime : {
        future : 'om %s',
        past : '%s siden',
        s : 'noen sekunder',
        m : 'ett minutt',
        mm : '%d minutter',
        h : 'en time',
        hh : '%d timer',
        d : 'en dag',
        dd : '%d dager',
        M : 'en måned',
        MM : '%d måneder',
        y : 'ett år',
        yy : '%d år'
    },
    dayOfMonthOrdinalParse: /\d{1,2}\./,
    ordinal : '%d.',
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 4  // The week that contains Jan 4th is the first week of the year.
    }
});

return nb;

})));

//! moment.js locale configuration
//! locale : Dutch [nl]
//! author : Joris Röling : https://github.com/jorisroling
//! author : Jacob Middag : https://github.com/middagj

;(function (global, factory) {
   typeof exports === 'object' && typeof module !== 'undefined'
       && typeof require === 'function' ? factory(require('../moment')) :
   typeof define === 'function' && define.amd ? define('moment/locale/nl',['../moment'], factory) :
   factory(global.moment)
}(this, (function (moment) { 'use strict';


var monthsShortWithDots = 'jan._feb._mrt._apr._mei_jun._jul._aug._sep._okt._nov._dec.'.split('_');
var monthsShortWithoutDots = 'jan_feb_mrt_apr_mei_jun_jul_aug_sep_okt_nov_dec'.split('_');

var monthsParse = [/^jan/i, /^feb/i, /^maart|mrt.?$/i, /^apr/i, /^mei$/i, /^jun[i.]?$/i, /^jul[i.]?$/i, /^aug/i, /^sep/i, /^okt/i, /^nov/i, /^dec/i];
var monthsRegex = /^(januari|februari|maart|april|mei|april|ju[nl]i|augustus|september|oktober|november|december|jan\.?|feb\.?|mrt\.?|apr\.?|ju[nl]\.?|aug\.?|sep\.?|okt\.?|nov\.?|dec\.?)/i;

var nl = moment.defineLocale('nl', {
    months : 'januari_februari_maart_april_mei_juni_juli_augustus_september_oktober_november_december'.split('_'),
    monthsShort : function (m, format) {
        if (!m) {
            return monthsShortWithDots;
        } else if (/-MMM-/.test(format)) {
            return monthsShortWithoutDots[m.month()];
        } else {
            return monthsShortWithDots[m.month()];
        }
    },

    monthsRegex: monthsRegex,
    monthsShortRegex: monthsRegex,
    monthsStrictRegex: /^(januari|februari|maart|mei|ju[nl]i|april|augustus|september|oktober|november|december)/i,
    monthsShortStrictRegex: /^(jan\.?|feb\.?|mrt\.?|apr\.?|mei|ju[nl]\.?|aug\.?|sep\.?|okt\.?|nov\.?|dec\.?)/i,

    monthsParse : monthsParse,
    longMonthsParse : monthsParse,
    shortMonthsParse : monthsParse,

    weekdays : 'zondag_maandag_dinsdag_woensdag_donderdag_vrijdag_zaterdag'.split('_'),
    weekdaysShort : 'zo._ma._di._wo._do._vr._za.'.split('_'),
    weekdaysMin : 'Zo_Ma_Di_Wo_Do_Vr_Za'.split('_'),
    weekdaysParseExact : true,
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'DD-MM-YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY HH:mm',
        LLLL : 'dddd D MMMM YYYY HH:mm'
    },
    calendar : {
        sameDay: '[vandaag om] LT',
        nextDay: '[morgen om] LT',
        nextWeek: 'dddd [om] LT',
        lastDay: '[gisteren om] LT',
        lastWeek: '[afgelopen] dddd [om] LT',
        sameElse: 'L'
    },
    relativeTime : {
        future : 'over %s',
        past : '%s geleden',
        s : 'een paar seconden',
        m : 'één minuut',
        mm : '%d minuten',
        h : 'één uur',
        hh : '%d uur',
        d : 'één dag',
        dd : '%d dagen',
        M : 'één maand',
        MM : '%d maanden',
        y : 'één jaar',
        yy : '%d jaar'
    },
    dayOfMonthOrdinalParse: /\d{1,2}(ste|de)/,
    ordinal : function (number) {
        return number + ((number === 1 || number === 8 || number >= 20) ? 'ste' : 'de');
    },
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 4  // The week that contains Jan 4th is the first week of the year.
    }
});

return nl;

})));

//! moment.js locale configuration
//! locale : Polish [pl]
//! author : Rafal Hirsz : https://github.com/evoL

;(function (global, factory) {
   typeof exports === 'object' && typeof module !== 'undefined'
       && typeof require === 'function' ? factory(require('../moment')) :
   typeof define === 'function' && define.amd ? define('moment/locale/pl',['../moment'], factory) :
   factory(global.moment)
}(this, (function (moment) { 'use strict';


var monthsNominative = 'styczeń_luty_marzec_kwiecień_maj_czerwiec_lipiec_sierpień_wrzesień_październik_listopad_grudzień'.split('_');
var monthsSubjective = 'stycznia_lutego_marca_kwietnia_maja_czerwca_lipca_sierpnia_września_października_listopada_grudnia'.split('_');
function plural(n) {
    return (n % 10 < 5) && (n % 10 > 1) && ((~~(n / 10) % 10) !== 1);
}
function translate(number, withoutSuffix, key) {
    var result = number + ' ';
    switch (key) {
        case 'm':
            return withoutSuffix ? 'minuta' : 'minutę';
        case 'mm':
            return result + (plural(number) ? 'minuty' : 'minut');
        case 'h':
            return withoutSuffix  ? 'godzina'  : 'godzinę';
        case 'hh':
            return result + (plural(number) ? 'godziny' : 'godzin');
        case 'MM':
            return result + (plural(number) ? 'miesiące' : 'miesięcy');
        case 'yy':
            return result + (plural(number) ? 'lata' : 'lat');
    }
}

var pl = moment.defineLocale('pl', {
    months : function (momentToFormat, format) {
        if (!momentToFormat) {
            return monthsNominative;
        } else if (format === '') {
            // Hack: if format empty we know this is used to generate
            // RegExp by moment. Give then back both valid forms of months
            // in RegExp ready format.
            return '(' + monthsSubjective[momentToFormat.month()] + '|' + monthsNominative[momentToFormat.month()] + ')';
        } else if (/D MMMM/.test(format)) {
            return monthsSubjective[momentToFormat.month()];
        } else {
            return monthsNominative[momentToFormat.month()];
        }
    },
    monthsShort : 'sty_lut_mar_kwi_maj_cze_lip_sie_wrz_paź_lis_gru'.split('_'),
    weekdays : 'niedziela_poniedziałek_wtorek_środa_czwartek_piątek_sobota'.split('_'),
    weekdaysShort : 'ndz_pon_wt_śr_czw_pt_sob'.split('_'),
    weekdaysMin : 'Nd_Pn_Wt_Śr_Cz_Pt_So'.split('_'),
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'DD.MM.YYYY',
        LL : 'D MMMM YYYY',
        LLL : 'D MMMM YYYY HH:mm',
        LLLL : 'dddd, D MMMM YYYY HH:mm'
    },
    calendar : {
        sameDay: '[Dziś o] LT',
        nextDay: '[Jutro o] LT',
        nextWeek: '[W] dddd [o] LT',
        lastDay: '[Wczoraj o] LT',
        lastWeek: function () {
            switch (this.day()) {
                case 0:
                    return '[W zeszłą niedzielę o] LT';
                case 3:
                    return '[W zeszłą środę o] LT';
                case 6:
                    return '[W zeszłą sobotę o] LT';
                default:
                    return '[W zeszły] dddd [o] LT';
            }
        },
        sameElse: 'L'
    },
    relativeTime : {
        future : 'za %s',
        past : '%s temu',
        s : 'kilka sekund',
        m : translate,
        mm : translate,
        h : translate,
        hh : translate,
        d : '1 dzień',
        dd : '%d dni',
        M : 'miesiąc',
        MM : translate,
        y : 'rok',
        yy : translate
    },
    dayOfMonthOrdinalParse: /\d{1,2}\./,
    ordinal : '%d.',
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 4  // The week that contains Jan 4th is the first week of the year.
    }
});

return pl;

})));

//! moment.js locale configuration
//! locale : Portuguese (Brazil) [pt-br]
//! author : Caio Ribeiro Pereira : https://github.com/caio-ribeiro-pereira

;(function (global, factory) {
   typeof exports === 'object' && typeof module !== 'undefined'
       && typeof require === 'function' ? factory(require('../moment')) :
   typeof define === 'function' && define.amd ? define('moment/locale/pt-br',['../moment'], factory) :
   factory(global.moment)
}(this, (function (moment) { 'use strict';


var ptBr = moment.defineLocale('pt-br', {
    months : 'Janeiro_Fevereiro_Março_Abril_Maio_Junho_Julho_Agosto_Setembro_Outubro_Novembro_Dezembro'.split('_'),
    monthsShort : 'Jan_Fev_Mar_Abr_Mai_Jun_Jul_Ago_Set_Out_Nov_Dez'.split('_'),
    weekdays : 'Domingo_Segunda-feira_Terça-feira_Quarta-feira_Quinta-feira_Sexta-feira_Sábado'.split('_'),
    weekdaysShort : 'Dom_Seg_Ter_Qua_Qui_Sex_Sáb'.split('_'),
    weekdaysMin : 'Do_2ª_3ª_4ª_5ª_6ª_Sá'.split('_'),
    weekdaysParseExact : true,
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'DD/MM/YYYY',
        LL : 'D [de] MMMM [de] YYYY',
        LLL : 'D [de] MMMM [de] YYYY [às] HH:mm',
        LLLL : 'dddd, D [de] MMMM [de] YYYY [às] HH:mm'
    },
    calendar : {
        sameDay: '[Hoje às] LT',
        nextDay: '[Amanhã às] LT',
        nextWeek: 'dddd [às] LT',
        lastDay: '[Ontem às] LT',
        lastWeek: function () {
            return (this.day() === 0 || this.day() === 6) ?
                '[Último] dddd [às] LT' : // Saturday + Sunday
                '[Última] dddd [às] LT'; // Monday - Friday
        },
        sameElse: 'L'
    },
    relativeTime : {
        future : 'em %s',
        past : '%s atrás',
        s : 'poucos segundos',
        m : 'um minuto',
        mm : '%d minutos',
        h : 'uma hora',
        hh : '%d horas',
        d : 'um dia',
        dd : '%d dias',
        M : 'um mês',
        MM : '%d meses',
        y : 'um ano',
        yy : '%d anos'
    },
    dayOfMonthOrdinalParse: /\d{1,2}º/,
    ordinal : '%dº'
});

return ptBr;

})));

//! moment.js locale configuration
//! locale : Russian [ru]
//! author : Viktorminator : https://github.com/Viktorminator
//! Author : Menelion Elensúle : https://github.com/Oire
//! author : Коренберг Марк : https://github.com/socketpair

;(function (global, factory) {
   typeof exports === 'object' && typeof module !== 'undefined'
       && typeof require === 'function' ? factory(require('../moment')) :
   typeof define === 'function' && define.amd ? define('moment/locale/ru',['../moment'], factory) :
   factory(global.moment)
}(this, (function (moment) { 'use strict';


function plural(word, num) {
    var forms = word.split('_');
    return num % 10 === 1 && num % 100 !== 11 ? forms[0] : (num % 10 >= 2 && num % 10 <= 4 && (num % 100 < 10 || num % 100 >= 20) ? forms[1] : forms[2]);
}
function relativeTimeWithPlural(number, withoutSuffix, key) {
    var format = {
        'mm': withoutSuffix ? 'минута_минуты_минут' : 'минуту_минуты_минут',
        'hh': 'час_часа_часов',
        'dd': 'день_дня_дней',
        'MM': 'месяц_месяца_месяцев',
        'yy': 'год_года_лет'
    };
    if (key === 'm') {
        return withoutSuffix ? 'минута' : 'минуту';
    }
    else {
        return number + ' ' + plural(format[key], +number);
    }
}
var monthsParse = [/^янв/i, /^фев/i, /^мар/i, /^апр/i, /^ма[йя]/i, /^июн/i, /^июл/i, /^авг/i, /^сен/i, /^окт/i, /^ноя/i, /^дек/i];

// http://new.gramota.ru/spravka/rules/139-prop : § 103
// Сокращения месяцев: http://new.gramota.ru/spravka/buro/search-answer?s=242637
// CLDR data:          http://www.unicode.org/cldr/charts/28/summary/ru.html#1753
var ru = moment.defineLocale('ru', {
    months : {
        format: 'января_февраля_марта_апреля_мая_июня_июля_августа_сентября_октября_ноября_декабря'.split('_'),
        standalone: 'январь_февраль_март_апрель_май_июнь_июль_август_сентябрь_октябрь_ноябрь_декабрь'.split('_')
    },
    monthsShort : {
        // по CLDR именно "июл." и "июн.", но какой смысл менять букву на точку ?
        format: 'янв._февр._мар._апр._мая_июня_июля_авг._сент._окт._нояб._дек.'.split('_'),
        standalone: 'янв._февр._март_апр._май_июнь_июль_авг._сент._окт._нояб._дек.'.split('_')
    },
    weekdays : {
        standalone: 'воскресенье_понедельник_вторник_среда_четверг_пятница_суббота'.split('_'),
        format: 'воскресенье_понедельник_вторник_среду_четверг_пятницу_субботу'.split('_'),
        isFormat: /\[ ?[Вв] ?(?:прошлую|следующую|эту)? ?\] ?dddd/
    },
    weekdaysShort : 'вс_пн_вт_ср_чт_пт_сб'.split('_'),
    weekdaysMin : 'вс_пн_вт_ср_чт_пт_сб'.split('_'),
    monthsParse : monthsParse,
    longMonthsParse : monthsParse,
    shortMonthsParse : monthsParse,

    // полные названия с падежами, по три буквы, для некоторых, по 4 буквы, сокращения с точкой и без точки
    monthsRegex: /^(январ[ья]|янв\.?|феврал[ья]|февр?\.?|марта?|мар\.?|апрел[ья]|апр\.?|ма[йя]|июн[ья]|июн\.?|июл[ья]|июл\.?|августа?|авг\.?|сентябр[ья]|сент?\.?|октябр[ья]|окт\.?|ноябр[ья]|нояб?\.?|декабр[ья]|дек\.?)/i,

    // копия предыдущего
    monthsShortRegex: /^(январ[ья]|янв\.?|феврал[ья]|февр?\.?|марта?|мар\.?|апрел[ья]|апр\.?|ма[йя]|июн[ья]|июн\.?|июл[ья]|июл\.?|августа?|авг\.?|сентябр[ья]|сент?\.?|октябр[ья]|окт\.?|ноябр[ья]|нояб?\.?|декабр[ья]|дек\.?)/i,

    // полные названия с падежами
    monthsStrictRegex: /^(январ[яь]|феврал[яь]|марта?|апрел[яь]|ма[яй]|июн[яь]|июл[яь]|августа?|сентябр[яь]|октябр[яь]|ноябр[яь]|декабр[яь])/i,

    // Выражение, которое соотвествует только сокращённым формам
    monthsShortStrictRegex: /^(янв\.|февр?\.|мар[т.]|апр\.|ма[яй]|июн[ья.]|июл[ья.]|авг\.|сент?\.|окт\.|нояб?\.|дек\.)/i,
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'DD.MM.YYYY',
        LL : 'D MMMM YYYY г.',
        LLL : 'D MMMM YYYY г., HH:mm',
        LLLL : 'dddd, D MMMM YYYY г., HH:mm'
    },
    calendar : {
        sameDay: '[Сегодня в] LT',
        nextDay: '[Завтра в] LT',
        lastDay: '[Вчера в] LT',
        nextWeek: function (now) {
            if (now.week() !== this.week()) {
                switch (this.day()) {
                    case 0:
                        return '[В следующее] dddd [в] LT';
                    case 1:
                    case 2:
                    case 4:
                        return '[В следующий] dddd [в] LT';
                    case 3:
                    case 5:
                    case 6:
                        return '[В следующую] dddd [в] LT';
                }
            } else {
                if (this.day() === 2) {
                    return '[Во] dddd [в] LT';
                } else {
                    return '[В] dddd [в] LT';
                }
            }
        },
        lastWeek: function (now) {
            if (now.week() !== this.week()) {
                switch (this.day()) {
                    case 0:
                        return '[В прошлое] dddd [в] LT';
                    case 1:
                    case 2:
                    case 4:
                        return '[В прошлый] dddd [в] LT';
                    case 3:
                    case 5:
                    case 6:
                        return '[В прошлую] dddd [в] LT';
                }
            } else {
                if (this.day() === 2) {
                    return '[Во] dddd [в] LT';
                } else {
                    return '[В] dddd [в] LT';
                }
            }
        },
        sameElse: 'L'
    },
    relativeTime : {
        future : 'через %s',
        past : '%s назад',
        s : 'несколько секунд',
        m : relativeTimeWithPlural,
        mm : relativeTimeWithPlural,
        h : 'час',
        hh : relativeTimeWithPlural,
        d : 'день',
        dd : relativeTimeWithPlural,
        M : 'месяц',
        MM : relativeTimeWithPlural,
        y : 'год',
        yy : relativeTimeWithPlural
    },
    meridiemParse: /ночи|утра|дня|вечера/i,
    isPM : function (input) {
        return /^(дня|вечера)$/.test(input);
    },
    meridiem : function (hour, minute, isLower) {
        if (hour < 4) {
            return 'ночи';
        } else if (hour < 12) {
            return 'утра';
        } else if (hour < 17) {
            return 'дня';
        } else {
            return 'вечера';
        }
    },
    dayOfMonthOrdinalParse: /\d{1,2}-(й|го|я)/,
    ordinal: function (number, period) {
        switch (period) {
            case 'M':
            case 'd':
            case 'DDD':
                return number + '-й';
            case 'D':
                return number + '-го';
            case 'w':
            case 'W':
                return number + '-я';
            default:
                return number;
        }
    },
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 7  // The week that contains Jan 1st is the first week of the year.
    }
});

return ru;

})));

//! moment.js locale configuration
//! locale : Ukrainian [uk]
//! author : zemlanin : https://github.com/zemlanin
//! Author : Menelion Elensúle : https://github.com/Oire

;(function (global, factory) {
   typeof exports === 'object' && typeof module !== 'undefined'
       && typeof require === 'function' ? factory(require('../moment')) :
   typeof define === 'function' && define.amd ? define('moment/locale/uk',['../moment'], factory) :
   factory(global.moment)
}(this, (function (moment) { 'use strict';


function plural(word, num) {
    var forms = word.split('_');
    return num % 10 === 1 && num % 100 !== 11 ? forms[0] : (num % 10 >= 2 && num % 10 <= 4 && (num % 100 < 10 || num % 100 >= 20) ? forms[1] : forms[2]);
}
function relativeTimeWithPlural(number, withoutSuffix, key) {
    var format = {
        'mm': withoutSuffix ? 'хвилина_хвилини_хвилин' : 'хвилину_хвилини_хвилин',
        'hh': withoutSuffix ? 'година_години_годин' : 'годину_години_годин',
        'dd': 'день_дні_днів',
        'MM': 'місяць_місяці_місяців',
        'yy': 'рік_роки_років'
    };
    if (key === 'm') {
        return withoutSuffix ? 'хвилина' : 'хвилину';
    }
    else if (key === 'h') {
        return withoutSuffix ? 'година' : 'годину';
    }
    else {
        return number + ' ' + plural(format[key], +number);
    }
}
function weekdaysCaseReplace(m, format) {
    var weekdays = {
        'nominative': 'неділя_понеділок_вівторок_середа_четвер_п’ятниця_субота'.split('_'),
        'accusative': 'неділю_понеділок_вівторок_середу_четвер_п’ятницю_суботу'.split('_'),
        'genitive': 'неділі_понеділка_вівторка_середи_четверга_п’ятниці_суботи'.split('_')
    };

    if (!m) {
        return weekdays['nominative'];
    }

    var nounCase = (/(\[[ВвУу]\]) ?dddd/).test(format) ?
        'accusative' :
        ((/\[?(?:минулої|наступної)? ?\] ?dddd/).test(format) ?
            'genitive' :
            'nominative');
    return weekdays[nounCase][m.day()];
}
function processHoursFunction(str) {
    return function () {
        return str + 'о' + (this.hours() === 11 ? 'б' : '') + '] LT';
    };
}

var uk = moment.defineLocale('uk', {
    months : {
        'format': 'січня_лютого_березня_квітня_травня_червня_липня_серпня_вересня_жовтня_листопада_грудня'.split('_'),
        'standalone': 'січень_лютий_березень_квітень_травень_червень_липень_серпень_вересень_жовтень_листопад_грудень'.split('_')
    },
    monthsShort : 'січ_лют_бер_квіт_трав_черв_лип_серп_вер_жовт_лист_груд'.split('_'),
    weekdays : weekdaysCaseReplace,
    weekdaysShort : 'нд_пн_вт_ср_чт_пт_сб'.split('_'),
    weekdaysMin : 'нд_пн_вт_ср_чт_пт_сб'.split('_'),
    longDateFormat : {
        LT : 'HH:mm',
        LTS : 'HH:mm:ss',
        L : 'DD.MM.YYYY',
        LL : 'D MMMM YYYY р.',
        LLL : 'D MMMM YYYY р., HH:mm',
        LLLL : 'dddd, D MMMM YYYY р., HH:mm'
    },
    calendar : {
        sameDay: processHoursFunction('[Сьогодні '),
        nextDay: processHoursFunction('[Завтра '),
        lastDay: processHoursFunction('[Вчора '),
        nextWeek: processHoursFunction('[У] dddd ['),
        lastWeek: function () {
            switch (this.day()) {
                case 0:
                case 3:
                case 5:
                case 6:
                    return processHoursFunction('[Минулої] dddd [').call(this);
                case 1:
                case 2:
                case 4:
                    return processHoursFunction('[Минулого] dddd [').call(this);
            }
        },
        sameElse: 'L'
    },
    relativeTime : {
        future : 'за %s',
        past : '%s тому',
        s : 'декілька секунд',
        m : relativeTimeWithPlural,
        mm : relativeTimeWithPlural,
        h : 'годину',
        hh : relativeTimeWithPlural,
        d : 'день',
        dd : relativeTimeWithPlural,
        M : 'місяць',
        MM : relativeTimeWithPlural,
        y : 'рік',
        yy : relativeTimeWithPlural
    },
    // M. E.: those two are virtually unused but a user might want to implement them for his/her website for some reason
    meridiemParse: /ночі|ранку|дня|вечора/,
    isPM: function (input) {
        return /^(дня|вечора)$/.test(input);
    },
    meridiem : function (hour, minute, isLower) {
        if (hour < 4) {
            return 'ночі';
        } else if (hour < 12) {
            return 'ранку';
        } else if (hour < 17) {
            return 'дня';
        } else {
            return 'вечора';
        }
    },
    dayOfMonthOrdinalParse: /\d{1,2}-(й|го)/,
    ordinal: function (number, period) {
        switch (period) {
            case 'M':
            case 'd':
            case 'DDD':
            case 'w':
            case 'W':
                return number + '-й';
            case 'D':
                return number + '-го';
            default:
                return number;
        }
    },
    week : {
        dow : 1, // Monday is the first day of the week.
        doy : 7  // The week that contains Jan 1st is the first week of the year.
    }
});

return uk;

})));

/*
 * This file specifies the supported locales for moment.js.
 *
 * Translations take up a lot of space and you are therefore advised to remove
 * from here any languages that you don't need.
 *
 * See also src/locales.js
 */
(function (root, factory) {
    define("moment_with_locales", [
        'moment',   // Everything below can be removed except for moment itself.
        'moment/locale/af',
        'moment/locale/de',
        'moment/locale/es',
        'moment/locale/fr',
        'moment/locale/he',
        'moment/locale/hu',
        'moment/locale/id',
        'moment/locale/it',
        'moment/locale/ja',
        'moment/locale/nb',
        'moment/locale/nl',
        'moment/locale/pl',
        'moment/locale/pt-br',
        'moment/locale/ru',
        'moment/locale/uk',
        // 'moment/locale/zh' (No longer in locales, now only with
        // country codes, e.g. zh-cn.js zh-hk.js zh-tw.js).
        ], function (moment) {
            return moment;
        });
})(this);

/* Lo-Dash Template Loader v1.0.1
 * Copyright 2015, Tim Branyen (@tbranyen).
 * loader.js may be freely distributed under the MIT license.
 */
(function(global) {
"use strict";

// Cache used to map configuration options between load and write.
var buildMap = {};

// Alias the correct `nodeRequire` method.
var nodeRequire = typeof requirejs === "function" && requirejs.nodeRequire;

// Strips trailing `/` from url fragments.
var stripTrailing = function(prop) {
  return prop.replace(/(\/$)/, '');
};

// Define the plugin using the CommonJS syntax.
define('tpl',['require','exports','module','lodash'],function(require, exports) {
  var _ = require("lodash");

  exports.version = "1.0.1";

  // Invoked by the AMD builder, passed the path to resolve, the require
  // function, done callback, and the configuration options.
  exports.load = function(name, req, load, config) {
    var isDojo;

    // Dojo provides access to the config object through the req function.
    if (!config) {
      config = require.rawConfig;
      isDojo = true;
    }

    var contents = "";
    var settings = configure(config);

    // If the baseUrl and root are the same, just null out the root.
    if (stripTrailing(config.baseUrl) === stripTrailing(settings.root)) {
      settings.root = '';
    }

    var url = require.toUrl(settings.root + name + settings.ext);

    if (isDojo && url.indexOf(config.baseUrl) !== 0) {
      url = stripTrailing(config.baseUrl) + url;
    }

    // Builds with r.js require Node.js to be installed.
    if (config.isBuild) {
      // If in Node, get access to the filesystem.
      var fs = nodeRequire("fs");

      try {
        // First try reading the filepath as-is.
        contents = String(fs.readFileSync(url));
      } catch(ex) {
        // If it failed, it's most likely because of a leading `/` and not an
        // absolute path.  Remove the leading slash and try again.
        if (url.slice(0, 1) === "/") {
          url = url.slice(1);
        }

        // Try reading again with the leading `/`.
        contents = String(fs.readFileSync(url));
      }

      // Read in the file synchronously, as RequireJS expects, and return the
      // contents.  Process as a Lo-Dash template.
      buildMap[name] = _.template(contents);

      return load();
    }

    // Create a basic XHR.
    var xhr = new XMLHttpRequest();

    // Wait for it to load.
    xhr.onreadystatechange = function() {
      if (xhr.readyState === 4) {
        var templateSettings = _.clone(settings.templateSettings);

        // Attach the sourceURL.
        templateSettings.sourceURL = url;

        // Process as a Lo-Dash template and cache.
        buildMap[name] = _.template(xhr.responseText, templateSettings);

        // Return the compiled template.
        load(buildMap[name]);
      }
    };

    // Initiate the fetch.
    xhr.open("GET", url, true);
    xhr.send(null);
  };

  // Also invoked by the AMD builder, this writes out a compatible define
  // call that will work with loaders such as almond.js that cannot read
  // the configuration data.
  exports.write = function(pluginName, moduleName, write) {
    var template = buildMap[moduleName].source;

    // Write out the actual definition
    write(strDefine(pluginName, moduleName, template));
  };

  // This is for curl.js/cram.js build-time support.
  exports.compile = function(pluginName, moduleName, req, io, config) {
    configure(config);

    // Ask cram to fetch the template file (resId) and pass it to `write`.
    io.read(moduleName, write, io.error);

    function write(template) {
      // Write-out define(id,function(){return{/* template */}});
      io.write(strDefine(pluginName, moduleName, template));
    }
  };

  // Crafts the written definition form of the module during a build.
  function strDefine(pluginName, moduleName, template) {
    return [
      "define('", pluginName, "!", moduleName, "', ", "['lodash'], ",
        [
          "function(_) {",
            "return ", template, ";",
          "}"
        ].join(""),
      ");\n"
    ].join("");
  }

  function configure(config) {
    // Default settings point to the project root and using html files.
    var settings = _.extend({
      ext: ".html",
      root: config.baseUrl,
      templateSettings: {}
    }, config.lodashLoader);

    // Ensure the root has been properly configured with a trailing slash,
    // unless it's an empty string or undefined, in which case work off the
    // baseUrl.
    if (settings.root && settings.root.slice(-1) !== "/") {
      settings.root += "/";
    }

    // Set the custom passed in template settings.
    _.extend(_.templateSettings, settings.templateSettings);

    return settings;
  }
});

})(typeof global === "object" ? global : this);


define('tpl!field', ['lodash'], function(_) {return function(obj) {
obj || (obj = {});
var __t, __p = '', __e = _.escape, __j = Array.prototype.join;
function print() { __p += __j.call(arguments, '') }
with (obj) {
__p += '<field var="' +
__e(name) +
'">';
 if (_.isArray(value)) { ;
__p += '\n    ';
 _.each(value,function(arrayValue) { ;
__p += '<value>' +
__e(arrayValue) +
'</value>';
 }); ;
__p += '\n';
 } else { ;
__p += '\n    <value>' +
__e(value) +
'</value>\n';
 } ;
__p += '</field>\n';

}
return __p
};});


define('tpl!select_option', ['lodash'], function(_) {return function(obj) {
obj || (obj = {});
var __t, __p = '', __e = _.escape, __j = Array.prototype.join;
function print() { __p += __j.call(arguments, '') }
with (obj) {
__p += '<option value="' +
__e(value) +
'" ';
 if (selected) { ;
__p += ' selected="selected" ';
 } ;
__p += ' >' +
__e(label) +
'</option>\n';

}
return __p
};});


define('tpl!form_select', ['lodash'], function(_) {return function(obj) {
obj || (obj = {});
var __t, __p = '', __e = _.escape, __j = Array.prototype.join;
function print() { __p += __j.call(arguments, '') }
with (obj) {
__p += '<label>' +
__e(label) +
'</label>\n<select name="' +
__e(name) +
'"  ';
 if (multiple) { ;
__p += ' multiple="multiple" ';
 } ;
__p += '>' +
((__t = (options)) == null ? '' : __t) +
'</select>\n';

}
return __p
};});


define('tpl!form_textarea', ['lodash'], function(_) {return function(obj) {
obj || (obj = {});
var __t, __p = '', __e = _.escape;
with (obj) {
__p += '<label class="label-ta">' +
__e(label) +
'</label>\n<textarea name="' +
__e(name) +
'">' +
__e(value) +
'</textarea>\n';

}
return __p
};});


define('tpl!form_checkbox', ['lodash'], function(_) {return function(obj) {
obj || (obj = {});
var __t, __p = '', __e = _.escape;
with (obj) {
__p += '<label>' +
__e(label) +
'</label>\n<input name="' +
__e(name) +
'" type="' +
__e(type) +
'" ' +
__e(checked) +
'>\n';

}
return __p
};});


define('tpl!form_username', ['lodash'], function(_) {return function(obj) {
obj || (obj = {});
var __t, __p = '', __e = _.escape, __j = Array.prototype.join;
function print() { __p += __j.call(arguments, '') }
with (obj) {

 if (label) { ;
__p += '\n<label>\n    ' +
__e(label) +
'\n</label>\n';
 } ;
__p += '\n<div class="input-group">\n    <input name="' +
__e(name) +
'" type="' +
__e(type) +
'"\n        ';
 if (value) { ;
__p += ' value="' +
__e(value) +
'" ';
 } ;
__p += '\n        ';
 if (required) { ;
__p += ' class="required" ';
 } ;
__p += ' />\n    <span title="' +
__e(domain) +
'">' +
__e(domain) +
'</span>\n</div>\n';

}
return __p
};});


define('tpl!form_input', ['lodash'], function(_) {return function(obj) {
obj || (obj = {});
var __t, __p = '', __e = _.escape, __j = Array.prototype.join;
function print() { __p += __j.call(arguments, '') }
with (obj) {

 if (label) { ;
__p += '\n<label>\n    ' +
__e(label) +
'\n</label>\n';
 } ;
__p += '\n<input name="' +
__e(name) +
'" type="' +
__e(type) +
'" \n    ';
 if (value) { ;
__p += ' value="' +
__e(value) +
'" ';
 } ;
__p += '\n    ';
 if (required) { ;
__p += ' class="required" ';
 } ;
__p += ' >\n';

}
return __p
};});


define('tpl!form_captcha', ['lodash'], function(_) {return function(obj) {
obj || (obj = {});
var __t, __p = '', __e = _.escape, __j = Array.prototype.join;
function print() { __p += __j.call(arguments, '') }
with (obj) {

 if (label) { ;
__p += '\n<label>\n    ' +
__e(label) +
'\n</label>\n';
 } ;
__p += '\n<img src="data:' +
__e(type) +
';base64,' +
__e(data) +
'">\n<input name="' +
__e(name) +
'" type="text" ';
 if (required) { ;
__p += ' class="required" ';
 } ;
__p += ' >\n\n\n';

}
return __p
};});

/*global define, escape, locales, Jed */
(function (root, factory) {
    define('utils',[
        "jquery.noconflict",
        "jquery.browser",
        "lodash.noconflict",
        "locales",
        "moment_with_locales",
        "tpl!field",
        "tpl!select_option",
        "tpl!form_select",
        "tpl!form_textarea",
        "tpl!form_checkbox",
        "tpl!form_username",
        "tpl!form_input",
        "tpl!form_captcha"
    ], factory);
}(this, function (
        $, dummy, _, locales, moment,
        tpl_field,
        tpl_select_option,
        tpl_form_select,
        tpl_form_textarea,
        tpl_form_checkbox,
        tpl_form_username,
        tpl_form_input,
        tpl_form_captcha
    ) {
    "use strict";
    locales = locales || {};

    var XFORM_TYPE_MAP = {
        'text-private': 'password',
        'text-single': 'text',
        'fixed': 'label',
        'boolean': 'checkbox',
        'hidden': 'hidden',
        'jid-multi': 'textarea',
        'list-single': 'dropdown',
        'list-multi': 'dropdown'
    };

    var afterAnimationEnd = function (el, callback) {
        el.classList.remove('visible');
        if (_.isFunction(callback)) {
            callback();
        }
    };

    var unescapeHTML = function (htmlEscapedText) {
        /* Helper method that replace HTML-escaped symbols with equivalent characters
         * (e.g. transform occurrences of '&amp;' to '&')
         *
         * Parameters:
         *  (String) htmlEscapedText: a String containing the HTML-escaped symbols.
         */
        var div = document.createElement('div');
        div.innerHTML = htmlEscapedText;
        return div.innerText;
    }

    var isImage = function (url) {
        var deferred = new $.Deferred();
        var img = new Image();
        var timer = window.setTimeout(function () {
            deferred.reject();
            img = null;
        }, 3000);
        img.onerror = img.onabort = function () {
            clearTimeout(timer);
            deferred.reject();
        };
        img.onload = function () {
            clearTimeout(timer);
            deferred.resolve(img);
        };
        img.src = url;
        return deferred.promise();
    };

    $.fn.hasScrollBar = function() {
        if (!$.contains(document, this.get(0))) {
            return false;
        }
        if(this.parent().height() < this.get(0).scrollHeight) {
            return true;
        }
        return false;
    };

    $.fn.throttledHTML = _.throttle($.fn.html, 500);

    $.fn.addHyperlinks = function () {
        if (this.length > 0) {
            this.each(function (i, obj) {
                var prot, escaped_url;
                var $obj = $(obj);
                var x = $obj.html();
                var list = x.match(/\b(https?:\/\/|www\.|https?:\/\/www\.)[^\s<]{2,200}\b/g );
                if (list) {
                    for (i=0; i<list.length; i++) {
                        prot = list[i].indexOf('http://') === 0 || list[i].indexOf('https://') === 0 ? '' : 'http://';
                        escaped_url = encodeURI(decodeURI(list[i])).replace(/[!'()]/g, escape).replace(/\*/g, "%2A");
                        x = x.replace(list[i], '<a target="_blank" rel="noopener" href="' + prot + escaped_url + '">'+ list[i] + '</a>' );
                    }
                }
                $obj.html(x);
                _.forEach(list, function (url) {
                    isImage(unescapeHTML(url)).then(function (img) {
                        var prot = url.indexOf('http://') === 0 || url.indexOf('https://') === 0 ? '' : 'http://';
                        var escaped_url = encodeURI(decodeURI(url)).replace(/[!'()]/g, escape).replace(/\*/g, "%2A");
                        var new_url = '<a target="_blank" rel="noopener" href="' + prot + escaped_url + '">'+ url + '</a>';
                        img.className = 'chat-image';
                        x = x.replace(new_url, img.outerHTML);
                        $obj.throttledHTML(x);
                    });
                });
            });
        }
        return this;
    };

    $.fn.addEmoticons = function (allowed) {
        if (allowed) {
            if (this.length > 0) {
                this.each(function (i, obj) {
                    var text = $(obj).html();
                    text = text.replace(/&gt;:\)/g, '<span class="emoticon icon-evil"></span>');
                    text = text.replace(/:\)/g, '<span class="emoticon icon-smiley"></span>');
                    text = text.replace(/:\-\)/g, '<span class="emoticon icon-smiley"></span>');
                    text = text.replace(/;\)/g, '<span class="emoticon icon-wink"></span>');
                    text = text.replace(/;\-\)/g, '<span class="emoticon icon-wink"></span>');
                    text = text.replace(/:D/g, '<span class="emoticon icon-grin"></span>');
                    text = text.replace(/:\-D/g, '<span class="emoticon icon-grin"></span>');
                    text = text.replace(/:P/g, '<span class="emoticon icon-tongue"></span>');
                    text = text.replace(/:\-P/g, '<span class="emoticon icon-tongue"></span>');
                    text = text.replace(/:p/g, '<span class="emoticon icon-tongue"></span>');
                    text = text.replace(/:\-p/g, '<span class="emoticon icon-tongue"></span>');
                    text = text.replace(/8\)/g, '<span class="emoticon icon-cool"></span>');
                    text = text.replace(/:S/g, '<span class="emoticon icon-confused"></span>');
                    text = text.replace(/:\\/g, '<span class="emoticon icon-wondering"></span>');
                    text = text.replace(/:\/ /g, '<span class="emoticon icon-wondering"></span>');
                    text = text.replace(/&gt;:\(/g, '<span class="emoticon icon-angry"></span>');
                    text = text.replace(/:\(/g, '<span class="emoticon icon-sad"></span>');
                    text = text.replace(/:\-\(/g, '<span class="emoticon icon-sad"></span>');
                    text = text.replace(/:O/g, '<span class="emoticon icon-shocked"></span>');
                    text = text.replace(/:\-O/g, '<span class="emoticon icon-shocked"></span>');
                    text = text.replace(/\=\-O/g, '<span class="emoticon icon-shocked"></span>');
                    text = text.replace(/\(\^.\^\)b/g, '<span class="emoticon icon-thumbs-up"></span>');
                    text = text.replace(/&lt;3/g, '<span class="emoticon icon-heart"></span>');
                    $(obj).html(text);
                });
            }
        }
        return this;
    };

    var utils = {
        // Translation machinery
        // ---------------------
        __: function (str) {
            if (!utils.isConverseLocale(this.locale) || this.locale === 'en') {
                return Jed.sprintf.apply(Jed, arguments);
            }
            if (typeof this.jed === "undefined") {
                this.jed = new Jed(window.JSON.parse(locales[this.locale]));
            }
            var t = this.jed.translate(str);
            if (arguments.length>1) {
                return t.fetch.apply(t, [].slice.call(arguments,1));
            } else {
                return t.fetch();
            }
        },

        ___: function (str) {
            /* XXX: This is part of a hack to get gettext to scan strings to be
             * translated. Strings we cannot send to the function above because
             * they require variable interpolation and we don't yet have the
             * variables at scan time.
             *
             * See actionInfoMessages in src/converse-muc.js
             */
            return str;
        },

        isLocaleAvailable: function (locale, available) {
            /* Check whether the locale or sub locale (e.g. en-US, en) is supported.
             *
             * Parameters:
             *      (Function) available - returns a boolean indicating whether the locale is supported
             */
            if (available(locale)) {
                return locale;
            } else {
                var sublocale = locale.split("-")[0];
                if (sublocale !== locale && available(sublocale)) {
                    return sublocale;
                }
            }
        },

        fadeIn: function (el, callback) {
            if ($.fx.off) {
                el.classList.remove('hidden');
                if (_.isFunction(callback)) {
                    callback();
                }
                return;
            }
            if (_.includes(el.classList, 'hidden')) {
                /* XXX: This doesn't appear to be working...
                    el.addEventListener("webkitAnimationEnd", _.partial(afterAnimationEnd, el, callback), false);
                    el.addEventListener("animationend", _.partial(afterAnimationEnd, el, callback), false);
                */
                setTimeout(_.partial(afterAnimationEnd, el, callback), 351);
                el.classList.add('visible');
                el.classList.remove('hidden');
            } else {
                afterAnimationEnd(el, callback);
            }
        },

        isOTRMessage: function (message) {
            var body = message.querySelector('body'),
                text = (!_.isNull(body) ? body.textContent: undefined);
            return text && !!text.match(/^\?OTR/);
        },

        isHeadlineMessage: function (message) {
            var from_jid = message.getAttribute('from');
            if (message.getAttribute('type') === 'headline') {
                return true;
            }
            if (message.getAttribute('type') !== 'error' &&
                    !_.isNil(from_jid) &&
                    !_.includes(from_jid, '@')) {
                // Some servers (I'm looking at you Prosody) don't set the message
                // type to "headline" when sending server messages. For now we
                // check if an @ signal is included, and if not, we assume it's
                // a headline message.
                return true;
            }
            return false;
        },

        merge: function merge (first, second) {
            /* Merge the second object into the first one.
             */
            for (var k in second) {
                if (_.isObject(first[k])) {
                    merge(first[k], second[k]);
                } else {
                    first[k] = second[k];
                }
            }
        },

        applyUserSettings: function applyUserSettings (context, settings, user_settings) {
            /* Configuration settings might be nested objects. We only want to
             * add settings which are whitelisted.
             */
            for (var k in settings) {
                if (_.isUndefined(user_settings[k])) {
                    continue;
                }
                if (_.isObject(settings[k]) && !_.isArray(settings[k])) {
                    applyUserSettings(context[k], settings[k], user_settings[k]);
                } else {
                    context[k] = user_settings[k];
                }
            }
        },

        refreshWebkit: function () {
            /* This works around a webkit bug. Refreshes the browser's viewport,
             * otherwise chatboxes are not moved along when one is closed.
             */
            if ($.browser.webkit && window.requestAnimationFrame) {
                window.requestAnimationFrame(function () {
                    var conversejs = document.getElementById('conversejs');
                    conversejs.style.display = 'none';
                    var tmp = conversejs.offsetHeight; // jshint ignore:line
                    conversejs.style.display = 'block';
                });
            }
        },

        webForm2xForm: function (field) {
            /* Takes an HTML DOM and turns it into an XForm field.
            *
            * Parameters:
            *      (DOMElement) field - the field to convert
            */
            var $input = $(field), value;
            if ($input.is('[type=checkbox]')) {
                value = $input.is(':checked') && 1 || 0;
            } else if ($input.is('textarea')) {
                value = [];
                var lines = $input.val().split('\n');
                for( var vk=0; vk<lines.length; vk++) {
                    var val = $.trim(lines[vk]);
                    if (val === '')
                        continue;
                    value.push(val);
                }
            } else {
                value = $input.val();
            }
            return $(tpl_field({
                name: $input.attr('name'),
                value: value
            }))[0];
        },

        contains: function (attr, query) {
            return function (item) {
                if (typeof attr === 'object') {
                    var value = false;
                    _.forEach(attr, function (a) {
                        value = value || _.includes(item.get(a).toLowerCase(), query.toLowerCase());
                    });
                    return value;
                } else if (typeof attr === 'string') {
                    return _.includes(item.get(attr).toLowerCase(), query.toLowerCase());
                } else {
                    throw new TypeError('contains: wrong attribute type. Must be string or array.');
                }
            };
        },

        xForm2webForm: function ($field, $stanza) {
            /* Takes a field in XMPP XForm (XEP-004: Data Forms) format
            * and turns it into a HTML DOM field.
            *
            *  Parameters:
            *      (XMLElement) field - the field to convert
            */

            // FIXME: take <required> into consideration
            var options = [], j, $options, $values, value, values;

            if ($field.attr('type') === 'list-single' || $field.attr('type') === 'list-multi') {
                values = [];
                $values = $field.children('value');
                for (j=0; j<$values.length; j++) {
                    values.push($($values[j]).text());
                }
                $options = $field.children('option');
                for (j=0; j<$options.length; j++) {
                    value = $($options[j]).find('value').text();
                    options.push(tpl_select_option({
                        value: value,
                        label: $($options[j]).attr('label'),
                        selected: _.startsWith(values, value),
                        required: $field.find('required').length
                    }));
                }
                return tpl_form_select({
                    name: $field.attr('var'),
                    label: $field.attr('label'),
                    options: options.join(''),
                    multiple: ($field.attr('type') === 'list-multi'),
                    required: $field.find('required').length
                });
            } else if ($field.attr('type') === 'fixed') {
                return $('<p class="form-help">').text($field.find('value').text());
            } else if ($field.attr('type') === 'jid-multi') {
                return tpl_form_textarea({
                    name: $field.attr('var'),
                    label: $field.attr('label') || '',
                    value: $field.find('value').text(),
                    required: $field.find('required').length
                });
            } else if ($field.attr('type') === 'boolean') {
                return tpl_form_checkbox({
                    name: $field.attr('var'),
                    type: XFORM_TYPE_MAP[$field.attr('type')],
                    label: $field.attr('label') || '',
                    checked: $field.find('value').text() === "1" && 'checked="1"' || '',
                    required: $field.find('required').length
                });
            } else if ($field.attr('type') && $field.attr('var') === 'username') {
                return tpl_form_username({
                    domain: ' @'+this.domain,
                    name: $field.attr('var'),
                    type: XFORM_TYPE_MAP[$field.attr('type')],
                    label: $field.attr('label') || '',
                    value: $field.find('value').text(),
                    required: $field.find('required').length
                });
            } else if ($field.attr('type')) {
                return tpl_form_input({
                    name: $field.attr('var'),
                    type: XFORM_TYPE_MAP[$field.attr('type')],
                    label: $field.attr('label') || '',
                    value: $field.find('value').text(),
                    required: $field.find('required').length
                });
            } else {
                if ($field.attr('var') === 'ocr') { // Captcha
                    return _.reduce(_.map($field.find('uri'),
                            $.proxy(function (uri) {
                                return tpl_form_captcha({
                                    label: this.$field.attr('label'),
                                    name: this.$field.attr('var'),
                                    data: this.$stanza.find('data[cid="'+uri.textContent.replace(/^cid:/, '')+'"]').text(),
                                    type: uri.getAttribute('type'),
                                    required: this.$field.find('required').length
                                });
                            }, {'$stanza': $stanza, '$field': $field})
                        ),
                        function (memo, num) { return memo + num; }, ''
                    );
                }
            }
        }
    };

    utils.detectLocale = function (library_check) {
        /* Determine which locale is supported by the user's system as well
         * as by the relevant library (e.g. converse.js or moment.js).
         *
         * Parameters:
         *      (Function) library_check - returns a boolean indicating whether
         *          the locale is supported.
         */
        var locale, i;
        if (window.navigator.userLanguage) {
            locale = utils.isLocaleAvailable(window.navigator.userLanguage, library_check);
        }
        if (window.navigator.languages && !locale) {
            for (i=0; i<window.navigator.languages.length && !locale; i++) {
                locale = utils.isLocaleAvailable(window.navigator.languages[i], library_check);
            }
        }
        if (window.navigator.browserLanguage && !locale) {
            locale = utils.isLocaleAvailable(window.navigator.browserLanguage, library_check);
        }
        if (window.navigator.language && !locale) {
            locale = utils.isLocaleAvailable(window.navigator.language, library_check);
        }
        if (window.navigator.systemLanguage && !locale) {
            locale = utils.isLocaleAvailable(window.navigator.systemLanguage, library_check);
        }
        return locale || 'en';
    };

    utils.isConverseLocale = function (locale) {
        if (!_.isString(locale)) { return false; }
        return _.includes(_.keys(locales || {}), locale)
    };

    utils.isMomentLocale  = function (locale) {
        if (!_.isString(locale)) { return false; }
        return moment.locale() !== moment.locale(locale);
    }

    utils.getLocale = function (preferred_locale, isSupportedByLibrary) {
        if (_.isString(preferred_locale)) {
            if (preferred_locale === 'en' || isSupportedByLibrary(preferred_locale)) {
                return preferred_locale;
            }
            try {
                var obj = window.JSON.parse(preferred_locale);
                return obj.locale_data.converse[""].lang;
            } catch (e) {
                console.log(e);
            }
        }
        return utils.detectLocale(isSupportedByLibrary) || 'en';
    };

    utils.contains.not = function (attr, query) {
        return function (item) {
            return !(utils.contains(attr, query)(item));
        };
    };

    utils.createElementsFromString = function (element, html) {
        // http://stackoverflow.com/questions/9334645/create-node-from-markup-string
        var frag = document.createDocumentFragment(),
            tmp = document.createElement('body'), child;
        tmp.innerHTML = html;
        // Append elements in a loop to a DocumentFragment, so that the browser does
        // not re-render the document for each node
        while (child = tmp.firstChild) {  // eslint-disable-line no-cond-assign
            frag.appendChild(child);
        }
        element.appendChild(frag); // Now, append all elements at once
        frag = tmp = null;
    }

    return utils;
}));

/** File: strophe.js
 *  A JavaScript library for writing XMPP clients.
 *
 *  This library uses either Bidirectional-streams Over Synchronous HTTP (BOSH)
 *  to emulate a persistent, stateful, two-way connection to an XMPP server or
 *  alternatively WebSockets.
 *
 *  More information on BOSH can be found in XEP 124.
 *  For more information on XMPP-over WebSocket see this RFC:
 *  http://tools.ietf.org/html/rfc7395
 */

/* All of the Strophe globals are defined in this special function below so
 * that references to the globals become closures.  This will ensure that
 * on page reload, these references will still be available to callbacks
 * that are still executing.
 */

/* jshint ignore:start */
(function (root, factory) {
    if (typeof define === 'function' && define.amd) {
        //Allow using this built library as an AMD module
        //in another project. That other project will only
        //see this AMD call, not the internal modules in
        //the closure below.
        define('strophe',[], factory);
    } else {
        //Browser globals case.
        var wrapper = factory();
        root.Strophe        = wrapper.Strophe;
        root.$build         = wrapper.$build;
        root.$iq            = wrapper.$iq;
        root.$msg           = wrapper.$msg;
        root.$pres          = wrapper.$pres;
        root.SHA1           = wrapper.SHA1;
        root.MD5            = wrapper.MD5;
        root.b64_hmac_sha1  = wrapper.b64_hmac_sha1;
        root.b64_sha1       = wrapper.b64_sha1;
        root.str_hmac_sha1  = wrapper.str_hmac_sha1;
        root.str_sha1       = wrapper.str_sha1;
    }
}(this, function () {
    //almond, and your modules will be inlined here
/* jshint ignore:end */
/**
 * @license almond 0.3.3 Copyright jQuery Foundation and other contributors.
 * Released under MIT license, http://github.com/requirejs/almond/LICENSE
 */
//Going sloppy to avoid 'use strict' string cost, but strict practices should
//be followed.
/*global setTimeout: false */

var requirejs, require, define;
(function (undef) {
    var main, req, makeMap, handlers,
        defined = {},
        waiting = {},
        config = {},
        defining = {},
        hasOwn = Object.prototype.hasOwnProperty,
        aps = [].slice,
        jsSuffixRegExp = /\.js$/;

    function hasProp(obj, prop) {
        return hasOwn.call(obj, prop);
    }

    /**
     * Given a relative module name, like ./something, normalize it to
     * a real name that can be mapped to a path.
     * @param {String} name the relative name
     * @param {String} baseName a real name that the name arg is relative
     * to.
     * @returns {String} normalized name
     */
    function normalize(name, baseName) {
        var nameParts, nameSegment, mapValue, foundMap, lastIndex,
            foundI, foundStarMap, starI, i, j, part, normalizedBaseParts,
            baseParts = baseName && baseName.split("/"),
            map = config.map,
            starMap = (map && map['*']) || {};

        //Adjust any relative paths.
        if (name) {
            name = name.split('/');
            lastIndex = name.length - 1;

            // If wanting node ID compatibility, strip .js from end
            // of IDs. Have to do this here, and not in nameToUrl
            // because node allows either .js or non .js to map
            // to same file.
            if (config.nodeIdCompat && jsSuffixRegExp.test(name[lastIndex])) {
                name[lastIndex] = name[lastIndex].replace(jsSuffixRegExp, '');
            }

            // Starts with a '.' so need the baseName
            if (name[0].charAt(0) === '.' && baseParts) {
                //Convert baseName to array, and lop off the last part,
                //so that . matches that 'directory' and not name of the baseName's
                //module. For instance, baseName of 'one/two/three', maps to
                //'one/two/three.js', but we want the directory, 'one/two' for
                //this normalization.
                normalizedBaseParts = baseParts.slice(0, baseParts.length - 1);
                name = normalizedBaseParts.concat(name);
            }

            //start trimDots
            for (i = 0; i < name.length; i++) {
                part = name[i];
                if (part === '.') {
                    name.splice(i, 1);
                    i -= 1;
                } else if (part === '..') {
                    // If at the start, or previous value is still ..,
                    // keep them so that when converted to a path it may
                    // still work when converted to a path, even though
                    // as an ID it is less than ideal. In larger point
                    // releases, may be better to just kick out an error.
                    if (i === 0 || (i === 1 && name[2] === '..') || name[i - 1] === '..') {
                        continue;
                    } else if (i > 0) {
                        name.splice(i - 1, 2);
                        i -= 2;
                    }
                }
            }
            //end trimDots

            name = name.join('/');
        }

        //Apply map config if available.
        if ((baseParts || starMap) && map) {
            nameParts = name.split('/');

            for (i = nameParts.length; i > 0; i -= 1) {
                nameSegment = nameParts.slice(0, i).join("/");

                if (baseParts) {
                    //Find the longest baseName segment match in the config.
                    //So, do joins on the biggest to smallest lengths of baseParts.
                    for (j = baseParts.length; j > 0; j -= 1) {
                        mapValue = map[baseParts.slice(0, j).join('/')];

                        //baseName segment has  config, find if it has one for
                        //this name.
                        if (mapValue) {
                            mapValue = mapValue[nameSegment];
                            if (mapValue) {
                                //Match, update name to the new value.
                                foundMap = mapValue;
                                foundI = i;
                                break;
                            }
                        }
                    }
                }

                if (foundMap) {
                    break;
                }

                //Check for a star map match, but just hold on to it,
                //if there is a shorter segment match later in a matching
                //config, then favor over this star map.
                if (!foundStarMap && starMap && starMap[nameSegment]) {
                    foundStarMap = starMap[nameSegment];
                    starI = i;
                }
            }

            if (!foundMap && foundStarMap) {
                foundMap = foundStarMap;
                foundI = starI;
            }

            if (foundMap) {
                nameParts.splice(0, foundI, foundMap);
                name = nameParts.join('/');
            }
        }

        return name;
    }

    function makeRequire(relName, forceSync) {
        return function () {
            //A version of a require function that passes a moduleName
            //value for items that may need to
            //look up paths relative to the moduleName
            var args = aps.call(arguments, 0);

            //If first arg is not require('string'), and there is only
            //one arg, it is the array form without a callback. Insert
            //a null so that the following concat is correct.
            if (typeof args[0] !== 'string' && args.length === 1) {
                args.push(null);
            }
            return req.apply(undef, args.concat([relName, forceSync]));
        };
    }

    function makeNormalize(relName) {
        return function (name) {
            return normalize(name, relName);
        };
    }

    function makeLoad(depName) {
        return function (value) {
            defined[depName] = value;
        };
    }

    function callDep(name) {
        if (hasProp(waiting, name)) {
            var args = waiting[name];
            delete waiting[name];
            defining[name] = true;
            main.apply(undef, args);
        }

        if (!hasProp(defined, name) && !hasProp(defining, name)) {
            throw new Error('No ' + name);
        }
        return defined[name];
    }

    //Turns a plugin!resource to [plugin, resource]
    //with the plugin being undefined if the name
    //did not have a plugin prefix.
    function splitPrefix(name) {
        var prefix,
            index = name ? name.indexOf('!') : -1;
        if (index > -1) {
            prefix = name.substring(0, index);
            name = name.substring(index + 1, name.length);
        }
        return [prefix, name];
    }

    //Creates a parts array for a relName where first part is plugin ID,
    //second part is resource ID. Assumes relName has already been normalized.
    function makeRelParts(relName) {
        return relName ? splitPrefix(relName) : [];
    }

    /**
     * Makes a name map, normalizing the name, and using a plugin
     * for normalization if necessary. Grabs a ref to plugin
     * too, as an optimization.
     */
    makeMap = function (name, relParts) {
        var plugin,
            parts = splitPrefix(name),
            prefix = parts[0],
            relResourceName = relParts[1];

        name = parts[1];

        if (prefix) {
            prefix = normalize(prefix, relResourceName);
            plugin = callDep(prefix);
        }

        //Normalize according
        if (prefix) {
            if (plugin && plugin.normalize) {
                name = plugin.normalize(name, makeNormalize(relResourceName));
            } else {
                name = normalize(name, relResourceName);
            }
        } else {
            name = normalize(name, relResourceName);
            parts = splitPrefix(name);
            prefix = parts[0];
            name = parts[1];
            if (prefix) {
                plugin = callDep(prefix);
            }
        }

        //Using ridiculous property names for space reasons
        return {
            f: prefix ? prefix + '!' + name : name, //fullName
            n: name,
            pr: prefix,
            p: plugin
        };
    };

    function makeConfig(name) {
        return function () {
            return (config && config.config && config.config[name]) || {};
        };
    }

    handlers = {
        require: function (name) {
            return makeRequire(name);
        },
        exports: function (name) {
            var e = defined[name];
            if (typeof e !== 'undefined') {
                return e;
            } else {
                return (defined[name] = {});
            }
        },
        module: function (name) {
            return {
                id: name,
                uri: '',
                exports: defined[name],
                config: makeConfig(name)
            };
        }
    };

    main = function (name, deps, callback, relName) {
        var cjsModule, depName, ret, map, i, relParts,
            args = [],
            callbackType = typeof callback,
            usingExports;

        //Use name if no relName
        relName = relName || name;
        relParts = makeRelParts(relName);

        //Call the callback to define the module, if necessary.
        if (callbackType === 'undefined' || callbackType === 'function') {
            //Pull out the defined dependencies and pass the ordered
            //values to the callback.
            //Default to [require, exports, module] if no deps
            deps = !deps.length && callback.length ? ['require', 'exports', 'module'] : deps;
            for (i = 0; i < deps.length; i += 1) {
                map = makeMap(deps[i], relParts);
                depName = map.f;

                //Fast path CommonJS standard dependencies.
                if (depName === "require") {
                    args[i] = handlers.require(name);
                } else if (depName === "exports") {
                    //CommonJS module spec 1.1
                    args[i] = handlers.exports(name);
                    usingExports = true;
                } else if (depName === "module") {
                    //CommonJS module spec 1.1
                    cjsModule = args[i] = handlers.module(name);
                } else if (hasProp(defined, depName) ||
                           hasProp(waiting, depName) ||
                           hasProp(defining, depName)) {
                    args[i] = callDep(depName);
                } else if (map.p) {
                    map.p.load(map.n, makeRequire(relName, true), makeLoad(depName), {});
                    args[i] = defined[depName];
                } else {
                    throw new Error(name + ' missing ' + depName);
                }
            }

            ret = callback ? callback.apply(defined[name], args) : undefined;

            if (name) {
                //If setting exports via "module" is in play,
                //favor that over return value and exports. After that,
                //favor a non-undefined return value over exports use.
                if (cjsModule && cjsModule.exports !== undef &&
                        cjsModule.exports !== defined[name]) {
                    defined[name] = cjsModule.exports;
                } else if (ret !== undef || !usingExports) {
                    //Use the return value from the function.
                    defined[name] = ret;
                }
            }
        } else if (name) {
            //May just be an object definition for the module. Only
            //worry about defining if have a module name.
            defined[name] = callback;
        }
    };

    requirejs = require = req = function (deps, callback, relName, forceSync, alt) {
        if (typeof deps === "string") {
            if (handlers[deps]) {
                //callback in this case is really relName
                return handlers[deps](callback);
            }
            //Just return the module wanted. In this scenario, the
            //deps arg is the module name, and second arg (if passed)
            //is just the relName.
            //Normalize module name, if it contains . or ..
            return callDep(makeMap(deps, makeRelParts(callback)).f);
        } else if (!deps.splice) {
            //deps is a config object, not an array.
            config = deps;
            if (config.deps) {
                req(config.deps, config.callback);
            }
            if (!callback) {
                return;
            }

            if (callback.splice) {
                //callback is an array, which means it is a dependency list.
                //Adjust args if there are dependencies
                deps = callback;
                callback = relName;
                relName = null;
            } else {
                deps = undef;
            }
        }

        //Support require(['a'])
        callback = callback || function () {};

        //If relName is a function, it is an errback handler,
        //so remove it.
        if (typeof relName === 'function') {
            relName = forceSync;
            forceSync = alt;
        }

        //Simulate async callback;
        if (forceSync) {
            main(undef, deps, callback, relName);
        } else {
            //Using a non-zero value because of concern for what old browsers
            //do, and latest browsers "upgrade" to 4 if lower value is used:
            //http://www.whatwg.org/specs/web-apps/current-work/multipage/timers.html#dom-windowtimers-settimeout:
            //If want a value immediately, use require('id') instead -- something
            //that works in almond on the global level, but not guaranteed and
            //unlikely to work in other AMD implementations.
            setTimeout(function () {
                main(undef, deps, callback, relName);
            }, 4);
        }

        return req;
    };

    /**
     * Just drops the config on the floor, but returns req in case
     * the config return value is used.
     */
    req.config = function (cfg) {
        return req(cfg);
    };

    /**
     * Expose module registry for debugging and tooling
     */
    requirejs._defined = defined;

    define = function (name, deps, callback) {
        if (typeof name !== 'string') {
            throw new Error('See almond README: incorrect module build, no module name');
        }

        //This module may not have dependencies
        if (!deps.splice) {
            //deps is not an array, so probably means
            //an object literal or factory function for
            //the value. Adjust args.
            callback = deps;
            deps = [];
        }

        if (!hasProp(defined, name) && !hasProp(waiting, name)) {
            waiting[name] = [name, deps, callback];
        }
    };

    define.amd = {
        jQuery: true
    };
}());

define("bower_components/almond/almond.js", function(){});

/*
    This program is distributed under the terms of the MIT license.
    Please see the LICENSE file for details.

    Copyright 2006-2008, OGG, LLC
*/
/* jshint undef: true, unused: true:, noarg: true, latedef: true */
/* global define */

(function (root, factory) {
    if (typeof define === 'function' && define.amd) {
        define('strophe-polyfill',[], function () {
            return factory(root);
        });
    } else {
        // Browser globals
        return factory(root);
    }
}(this, function (root) {

/** Function: Function.prototype.bind
 *  Bind a function to an instance.
 *
 *  This Function object extension method creates a bound method similar
 *  to those in Python.  This means that the 'this' object will point
 *  to the instance you want.  See <MDC's bind() documentation at https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Function/bind>
 *  and <Bound Functions and Function Imports in JavaScript at http://benjamin.smedbergs.us/blog/2007-01-03/bound-functions-and-function-imports-in-javascript/>
 *  for a complete explanation.
 *
 *  This extension already exists in some browsers (namely, Firefox 3), but
 *  we provide it to support those that don't.
 *
 *  Parameters:
 *    (Object) obj - The object that will become 'this' in the bound function.
 *    (Object) argN - An option argument that will be prepended to the
 *      arguments given for the function call
 *
 *  Returns:
 *    The bound function.
 */
if (!Function.prototype.bind) {
    Function.prototype.bind = function (obj /*, arg1, arg2, ... */) {
        var func = this;
        var _slice = Array.prototype.slice;
        var _concat = Array.prototype.concat;
        var _args = _slice.call(arguments, 1);
        return function () {
            return func.apply(obj ? obj : this, _concat.call(_args, _slice.call(arguments, 0)));
        };
    };
}

/** Function: Array.isArray
 *  This is a polyfill for the ES5 Array.isArray method.
 */
if (!Array.isArray) {
    Array.isArray = function(arg) {
        return Object.prototype.toString.call(arg) === '[object Array]';
    };
}

/** Function: Array.prototype.indexOf
 *  Return the index of an object in an array.
 *
 *  This function is not supplied by some JavaScript implementations, so
 *  we provide it if it is missing.  This code is from:
 *  http://developer.mozilla.org/En/Core_JavaScript_1.5_Reference:Objects:Array:indexOf
 *
 *  Parameters:
 *    (Object) elt - The object to look for.
 *    (Integer) from - The index from which to start looking. (optional).
 *
 *  Returns:
 *    The index of elt in the array or -1 if not found.
 */
if (!Array.prototype.indexOf) {
    Array.prototype.indexOf = function(elt /*, from*/) {
        var len = this.length;
        var from = Number(arguments[1]) || 0;
        from = (from < 0) ? Math.ceil(from) : Math.floor(from);
        if (from < 0) {
            from += len;
        }

        for (; from < len; from++) {
            if (from in this && this[from] === elt) {
                return from;
            }
        }
        return -1;
    };
}

/** Function: Array.prototype.forEach
 *
 *  This function is not available in IE < 9
 *
 *  See <forEach on developer.mozilla.org at https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/forEach>
 */
if (!Array.prototype.forEach) {
    Array.prototype.forEach = function(callback, thisArg) {
        var T, k;
        if (this === null) {
            throw new TypeError(' this is null or not defined');
        }
        // 1. Let O be the result of calling toObject() passing the
        // |this| value as the argument.
        var O = Object(this);
        // 2. Let lenValue be the result of calling the Get() internal
        // method of O with the argument "length".
        // 3. Let len be toUint32(lenValue).
        var len = O.length >>> 0;
        // 4. If isCallable(callback) is false, throw a TypeError exception.
        // See: http://es5.github.com/#x9.11
        if (typeof callback !== "function") {
            throw new TypeError(callback + ' is not a function');
        }
        // 5. If thisArg was supplied, let T be thisArg; else let
        // T be undefined.
        if (arguments.length > 1) {
            T = thisArg;
        }
        // 6. Let k be 0
        k = 0;
        // 7. Repeat, while k < len
        while (k < len) {
            var kValue;
            // a. Let Pk be ToString(k).
            //        This is implicit for LHS operands of the in operator
            // b. Let kPresent be the result of calling the HasProperty
            //        internal method of O with argument Pk.
            //        This step can be combined with c
            // c. If kPresent is true, then
            if (k in O) {
                // i. Let kValue be the result of calling the Get internal
                // method of O with argument Pk.
                kValue = O[k];
                // ii. Call the Call internal method of callback with T as
                // the this value and argument list containing kValue, k, and O.
                callback.call(T, kValue, k, O);
            }
            // d. Increase k by 1.
            k++;
        }
        // 8. return undefined
    };
}

// This code was written by Tyler Akins and has been placed in the
// public domain.  It would be nice if you left this header intact.
// Base64 code from Tyler Akins -- http://rumkin.com
var keyStr = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
if (!root.btoa) {
    root.btoa = function (input) {
        /**
         * Encodes a string in base64
         * @param {String} input The string to encode in base64.
         */
        var output = "";
        var chr1, chr2, chr3;
        var enc1, enc2, enc3, enc4;
        var i = 0;
        do {
            chr1 = input.charCodeAt(i++);
            chr2 = input.charCodeAt(i++);
            chr3 = input.charCodeAt(i++);

            enc1 = chr1 >> 2;
            enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
            enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
            enc4 = chr3 & 63;

            if (isNaN(chr2)) {
                enc2 = ((chr1 & 3) << 4);
                enc3 = enc4 = 64;
            } else if (isNaN(chr3)) {
                enc4 = 64;
            }
            output = output + keyStr.charAt(enc1) + keyStr.charAt(enc2) +
                keyStr.charAt(enc3) + keyStr.charAt(enc4);
        } while (i < input.length);
        return output;
    };
}

if (!root.atob) {
    root.atob = function (input) {
        /**
         * Decodes a base64 string.
         * @param {String} input The string to decode.
         */
        var output = "";
        var chr1, chr2, chr3;
        var enc1, enc2, enc3, enc4;
        var i = 0;
        // remove all characters that are not A-Z, a-z, 0-9, +, /, or =
        input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");
        do {
            enc1 = keyStr.indexOf(input.charAt(i++));
            enc2 = keyStr.indexOf(input.charAt(i++));
            enc3 = keyStr.indexOf(input.charAt(i++));
            enc4 = keyStr.indexOf(input.charAt(i++));

            chr1 = (enc1 << 2) | (enc2 >> 4);
            chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
            chr3 = ((enc3 & 3) << 6) | enc4;

            output = output + String.fromCharCode(chr1);

            if (enc3 !== 64) {
                output = output + String.fromCharCode(chr2);
            }
            if (enc4 !== 64) {
                output = output + String.fromCharCode(chr3);
            }
        } while (i < input.length);
        return output;
    };
}
}));

/*
 * A JavaScript implementation of the Secure Hash Algorithm, SHA-1, as defined
 * in FIPS PUB 180-1
 * Version 2.1a Copyright Paul Johnston 2000 - 2002.
 * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
 * Distributed under the BSD License
 * See http://pajhome.org.uk/crypt/md5 for details.
 */

/* jshint undef: true, unused: true:, noarg: true, latedef: false */
/* global define */

/* Some functions and variables have been stripped for use with Strophe */

(function (root, factory) {
    if (typeof define === 'function' && define.amd) {
        define('strophe-sha1', [],function () {
            return factory();
        });
    } else {
        // Browser globals
        root.SHA1 = factory();
    }
}(this, function () {

/*
 * Calculate the SHA-1 of an array of big-endian words, and a bit length
 */
function core_sha1(x, len)
{
  /* append padding */
  x[len >> 5] |= 0x80 << (24 - len % 32);
  x[((len + 64 >> 9) << 4) + 15] = len;

  var w = new Array(80);
  var a =  1732584193;
  var b = -271733879;
  var c = -1732584194;
  var d =  271733878;
  var e = -1009589776;

  var i, j, t, olda, oldb, oldc, oldd, olde;
  for (i = 0; i < x.length; i += 16)
  {
    olda = a;
    oldb = b;
    oldc = c;
    oldd = d;
    olde = e;

    for (j = 0; j < 80; j++)
    {
      if (j < 16) { w[j] = x[i + j]; }
      else { w[j] = rol(w[j-3] ^ w[j-8] ^ w[j-14] ^ w[j-16], 1); }
      t = safe_add(safe_add(rol(a, 5), sha1_ft(j, b, c, d)),
                       safe_add(safe_add(e, w[j]), sha1_kt(j)));
      e = d;
      d = c;
      c = rol(b, 30);
      b = a;
      a = t;
    }

    a = safe_add(a, olda);
    b = safe_add(b, oldb);
    c = safe_add(c, oldc);
    d = safe_add(d, oldd);
    e = safe_add(e, olde);
  }
  return [a, b, c, d, e];
}

/*
 * Perform the appropriate triplet combination function for the current
 * iteration
 */
function sha1_ft(t, b, c, d)
{
  if (t < 20) { return (b & c) | ((~b) & d); }
  if (t < 40) { return b ^ c ^ d; }
  if (t < 60) { return (b & c) | (b & d) | (c & d); }
  return b ^ c ^ d;
}

/*
 * Determine the appropriate additive constant for the current iteration
 */
function sha1_kt(t)
{
  return (t < 20) ?  1518500249 : (t < 40) ?  1859775393 :
         (t < 60) ? -1894007588 : -899497514;
}

/*
 * Calculate the HMAC-SHA1 of a key and some data
 */
function core_hmac_sha1(key, data)
{
  var bkey = str2binb(key);
  if (bkey.length > 16) { bkey = core_sha1(bkey, key.length * 8); }

  var ipad = new Array(16), opad = new Array(16);
  for (var i = 0; i < 16; i++)
  {
    ipad[i] = bkey[i] ^ 0x36363636;
    opad[i] = bkey[i] ^ 0x5C5C5C5C;
  }

  var hash = core_sha1(ipad.concat(str2binb(data)), 512 + data.length * 8);
  return core_sha1(opad.concat(hash), 512 + 160);
}

/*
 * Add integers, wrapping at 2^32. This uses 16-bit operations internally
 * to work around bugs in some JS interpreters.
 */
function safe_add(x, y)
{
  var lsw = (x & 0xFFFF) + (y & 0xFFFF);
  var msw = (x >> 16) + (y >> 16) + (lsw >> 16);
  return (msw << 16) | (lsw & 0xFFFF);
}

/*
 * Bitwise rotate a 32-bit number to the left.
 */
function rol(num, cnt)
{
  return (num << cnt) | (num >>> (32 - cnt));
}

/*
 * Convert an 8-bit or 16-bit string to an array of big-endian words
 * In 8-bit function, characters >255 have their hi-byte silently ignored.
 */
function str2binb(str)
{
  var bin = [];
  var mask = 255;
  for (var i = 0; i < str.length * 8; i += 8)
  {
    bin[i>>5] |= (str.charCodeAt(i / 8) & mask) << (24 - i%32);
  }
  return bin;
}

/*
 * Convert an array of big-endian words to a string
 */
function binb2str(bin)
{
  var str = "";
  var mask = 255;
  for (var i = 0; i < bin.length * 32; i += 8)
  {
    str += String.fromCharCode((bin[i>>5] >>> (24 - i%32)) & mask);
  }
  return str;
}

/*
 * Convert an array of big-endian words to a base-64 string
 */
function binb2b64(binarray)
{
  var tab = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
  var str = "";
  var triplet, j;
  for (var i = 0; i < binarray.length * 4; i += 3)
  {
    triplet = (((binarray[i   >> 2] >> 8 * (3 -  i   %4)) & 0xFF) << 16) |
              (((binarray[i+1 >> 2] >> 8 * (3 - (i+1)%4)) & 0xFF) << 8 ) |
               ((binarray[i+2 >> 2] >> 8 * (3 - (i+2)%4)) & 0xFF);
    for (j = 0; j < 4; j++)
    {
      if (i * 8 + j * 6 > binarray.length * 32) { str += "="; }
      else { str += tab.charAt((triplet >> 6*(3-j)) & 0x3F); }
    }
  }
  return str;
}

/*
 * These are the functions you'll usually want to call
 * They take string arguments and return either hex or base-64 encoded strings
 */
return {
    b64_hmac_sha1:  function (key, data){ return binb2b64(core_hmac_sha1(key, data)); },
    b64_sha1:       function (s) { return binb2b64(core_sha1(str2binb(s),s.length * 8)); },
    binb2str:       binb2str,
    core_hmac_sha1: core_hmac_sha1,
    str_hmac_sha1:  function (key, data){ return binb2str(core_hmac_sha1(key, data)); },
    str_sha1:       function (s) { return binb2str(core_sha1(str2binb(s),s.length * 8)); },
};
}));

/*
 * A JavaScript implementation of the RSA Data Security, Inc. MD5 Message
 * Digest Algorithm, as defined in RFC 1321.
 * Version 2.1 Copyright (C) Paul Johnston 1999 - 2002.
 * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
 * Distributed under the BSD License
 * See http://pajhome.org.uk/crypt/md5 for more info.
 */
/*
 * Everything that isn't used by Strophe has been stripped here!
 */

(function (root, factory) {
    if (typeof define === 'function' && define.amd) {
        define('strophe-md5',[], function () {
            return factory();
        });
    } else {
        // Browser globals
        root.MD5 = factory();
    }
}(this, function () {
    /*
     * Add integers, wrapping at 2^32. This uses 16-bit operations internally
     * to work around bugs in some JS interpreters.
     */
    var safe_add = function (x, y) {
        var lsw = (x & 0xFFFF) + (y & 0xFFFF);
        var msw = (x >> 16) + (y >> 16) + (lsw >> 16);
        return (msw << 16) | (lsw & 0xFFFF);
    };

    /*
     * Bitwise rotate a 32-bit number to the left.
     */
    var bit_rol = function (num, cnt) {
        return (num << cnt) | (num >>> (32 - cnt));
    };

    /*
     * Convert a string to an array of little-endian words
     */
    var str2binl = function (str) {
        var bin = [];
        for(var i = 0; i < str.length * 8; i += 8)
        {
            bin[i>>5] |= (str.charCodeAt(i / 8) & 255) << (i%32);
        }
        return bin;
    };

    /*
     * Convert an array of little-endian words to a string
     */
    var binl2str = function (bin) {
        var str = "";
        for(var i = 0; i < bin.length * 32; i += 8)
        {
            str += String.fromCharCode((bin[i>>5] >>> (i % 32)) & 255);
        }
        return str;
    };

    /*
     * Convert an array of little-endian words to a hex string.
     */
    var binl2hex = function (binarray) {
        var hex_tab = "0123456789abcdef";
        var str = "";
        for(var i = 0; i < binarray.length * 4; i++)
        {
            str += hex_tab.charAt((binarray[i>>2] >> ((i%4)*8+4)) & 0xF) +
                hex_tab.charAt((binarray[i>>2] >> ((i%4)*8  )) & 0xF);
        }
        return str;
    };

    /*
     * These functions implement the four basic operations the algorithm uses.
     */
    var md5_cmn = function (q, a, b, x, s, t) {
        return safe_add(bit_rol(safe_add(safe_add(a, q),safe_add(x, t)), s),b);
    };

    var md5_ff = function (a, b, c, d, x, s, t) {
        return md5_cmn((b & c) | ((~b) & d), a, b, x, s, t);
    };

    var md5_gg = function (a, b, c, d, x, s, t) {
        return md5_cmn((b & d) | (c & (~d)), a, b, x, s, t);
    };

    var md5_hh = function (a, b, c, d, x, s, t) {
        return md5_cmn(b ^ c ^ d, a, b, x, s, t);
    };

    var md5_ii = function (a, b, c, d, x, s, t) {
        return md5_cmn(c ^ (b | (~d)), a, b, x, s, t);
    };

    /*
     * Calculate the MD5 of an array of little-endian words, and a bit length
     */
    var core_md5 = function (x, len) {
        /* append padding */
        x[len >> 5] |= 0x80 << ((len) % 32);
        x[(((len + 64) >>> 9) << 4) + 14] = len;

        var a =  1732584193;
        var b = -271733879;
        var c = -1732584194;
        var d =  271733878;

        var olda, oldb, oldc, oldd;
        for (var i = 0; i < x.length; i += 16)
        {
            olda = a;
            oldb = b;
            oldc = c;
            oldd = d;

            a = md5_ff(a, b, c, d, x[i+ 0], 7 , -680876936);
            d = md5_ff(d, a, b, c, x[i+ 1], 12, -389564586);
            c = md5_ff(c, d, a, b, x[i+ 2], 17,  606105819);
            b = md5_ff(b, c, d, a, x[i+ 3], 22, -1044525330);
            a = md5_ff(a, b, c, d, x[i+ 4], 7 , -176418897);
            d = md5_ff(d, a, b, c, x[i+ 5], 12,  1200080426);
            c = md5_ff(c, d, a, b, x[i+ 6], 17, -1473231341);
            b = md5_ff(b, c, d, a, x[i+ 7], 22, -45705983);
            a = md5_ff(a, b, c, d, x[i+ 8], 7 ,  1770035416);
            d = md5_ff(d, a, b, c, x[i+ 9], 12, -1958414417);
            c = md5_ff(c, d, a, b, x[i+10], 17, -42063);
            b = md5_ff(b, c, d, a, x[i+11], 22, -1990404162);
            a = md5_ff(a, b, c, d, x[i+12], 7 ,  1804603682);
            d = md5_ff(d, a, b, c, x[i+13], 12, -40341101);
            c = md5_ff(c, d, a, b, x[i+14], 17, -1502002290);
            b = md5_ff(b, c, d, a, x[i+15], 22,  1236535329);

            a = md5_gg(a, b, c, d, x[i+ 1], 5 , -165796510);
            d = md5_gg(d, a, b, c, x[i+ 6], 9 , -1069501632);
            c = md5_gg(c, d, a, b, x[i+11], 14,  643717713);
            b = md5_gg(b, c, d, a, x[i+ 0], 20, -373897302);
            a = md5_gg(a, b, c, d, x[i+ 5], 5 , -701558691);
            d = md5_gg(d, a, b, c, x[i+10], 9 ,  38016083);
            c = md5_gg(c, d, a, b, x[i+15], 14, -660478335);
            b = md5_gg(b, c, d, a, x[i+ 4], 20, -405537848);
            a = md5_gg(a, b, c, d, x[i+ 9], 5 ,  568446438);
            d = md5_gg(d, a, b, c, x[i+14], 9 , -1019803690);
            c = md5_gg(c, d, a, b, x[i+ 3], 14, -187363961);
            b = md5_gg(b, c, d, a, x[i+ 8], 20,  1163531501);
            a = md5_gg(a, b, c, d, x[i+13], 5 , -1444681467);
            d = md5_gg(d, a, b, c, x[i+ 2], 9 , -51403784);
            c = md5_gg(c, d, a, b, x[i+ 7], 14,  1735328473);
            b = md5_gg(b, c, d, a, x[i+12], 20, -1926607734);

            a = md5_hh(a, b, c, d, x[i+ 5], 4 , -378558);
            d = md5_hh(d, a, b, c, x[i+ 8], 11, -2022574463);
            c = md5_hh(c, d, a, b, x[i+11], 16,  1839030562);
            b = md5_hh(b, c, d, a, x[i+14], 23, -35309556);
            a = md5_hh(a, b, c, d, x[i+ 1], 4 , -1530992060);
            d = md5_hh(d, a, b, c, x[i+ 4], 11,  1272893353);
            c = md5_hh(c, d, a, b, x[i+ 7], 16, -155497632);
            b = md5_hh(b, c, d, a, x[i+10], 23, -1094730640);
            a = md5_hh(a, b, c, d, x[i+13], 4 ,  681279174);
            d = md5_hh(d, a, b, c, x[i+ 0], 11, -358537222);
            c = md5_hh(c, d, a, b, x[i+ 3], 16, -722521979);
            b = md5_hh(b, c, d, a, x[i+ 6], 23,  76029189);
            a = md5_hh(a, b, c, d, x[i+ 9], 4 , -640364487);
            d = md5_hh(d, a, b, c, x[i+12], 11, -421815835);
            c = md5_hh(c, d, a, b, x[i+15], 16,  530742520);
            b = md5_hh(b, c, d, a, x[i+ 2], 23, -995338651);

            a = md5_ii(a, b, c, d, x[i+ 0], 6 , -198630844);
            d = md5_ii(d, a, b, c, x[i+ 7], 10,  1126891415);
            c = md5_ii(c, d, a, b, x[i+14], 15, -1416354905);
            b = md5_ii(b, c, d, a, x[i+ 5], 21, -57434055);
            a = md5_ii(a, b, c, d, x[i+12], 6 ,  1700485571);
            d = md5_ii(d, a, b, c, x[i+ 3], 10, -1894986606);
            c = md5_ii(c, d, a, b, x[i+10], 15, -1051523);
            b = md5_ii(b, c, d, a, x[i+ 1], 21, -2054922799);
            a = md5_ii(a, b, c, d, x[i+ 8], 6 ,  1873313359);
            d = md5_ii(d, a, b, c, x[i+15], 10, -30611744);
            c = md5_ii(c, d, a, b, x[i+ 6], 15, -1560198380);
            b = md5_ii(b, c, d, a, x[i+13], 21,  1309151649);
            a = md5_ii(a, b, c, d, x[i+ 4], 6 , -145523070);
            d = md5_ii(d, a, b, c, x[i+11], 10, -1120210379);
            c = md5_ii(c, d, a, b, x[i+ 2], 15,  718787259);
            b = md5_ii(b, c, d, a, x[i+ 9], 21, -343485551);

            a = safe_add(a, olda);
            b = safe_add(b, oldb);
            c = safe_add(c, oldc);
            d = safe_add(d, oldd);
        }
        return [a, b, c, d];
    };

    var obj = {
        /*
         * These are the functions you'll usually want to call.
         * They take string arguments and return either hex or base-64 encoded
         * strings.
         */
        hexdigest: function (s) {
            return binl2hex(core_md5(str2binl(s), s.length * 8));
        },

        hash: function (s) {
            return binl2str(core_md5(str2binl(s), s.length * 8));
        }
    };
    return obj;
}));

(function (root, factory) {
    if (typeof define === 'function' && define.amd) {
        define('strophe-utils',[], function () {
            return factory();
        });
    } else {
        // Browser globals
        root.stropheUtils = factory();
    }
}(this, function () {

    var utils = {

        utf16to8: function (str) {
            var i, c;
            var out = "";
            var len = str.length;
            for (i = 0; i < len; i++) {
                c = str.charCodeAt(i);
                if ((c >= 0x0000) && (c <= 0x007F)) {
                    out += str.charAt(i);
                } else if (c > 0x07FF) {
                    out += String.fromCharCode(0xE0 | ((c >> 12) & 0x0F));
                    out += String.fromCharCode(0x80 | ((c >>  6) & 0x3F));
                    out += String.fromCharCode(0x80 | ((c >>  0) & 0x3F));
                } else {
                    out += String.fromCharCode(0xC0 | ((c >>  6) & 0x1F));
                    out += String.fromCharCode(0x80 | ((c >>  0) & 0x3F));
                }
            }
            return out;
        },

        addCookies: function (cookies) {
            /* Parameters:
             *  (Object) cookies - either a map of cookie names
             *    to string values or to maps of cookie values.
             *
             * For example:
             * { "myCookie": "1234" }
             *
             * or:
             * { "myCookie": {
             *      "value": "1234",
             *      "domain": ".example.org",
             *      "path": "/",
             *      "expires": expirationDate
             *      }
             *  }
             *
             *  These values get passed to Strophe.Connection via
             *   options.cookies
             */
            var cookieName, cookieObj, isObj, cookieValue, expires, domain, path;
            for (cookieName in (cookies || {})) {
                expires = '';
                domain = '';
                path = '';
                cookieObj = cookies[cookieName];
                isObj = typeof cookieObj === "object";
                cookieValue = escape(unescape(isObj ? cookieObj.value : cookieObj));
                if (isObj) {
                    expires = cookieObj.expires ? ";expires="+cookieObj.expires : '';
                    domain = cookieObj.domain ? ";domain="+cookieObj.domain : '';
                    path = cookieObj.path ? ";path="+cookieObj.path : '';
                }
                document.cookie =
                    cookieName+'='+cookieValue + expires + domain + path;
            }
        }
    };
    return utils;
}));

/*
    This program is distributed under the terms of the MIT license.
    Please see the LICENSE file for details.

    Copyright 2006-2008, OGG, LLC
*/

/* jshint undef: true, unused: true:, noarg: true, latedef: true */
/*global define, document, sessionStorage, setTimeout, clearTimeout, ActiveXObject, DOMParser, btoa, atob */

(function (root, factory) {
    if (typeof define === 'function' && define.amd) {
        define('strophe-core',[
            'strophe-sha1',
            'strophe-md5',
            'strophe-utils'
        ], function () {
            return factory.apply(this, arguments);
        });
    } else {
        // Browser globals
        var o = factory(root.SHA1, root.MD5, root.stropheUtils);
        root.Strophe =        o.Strophe;
        root.$build =         o.$build;
        root.$iq =            o.$iq;
        root.$msg =           o.$msg;
        root.$pres =          o.$pres;
        root.SHA1 =           o.SHA1;
        root.MD5 =            o.MD5;
        root.b64_hmac_sha1 =  o.SHA1.b64_hmac_sha1;
        root.b64_sha1 =       o.SHA1.b64_sha1;
        root.str_hmac_sha1 =  o.SHA1.str_hmac_sha1;
        root.str_sha1 =       o.SHA1.str_sha1;
    }
}(this, function (SHA1, MD5, utils) {

var Strophe;

/** Function: $build
 *  Create a Strophe.Builder.
 *  This is an alias for 'new Strophe.Builder(name, attrs)'.
 *
 *  Parameters:
 *    (String) name - The root element name.
 *    (Object) attrs - The attributes for the root element in object notation.
 *
 *  Returns:
 *    A new Strophe.Builder object.
 */
function $build(name, attrs) { return new Strophe.Builder(name, attrs); }

/** Function: $msg
 *  Create a Strophe.Builder with a <message/> element as the root.
 *
 *  Parameters:
 *    (Object) attrs - The <message/> element attributes in object notation.
 *
 *  Returns:
 *    A new Strophe.Builder object.
 */
function $msg(attrs) { return new Strophe.Builder("message", attrs); }

/** Function: $iq
 *  Create a Strophe.Builder with an <iq/> element as the root.
 *
 *  Parameters:
 *    (Object) attrs - The <iq/> element attributes in object notation.
 *
 *  Returns:
 *    A new Strophe.Builder object.
 */
function $iq(attrs) { return new Strophe.Builder("iq", attrs); }

/** Function: $pres
 *  Create a Strophe.Builder with a <presence/> element as the root.
 *
 *  Parameters:
 *    (Object) attrs - The <presence/> element attributes in object notation.
 *
 *  Returns:
 *    A new Strophe.Builder object.
 */
function $pres(attrs) { return new Strophe.Builder("presence", attrs); }

/** Class: Strophe
 *  An object container for all Strophe library functions.
 *
 *  This class is just a container for all the objects and constants
 *  used in the library.  It is not meant to be instantiated, but to
 *  provide a namespace for library objects, constants, and functions.
 */
Strophe = {
    /** Constant: VERSION */
    VERSION: "1.2.13",

    /** Constants: XMPP Namespace Constants
     *  Common namespace constants from the XMPP RFCs and XEPs.
     *
     *  NS.HTTPBIND - HTTP BIND namespace from XEP 124.
     *  NS.BOSH - BOSH namespace from XEP 206.
     *  NS.CLIENT - Main XMPP client namespace.
     *  NS.AUTH - Legacy authentication namespace.
     *  NS.ROSTER - Roster operations namespace.
     *  NS.PROFILE - Profile namespace.
     *  NS.DISCO_INFO - Service discovery info namespace from XEP 30.
     *  NS.DISCO_ITEMS - Service discovery items namespace from XEP 30.
     *  NS.MUC - Multi-User Chat namespace from XEP 45.
     *  NS.SASL - XMPP SASL namespace from RFC 3920.
     *  NS.STREAM - XMPP Streams namespace from RFC 3920.
     *  NS.BIND - XMPP Binding namespace from RFC 3920.
     *  NS.SESSION - XMPP Session namespace from RFC 3920.
     *  NS.XHTML_IM - XHTML-IM namespace from XEP 71.
     *  NS.XHTML - XHTML body namespace from XEP 71.
     */
    NS: {
        HTTPBIND: "http://jabber.org/protocol/httpbind",
        BOSH: "urn:xmpp:xbosh",
        CLIENT: "jabber:client",
        AUTH: "jabber:iq:auth",
        ROSTER: "jabber:iq:roster",
        PROFILE: "jabber:iq:profile",
        DISCO_INFO: "http://jabber.org/protocol/disco#info",
        DISCO_ITEMS: "http://jabber.org/protocol/disco#items",
        MUC: "http://jabber.org/protocol/muc",
        SASL: "urn:ietf:params:xml:ns:xmpp-sasl",
        STREAM: "http://etherx.jabber.org/streams",
        FRAMING: "urn:ietf:params:xml:ns:xmpp-framing",
        BIND: "urn:ietf:params:xml:ns:xmpp-bind",
        SESSION: "urn:ietf:params:xml:ns:xmpp-session",
        VERSION: "jabber:iq:version",
        STANZAS: "urn:ietf:params:xml:ns:xmpp-stanzas",
        XHTML_IM: "http://jabber.org/protocol/xhtml-im",
        XHTML: "http://www.w3.org/1999/xhtml"
    },

    /** Constants: XHTML_IM Namespace
     *  contains allowed tags, tag attributes, and css properties.
     *  Used in the createHtml function to filter incoming html into the allowed XHTML-IM subset.
     *  See http://xmpp.org/extensions/xep-0071.html#profile-summary for the list of recommended
     *  allowed tags and their attributes.
     */
    XHTML: {
        tags: ['a','blockquote','br','cite','em','img','li','ol','p','span','strong','ul','body'],
        attributes: {
            'a':          ['href'],
            'blockquote': ['style'],
            'br':         [],
            'cite':       ['style'],
            'em':         [],
            'img':        ['src', 'alt', 'style', 'height', 'width'],
            'li':         ['style'],
            'ol':         ['style'],
            'p':          ['style'],
            'span':       ['style'],
            'strong':     [],
            'ul':         ['style'],
            'body':       []
        },
        css: ['background-color','color','font-family','font-size','font-style','font-weight','margin-left','margin-right','text-align','text-decoration'],
        /** Function: XHTML.validTag
         *
         * Utility method to determine whether a tag is allowed
         * in the XHTML_IM namespace.
         *
         * XHTML tag names are case sensitive and must be lower case.
         */
        validTag: function(tag) {
            for (var i = 0; i < Strophe.XHTML.tags.length; i++) {
                if (tag === Strophe.XHTML.tags[i]) {
                    return true;
                }
            }
            return false;
        },
        /** Function: XHTML.validAttribute
         *
         * Utility method to determine whether an attribute is allowed
         * as recommended per XEP-0071
         *
         * XHTML attribute names are case sensitive and must be lower case.
         */
        validAttribute: function(tag, attribute) {
            if (typeof Strophe.XHTML.attributes[tag] !== 'undefined' && Strophe.XHTML.attributes[tag].length > 0) {
                for (var i = 0; i < Strophe.XHTML.attributes[tag].length; i++) {
                    if (attribute === Strophe.XHTML.attributes[tag][i]) {
                        return true;
                    }
                }
            }
        return false;
        },
        validCSS: function(style) {
            for (var i = 0; i < Strophe.XHTML.css.length; i++) {
                if (style === Strophe.XHTML.css[i]) {
                    return true;
                }
            }
            return false;
        }
    },

    /** Constants: Connection Status Constants
     *  Connection status constants for use by the connection handler
     *  callback.
     *
     *  Status.ERROR - An error has occurred
     *  Status.CONNECTING - The connection is currently being made
     *  Status.CONNFAIL - The connection attempt failed
     *  Status.AUTHENTICATING - The connection is authenticating
     *  Status.AUTHFAIL - The authentication attempt failed
     *  Status.CONNECTED - The connection has succeeded
     *  Status.DISCONNECTED - The connection has been terminated
     *  Status.DISCONNECTING - The connection is currently being terminated
     *  Status.ATTACHED - The connection has been attached
     *  Status.CONNTIMEOUT - The connection has timed out
     */
    Status: {
        ERROR: 0,
        CONNECTING: 1,
        CONNFAIL: 2,
        AUTHENTICATING: 3,
        AUTHFAIL: 4,
        CONNECTED: 5,
        DISCONNECTED: 6,
        DISCONNECTING: 7,
        ATTACHED: 8,
        REDIRECT: 9,
        CONNTIMEOUT: 10
    },

    /** Constants: Log Level Constants
     *  Logging level indicators.
     *
     *  LogLevel.DEBUG - Debug output
     *  LogLevel.INFO - Informational output
     *  LogLevel.WARN - Warnings
     *  LogLevel.ERROR - Errors
     *  LogLevel.FATAL - Fatal errors
     */
    LogLevel: {
        DEBUG: 0,
        INFO: 1,
        WARN: 2,
        ERROR: 3,
        FATAL: 4
    },

    /** PrivateConstants: DOM Element Type Constants
     *  DOM element types.
     *
     *  ElementType.NORMAL - Normal element.
     *  ElementType.TEXT - Text data element.
     *  ElementType.FRAGMENT - XHTML fragment element.
     */
    ElementType: {
        NORMAL: 1,
        TEXT: 3,
        CDATA: 4,
        FRAGMENT: 11
    },

    /** PrivateConstants: Timeout Values
     *  Timeout values for error states.  These values are in seconds.
     *  These should not be changed unless you know exactly what you are
     *  doing.
     *
     *  TIMEOUT - Timeout multiplier. A waiting request will be considered
     *      failed after Math.floor(TIMEOUT * wait) seconds have elapsed.
     *      This defaults to 1.1, and with default wait, 66 seconds.
     *  SECONDARY_TIMEOUT - Secondary timeout multiplier. In cases where
     *      Strophe can detect early failure, it will consider the request
     *      failed if it doesn't return after
     *      Math.floor(SECONDARY_TIMEOUT * wait) seconds have elapsed.
     *      This defaults to 0.1, and with default wait, 6 seconds.
     */
    TIMEOUT: 1.1,
    SECONDARY_TIMEOUT: 0.1,

    /** Function: addNamespace
     *  This function is used to extend the current namespaces in
     *  Strophe.NS.  It takes a key and a value with the key being the
     *  name of the new namespace, with its actual value.
     *  For example:
     *  Strophe.addNamespace('PUBSUB', "http://jabber.org/protocol/pubsub");
     *
     *  Parameters:
     *    (String) name - The name under which the namespace will be
     *      referenced under Strophe.NS
     *    (String) value - The actual namespace.
     */
    addNamespace: function (name, value) {
        Strophe.NS[name] = value;
    },

    /** Function: forEachChild
     *  Map a function over some or all child elements of a given element.
     *
     *  This is a small convenience function for mapping a function over
     *  some or all of the children of an element.  If elemName is null, all
     *  children will be passed to the function, otherwise only children
     *  whose tag names match elemName will be passed.
     *
     *  Parameters:
     *    (XMLElement) elem - The element to operate on.
     *    (String) elemName - The child element tag name filter.
     *    (Function) func - The function to apply to each child.  This
     *      function should take a single argument, a DOM element.
     */
    forEachChild: function (elem, elemName, func) {
        var i, childNode;
        for (i = 0; i < elem.childNodes.length; i++) {
            childNode = elem.childNodes[i];
            if (childNode.nodeType === Strophe.ElementType.NORMAL &&
                (!elemName || this.isTagEqual(childNode, elemName))) {
                func(childNode);
            }
        }
    },

    /** Function: isTagEqual
     *  Compare an element's tag name with a string.
     *
     *  This function is case sensitive.
     *
     *  Parameters:
     *    (XMLElement) el - A DOM element.
     *    (String) name - The element name.
     *
     *  Returns:
     *    true if the element's tag name matches _el_, and false
     *    otherwise.
     */
    isTagEqual: function (el, name) {
        return el.tagName === name;
    },

    /** PrivateVariable: _xmlGenerator
     *  _Private_ variable that caches a DOM document to
     *  generate elements.
     */
    _xmlGenerator: null,

    /** PrivateFunction: _makeGenerator
     *  _Private_ function that creates a dummy XML DOM document to serve as
     *  an element and text node generator.
     */
    _makeGenerator: function () {
        var doc;
        // IE9 does implement createDocument(); however, using it will cause the browser to leak memory on page unload.
        // Here, we test for presence of createDocument() plus IE's proprietary documentMode attribute, which would be
                // less than 10 in the case of IE9 and below.
        if (document.implementation.createDocument === undefined ||
                        document.implementation.createDocument && document.documentMode && document.documentMode < 10) {
            doc = this._getIEXmlDom();
            doc.appendChild(doc.createElement('strophe'));
        } else {
            doc = document.implementation
                .createDocument('jabber:client', 'strophe', null);
        }
        return doc;
    },

    /** Function: xmlGenerator
     *  Get the DOM document to generate elements.
     *
     *  Returns:
     *    The currently used DOM document.
     */
    xmlGenerator: function () {
        if (!Strophe._xmlGenerator) {
            Strophe._xmlGenerator = Strophe._makeGenerator();
        }
        return Strophe._xmlGenerator;
    },

    /** PrivateFunction: _getIEXmlDom
     *  Gets IE xml doc object
     *
     *  Returns:
     *    A Microsoft XML DOM Object
     *  See Also:
     *    http://msdn.microsoft.com/en-us/library/ms757837%28VS.85%29.aspx
     */
    _getIEXmlDom : function() {
        var doc = null;
        var docStrings = [
            "Msxml2.DOMDocument.6.0",
            "Msxml2.DOMDocument.5.0",
            "Msxml2.DOMDocument.4.0",
            "MSXML2.DOMDocument.3.0",
            "MSXML2.DOMDocument",
            "MSXML.DOMDocument",
            "Microsoft.XMLDOM"
        ];

        for (var d = 0; d < docStrings.length; d++) {
            if (doc === null) {
                try {
                    doc = new ActiveXObject(docStrings[d]);
                } catch (e) {
                    doc = null;
                }
            } else {
                break;
            }
        }
        return doc;
    },

    /** Function: xmlElement
     *  Create an XML DOM element.
     *
     *  This function creates an XML DOM element correctly across all
     *  implementations. Note that these are not HTML DOM elements, which
     *  aren't appropriate for XMPP stanzas.
     *
     *  Parameters:
     *    (String) name - The name for the element.
     *    (Array|Object) attrs - An optional array or object containing
     *      key/value pairs to use as element attributes. The object should
     *      be in the format {'key': 'value'} or {key: 'value'}. The array
     *      should have the format [['key1', 'value1'], ['key2', 'value2']].
     *    (String) text - The text child data for the element.
     *
     *  Returns:
     *    A new XML DOM element.
     */
    xmlElement: function (name) {
        if (!name) { return null; }

        var node = Strophe.xmlGenerator().createElement(name);
        // FIXME: this should throw errors if args are the wrong type or
        // there are more than two optional args
        var a, i, k;
        for (a = 1; a < arguments.length; a++) {
            var arg = arguments[a];
            if (!arg) { continue; }
            if (typeof(arg) === "string" ||
                typeof(arg) === "number") {
                node.appendChild(Strophe.xmlTextNode(arg));
            } else if (typeof(arg) === "object" &&
                       typeof(arg.sort) === "function") {
                for (i = 0; i < arg.length; i++) {
                    var attr = arg[i];
                    if (typeof(attr) === "object" &&
                        typeof(attr.sort) === "function" &&
                        attr[1] !== undefined &&
                        attr[1] !== null) {
                        node.setAttribute(attr[0], attr[1]);
                    }
                }
            } else if (typeof(arg) === "object") {
                for (k in arg) {
                    if (arg.hasOwnProperty(k)) {
                        if (arg[k] !== undefined &&
                            arg[k] !== null) {
                            node.setAttribute(k, arg[k]);
                        }
                    }
                }
            }
        }

        return node;
    },

    /*  Function: xmlescape
     *  Excapes invalid xml characters.
     *
     *  Parameters:
     *     (String) text - text to escape.
     *
     *  Returns:
     *      Escaped text.
     */
    xmlescape: function(text) {
        text = text.replace(/\&/g, "&amp;");
        text = text.replace(/</g,  "&lt;");
        text = text.replace(/>/g,  "&gt;");
        text = text.replace(/'/g,  "&apos;");
        text = text.replace(/"/g,  "&quot;");
        return text;
    },

    /*  Function: xmlunescape
    *  Unexcapes invalid xml characters.
    *
    *  Parameters:
    *     (String) text - text to unescape.
    *
    *  Returns:
    *      Unescaped text.
    */
    xmlunescape: function(text) {
        text = text.replace(/\&amp;/g, "&");
        text = text.replace(/&lt;/g,  "<");
        text = text.replace(/&gt;/g,  ">");
        text = text.replace(/&apos;/g,  "'");
        text = text.replace(/&quot;/g,  "\"");
        return text;
    },

    /** Function: xmlTextNode
     *  Creates an XML DOM text node.
     *
     *  Provides a cross implementation version of document.createTextNode.
     *
     *  Parameters:
     *    (String) text - The content of the text node.
     *
     *  Returns:
     *    A new XML DOM text node.
     */
    xmlTextNode: function (text) {
        return Strophe.xmlGenerator().createTextNode(text);
    },

    /** Function: xmlHtmlNode
     *  Creates an XML DOM html node.
     *
     *  Parameters:
     *    (String) html - The content of the html node.
     *
     *  Returns:
     *    A new XML DOM text node.
     */
    xmlHtmlNode: function (html) {
        var node;
        //ensure text is escaped
        if (DOMParser) {
            var parser = new DOMParser();
            node = parser.parseFromString(html, "text/xml");
        } else {
            node = new ActiveXObject("Microsoft.XMLDOM");
            node.async="false";
            node.loadXML(html);
        }
        return node;
    },

    /** Function: getText
     *  Get the concatenation of all text children of an element.
     *
     *  Parameters:
     *    (XMLElement) elem - A DOM element.
     *
     *  Returns:
     *    A String with the concatenated text of all text element children.
     */
    getText: function (elem) {
        if (!elem) { return null; }

        var str = "";
        if (elem.childNodes.length === 0 && elem.nodeType === Strophe.ElementType.TEXT) {
            str += elem.nodeValue;
        }

        for (var i = 0; i < elem.childNodes.length; i++) {
            if (elem.childNodes[i].nodeType === Strophe.ElementType.TEXT) {
                str += elem.childNodes[i].nodeValue;
            }
        }

        return Strophe.xmlescape(str);
    },

    /** Function: copyElement
     *  Copy an XML DOM element.
     *
     *  This function copies a DOM element and all its descendants and returns
     *  the new copy.
     *
     *  Parameters:
     *    (XMLElement) elem - A DOM element.
     *
     *  Returns:
     *    A new, copied DOM element tree.
     */
    copyElement: function (elem) {
        var i, el;
        if (elem.nodeType === Strophe.ElementType.NORMAL) {
            el = Strophe.xmlElement(elem.tagName);

            for (i = 0; i < elem.attributes.length; i++) {
                el.setAttribute(elem.attributes[i].nodeName,
                                elem.attributes[i].value);
            }

            for (i = 0; i < elem.childNodes.length; i++) {
                el.appendChild(Strophe.copyElement(elem.childNodes[i]));
            }
        } else if (elem.nodeType === Strophe.ElementType.TEXT) {
            el = Strophe.xmlGenerator().createTextNode(elem.nodeValue);
        }
        return el;
    },


    /** Function: createHtml
     *  Copy an HTML DOM element into an XML DOM.
     *
     *  This function copies a DOM element and all its descendants and returns
     *  the new copy.
     *
     *  Parameters:
     *    (HTMLElement) elem - A DOM element.
     *
     *  Returns:
     *    A new, copied DOM element tree.
     */
    createHtml: function (elem) {
        var i, el, j, tag, attribute, value, css, cssAttrs, attr, cssName, cssValue;
        if (elem.nodeType === Strophe.ElementType.NORMAL) {
            tag = elem.nodeName.toLowerCase(); // XHTML tags must be lower case.
            if(Strophe.XHTML.validTag(tag)) {
                try {
                    el = Strophe.xmlElement(tag);
                    for(i = 0; i < Strophe.XHTML.attributes[tag].length; i++) {
                        attribute = Strophe.XHTML.attributes[tag][i];
                        value = elem.getAttribute(attribute);
                        if(typeof value === 'undefined' || value === null || value === '' || value === false || value === 0) {
                            continue;
                        }
                        if(attribute === 'style' && typeof value === 'object') {
                            if(typeof value.cssText !== 'undefined') {
                                value = value.cssText; // we're dealing with IE, need to get CSS out
                            }
                        }
                        // filter out invalid css styles
                        if(attribute === 'style') {
                            css = [];
                            cssAttrs = value.split(';');
                            for(j = 0; j < cssAttrs.length; j++) {
                                attr = cssAttrs[j].split(':');
                                cssName = attr[0].replace(/^\s*/, "").replace(/\s*$/, "").toLowerCase();
                                if(Strophe.XHTML.validCSS(cssName)) {
                                    cssValue = attr[1].replace(/^\s*/, "").replace(/\s*$/, "");
                                    css.push(cssName + ': ' + cssValue);
                                }
                            }
                            if(css.length > 0) {
                                value = css.join('; ');
                                el.setAttribute(attribute, value);
                            }
                        } else {
                            el.setAttribute(attribute, value);
                        }
                    }

                    for (i = 0; i < elem.childNodes.length; i++) {
                        el.appendChild(Strophe.createHtml(elem.childNodes[i]));
                    }
                } catch(e) { // invalid elements
                  el = Strophe.xmlTextNode('');
                }
            } else {
                el = Strophe.xmlGenerator().createDocumentFragment();
                for (i = 0; i < elem.childNodes.length; i++) {
                    el.appendChild(Strophe.createHtml(elem.childNodes[i]));
                }
            }
        } else if (elem.nodeType === Strophe.ElementType.FRAGMENT) {
            el = Strophe.xmlGenerator().createDocumentFragment();
            for (i = 0; i < elem.childNodes.length; i++) {
                el.appendChild(Strophe.createHtml(elem.childNodes[i]));
            }
        } else if (elem.nodeType === Strophe.ElementType.TEXT) {
            el = Strophe.xmlTextNode(elem.nodeValue);
        }
        return el;
    },

    /** Function: escapeNode
     *  Escape the node part (also called local part) of a JID.
     *
     *  Parameters:
     *    (String) node - A node (or local part).
     *
     *  Returns:
     *    An escaped node (or local part).
     */
    escapeNode: function (node) {
        if (typeof node !== "string") { return node; }
        return node.replace(/^\s+|\s+$/g, '')
            .replace(/\\/g,  "\\5c")
            .replace(/ /g,   "\\20")
            .replace(/\"/g,  "\\22")
            .replace(/\&/g,  "\\26")
            .replace(/\'/g,  "\\27")
            .replace(/\//g,  "\\2f")
            .replace(/:/g,   "\\3a")
            .replace(/</g,   "\\3c")
            .replace(/>/g,   "\\3e")
            .replace(/@/g,   "\\40");
    },

    /** Function: unescapeNode
     *  Unescape a node part (also called local part) of a JID.
     *
     *  Parameters:
     *    (String) node - A node (or local part).
     *
     *  Returns:
     *    An unescaped node (or local part).
     */
    unescapeNode: function (node) {
        if (typeof node !== "string") { return node; }
        return node.replace(/\\20/g, " ")
            .replace(/\\22/g, '"')
            .replace(/\\26/g, "&")
            .replace(/\\27/g, "'")
            .replace(/\\2f/g, "/")
            .replace(/\\3a/g, ":")
            .replace(/\\3c/g, "<")
            .replace(/\\3e/g, ">")
            .replace(/\\40/g, "@")
            .replace(/\\5c/g, "\\");
    },

    /** Function: getNodeFromJid
     *  Get the node portion of a JID String.
     *
     *  Parameters:
     *    (String) jid - A JID.
     *
     *  Returns:
     *    A String containing the node.
     */
    getNodeFromJid: function (jid) {
        if (jid.indexOf("@") < 0) { return null; }
        return jid.split("@")[0];
    },

    /** Function: getDomainFromJid
     *  Get the domain portion of a JID String.
     *
     *  Parameters:
     *    (String) jid - A JID.
     *
     *  Returns:
     *    A String containing the domain.
     */
    getDomainFromJid: function (jid) {
        var bare = Strophe.getBareJidFromJid(jid);
        if (bare.indexOf("@") < 0) {
            return bare;
        } else {
            var parts = bare.split("@");
            parts.splice(0, 1);
            return parts.join('@');
        }
    },

    /** Function: getResourceFromJid
     *  Get the resource portion of a JID String.
     *
     *  Parameters:
     *    (String) jid - A JID.
     *
     *  Returns:
     *    A String containing the resource.
     */
    getResourceFromJid: function (jid) {
        var s = jid.split("/");
        if (s.length < 2) { return null; }
        s.splice(0, 1);
        return s.join('/');
    },

    /** Function: getBareJidFromJid
     *  Get the bare JID from a JID String.
     *
     *  Parameters:
     *    (String) jid - A JID.
     *
     *  Returns:
     *    A String containing the bare JID.
     */
    getBareJidFromJid: function (jid) {
        return jid ? jid.split("/")[0] : null;
    },

    /** PrivateFunction: _handleError
     *  _Private_ function that properly logs an error to the console
     */
    _handleError: function (e) {
        if (typeof e.stack !== "undefined") {
            Strophe.fatal(e.stack);
        }
        if (e.sourceURL) {
            Strophe.fatal("error: " + this.handler + " " + e.sourceURL + ":" +
                          e.line + " - " + e.name + ": " + e.message);
        } else if (e.fileName) {
            Strophe.fatal("error: " + this.handler + " " +
                          e.fileName + ":" + e.lineNumber + " - " +
                          e.name + ": " + e.message);
        } else {
            Strophe.fatal("error: " + e.message);
        }
    },

    /** Function: log
     *  User overrideable logging function.
     *
     *  This function is called whenever the Strophe library calls any
     *  of the logging functions.  The default implementation of this
     *  function does nothing.  If client code wishes to handle the logging
     *  messages, it should override this with
     *  > Strophe.log = function (level, msg) {
     *  >   (user code here)
     *  > };
     *
     *  Please note that data sent and received over the wire is logged
     *  via Strophe.Connection.rawInput() and Strophe.Connection.rawOutput().
     *
     *  The different levels and their meanings are
     *
     *    DEBUG - Messages useful for debugging purposes.
     *    INFO - Informational messages.  This is mostly information like
     *      'disconnect was called' or 'SASL auth succeeded'.
     *    WARN - Warnings about potential problems.  This is mostly used
     *      to report transient connection errors like request timeouts.
     *    ERROR - Some error occurred.
     *    FATAL - A non-recoverable fatal error occurred.
     *
     *  Parameters:
     *    (Integer) level - The log level of the log message.  This will
     *      be one of the values in Strophe.LogLevel.
     *    (String) msg - The log message.
     */
    /* jshint ignore:start */
    log: function (level, msg) {
        return;
    },
    /* jshint ignore:end */

    /** Function: debug
     *  Log a message at the Strophe.LogLevel.DEBUG level.
     *
     *  Parameters:
     *    (String) msg - The log message.
     */
    debug: function(msg) {
        this.log(this.LogLevel.DEBUG, msg);
    },

    /** Function: info
     *  Log a message at the Strophe.LogLevel.INFO level.
     *
     *  Parameters:
     *    (String) msg - The log message.
     */
    info: function (msg) {
        this.log(this.LogLevel.INFO, msg);
    },

    /** Function: warn
     *  Log a message at the Strophe.LogLevel.WARN level.
     *
     *  Parameters:
     *    (String) msg - The log message.
     */
    warn: function (msg) {
        this.log(this.LogLevel.WARN, msg);
    },

    /** Function: error
     *  Log a message at the Strophe.LogLevel.ERROR level.
     *
     *  Parameters:
     *    (String) msg - The log message.
     */
    error: function (msg) {
        this.log(this.LogLevel.ERROR, msg);
    },

    /** Function: fatal
     *  Log a message at the Strophe.LogLevel.FATAL level.
     *
     *  Parameters:
     *    (String) msg - The log message.
     */
    fatal: function (msg) {
        this.log(this.LogLevel.FATAL, msg);
    },

    /** Function: serialize
     *  Render a DOM element and all descendants to a String.
     *
     *  Parameters:
     *    (XMLElement) elem - A DOM element.
     *
     *  Returns:
     *    The serialized element tree as a String.
     */
    serialize: function (elem) {
        var result;

        if (!elem) { return null; }

        if (typeof(elem.tree) === "function") {
            elem = elem.tree();
        }

        var nodeName = elem.nodeName;
        var i, child;

        if (elem.getAttribute("_realname")) {
            nodeName = elem.getAttribute("_realname");
        }

        result = "<" + nodeName;
        for (i = 0; i < elem.attributes.length; i++) {
             if(elem.attributes[i].nodeName !== "_realname") {
               result += " " + elem.attributes[i].nodeName +
                   "='" + Strophe.xmlescape(elem.attributes[i].value) + "'";
             }
        }

        if (elem.childNodes.length > 0) {
            result += ">";
            for (i = 0; i < elem.childNodes.length; i++) {
                child = elem.childNodes[i];
                switch( child.nodeType ){
                  case Strophe.ElementType.NORMAL:
                    // normal element, so recurse
                    result += Strophe.serialize(child);
                    break;
                  case Strophe.ElementType.TEXT:
                    // text element to escape values
                    result += Strophe.xmlescape(child.nodeValue);
                    break;
                  case Strophe.ElementType.CDATA:
                    // cdata section so don't escape values
                    result += "<![CDATA["+child.nodeValue+"]]>";
                }
            }
            result += "</" + nodeName + ">";
        } else {
            result += "/>";
        }

        return result;
    },

    /** PrivateVariable: _requestId
     *  _Private_ variable that keeps track of the request ids for
     *  connections.
     */
    _requestId: 0,

    /** PrivateVariable: Strophe.connectionPlugins
     *  _Private_ variable Used to store plugin names that need
     *  initialization on Strophe.Connection construction.
     */
    _connectionPlugins: {},

    /** Function: addConnectionPlugin
     *  Extends the Strophe.Connection object with the given plugin.
     *
     *  Parameters:
     *    (String) name - The name of the extension.
     *    (Object) ptype - The plugin's prototype.
     */
    addConnectionPlugin: function (name, ptype) {
        Strophe._connectionPlugins[name] = ptype;
    }
};

/** Class: Strophe.Builder
 *  XML DOM builder.
 *
 *  This object provides an interface similar to JQuery but for building
 *  DOM elements easily and rapidly.  All the functions except for toString()
 *  and tree() return the object, so calls can be chained.  Here's an
 *  example using the $iq() builder helper.
 *  > $iq({to: 'you', from: 'me', type: 'get', id: '1'})
 *  >     .c('query', {xmlns: 'strophe:example'})
 *  >     .c('example')
 *  >     .toString()
 *
 *  The above generates this XML fragment
 *  > <iq to='you' from='me' type='get' id='1'>
 *  >   <query xmlns='strophe:example'>
 *  >     <example/>
 *  >   </query>
 *  > </iq>
 *  The corresponding DOM manipulations to get a similar fragment would be
 *  a lot more tedious and probably involve several helper variables.
 *
 *  Since adding children makes new operations operate on the child, up()
 *  is provided to traverse up the tree.  To add two children, do
 *  > builder.c('child1', ...).up().c('child2', ...)
 *  The next operation on the Builder will be relative to the second child.
 */

/** Constructor: Strophe.Builder
 *  Create a Strophe.Builder object.
 *
 *  The attributes should be passed in object notation.  For example
 *  > var b = new Builder('message', {to: 'you', from: 'me'});
 *  or
 *  > var b = new Builder('messsage', {'xml:lang': 'en'});
 *
 *  Parameters:
 *    (String) name - The name of the root element.
 *    (Object) attrs - The attributes for the root element in object notation.
 *
 *  Returns:
 *    A new Strophe.Builder.
 */
Strophe.Builder = function (name, attrs) {
    // Set correct namespace for jabber:client elements
    if (name === "presence" || name === "message" || name === "iq") {
        if (attrs && !attrs.xmlns) {
            attrs.xmlns = Strophe.NS.CLIENT;
        } else if (!attrs) {
            attrs = {xmlns: Strophe.NS.CLIENT};
        }
    }

    // Holds the tree being built.
    this.nodeTree = Strophe.xmlElement(name, attrs);

    // Points to the current operation node.
    this.node = this.nodeTree;
};

Strophe.Builder.prototype = {
    /** Function: tree
     *  Return the DOM tree.
     *
     *  This function returns the current DOM tree as an element object.  This
     *  is suitable for passing to functions like Strophe.Connection.send().
     *
     *  Returns:
     *    The DOM tree as a element object.
     */
    tree: function () {
        return this.nodeTree;
    },

    /** Function: toString
     *  Serialize the DOM tree to a String.
     *
     *  This function returns a string serialization of the current DOM
     *  tree.  It is often used internally to pass data to a
     *  Strophe.Request object.
     *
     *  Returns:
     *    The serialized DOM tree in a String.
     */
    toString: function () {
        return Strophe.serialize(this.nodeTree);
    },

    /** Function: up
     *  Make the current parent element the new current element.
     *
     *  This function is often used after c() to traverse back up the tree.
     *  For example, to add two children to the same element
     *  > builder.c('child1', {}).up().c('child2', {});
     *
     *  Returns:
     *    The Stophe.Builder object.
     */
    up: function () {
        this.node = this.node.parentNode;
        return this;
    },

    /** Function: root
     *  Make the root element the new current element.
     *
     *  When at a deeply nested element in the tree, this function can be used
     *  to jump back to the root of the tree, instead of having to repeatedly
     *  call up().
     *
     *  Returns:
     *    The Stophe.Builder object.
     */
    root: function () {
        this.node = this.nodeTree;
        return this;
    },

    /** Function: attrs
     *  Add or modify attributes of the current element.
     *
     *  The attributes should be passed in object notation.  This function
     *  does not move the current element pointer.
     *
     *  Parameters:
     *    (Object) moreattrs - The attributes to add/modify in object notation.
     *
     *  Returns:
     *    The Strophe.Builder object.
     */
    attrs: function (moreattrs) {
        for (var k in moreattrs) {
            if (moreattrs.hasOwnProperty(k)) {
                if (moreattrs[k] === undefined) {
                    this.node.removeAttribute(k);
                } else {
                    this.node.setAttribute(k, moreattrs[k]);
                }
            }
        }
        return this;
    },

    /** Function: c
     *  Add a child to the current element and make it the new current
     *  element.
     *
     *  This function moves the current element pointer to the child,
     *  unless text is provided.  If you need to add another child, it
     *  is necessary to use up() to go back to the parent in the tree.
     *
     *  Parameters:
     *    (String) name - The name of the child.
     *    (Object) attrs - The attributes of the child in object notation.
     *    (String) text - The text to add to the child.
     *
     *  Returns:
     *    The Strophe.Builder object.
     */
    c: function (name, attrs, text) {
        var child = Strophe.xmlElement(name, attrs, text);
        this.node.appendChild(child);
        if (typeof text !== "string" && typeof text !=="number") {
            this.node = child;
        }
        return this;
    },

    /** Function: cnode
     *  Add a child to the current element and make it the new current
     *  element.
     *
     *  This function is the same as c() except that instead of using a
     *  name and an attributes object to create the child it uses an
     *  existing DOM element object.
     *
     *  Parameters:
     *    (XMLElement) elem - A DOM element.
     *
     *  Returns:
     *    The Strophe.Builder object.
     */
    cnode: function (elem) {
        var impNode;
        var xmlGen = Strophe.xmlGenerator();
        try {
            impNode = (xmlGen.importNode !== undefined);
        } catch (e) {
            impNode = false;
        }
        var newElem = impNode ?
                      xmlGen.importNode(elem, true) :
                      Strophe.copyElement(elem);
        this.node.appendChild(newElem);
        this.node = newElem;
        return this;
    },

    /** Function: t
     *  Add a child text element.
     *
     *  This *does not* make the child the new current element since there
     *  are no children of text elements.
     *
     *  Parameters:
     *    (String) text - The text data to append to the current element.
     *
     *  Returns:
     *    The Strophe.Builder object.
     */
    t: function (text) {
        var child = Strophe.xmlTextNode(text);
        this.node.appendChild(child);
        return this;
    },

    /** Function: h
     *  Replace current element contents with the HTML passed in.
     *
     *  This *does not* make the child the new current element
     *
     *  Parameters:
     *    (String) html - The html to insert as contents of current element.
     *
     *  Returns:
     *    The Strophe.Builder object.
     */
    h: function (html) {
        var fragment = document.createElement('body');

        // force the browser to try and fix any invalid HTML tags
        fragment.innerHTML = html;

        // copy cleaned html into an xml dom
        var xhtml = Strophe.createHtml(fragment);

        while(xhtml.childNodes.length > 0) {
            this.node.appendChild(xhtml.childNodes[0]);
        }
        return this;
    }
};

/** PrivateClass: Strophe.Handler
 *  _Private_ helper class for managing stanza handlers.
 *
 *  A Strophe.Handler encapsulates a user provided callback function to be
 *  executed when matching stanzas are received by the connection.
 *  Handlers can be either one-off or persistant depending on their
 *  return value. Returning true will cause a Handler to remain active, and
 *  returning false will remove the Handler.
 *
 *  Users will not use Strophe.Handler objects directly, but instead they
 *  will use Strophe.Connection.addHandler() and
 *  Strophe.Connection.deleteHandler().
 */

/** PrivateConstructor: Strophe.Handler
 *  Create and initialize a new Strophe.Handler.
 *
 *  Parameters:
 *    (Function) handler - A function to be executed when the handler is run.
 *    (String) ns - The namespace to match.
 *    (String) name - The element name to match.
 *    (String) type - The element type to match.
 *    (String) id - The element id attribute to match.
 *    (String) from - The element from attribute to match.
 *    (Object) options - Handler options
 *
 *  Returns:
 *    A new Strophe.Handler object.
 */
Strophe.Handler = function (handler, ns, name, type, id, from, options) {
    this.handler = handler;
    this.ns = ns;
    this.name = name;
    this.type = type;
    this.id = id;
    this.options = options || {'matchBareFromJid': false, 'ignoreNamespaceFragment': false};
    // BBB: Maintain backward compatibility with old `matchBare` option
    if (this.options.matchBare) {
        Strophe.warn('The "matchBare" option is deprecated, use "matchBareFromJid" instead.');
        this.options.matchBareFromJid = this.options.matchBare;
        delete this.options.matchBare;
    }

    if (this.options.matchBareFromJid) {
        this.from = from ? Strophe.getBareJidFromJid(from) : null;
    } else {
        this.from = from;
    }
    // whether the handler is a user handler or a system handler
    this.user = true;
};

Strophe.Handler.prototype = {
    /** PrivateFunction: getNamespace
     *  Returns the XML namespace attribute on an element.
     *  If `ignoreNamespaceFragment` was passed in for this handler, then the
     *  URL fragment will be stripped.
     *
     *  Parameters:
     *    (XMLElement) elem - The XML element with the namespace.
     *
     *  Returns:
     *    The namespace, with optionally the fragment stripped.
     */
    getNamespace: function (elem) {
        var elNamespace = elem.getAttribute("xmlns");
        if (elNamespace && this.options.ignoreNamespaceFragment) {
            elNamespace = elNamespace.split('#')[0];
        }
        return elNamespace;
    },

    /** PrivateFunction: namespaceMatch
     *  Tests if a stanza matches the namespace set for this Strophe.Handler.
     *
     *  Parameters:
     *    (XMLElement) elem - The XML element to test.
     *
     *  Returns:
     *    true if the stanza matches and false otherwise.
     */
    namespaceMatch: function (elem) {
        var nsMatch = false;
        if (!this.ns) {
            return true;
        } else {
            var that = this;
            Strophe.forEachChild(elem, null, function (elem) {
                if (that.getNamespace(elem) === that.ns) {
                    nsMatch = true;
                }
            });
            nsMatch = nsMatch || this.getNamespace(elem) === this.ns;
        }
        return nsMatch;
    },

    /** PrivateFunction: isMatch
     *  Tests if a stanza matches the Strophe.Handler.
     *
     *  Parameters:
     *    (XMLElement) elem - The XML element to test.
     *
     *  Returns:
     *    true if the stanza matches and false otherwise.
     */
    isMatch: function (elem) {
        var from = elem.getAttribute('from');
        if (this.options.matchBareFromJid) {
            from = Strophe.getBareJidFromJid(from);
        }
        var elem_type = elem.getAttribute("type");
        if (this.namespaceMatch(elem) &&
            (!this.name || Strophe.isTagEqual(elem, this.name)) &&
            (!this.type || (Array.isArray(this.type) ? this.type.indexOf(elem_type) !== -1 : elem_type === this.type)) &&
            (!this.id || elem.getAttribute("id") === this.id) &&
            (!this.from || from === this.from)) {
                return true;
        }
        return false;
    },

    /** PrivateFunction: run
     *  Run the callback on a matching stanza.
     *
     *  Parameters:
     *    (XMLElement) elem - The DOM element that triggered the
     *      Strophe.Handler.
     *
     *  Returns:
     *    A boolean indicating if the handler should remain active.
     */
    run: function (elem) {
        var result = null;
        try {
            result = this.handler(elem);
        } catch (e) {
            Strophe._handleError(e);
            throw e;
        }
        return result;
    },

    /** PrivateFunction: toString
     *  Get a String representation of the Strophe.Handler object.
     *
     *  Returns:
     *    A String.
     */
    toString: function () {
        return "{Handler: " + this.handler + "(" + this.name + "," +
            this.id + "," + this.ns + ")}";
    }
};

/** PrivateClass: Strophe.TimedHandler
 *  _Private_ helper class for managing timed handlers.
 *
 *  A Strophe.TimedHandler encapsulates a user provided callback that
 *  should be called after a certain period of time or at regular
 *  intervals.  The return value of the callback determines whether the
 *  Strophe.TimedHandler will continue to fire.
 *
 *  Users will not use Strophe.TimedHandler objects directly, but instead
 *  they will use Strophe.Connection.addTimedHandler() and
 *  Strophe.Connection.deleteTimedHandler().
 */

/** PrivateConstructor: Strophe.TimedHandler
 *  Create and initialize a new Strophe.TimedHandler object.
 *
 *  Parameters:
 *    (Integer) period - The number of milliseconds to wait before the
 *      handler is called.
 *    (Function) handler - The callback to run when the handler fires.  This
 *      function should take no arguments.
 *
 *  Returns:
 *    A new Strophe.TimedHandler object.
 */
Strophe.TimedHandler = function (period, handler) {
    this.period = period;
    this.handler = handler;
    this.lastCalled = new Date().getTime();
    this.user = true;
};

Strophe.TimedHandler.prototype = {
    /** PrivateFunction: run
     *  Run the callback for the Strophe.TimedHandler.
     *
     *  Returns:
     *    true if the Strophe.TimedHandler should be called again, and false
     *      otherwise.
     */
    run: function () {
        this.lastCalled = new Date().getTime();
        return this.handler();
    },

    /** PrivateFunction: reset
     *  Reset the last called time for the Strophe.TimedHandler.
     */
    reset: function () {
        this.lastCalled = new Date().getTime();
    },

    /** PrivateFunction: toString
     *  Get a string representation of the Strophe.TimedHandler object.
     *
     *  Returns:
     *    The string representation.
     */
    toString: function () {
        return "{TimedHandler: " + this.handler + "(" + this.period +")}";
    }
};

/** Class: Strophe.Connection
 *  XMPP Connection manager.
 *
 *  This class is the main part of Strophe.  It manages a BOSH or websocket
 *  connection to an XMPP server and dispatches events to the user callbacks
 *  as data arrives. It supports SASL PLAIN, SASL DIGEST-MD5, SASL SCRAM-SHA1
 *  and legacy authentication.
 *
 *  After creating a Strophe.Connection object, the user will typically
 *  call connect() with a user supplied callback to handle connection level
 *  events like authentication failure, disconnection, or connection
 *  complete.
 *
 *  The user will also have several event handlers defined by using
 *  addHandler() and addTimedHandler().  These will allow the user code to
 *  respond to interesting stanzas or do something periodically with the
 *  connection. These handlers will be active once authentication is
 *  finished.
 *
 *  To send data to the connection, use send().
 */

/** Constructor: Strophe.Connection
 *  Create and initialize a Strophe.Connection object.
 *
 *  The transport-protocol for this connection will be chosen automatically
 *  based on the given service parameter. URLs starting with "ws://" or
 *  "wss://" will use WebSockets, URLs starting with "http://", "https://"
 *  or without a protocol will use BOSH.
 *
 *  To make Strophe connect to the current host you can leave out the protocol
 *  and host part and just pass the path, e.g.
 *
 *  > var conn = new Strophe.Connection("/http-bind/");
 *
 *  Options common to both Websocket and BOSH:
 *  ------------------------------------------
 *
 *  cookies:
 *
 *  The *cookies* option allows you to pass in cookies to be added to the
 *  document. These cookies will then be included in the BOSH XMLHttpRequest
 *  or in the websocket connection.
 *
 *  The passed in value must be a map of cookie names and string values.
 *
 *  > { "myCookie": {
 *  >     "value": "1234",
 *  >     "domain": ".example.org",
 *  >     "path": "/",
 *  >     "expires": expirationDate
 *  >     }
 *  > }
 *
 *  Note that cookies can't be set in this way for other domains (i.e. cross-domain).
 *  Those cookies need to be set under those domains, for example they can be
 *  set server-side by making a XHR call to that domain to ask it to set any
 *  necessary cookies.
 *
 *  mechanisms:
 *
 *  The *mechanisms* option allows you to specify the SASL mechanisms that this
 *  instance of Strophe.Connection (and therefore your XMPP client) will
 *  support.
 *
 *  The value must be an array of objects with Strophe.SASLMechanism
 *  prototypes.
 *
 *  If nothing is specified, then the following mechanisms (and their
 *  priorities) are registered:
 *
 *      OAUTHBEARER - 60
 *      SCRAM-SHA1 - 50
 *      DIGEST-MD5 - 40
 *      PLAIN - 30
 *      ANONYMOUS - 20
 *      EXTERNAL - 10
 *
 *  WebSocket options:
 *  ------------------
 *
 *  If you want to connect to the current host with a WebSocket connection you
 *  can tell Strophe to use WebSockets through a "protocol" attribute in the
 *  optional options parameter. Valid values are "ws" for WebSocket and "wss"
 *  for Secure WebSocket.
 *  So to connect to "wss://CURRENT_HOSTNAME/xmpp-websocket" you would call
 *
 *  > var conn = new Strophe.Connection("/xmpp-websocket/", {protocol: "wss"});
 *
 *  Note that relative URLs _NOT_ starting with a "/" will also include the path
 *  of the current site.
 *
 *  Also because downgrading security is not permitted by browsers, when using
 *  relative URLs both BOSH and WebSocket connections will use their secure
 *  variants if the current connection to the site is also secure (https).
 *
 *  BOSH options:
 *  -------------
 *
 *  By adding "sync" to the options, you can control if requests will
 *  be made synchronously or not. The default behaviour is asynchronous.
 *  If you want to make requests synchronous, make "sync" evaluate to true.
 *  > var conn = new Strophe.Connection("/http-bind/", {sync: true});
 *
 *  You can also toggle this on an already established connection.
 *  > conn.options.sync = true;
 *
 *  The *customHeaders* option can be used to provide custom HTTP headers to be
 *  included in the XMLHttpRequests made.
 *
 *  The *keepalive* option can be used to instruct Strophe to maintain the
 *  current BOSH session across interruptions such as webpage reloads.
 *
 *  It will do this by caching the sessions tokens in sessionStorage, and when
 *  "restore" is called it will check whether there are cached tokens with
 *  which it can resume an existing session.
 *
 *  The *withCredentials* option should receive a Boolean value and is used to
 *  indicate wether cookies should be included in ajax requests (by default
 *  they're not).
 *  Set this value to true if you are connecting to a BOSH service
 *  and for some reason need to send cookies to it.
 *  In order for this to work cross-domain, the server must also enable
 *  credentials by setting the Access-Control-Allow-Credentials response header
 *  to "true". For most usecases however this setting should be false (which
 *  is the default).
 *  Additionally, when using Access-Control-Allow-Credentials, the
 *  Access-Control-Allow-Origin header can't be set to the wildcard "*", but
 *  instead must be restricted to actual domains.
 *
 *  The *contentType* option can be set to change the default Content-Type
 *  of "text/xml; charset=utf-8", which can be useful to reduce the amount of
 *  CORS preflight requests that are sent to the server.
 *
 *  Parameters:
 *    (String) service - The BOSH or WebSocket service URL.
 *    (Object) options - A hash of configuration options
 *
 *  Returns:
 *    A new Strophe.Connection object.
 */
Strophe.Connection = function (service, options) {
    // The service URL
    this.service = service;
    // Configuration options
    this.options = options || {};
    var proto = this.options.protocol || "";

    // Select protocal based on service or options
    if (service.indexOf("ws:") === 0 || service.indexOf("wss:") === 0 ||
            proto.indexOf("ws") === 0) {
        this._proto = new Strophe.Websocket(this);
    } else {
        this._proto = new Strophe.Bosh(this);
    }

    /* The connected JID. */
    this.jid = "";
    /* the JIDs domain */
    this.domain = null;
    /* stream:features */
    this.features = null;

    // SASL
    this._sasl_data = {};
    this.do_session = false;
    this.do_bind = false;

    // handler lists
    this.timedHandlers = [];
    this.handlers = [];
    this.removeTimeds = [];
    this.removeHandlers = [];
    this.addTimeds = [];
    this.addHandlers = [];
    this.protocolErrorHandlers = {
        'HTTP': {},
        'websocket': {}
    };

    this._idleTimeout = null;
    this._disconnectTimeout = null;

    this.authenticated = false;
    this.connected = false;
    this.disconnecting = false;
    this.do_authentication = true;
    this.paused = false;
    this.restored = false;

    this._data = [];
    this._uniqueId = 0;

    this._sasl_success_handler = null;
    this._sasl_failure_handler = null;
    this._sasl_challenge_handler = null;

    // Max retries before disconnecting
    this.maxRetries = 5;

    // Call onIdle callback every 1/10th of a second
    // XXX: setTimeout should be called only with function expressions (23974bc1)
    this._idleTimeout = setTimeout(function() {
        this._onIdle();
    }.bind(this), 100);

    utils.addCookies(this.options.cookies);
    this.registerSASLMechanisms(this.options.mechanisms);

    // initialize plugins
    for (var k in Strophe._connectionPlugins) {
        if (Strophe._connectionPlugins.hasOwnProperty(k)) {
            var ptype = Strophe._connectionPlugins[k];
            // jslint complaints about the below line, but this is fine
            var F = function () {}; // jshint ignore:line
            F.prototype = ptype;
            this[k] = new F();
            this[k].init(this);
        }
    }
};

Strophe.Connection.prototype = {
    /** Function: reset
     *  Reset the connection.
     *
     *  This function should be called after a connection is disconnected
     *  before that connection is reused.
     */
    reset: function () {
        this._proto._reset();

        // SASL
        this.do_session = false;
        this.do_bind = false;

        // handler lists
        this.timedHandlers = [];
        this.handlers = [];
        this.removeTimeds = [];
        this.removeHandlers = [];
        this.addTimeds = [];
        this.addHandlers = [];

        this.authenticated = false;
        this.connected = false;
        this.disconnecting = false;
        this.restored = false;

        this._data = [];
        this._requests = [];
        this._uniqueId = 0;
    },

    /** Function: pause
     *  Pause the request manager.
     *
     *  This will prevent Strophe from sending any more requests to the
     *  server.  This is very useful for temporarily pausing
     *  BOSH-Connections while a lot of send() calls are happening quickly.
     *  This causes Strophe to send the data in a single request, saving
     *  many request trips.
     */
    pause: function () {
        this.paused = true;
    },

    /** Function: resume
     *  Resume the request manager.
     *
     *  This resumes after pause() has been called.
     */
    resume: function () {
        this.paused = false;
    },

    /** Function: getUniqueId
     *  Generate a unique ID for use in <iq/> elements.
     *
     *  All <iq/> stanzas are required to have unique id attributes.  This
     *  function makes creating these easy.  Each connection instance has
     *  a counter which starts from zero, and the value of this counter
     *  plus a colon followed by the suffix becomes the unique id. If no
     *  suffix is supplied, the counter is used as the unique id.
     *
     *  Suffixes are used to make debugging easier when reading the stream
     *  data, and their use is recommended.  The counter resets to 0 for
     *  every new connection for the same reason.  For connections to the
     *  same server that authenticate the same way, all the ids should be
     *  the same, which makes it easy to see changes.  This is useful for
     *  automated testing as well.
     *
     *  Parameters:
     *    (String) suffix - A optional suffix to append to the id.
     *
     *  Returns:
     *    A unique string to be used for the id attribute.
     */
    getUniqueId: function(suffix) {
        var uuid = 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {
            var r = Math.random() * 16 | 0,
                v = c === 'x' ? r : r & 0x3 | 0x8;
            return v.toString(16);
        });
        if (typeof(suffix) === "string" || typeof(suffix) === "number") {
            return uuid + ":" + suffix;
        } else {
            return uuid + "";
        }
    },

    /** Function: addProtocolErrorHandler
     *  Register a handler function for when a protocol (websocker or HTTP)
     *  error occurs.
     *
     *  NOTE: Currently only HTTP errors for BOSH requests are handled.
     *  Patches that handle websocket errors would be very welcome.
     *
     *  Parameters:
     *    (String) protocol - 'HTTP' or 'websocket' 
     *    (Integer) status_code - Error status code (e.g 500, 400 or 404)
     *    (Function) callback - Function that will fire on Http error
     *
     *  Example:
     *  function onError(err_code){
     *    //do stuff
     *  }
     *
     *  var conn = Strophe.connect('http://example.com/http-bind');
     *  conn.addProtocolErrorHandler('HTTP', 500, onError);
     *  // Triggers HTTP 500 error and onError handler will be called
     *  conn.connect('user_jid@incorrect_jabber_host', 'secret', onConnect);
     */
    addProtocolErrorHandler: function(protocol, status_code, callback){
        this.protocolErrorHandlers[protocol][status_code] = callback;
    },


    /** Function: connect
     *  Starts the connection process.
     *
     *  As the connection process proceeds, the user supplied callback will
     *  be triggered multiple times with status updates.  The callback
     *  should take two arguments - the status code and the error condition.
     *
     *  The status code will be one of the values in the Strophe.Status
     *  constants.  The error condition will be one of the conditions
     *  defined in RFC 3920 or the condition 'strophe-parsererror'.
     *
     *  The Parameters _wait_, _hold_ and _route_ are optional and only relevant
     *  for BOSH connections. Please see XEP 124 for a more detailed explanation
     *  of the optional parameters.
     *
     *  Parameters:
     *    (String) jid - The user's JID.  This may be a bare JID,
     *      or a full JID.  If a node is not supplied, SASL ANONYMOUS
     *      authentication will be attempted.
     *    (String) pass - The user's password.
     *    (Function) callback - The connect callback function.
     *    (Integer) wait - The optional HTTPBIND wait value.  This is the
     *      time the server will wait before returning an empty result for
     *      a request.  The default setting of 60 seconds is recommended.
     *    (Integer) hold - The optional HTTPBIND hold value.  This is the
     *      number of connections the server will hold at one time.  This
     *      should almost always be set to 1 (the default).
     *    (String) route - The optional route value.
     *    (String) authcid - The optional alternative authentication identity
     *      (username) if intending to impersonate another user.
     *      When using the SASL-EXTERNAL authentication mechanism, for example
     *      with client certificates, then the authcid value is used to
     *      determine whether an authorization JID (authzid) should be sent to
     *      the server. The authzid should not be sent to the server if the
     *      authzid and authcid are the same. So to prevent it from being sent
     *      (for example when the JID is already contained in the client
     *      certificate), set authcid to that same JID. See XEP-178 for more
     *      details.
     */
    connect: function (jid, pass, callback, wait, hold, route, authcid) {
        this.jid = jid;
        /** Variable: authzid
         *  Authorization identity.
         */
        this.authzid = Strophe.getBareJidFromJid(this.jid);

        /** Variable: authcid
         *  Authentication identity (User name).
         */
        this.authcid = authcid || Strophe.getNodeFromJid(this.jid);

        /** Variable: pass
         *  Authentication identity (User password).
         */
        this.pass = pass;

        /** Variable: servtype
         *  Digest MD5 compatibility.
         */
        this.servtype = "xmpp";

        this.connect_callback = callback;
        this.disconnecting = false;
        this.connected = false;
        this.authenticated = false;
        this.restored = false;

        // parse jid for domain
        this.domain = Strophe.getDomainFromJid(this.jid);

        this._changeConnectStatus(Strophe.Status.CONNECTING, null);

        this._proto._connect(wait, hold, route);
    },

    /** Function: attach
     *  Attach to an already created and authenticated BOSH session.
     *
     *  This function is provided to allow Strophe to attach to BOSH
     *  sessions which have been created externally, perhaps by a Web
     *  application.  This is often used to support auto-login type features
     *  without putting user credentials into the page.
     *
     *  Parameters:
     *    (String) jid - The full JID that is bound by the session.
     *    (String) sid - The SID of the BOSH session.
     *    (String) rid - The current RID of the BOSH session.  This RID
     *      will be used by the next request.
     *    (Function) callback The connect callback function.
     *    (Integer) wait - The optional HTTPBIND wait value.  This is the
     *      time the server will wait before returning an empty result for
     *      a request.  The default setting of 60 seconds is recommended.
     *      Other settings will require tweaks to the Strophe.TIMEOUT value.
     *    (Integer) hold - The optional HTTPBIND hold value.  This is the
     *      number of connections the server will hold at one time.  This
     *      should almost always be set to 1 (the default).
     *    (Integer) wind - The optional HTTBIND window value.  This is the
     *      allowed range of request ids that are valid.  The default is 5.
     */
    attach: function (jid, sid, rid, callback, wait, hold, wind) {
        if (this._proto instanceof Strophe.Bosh) {
            this._proto._attach(jid, sid, rid, callback, wait, hold, wind);
        } else {
            throw {
                name: 'StropheSessionError',
                message: 'The "attach" method can only be used with a BOSH connection.'
            };
        }
    },

    /** Function: restore
     *  Attempt to restore a cached BOSH session.
     *
     *  This function is only useful in conjunction with providing the
     *  "keepalive":true option when instantiating a new Strophe.Connection.
     *
     *  When "keepalive" is set to true, Strophe will cache the BOSH tokens
     *  RID (Request ID) and SID (Session ID) and then when this function is
     *  called, it will attempt to restore the session from those cached
     *  tokens.
     *
     *  This function must therefore be called instead of connect or attach.
     *
     *  For an example on how to use it, please see examples/restore.js
     *
     *  Parameters:
     *    (String) jid - The user's JID.  This may be a bare JID or a full JID.
     *    (Function) callback - The connect callback function.
     *    (Integer) wait - The optional HTTPBIND wait value.  This is the
     *      time the server will wait before returning an empty result for
     *      a request.  The default setting of 60 seconds is recommended.
     *    (Integer) hold - The optional HTTPBIND hold value.  This is the
     *      number of connections the server will hold at one time.  This
     *      should almost always be set to 1 (the default).
     *    (Integer) wind - The optional HTTBIND window value.  This is the
     *      allowed range of request ids that are valid.  The default is 5.
     */
    restore: function (jid, callback, wait, hold, wind) {
        if (this._sessionCachingSupported()) {
            this._proto._restore(jid, callback, wait, hold, wind);
        } else {
            throw {
                name: 'StropheSessionError',
                message: 'The "restore" method can only be used with a BOSH connection.'
            };
        }
    },

    /** PrivateFunction: _sessionCachingSupported
     * Checks whether sessionStorage and JSON are supported and whether we're
     * using BOSH.
     */
    _sessionCachingSupported: function () {
        if (this._proto instanceof Strophe.Bosh) {
            if (!JSON) { return false; }
            try {
                sessionStorage.setItem('_strophe_', '_strophe_');
                sessionStorage.removeItem('_strophe_');
            } catch (e) {
                return false;
            }
            return true;
        }
        return false;
    },

    /** Function: xmlInput
     *  User overrideable function that receives XML data coming into the
     *  connection.
     *
     *  The default function does nothing.  User code can override this with
     *  > Strophe.Connection.xmlInput = function (elem) {
     *  >   (user code)
     *  > };
     *
     *  Due to limitations of current Browsers' XML-Parsers the opening and closing
     *  <stream> tag for WebSocket-Connoctions will be passed as selfclosing here.
     *
     *  BOSH-Connections will have all stanzas wrapped in a <body> tag. See
     *  <Strophe.Bosh.strip> if you want to strip this tag.
     *
     *  Parameters:
     *    (XMLElement) elem - The XML data received by the connection.
     */
    /* jshint unused:false */
    xmlInput: function (elem) {
        return;
    },
    /* jshint unused:true */

    /** Function: xmlOutput
     *  User overrideable function that receives XML data sent to the
     *  connection.
     *
     *  The default function does nothing.  User code can override this with
     *  > Strophe.Connection.xmlOutput = function (elem) {
     *  >   (user code)
     *  > };
     *
     *  Due to limitations of current Browsers' XML-Parsers the opening and closing
     *  <stream> tag for WebSocket-Connoctions will be passed as selfclosing here.
     *
     *  BOSH-Connections will have all stanzas wrapped in a <body> tag. See
     *  <Strophe.Bosh.strip> if you want to strip this tag.
     *
     *  Parameters:
     *    (XMLElement) elem - The XMLdata sent by the connection.
     */
    /* jshint unused:false */
    xmlOutput: function (elem) {
        return;
    },
    /* jshint unused:true */

    /** Function: rawInput
     *  User overrideable function that receives raw data coming into the
     *  connection.
     *
     *  The default function does nothing.  User code can override this with
     *  > Strophe.Connection.rawInput = function (data) {
     *  >   (user code)
     *  > };
     *
     *  Parameters:
     *    (String) data - The data received by the connection.
     */
    /* jshint unused:false */
    rawInput: function (data) {
        return;
    },
    /* jshint unused:true */

    /** Function: rawOutput
     *  User overrideable function that receives raw data sent to the
     *  connection.
     *
     *  The default function does nothing.  User code can override this with
     *  > Strophe.Connection.rawOutput = function (data) {
     *  >   (user code)
     *  > };
     *
     *  Parameters:
     *    (String) data - The data sent by the connection.
     */
    /* jshint unused:false */
    rawOutput: function (data) {
        return;
    },
    /* jshint unused:true */

    /** Function: nextValidRid
     *  User overrideable function that receives the new valid rid.
     *
     *  The default function does nothing. User code can override this with
     *  > Strophe.Connection.nextValidRid = function (rid) {
     *  >    (user code)
     *  > };
     *
     *  Parameters:
     *    (Number) rid - The next valid rid
     */
    /* jshint unused:false */
    nextValidRid: function (rid) {
        return;
    },
    /* jshint unused:true */

    /** Function: send
     *  Send a stanza.
     *
     *  This function is called to push data onto the send queue to
     *  go out over the wire.  Whenever a request is sent to the BOSH
     *  server, all pending data is sent and the queue is flushed.
     *
     *  Parameters:
     *    (XMLElement |
     *     [XMLElement] |
     *     Strophe.Builder) elem - The stanza to send.
     */
    send: function (elem) {
        if (elem === null) { return ; }
        if (typeof(elem.sort) === "function") {
            for (var i = 0; i < elem.length; i++) {
                this._queueData(elem[i]);
            }
        } else if (typeof(elem.tree) === "function") {
            this._queueData(elem.tree());
        } else {
            this._queueData(elem);
        }

        this._proto._send();
    },

    /** Function: flush
     *  Immediately send any pending outgoing data.
     *
     *  Normally send() queues outgoing data until the next idle period
     *  (100ms), which optimizes network use in the common cases when
     *  several send()s are called in succession. flush() can be used to
     *  immediately send all pending data.
     */
    flush: function () {
        // cancel the pending idle period and run the idle function
        // immediately
        clearTimeout(this._idleTimeout);
        this._onIdle();
    },

    /** Function: sendPresence
     *  Helper function to send presence stanzas. The main benefit is for
     *  sending presence stanzas for which you expect a responding presence
     *  stanza with the same id (for example when leaving a chat room).
     *
     *  Parameters:
     *    (XMLElement) elem - The stanza to send.
     *    (Function) callback - The callback function for a successful request.
     *    (Function) errback - The callback function for a failed or timed
     *      out request.  On timeout, the stanza will be null.
     *    (Integer) timeout - The time specified in milliseconds for a
     *      timeout to occur.
     *
     *  Returns:
     *    The id used to send the presence.
     */
    sendPresence: function(elem, callback, errback, timeout) {
        var timeoutHandler = null;
        var that = this;
        if (typeof(elem.tree) === "function") {
            elem = elem.tree();
        }
        var id = elem.getAttribute('id');
        if (!id) { // inject id if not found
            id = this.getUniqueId("sendPresence");
            elem.setAttribute("id", id);
        }

        if (typeof callback === "function" || typeof errback === "function") {
            var handler = this.addHandler(function (stanza) {
                // remove timeout handler if there is one
                if (timeoutHandler) {
                    that.deleteTimedHandler(timeoutHandler);
                }
                var type = stanza.getAttribute('type');
                if (type === 'error') {
                    if (errback) {
                        errback(stanza);
                    }
                } else if (callback) {
                    callback(stanza);
                }
            }, null, 'presence', null, id);

            // if timeout specified, set up a timeout handler.
            if (timeout) {
                timeoutHandler = this.addTimedHandler(timeout, function () {
                    // get rid of normal handler
                    that.deleteHandler(handler);
                    // call errback on timeout with null stanza
                    if (errback) {
                        errback(null);
                    }
                    return false;
                });
            }
        }
        this.send(elem);
        return id;
    },

    /** Function: sendIQ
     *  Helper function to send IQ stanzas.
     *
     *  Parameters:
     *    (XMLElement) elem - The stanza to send.
     *    (Function) callback - The callback function for a successful request.
     *    (Function) errback - The callback function for a failed or timed
     *      out request.  On timeout, the stanza will be null.
     *    (Integer) timeout - The time specified in milliseconds for a
     *      timeout to occur.
     *
     *  Returns:
     *    The id used to send the IQ.
    */
    sendIQ: function(elem, callback, errback, timeout) {
        var timeoutHandler = null;
        var that = this;
        if (typeof(elem.tree) === "function") {
            elem = elem.tree();
        }
        var id = elem.getAttribute('id');
        if (!id) { // inject id if not found
            id = this.getUniqueId("sendIQ");
            elem.setAttribute("id", id);
        }

        if (typeof callback === "function" || typeof errback === "function") {
            var handler = this.addHandler(function (stanza) {
                // remove timeout handler if there is one
                if (timeoutHandler) {
                    that.deleteTimedHandler(timeoutHandler);
                }
                var iqtype = stanza.getAttribute('type');
                if (iqtype === 'result') {
                    if (callback) {
                        callback(stanza);
                    }
                } else if (iqtype === 'error') {
                    if (errback) {
                        errback(stanza);
                    }
                } else {
                    throw {
                        name: "StropheError",
                        message: "Got bad IQ type of " + iqtype
                    };
                }
            }, null, 'iq', ['error', 'result'], id);

            // if timeout specified, set up a timeout handler.
            if (timeout) {
                timeoutHandler = this.addTimedHandler(timeout, function () {
                    // get rid of normal handler
                    that.deleteHandler(handler);
                    // call errback on timeout with null stanza
                    if (errback) {
                        errback(null);
                    }
                    return false;
                });
            }
        }
        this.send(elem);
        return id;
    },

    /** PrivateFunction: _queueData
     *  Queue outgoing data for later sending.  Also ensures that the data
     *  is a DOMElement.
     */
    _queueData: function (element) {
        if (element === null ||
            !element.tagName ||
            !element.childNodes) {
            throw {
                name: "StropheError",
                message: "Cannot queue non-DOMElement."
            };
        }
        this._data.push(element);
    },

    /** PrivateFunction: _sendRestart
     *  Send an xmpp:restart stanza.
     */
    _sendRestart: function () {
        this._data.push("restart");
        this._proto._sendRestart();
        // XXX: setTimeout should be called only with function expressions (23974bc1)
        this._idleTimeout = setTimeout(function() {
            this._onIdle();
        }.bind(this), 100);
    },

    /** Function: addTimedHandler
     *  Add a timed handler to the connection.
     *
     *  This function adds a timed handler.  The provided handler will
     *  be called every period milliseconds until it returns false,
     *  the connection is terminated, or the handler is removed.  Handlers
     *  that wish to continue being invoked should return true.
     *
     *  Because of method binding it is necessary to save the result of
     *  this function if you wish to remove a handler with
     *  deleteTimedHandler().
     *
     *  Note that user handlers are not active until authentication is
     *  successful.
     *
     *  Parameters:
     *    (Integer) period - The period of the handler.
     *    (Function) handler - The callback function.
     *
     *  Returns:
     *    A reference to the handler that can be used to remove it.
     */
    addTimedHandler: function (period, handler) {
        var thand = new Strophe.TimedHandler(period, handler);
        this.addTimeds.push(thand);
        return thand;
    },

    /** Function: deleteTimedHandler
     *  Delete a timed handler for a connection.
     *
     *  This function removes a timed handler from the connection.  The
     *  handRef parameter is *not* the function passed to addTimedHandler(),
     *  but is the reference returned from addTimedHandler().
     *
     *  Parameters:
     *    (Strophe.TimedHandler) handRef - The handler reference.
     */
    deleteTimedHandler: function (handRef) {
        // this must be done in the Idle loop so that we don't change
        // the handlers during iteration
        this.removeTimeds.push(handRef);
    },

    /** Function: addHandler
     *  Add a stanza handler for the connection.
     *
     *  This function adds a stanza handler to the connection.  The
     *  handler callback will be called for any stanza that matches
     *  the parameters.  Note that if multiple parameters are supplied,
     *  they must all match for the handler to be invoked.
     *
     *  The handler will receive the stanza that triggered it as its argument.
     *  *The handler should return true if it is to be invoked again;
     *  returning false will remove the handler after it returns.*
     *
     *  As a convenience, the ns parameters applies to the top level element
     *  and also any of its immediate children.  This is primarily to make
     *  matching /iq/query elements easy.
     *
     *  Options
     *  ~~~~~~~
     *  With the options argument, you can specify boolean flags that affect how
     *  matches are being done.
     *
     *  Currently two flags exist:
     *
     *  - matchBareFromJid:
     *      When set to true, the from parameter and the
     *      from attribute on the stanza will be matched as bare JIDs instead
     *      of full JIDs. To use this, pass {matchBareFromJid: true} as the
     *      value of options. The default value for matchBareFromJid is false.
     *
     *  - ignoreNamespaceFragment:
     *      When set to true, a fragment specified on the stanza's namespace
     *      URL will be ignored when it's matched with the one configured for
     *      the handler.
     *
     *      This means that if you register like this:
     *      >   connection.addHandler(
     *      >       handler,
     *      >       'http://jabber.org/protocol/muc',
     *      >       null, null, null, null,
     *      >       {'ignoreNamespaceFragment': true}
     *      >   );
     *
     *      Then a stanza with XML namespace of
     *      'http://jabber.org/protocol/muc#user' will also be matched. If
     *      'ignoreNamespaceFragment' is false, then only stanzas with
     *      'http://jabber.org/protocol/muc' will be matched.
     *
     *  Deleting the handler
     *  ~~~~~~~~~~~~~~~~~~~~
     *  The return value should be saved if you wish to remove the handler
     *  with deleteHandler().
     *
     *  Parameters:
     *    (Function) handler - The user callback.
     *    (String) ns - The namespace to match.
     *    (String) name - The stanza name to match.
     *    (String|Array) type - The stanza type (or types if an array) to match.
     *    (String) id - The stanza id attribute to match.
     *    (String) from - The stanza from attribute to match.
     *    (String) options - The handler options
     *
     *  Returns:
     *    A reference to the handler that can be used to remove it.
     */
    addHandler: function (handler, ns, name, type, id, from, options) {
        var hand = new Strophe.Handler(handler, ns, name, type, id, from, options);
        this.addHandlers.push(hand);
        return hand;
    },

    /** Function: deleteHandler
     *  Delete a stanza handler for a connection.
     *
     *  This function removes a stanza handler from the connection.  The
     *  handRef parameter is *not* the function passed to addHandler(),
     *  but is the reference returned from addHandler().
     *
     *  Parameters:
     *    (Strophe.Handler) handRef - The handler reference.
     */
    deleteHandler: function (handRef) {
        // this must be done in the Idle loop so that we don't change
        // the handlers during iteration
        this.removeHandlers.push(handRef);
        // If a handler is being deleted while it is being added,
        // prevent it from getting added
        var i = this.addHandlers.indexOf(handRef);
        if (i >= 0) {
            this.addHandlers.splice(i, 1);
        }
    },

    /** Function: registerSASLMechanisms
     *
     * Register the SASL mechanisms which will be supported by this instance of
     * Strophe.Connection (i.e. which this XMPP client will support).
     *
     *  Parameters:
     *    (Array) mechanisms - Array of objects with Strophe.SASLMechanism prototypes
     *
     */
    registerSASLMechanisms: function (mechanisms) {
        this.mechanisms = {};
        mechanisms = mechanisms || [
            Strophe.SASLAnonymous,
            Strophe.SASLExternal,
            Strophe.SASLMD5,
            Strophe.SASLOAuthBearer,
            Strophe.SASLPlain,
            Strophe.SASLSHA1
        ];
        mechanisms.forEach(this.registerSASLMechanism.bind(this));
    },

    /** Function: registerSASLMechanism
     *
     * Register a single SASL mechanism, to be supported by this client.
     *
     *  Parameters:
     *    (Object) mechanism - Object with a Strophe.SASLMechanism prototype
     *
     */
    registerSASLMechanism: function (mechanism) {
        this.mechanisms[mechanism.prototype.name] = mechanism;
    },

    /** Function: disconnect
     *  Start the graceful disconnection process.
     *
     *  This function starts the disconnection process.  This process starts
     *  by sending unavailable presence and sending BOSH body of type
     *  terminate.  A timeout handler makes sure that disconnection happens
     *  even if the BOSH server does not respond.
     *  If the Connection object isn't connected, at least tries to abort all pending requests
     *  so the connection object won't generate successful requests (which were already opened).
     *
     *  The user supplied connection callback will be notified of the
     *  progress as this process happens.
     *
     *  Parameters:
     *    (String) reason - The reason the disconnect is occuring.
     */
    disconnect: function (reason) {
        this._changeConnectStatus(Strophe.Status.DISCONNECTING, reason);

        Strophe.info("Disconnect was called because: " + reason);
        if (this.connected) {
            var pres = false;
            this.disconnecting = true;
            if (this.authenticated) {
                pres = $pres({
                    xmlns: Strophe.NS.CLIENT,
                    type: 'unavailable'
                });
            }
            // setup timeout handler
            this._disconnectTimeout = this._addSysTimedHandler(
                3000, this._onDisconnectTimeout.bind(this));
            this._proto._disconnect(pres);
        } else {
            Strophe.info("Disconnect was called before Strophe connected to the server");
            this._proto._abortAllRequests();
            this._doDisconnect();
        }
    },

    /** PrivateFunction: _changeConnectStatus
     *  _Private_ helper function that makes sure plugins and the user's
     *  callback are notified of connection status changes.
     *
     *  Parameters:
     *    (Integer) status - the new connection status, one of the values
     *      in Strophe.Status
     *    (String) condition - the error condition or null
     */
    _changeConnectStatus: function (status, condition) {
        // notify all plugins listening for status changes
        for (var k in Strophe._connectionPlugins) {
            if (Strophe._connectionPlugins.hasOwnProperty(k)) {
                var plugin = this[k];
                if (plugin.statusChanged) {
                    try {
                        plugin.statusChanged(status, condition);
                    } catch (err) {
                        Strophe.error("" + k + " plugin caused an exception " +
                                      "changing status: " + err);
                    }
                }
            }
        }

        // notify the user's callback
        if (this.connect_callback) {
            try {
                this.connect_callback(status, condition);
            } catch (e) {
                Strophe._handleError(e);
                Strophe.error(
                    "User connection callback caused an "+"exception: "+e);
            }
        }
    },

    /** PrivateFunction: _doDisconnect
     *  _Private_ function to disconnect.
     *
     *  This is the last piece of the disconnection logic.  This resets the
     *  connection and alerts the user's connection callback.
     */
    _doDisconnect: function (condition) {
        if (typeof this._idleTimeout === "number") {
            clearTimeout(this._idleTimeout);
        }

        // Cancel Disconnect Timeout
        if (this._disconnectTimeout !== null) {
            this.deleteTimedHandler(this._disconnectTimeout);
            this._disconnectTimeout = null;
        }

        Strophe.info("_doDisconnect was called");
        this._proto._doDisconnect();

        this.authenticated = false;
        this.disconnecting = false;
        this.restored = false;

        // delete handlers
        this.handlers = [];
        this.timedHandlers = [];
        this.removeTimeds = [];
        this.removeHandlers = [];
        this.addTimeds = [];
        this.addHandlers = [];

        // tell the parent we disconnected
        this._changeConnectStatus(Strophe.Status.DISCONNECTED, condition);
        this.connected = false;
    },

    /** PrivateFunction: _dataRecv
     *  _Private_ handler to processes incoming data from the the connection.
     *
     *  Except for _connect_cb handling the initial connection request,
     *  this function handles the incoming data for all requests.  This
     *  function also fires stanza handlers that match each incoming
     *  stanza.
     *
     *  Parameters:
     *    (Strophe.Request) req - The request that has data ready.
     *    (string) req - The stanza a raw string (optiona).
     */
    _dataRecv: function (req, raw) {
        Strophe.info("_dataRecv called");
        var elem = this._proto._reqToData(req);
        if (elem === null) { return; }

        if (this.xmlInput !== Strophe.Connection.prototype.xmlInput) {
            if (elem.nodeName === this._proto.strip && elem.childNodes.length) {
                this.xmlInput(elem.childNodes[0]);
            } else {
                this.xmlInput(elem);
            }
        }
        if (this.rawInput !== Strophe.Connection.prototype.rawInput) {
            if (raw) {
                this.rawInput(raw);
            } else {
                this.rawInput(Strophe.serialize(elem));
            }
        }

        // remove handlers scheduled for deletion
        var i, hand;
        while (this.removeHandlers.length > 0) {
            hand = this.removeHandlers.pop();
            i = this.handlers.indexOf(hand);
            if (i >= 0) {
                this.handlers.splice(i, 1);
            }
        }

        // add handlers scheduled for addition
        while (this.addHandlers.length > 0) {
            this.handlers.push(this.addHandlers.pop());
        }

        // handle graceful disconnect
        if (this.disconnecting && this._proto._emptyQueue()) {
            this._doDisconnect();
            return;
        }

        var type = elem.getAttribute("type");
        var cond, conflict;
        if (type !== null && type === "terminate") {
            // Don't process stanzas that come in after disconnect
            if (this.disconnecting) {
                return;
            }

            // an error occurred
            cond = elem.getAttribute("condition");
            conflict = elem.getElementsByTagName("conflict");
            if (cond !== null) {
                if (cond === "remote-stream-error" && conflict.length > 0) {
                    cond = "conflict";
                }
                this._changeConnectStatus(Strophe.Status.CONNFAIL, cond);
            } else {
                this._changeConnectStatus(Strophe.Status.CONNFAIL, "unknown");
            }
            this._doDisconnect(cond);
            return;
        }

        // send each incoming stanza through the handler chain
        var that = this;
        Strophe.forEachChild(elem, null, function (child) {
            var i, newList;
            // process handlers
            newList = that.handlers;
            that.handlers = [];
            for (i = 0; i < newList.length; i++) {
                var hand = newList[i];
                // encapsulate 'handler.run' not to lose the whole handler list if
                // one of the handlers throws an exception
                try {
                    if (hand.isMatch(child) &&
                        (that.authenticated || !hand.user)) {
                        if (hand.run(child)) {
                            that.handlers.push(hand);
                        }
                    } else {
                        that.handlers.push(hand);
                    }
                } catch(e) {
                    // if the handler throws an exception, we consider it as false
                    Strophe.warn('Removing Strophe handlers due to uncaught exception: '+e.message);
                }
            }
        });
    },


    /** Attribute: mechanisms
     *  SASL Mechanisms available for Connection.
     */
    mechanisms: {},

    /** PrivateFunction: _connect_cb
     *  _Private_ handler for initial connection request.
     *
     *  This handler is used to process the initial connection request
     *  response from the BOSH server. It is used to set up authentication
     *  handlers and start the authentication process.
     *
     *  SASL authentication will be attempted if available, otherwise
     *  the code will fall back to legacy authentication.
     *
     *  Parameters:
     *    (Strophe.Request) req - The current request.
     *    (Function) _callback - low level (xmpp) connect callback function.
     *      Useful for plugins with their own xmpp connect callback (when their)
     *      want to do something special).
     */
    _connect_cb: function (req, _callback, raw) {
        Strophe.info("_connect_cb was called");
        this.connected = true;

        var bodyWrap;
        try {
            bodyWrap = this._proto._reqToData(req);
        } catch (e) {
            if (e !== "badformat") { throw e; }
            this._changeConnectStatus(Strophe.Status.CONNFAIL, 'bad-format');
            this._doDisconnect('bad-format');
        }
        if (!bodyWrap) { return; }

        if (this.xmlInput !== Strophe.Connection.prototype.xmlInput) {
            if (bodyWrap.nodeName === this._proto.strip && bodyWrap.childNodes.length) {
                this.xmlInput(bodyWrap.childNodes[0]);
            } else {
                this.xmlInput(bodyWrap);
            }
        }
        if (this.rawInput !== Strophe.Connection.prototype.rawInput) {
            if (raw) {
                this.rawInput(raw);
            } else {
                this.rawInput(Strophe.serialize(bodyWrap));
            }
        }

        var conncheck = this._proto._connect_cb(bodyWrap);
        if (conncheck === Strophe.Status.CONNFAIL) {
            return;
        }

        // Check for the stream:features tag
        var hasFeatures;
        if (bodyWrap.getElementsByTagNameNS) {
            hasFeatures = bodyWrap.getElementsByTagNameNS(Strophe.NS.STREAM, "features").length > 0;
        } else {
            hasFeatures = bodyWrap.getElementsByTagName("stream:features").length > 0 ||
                            bodyWrap.getElementsByTagName("features").length > 0;
        }
        if (!hasFeatures) {
            this._proto._no_auth_received(_callback);
            return;
        }

        var matched = [], i, mech;
        var mechanisms = bodyWrap.getElementsByTagName("mechanism");
        if (mechanisms.length > 0) {
            for (i = 0; i < mechanisms.length; i++) {
                mech = Strophe.getText(mechanisms[i]);
                if (this.mechanisms[mech]) matched.push(this.mechanisms[mech]);
            }
        }
        if (matched.length === 0) {
            if (bodyWrap.getElementsByTagName("auth").length === 0) {
                // There are no matching SASL mechanisms and also no legacy
                // auth available.
                this._proto._no_auth_received(_callback);
                return;
            }
        }
        if (this.do_authentication !== false) {
            this.authenticate(matched);
        }
    },

    /** Function: sortMechanismsByPriority
     *
     *  Sorts an array of objects with prototype SASLMechanism according to
     *  their priorities.
     *
     *  Parameters:
     *    (Array) mechanisms - Array of SASL mechanisms.
     *
     */
    sortMechanismsByPriority: function (mechanisms) {
        // Sorting mechanisms according to priority.
        var i, j, higher, swap;
        for (i = 0; i < mechanisms.length - 1; ++i) {
            higher = i;
            for (j = i + 1; j < mechanisms.length; ++j) {
                if (mechanisms[j].prototype.priority > mechanisms[higher].prototype.priority) {
                    higher = j;
                }
            }
            if (higher !== i) {
                swap = mechanisms[i];
                mechanisms[i] = mechanisms[higher];
                mechanisms[higher] = swap;
            }
        }
        return mechanisms;
    },

    /** PrivateFunction: _attemptSASLAuth
     *
     *  Iterate through an array of SASL mechanisms and attempt authentication
     *  with the highest priority (enabled) mechanism.
     *
     *  Parameters:
     *    (Array) mechanisms - Array of SASL mechanisms.
     *
     *  Returns:
     *    (Boolean) mechanism_found - true or false, depending on whether a
     *          valid SASL mechanism was found with which authentication could be
     *          started.
     */
    _attemptSASLAuth: function (mechanisms) {
        mechanisms = this.sortMechanismsByPriority(mechanisms || []);
        var i = 0, mechanism_found = false;
        for (i = 0; i < mechanisms.length; ++i) {
            if (!mechanisms[i].prototype.test(this)) {
                continue;
            }
            this._sasl_success_handler = this._addSysHandler(
                this._sasl_success_cb.bind(this), null,
                "success", null, null);
            this._sasl_failure_handler = this._addSysHandler(
                this._sasl_failure_cb.bind(this), null,
                "failure", null, null);
            this._sasl_challenge_handler = this._addSysHandler(
                this._sasl_challenge_cb.bind(this), null,
                "challenge", null, null);

            this._sasl_mechanism = new mechanisms[i]();
            this._sasl_mechanism.onStart(this);

            var request_auth_exchange = $build("auth", {
                xmlns: Strophe.NS.SASL,
                mechanism: this._sasl_mechanism.name
            });
            if (this._sasl_mechanism.isClientFirst) {
                var response = this._sasl_mechanism.onChallenge(this, null);
                request_auth_exchange.t(btoa(response));
            }
            this.send(request_auth_exchange.tree());
            mechanism_found = true;
            break;
        }
        return mechanism_found;
    },

    /** PrivateFunction: _attemptLegacyAuth
     *
     *  Attempt legacy (i.e. non-SASL) authentication.
     *
     */
    _attemptLegacyAuth: function () {
        if (Strophe.getNodeFromJid(this.jid) === null) {
            // we don't have a node, which is required for non-anonymous
            // client connections
            this._changeConnectStatus(
                Strophe.Status.CONNFAIL,
                'x-strophe-bad-non-anon-jid'
            );
            this.disconnect('x-strophe-bad-non-anon-jid');
        } else {
            // Fall back to legacy authentication
            this._changeConnectStatus(Strophe.Status.AUTHENTICATING, null);
            this._addSysHandler(
                this._auth1_cb.bind(this),
                null, null, null, "_auth_1"
            );
            this.send($iq({
                    'type': "get",
                    'to': this.domain,
                    'id': "_auth_1"
                }).c("query", {xmlns: Strophe.NS.AUTH})
                .c("username", {}).t(Strophe.getNodeFromJid(this.jid))
                .tree());
        }
    },

    /** Function: authenticate
     * Set up authentication
     *
     *  Continues the initial connection request by setting up authentication
     *  handlers and starting the authentication process.
     *
     *  SASL authentication will be attempted if available, otherwise
     *  the code will fall back to legacy authentication.
     *
     *  Parameters:
     *    (Array) matched - Array of SASL mechanisms supported.
     *
     */
    authenticate: function (matched) {
        if (!this._attemptSASLAuth(matched)) {
            this._attemptLegacyAuth();
        }
    },

    /** PrivateFunction: _sasl_challenge_cb
     *  _Private_ handler for the SASL challenge
     *
     */
    _sasl_challenge_cb: function(elem) {
      var challenge = atob(Strophe.getText(elem));
      var response = this._sasl_mechanism.onChallenge(this, challenge);
      var stanza = $build('response', {
          'xmlns': Strophe.NS.SASL
      });
      if (response !== "") {
        stanza.t(btoa(response));
      }
      this.send(stanza.tree());
      return true;
    },

    /** PrivateFunction: _auth1_cb
     *  _Private_ handler for legacy authentication.
     *
     *  This handler is called in response to the initial <iq type='get'/>
     *  for legacy authentication.  It builds an authentication <iq/> and
     *  sends it, creating a handler (calling back to _auth2_cb()) to
     *  handle the result
     *
     *  Parameters:
     *    (XMLElement) elem - The stanza that triggered the callback.
     *
     *  Returns:
     *    false to remove the handler.
     */
    /* jshint unused:false */
    _auth1_cb: function (elem) {
        // build plaintext auth iq
        var iq = $iq({type: "set", id: "_auth_2"})
            .c('query', {xmlns: Strophe.NS.AUTH})
            .c('username', {}).t(Strophe.getNodeFromJid(this.jid))
            .up()
            .c('password').t(this.pass);

        if (!Strophe.getResourceFromJid(this.jid)) {
            // since the user has not supplied a resource, we pick
            // a default one here.  unlike other auth methods, the server
            // cannot do this for us.
            this.jid = Strophe.getBareJidFromJid(this.jid) + '/strophe';
        }
        iq.up().c('resource', {}).t(Strophe.getResourceFromJid(this.jid));

        this._addSysHandler(this._auth2_cb.bind(this), null,
                            null, null, "_auth_2");
        this.send(iq.tree());
        return false;
    },
    /* jshint unused:true */

    /** PrivateFunction: _sasl_success_cb
     *  _Private_ handler for succesful SASL authentication.
     *
     *  Parameters:
     *    (XMLElement) elem - The matching stanza.
     *
     *  Returns:
     *    false to remove the handler.
     */
    _sasl_success_cb: function (elem) {
        if (this._sasl_data["server-signature"]) {
            var serverSignature;
            var success = atob(Strophe.getText(elem));
            var attribMatch = /([a-z]+)=([^,]+)(,|$)/;
            var matches = success.match(attribMatch);
            if (matches[1] === "v") {
                serverSignature = matches[2];
            }

            if (serverSignature !== this._sasl_data["server-signature"]) {
              // remove old handlers
              this.deleteHandler(this._sasl_failure_handler);
              this._sasl_failure_handler = null;
              if (this._sasl_challenge_handler) {
                this.deleteHandler(this._sasl_challenge_handler);
                this._sasl_challenge_handler = null;
              }

              this._sasl_data = {};
              return this._sasl_failure_cb(null);
            }
        }
        Strophe.info("SASL authentication succeeded.");

        if (this._sasl_mechanism) {
          this._sasl_mechanism.onSuccess();
        }

        // remove old handlers
        this.deleteHandler(this._sasl_failure_handler);
        this._sasl_failure_handler = null;
        if (this._sasl_challenge_handler) {
            this.deleteHandler(this._sasl_challenge_handler);
            this._sasl_challenge_handler = null;
        }

        var streamfeature_handlers = [];
        var wrapper = function(handlers, elem) {
            while (handlers.length) {
                this.deleteHandler(handlers.pop());
            }
            this._sasl_auth1_cb.bind(this)(elem);
            return false;
        };
        streamfeature_handlers.push(this._addSysHandler(function(elem) {
            wrapper.bind(this)(streamfeature_handlers, elem);
        }.bind(this), null, "stream:features", null, null));
        streamfeature_handlers.push(this._addSysHandler(function(elem) {
            wrapper.bind(this)(streamfeature_handlers, elem);
        }.bind(this), Strophe.NS.STREAM, "features", null, null));

        // we must send an xmpp:restart now
        this._sendRestart();

        return false;
    },

    /** PrivateFunction: _sasl_auth1_cb
     *  _Private_ handler to start stream binding.
     *
     *  Parameters:
     *    (XMLElement) elem - The matching stanza.
     *
     *  Returns:
     *    false to remove the handler.
     */
    _sasl_auth1_cb: function (elem) {
        // save stream:features for future usage
        this.features = elem;
        var i, child;
        for (i = 0; i < elem.childNodes.length; i++) {
            child = elem.childNodes[i];
            if (child.nodeName === 'bind') {
                this.do_bind = true;
            }

            if (child.nodeName === 'session') {
                this.do_session = true;
            }
        }

        if (!this.do_bind) {
            this._changeConnectStatus(Strophe.Status.AUTHFAIL, null);
            return false;
        } else {
            this._addSysHandler(this._sasl_bind_cb.bind(this), null, null,
                                null, "_bind_auth_2");

            var resource = Strophe.getResourceFromJid(this.jid);
            if (resource) {
                this.send($iq({type: "set", id: "_bind_auth_2"})
                          .c('bind', {xmlns: Strophe.NS.BIND})
                          .c('resource', {}).t(resource).tree());
            } else {
                this.send($iq({type: "set", id: "_bind_auth_2"})
                          .c('bind', {xmlns: Strophe.NS.BIND})
                          .tree());
            }
        }
        return false;
    },

    /** PrivateFunction: _sasl_bind_cb
     *  _Private_ handler for binding result and session start.
     *
     *  Parameters:
     *    (XMLElement) elem - The matching stanza.
     *
     *  Returns:
     *    false to remove the handler.
     */
    _sasl_bind_cb: function (elem) {
        if (elem.getAttribute("type") === "error") {
            Strophe.info("SASL binding failed.");
            var conflict = elem.getElementsByTagName("conflict"), condition;
            if (conflict.length > 0) {
                condition = 'conflict';
            }
            this._changeConnectStatus(Strophe.Status.AUTHFAIL, condition);
            return false;
        }

        // TODO - need to grab errors
        var bind = elem.getElementsByTagName("bind");
        var jidNode;
        if (bind.length > 0) {
            // Grab jid
            jidNode = bind[0].getElementsByTagName("jid");
            if (jidNode.length > 0) {
                this.jid = Strophe.getText(jidNode[0]);

                if (this.do_session) {
                    this._addSysHandler(this._sasl_session_cb.bind(this),
                                        null, null, null, "_session_auth_2");

                    this.send($iq({type: "set", id: "_session_auth_2"})
                                  .c('session', {xmlns: Strophe.NS.SESSION})
                                  .tree());
                } else {
                    this.authenticated = true;
                    this._changeConnectStatus(Strophe.Status.CONNECTED, null);
                }
            }
        } else {
            Strophe.info("SASL binding failed.");
            this._changeConnectStatus(Strophe.Status.AUTHFAIL, null);
            return false;
        }
    },

    /** PrivateFunction: _sasl_session_cb
     *  _Private_ handler to finish successful SASL connection.
     *
     *  This sets Connection.authenticated to true on success, which
     *  starts the processing of user handlers.
     *
     *  Parameters:
     *    (XMLElement) elem - The matching stanza.
     *
     *  Returns:
     *    false to remove the handler.
     */
    _sasl_session_cb: function (elem) {
        if (elem.getAttribute("type") === "result") {
            this.authenticated = true;
            this._changeConnectStatus(Strophe.Status.CONNECTED, null);
        } else if (elem.getAttribute("type") === "error") {
            Strophe.info("Session creation failed.");
            this._changeConnectStatus(Strophe.Status.AUTHFAIL, null);
            return false;
        }
        return false;
    },

    /** PrivateFunction: _sasl_failure_cb
     *  _Private_ handler for SASL authentication failure.
     *
     *  Parameters:
     *    (XMLElement) elem - The matching stanza.
     *
     *  Returns:
     *    false to remove the handler.
     */
    /* jshint unused:false */
    _sasl_failure_cb: function (elem) {
        // delete unneeded handlers
        if (this._sasl_success_handler) {
            this.deleteHandler(this._sasl_success_handler);
            this._sasl_success_handler = null;
        }
        if (this._sasl_challenge_handler) {
            this.deleteHandler(this._sasl_challenge_handler);
            this._sasl_challenge_handler = null;
        }

        if(this._sasl_mechanism)
          this._sasl_mechanism.onFailure();
        this._changeConnectStatus(Strophe.Status.AUTHFAIL, null);
        return false;
    },
    /* jshint unused:true */

    /** PrivateFunction: _auth2_cb
     *  _Private_ handler to finish legacy authentication.
     *
     *  This handler is called when the result from the jabber:iq:auth
     *  <iq/> stanza is returned.
     *
     *  Parameters:
     *    (XMLElement) elem - The stanza that triggered the callback.
     *
     *  Returns:
     *    false to remove the handler.
     */
    _auth2_cb: function (elem) {
        if (elem.getAttribute("type") === "result") {
            this.authenticated = true;
            this._changeConnectStatus(Strophe.Status.CONNECTED, null);
        } else if (elem.getAttribute("type") === "error") {
            this._changeConnectStatus(Strophe.Status.AUTHFAIL, null);
            this.disconnect('authentication failed');
        }
        return false;
    },

    /** PrivateFunction: _addSysTimedHandler
     *  _Private_ function to add a system level timed handler.
     *
     *  This function is used to add a Strophe.TimedHandler for the
     *  library code.  System timed handlers are allowed to run before
     *  authentication is complete.
     *
     *  Parameters:
     *    (Integer) period - The period of the handler.
     *    (Function) handler - The callback function.
     */
    _addSysTimedHandler: function (period, handler) {
        var thand = new Strophe.TimedHandler(period, handler);
        thand.user = false;
        this.addTimeds.push(thand);
        return thand;
    },

    /** PrivateFunction: _addSysHandler
     *  _Private_ function to add a system level stanza handler.
     *
     *  This function is used to add a Strophe.Handler for the
     *  library code.  System stanza handlers are allowed to run before
     *  authentication is complete.
     *
     *  Parameters:
     *    (Function) handler - The callback function.
     *    (String) ns - The namespace to match.
     *    (String) name - The stanza name to match.
     *    (String) type - The stanza type attribute to match.
     *    (String) id - The stanza id attribute to match.
     */
    _addSysHandler: function (handler, ns, name, type, id) {
        var hand = new Strophe.Handler(handler, ns, name, type, id);
        hand.user = false;
        this.addHandlers.push(hand);
        return hand;
    },

    /** PrivateFunction: _onDisconnectTimeout
     *  _Private_ timeout handler for handling non-graceful disconnection.
     *
     *  If the graceful disconnect process does not complete within the
     *  time allotted, this handler finishes the disconnect anyway.
     *
     *  Returns:
     *    false to remove the handler.
     */
    _onDisconnectTimeout: function () {
        Strophe.info("_onDisconnectTimeout was called");
        this._changeConnectStatus(Strophe.Status.CONNTIMEOUT, null);
        this._proto._onDisconnectTimeout();
        // actually disconnect
        this._doDisconnect();
        return false;
    },

    /** PrivateFunction: _onIdle
     *  _Private_ handler to process events during idle cycle.
     *
     *  This handler is called every 100ms to fire timed handlers that
     *  are ready and keep poll requests going.
     */
    _onIdle: function () {
        var i, thand, since, newList;

        // add timed handlers scheduled for addition
        // NOTE: we add before remove in the case a timed handler is
        // added and then deleted before the next _onIdle() call.
        while (this.addTimeds.length > 0) {
            this.timedHandlers.push(this.addTimeds.pop());
        }

        // remove timed handlers that have been scheduled for deletion
        while (this.removeTimeds.length > 0) {
            thand = this.removeTimeds.pop();
            i = this.timedHandlers.indexOf(thand);
            if (i >= 0) {
                this.timedHandlers.splice(i, 1);
            }
        }

        // call ready timed handlers
        var now = new Date().getTime();
        newList = [];
        for (i = 0; i < this.timedHandlers.length; i++) {
            thand = this.timedHandlers[i];
            if (this.authenticated || !thand.user) {
                since = thand.lastCalled + thand.period;
                if (since - now <= 0) {
                    if (thand.run()) {
                        newList.push(thand);
                    }
                } else {
                    newList.push(thand);
                }
            }
        }
        this.timedHandlers = newList;

        clearTimeout(this._idleTimeout);

        this._proto._onIdle();

        // reactivate the timer only if connected
        if (this.connected) {
            // XXX: setTimeout should be called only with function expressions (23974bc1)
            this._idleTimeout = setTimeout(function() {
                this._onIdle();
            }.bind(this), 100);
        }
    }
};

/** Class: Strophe.SASLMechanism
 *
 *  encapsulates SASL authentication mechanisms.
 *
 *  User code may override the priority for each mechanism or disable it completely.
 *  See <priority> for information about changing priority and <test> for informatian on
 *  how to disable a mechanism.
 *
 *  By default, all mechanisms are enabled and the priorities are
 *
 *      OAUTHBEARER - 60
 *      SCRAM-SHA1 - 50
 *      DIGEST-MD5 - 40
 *      PLAIN - 30
 *      ANONYMOUS - 20
 *      EXTERNAL - 10
 *
 *  See: Strophe.Connection.addSupportedSASLMechanisms
 */

/**
 * PrivateConstructor: Strophe.SASLMechanism
 * SASL auth mechanism abstraction.
 *
 *  Parameters:
 *    (String) name - SASL Mechanism name.
 *    (Boolean) isClientFirst - If client should send response first without challenge.
 *    (Number) priority - Priority.
 *
 *  Returns:
 *    A new Strophe.SASLMechanism object.
 */
Strophe.SASLMechanism = function(name, isClientFirst, priority) {
  /** PrivateVariable: name
   *  Mechanism name.
   */
  this.name = name;
  /** PrivateVariable: isClientFirst
   *  If client sends response without initial server challenge.
   */
  this.isClientFirst = isClientFirst;
  /** Variable: priority
   *  Determines which <SASLMechanism> is chosen for authentication (Higher is better).
   *  Users may override this to prioritize mechanisms differently.
   *
   *  In the default configuration the priorities are
   *
   *  SCRAM-SHA1 - 40
   *  DIGEST-MD5 - 30
   *  Plain - 20
   *
   *  Example: (This will cause Strophe to choose the mechanism that the server sent first)
   *
   *  > Strophe.SASLMD5.priority = Strophe.SASLSHA1.priority;
   *
   *  See <SASL mechanisms> for a list of available mechanisms.
   *
   */
  this.priority = priority;
};

Strophe.SASLMechanism.prototype = {
  /**
   *  Function: test
   *  Checks if mechanism able to run.
   *  To disable a mechanism, make this return false;
   *
   *  To disable plain authentication run
   *  > Strophe.SASLPlain.test = function() {
   *  >   return false;
   *  > }
   *
   *  See <SASL mechanisms> for a list of available mechanisms.
   *
   *  Parameters:
   *    (Strophe.Connection) connection - Target Connection.
   *
   *  Returns:
   *    (Boolean) If mechanism was able to run.
   */
  /* jshint unused:false */
  test: function(connection) {
    return true;
  },
  /* jshint unused:true */

  /** PrivateFunction: onStart
   *  Called before starting mechanism on some connection.
   *
   *  Parameters:
   *    (Strophe.Connection) connection - Target Connection.
   */
  onStart: function(connection) {
    this._connection = connection;
  },

  /** PrivateFunction: onChallenge
   *  Called by protocol implementation on incoming challenge. If client is
   *  first (isClientFirst === true) challenge will be null on the first call.
   *
   *  Parameters:
   *    (Strophe.Connection) connection - Target Connection.
   *    (String) challenge - current challenge to handle.
   *
   *  Returns:
   *    (String) Mechanism response.
   */
  /* jshint unused:false */
  onChallenge: function(connection, challenge) {
    throw new Error("You should implement challenge handling!");
  },
  /* jshint unused:true */

  /** PrivateFunction: onFailure
   *  Protocol informs mechanism implementation about SASL failure.
   */
  onFailure: function() {
    this._connection = null;
  },

  /** PrivateFunction: onSuccess
   *  Protocol informs mechanism implementation about SASL success.
   */
  onSuccess: function() {
    this._connection = null;
  }
};

  /** Constants: SASL mechanisms
   *  Available authentication mechanisms
   *
   *  Strophe.SASLAnonymous - SASL ANONYMOUS authentication.
   *  Strophe.SASLPlain - SASL PLAIN authentication.
   *  Strophe.SASLMD5 - SASL DIGEST-MD5 authentication
   *  Strophe.SASLSHA1 - SASL SCRAM-SHA1 authentication
   *  Strophe.SASLOAuthBearer - SASL OAuth Bearer authentication
   *  Strophe.SASLExternal - SASL EXTERNAL authentication
   */

// Building SASL callbacks

/** PrivateConstructor: SASLAnonymous
 *  SASL ANONYMOUS authentication.
 */
Strophe.SASLAnonymous = function() {};
Strophe.SASLAnonymous.prototype = new Strophe.SASLMechanism("ANONYMOUS", false, 20);

Strophe.SASLAnonymous.prototype.test = function(connection) {
    return connection.authcid === null;
};


/** PrivateConstructor: SASLPlain
 *  SASL PLAIN authentication.
 */
Strophe.SASLPlain = function() {};
Strophe.SASLPlain.prototype = new Strophe.SASLMechanism("PLAIN", true, 30);

Strophe.SASLPlain.prototype.test = function(connection) {
    return connection.authcid !== null;
};

Strophe.SASLPlain.prototype.onChallenge = function(connection) {
    var auth_str = connection.authzid;
    auth_str = auth_str + "\u0000";
    auth_str = auth_str + connection.authcid;
    auth_str = auth_str + "\u0000";
    auth_str = auth_str + connection.pass;
    return utils.utf16to8(auth_str);
};


/** PrivateConstructor: SASLSHA1
 *  SASL SCRAM SHA 1 authentication.
 */
Strophe.SASLSHA1 = function() {};
Strophe.SASLSHA1.prototype = new Strophe.SASLMechanism("SCRAM-SHA-1", true, 50);

Strophe.SASLSHA1.prototype.test = function(connection) {
    return connection.authcid !== null;
};

Strophe.SASLSHA1.prototype.onChallenge = function(connection, challenge, test_cnonce) {
  var cnonce = test_cnonce || MD5.hexdigest(Math.random() * 1234567890);
  var auth_str = "n=" + utils.utf16to8(connection.authcid);
  auth_str += ",r=";
  auth_str += cnonce;
  connection._sasl_data.cnonce = cnonce;
  connection._sasl_data["client-first-message-bare"] = auth_str;

  auth_str = "n,," + auth_str;

  this.onChallenge = function (connection, challenge) {
    var nonce, salt, iter, Hi, U, U_old, i, k, pass;
    var clientKey, serverKey, clientSignature;
    var responseText = "c=biws,";
    var authMessage = connection._sasl_data["client-first-message-bare"] + "," +
      challenge + ",";
    var cnonce = connection._sasl_data.cnonce;
    var attribMatch = /([a-z]+)=([^,]+)(,|$)/;

    while (challenge.match(attribMatch)) {
      var matches = challenge.match(attribMatch);
      challenge = challenge.replace(matches[0], "");
      switch (matches[1]) {
      case "r":
        nonce = matches[2];
        break;
      case "s":
        salt = matches[2];
        break;
      case "i":
        iter = matches[2];
        break;
      }
    }

    if (nonce.substr(0, cnonce.length) !== cnonce) {
      connection._sasl_data = {};
      return connection._sasl_failure_cb();
    }

    responseText += "r=" + nonce;
    authMessage += responseText;

    salt = atob(salt);
    salt += "\x00\x00\x00\x01";

    pass = utils.utf16to8(connection.pass);
    Hi = U_old = SHA1.core_hmac_sha1(pass, salt);
    for (i = 1; i < iter; i++) {
      U = SHA1.core_hmac_sha1(pass, SHA1.binb2str(U_old));
      for (k = 0; k < 5; k++) {
        Hi[k] ^= U[k];
      }
      U_old = U;
    }
    Hi = SHA1.binb2str(Hi);

    clientKey = SHA1.core_hmac_sha1(Hi, "Client Key");
    serverKey = SHA1.str_hmac_sha1(Hi, "Server Key");
    clientSignature = SHA1.core_hmac_sha1(SHA1.str_sha1(SHA1.binb2str(clientKey)), authMessage);
    connection._sasl_data["server-signature"] = SHA1.b64_hmac_sha1(serverKey, authMessage);

    for (k = 0; k < 5; k++) {
      clientKey[k] ^= clientSignature[k];
    }

    responseText += ",p=" + btoa(SHA1.binb2str(clientKey));
    return responseText;
  }.bind(this);

  return auth_str;
};


/** PrivateConstructor: SASLMD5
 *  SASL DIGEST MD5 authentication.
 */
Strophe.SASLMD5 = function() {};
Strophe.SASLMD5.prototype = new Strophe.SASLMechanism("DIGEST-MD5", false, 40);

Strophe.SASLMD5.prototype.test = function(connection) {
    return connection.authcid !== null;
};

/** PrivateFunction: _quote
 *  _Private_ utility function to backslash escape and quote strings.
 *
 *  Parameters:
 *    (String) str - The string to be quoted.
 *
 *  Returns:
 *    quoted string
 */
Strophe.SASLMD5.prototype._quote = function (str) {
    return '"' + str.replace(/\\/g, "\\\\").replace(/"/g, '\\"') + '"';
    //" end string workaround for emacs
};

Strophe.SASLMD5.prototype.onChallenge = function(connection, challenge, test_cnonce) {
  var attribMatch = /([a-z]+)=("[^"]+"|[^,"]+)(?:,|$)/;
  var cnonce = test_cnonce || MD5.hexdigest("" + (Math.random() * 1234567890));
  var realm = "";
  var host = null;
  var nonce = "";
  var qop = "";
  var matches;

  while (challenge.match(attribMatch)) {
    matches = challenge.match(attribMatch);
    challenge = challenge.replace(matches[0], "");
    matches[2] = matches[2].replace(/^"(.+)"$/, "$1");
    switch (matches[1]) {
    case "realm":
      realm = matches[2];
      break;
    case "nonce":
      nonce = matches[2];
      break;
    case "qop":
      qop = matches[2];
      break;
    case "host":
      host = matches[2];
      break;
    }
  }

  var digest_uri = connection.servtype + "/" + connection.domain;
  if (host !== null) {
    digest_uri = digest_uri + "/" + host;
  }

  var cred = utils.utf16to8(connection.authcid + ":" + realm + ":" + this._connection.pass);
  var A1 = MD5.hash(cred) + ":" + nonce + ":" + cnonce;
  var A2 = 'AUTHENTICATE:' + digest_uri;

  var responseText = "";
  responseText += 'charset=utf-8,';
  responseText += 'username=' + this._quote(utils.utf16to8(connection.authcid)) + ',';
  responseText += 'realm=' + this._quote(realm) + ',';
  responseText += 'nonce=' + this._quote(nonce) + ',';
  responseText += 'nc=00000001,';
  responseText += 'cnonce=' + this._quote(cnonce) + ',';
  responseText += 'digest-uri=' + this._quote(digest_uri) + ',';
  responseText += 'response=' + MD5.hexdigest(MD5.hexdigest(A1) + ":" +
                                              nonce + ":00000001:" +
                                              cnonce + ":auth:" +
                                              MD5.hexdigest(A2)) + ",";
  responseText += 'qop=auth';

  this.onChallenge = function () {
      return "";
  };
  return responseText;
};


/** PrivateConstructor: SASLOAuthBearer
 *  SASL OAuth Bearer authentication.
 */
Strophe.SASLOAuthBearer = function() {};
Strophe.SASLOAuthBearer.prototype = new Strophe.SASLMechanism("OAUTHBEARER", true, 60);

Strophe.SASLOAuthBearer.prototype.test = function(connection) {
    return connection.authcid !== null;
};

Strophe.SASLOAuthBearer.prototype.onChallenge = function(connection) {
    var auth_str = 'n,a=';
    auth_str = auth_str + connection.authzid;
    auth_str = auth_str + ',';
    auth_str = auth_str + "\u0001";
    auth_str = auth_str + 'auth=Bearer ';
    auth_str = auth_str + connection.pass;
    auth_str = auth_str + "\u0001";
    auth_str = auth_str + "\u0001";
    return utils.utf16to8(auth_str);
};


/** PrivateConstructor: SASLExternal
 *  SASL EXTERNAL authentication.
 *
 *  The EXTERNAL mechanism allows a client to request the server to use
 *  credentials established by means external to the mechanism to
 *  authenticate the client. The external means may be, for instance,
 *  TLS services.
 */
Strophe.SASLExternal = function() {};
Strophe.SASLExternal.prototype = new Strophe.SASLMechanism("EXTERNAL", true, 10);

Strophe.SASLExternal.prototype.onChallenge = function(connection) {
    /** According to XEP-178, an authzid SHOULD NOT be presented when the
     * authcid contained or implied in the client certificate is the JID (i.e.
     * authzid) with which the user wants to log in as.
     *
     * To NOT send the authzid, the user should therefore set the authcid equal
     * to the JID when instantiating a new Strophe.Connection object.
     */
    return connection.authcid === connection.authzid ? '' : connection.authzid;
};

return {
    'Strophe':         Strophe,
    '$build':          $build,
    '$iq':             $iq,
    '$msg':            $msg,
    '$pres':           $pres,
    'SHA1':            SHA1,
    'MD5':             MD5,
    'b64_hmac_sha1':   SHA1.b64_hmac_sha1,
    'b64_sha1':        SHA1.b64_sha1,
    'str_hmac_sha1':   SHA1.str_hmac_sha1,
    'str_sha1':        SHA1.str_sha1
};
}));

/*
    This program is distributed under the terms of the MIT license.
    Please see the LICENSE file for details.

    Copyright 2006-2008, OGG, LLC
*/

/* jshint undef: true, unused: true:, noarg: true, latedef: true */
/* global define, window, setTimeout, clearTimeout, XMLHttpRequest, ActiveXObject, Strophe, $build */

(function (root, factory) {
    if (typeof define === 'function' && define.amd) {
        define('strophe-bosh',['strophe-core'], function (core) {
            return factory(
                core.Strophe,
                core.$build
            );
        });
    } else {
        // Browser globals
        return factory(Strophe, $build);
    }
}(this, function (Strophe, $build) {

/** PrivateClass: Strophe.Request
 *  _Private_ helper class that provides a cross implementation abstraction
 *  for a BOSH related XMLHttpRequest.
 *
 *  The Strophe.Request class is used internally to encapsulate BOSH request
 *  information.  It is not meant to be used from user's code.
 */

/** PrivateConstructor: Strophe.Request
 *  Create and initialize a new Strophe.Request object.
 *
 *  Parameters:
 *    (XMLElement) elem - The XML data to be sent in the request.
 *    (Function) func - The function that will be called when the
 *      XMLHttpRequest readyState changes.
 *    (Integer) rid - The BOSH rid attribute associated with this request.
 *    (Integer) sends - The number of times this same request has been sent.
 */
Strophe.Request = function (elem, func, rid, sends) {
    this.id = ++Strophe._requestId;
    this.xmlData = elem;
    this.data = Strophe.serialize(elem);
    // save original function in case we need to make a new request
    // from this one.
    this.origFunc = func;
    this.func = func;
    this.rid = rid;
    this.date = NaN;
    this.sends = sends || 0;
    this.abort = false;
    this.dead = null;

    this.age = function () {
        if (!this.date) { return 0; }
        var now = new Date();
        return (now - this.date) / 1000;
    };
    this.timeDead = function () {
        if (!this.dead) { return 0; }
        var now = new Date();
        return (now - this.dead) / 1000;
    };
    this.xhr = this._newXHR();
};

Strophe.Request.prototype = {
    /** PrivateFunction: getResponse
     *  Get a response from the underlying XMLHttpRequest.
     *
     *  This function attempts to get a response from the request and checks
     *  for errors.
     *
     *  Throws:
     *    "parsererror" - A parser error occured.
     *    "badformat" - The entity has sent XML that cannot be processed.
     *
     *  Returns:
     *    The DOM element tree of the response.
     */
    getResponse: function () {
        var node = null;
        if (this.xhr.responseXML && this.xhr.responseXML.documentElement) {
            node = this.xhr.responseXML.documentElement;
            if (node.tagName === "parsererror") {
                Strophe.error("invalid response received");
                Strophe.error("responseText: " + this.xhr.responseText);
                Strophe.error("responseXML: " +
                              Strophe.serialize(this.xhr.responseXML));
                throw "parsererror";
            }
        } else if (this.xhr.responseText) {
            Strophe.error("invalid response received");
            Strophe.error("responseText: " + this.xhr.responseText);
            throw "badformat";
        }

        return node;
    },

    /** PrivateFunction: _newXHR
     *  _Private_ helper function to create XMLHttpRequests.
     *
     *  This function creates XMLHttpRequests across all implementations.
     *
     *  Returns:
     *    A new XMLHttpRequest.
     */
    _newXHR: function () {
        var xhr = null;
        if (window.XMLHttpRequest) {
            xhr = new XMLHttpRequest();
            if (xhr.overrideMimeType) {
                xhr.overrideMimeType("text/xml; charset=utf-8");
            }
        } else if (window.ActiveXObject) {
            xhr = new ActiveXObject("Microsoft.XMLHTTP");
        }
        // use Function.bind() to prepend ourselves as an argument
        xhr.onreadystatechange = this.func.bind(null, this);
        return xhr;
    }
};

/** Class: Strophe.Bosh
 *  _Private_ helper class that handles BOSH Connections
 *
 *  The Strophe.Bosh class is used internally by Strophe.Connection
 *  to encapsulate BOSH sessions. It is not meant to be used from user's code.
 */

/** File: bosh.js
 *  A JavaScript library to enable BOSH in Strophejs.
 *
 *  this library uses Bidirectional-streams Over Synchronous HTTP (BOSH)
 *  to emulate a persistent, stateful, two-way connection to an XMPP server.
 *  More information on BOSH can be found in XEP 124.
 */

/** PrivateConstructor: Strophe.Bosh
 *  Create and initialize a Strophe.Bosh object.
 *
 *  Parameters:
 *    (Strophe.Connection) connection - The Strophe.Connection that will use BOSH.
 *
 *  Returns:
 *    A new Strophe.Bosh object.
 */
Strophe.Bosh = function(connection) {
    this._conn = connection;
    /* request id for body tags */
    this.rid = Math.floor(Math.random() * 4294967295);
    /* The current session ID. */
    this.sid = null;

    // default BOSH values
    this.hold = 1;
    this.wait = 60;
    this.window = 5;
    this.errors = 0;
    this.inactivity = null;

    this._requests = [];
};

Strophe.Bosh.prototype = {
    /** Variable: strip
     *
     *  BOSH-Connections will have all stanzas wrapped in a <body> tag when
     *  passed to <Strophe.Connection.xmlInput> or <Strophe.Connection.xmlOutput>.
     *  To strip this tag, User code can set <Strophe.Bosh.strip> to "body":
     *
     *  > Strophe.Bosh.prototype.strip = "body";
     *
     *  This will enable stripping of the body tag in both
     *  <Strophe.Connection.xmlInput> and <Strophe.Connection.xmlOutput>.
     */
    strip: null,

    /** PrivateFunction: _buildBody
     *  _Private_ helper function to generate the <body/> wrapper for BOSH.
     *
     *  Returns:
     *    A Strophe.Builder with a <body/> element.
     */
    _buildBody: function () {
        var bodyWrap = $build('body', {
            rid: this.rid++,
            xmlns: Strophe.NS.HTTPBIND
        });
        if (this.sid !== null) {
            bodyWrap.attrs({sid: this.sid});
        }
        if (this._conn.options.keepalive && this._conn._sessionCachingSupported()) {
            this._cacheSession();
        }
        return bodyWrap;
    },

    /** PrivateFunction: _reset
     *  Reset the connection.
     *
     *  This function is called by the reset function of the Strophe Connection
     */
    _reset: function () {
        this.rid = Math.floor(Math.random() * 4294967295);
        this.sid = null;
        this.errors = 0;
        if (this._conn._sessionCachingSupported()) {
            window.sessionStorage.removeItem('strophe-bosh-session');
        }

        this._conn.nextValidRid(this.rid);
    },

    /** PrivateFunction: _connect
     *  _Private_ function that initializes the BOSH connection.
     *
     *  Creates and sends the Request that initializes the BOSH connection.
     */
    _connect: function (wait, hold, route) {
        this.wait = wait || this.wait;
        this.hold = hold || this.hold;
        this.errors = 0;

        // build the body tag
        var body = this._buildBody().attrs({
            to: this._conn.domain,
            "xml:lang": "en",
            wait: this.wait,
            hold: this.hold,
            content: "text/xml; charset=utf-8",
            ver: "1.6",
            "xmpp:version": "1.0",
            "xmlns:xmpp": Strophe.NS.BOSH
        });

        if(route){
            body.attrs({
                route: route
            });
        }

        var _connect_cb = this._conn._connect_cb;

        this._requests.push(
            new Strophe.Request(body.tree(),
                                this._onRequestStateChange.bind(
                                    this, _connect_cb.bind(this._conn)),
                                body.tree().getAttribute("rid")));
        this._throttledRequestHandler();
    },

    /** PrivateFunction: _attach
     *  Attach to an already created and authenticated BOSH session.
     *
     *  This function is provided to allow Strophe to attach to BOSH
     *  sessions which have been created externally, perhaps by a Web
     *  application.  This is often used to support auto-login type features
     *  without putting user credentials into the page.
     *
     *  Parameters:
     *    (String) jid - The full JID that is bound by the session.
     *    (String) sid - The SID of the BOSH session.
     *    (String) rid - The current RID of the BOSH session.  This RID
     *      will be used by the next request.
     *    (Function) callback The connect callback function.
     *    (Integer) wait - The optional HTTPBIND wait value.  This is the
     *      time the server will wait before returning an empty result for
     *      a request.  The default setting of 60 seconds is recommended.
     *      Other settings will require tweaks to the Strophe.TIMEOUT value.
     *    (Integer) hold - The optional HTTPBIND hold value.  This is the
     *      number of connections the server will hold at one time.  This
     *      should almost always be set to 1 (the default).
     *    (Integer) wind - The optional HTTBIND window value.  This is the
     *      allowed range of request ids that are valid.  The default is 5.
     */
    _attach: function (jid, sid, rid, callback, wait, hold, wind) {
        this._conn.jid = jid;
        this.sid = sid;
        this.rid = rid;

        this._conn.connect_callback = callback;

        this._conn.domain = Strophe.getDomainFromJid(this._conn.jid);

        this._conn.authenticated = true;
        this._conn.connected = true;

        this.wait = wait || this.wait;
        this.hold = hold || this.hold;
        this.window = wind || this.window;

        this._conn._changeConnectStatus(Strophe.Status.ATTACHED, null);
    },

    /** PrivateFunction: _restore
     *  Attempt to restore a cached BOSH session
     *
     *  Parameters:
     *    (String) jid - The full JID that is bound by the session.
     *      This parameter is optional but recommended, specifically in cases
     *      where prebinded BOSH sessions are used where it's important to know
     *      that the right session is being restored.
     *    (Function) callback The connect callback function.
     *    (Integer) wait - The optional HTTPBIND wait value.  This is the
     *      time the server will wait before returning an empty result for
     *      a request.  The default setting of 60 seconds is recommended.
     *      Other settings will require tweaks to the Strophe.TIMEOUT value.
     *    (Integer) hold - The optional HTTPBIND hold value.  This is the
     *      number of connections the server will hold at one time.  This
     *      should almost always be set to 1 (the default).
     *    (Integer) wind - The optional HTTBIND window value.  This is the
     *      allowed range of request ids that are valid.  The default is 5.
     */
    _restore: function (jid, callback, wait, hold, wind) {
        var session = JSON.parse(window.sessionStorage.getItem('strophe-bosh-session'));
        if (typeof session !== "undefined" &&
                   session !== null &&
                   session.rid &&
                   session.sid &&
                   session.jid &&
                   (    typeof jid === "undefined" ||
                        jid === null ||
                        Strophe.getBareJidFromJid(session.jid) === Strophe.getBareJidFromJid(jid) ||
                        // If authcid is null, then it's an anonymous login, so
                        // we compare only the domains:
                        ((Strophe.getNodeFromJid(jid) === null) && (Strophe.getDomainFromJid(session.jid) === jid))
                    )
        ) {
            this._conn.restored = true;
            this._attach(session.jid, session.sid, session.rid, callback, wait, hold, wind);
        } else {
            throw { name: "StropheSessionError", message: "_restore: no restoreable session." };
        }
    },

    /** PrivateFunction: _cacheSession
     *  _Private_ handler for the beforeunload event.
     *
     *  This handler is used to process the Bosh-part of the initial request.
     *  Parameters:
     *    (Strophe.Request) bodyWrap - The received stanza.
     */
    _cacheSession: function () {
        if (this._conn.authenticated) {
            if (this._conn.jid && this.rid && this.sid) {
                window.sessionStorage.setItem('strophe-bosh-session', JSON.stringify({
                    'jid': this._conn.jid,
                    'rid': this.rid,
                    'sid': this.sid
                }));
            }
        } else {
            window.sessionStorage.removeItem('strophe-bosh-session');
        }
    },

    /** PrivateFunction: _connect_cb
     *  _Private_ handler for initial connection request.
     *
     *  This handler is used to process the Bosh-part of the initial request.
     *  Parameters:
     *    (Strophe.Request) bodyWrap - The received stanza.
     */
    _connect_cb: function (bodyWrap) {
        var typ = bodyWrap.getAttribute("type");
        var cond, conflict;
        if (typ !== null && typ === "terminate") {
            // an error occurred
            cond = bodyWrap.getAttribute("condition");
            Strophe.error("BOSH-Connection failed: " + cond);
            conflict = bodyWrap.getElementsByTagName("conflict");
            if (cond !== null) {
                if (cond === "remote-stream-error" && conflict.length > 0) {
                    cond = "conflict";
                }
                this._conn._changeConnectStatus(Strophe.Status.CONNFAIL, cond);
            } else {
                this._conn._changeConnectStatus(Strophe.Status.CONNFAIL, "unknown");
            }
            this._conn._doDisconnect(cond);
            return Strophe.Status.CONNFAIL;
        }

        // check to make sure we don't overwrite these if _connect_cb is
        // called multiple times in the case of missing stream:features
        if (!this.sid) {
            this.sid = bodyWrap.getAttribute("sid");
        }
        var wind = bodyWrap.getAttribute('requests');
        if (wind) { this.window = parseInt(wind, 10); }
        var hold = bodyWrap.getAttribute('hold');
        if (hold) { this.hold = parseInt(hold, 10); }
        var wait = bodyWrap.getAttribute('wait');
        if (wait) { this.wait = parseInt(wait, 10); }
        var inactivity = bodyWrap.getAttribute('inactivity');
        if (inactivity) { this.inactivity = parseInt(inactivity, 10); }
    },

    /** PrivateFunction: _disconnect
     *  _Private_ part of Connection.disconnect for Bosh
     *
     *  Parameters:
     *    (Request) pres - This stanza will be sent before disconnecting.
     */
    _disconnect: function (pres) {
        this._sendTerminate(pres);
    },

    /** PrivateFunction: _doDisconnect
     *  _Private_ function to disconnect.
     *
     *  Resets the SID and RID.
     */
    _doDisconnect: function () {
        this.sid = null;
        this.rid = Math.floor(Math.random() * 4294967295);
        if (this._conn._sessionCachingSupported()) {
            window.sessionStorage.removeItem('strophe-bosh-session');
        }

        this._conn.nextValidRid(this.rid);
    },

    /** PrivateFunction: _emptyQueue
     * _Private_ function to check if the Request queue is empty.
     *
     *  Returns:
     *    True, if there are no Requests queued, False otherwise.
     */
    _emptyQueue: function () {
        return this._requests.length === 0;
    },

    /** PrivateFunction: _callProtocolErrorHandlers
     *  _Private_ function to call error handlers registered for HTTP errors.
     *
     *  Parameters:
     *    (Strophe.Request) req - The request that is changing readyState.
     */
    _callProtocolErrorHandlers: function (req) {
        var reqStatus = this._getRequestStatus(req),
            err_callback;
        err_callback = this._conn.protocolErrorHandlers.HTTP[reqStatus];
        if (err_callback) {
            err_callback.call(this, reqStatus);
        }
    },

    /** PrivateFunction: _hitError
     *  _Private_ function to handle the error count.
     *
     *  Requests are resent automatically until their error count reaches
     *  5.  Each time an error is encountered, this function is called to
     *  increment the count and disconnect if the count is too high.
     *
     *  Parameters:
     *    (Integer) reqStatus - The request status.
     */
    _hitError: function (reqStatus) {
        this.errors++;
        Strophe.warn("request errored, status: " + reqStatus +
                     ", number of errors: " + this.errors);
        if (this.errors > 4) {
            this._conn._onDisconnectTimeout();
        }
    },

    /** PrivateFunction: _no_auth_received
     *
     * Called on stream start/restart when no stream:features
     * has been received and sends a blank poll request.
     */
    _no_auth_received: function (_callback) {
        if (_callback) {
            _callback = _callback.bind(this._conn);
        } else {
            _callback = this._conn._connect_cb.bind(this._conn);
        }
        var body = this._buildBody();
        this._requests.push(
                new Strophe.Request(body.tree(),
                    this._onRequestStateChange.bind(
                        this, _callback.bind(this._conn)),
                    body.tree().getAttribute("rid")));
        this._throttledRequestHandler();
    },

    /** PrivateFunction: _onDisconnectTimeout
     *  _Private_ timeout handler for handling non-graceful disconnection.
     *
     *  Cancels all remaining Requests and clears the queue.
     */
    _onDisconnectTimeout: function () {
        this._abortAllRequests();
    },

    /** PrivateFunction: _abortAllRequests
     *  _Private_ helper function that makes sure all pending requests are aborted.
     */
    _abortAllRequests: function _abortAllRequests() {
        var req;
        while (this._requests.length > 0) {
            req = this._requests.pop();
            req.abort = true;
            req.xhr.abort();
            // jslint complains, but this is fine. setting to empty func
            // is necessary for IE6
            req.xhr.onreadystatechange = function () {}; // jshint ignore:line
        }
    },

    /** PrivateFunction: _onIdle
     *  _Private_ handler called by Strophe.Connection._onIdle
     *
     *  Sends all queued Requests or polls with empty Request if there are none.
     */
    _onIdle: function () {
        var data = this._conn._data;
        // if no requests are in progress, poll
        if (this._conn.authenticated && this._requests.length === 0 &&
            data.length === 0 && !this._conn.disconnecting) {
            Strophe.info("no requests during idle cycle, sending " +
                         "blank request");
            data.push(null);
        }

        if (this._conn.paused) {
            return;
        }

        if (this._requests.length < 2 && data.length > 0) {
            var body = this._buildBody();
            for (var i = 0; i < data.length; i++) {
                if (data[i] !== null) {
                    if (data[i] === "restart") {
                        body.attrs({
                            to: this._conn.domain,
                            "xml:lang": "en",
                            "xmpp:restart": "true",
                            "xmlns:xmpp": Strophe.NS.BOSH
                        });
                    } else {
                        body.cnode(data[i]).up();
                    }
                }
            }
            delete this._conn._data;
            this._conn._data = [];
            this._requests.push(
                new Strophe.Request(body.tree(),
                                    this._onRequestStateChange.bind(
                                        this, this._conn._dataRecv.bind(this._conn)),
                                    body.tree().getAttribute("rid")));
            this._throttledRequestHandler();
        }

        if (this._requests.length > 0) {
            var time_elapsed = this._requests[0].age();
            if (this._requests[0].dead !== null) {
                if (this._requests[0].timeDead() >
                    Math.floor(Strophe.SECONDARY_TIMEOUT * this.wait)) {
                    this._throttledRequestHandler();
                }
            }

            if (time_elapsed > Math.floor(Strophe.TIMEOUT * this.wait)) {
                Strophe.warn("Request " +
                             this._requests[0].id +
                             " timed out, over " + Math.floor(Strophe.TIMEOUT * this.wait) +
                             " seconds since last activity");
                this._throttledRequestHandler();
            }
        }
    },

    /** PrivateFunction: _getRequestStatus
     *
     *  Returns the HTTP status code from a Strophe.Request
     *
     *  Parameters:
     *    (Strophe.Request) req - The Strophe.Request instance.
     *    (Integer) def - The default value that should be returned if no
     *          status value was found.
     */
    _getRequestStatus: function (req, def) {
        var reqStatus;
        if (req.xhr.readyState === 4) {
            try {
                reqStatus = req.xhr.status;
            } catch (e) {
                // ignore errors from undefined status attribute. Works
                // around a browser bug
                Strophe.error(
                    "Caught an error while retrieving a request's status, " +
                    "reqStatus: " + reqStatus);
            }
        }
        if (typeof(reqStatus) === "undefined") {
            reqStatus = typeof def === 'number' ? def : 0;
        }
        return reqStatus;
    },

    /** PrivateFunction: _onRequestStateChange
     *  _Private_ handler for Strophe.Request state changes.
     *
     *  This function is called when the XMLHttpRequest readyState changes.
     *  It contains a lot of error handling logic for the many ways that
     *  requests can fail, and calls the request callback when requests
     *  succeed.
     *
     *  Parameters:
     *    (Function) func - The handler for the request.
     *    (Strophe.Request) req - The request that is changing readyState.
     */
    _onRequestStateChange: function (func, req) {
        Strophe.debug("request id "+req.id+"."+req.sends+
                      " state changed to "+req.xhr.readyState);
        if (req.abort) {
            req.abort = false;
            return;
        }
        if (req.xhr.readyState !== 4) {
            // The request is not yet complete
            return;
        }
        var reqStatus = this._getRequestStatus(req);
        if (this.disconnecting && reqStatus >= 400) {
            this._hitError(reqStatus);
            this._callProtocolErrorHandlers(req);
            return;
        }

        if ((reqStatus > 0 && reqStatus < 500) || req.sends > 5) {
            // remove from internal queue
            this._removeRequest(req);
            Strophe.debug("request id "+req.id+" should now be removed");
        }

        if (reqStatus === 200) {
            // request succeeded
            var reqIs0 = (this._requests[0] === req);
            var reqIs1 = (this._requests[1] === req);
            // if request 1 finished, or request 0 finished and request
            // 1 is over Strophe.SECONDARY_TIMEOUT seconds old, we need to
            // restart the other - both will be in the first spot, as the
            // completed request has been removed from the queue already
            if (reqIs1 ||
                (reqIs0 && this._requests.length > 0 &&
                    this._requests[0].age() > Math.floor(Strophe.SECONDARY_TIMEOUT * this.wait))) {
                this._restartRequest(0);
            }
            this._conn.nextValidRid(Number(req.rid) + 1);
            Strophe.debug("request id "+req.id+"."+req.sends+" got 200");
            func(req); // call handler
            this.errors = 0;
        } else if (reqStatus === 0 ||
                   (reqStatus >= 400 && reqStatus < 600) ||
                   reqStatus >= 12000) {
            // request failed
            Strophe.error("request id "+req.id+"."+req.sends+" error "+reqStatus+" happened");
            this._hitError(reqStatus);
            this._callProtocolErrorHandlers(req);
            if (reqStatus >= 400 && reqStatus < 500) {
                this._conn._changeConnectStatus(Strophe.Status.DISCONNECTING, null);
                this._conn._doDisconnect();
            }
        } else {
            Strophe.error("request id "+req.id+"."+req.sends+" error "+reqStatus+" happened");
        }
        if (!(reqStatus > 0 && reqStatus < 500) || req.sends > 5) {
            this._throttledRequestHandler();
        }
    },

    /** PrivateFunction: _processRequest
     *  _Private_ function to process a request in the queue.
     *
     *  This function takes requests off the queue and sends them and
     *  restarts dead requests.
     *
     *  Parameters:
     *    (Integer) i - The index of the request in the queue.
     */
    _processRequest: function (i) {
        var self = this;
        var req = this._requests[i];
        var reqStatus = this._getRequestStatus(req, -1);

        // make sure we limit the number of retries
        if (req.sends > this._conn.maxRetries) {
            this._conn._onDisconnectTimeout();
            return;
        }

        var time_elapsed = req.age();
        var primaryTimeout = (!isNaN(time_elapsed) &&
                              time_elapsed > Math.floor(Strophe.TIMEOUT * this.wait));
        var secondaryTimeout = (req.dead !== null &&
                                req.timeDead() > Math.floor(Strophe.SECONDARY_TIMEOUT * this.wait));
        var requestCompletedWithServerError = (req.xhr.readyState === 4 &&
                                               (reqStatus < 1 || reqStatus >= 500));
        if (primaryTimeout || secondaryTimeout ||
            requestCompletedWithServerError) {
            if (secondaryTimeout) {
                Strophe.error("Request " + this._requests[i].id +
                              " timed out (secondary), restarting");
            }
            req.abort = true;
            req.xhr.abort();
            // setting to null fails on IE6, so set to empty function
            req.xhr.onreadystatechange = function () {};
            this._requests[i] = new Strophe.Request(req.xmlData,
                                                    req.origFunc,
                                                    req.rid,
                                                    req.sends);
            req = this._requests[i];
        }

        if (req.xhr.readyState === 0) {
            Strophe.debug("request id "+req.id+"."+req.sends+" posting");

            try {
                var contentType = this._conn.options.contentType || "text/xml; charset=utf-8";
                req.xhr.open("POST", this._conn.service, this._conn.options.sync ? false : true);
                if (typeof req.xhr.setRequestHeader !== 'undefined') {
                    // IE9 doesn't have setRequestHeader
                    req.xhr.setRequestHeader("Content-Type", contentType);
                }
                if (this._conn.options.withCredentials) {
                    req.xhr.withCredentials = true;
                }
            } catch (e2) {
                Strophe.error("XHR open failed.");
                if (!this._conn.connected) {
                    this._conn._changeConnectStatus(
                            Strophe.Status.CONNFAIL, "bad-service");
                }
                this._conn.disconnect();
                return;
            }

            // Fires the XHR request -- may be invoked immediately
            // or on a gradually expanding retry window for reconnects
            var sendFunc = function () {
                req.date = new Date();
                if (self._conn.options.customHeaders){
                    var headers = self._conn.options.customHeaders;
                    for (var header in headers) {
                        if (headers.hasOwnProperty(header)) {
                            req.xhr.setRequestHeader(header, headers[header]);
                        }
                    }
                }
                req.xhr.send(req.data);
            };

            // Implement progressive backoff for reconnects --
            // First retry (send === 1) should also be instantaneous
            if (req.sends > 1) {
                // Using a cube of the retry number creates a nicely
                // expanding retry window
                var backoff = Math.min(Math.floor(Strophe.TIMEOUT * this.wait),
                                       Math.pow(req.sends, 3)) * 1000;
                setTimeout(function() {
                    // XXX: setTimeout should be called only with function expressions (23974bc1)
                    sendFunc();
                }, backoff);
            } else {
                sendFunc();
            }

            req.sends++;

            if (this._conn.xmlOutput !== Strophe.Connection.prototype.xmlOutput) {
                if (req.xmlData.nodeName === this.strip && req.xmlData.childNodes.length) {
                    this._conn.xmlOutput(req.xmlData.childNodes[0]);
                } else {
                    this._conn.xmlOutput(req.xmlData);
                }
            }
            if (this._conn.rawOutput !== Strophe.Connection.prototype.rawOutput) {
                this._conn.rawOutput(req.data);
            }
        } else {
            Strophe.debug("_processRequest: " +
                          (i === 0 ? "first" : "second") +
                          " request has readyState of " +
                          req.xhr.readyState);
        }
    },

    /** PrivateFunction: _removeRequest
     *  _Private_ function to remove a request from the queue.
     *
     *  Parameters:
     *    (Strophe.Request) req - The request to remove.
     */
    _removeRequest: function (req) {
        Strophe.debug("removing request");
        var i;
        for (i = this._requests.length - 1; i >= 0; i--) {
            if (req === this._requests[i]) {
                this._requests.splice(i, 1);
            }
        }
        // IE6 fails on setting to null, so set to empty function
        req.xhr.onreadystatechange = function () {};
        this._throttledRequestHandler();
    },

    /** PrivateFunction: _restartRequest
     *  _Private_ function to restart a request that is presumed dead.
     *
     *  Parameters:
     *    (Integer) i - The index of the request in the queue.
     */
    _restartRequest: function (i) {
        var req = this._requests[i];
        if (req.dead === null) {
            req.dead = new Date();
        }

        this._processRequest(i);
    },

    /** PrivateFunction: _reqToData
     * _Private_ function to get a stanza out of a request.
     *
     * Tries to extract a stanza out of a Request Object.
     * When this fails the current connection will be disconnected.
     *
     *  Parameters:
     *    (Object) req - The Request.
     *
     *  Returns:
     *    The stanza that was passed.
     */
    _reqToData: function (req) {
        try {
            return req.getResponse();
        } catch (e) {
            if (e !== "parsererror") { throw e; }
            this._conn.disconnect("strophe-parsererror");
        }
    },

    /** PrivateFunction: _sendTerminate
     *  _Private_ function to send initial disconnect sequence.
     *
     *  This is the first step in a graceful disconnect.  It sends
     *  the BOSH server a terminate body and includes an unavailable
     *  presence if authentication has completed.
     */
    _sendTerminate: function (pres) {
        Strophe.info("_sendTerminate was called");
        var body = this._buildBody().attrs({type: "terminate"});
        if (pres) {
            body.cnode(pres.tree());
        }
        var req = new Strophe.Request(
            body.tree(),
            this._onRequestStateChange.bind(
            this, this._conn._dataRecv.bind(this._conn)),
            body.tree().getAttribute("rid")
        );
        this._requests.push(req);
        this._throttledRequestHandler();
    },

    /** PrivateFunction: _send
     *  _Private_ part of the Connection.send function for BOSH
     *
     * Just triggers the RequestHandler to send the messages that are in the queue
     */
    _send: function () {
        clearTimeout(this._conn._idleTimeout);
        this._throttledRequestHandler();

        // XXX: setTimeout should be called only with function expressions (23974bc1)
        this._conn._idleTimeout = setTimeout(function() {
            this._onIdle();
        }.bind(this._conn), 100);
    },

    /** PrivateFunction: _sendRestart
     *
     *  Send an xmpp:restart stanza.
     */
    _sendRestart: function () {
        this._throttledRequestHandler();
        clearTimeout(this._conn._idleTimeout);
    },

    /** PrivateFunction: _throttledRequestHandler
     *  _Private_ function to throttle requests to the connection window.
     *
     *  This function makes sure we don't send requests so fast that the
     *  request ids overflow the connection window in the case that one
     *  request died.
     */
    _throttledRequestHandler: function () {
        if (!this._requests) {
            Strophe.debug("_throttledRequestHandler called with " +
                          "undefined requests");
        } else {
            Strophe.debug("_throttledRequestHandler called with " +
                          this._requests.length + " requests");
        }

        if (!this._requests || this._requests.length === 0) {
            return;
        }

        if (this._requests.length > 0) {
            this._processRequest(0);
        }

        if (this._requests.length > 1 &&
            Math.abs(this._requests[0].rid -
                     this._requests[1].rid) < this.window) {
            this._processRequest(1);
        }
    }
};
return Strophe;
}));

/*
    This program is distributed under the terms of the MIT license.
    Please see the LICENSE file for details.

    Copyright 2006-2008, OGG, LLC
*/

/* jshint undef: true, unused: true:, noarg: true, latedef: true */
/* global define, window, clearTimeout, WebSocket, DOMParser, Strophe, $build */

(function (root, factory) {
    if (typeof define === 'function' && define.amd) {
        define('strophe-websocket',['strophe-core'], function (core) {
            return factory(
                core.Strophe,
                core.$build
            );
        });
    } else {
        // Browser globals
        return factory(Strophe, $build);
    }
}(this, function (Strophe, $build) {

/** Class: Strophe.WebSocket
 *  _Private_ helper class that handles WebSocket Connections
 *
 *  The Strophe.WebSocket class is used internally by Strophe.Connection
 *  to encapsulate WebSocket sessions. It is not meant to be used from user's code.
 */

/** File: websocket.js
 *  A JavaScript library to enable XMPP over Websocket in Strophejs.
 *
 *  This file implements XMPP over WebSockets for Strophejs.
 *  If a Connection is established with a Websocket url (ws://...)
 *  Strophe will use WebSockets.
 *  For more information on XMPP-over-WebSocket see RFC 7395:
 *  http://tools.ietf.org/html/rfc7395
 *
 *  WebSocket support implemented by Andreas Guth (andreas.guth@rwth-aachen.de)
 */

/** PrivateConstructor: Strophe.Websocket
 *  Create and initialize a Strophe.WebSocket object.
 *  Currently only sets the connection Object.
 *
 *  Parameters:
 *    (Strophe.Connection) connection - The Strophe.Connection that will use WebSockets.
 *
 *  Returns:
 *    A new Strophe.WebSocket object.
 */
Strophe.Websocket = function(connection) {
    this._conn = connection;
    this.strip = "wrapper";

    var service = connection.service;
    if (service.indexOf("ws:") !== 0 && service.indexOf("wss:") !== 0) {
        // If the service is not an absolute URL, assume it is a path and put the absolute
        // URL together from options, current URL and the path.
        var new_service = "";

        if (connection.options.protocol === "ws" && window.location.protocol !== "https:") {
            new_service += "ws";
        } else {
            new_service += "wss";
        }

        new_service += "://" + window.location.host;

        if (service.indexOf("/") !== 0) {
            new_service += window.location.pathname + service;
        } else {
            new_service += service;
        }

        connection.service = new_service;
    }
};

Strophe.Websocket.prototype = {
    /** PrivateFunction: _buildStream
     *  _Private_ helper function to generate the <stream> start tag for WebSockets
     *
     *  Returns:
     *    A Strophe.Builder with a <stream> element.
     */
    _buildStream: function () {
        return $build("open", {
            "xmlns": Strophe.NS.FRAMING,
            "to": this._conn.domain,
            "version": '1.0'
        });
    },

    /** PrivateFunction: _check_streamerror
     * _Private_ checks a message for stream:error
     *
     *  Parameters:
     *    (Strophe.Request) bodyWrap - The received stanza.
     *    connectstatus - The ConnectStatus that will be set on error.
     *  Returns:
     *     true if there was a streamerror, false otherwise.
     */
    _check_streamerror: function (bodyWrap, connectstatus) {
        var errors;
        if (bodyWrap.getElementsByTagNameNS) {
            errors = bodyWrap.getElementsByTagNameNS(Strophe.NS.STREAM, "error");
        } else {
            errors = bodyWrap.getElementsByTagName("stream:error");
        }
        if (errors.length === 0) {
            return false;
        }
        var error = errors[0];

        var condition = "";
        var text = "";

        var ns = "urn:ietf:params:xml:ns:xmpp-streams";
        for (var i = 0; i < error.childNodes.length; i++) {
            var e = error.childNodes[i];
            if (e.getAttribute("xmlns") !== ns) {
                break;
            } if (e.nodeName === "text") {
                text = e.textContent;
            } else {
                condition = e.nodeName;
            }
        }

        var errorString = "WebSocket stream error: ";

        if (condition) {
            errorString += condition;
        } else {
            errorString += "unknown";
        }

        if (text) {
            errorString += " - " + text;
        }

        Strophe.error(errorString);

        // close the connection on stream_error
        this._conn._changeConnectStatus(connectstatus, condition);
        this._conn._doDisconnect();
        return true;
    },

    /** PrivateFunction: _reset
     *  Reset the connection.
     *
     *  This function is called by the reset function of the Strophe Connection.
     *  Is not needed by WebSockets.
     */
    _reset: function () {
        return;
    },

    /** PrivateFunction: _connect
     *  _Private_ function called by Strophe.Connection.connect
     *
     *  Creates a WebSocket for a connection and assigns Callbacks to it.
     *  Does nothing if there already is a WebSocket.
     */
    _connect: function () {
        // Ensure that there is no open WebSocket from a previous Connection.
        this._closeSocket();

        // Create the new WobSocket
        this.socket = new WebSocket(this._conn.service, "xmpp");
        this.socket.onopen = this._onOpen.bind(this);
        this.socket.onerror = this._onError.bind(this);
        this.socket.onclose = this._onClose.bind(this);
        this.socket.onmessage = this._connect_cb_wrapper.bind(this);
    },

    /** PrivateFunction: _connect_cb
     *  _Private_ function called by Strophe.Connection._connect_cb
     *
     * checks for stream:error
     *
     *  Parameters:
     *    (Strophe.Request) bodyWrap - The received stanza.
     */
    _connect_cb: function(bodyWrap) {
        var error = this._check_streamerror(bodyWrap, Strophe.Status.CONNFAIL);
        if (error) {
            return Strophe.Status.CONNFAIL;
        }
    },

    /** PrivateFunction: _handleStreamStart
     * _Private_ function that checks the opening <open /> tag for errors.
     *
     * Disconnects if there is an error and returns false, true otherwise.
     *
     *  Parameters:
     *    (Node) message - Stanza containing the <open /> tag.
     */
    _handleStreamStart: function(message) {
        var error = false;

        // Check for errors in the <open /> tag
        var ns = message.getAttribute("xmlns");
        if (typeof ns !== "string") {
            error = "Missing xmlns in <open />";
        } else if (ns !== Strophe.NS.FRAMING) {
            error = "Wrong xmlns in <open />: " + ns;
        }

        var ver = message.getAttribute("version");
        if (typeof ver !== "string") {
            error = "Missing version in <open />";
        } else if (ver !== "1.0") {
            error = "Wrong version in <open />: " + ver;
        }

        if (error) {
            this._conn._changeConnectStatus(Strophe.Status.CONNFAIL, error);
            this._conn._doDisconnect();
            return false;
        }

        return true;
    },

    /** PrivateFunction: _connect_cb_wrapper
     * _Private_ function that handles the first connection messages.
     *
     * On receiving an opening stream tag this callback replaces itself with the real
     * message handler. On receiving a stream error the connection is terminated.
     */
    _connect_cb_wrapper: function(message) {
        if (message.data.indexOf("<open ") === 0 || message.data.indexOf("<?xml") === 0) {
            // Strip the XML Declaration, if there is one
            var data = message.data.replace(/^(<\?.*?\?>\s*)*/, "");
            if (data === '') return;

            var streamStart = new DOMParser().parseFromString(data, "text/xml").documentElement;
            this._conn.xmlInput(streamStart);
            this._conn.rawInput(message.data);

            //_handleStreamSteart will check for XML errors and disconnect on error
            if (this._handleStreamStart(streamStart)) {
                //_connect_cb will check for stream:error and disconnect on error
                this._connect_cb(streamStart);
            }
        } else if (message.data.indexOf("<close ") === 0) { //'<close xmlns="urn:ietf:params:xml:ns:xmpp-framing />') {
            this._conn.rawInput(message.data);
            this._conn.xmlInput(message);
            var see_uri = message.getAttribute("see-other-uri");
            if (see_uri) {
                this._conn._changeConnectStatus(Strophe.Status.REDIRECT, "Received see-other-uri, resetting connection");
                this._conn.reset();
                this._conn.service = see_uri;
                this._connect();
            } else {
                this._conn._changeConnectStatus(Strophe.Status.CONNFAIL, "Received closing stream");
                this._conn._doDisconnect();
            }
        } else {
            var string = this._streamWrap(message.data);
            var elem = new DOMParser().parseFromString(string, "text/xml").documentElement;
            this.socket.onmessage = this._onMessage.bind(this);
            this._conn._connect_cb(elem, null, message.data);
        }
    },

    /** PrivateFunction: _disconnect
     *  _Private_ function called by Strophe.Connection.disconnect
     *
     *  Disconnects and sends a last stanza if one is given
     *
     *  Parameters:
     *    (Request) pres - This stanza will be sent before disconnecting.
     */
    _disconnect: function (pres) {
        if (this.socket && this.socket.readyState !== WebSocket.CLOSED) {
            if (pres) {
                this._conn.send(pres);
            }
            var close = $build("close", { "xmlns": Strophe.NS.FRAMING });
            this._conn.xmlOutput(close);
            var closeString = Strophe.serialize(close);
            this._conn.rawOutput(closeString);
            try {
                this.socket.send(closeString);
            } catch (e) {
                Strophe.info("Couldn't send <close /> tag.");
            }
        }
        this._conn._doDisconnect();
    },

    /** PrivateFunction: _doDisconnect
     *  _Private_ function to disconnect.
     *
     *  Just closes the Socket for WebSockets
     */
    _doDisconnect: function () {
        Strophe.info("WebSockets _doDisconnect was called");
        this._closeSocket();
    },

    /** PrivateFunction _streamWrap
     *  _Private_ helper function to wrap a stanza in a <stream> tag.
     *  This is used so Strophe can process stanzas from WebSockets like BOSH
     */
    _streamWrap: function (stanza) {
        return "<wrapper>" + stanza + '</wrapper>';
    },


    /** PrivateFunction: _closeSocket
     *  _Private_ function to close the WebSocket.
     *
     *  Closes the socket if it is still open and deletes it
     */
    _closeSocket: function () {
        if (this.socket) { try {
            this.socket.close();
        } catch (e) {} }
        this.socket = null;
    },

    /** PrivateFunction: _emptyQueue
     * _Private_ function to check if the message queue is empty.
     *
     *  Returns:
     *    True, because WebSocket messages are send immediately after queueing.
     */
    _emptyQueue: function () {
        return true;
    },

    /** PrivateFunction: _onClose
     * _Private_ function to handle websockets closing.
     *
     * Nothing to do here for WebSockets
     */
    _onClose: function() {
        if(this._conn.connected && !this._conn.disconnecting) {
            Strophe.error("Websocket closed unexpectedly");
            this._conn._doDisconnect();
        } else {
            Strophe.info("Websocket closed");
        }
    },

    /** PrivateFunction: _no_auth_received
     *
     * Called on stream start/restart when no stream:features
     * has been received.
     */
    _no_auth_received: function (_callback) {
        Strophe.error("Server did not send any auth methods");
        this._conn._changeConnectStatus(Strophe.Status.CONNFAIL, "Server did not send any auth methods");
        if (_callback) {
            _callback = _callback.bind(this._conn);
            _callback();
        }
        this._conn._doDisconnect();
    },

    /** PrivateFunction: _onDisconnectTimeout
     *  _Private_ timeout handler for handling non-graceful disconnection.
     *
     *  This does nothing for WebSockets
     */
    _onDisconnectTimeout: function () {},

    /** PrivateFunction: _abortAllRequests
     *  _Private_ helper function that makes sure all pending requests are aborted.
     */
    _abortAllRequests: function () {},

    /** PrivateFunction: _onError
     * _Private_ function to handle websockets errors.
     *
     * Parameters:
     * (Object) error - The websocket error.
     */
    _onError: function(error) {
        Strophe.error("Websocket error " + error);
        this._conn._changeConnectStatus(Strophe.Status.CONNFAIL, "The WebSocket connection could not be established or was disconnected.");
        this._disconnect();
    },

    /** PrivateFunction: _onIdle
     *  _Private_ function called by Strophe.Connection._onIdle
     *
     *  sends all queued stanzas
     */
    _onIdle: function () {
        var data = this._conn._data;
        if (data.length > 0 && !this._conn.paused) {
            for (var i = 0; i < data.length; i++) {
                if (data[i] !== null) {
                    var stanza, rawStanza;
                    if (data[i] === "restart") {
                        stanza = this._buildStream().tree();
                    } else {
                        stanza = data[i];
                    }
                    rawStanza = Strophe.serialize(stanza);
                    this._conn.xmlOutput(stanza);
                    this._conn.rawOutput(rawStanza);
                    this.socket.send(rawStanza);
                }
            }
            this._conn._data = [];
        }
    },

    /** PrivateFunction: _onMessage
     * _Private_ function to handle websockets messages.
     *
     * This function parses each of the messages as if they are full documents.
     * [TODO : We may actually want to use a SAX Push parser].
     *
     * Since all XMPP traffic starts with
     *  <stream:stream version='1.0'
     *                 xml:lang='en'
     *                 xmlns='jabber:client'
     *                 xmlns:stream='http://etherx.jabber.org/streams'
     *                 id='3697395463'
     *                 from='SERVER'>
     *
     * The first stanza will always fail to be parsed.
     *
     * Additionally, the seconds stanza will always be <stream:features> with
     * the stream NS defined in the previous stanza, so we need to 'force'
     * the inclusion of the NS in this stanza.
     *
     * Parameters:
     * (string) message - The websocket message.
     */
    _onMessage: function(message) {
        var elem, data;
        // check for closing stream
        var close = '<close xmlns="urn:ietf:params:xml:ns:xmpp-framing" />';
        if (message.data === close) {
            this._conn.rawInput(close);
            this._conn.xmlInput(message);
            if (!this._conn.disconnecting) {
                this._conn._doDisconnect();
            }
            return;
        } else if (message.data.search("<open ") === 0) {
            // This handles stream restarts
            elem = new DOMParser().parseFromString(message.data, "text/xml").documentElement;
            if (!this._handleStreamStart(elem)) {
                return;
            }
        } else {
            data = this._streamWrap(message.data);
            elem = new DOMParser().parseFromString(data, "text/xml").documentElement;
        }

        if (this._check_streamerror(elem, Strophe.Status.ERROR)) {
            return;
        }

        //handle unavailable presence stanza before disconnecting
        if (this._conn.disconnecting &&
                elem.firstChild.nodeName === "presence" &&
                elem.firstChild.getAttribute("type") === "unavailable") {
            this._conn.xmlInput(elem);
            this._conn.rawInput(Strophe.serialize(elem));
            // if we are already disconnecting we will ignore the unavailable stanza and
            // wait for the </stream:stream> tag before we close the connection
            return;
        }
        this._conn._dataRecv(elem, message.data);
    },

    /** PrivateFunction: _onOpen
     * _Private_ function to handle websockets connection setup.
     *
     * The opening stream tag is sent here.
     */
    _onOpen: function() {
        Strophe.info("Websocket open");
        var start = this._buildStream();
        this._conn.xmlOutput(start.tree());

        var startString = Strophe.serialize(start);
        this._conn.rawOutput(startString);
        this.socket.send(startString);
    },

    /** PrivateFunction: _reqToData
     * _Private_ function to get a stanza out of a request.
     *
     * WebSockets don't use requests, so the passed argument is just returned.
     *
     *  Parameters:
     *    (Object) stanza - The stanza.
     *
     *  Returns:
     *    The stanza that was passed.
     */
    _reqToData: function (stanza) {
        return stanza;
    },

    /** PrivateFunction: _send
     *  _Private_ part of the Connection.send function for WebSocket
     *
     * Just flushes the messages that are in the queue
     */
    _send: function () {
        this._conn.flush();
    },

    /** PrivateFunction: _sendRestart
     *
     *  Send an xmpp:restart stanza.
     */
    _sendRestart: function () {
        clearTimeout(this._conn._idleTimeout);
        this._conn._onIdle.bind(this._conn)();
    }
};
return Strophe;
}));

(function(root){
    if(typeof define === 'function' && define.amd){
        define('strophe',[
            "strophe-core",
            "strophe-bosh",
            "strophe-websocket"
        ], function (wrapper) {
            return wrapper;
        });
    }
})(this);


require(["strophe-polyfill"]);
/* jshint ignore:start */
    //The modules for your project will be inlined above
    //this snippet. Ask almond to synchronously require the
    //module value for 'main' here and return it as the
    //value to use for the public API for the built file.
    return require('strophe');
}));
/* jshint ignore:end */
;
(function (global, factory) {
    if (typeof define === "function" && define.amd) {
        define('pluggable',['exports', 'lodash'], factory);
    } else if (typeof exports !== "undefined") {
        factory(exports, require('lodash'));
    } else {
        var mod = {
            exports: {}
        };
        factory(mod.exports, global._);
        global.pluggable = mod.exports;
    }
})(this, function (exports, _lodash) {
    'use strict';

    Object.defineProperty(exports, "__esModule", {
        value: true
    });
    exports.enable = undefined;

    var _ = _interopRequireWildcard(_lodash);

    function _interopRequireWildcard(obj) {
        if (obj && obj.__esModule) {
            return obj;
        } else {
            var newObj = {};

            if (obj != null) {
                for (var key in obj) {
                    if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key];
                }
            }

            newObj.default = obj;
            return newObj;
        }
    }

    var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) {
        return typeof obj;
    } : function (obj) {
        return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
    };

    // The `PluginSocket` class contains the plugin architecture, and gets
    // created whenever `pluggable.enable(obj);` is called on the object
    // that you want to make pluggable.
    // You can also see it as the thing into which the plugins are plugged.
    // It takes two parameters, first, the object being made pluggable, and
    // then the name by which the pluggable object may be referenced on the
    // __super__ object (inside overrides).
    function PluginSocket(plugged, name) {
        this.name = name;
        this.plugged = plugged;
        if (typeof this.plugged.__super__ === 'undefined') {
            this.plugged.__super__ = {};
        } else if (typeof this.plugged.__super__ === 'string') {
            this.plugged.__super__ = { '__string__': this.plugged.__super__ };
        }
        this.plugged.__super__[name] = this.plugged;
        this.plugins = {};
        this.initialized_plugins = [];
    }

    // Now we add methods to the PluginSocket by adding them to its
    // prototype.
    _.extend(PluginSocket.prototype, {

        // `wrappedOverride` creates a partially applied wrapper function
        // that makes sure to set the proper super method when the
        // overriding method is called. This is done to enable
        // chaining of plugin methods, all the way up to the
        // original method.
        wrappedOverride: function wrappedOverride(key, value, super_method) {
            if (typeof super_method === "function") {
                if (typeof this.__super__ === "undefined") {
                    /* We're not on the context of the plugged object.
                    * This can happen when the overridden method is called via
                    * an event handler. In this case, we simply tack on the
                    * __super__ obj.
                    */
                    this.__super__ = {};
                }
                this.__super__[key] = super_method.bind(this);
            }
            return value.apply(this, _.drop(arguments, 3));
        },

        // `_overrideAttribute` overrides an attribute on the original object
        // (the thing being plugged into).
        //
        // If the attribute being overridden is a function, then the original
        // function will still be available via the `__super__` attribute.
        //
        // If the same function is being overridden multiple times, then
        // the original function will be available at the end of a chain of
        // functions, starting from the most recent override, all the way
        // back to the original function, each being referenced by the
        // previous' __super__ attribute.
        //
        // For example:
        //
        // `plugin2.MyFunc.__super__.myFunc => plugin1.MyFunc.__super__.myFunc => original.myFunc`
        _overrideAttribute: function _overrideAttribute(key, plugin) {
            var value = plugin.overrides[key];
            if (typeof value === "function") {
                var wrapped_function = _.partial(this.wrappedOverride, key, value, this.plugged[key]);
                this.plugged[key] = wrapped_function;
            } else {
                this.plugged[key] = value;
            }
        },

        _extendObject: function _extendObject(obj, attributes) {
            if (!obj.prototype.__super__) {
                obj.prototype.__super__ = {};
                obj.prototype.__super__[this.name] = this.plugged;
            }
            var that = this;
            _.each(attributes, function (value, key) {
                if (key === 'events') {
                    obj.prototype[key] = _.extend(value, obj.prototype[key]);
                } else if (typeof value === 'function') {
                    // We create a partially applied wrapper function, that
                    // makes sure to set the proper super method when the
                    // overriding method is called. This is done to enable
                    // chaining of plugin methods, all the way up to the
                    // original method.
                    var wrapped_function = _.partial(that.wrappedOverride, key, value, obj.prototype[key]);
                    obj.prototype[key] = wrapped_function;
                } else {
                    obj.prototype[key] = value;
                }
            });
        },

        // Plugins can specify optional dependencies (by means of the
        // `optional_dependencies` list attribute) which refers to dependencies
        // which will be initialized first, before the plugin itself gets initialized.
        // They are optional in the sense that if they aren't available, an
        // error won't be thrown.
        // However, if you want to make these dependencies strict (i.e.
        // non-optional), you can set the `strict_plugin_dependencies` attribute to `true`
        // on the object being made pluggable (i.e. the object passed to
        // `pluggable.enable`).
        loadOptionalDependencies: function loadOptionalDependencies(plugin) {
            var _this = this;

            _.each(plugin.optional_dependencies, function (name) {
                var dep = _this.plugins[name];
                if (dep) {
                    if (_.includes(dep.optional_dependencies, plugin.__name__)) {
                        /* FIXME: circular dependency checking is only one level deep. */
                        throw "Found a circular dependency between the plugins \"" + plugin.__name__ + "\" and \"" + name + "\"";
                    }
                    _this.initializePlugin(dep);
                } else {
                    _this.throwUndefinedDependencyError("Could not find optional dependency \"" + name + "\" " + "for the plugin \"" + plugin.__name__ + "\". " + "If it's needed, make sure it's loaded by require.js");
                }
            });
        },

        throwUndefinedDependencyError: function throwUndefinedDependencyError(msg) {
            if (this.plugged.strict_plugin_dependencies) {
                throw msg;
            } else {
                console.log(msg);
                return;
            }
        },

        // `applyOverrides` is called by initializePlugin. It applies any
        // and all overrides of methods or Backbone views and models that
        // are defined on any of the plugins.
        applyOverrides: function applyOverrides(plugin) {
            var _this2 = this;

            _.each(Object.keys(plugin.overrides || {}), function (key) {
                var override = plugin.overrides[key];
                if ((typeof override === 'undefined' ? 'undefined' : _typeof(override)) === "object") {
                    if (typeof _this2.plugged[key] === 'undefined') {
                        _this2.throwUndefinedDependencyError("Error: Plugin \"" + plugin.__name__ + "\" tried to override " + key + " but it's not found.");
                    } else {
                        _this2._extendObject(_this2.plugged[key], override);
                    }
                } else {
                    _this2._overrideAttribute(key, plugin);
                }
            });
        },

        // `initializePlugin` applies the overrides (if any) defined on all
        // the registered plugins and then calls the initialize method for each plugin.
        initializePlugin: function initializePlugin(plugin) {
            if (!_.includes(_.keys(this.allowed_plugins), plugin.__name__)) {
                /* Don't initialize disallowed plugins. */
                return;
            }
            if (_.includes(this.initialized_plugins, plugin.__name__)) {
                /* Don't initialize plugins twice, otherwise we get
                * infinite recursion in overridden methods.
                */
                return;
            }
            _.extend(plugin, this.properties);
            if (plugin.optional_dependencies) {
                this.loadOptionalDependencies(plugin);
            }
            this.applyOverrides(plugin);
            if (typeof plugin.initialize === "function") {
                plugin.initialize.bind(plugin)(this);
            }
            this.initialized_plugins.push(plugin.__name__);
        },

        // `registerPlugin` registers (or inserts, if you'd like) a plugin,
        // by adding it to the `plugins` map on the PluginSocket instance.
        registerPlugin: function registerPlugin(name, plugin) {
            if (name in this.plugins) {
                throw new Error('Error: Plugin name ' + name + ' is already taken');
            }
            plugin.__name__ = name;
            this.plugins[name] = plugin;
        },

        // `initializePlugins` should get called once all plugins have been
        // registered. It will then iterate through all the plugins, calling
        // `initializePlugin` for each.
        // The passed in  properties variable is an object with attributes and methods
        // which will be attached to the plugins.
        initializePlugins: function initializePlugins() {
            var properties = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
            var whitelist = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : [];
            var blacklist = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : [];

            if (!_.size(this.plugins)) {
                return;
            }
            this.properties = properties;
            this.allowed_plugins = _.pickBy(this.plugins, function (plugin, key) {
                return (!whitelist.length || whitelist.length && _.includes(whitelist, key)) && !_.includes(blacklist, key);
            });
            _.each(_.values(this.allowed_plugins), this.initializePlugin.bind(this));
        }
    });

    function enable(object, name, attrname) {
        // Call the `enable` method to make an object pluggable
        //
        // It takes three parameters:
        // - `object`: The object that gets made pluggable.
        // - `name`: The string name by which the now pluggable object
        //     may be referenced on the __super__ obj (in overrides).
        //     The default value is "plugged".
        // - `attrname`: The string name of the attribute on the now
        //     pluggable object, which refers to the PluginSocket instance
        //     that gets created.
        if (typeof attrname === "undefined") {
            attrname = "pluginSocket";
        }
        if (typeof name === 'undefined') {
            name = 'plugged';
        }
        var ref = {};
        ref[attrname] = new PluginSocket(object, name);
        return _.extend(object, ref);
    }

    exports.enable = enable;
    exports.default = {
        enable: enable
    };
});

//# sourceMappingURL=pluggable.js.map;
/*global define */
define('underscore',['lodash'], function (_) {
    return _.noConflict();
});

//     Backbone.js 1.3.3

//     (c) 2010-2016 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
//     Backbone may be freely distributed under the MIT license.
//     For all details and documentation:
//     http://backbonejs.org

(function(factory) {

  // Establish the root object, `window` (`self`) in the browser, or `global` on the server.
  // We use `self` instead of `window` for `WebWorker` support.
  var root = (typeof self == 'object' && self.self === self && self) ||
            (typeof global == 'object' && global.global === global && global);

  // Set up Backbone appropriately for the environment. Start with AMD.
  if (typeof define === 'function' && define.amd) {
    define('backbone',['underscore', 'jquery', 'exports'], function(_, $, exports) {
      // Export global even in AMD case in case this script is loaded with
      // others that may still expect a global Backbone.
      root.Backbone = factory(root, exports, _, $);
    });

  // Next for Node.js or CommonJS. jQuery may not be needed as a module.
  } else if (typeof exports !== 'undefined') {
    var _ = require('underscore'), $;
    try { $ = require('jquery'); } catch (e) {}
    factory(root, exports, _, $);

  // Finally, as a browser global.
  } else {
    root.Backbone = factory(root, {}, root._, (root.jQuery || root.Zepto || root.ender || root.$));
  }

})(function(root, Backbone, _, $) {

  // Initial Setup
  // -------------

  // Save the previous value of the `Backbone` variable, so that it can be
  // restored later on, if `noConflict` is used.
  var previousBackbone = root.Backbone;

  // Create a local reference to a common array method we'll want to use later.
  var slice = Array.prototype.slice;

  // Current version of the library. Keep in sync with `package.json`.
  Backbone.VERSION = '1.3.3';

  // For Backbone's purposes, jQuery, Zepto, Ender, or My Library (kidding) owns
  // the `$` variable.
  Backbone.$ = $;

  // Runs Backbone.js in *noConflict* mode, returning the `Backbone` variable
  // to its previous owner. Returns a reference to this Backbone object.
  Backbone.noConflict = function() {
    root.Backbone = previousBackbone;
    return this;
  };

  // Turn on `emulateHTTP` to support legacy HTTP servers. Setting this option
  // will fake `"PATCH"`, `"PUT"` and `"DELETE"` requests via the `_method` parameter and
  // set a `X-Http-Method-Override` header.
  Backbone.emulateHTTP = false;

  // Turn on `emulateJSON` to support legacy servers that can't deal with direct
  // `application/json` requests ... this will encode the body as
  // `application/x-www-form-urlencoded` instead and will send the model in a
  // form param named `model`.
  Backbone.emulateJSON = false;

  // Proxy Backbone class methods to Underscore functions, wrapping the model's
  // `attributes` object or collection's `models` array behind the scenes.
  //
  // collection.filter(function(model) { return model.get('age') > 10 });
  // collection.each(this.addView);
  //
  // `Function#apply` can be slow so we use the method's arg count, if we know it.
  var addMethod = function(length, method, attribute) {
    switch (length) {
      case 1: return function() {
        return _[method](this[attribute]);
      };
      case 2: return function(value) {
        return _[method](this[attribute], value);
      };
      case 3: return function(iteratee, context) {
        return _[method](this[attribute], cb(iteratee, this), context);
      };
      case 4: return function(iteratee, defaultVal, context) {
        return _[method](this[attribute], cb(iteratee, this), defaultVal, context);
      };
      default: return function() {
        var args = slice.call(arguments);
        args.unshift(this[attribute]);
        return _[method].apply(_, args);
      };
    }
  };
  var addUnderscoreMethods = function(Class, methods, attribute) {
    _.each(methods, function(length, method) {
      if (_[method]) Class.prototype[method] = addMethod(length, method, attribute);
    });
  };

  // Support `collection.sortBy('attr')` and `collection.findWhere({id: 1})`.
  var cb = function(iteratee, instance) {
    if (_.isFunction(iteratee)) return iteratee;
    if (_.isObject(iteratee) && !instance._isModel(iteratee)) return modelMatcher(iteratee);
    if (_.isString(iteratee)) return function(model) { return model.get(iteratee); };
    return iteratee;
  };
  var modelMatcher = function(attrs) {
    var matcher = _.matches(attrs);
    return function(model) {
      return matcher(model.attributes);
    };
  };

  // Backbone.Events
  // ---------------

  // A module that can be mixed in to *any object* in order to provide it with
  // a custom event channel. You may bind a callback to an event with `on` or
  // remove with `off`; `trigger`-ing an event fires all callbacks in
  // succession.
  //
  //     var object = {};
  //     _.extend(object, Backbone.Events);
  //     object.on('expand', function(){ alert('expanded'); });
  //     object.trigger('expand');
  //
  var Events = Backbone.Events = {};

  // Regular expression used to split event strings.
  var eventSplitter = /\s+/;

  // Iterates over the standard `event, callback` (as well as the fancy multiple
  // space-separated events `"change blur", callback` and jQuery-style event
  // maps `{event: callback}`).
  var eventsApi = function(iteratee, events, name, callback, opts) {
    var i = 0, names;
    if (name && typeof name === 'object') {
      // Handle event maps.
      if (callback !== void 0 && 'context' in opts && opts.context === void 0) opts.context = callback;
      for (names = _.keys(name); i < names.length ; i++) {
        events = eventsApi(iteratee, events, names[i], name[names[i]], opts);
      }
    } else if (name && eventSplitter.test(name)) {
      // Handle space-separated event names by delegating them individually.
      for (names = name.split(eventSplitter); i < names.length; i++) {
        events = iteratee(events, names[i], callback, opts);
      }
    } else {
      // Finally, standard events.
      events = iteratee(events, name, callback, opts);
    }
    return events;
  };

  // Bind an event to a `callback` function. Passing `"all"` will bind
  // the callback to all events fired.
  Events.on = function(name, callback, context) {
    return internalOn(this, name, callback, context);
  };

  // Guard the `listening` argument from the public API.
  var internalOn = function(obj, name, callback, context, listening) {
    obj._events = eventsApi(onApi, obj._events || {}, name, callback, {
      context: context,
      ctx: obj,
      listening: listening
    });

    if (listening) {
      var listeners = obj._listeners || (obj._listeners = {});
      listeners[listening.id] = listening;
    }

    return obj;
  };

  // Inversion-of-control versions of `on`. Tell *this* object to listen to
  // an event in another object... keeping track of what it's listening to
  // for easier unbinding later.
  Events.listenTo = function(obj, name, callback) {
    if (!obj) return this;
    var id = obj._listenId || (obj._listenId = _.uniqueId('l'));
    var listeningTo = this._listeningTo || (this._listeningTo = {});
    var listening = listeningTo[id];

    // This object is not listening to any other events on `obj` yet.
    // Setup the necessary references to track the listening callbacks.
    if (!listening) {
      var thisId = this._listenId || (this._listenId = _.uniqueId('l'));
      listening = listeningTo[id] = {obj: obj, objId: id, id: thisId, listeningTo: listeningTo, count: 0};
    }

    // Bind callbacks on obj, and keep track of them on listening.
    internalOn(obj, name, callback, this, listening);
    return this;
  };

  // The reducing API that adds a callback to the `events` object.
  var onApi = function(events, name, callback, options) {
    if (callback) {
      var handlers = events[name] || (events[name] = []);
      var context = options.context, ctx = options.ctx, listening = options.listening;
      if (listening) listening.count++;

      handlers.push({callback: callback, context: context, ctx: context || ctx, listening: listening});
    }
    return events;
  };

  // Remove one or many callbacks. If `context` is null, removes all
  // callbacks with that function. If `callback` is null, removes all
  // callbacks for the event. If `name` is null, removes all bound
  // callbacks for all events.
  Events.off = function(name, callback, context) {
    if (!this._events) return this;
    this._events = eventsApi(offApi, this._events, name, callback, {
      context: context,
      listeners: this._listeners
    });
    return this;
  };

  // Tell this object to stop listening to either specific events ... or
  // to every object it's currently listening to.
  Events.stopListening = function(obj, name, callback) {
    var listeningTo = this._listeningTo;
    if (!listeningTo) return this;

    var ids = obj ? [obj._listenId] : _.keys(listeningTo);

    for (var i = 0; i < ids.length; i++) {
      var listening = listeningTo[ids[i]];

      // If listening doesn't exist, this object is not currently
      // listening to obj. Break out early.
      if (!listening) break;

      listening.obj.off(name, callback, this);
    }

    return this;
  };

  // The reducing API that removes a callback from the `events` object.
  var offApi = function(events, name, callback, options) {
    if (!events) return;

    var i = 0, listening;
    var context = options.context, listeners = options.listeners;

    // Delete all events listeners and "drop" events.
    if (!name && !callback && !context) {
      var ids = _.keys(listeners);
      for (; i < ids.length; i++) {
        listening = listeners[ids[i]];
        delete listeners[listening.id];
        delete listening.listeningTo[listening.objId];
      }
      return;
    }

    var names = name ? [name] : _.keys(events);
    for (; i < names.length; i++) {
      name = names[i];
      var handlers = events[name];

      // Bail out if there are no events stored.
      if (!handlers) break;

      // Replace events if there are any remaining.  Otherwise, clean up.
      var remaining = [];
      for (var j = 0; j < handlers.length; j++) {
        var handler = handlers[j];
        if (
          callback && callback !== handler.callback &&
            callback !== handler.callback._callback ||
              context && context !== handler.context
        ) {
          remaining.push(handler);
        } else {
          listening = handler.listening;
          if (listening && --listening.count === 0) {
            delete listeners[listening.id];
            delete listening.listeningTo[listening.objId];
          }
        }
      }

      // Update tail event if the list has any events.  Otherwise, clean up.
      if (remaining.length) {
        events[name] = remaining;
      } else {
        delete events[name];
      }
    }
    return events;
  };

  // Bind an event to only be triggered a single time. After the first time
  // the callback is invoked, its listener will be removed. If multiple events
  // are passed in using the space-separated syntax, the handler will fire
  // once for each event, not once for a combination of all events.
  Events.once = function(name, callback, context) {
    // Map the event into a `{event: once}` object.
    var events = eventsApi(onceMap, {}, name, callback, _.bind(this.off, this));
    if (typeof name === 'string' && context == null) callback = void 0;
    return this.on(events, callback, context);
  };

  // Inversion-of-control versions of `once`.
  Events.listenToOnce = function(obj, name, callback) {
    // Map the event into a `{event: once}` object.
    var events = eventsApi(onceMap, {}, name, callback, _.bind(this.stopListening, this, obj));
    return this.listenTo(obj, events);
  };

  // Reduces the event callbacks into a map of `{event: onceWrapper}`.
  // `offer` unbinds the `onceWrapper` after it has been called.
  var onceMap = function(map, name, callback, offer) {
    if (callback) {
      var once = map[name] = _.once(function() {
        offer(name, once);
        callback.apply(this, arguments);
      });
      once._callback = callback;
    }
    return map;
  };

  // Trigger one or many events, firing all bound callbacks. Callbacks are
  // passed the same arguments as `trigger` is, apart from the event name
  // (unless you're listening on `"all"`, which will cause your callback to
  // receive the true name of the event as the first argument).
  Events.trigger = function(name) {
    if (!this._events) return this;

    var length = Math.max(0, arguments.length - 1);
    var args = Array(length);
    for (var i = 0; i < length; i++) args[i] = arguments[i + 1];

    eventsApi(triggerApi, this._events, name, void 0, args);
    return this;
  };

  // Handles triggering the appropriate event callbacks.
  var triggerApi = function(objEvents, name, callback, args) {
    if (objEvents) {
      var events = objEvents[name];
      var allEvents = objEvents.all;
      if (events && allEvents) allEvents = allEvents.slice();
      if (events) triggerEvents(events, args);
      if (allEvents) triggerEvents(allEvents, [name].concat(args));
    }
    return objEvents;
  };

  // A difficult-to-believe, but optimized internal dispatch function for
  // triggering events. Tries to keep the usual cases speedy (most internal
  // Backbone events have 3 arguments).
  var triggerEvents = function(events, args) {
    var ev, i = -1, l = events.length, a1 = args[0], a2 = args[1], a3 = args[2];
    switch (args.length) {
      case 0: while (++i < l) (ev = events[i]).callback.call(ev.ctx); return;
      case 1: while (++i < l) (ev = events[i]).callback.call(ev.ctx, a1); return;
      case 2: while (++i < l) (ev = events[i]).callback.call(ev.ctx, a1, a2); return;
      case 3: while (++i < l) (ev = events[i]).callback.call(ev.ctx, a1, a2, a3); return;
      default: while (++i < l) (ev = events[i]).callback.apply(ev.ctx, args); return;
    }
  };

  // Aliases for backwards compatibility.
  Events.bind   = Events.on;
  Events.unbind = Events.off;

  // Allow the `Backbone` object to serve as a global event bus, for folks who
  // want global "pubsub" in a convenient place.
  _.extend(Backbone, Events);

  // Backbone.Model
  // --------------

  // Backbone **Models** are the basic data object in the framework --
  // frequently representing a row in a table in a database on your server.
  // A discrete chunk of data and a bunch of useful, related methods for
  // performing computations and transformations on that data.

  // Create a new model with the specified attributes. A client id (`cid`)
  // is automatically generated and assigned for you.
  var Model = Backbone.Model = function(attributes, options) {
    var attrs = attributes || {};
    options || (options = {});
    this.cid = _.uniqueId(this.cidPrefix);
    this.attributes = {};
    if (options.collection) this.collection = options.collection;
    if (options.parse) attrs = this.parse(attrs, options) || {};
    var defaults = _.result(this, 'defaults');
    attrs = _.defaults(_.extend({}, defaults, attrs), defaults);
    this.set(attrs, options);
    this.changed = {};
    this.initialize.apply(this, arguments);
  };

  // Attach all inheritable methods to the Model prototype.
  _.extend(Model.prototype, Events, {

    // A hash of attributes whose current and previous value differ.
    changed: null,

    // The value returned during the last failed validation.
    validationError: null,

    // The default name for the JSON `id` attribute is `"id"`. MongoDB and
    // CouchDB users may want to set this to `"_id"`.
    idAttribute: 'id',

    // The prefix is used to create the client id which is used to identify models locally.
    // You may want to override this if you're experiencing name clashes with model ids.
    cidPrefix: 'c',

    // Initialize is an empty function by default. Override it with your own
    // initialization logic.
    initialize: function(){},

    // Return a copy of the model's `attributes` object.
    toJSON: function(options) {
      return _.clone(this.attributes);
    },

    // Proxy `Backbone.sync` by default -- but override this if you need
    // custom syncing semantics for *this* particular model.
    sync: function() {
      return Backbone.sync.apply(this, arguments);
    },

    // Get the value of an attribute.
    get: function(attr) {
      return this.attributes[attr];
    },

    // Get the HTML-escaped value of an attribute.
    escape: function(attr) {
      return _.escape(this.get(attr));
    },

    // Returns `true` if the attribute contains a value that is not null
    // or undefined.
    has: function(attr) {
      return this.get(attr) != null;
    },

    // Special-cased proxy to underscore's `_.matches` method.
    matches: function(attrs) {
      return !!_.iteratee(attrs, this)(this.attributes);
    },

    // Set a hash of model attributes on the object, firing `"change"`. This is
    // the core primitive operation of a model, updating the data and notifying
    // anyone who needs to know about the change in state. The heart of the beast.
    set: function(key, val, options) {
      if (key == null) return this;

      // Handle both `"key", value` and `{key: value}` -style arguments.
      var attrs;
      if (typeof key === 'object') {
        attrs = key;
        options = val;
      } else {
        (attrs = {})[key] = val;
      }

      options || (options = {});

      // Run validation.
      if (!this._validate(attrs, options)) return false;

      // Extract attributes and options.
      var unset      = options.unset;
      var silent     = options.silent;
      var changes    = [];
      var changing   = this._changing;
      this._changing = true;

      if (!changing) {
        this._previousAttributes = _.clone(this.attributes);
        this.changed = {};
      }

      var current = this.attributes;
      var changed = this.changed;
      var prev    = this._previousAttributes;

      // For each `set` attribute, update or delete the current value.
      for (var attr in attrs) {
        val = attrs[attr];
        if (!_.isEqual(current[attr], val)) changes.push(attr);
        if (!_.isEqual(prev[attr], val)) {
          changed[attr] = val;
        } else {
          delete changed[attr];
        }
        unset ? delete current[attr] : current[attr] = val;
      }

      // Update the `id`.
      if (this.idAttribute in attrs) this.id = this.get(this.idAttribute);

      // Trigger all relevant attribute changes.
      if (!silent) {
        if (changes.length) this._pending = options;
        for (var i = 0; i < changes.length; i++) {
          this.trigger('change:' + changes[i], this, current[changes[i]], options);
        }
      }

      // You might be wondering why there's a `while` loop here. Changes can
      // be recursively nested within `"change"` events.
      if (changing) return this;
      if (!silent) {
        while (this._pending) {
          options = this._pending;
          this._pending = false;
          this.trigger('change', this, options);
        }
      }
      this._pending = false;
      this._changing = false;
      return this;
    },

    // Remove an attribute from the model, firing `"change"`. `unset` is a noop
    // if the attribute doesn't exist.
    unset: function(attr, options) {
      return this.set(attr, void 0, _.extend({}, options, {unset: true}));
    },

    // Clear all attributes on the model, firing `"change"`.
    clear: function(options) {
      var attrs = {};
      for (var key in this.attributes) attrs[key] = void 0;
      return this.set(attrs, _.extend({}, options, {unset: true}));
    },

    // Determine if the model has changed since the last `"change"` event.
    // If you specify an attribute name, determine if that attribute has changed.
    hasChanged: function(attr) {
      if (attr == null) return !_.isEmpty(this.changed);
      return _.has(this.changed, attr);
    },

    // Return an object containing all the attributes that have changed, or
    // false if there are no changed attributes. Useful for determining what
    // parts of a view need to be updated and/or what attributes need to be
    // persisted to the server. Unset attributes will be set to undefined.
    // You can also pass an attributes object to diff against the model,
    // determining if there *would be* a change.
    changedAttributes: function(diff) {
      if (!diff) return this.hasChanged() ? _.clone(this.changed) : false;
      var old = this._changing ? this._previousAttributes : this.attributes;
      var changed = {};
      for (var attr in diff) {
        var val = diff[attr];
        if (_.isEqual(old[attr], val)) continue;
        changed[attr] = val;
      }
      return _.size(changed) ? changed : false;
    },

    // Get the previous value of an attribute, recorded at the time the last
    // `"change"` event was fired.
    previous: function(attr) {
      if (attr == null || !this._previousAttributes) return null;
      return this._previousAttributes[attr];
    },

    // Get all of the attributes of the model at the time of the previous
    // `"change"` event.
    previousAttributes: function() {
      return _.clone(this._previousAttributes);
    },

    // Fetch the model from the server, merging the response with the model's
    // local attributes. Any changed attributes will trigger a "change" event.
    fetch: function(options) {
      options = _.extend({parse: true}, options);
      var model = this;
      var success = options.success;
      options.success = function(resp) {
        var serverAttrs = options.parse ? model.parse(resp, options) : resp;
        if (!model.set(serverAttrs, options)) return false;
        if (success) success.call(options.context, model, resp, options);
        model.trigger('sync', model, resp, options);
      };
      wrapError(this, options);
      return this.sync('read', this, options);
    },

    // Set a hash of model attributes, and sync the model to the server.
    // If the server returns an attributes hash that differs, the model's
    // state will be `set` again.
    save: function(key, val, options) {
      // Handle both `"key", value` and `{key: value}` -style arguments.
      var attrs;
      if (key == null || typeof key === 'object') {
        attrs = key;
        options = val;
      } else {
        (attrs = {})[key] = val;
      }

      options = _.extend({validate: true, parse: true}, options);
      var wait = options.wait;

      // If we're not waiting and attributes exist, save acts as
      // `set(attr).save(null, opts)` with validation. Otherwise, check if
      // the model will be valid when the attributes, if any, are set.
      if (attrs && !wait) {
        if (!this.set(attrs, options)) return false;
      } else if (!this._validate(attrs, options)) {
        return false;
      }

      // After a successful server-side save, the client is (optionally)
      // updated with the server-side state.
      var model = this;
      var success = options.success;
      var attributes = this.attributes;
      options.success = function(resp) {
        // Ensure attributes are restored during synchronous saves.
        model.attributes = attributes;
        var serverAttrs = options.parse ? model.parse(resp, options) : resp;
        if (wait) serverAttrs = _.extend({}, attrs, serverAttrs);
        if (serverAttrs && !model.set(serverAttrs, options)) return false;
        if (success) success.call(options.context, model, resp, options);
        model.trigger('sync', model, resp, options);
      };
      wrapError(this, options);

      // Set temporary attributes if `{wait: true}` to properly find new ids.
      if (attrs && wait) this.attributes = _.extend({}, attributes, attrs);

      var method = this.isNew() ? 'create' : (options.patch ? 'patch' : 'update');
      if (method === 'patch' && !options.attrs) options.attrs = attrs;
      var xhr = this.sync(method, this, options);

      // Restore attributes.
      this.attributes = attributes;

      return xhr;
    },

    // Destroy this model on the server if it was already persisted.
    // Optimistically removes the model from its collection, if it has one.
    // If `wait: true` is passed, waits for the server to respond before removal.
    destroy: function(options) {
      options = options ? _.clone(options) : {};
      var model = this;
      var success = options.success;
      var wait = options.wait;

      var destroy = function() {
        model.stopListening();
        model.trigger('destroy', model, model.collection, options);
      };

      options.success = function(resp) {
        if (wait) destroy();
        if (success) success.call(options.context, model, resp, options);
        if (!model.isNew()) model.trigger('sync', model, resp, options);
      };

      var xhr = false;
      if (this.isNew()) {
        _.defer(options.success);
      } else {
        wrapError(this, options);
        xhr = this.sync('delete', this, options);
      }
      if (!wait) destroy();
      return xhr;
    },

    // Default URL for the model's representation on the server -- if you're
    // using Backbone's restful methods, override this to change the endpoint
    // that will be called.
    url: function() {
      var base =
        _.result(this, 'urlRoot') ||
        _.result(this.collection, 'url') ||
        urlError();
      if (this.isNew()) return base;
      var id = this.get(this.idAttribute);
      return base.replace(/[^\/]$/, '$&/') + encodeURIComponent(id);
    },

    // **parse** converts a response into the hash of attributes to be `set` on
    // the model. The default implementation is just to pass the response along.
    parse: function(resp, options) {
      return resp;
    },

    // Create a new model with identical attributes to this one.
    clone: function() {
      return new this.constructor(this.attributes);
    },

    // A model is new if it has never been saved to the server, and lacks an id.
    isNew: function() {
      return !this.has(this.idAttribute);
    },

    // Check if the model is currently in a valid state.
    isValid: function(options) {
      return this._validate({}, _.extend({}, options, {validate: true}));
    },

    // Run validation against the next complete set of model attributes,
    // returning `true` if all is well. Otherwise, fire an `"invalid"` event.
    _validate: function(attrs, options) {
      if (!options.validate || !this.validate) return true;
      attrs = _.extend({}, this.attributes, attrs);
      var error = this.validationError = this.validate(attrs, options) || null;
      if (!error) return true;
      this.trigger('invalid', this, error, _.extend(options, {validationError: error}));
      return false;
    }

  });

  // Underscore methods that we want to implement on the Model, mapped to the
  // number of arguments they take.
  var modelMethods = {keys: 1, values: 1, pairs: 1, invert: 1, pick: 0,
      omit: 0, chain: 1, isEmpty: 1};

  // Mix in each Underscore method as a proxy to `Model#attributes`.
  addUnderscoreMethods(Model, modelMethods, 'attributes');

  // Backbone.Collection
  // -------------------

  // If models tend to represent a single row of data, a Backbone Collection is
  // more analogous to a table full of data ... or a small slice or page of that
  // table, or a collection of rows that belong together for a particular reason
  // -- all of the messages in this particular folder, all of the documents
  // belonging to this particular author, and so on. Collections maintain
  // indexes of their models, both in order, and for lookup by `id`.

  // Create a new **Collection**, perhaps to contain a specific type of `model`.
  // If a `comparator` is specified, the Collection will maintain
  // its models in sort order, as they're added and removed.
  var Collection = Backbone.Collection = function(models, options) {
    options || (options = {});
    if (options.model) this.model = options.model;
    if (options.comparator !== void 0) this.comparator = options.comparator;
    this._reset();
    this.initialize.apply(this, arguments);
    if (models) this.reset(models, _.extend({silent: true}, options));
  };

  // Default options for `Collection#set`.
  var setOptions = {add: true, remove: true, merge: true};
  var addOptions = {add: true, remove: false};

  // Splices `insert` into `array` at index `at`.
  var splice = function(array, insert, at) {
    at = Math.min(Math.max(at, 0), array.length);
    var tail = Array(array.length - at);
    var length = insert.length;
    var i;
    for (i = 0; i < tail.length; i++) tail[i] = array[i + at];
    for (i = 0; i < length; i++) array[i + at] = insert[i];
    for (i = 0; i < tail.length; i++) array[i + length + at] = tail[i];
  };

  // Define the Collection's inheritable methods.
  _.extend(Collection.prototype, Events, {

    // The default model for a collection is just a **Backbone.Model**.
    // This should be overridden in most cases.
    model: Model,

    // Initialize is an empty function by default. Override it with your own
    // initialization logic.
    initialize: function(){},

    // The JSON representation of a Collection is an array of the
    // models' attributes.
    toJSON: function(options) {
      return this.map(function(model) { return model.toJSON(options); });
    },

    // Proxy `Backbone.sync` by default.
    sync: function() {
      return Backbone.sync.apply(this, arguments);
    },

    // Add a model, or list of models to the set. `models` may be Backbone
    // Models or raw JavaScript objects to be converted to Models, or any
    // combination of the two.
    add: function(models, options) {
      return this.set(models, _.extend({merge: false}, options, addOptions));
    },

    // Remove a model, or a list of models from the set.
    remove: function(models, options) {
      options = _.extend({}, options);
      var singular = !_.isArray(models);
      models = singular ? [models] : models.slice();
      var removed = this._removeModels(models, options);
      if (!options.silent && removed.length) {
        options.changes = {added: [], merged: [], removed: removed};
        this.trigger('update', this, options);
      }
      return singular ? removed[0] : removed;
    },

    // Update a collection by `set`-ing a new list of models, adding new ones,
    // removing models that are no longer present, and merging models that
    // already exist in the collection, as necessary. Similar to **Model#set**,
    // the core operation for updating the data contained by the collection.
    set: function(models, options) {
      if (models == null) return;

      options = _.extend({}, setOptions, options);
      if (options.parse && !this._isModel(models)) {
        models = this.parse(models, options) || [];
      }

      var singular = !_.isArray(models);
      models = singular ? [models] : models.slice();

      var at = options.at;
      if (at != null) at = +at;
      if (at > this.length) at = this.length;
      if (at < 0) at += this.length + 1;

      var set = [];
      var toAdd = [];
      var toMerge = [];
      var toRemove = [];
      var modelMap = {};

      var add = options.add;
      var merge = options.merge;
      var remove = options.remove;

      var sort = false;
      var sortable = this.comparator && at == null && options.sort !== false;
      var sortAttr = _.isString(this.comparator) ? this.comparator : null;

      // Turn bare objects into model references, and prevent invalid models
      // from being added.
      var model, i;
      for (i = 0; i < models.length; i++) {
        model = models[i];

        // If a duplicate is found, prevent it from being added and
        // optionally merge it into the existing model.
        var existing = this.get(model);
        if (existing) {
          if (merge && model !== existing) {
            var attrs = this._isModel(model) ? model.attributes : model;
            if (options.parse) attrs = existing.parse(attrs, options);
            existing.set(attrs, options);
            toMerge.push(existing);
            if (sortable && !sort) sort = existing.hasChanged(sortAttr);
          }
          if (!modelMap[existing.cid]) {
            modelMap[existing.cid] = true;
            set.push(existing);
          }
          models[i] = existing;

        // If this is a new, valid model, push it to the `toAdd` list.
        } else if (add) {
          model = models[i] = this._prepareModel(model, options);
          if (model) {
            toAdd.push(model);
            this._addReference(model, options);
            modelMap[model.cid] = true;
            set.push(model);
          }
        }
      }

      // Remove stale models.
      if (remove) {
        for (i = 0; i < this.length; i++) {
          model = this.models[i];
          if (!modelMap[model.cid]) toRemove.push(model);
        }
        if (toRemove.length) this._removeModels(toRemove, options);
      }

      // See if sorting is needed, update `length` and splice in new models.
      var orderChanged = false;
      var replace = !sortable && add && remove;
      if (set.length && replace) {
        orderChanged = this.length !== set.length || _.some(this.models, function(m, index) {
          return m !== set[index];
        });
        this.models.length = 0;
        splice(this.models, set, 0);
        this.length = this.models.length;
      } else if (toAdd.length) {
        if (sortable) sort = true;
        splice(this.models, toAdd, at == null ? this.length : at);
        this.length = this.models.length;
      }

      // Silently sort the collection if appropriate.
      if (sort) this.sort({silent: true});

      // Unless silenced, it's time to fire all appropriate add/sort/update events.
      if (!options.silent) {
        for (i = 0; i < toAdd.length; i++) {
          if (at != null) options.index = at + i;
          model = toAdd[i];
          model.trigger('add', model, this, options);
        }
        if (sort || orderChanged) this.trigger('sort', this, options);
        if (toAdd.length || toRemove.length || toMerge.length) {
          options.changes = {
            added: toAdd,
            removed: toRemove,
            merged: toMerge
          };
          this.trigger('update', this, options);
        }
      }

      // Return the added (or merged) model (or models).
      return singular ? models[0] : models;
    },

    // When you have more items than you want to add or remove individually,
    // you can reset the entire set with a new list of models, without firing
    // any granular `add` or `remove` events. Fires `reset` when finished.
    // Useful for bulk operations and optimizations.
    reset: function(models, options) {
      options = options ? _.clone(options) : {};
      for (var i = 0; i < this.models.length; i++) {
        this._removeReference(this.models[i], options);
      }
      options.previousModels = this.models;
      this._reset();
      models = this.add(models, _.extend({silent: true}, options));
      if (!options.silent) this.trigger('reset', this, options);
      return models;
    },

    // Add a model to the end of the collection.
    push: function(model, options) {
      return this.add(model, _.extend({at: this.length}, options));
    },

    // Remove a model from the end of the collection.
    pop: function(options) {
      var model = this.at(this.length - 1);
      return this.remove(model, options);
    },

    // Add a model to the beginning of the collection.
    unshift: function(model, options) {
      return this.add(model, _.extend({at: 0}, options));
    },

    // Remove a model from the beginning of the collection.
    shift: function(options) {
      var model = this.at(0);
      return this.remove(model, options);
    },

    // Slice out a sub-array of models from the collection.
    slice: function() {
      return slice.apply(this.models, arguments);
    },

    // Get a model from the set by id, cid, model object with id or cid
    // properties, or an attributes object that is transformed through modelId.
    get: function(obj) {
      if (obj == null) return void 0;
      return this._byId[obj] ||
        this._byId[this.modelId(obj.attributes || obj)] ||
        obj.cid && this._byId[obj.cid];
    },

    // Returns `true` if the model is in the collection.
    has: function(obj) {
      return this.get(obj) != null;
    },

    // Get the model at the given index.
    at: function(index) {
      if (index < 0) index += this.length;
      return this.models[index];
    },

    // Return models with matching attributes. Useful for simple cases of
    // `filter`.
    where: function(attrs, first) {
      return this[first ? 'find' : 'filter'](attrs);
    },

    // Return the first model with matching attributes. Useful for simple cases
    // of `find`.
    findWhere: function(attrs) {
      return this.where(attrs, true);
    },

    // Force the collection to re-sort itself. You don't need to call this under
    // normal circumstances, as the set will maintain sort order as each item
    // is added.
    sort: function(options) {
      var comparator = this.comparator;
      if (!comparator) throw new Error('Cannot sort a set without a comparator');
      options || (options = {});

      var length = comparator.length;
      if (_.isFunction(comparator)) comparator = _.bind(comparator, this);

      // Run sort based on type of `comparator`.
      if (length === 1 || _.isString(comparator)) {
        this.models = this.sortBy(comparator);
      } else {
        this.models.sort(comparator);
      }
      if (!options.silent) this.trigger('sort', this, options);
      return this;
    },

    // Pluck an attribute from each model in the collection.
    pluck: function(attr) {
      return this.map(attr + '');
    },

    // Fetch the default set of models for this collection, resetting the
    // collection when they arrive. If `reset: true` is passed, the response
    // data will be passed through the `reset` method instead of `set`.
    fetch: function(options) {
      options = _.extend({parse: true}, options);
      var success = options.success;
      var collection = this;
      options.success = function(resp) {
        var method = options.reset ? 'reset' : 'set';
        collection[method](resp, options);
        if (success) success.call(options.context, collection, resp, options);
        collection.trigger('sync', collection, resp, options);
      };
      wrapError(this, options);
      return this.sync('read', this, options);
    },

    // Create a new instance of a model in this collection. Add the model to the
    // collection immediately, unless `wait: true` is passed, in which case we
    // wait for the server to agree.
    create: function(model, options) {
      options = options ? _.clone(options) : {};
      var wait = options.wait;
      model = this._prepareModel(model, options);
      if (!model) return false;
      if (!wait) this.add(model, options);
      var collection = this;
      var success = options.success;
      options.success = function(m, resp, callbackOpts) {
        if (wait) collection.add(m, callbackOpts);
        if (success) success.call(callbackOpts.context, m, resp, callbackOpts);
      };
      model.save(null, options);
      return model;
    },

    // **parse** converts a response into a list of models to be added to the
    // collection. The default implementation is just to pass it through.
    parse: function(resp, options) {
      return resp;
    },

    // Create a new collection with an identical list of models as this one.
    clone: function() {
      return new this.constructor(this.models, {
        model: this.model,
        comparator: this.comparator
      });
    },

    // Define how to uniquely identify models in the collection.
    modelId: function(attrs) {
      return attrs[this.model.prototype.idAttribute || 'id'];
    },

    // Private method to reset all internal state. Called when the collection
    // is first initialized or reset.
    _reset: function() {
      this.length = 0;
      this.models = [];
      this._byId  = {};
    },

    // Prepare a hash of attributes (or other model) to be added to this
    // collection.
    _prepareModel: function(attrs, options) {
      if (this._isModel(attrs)) {
        if (!attrs.collection) attrs.collection = this;
        return attrs;
      }
      options = options ? _.clone(options) : {};
      options.collection = this;
      var model = new this.model(attrs, options);
      if (!model.validationError) return model;
      this.trigger('invalid', this, model.validationError, options);
      return false;
    },

    // Internal method called by both remove and set.
    _removeModels: function(models, options) {
      var removed = [];
      for (var i = 0; i < models.length; i++) {
        var model = this.get(models[i]);
        if (!model) continue;

        var index = this.indexOf(model);
        this.models.splice(index, 1);
        this.length--;

        // Remove references before triggering 'remove' event to prevent an
        // infinite loop. #3693
        delete this._byId[model.cid];
        var id = this.modelId(model.attributes);
        if (id != null) delete this._byId[id];

        if (!options.silent) {
          options.index = index;
          model.trigger('remove', model, this, options);
        }

        removed.push(model);
        this._removeReference(model, options);
      }
      return removed;
    },

    // Method for checking whether an object should be considered a model for
    // the purposes of adding to the collection.
    _isModel: function(model) {
      return model instanceof Model;
    },

    // Internal method to create a model's ties to a collection.
    _addReference: function(model, options) {
      this._byId[model.cid] = model;
      var id = this.modelId(model.attributes);
      if (id != null) this._byId[id] = model;
      model.on('all', this._onModelEvent, this);
    },

    // Internal method to sever a model's ties to a collection.
    _removeReference: function(model, options) {
      delete this._byId[model.cid];
      var id = this.modelId(model.attributes);
      if (id != null) delete this._byId[id];
      if (this === model.collection) delete model.collection;
      model.off('all', this._onModelEvent, this);
    },

    // Internal method called every time a model in the set fires an event.
    // Sets need to update their indexes when models change ids. All other
    // events simply proxy through. "add" and "remove" events that originate
    // in other collections are ignored.
    _onModelEvent: function(event, model, collection, options) {
      if (model) {
        if ((event === 'add' || event === 'remove') && collection !== this) return;
        if (event === 'destroy') this.remove(model, options);
        if (event === 'change') {
          var prevId = this.modelId(model.previousAttributes());
          var id = this.modelId(model.attributes);
          if (prevId !== id) {
            if (prevId != null) delete this._byId[prevId];
            if (id != null) this._byId[id] = model;
          }
        }
      }
      this.trigger.apply(this, arguments);
    }

  });

  // Underscore methods that we want to implement on the Collection.
  // 90% of the core usefulness of Backbone Collections is actually implemented
  // right here:
  var collectionMethods = {forEach: 3, each: 3, map: 3, collect: 3, reduce: 0,
      foldl: 0, inject: 0, reduceRight: 0, foldr: 0, find: 3, detect: 3, filter: 3,
      select: 3, reject: 3, every: 3, all: 3, some: 3, any: 3, include: 3, includes: 3,
      contains: 3, invoke: 0, max: 3, min: 3, toArray: 1, size: 1, first: 3,
      head: 3, take: 3, initial: 3, rest: 3, tail: 3, drop: 3, last: 3,
      without: 0, difference: 0, indexOf: 3, shuffle: 1, lastIndexOf: 3,
      isEmpty: 1, chain: 1, sample: 3, partition: 3, groupBy: 3, countBy: 3,
      sortBy: 3, indexBy: 3, findIndex: 3, findLastIndex: 3};

  // Mix in each Underscore method as a proxy to `Collection#models`.
  addUnderscoreMethods(Collection, collectionMethods, 'models');

  // Backbone.View
  // -------------

  // Backbone Views are almost more convention than they are actual code. A View
  // is simply a JavaScript object that represents a logical chunk of UI in the
  // DOM. This might be a single item, an entire list, a sidebar or panel, or
  // even the surrounding frame which wraps your whole app. Defining a chunk of
  // UI as a **View** allows you to define your DOM events declaratively, without
  // having to worry about render order ... and makes it easy for the view to
  // react to specific changes in the state of your models.

  // Creating a Backbone.View creates its initial element outside of the DOM,
  // if an existing element is not provided...
  var View = Backbone.View = function(options) {
    this.cid = _.uniqueId('view');
    _.extend(this, _.pick(options, viewOptions));
    this._ensureElement();
    this.initialize.apply(this, arguments);
  };

  // Cached regex to split keys for `delegate`.
  var delegateEventSplitter = /^(\S+)\s*(.*)$/;

  // List of view options to be set as properties.
  var viewOptions = ['model', 'collection', 'el', 'id', 'attributes', 'className', 'tagName', 'events'];

  // Set up all inheritable **Backbone.View** properties and methods.
  _.extend(View.prototype, Events, {

    // The default `tagName` of a View's element is `"div"`.
    tagName: 'div',

    // jQuery delegate for element lookup, scoped to DOM elements within the
    // current view. This should be preferred to global lookups where possible.
    $: function(selector) {
      return this.$el.find(selector);
    },

    // Initialize is an empty function by default. Override it with your own
    // initialization logic.
    initialize: function(){},

    // **render** is the core function that your view should override, in order
    // to populate its element (`this.el`), with the appropriate HTML. The
    // convention is for **render** to always return `this`.
    render: function() {
      return this;
    },

    // Remove this view by taking the element out of the DOM, and removing any
    // applicable Backbone.Events listeners.
    remove: function() {
      this._removeElement();
      this.stopListening();
      return this;
    },

    // Remove this view's element from the document and all event listeners
    // attached to it. Exposed for subclasses using an alternative DOM
    // manipulation API.
    _removeElement: function() {
      this.$el.remove();
    },

    // Change the view's element (`this.el` property) and re-delegate the
    // view's events on the new element.
    setElement: function(element) {
      this.undelegateEvents();
      this._setElement(element);
      this.delegateEvents();
      return this;
    },

    // Creates the `this.el` and `this.$el` references for this view using the
    // given `el`. `el` can be a CSS selector or an HTML string, a jQuery
    // context or an element. Subclasses can override this to utilize an
    // alternative DOM manipulation API and are only required to set the
    // `this.el` property.
    _setElement: function(el) {
      this.$el = el instanceof Backbone.$ ? el : Backbone.$(el);
      this.el = this.$el[0];
    },

    // Set callbacks, where `this.events` is a hash of
    //
    // *{"event selector": "callback"}*
    //
    //     {
    //       'mousedown .title':  'edit',
    //       'click .button':     'save',
    //       'click .open':       function(e) { ... }
    //     }
    //
    // pairs. Callbacks will be bound to the view, with `this` set properly.
    // Uses event delegation for efficiency.
    // Omitting the selector binds the event to `this.el`.
    delegateEvents: function(events) {
      events || (events = _.result(this, 'events'));
      if (!events) return this;
      this.undelegateEvents();
      for (var key in events) {
        var method = events[key];
        if (!_.isFunction(method)) method = this[method];
        if (!method) continue;
        var match = key.match(delegateEventSplitter);
        this.delegate(match[1], match[2], _.bind(method, this));
      }
      return this;
    },

    // Add a single event listener to the view's element (or a child element
    // using `selector`). This only works for delegate-able events: not `focus`,
    // `blur`, and not `change`, `submit`, and `reset` in Internet Explorer.
    delegate: function(eventName, selector, listener) {
      this.$el.on(eventName + '.delegateEvents' + this.cid, selector, listener);
      return this;
    },

    // Clears all callbacks previously bound to the view by `delegateEvents`.
    // You usually don't need to use this, but may wish to if you have multiple
    // Backbone views attached to the same DOM element.
    undelegateEvents: function() {
      if (this.$el) this.$el.off('.delegateEvents' + this.cid);
      return this;
    },

    // A finer-grained `undelegateEvents` for removing a single delegated event.
    // `selector` and `listener` are both optional.
    undelegate: function(eventName, selector, listener) {
      this.$el.off(eventName + '.delegateEvents' + this.cid, selector, listener);
      return this;
    },

    // Produces a DOM element to be assigned to your view. Exposed for
    // subclasses using an alternative DOM manipulation API.
    _createElement: function(tagName) {
      return document.createElement(tagName);
    },

    // Ensure that the View has a DOM element to render into.
    // If `this.el` is a string, pass it through `$()`, take the first
    // matching element, and re-assign it to `el`. Otherwise, create
    // an element from the `id`, `className` and `tagName` properties.
    _ensureElement: function() {
      if (!this.el) {
        var attrs = _.extend({}, _.result(this, 'attributes'));
        if (this.id) attrs.id = _.result(this, 'id');
        if (this.className) attrs['class'] = _.result(this, 'className');
        this.setElement(this._createElement(_.result(this, 'tagName')));
        this._setAttributes(attrs);
      } else {
        this.setElement(_.result(this, 'el'));
      }
    },

    // Set attributes from a hash on this view's element.  Exposed for
    // subclasses using an alternative DOM manipulation API.
    _setAttributes: function(attributes) {
      this.$el.attr(attributes);
    }

  });

  // Backbone.sync
  // -------------

  // Override this function to change the manner in which Backbone persists
  // models to the server. You will be passed the type of request, and the
  // model in question. By default, makes a RESTful Ajax request
  // to the model's `url()`. Some possible customizations could be:
  //
  // * Use `setTimeout` to batch rapid-fire updates into a single request.
  // * Send up the models as XML instead of JSON.
  // * Persist models via WebSockets instead of Ajax.
  //
  // Turn on `Backbone.emulateHTTP` in order to send `PUT` and `DELETE` requests
  // as `POST`, with a `_method` parameter containing the true HTTP method,
  // as well as all requests with the body as `application/x-www-form-urlencoded`
  // instead of `application/json` with the model in a param named `model`.
  // Useful when interfacing with server-side languages like **PHP** that make
  // it difficult to read the body of `PUT` requests.
  Backbone.sync = function(method, model, options) {
    var type = methodMap[method];

    // Default options, unless specified.
    _.defaults(options || (options = {}), {
      emulateHTTP: Backbone.emulateHTTP,
      emulateJSON: Backbone.emulateJSON
    });

    // Default JSON-request options.
    var params = {type: type, dataType: 'json'};

    // Ensure that we have a URL.
    if (!options.url) {
      params.url = _.result(model, 'url') || urlError();
    }

    // Ensure that we have the appropriate request data.
    if (options.data == null && model && (method === 'create' || method === 'update' || method === 'patch')) {
      params.contentType = 'application/json';
      params.data = JSON.stringify(options.attrs || model.toJSON(options));
    }

    // For older servers, emulate JSON by encoding the request into an HTML-form.
    if (options.emulateJSON) {
      params.contentType = 'application/x-www-form-urlencoded';
      params.data = params.data ? {model: params.data} : {};
    }

    // For older servers, emulate HTTP by mimicking the HTTP method with `_method`
    // And an `X-HTTP-Method-Override` header.
    if (options.emulateHTTP && (type === 'PUT' || type === 'DELETE' || type === 'PATCH')) {
      params.type = 'POST';
      if (options.emulateJSON) params.data._method = type;
      var beforeSend = options.beforeSend;
      options.beforeSend = function(xhr) {
        xhr.setRequestHeader('X-HTTP-Method-Override', type);
        if (beforeSend) return beforeSend.apply(this, arguments);
      };
    }

    // Don't process data on a non-GET request.
    if (params.type !== 'GET' && !options.emulateJSON) {
      params.processData = false;
    }

    // Pass along `textStatus` and `errorThrown` from jQuery.
    var error = options.error;
    options.error = function(xhr, textStatus, errorThrown) {
      options.textStatus = textStatus;
      options.errorThrown = errorThrown;
      if (error) error.call(options.context, xhr, textStatus, errorThrown);
    };

    // Make the request, allowing the user to override any Ajax options.
    var xhr = options.xhr = Backbone.ajax(_.extend(params, options));
    model.trigger('request', model, xhr, options);
    return xhr;
  };

  // Map from CRUD to HTTP for our default `Backbone.sync` implementation.
  var methodMap = {
    'create': 'POST',
    'update': 'PUT',
    'patch': 'PATCH',
    'delete': 'DELETE',
    'read': 'GET'
  };

  // Set the default implementation of `Backbone.ajax` to proxy through to `$`.
  // Override this if you'd like to use a different library.
  Backbone.ajax = function() {
    return Backbone.$.ajax.apply(Backbone.$, arguments);
  };

  // Backbone.Router
  // ---------------

  // Routers map faux-URLs to actions, and fire events when routes are
  // matched. Creating a new one sets its `routes` hash, if not set statically.
  var Router = Backbone.Router = function(options) {
    options || (options = {});
    if (options.routes) this.routes = options.routes;
    this._bindRoutes();
    this.initialize.apply(this, arguments);
  };

  // Cached regular expressions for matching named param parts and splatted
  // parts of route strings.
  var optionalParam = /\((.*?)\)/g;
  var namedParam    = /(\(\?)?:\w+/g;
  var splatParam    = /\*\w+/g;
  var escapeRegExp  = /[\-{}\[\]+?.,\\\^$|#\s]/g;

  // Set up all inheritable **Backbone.Router** properties and methods.
  _.extend(Router.prototype, Events, {

    // Initialize is an empty function by default. Override it with your own
    // initialization logic.
    initialize: function(){},

    // Manually bind a single named route to a callback. For example:
    //
    //     this.route('search/:query/p:num', 'search', function(query, num) {
    //       ...
    //     });
    //
    route: function(route, name, callback) {
      if (!_.isRegExp(route)) route = this._routeToRegExp(route);
      if (_.isFunction(name)) {
        callback = name;
        name = '';
      }
      if (!callback) callback = this[name];
      var router = this;
      Backbone.history.route(route, function(fragment) {
        var args = router._extractParameters(route, fragment);
        if (router.execute(callback, args, name) !== false) {
          router.trigger.apply(router, ['route:' + name].concat(args));
          router.trigger('route', name, args);
          Backbone.history.trigger('route', router, name, args);
        }
      });
      return this;
    },

    // Execute a route handler with the provided parameters.  This is an
    // excellent place to do pre-route setup or post-route cleanup.
    execute: function(callback, args, name) {
      if (callback) callback.apply(this, args);
    },

    // Simple proxy to `Backbone.history` to save a fragment into the history.
    navigate: function(fragment, options) {
      Backbone.history.navigate(fragment, options);
      return this;
    },

    // Bind all defined routes to `Backbone.history`. We have to reverse the
    // order of the routes here to support behavior where the most general
    // routes can be defined at the bottom of the route map.
    _bindRoutes: function() {
      if (!this.routes) return;
      this.routes = _.result(this, 'routes');
      var route, routes = _.keys(this.routes);
      while ((route = routes.pop()) != null) {
        this.route(route, this.routes[route]);
      }
    },

    // Convert a route string into a regular expression, suitable for matching
    // against the current location hash.
    _routeToRegExp: function(route) {
      route = route.replace(escapeRegExp, '\\$&')
                   .replace(optionalParam, '(?:$1)?')
                   .replace(namedParam, function(match, optional) {
                     return optional ? match : '([^/?]+)';
                   })
                   .replace(splatParam, '([^?]*?)');
      return new RegExp('^' + route + '(?:\\?([\\s\\S]*))?$');
    },

    // Given a route, and a URL fragment that it matches, return the array of
    // extracted decoded parameters. Empty or unmatched parameters will be
    // treated as `null` to normalize cross-browser behavior.
    _extractParameters: function(route, fragment) {
      var params = route.exec(fragment).slice(1);
      return _.map(params, function(param, i) {
        // Don't decode the search params.
        if (i === params.length - 1) return param || null;
        return param ? decodeURIComponent(param) : null;
      });
    }

  });

  // Backbone.History
  // ----------------

  // Handles cross-browser history management, based on either
  // [pushState](http://diveintohtml5.info/history.html) and real URLs, or
  // [onhashchange](https://developer.mozilla.org/en-US/docs/DOM/window.onhashchange)
  // and URL fragments. If the browser supports neither (old IE, natch),
  // falls back to polling.
  var History = Backbone.History = function() {
    this.handlers = [];
    this.checkUrl = _.bind(this.checkUrl, this);

    // Ensure that `History` can be used outside of the browser.
    if (typeof window !== 'undefined') {
      this.location = window.location;
      this.history = window.history;
    }
  };

  // Cached regex for stripping a leading hash/slash and trailing space.
  var routeStripper = /^[#\/]|\s+$/g;

  // Cached regex for stripping leading and trailing slashes.
  var rootStripper = /^\/+|\/+$/g;

  // Cached regex for stripping urls of hash.
  var pathStripper = /#.*$/;

  // Has the history handling already been started?
  History.started = false;

  // Set up all inheritable **Backbone.History** properties and methods.
  _.extend(History.prototype, Events, {

    // The default interval to poll for hash changes, if necessary, is
    // twenty times a second.
    interval: 50,

    // Are we at the app root?
    atRoot: function() {
      var path = this.location.pathname.replace(/[^\/]$/, '$&/');
      return path === this.root && !this.getSearch();
    },

    // Does the pathname match the root?
    matchRoot: function() {
      var path = this.decodeFragment(this.location.pathname);
      var rootPath = path.slice(0, this.root.length - 1) + '/';
      return rootPath === this.root;
    },

    // Unicode characters in `location.pathname` are percent encoded so they're
    // decoded for comparison. `%25` should not be decoded since it may be part
    // of an encoded parameter.
    decodeFragment: function(fragment) {
      return decodeURI(fragment.replace(/%25/g, '%2525'));
    },

    // In IE6, the hash fragment and search params are incorrect if the
    // fragment contains `?`.
    getSearch: function() {
      var match = this.location.href.replace(/#.*/, '').match(/\?.+/);
      return match ? match[0] : '';
    },

    // Gets the true hash value. Cannot use location.hash directly due to bug
    // in Firefox where location.hash will always be decoded.
    getHash: function(window) {
      var match = (window || this).location.href.match(/#(.*)$/);
      return match ? match[1] : '';
    },

    // Get the pathname and search params, without the root.
    getPath: function() {
      var path = this.decodeFragment(
        this.location.pathname + this.getSearch()
      ).slice(this.root.length - 1);
      return path.charAt(0) === '/' ? path.slice(1) : path;
    },

    // Get the cross-browser normalized URL fragment from the path or hash.
    getFragment: function(fragment) {
      if (fragment == null) {
        if (this._usePushState || !this._wantsHashChange) {
          fragment = this.getPath();
        } else {
          fragment = this.getHash();
        }
      }
      return fragment.replace(routeStripper, '');
    },

    // Start the hash change handling, returning `true` if the current URL matches
    // an existing route, and `false` otherwise.
    start: function(options) {
      if (History.started) throw new Error('Backbone.history has already been started');
      History.started = true;

      // Figure out the initial configuration. Do we need an iframe?
      // Is pushState desired ... is it available?
      this.options          = _.extend({root: '/'}, this.options, options);
      this.root             = this.options.root;
      this._wantsHashChange = this.options.hashChange !== false;
      this._hasHashChange   = 'onhashchange' in window && (document.documentMode === void 0 || document.documentMode > 7);
      this._useHashChange   = this._wantsHashChange && this._hasHashChange;
      this._wantsPushState  = !!this.options.pushState;
      this._hasPushState    = !!(this.history && this.history.pushState);
      this._usePushState    = this._wantsPushState && this._hasPushState;
      this.fragment         = this.getFragment();

      // Normalize root to always include a leading and trailing slash.
      this.root = ('/' + this.root + '/').replace(rootStripper, '/');

      // Transition from hashChange to pushState or vice versa if both are
      // requested.
      if (this._wantsHashChange && this._wantsPushState) {

        // If we've started off with a route from a `pushState`-enabled
        // browser, but we're currently in a browser that doesn't support it...
        if (!this._hasPushState && !this.atRoot()) {
          var rootPath = this.root.slice(0, -1) || '/';
          this.location.replace(rootPath + '#' + this.getPath());
          // Return immediately as browser will do redirect to new url
          return true;

        // Or if we've started out with a hash-based route, but we're currently
        // in a browser where it could be `pushState`-based instead...
        } else if (this._hasPushState && this.atRoot()) {
          this.navigate(this.getHash(), {replace: true});
        }

      }

      // Proxy an iframe to handle location events if the browser doesn't
      // support the `hashchange` event, HTML5 history, or the user wants
      // `hashChange` but not `pushState`.
      if (!this._hasHashChange && this._wantsHashChange && !this._usePushState) {
        this.iframe = document.createElement('iframe');
        this.iframe.src = 'javascript:0';
        this.iframe.style.display = 'none';
        this.iframe.tabIndex = -1;
        var body = document.body;
        // Using `appendChild` will throw on IE < 9 if the document is not ready.
        var iWindow = body.insertBefore(this.iframe, body.firstChild).contentWindow;
        iWindow.document.open();
        iWindow.document.close();
        iWindow.location.hash = '#' + this.fragment;
      }

      // Add a cross-platform `addEventListener` shim for older browsers.
      var addEventListener = window.addEventListener || function(eventName, listener) {
        return attachEvent('on' + eventName, listener);
      };

      // Depending on whether we're using pushState or hashes, and whether
      // 'onhashchange' is supported, determine how we check the URL state.
      if (this._usePushState) {
        addEventListener('popstate', this.checkUrl, false);
      } else if (this._useHashChange && !this.iframe) {
        addEventListener('hashchange', this.checkUrl, false);
      } else if (this._wantsHashChange) {
        this._checkUrlInterval = setInterval(this.checkUrl, this.interval);
      }

      if (!this.options.silent) return this.loadUrl();
    },

    // Disable Backbone.history, perhaps temporarily. Not useful in a real app,
    // but possibly useful for unit testing Routers.
    stop: function() {
      // Add a cross-platform `removeEventListener` shim for older browsers.
      var removeEventListener = window.removeEventListener || function(eventName, listener) {
        return detachEvent('on' + eventName, listener);
      };

      // Remove window listeners.
      if (this._usePushState) {
        removeEventListener('popstate', this.checkUrl, false);
      } else if (this._useHashChange && !this.iframe) {
        removeEventListener('hashchange', this.checkUrl, false);
      }

      // Clean up the iframe if necessary.
      if (this.iframe) {
        document.body.removeChild(this.iframe);
        this.iframe = null;
      }

      // Some environments will throw when clearing an undefined interval.
      if (this._checkUrlInterval) clearInterval(this._checkUrlInterval);
      History.started = false;
    },

    // Add a route to be tested when the fragment changes. Routes added later
    // may override previous routes.
    route: function(route, callback) {
      this.handlers.unshift({route: route, callback: callback});
    },

    // Checks the current URL to see if it has changed, and if it has,
    // calls `loadUrl`, normalizing across the hidden iframe.
    checkUrl: function(e) {
      var current = this.getFragment();

      // If the user pressed the back button, the iframe's hash will have
      // changed and we should use that for comparison.
      if (current === this.fragment && this.iframe) {
        current = this.getHash(this.iframe.contentWindow);
      }

      if (current === this.fragment) return false;
      if (this.iframe) this.navigate(current);
      this.loadUrl();
    },

    // Attempt to load the current URL fragment. If a route succeeds with a
    // match, returns `true`. If no defined routes matches the fragment,
    // returns `false`.
    loadUrl: function(fragment) {
      // If the root doesn't match, no routes can match either.
      if (!this.matchRoot()) return false;
      fragment = this.fragment = this.getFragment(fragment);
      return _.some(this.handlers, function(handler) {
        if (handler.route.test(fragment)) {
          handler.callback(fragment);
          return true;
        }
      });
    },

    // Save a fragment into the hash history, or replace the URL state if the
    // 'replace' option is passed. You are responsible for properly URL-encoding
    // the fragment in advance.
    //
    // The options object can contain `trigger: true` if you wish to have the
    // route callback be fired (not usually desirable), or `replace: true`, if
    // you wish to modify the current URL without adding an entry to the history.
    navigate: function(fragment, options) {
      if (!History.started) return false;
      if (!options || options === true) options = {trigger: !!options};

      // Normalize the fragment.
      fragment = this.getFragment(fragment || '');

      // Don't include a trailing slash on the root.
      var rootPath = this.root;
      if (fragment === '' || fragment.charAt(0) === '?') {
        rootPath = rootPath.slice(0, -1) || '/';
      }
      var url = rootPath + fragment;

      // Strip the hash and decode for matching.
      fragment = this.decodeFragment(fragment.replace(pathStripper, ''));

      if (this.fragment === fragment) return;
      this.fragment = fragment;

      // If pushState is available, we use it to set the fragment as a real URL.
      if (this._usePushState) {
        this.history[options.replace ? 'replaceState' : 'pushState']({}, document.title, url);

      // If hash changes haven't been explicitly disabled, update the hash
      // fragment to store history.
      } else if (this._wantsHashChange) {
        this._updateHash(this.location, fragment, options.replace);
        if (this.iframe && fragment !== this.getHash(this.iframe.contentWindow)) {
          var iWindow = this.iframe.contentWindow;

          // Opening and closing the iframe tricks IE7 and earlier to push a
          // history entry on hash-tag change.  When replace is true, we don't
          // want this.
          if (!options.replace) {
            iWindow.document.open();
            iWindow.document.close();
          }

          this._updateHash(iWindow.location, fragment, options.replace);
        }

      // If you've told us that you explicitly don't want fallback hashchange-
      // based history, then `navigate` becomes a page refresh.
      } else {
        return this.location.assign(url);
      }
      if (options.trigger) return this.loadUrl(fragment);
    },

    // Update the hash location, either replacing the current entry, or adding
    // a new one to the browser history.
    _updateHash: function(location, fragment, replace) {
      if (replace) {
        var href = location.href.replace(/(javascript:|#).*$/, '');
        location.replace(href + '#' + fragment);
      } else {
        // Some browsers require that `hash` contains a leading #.
        location.hash = '#' + fragment;
      }
    }

  });

  // Create the default Backbone.history.
  Backbone.history = new History;

  // Helpers
  // -------

  // Helper function to correctly set up the prototype chain for subclasses.
  // Similar to `goog.inherits`, but uses a hash of prototype properties and
  // class properties to be extended.
  var extend = function(protoProps, staticProps) {
    var parent = this;
    var child;

    // The constructor function for the new subclass is either defined by you
    // (the "constructor" property in your `extend` definition), or defaulted
    // by us to simply call the parent constructor.
    if (protoProps && _.has(protoProps, 'constructor')) {
      child = protoProps.constructor;
    } else {
      child = function(){ return parent.apply(this, arguments); };
    }

    // Add static properties to the constructor function, if supplied.
    _.extend(child, parent, staticProps);

    // Set the prototype chain to inherit from `parent`, without calling
    // `parent`'s constructor function and add the prototype properties.
    child.prototype = _.create(parent.prototype, protoProps);
    child.prototype.constructor = child;

    // Set a convenience property in case the parent's prototype is needed
    // later.
    child.__super__ = parent.prototype;

    return child;
  };

  // Set up inheritance for the model, collection, router, view and history.
  Model.extend = Collection.extend = Router.extend = View.extend = History.extend = extend;

  // Throw an error when a URL is needed, and none is supplied.
  var urlError = function() {
    throw new Error('A "url" property or function must be specified');
  };

  // Wrap an optional error callback with a fallback error event.
  var wrapError = function(model, options) {
    var error = options.error;
    options.error = function(resp) {
      if (error) error.call(options.context, model, resp, options);
      model.trigger('error', model, resp, options);
    };
  };

  return Backbone;
});

/*global define */
define('backbone.noconflict',['backbone'], function (Backbone) {
    return Backbone.noConflict();
});

/*
  Copyright 2010, François de Metz <francois@2metz.fr>
*/

/**
 * Disco Strophe Plugin
 * Implement http://xmpp.org/extensions/xep-0030.html
 * TODO: manage node hierarchies, and node on info request
 */

(function (root, factory) {
    if (typeof define === 'function' && define.amd) {
        // AMD. Register as an anonymous module.
        define("strophe.disco", [
            "strophe"
        ], function (Strophe) {
            factory(
                Strophe.Strophe,
                Strophe.$build,
                Strophe.$iq ,
                Strophe.$msg,
                Strophe.$pres
            );
            return Strophe;
        });
    } else {
        // Browser globals
        factory(
            root.Strophe,
            root.$build,
            root.$iq ,
            root.$msg,
            root.$pres
        );
    }
}(this, function (Strophe, $build, $iq, $msg, $pres) {

Strophe.addConnectionPlugin('disco',
{
    _connection: null,
    _identities : [],
    _features : [],
    _items : [],
    /** Function: init
     * Plugin init
     *
     * Parameters:
     *   (Strophe.Connection) conn - Strophe connection
     */
    init: function(conn)
    {
    this._connection = conn;
        this._identities = [];
        this._features   = [];
        this._items      = [];
        // disco info
        conn.addHandler(this._onDiscoInfo.bind(this), Strophe.NS.DISCO_INFO, 'iq', 'get', null, null);
        // disco items
        conn.addHandler(this._onDiscoItems.bind(this), Strophe.NS.DISCO_ITEMS, 'iq', 'get', null, null);
    },
    /** Function: addIdentity
     * See http://xmpp.org/registrar/disco-categories.html
     * Parameters:
     *   (String) category - category of identity (like client, automation, etc ...)
     *   (String) type - type of identity (like pc, web, bot , etc ...)
     *   (String) name - name of identity in natural language
     *   (String) lang - lang of name parameter
     *
     * Returns:
     *   Boolean
     */
    addIdentity: function(category, type, name, lang)
    {
        for (var i=0; i<this._identities.length; i++)
        {
            if (this._identities[i].category == category &&
                this._identities[i].type == type &&
                this._identities[i].name == name &&
                this._identities[i].lang == lang)
            {
                return false;
            }
        }
        this._identities.push({category: category, type: type, name: name, lang: lang});
        return true;
    },
    /** Function: addFeature
     *
     * Parameters:
     *   (String) var_name - feature name (like jabber:iq:version)
     *
     * Returns:
     *   boolean
     */
    addFeature: function(var_name)
    {
        for (var i=0; i<this._features.length; i++)
        {
             if (this._features[i] == var_name)
                 return false;
        }
        this._features.push(var_name);
        return true;
    },
    /** Function: removeFeature
     *
     * Parameters:
     *   (String) var_name - feature name (like jabber:iq:version)
     *
     * Returns:
     *   boolean
     */
    removeFeature: function(var_name)
    {
        for (var i=0; i<this._features.length; i++)
        {
             if (this._features[i] === var_name){
                 this._features.splice(i,1);
                 return true;
             }
        }
        return false;
    },
    /** Function: addItem
     *
     * Parameters:
     *   (String) jid
     *   (String) name
     *   (String) node
     *   (Function) call_back
     *
     * Returns:
     *   boolean
     */
    addItem: function(jid, name, node, call_back)
    {
        if (node && !call_back)
            return false;
        this._items.push({jid: jid, name: name, node: node, call_back: call_back});
        return true;
    },
    /** Function: info
     * Info query
     *
     * Parameters:
     *   (Function) call_back
     *   (String) jid
     *   (String) node
     */
    info: function(jid, node, success, error, timeout)
    {
        var attrs = {xmlns: Strophe.NS.DISCO_INFO};
        if (node)
            attrs.node = node;

        var info = $iq({from:this._connection.jid,
                         to:jid, type:'get'}).c('query', attrs);
        this._connection.sendIQ(info, success, error, timeout);
    },
    /** Function: items
     * Items query
     *
     * Parameters:
     *   (Function) call_back
     *   (String) jid
     *   (String) node
     */
    items: function(jid, node, success, error, timeout)
    {
        var attrs = {xmlns: Strophe.NS.DISCO_ITEMS};
        if (node)
            attrs.node = node;

        var items = $iq({from:this._connection.jid,
                         to:jid, type:'get'}).c('query', attrs);
        this._connection.sendIQ(items, success, error, timeout);
    },

    /** PrivateFunction: _buildIQResult
     */
    _buildIQResult: function(stanza, query_attrs)
    {
        var id   =  stanza.getAttribute('id');
        var from = stanza.getAttribute('from');
        var iqresult = $iq({type: 'result', id: id});

        if (from !== null) {
            iqresult.attrs({to: from});
        }

        return iqresult.c('query', query_attrs);
    },

    /** PrivateFunction: _onDiscoInfo
     * Called when receive info request
     */
    _onDiscoInfo: function(stanza)
    {
        var node = stanza.getElementsByTagName('query')[0].getAttribute('node');
        var attrs = {xmlns: Strophe.NS.DISCO_INFO};
        var i;
        if (node)
        {
            attrs.node = node;
        }
        var iqresult = this._buildIQResult(stanza, attrs);
        for (i=0; i<this._identities.length; i++)
        {
            attrs = {category: this._identities[i].category,
                         type    : this._identities[i].type};
            if (this._identities[i].name)
                attrs.name = this._identities[i].name;
            if (this._identities[i].lang)
                attrs['xml:lang'] = this._identities[i].lang;
            iqresult.c('identity', attrs).up();
        }
        for (i=0; i<this._features.length; i++)
        {
            iqresult.c('feature', {'var':this._features[i]}).up();
        }
        this._connection.send(iqresult.tree());
        return true;
    },
    /** PrivateFunction: _onDiscoItems
     * Called when receive items request
     */
    _onDiscoItems: function(stanza)
    {
        var query_attrs = {xmlns: Strophe.NS.DISCO_ITEMS};
        var node = stanza.getElementsByTagName('query')[0].getAttribute('node');
        var items, i;
        if (node)
        {
            query_attrs.node = node;
            items = [];
            for (i = 0; i < this._items.length; i++)
            {
                if (this._items[i].node == node)
                {
                    items = this._items[i].call_back(stanza);
                    break;
                }
            }
        }
        else
        {
            items = this._items;
        }
        var iqresult = this._buildIQResult(stanza, query_attrs);
        for (i = 0; i < items.length; i++)
        {
            var attrs = {jid:  items[i].jid};
            if (items[i].name)
                attrs.name = items[i].name;
            if (items[i].node)
                attrs.node = items[i].node;
            iqresult.c('item', attrs).up();
        }
        this._connection.send(iqresult.tree());
        return true;
    }
});
}));

/**
 * Backbone localStorage and sessionStorage Adapter
 * Version 0.0.3
 *
 * https://github.com/jcbrand/Backbone.browserStorage
 */
(function (root, factory) {
  if (typeof exports === 'object' && typeof require === 'function') {
    module.exports = factory(require("backbone"), require('underscore'));
  } else if (typeof define === "function" && define.amd) {
    // AMD. Register as an anonymous module.
    define('backbone.browserStorage',["backbone", "underscore"], function(Backbone, _) {
      // Use global variables if the locals are undefined.
      return factory(Backbone || root.Backbone, _ || root._);
    });
  } else {
    factory(Backbone, _);
  }
}(this, function(Backbone, _) {
// A simple module to replace `Backbone.sync` with *browser storage*-based
// persistence. Models are given GUIDS, and saved into a JSON object. Simple
// as that.

// Hold reference to Underscore.js and Backbone.js in the closure in order
// to make things work even if they are removed from the global namespace

// Generate four random hex digits.
function S4() {
   return (((1+Math.random())*0x10000)|0).toString(16).substring(1);
}

// Generate a pseudo-GUID by concatenating random hexadecimal.
function guid() {
   return (S4()+S4()+"-"+S4()+"-"+S4()+"-"+S4()+"-"+S4()+S4()+S4());
}

function contains(array, item) {
  var i = array.length;
  while (i--) if (array[i] === item) return true;
  return false;
}

function extend(obj, props) {
  for (var key in props) { obj[key] = props[key]; }
  return obj;
}

function _browserStorage (name, serializer, type) {
    var _store;
    if (type === 'local' && !window.localStorage ) {
        throw "Backbone.browserStorage: Environment does not support localStorage.";
    } else if (type === 'session' && !window.sessionStorage ) {
        throw "Backbone.browserStorage: Environment does not support sessionStorage.";
    }
    this.name = name;
    this.serializer = serializer || {
        serialize: function(item) {
        return _.isObject(item) ? JSON.stringify(item) : item;
        },
        // fix for "illegal access" error on Android when JSON.parse is passed null
        deserialize: function (data) {
        return data && JSON.parse(data);
        }
    };

    if (type === 'session') {
        this.store = window.sessionStorage;
    } else if (type === 'local') {
        this.store = window.localStorage;
    } else {
        throw "Backbone.browserStorage: No storage type was specified";
    }
    _store = this.store.getItem(this.name);
    this.records = (_store && _store.split(",")) || [];
}

// Our Store is represented by a single JS object in *localStorage* or *sessionStorage*.
// Create it with a meaningful name, like the name you'd give a table.
Backbone.BrowserStorage = {
    local: function (name, serializer) {
        return _browserStorage.bind(this, name, serializer, 'local')();
    },
    session: function (name, serializer) {
        return _browserStorage.bind(this, name, serializer, 'session')();
    }
};

// The browser's local and session stores will be extended with this obj.
var _extension = {

  // Save the current state of the **Store**
  save: function() {
    this.store.setItem(this.name, this.records.join(","));
  },

  // Add a model, giving it a (hopefully)-unique GUID, if it doesn't already
  // have an id of it's own.
  create: function(model) {
    if (!model.id) {
      model.id = guid();
      model.set(model.idAttribute, model.id);
    }
    this.store.setItem(this._itemName(model.id), this.serializer.serialize(model));
    this.records.push(model.id.toString());
    this.save();
    return this.find(model) !== false;
  },

  // Update a model by replacing its copy in `this.data`.
  update: function(model) {
    this.store.setItem(this._itemName(model.id), this.serializer.serialize(model));
    var modelId = model.id.toString();
    if (!contains(this.records, modelId)) {
      this.records.push(modelId);
      this.save();
    }
    return this.find(model) !== false;
  },

  // Retrieve a model from `this.data` by id.
  find: function(model) {
    return this.serializer.deserialize(this.store.getItem(this._itemName(model.id)));
  },

  // Return the array of all models currently in storage.
  findAll: function() {
    var result = [];
    for (var i = 0, id, data; i < this.records.length; i++) {
      id = this.records[i];
      data = this.serializer.deserialize(this.store.getItem(this._itemName(id)));
      if (data !== null) result.push(data);
    }
    return result;
  },

  // Delete a model from `this.data`, returning it.
  destroy: function(model) {
    this.store.removeItem(this._itemName(model.id));
    var modelId = model.id.toString();
    for (var i = 0, id; i < this.records.length; i++) {
      if (this.records[i] === modelId) {
        this.records.splice(i, 1);
      }
    }
    this.save();
    return model;
  },

  browserStorage: function() {
    return {
        session: sessionStorage,
        local: localStorage
    };
  },

  // Clear browserStorage for specific collection.
  _clear: function() {
    var local = this.store, itemRe;

    // Escape special regex characters in id.
    itemRe = new RegExp("^" + this.name.replace(/[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g, "\\$&") + "-");
    
    // Remove id-tracking item (e.g., "foo").
    local.removeItem(this.name);

    // Match all data items (e.g., "foo-ID") and remove.
    for (var k in local) {
      if (itemRe.test(k)) {
        local.removeItem(k);
      }
    }

    this.records.length = 0;
  },

  // Size of browserStorage.
  _storageSize: function() {
    return this.store.length;
  },

  _itemName: function(id) {
    return this.name+"-"+id;
  }

};

extend(Backbone.BrowserStorage.session.prototype, _extension);
extend(Backbone.BrowserStorage.local.prototype, _extension);

// localSync delegate to the model or collection's
// *browserStorage* property, which should be an instance of `Store`.
// window.Store.sync and Backbone.localSync is deprecated, use Backbone.BrowserStorage.sync instead
Backbone.BrowserStorage.sync = Backbone.localSync = function(method, model, options) {
  var store = model.browserStorage || model.collection.browserStorage;

  var resp, errorMessage;
  //If $ is having Deferred - use it.
  var syncDfd = Backbone.$ ?
    (Backbone.$.Deferred && Backbone.$.Deferred()) :
    (Backbone.Deferred && Backbone.Deferred());

  try {

    switch (method) {
      case "read":
        resp = model.id !== undefined ? store.find(model) : store.findAll();
        break;
      case "create":
        resp = store.create(model);
        break;
      case "update":
        resp = store.update(model);
        break;
      case "delete":
        resp = store.destroy(model);
        break;
    }

  } catch(error) {
    if (error.code === 22 && store._storageSize() === 0)
      errorMessage = "Private browsing is unsupported";
    else
      errorMessage = error.message;
  }

  if (resp) {
    if (options && options.success) {
      if (Backbone.VERSION === "0.9.10") {
        options.success(model, resp, options);
      } else {
        options.success(resp);
      }
    }
    if (syncDfd) {
      syncDfd.resolve(resp);
    }

  } else {
    errorMessage = errorMessage ? errorMessage
                                : "Record Not Found";

    if (options && options.error)
      if (Backbone.VERSION === "0.9.10") {
        options.error(model, errorMessage, options);
      } else {
        options.error(errorMessage);
      }

    if (syncDfd)
      syncDfd.reject(errorMessage);
  }

  // add compatibility with $.ajax
  // always execute callback for success and error
  if (options && options.complete) options.complete(resp);

  return syncDfd && syncDfd.promise();
};

Backbone.ajaxSync = Backbone.sync;

Backbone.getSyncMethod = function(model) {
  if(model.browserStorage || (model.collection && model.collection.browserStorage)) {
    return Backbone.localSync;
  }
  return Backbone.ajaxSync;
};

// Override 'Backbone.sync' to default to localSync,
// the original 'Backbone.sync' is still available in 'Backbone.ajaxSync'
Backbone.sync = function(method, model, options) {
  return Backbone.getSyncMethod(model).apply(this, [method, model, options]);
};

return Backbone.BrowserStorage;
}));

/*!
 * Backbone.Overview 
 *
 * Copyright (c) 2014, JC Brand <jc@opkode.com>
 * Licensed under the Mozilla Public License (MPL) 
 */
(function (root, factory) {
    if (typeof define === 'function' && define.amd) {
        define('backbone.overview',["underscore", "backbone"], factory);
   } else {
      // RequireJS isn't being used.
      // Assume underscore and backbone are loaded in <script> tags
        factory(_ || root._, Backbone || root.Backbone);
   }
}(this, function (_, Backbone) {
    "use strict";
    var Overview = Backbone.Overview = function (options) {
        /* An Overview is a View that contains and keeps track of sub-views.
         * Kind of like what a Collection is to a Model.
         */
        var that = this;
        this.views = {};
        this.keys = _.partial(_.keys, this.views);
        this.getAll = _.partial(_.identity, this.views);

        this.get = function (id) {
            return that.views[id];
        };

        this.xget = function (id) {
            /* Exclusive get. Returns all instances except the given id. */
            return _.filter(that.views, function (view, vid) {
                return vid !== id;
            });
        };

        this.add = function (id, view) {
            that.views[id] = view;
            return view;
        };

        this.remove = function (id) {
            if (typeof id === "undefined") {
                new Backbone.View().remove.apply(that);
            }
            var view = that.views[id];
            if (view) {
                delete that.views[id];
                view.remove();
                return view;
            }
        };

        this.removeAll = function () {
            _.each(_.keys(that.views), that.remove);
            return that;
        };
        Backbone.View.apply(this, Array.prototype.slice.apply(arguments));
    };

    var methods = [
        'all', 'any', 'chain', 'collect', 'contains', 'detect',
        'difference', 'drop', 'each', 'every', 'filter', 'find',
        'first', 'foldl', 'foldr', 'forEach', 'head', 'include',
        'indexOf', 'initial', 'inject', 'invoke', 'isEmpty',
        'last', 'lastIndexOf', 'map', 'max', 'min', 'reduce',
        'reduceRight', 'reject', 'rest', 'sample', 'select',
        'shuffle', 'size', 'some', 'sortBy', 'tail', 'take',
        'toArray', 'without',
    ];
    // Mix in each Underscore method as a proxy to `Overview#view`.
    _.each(methods, function(method) {
        Overview.prototype[method] = function() {
            var args = Array.prototype.slice.call(arguments);
            args.unshift(this.views);
            return _[method].apply(_, args);
        };
    });
    _.extend(Overview.prototype, Backbone.View.prototype);
    Overview.extend = Backbone.View.extend;
    return Backbone.Overview;
}));

// Converse.js (A browser based XMPP chat client)
// http://conversejs.org
//
// Copyright (c) 2012-2017, Jan-Carel Brand <jc@opkode.com>
// Licensed under the Mozilla Public License (MPLv2)
//
/*global Backbone, define, window, document, JSON */
(function (root, factory) {
    define('converse-core',["sizzle",
            "jquery.noconflict",
            "lodash.noconflict",
            "polyfill",
            "utils",
            "moment_with_locales",
            "strophe",
            "pluggable",
            "backbone.noconflict",
            "strophe.disco",
            "backbone.browserStorage",
            "backbone.overview",
    ], factory);
}(this, function (sizzle, $, _, polyfill, utils, moment, Strophe, pluggable, Backbone) {
    /* Cannot use this due to Safari bug.
     * See https://github.com/jcbrand/converse.js/issues/196
     */
    // "use strict";

    // Strophe globals
    var $build = Strophe.$build;
    var $iq = Strophe.$iq;
    var $msg = Strophe.$msg;
    var $pres = Strophe.$pres;
    var b64_sha1 = Strophe.SHA1.b64_sha1;
    Strophe = Strophe.Strophe;

    // Use Mustache style syntax for variable interpolation
    /* Configuration of Lodash templates (this config is distinct to the
     * config of requirejs-tpl in main.js). This one is for normal inline templates.
     */
    _.templateSettings = {
        evaluate : /\{\[([\s\S]+?)\]\}/g,
        interpolate : /\{\{([\s\S]+?)\}\}/g
    };

    var _converse = {};
    _converse.templates = {};
    _.extend(_converse, Backbone.Events);
    _converse.promises = {
        'cachedRoster': new $.Deferred(),
        'chatBoxesFetched': new $.Deferred(),
        'connected': new $.Deferred(),
        'pluginsInitialized': new $.Deferred(),
        'roster': new $.Deferred(),
        'rosterContactsFetched': new $.Deferred(),
        'rosterGroupsFetched': new $.Deferred(),
        'rosterInitialized': new $.Deferred(),
        'statusInitialized': new $.Deferred()
    };
    _converse.emit = function (name) {
        _converse.trigger.apply(this, arguments);
        var promise = _converse.promises[name];
        if (!_.isUndefined(promise)) {
            promise.resolve();
        }
    };

    _converse.core_plugins = [
        'converse-bookmarks',
        'converse-chatview',
        'converse-controlbox',
        'converse-core',
        'converse-dragresize',
        'converse-headline',
        'converse-mam',
        'converse-minimize',
        'converse-muc',
        'converse-notification',
        'converse-otr',
        'converse-ping',
        'converse-register',
        'converse-rosterview',
        'converse-vcard'
    ];

    // Make converse pluggable
    pluggable.enable(_converse, '_converse', 'pluggable');

    // Module-level constants
    _converse.STATUS_WEIGHTS = {
        'offline':      6,
        'unavailable':  5,
        'xa':           4,
        'away':         3,
        'dnd':          2,
        'chat':         1, // We currently don't differentiate between "chat" and "online"
        'online':       1
    };
    _converse.PRETTY_CHAT_STATUS = {
        'offline':      'Offline',
        'unavailable':  'Unavailable',
        'xa':           'Extended Away',
        'away':         'Away',
        'dnd':          'Do not disturb',
        'chat':         'Chattty',
        'online':       'Online'
    };
    _converse.ANONYMOUS  = "anonymous";
    _converse.CLOSED = 'closed';
    _converse.EXTERNAL = "external";
    _converse.LOGIN = "login";
    _converse.LOGOUT = "logout";
    _converse.OPENED = 'opened';
    _converse.PREBIND = "prebind";

    var PRETTY_CONNECTION_STATUS = {
        0: 'ERROR',
        1: 'CONNECTING',
        2: 'CONNFAIL',
        3: 'AUTHENTICATING',
        4: 'AUTHFAIL',
        5: 'CONNECTED',
        6: 'DISCONNECTED',
        7: 'DISCONNECTING',
        8: 'ATTACHED',
        9: 'REDIRECT'
    };

    var DEFAULT_IMAGE_TYPE = 'image/png';
    var DEFAULT_IMAGE = "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";

    _converse.log = function (txt, level) {
        var logger;
        if (_.isUndefined(console) || _.isUndefined(console.log)) {
            logger = { log: _.noop, error: _.noop };
        } else {
            logger = console;
        }
        if (_converse.debug) {
            if (level === 'error') {
                logger.log('ERROR: '+txt);
            } else {
                logger.log(txt);
            }
        }
    };


    _converse.initialize = function (settings, callback) {
        "use strict";
        settings = !_.isUndefined(settings) ? settings : {};
        var init_deferred = new $.Deferred();

        if (!_.isUndefined(_converse.chatboxes)) {
            // Looks like _converse.initialized was called again without logging
            // out or disconnecting in the previous session.
            // This happens in tests. We therefore first clean up.
            _converse.connection.reset();
            _converse.off();
            _converse.stopListening();
            _converse._tearDown();
        }

        var unloadevent;
        if ('onpagehide' in window) {
            // Pagehide gets thrown in more cases than unload. Specifically it
            // gets thrown when the page is cached and not just
            // closed/destroyed. It's the only viable event on mobile Safari.
            // https://www.webkit.org/blog/516/webkit-page-cache-ii-the-unload-event/
            unloadevent = 'pagehide';
        } else if ('onbeforeunload' in window) {
            unloadevent = 'beforeunload';
        } else if ('onunload' in window) {
            unloadevent = 'unload';
        }

        // Logging
        Strophe.log = function (level, msg) { _converse.log(level+' '+msg, level); };
        Strophe.error = function (msg) { _converse.log(msg, 'error'); };

        // Add Strophe Namespaces
        Strophe.addNamespace('CARBONS', 'urn:xmpp:carbons:2');
        Strophe.addNamespace('CHATSTATES', 'http://jabber.org/protocol/chatstates');
        Strophe.addNamespace('CSI', 'urn:xmpp:csi:0');
        Strophe.addNamespace('DELAY', 'urn:xmpp:delay');
        Strophe.addNamespace('HINTS', 'urn:xmpp:hints');
        Strophe.addNamespace('NICK', 'http://jabber.org/protocol/nick');
        Strophe.addNamespace('PUBSUB', 'http://jabber.org/protocol/pubsub');
        Strophe.addNamespace('ROSTERX', 'http://jabber.org/protocol/rosterx');
        Strophe.addNamespace('XFORM', 'jabber:x:data');

        // Instance level constants
        this.TIMEOUTS = { // Set as module attr so that we can override in tests.
            'PAUSED':     10000,
            'INACTIVE':   90000
        };

        // Internationalization
        this.locale = utils.getLocale(settings.i18n, utils.isConverseLocale);
        if (!moment.locale) {
            //moment.lang is deprecated after 2.8.1, use moment.locale instead
            moment.locale = moment.lang;
        }
        moment.locale(utils.getLocale(settings.i18n, utils.isMomentLocale));
        var __ = _converse.__ = utils.__.bind(_converse);
        _converse.___ = utils.___;

        // XEP-0085 Chat states
        // http://xmpp.org/extensions/xep-0085.html
        this.INACTIVE = 'inactive';
        this.ACTIVE = 'active';
        this.COMPOSING = 'composing';
        this.PAUSED = 'paused';
        this.GONE = 'gone';

        // Default configuration values
        // ----------------------------
        this.default_settings = {
            allow_contact_requests: true,
            allow_non_roster_messaging: false,
            animate: true,
            authentication: 'login', // Available values are "login", "prebind", "anonymous" and "external".
            auto_away: 0, // Seconds after which user status is set to 'away'
            auto_login: false, // Currently only used in connection with anonymous login
            auto_reconnect: false,
            auto_subscribe: false,
            auto_xa: 0, // Seconds after which user status is set to 'xa'
            blacklisted_plugins: [],
            bosh_service_url: undefined,
            connection_options: {},
            credentials_url: null, // URL from where login credentials can be fetched
            csi_waiting_time: 0, // Support for XEP-0352. Seconds before client is considered idle and CSI is sent out.
            debug: false,
            default_state: 'online',
            expose_rid_and_sid: false,
            filter_by_resource: false,
            forward_messages: false,
            hide_offline_users: false,
            include_offline_state: false,
            jid: undefined,
            keepalive: true,
            locked_domain: undefined,
            message_carbons: true,
            message_storage: 'session',
            password: undefined,
            prebind_url: null,
            priority: 0,
            registration_domain: '',
            rid: undefined,
            roster_groups: true,
            show_only_online_users: false,
            show_send_button: false,
            sid: undefined,
            storage: 'session',
            strict_plugin_dependencies: false,
            synchronize_availability: true,
            websocket_url: undefined,
            whitelisted_plugins: [],
            xhr_custom_status: false,
            xhr_custom_status_url: '',
        };
        _.assignIn(this, this.default_settings);
        // Allow only whitelisted configuration attributes to be overwritten
        _.assignIn(this, _.pick(settings, _.keys(this.default_settings)));

        if (this.authentication === _converse.ANONYMOUS) {
            if (this.auto_login && !this.jid) {
                throw new Error("Config Error: you need to provide the server's " +
                      "domain via the 'jid' option when using anonymous " +
                      "authentication with auto_login.");
            }
        }

        $.fx.off = !this.animate;

        // Module-level variables
        // ----------------------
        this.callback = callback || _.noop;
        /* When reloading the page:
         * For new sessions, we need to send out a presence stanza to notify
         * the server/network that we're online.
         * When re-attaching to an existing session (e.g. via the keepalive
         * option), we don't need to again send out a presence stanza, because
         * it's as if "we never left" (see onConnectStatusChanged).
         * https://github.com/jcbrand/converse.js/issues/521
         */
        this.send_initial_presence = true;
        this.msg_counter = 0;
        this.user_settings = settings; // Save the user settings so that they can be used by plugins

        // Module-level functions
        // ----------------------
        this.getViewForChatBox = function (chatbox) {
            if (!chatbox) { return; }
            return _converse.chatboxviews.get(chatbox.get('id'));
        };

        this.generateResource = function () {
            return '/converse.js-' + Math.floor(Math.random()*139749825).toString();
        };

        this.sendCSI = function (stat) {
            /* Send out a Chat Status Notification (XEP-0352)
             *
             * Parameters:
             *  (String) stat: The user's chat status
             */
            /* Send out a Chat Status Notification (XEP-0352) */
            // XXX if (converse.features[Strophe.NS.CSI] || true) {
            _converse.connection.send($build(stat, {xmlns: Strophe.NS.CSI}));
            _converse.inactive = (stat === _converse.INACTIVE) ? true : false;
        };

        this.onUserActivity = function () {
            /* Resets counters and flags relating to CSI and auto_away/auto_xa */
            if (_converse.idle_seconds > 0) {
                _converse.idle_seconds = 0;
            }
            if (!_converse.connection.authenticated) {
                // We can't send out any stanzas when there's no authenticated connection.
                // converse can happen when the connection reconnects.
                return;
            }
            if (_converse.inactive) {
                _converse.sendCSI(_converse.ACTIVE);
            }
            if (_converse.auto_changed_status === true) {
                _converse.auto_changed_status = false;
                // XXX: we should really remember the original state here, and
                // then set it back to that...
                _converse.xmppstatus.setStatus(_converse.default_state);
            }
        };

        this.onEverySecond = function () {
            /* An interval handler running every second.
             * Used for CSI and the auto_away and auto_xa features.
             */
            if (!_converse.connection.authenticated) {
                // We can't send out any stanzas when there's no authenticated connection.
                // This can happen when the connection reconnects.
                return;
            }
            var stat = _converse.xmppstatus.getStatus();
            _converse.idle_seconds++;
            if (_converse.csi_waiting_time > 0 &&
                    _converse.idle_seconds > _converse.csi_waiting_time &&
                    !_converse.inactive) {
                _converse.sendCSI(_converse.INACTIVE);
            }
            if (_converse.auto_away > 0 &&
                    _converse.idle_seconds > _converse.auto_away &&
                    stat !== 'away' && stat !== 'xa' && stat !== 'dnd') {
                _converse.auto_changed_status = true;
                _converse.xmppstatus.setStatus('away');
            } else if (_converse.auto_xa > 0 &&
                    _converse.idle_seconds > _converse.auto_xa &&
                    stat !== 'xa' && stat !== 'dnd') {
                _converse.auto_changed_status = true;
                _converse.xmppstatus.setStatus('xa');
            }
        };

        this.registerIntervalHandler = function () {
            /* Set an interval of one second and register a handler for it.
             * Required for the auto_away, auto_xa and csi_waiting_time features.
             */
            if (_converse.auto_away < 1 && _converse.auto_xa < 1 && _converse.csi_waiting_time < 1) {
                // Waiting time of less then one second means features aren't used.
                return;
            }
            _converse.idle_seconds = 0;
            _converse.auto_changed_status = false; // Was the user's status changed by _converse.js?
            window.addEventListener('click', _converse.onUserActivity);
            window.addEventListener('focus', _converse.onUserActivity);
            window.addEventListener('keypress', _converse.onUserActivity);
            window.addEventListener('mousemove', _converse.onUserActivity);
            window.addEventListener(unloadevent, _converse.onUserActivity);
            _converse.everySecondTrigger = window.setInterval(_converse.onEverySecond, 1000);
        };

        this.giveFeedback = function (subject, klass, message) {
            var els = document.querySelectorAll('.conn-feedback');
            _.forEach(els, function (el) {
                el.classList.add('conn-feedback');
                el.textContent = subject;
                if (klass) {
                    el.classList.add(klass);
                } else {
                    el.classList.remove('error');
                }
            });
            _converse.emit('feedback', {
                'klass': klass,
                'message': message,
                'subject': subject
            });
        };

        this.rejectPresenceSubscription = function (jid, message) {
            /* Reject or cancel another user's subscription to our presence updates.
             *
             *  Parameters:
             *    (String) jid - The Jabber ID of the user whose subscription
             *      is being canceled.
             *    (String) message - An optional message to the user
             */
            var pres = $pres({to: jid, type: "unsubscribed"});
            if (message && message !== "") { pres.c("status").t(message); }
            _converse.connection.send(pres);
        };

        this.reconnect = _.debounce(function () {
            _converse.log('RECONNECTING');
            _converse.log('The connection has dropped, attempting to reconnect.');
            _converse.giveFeedback(
                __("Reconnecting"),
                'warn',
                __('The connection has dropped, attempting to reconnect.')
            );
            _converse.connection.reconnecting = true;
            _converse._tearDown();
            _converse.logIn(null, true);
        }, 3000, {'leading': true});

        this.disconnect = function () {
            _converse.log('DISCONNECTED');
            delete _converse.connection.reconnecting;
            _converse.connection.reset();
            _converse._tearDown();
            _converse.chatboxviews.closeAllChatBoxes();
            _converse.emit('disconnected');
        };

        this.onDisconnected = function () {
            /* Gets called once strophe's status reaches Strophe.Status.DISCONNECTED.
             * Will either start a teardown process for converse.js or attempt
             * to reconnect.
             */
            if (_converse.disconnection_cause === Strophe.Status.AUTHFAIL) {
                if (_converse.credentials_url && _converse.auto_reconnect) {
                    /* In this case, we reconnect, because we might be receiving
                     * expirable tokens from the credentials_url.
                     */
                    _converse.emit('will-reconnect');
                    return _converse.reconnect();
                } else {
                    return _converse.disconnect();
                }
            } else if (_converse.disconnection_cause === _converse.LOGOUT ||
                    _converse.disconnection_reason === "host-unknown" ||
                    !_converse.auto_reconnect) {
                return _converse.disconnect();
            }
            _converse.emit('will-reconnect');
            _converse.reconnect();
        };

        this.setDisconnectionCause = function (cause, reason, override) {
            /* Used to keep track of why we got disconnected, so that we can
             * decide on what the next appropriate action is (in onDisconnected)
             */
            if (_.isUndefined(cause)) {
                delete _converse.disconnection_cause;
                delete _converse.disconnection_reason;
            } else if (_.isUndefined(_converse.disconnection_cause) || override) {
                _converse.disconnection_cause = cause;
                _converse.disconnection_reason = reason;
            }
        };

        this.onConnectStatusChanged = function (status, condition) {
            /* Callback method called by Strophe as the Strophe.Connection goes
             * through various states while establishing or tearing down a
             * connection.
             */
            _converse.log("Status changed to: "+PRETTY_CONNECTION_STATUS[status]);
            if (status === Strophe.Status.CONNECTED || status === Strophe.Status.ATTACHED) {
                // By default we always want to send out an initial presence stanza.
                _converse.send_initial_presence = true;
                _converse.setDisconnectionCause();
                if (_converse.connection.reconnecting) {
                    _converse.log(status === Strophe.Status.CONNECTED ? 'Reconnected' : 'Reattached');
                    _converse.onConnected(true);
                } else {
                    _converse.log(status === Strophe.Status.CONNECTED ? 'Connected' : 'Attached');
                    if (_converse.connection.restored) {
                        // No need to send an initial presence stanza when
                        // we're restoring an existing session.
                        _converse.send_initial_presence = false;
                    }
                    _converse.onConnected();
                }
            } else if (status === Strophe.Status.DISCONNECTED) {
                _converse.setDisconnectionCause(status, condition);
                _converse.onDisconnected();
            } else if (status === Strophe.Status.ERROR) {
                _converse.giveFeedback(
                    __('Connection error'), 'error',
                    __('An error occurred while connecting to the chat server.')
                );
            } else if (status === Strophe.Status.CONNECTING) {
                _converse.giveFeedback(__('Connecting'));
            } else if (status === Strophe.Status.AUTHENTICATING) {
                _converse.giveFeedback(__('Authenticating'));
            } else if (status === Strophe.Status.AUTHFAIL) {
                _converse.giveFeedback(__('Authentication Failed'), 'error');
                _converse.setDisconnectionCause(status, condition, true);
                _converse.onDisconnected();
            } else if (status === Strophe.Status.CONNFAIL) {
                _converse.giveFeedback(
                    __('Connection failed'), 'error',
                    __('An error occurred while connecting to the chat server: '+condition)
                );
                _converse.setDisconnectionCause(status, condition);
            } else if (status === Strophe.Status.DISCONNECTING) {
                _converse.setDisconnectionCause(status, condition);
            }
        };

        this.updateMsgCounter = function () {
            if (this.msg_counter > 0) {
                if (document.title.search(/^Messages \(\d+\) /) === -1) {
                    document.title = "Messages (" + this.msg_counter + ") " + document.title;
                } else {
                    document.title = document.title.replace(/^Messages \(\d+\) /, "Messages (" + this.msg_counter + ") ");
                }
            } else if (document.title.search(/^Messages \(\d+\) /) !== -1) {
                document.title = document.title.replace(/^Messages \(\d+\) /, "");
            }
        };

        this.incrementMsgCounter = function () {
            this.msg_counter += 1;
            this.updateMsgCounter();
        };

        this.clearMsgCounter = function () {
            this.msg_counter = 0;
            this.updateMsgCounter();
        };

        this.initStatus = function () {
            var deferred = new $.Deferred();
            this.xmppstatus = new this.XMPPStatus();
            var id = b64_sha1('converse.xmppstatus-'+_converse.bare_jid);
            this.xmppstatus.id = id; // Appears to be necessary for backbone.browserStorage
            this.xmppstatus.browserStorage = new Backbone.BrowserStorage[_converse.storage](id);
            this.xmppstatus.fetch({
                success: deferred.resolve,
                error: deferred.resolve
            });
            _converse.emit('statusInitialized');
            return deferred.promise();
        };

        this.initSession = function () {
            this.session = new this.Session();
            var id = b64_sha1('converse.bosh-session');
            this.session.id = id; // Appears to be necessary for backbone.browserStorage
            this.session.browserStorage = new Backbone.BrowserStorage[_converse.storage](id);
            this.session.fetch();
        };

        this.clearSession = function () {
            if (!_.isUndefined(this.roster)) {
                this.roster.browserStorage._clear();
            }
            this.session.browserStorage._clear();
        };

        this.logOut = function () {
            _converse.setDisconnectionCause(_converse.LOGOUT, undefined, true);
            if (!_.isUndefined(_converse.connection)) {
                _converse.connection.disconnect();
            }
            _converse.chatboxviews.closeAllChatBoxes();
            _converse.clearSession();
            _converse._tearDown();
            _converse.emit('logout');
        };

        this.saveWindowState = function (ev, hidden) {
            // XXX: eventually we should be able to just use
            // document.visibilityState (when we drop support for older
            // browsers).
            var state;
            var v = "visible", h = "hidden",
                event_map = {
                    'focus': v,
                    'focusin': v,
                    'pageshow': v,
                    'blur': h,
                    'focusout': h,
                    'pagehide': h
                };
            ev = ev || document.createEvent('Events');
            if (ev.type in event_map) {
                state = event_map[ev.type];
            } else {
                state = document[hidden] ? "hidden" : "visible";
            }
            if (state  === 'visible') {
                _converse.clearMsgCounter();
            }
            _converse.windowState = state;
        };

        this.registerGlobalEventHandlers = function () {
            // Taken from:
            // http://stackoverflow.com/questions/1060008/is-there-a-way-to-detect-if-a-browser-window-is-not-currently-active
            var hidden = "hidden";
            // Standards:
            if (hidden in document) {
                document.addEventListener("visibilitychange", _.partial(_converse.saveWindowState, _, hidden));
            } else if ((hidden = "mozHidden") in document) {
                document.addEventListener("mozvisibilitychange", _.partial(_converse.saveWindowState, _, hidden));
            } else if ((hidden = "webkitHidden") in document) {
                document.addEventListener("webkitvisibilitychange", _.partial(_converse.saveWindowState, _, hidden));
            } else if ((hidden = "msHidden") in document) {
                document.addEventListener("msvisibilitychange", _.partial(_converse.saveWindowState, _, hidden));
            } else if ("onfocusin" in document) {
                // IE 9 and lower:
                document.onfocusin = document.onfocusout = _.partial(_converse.saveWindowState, _, hidden);
            } else {
                // All others:
                window.onpageshow = window.onpagehide = window.onfocus = window.onblur = _.partial(_converse.saveWindowState, _, hidden);
            }
            // set the initial state (but only if browser supports the Page Visibility API)
            if( document[hidden] !== undefined ) {
                _.partial(_converse.saveWindowState, _, hidden)({type: document[hidden] ? "blur" : "focus"});
            }
        };

        this.enableCarbons = function () {
            /* Ask the XMPP server to enable Message Carbons
             * See XEP-0280 https://xmpp.org/extensions/xep-0280.html#enabling
             */
            if (!this.message_carbons || this.session.get('carbons_enabled')) {
                return;
            }
            var carbons_iq = new Strophe.Builder('iq', {
                from: this.connection.jid,
                id: 'enablecarbons',
                type: 'set'
              })
              .c('enable', {xmlns: Strophe.NS.CARBONS});
            this.connection.addHandler(function (iq) {
                if (iq.querySelectorAll('error').length > 0) {
                    _converse.log('ERROR: An error occured while trying to enable message carbons.');
                } else {
                    this.session.save({carbons_enabled: true});
                    _converse.log('Message carbons have been enabled.');
                }
            }.bind(this), null, "iq", null, "enablecarbons");
            this.connection.send(carbons_iq);
        };

        this.initRoster = function () {
            /* Initialize the Bakcbone collections that represent the contats
             * roster and the roster groups.
             */
            _converse.roster = new _converse.RosterContacts();
            _converse.roster.browserStorage = new Backbone.BrowserStorage.session(
                b64_sha1('converse.contacts-'+_converse.bare_jid));
            _converse.rostergroups = new _converse.RosterGroups();
            _converse.rostergroups.browserStorage = new Backbone.BrowserStorage.session(
                b64_sha1('converse.roster.groups'+_converse.bare_jid));
            _converse.emit('rosterInitialized');
        };

        this.populateRoster = function () {
            /* Fetch all the roster groups, and then the roster contacts.
             * Emit an event after fetching is done in each case.
             */
            _converse.rostergroups.fetchRosterGroups().then(function () {
                _converse.emit('rosterGroupsFetched');
                _converse.roster.fetchRosterContacts().then(function () {
                    _converse.emit('rosterContactsFetched');
                    _converse.sendInitialPresence();
                });
            });
        };

        this.unregisterPresenceHandler = function () {
            if (!_.isUndefined(_converse.presence_ref)) {
                _converse.connection.deleteHandler(_converse.presence_ref);
                delete _converse.presence_ref;
            }
        };

        this.registerPresenceHandler = function () {
            _converse.unregisterPresenceHandler();
            _converse.presence_ref = _converse.connection.addHandler(
                function (presence) {
                    _converse.roster.presenceHandler(presence);
                    return true;
                }, null, 'presence', null);
        };


        this.sendInitialPresence = function () {
            if (_converse.send_initial_presence) {
                _converse.xmppstatus.sendPresence();
            }
        };

        this.onStatusInitialized = function (reconnecting) {
            /* Continue with session establishment (e.g. fetching chat boxes,
             * populating the roster etc.) necessary once the connection has
             * been established.
             */
            if (reconnecting) {
                // No need to recreate the roster, otherwise we lose our
                // cached data. However we still emit an event, to give
                // event handlers a chance to register views for the
                // roster and its groups, before we start populating.
                _converse.emit('rosterReadyAfterReconnection');
            } else {
                _converse.registerIntervalHandler();
                _converse.initRoster();
            }
            // First set up chat boxes, before populating the roster, so that
            // the controlbox is properly set up and ready for the rosterview.
            _converse.chatboxes.onConnected();
            _converse.populateRoster();
            _converse.registerPresenceHandler();
            _converse.giveFeedback(__('Contacts'));
            if (reconnecting) {
                _converse.xmppstatus.sendPresence();
            } else {
                init_deferred.resolve();
                _converse.emit('initialized');
            }
        };

        this.setUserJid = function () {
            _converse.jid = _converse.connection.jid;
            _converse.bare_jid = Strophe.getBareJidFromJid(_converse.connection.jid);
            _converse.resource = Strophe.getResourceFromJid(_converse.connection.jid);
            _converse.domain = Strophe.getDomainFromJid(_converse.connection.jid);
        };

        this.onConnected = function (reconnecting) {
            /* Called as soon as a new connection has been established, either
             * by logging in or by attaching to an existing BOSH session.
             */
            // Solves problem of returned PubSub BOSH response not received
            // by browser.
            _converse.connection.flush();

            _converse.setUserJid();
            _converse.enableCarbons();

            // If there's no xmppstatus obj, then we were never connected to
            // begin with, so we set reconnecting to false.
            reconnecting = _.isUndefined(_converse.xmppstatus) ? false : reconnecting;

            if (reconnecting) {
                _converse.onStatusInitialized(true);
                _converse.emit('reconnected');
            } else {
                // There might be some open chat boxes. We don't
                // know whether these boxes are of the same account or not, so we
                // close them now.
                _converse.chatboxviews.closeAllChatBoxes();
                _converse.features = new _converse.Features();
                _converse.initStatus().done(_.partial(_converse.onStatusInitialized, false));
                _converse.emit('connected');
            }
        };

        this.RosterContact = Backbone.Model.extend({

            initialize: function (attributes) {
                var jid = attributes.jid;
                var bare_jid = Strophe.getBareJidFromJid(jid).toLowerCase();
                var resource = Strophe.getResourceFromJid(jid);
                attributes.jid = bare_jid;
                this.set(_.assignIn({
                    'id': bare_jid,
                    'jid': bare_jid,
                    'fullname': bare_jid,
                    'chat_status': 'offline',
                    'user_id': Strophe.getNodeFromJid(jid),
                    'resources': resource ? {'resource':0} : {},
                    'groups': [],
                    'image_type': DEFAULT_IMAGE_TYPE,
                    'image': DEFAULT_IMAGE,
                    'status': ''
                }, attributes));

                this.on('destroy', function () { this.removeFromRoster(); }.bind(this));
                this.on('change:chat_status', function (item) {
                    _converse.emit('contactStatusChanged', item.attributes);
                });
            },

            subscribe: function (message) {
                /* Send a presence subscription request to this roster contact
                 *
                 * Parameters:
                 *    (String) message - An optional message to explain the
                 *      reason for the subscription request.
                 */
                this.save('ask', "subscribe"); // ask === 'subscribe' Means we have ask to subscribe to them.
                var pres = $pres({to: this.get('jid'), type: "subscribe"});
                if (message && message !== "") {
                    pres.c("status").t(message).up();
                }
                var nick = _converse.xmppstatus.get('fullname');
                if (nick && nick !== "") {
                    pres.c('nick', {'xmlns': Strophe.NS.NICK}).t(nick).up();
                }
                _converse.connection.send(pres);
                return this;
            },

            ackSubscribe: function () {
                /* Upon receiving the presence stanza of type "subscribed",
                 * the user SHOULD acknowledge receipt of that subscription
                 * state notification by sending a presence stanza of type
                 * "subscribe" to the contact
                 */
                _converse.connection.send($pres({
                    'type': 'subscribe',
                    'to': this.get('jid')
                }));
            },

            ackUnsubscribe: function () {
                /* Upon receiving the presence stanza of type "unsubscribed",
                 * the user SHOULD acknowledge receipt of that subscription state
                 * notification by sending a presence stanza of type "unsubscribe"
                 * this step lets the user's server know that it MUST no longer
                 * send notification of the subscription state change to the user.
                 *  Parameters:
                 *    (String) jid - The Jabber ID of the user who is unsubscribing
                 */
                _converse.connection.send($pres({'type': 'unsubscribe', 'to': this.get('jid')}));
                this.destroy(); // Will cause removeFromRoster to be called.
            },

            unauthorize: function (message) {
                /* Unauthorize this contact's presence subscription
                 * Parameters:
                 *   (String) message - Optional message to send to the person being unauthorized
                 */
                _converse.rejectPresenceSubscription(this.get('jid'), message);
                return this;
            },

            authorize: function (message) {
                /* Authorize presence subscription
                 * Parameters:
                 *   (String) message - Optional message to send to the person being authorized
                 */
                var pres = $pres({to: this.get('jid'), type: "subscribed"});
                if (message && message !== "") {
                    pres.c("status").t(message);
                }
                _converse.connection.send(pres);
                return this;
            },

            addResource: function (presence) {
                /* Adds a new resource and it's associated attributes as taken
                 * from the passed in presence stanza.
                 *
                 * Also updates the contact's chat_status if the presence has
                 * higher priority (and is newer).
                 */
                var jid = presence.getAttribute('from'),
                    chat_status = _.propertyOf(presence.querySelector('show'))('textContent') || 'online',
                    resource = Strophe.getResourceFromJid(jid),
                    priority = _.propertyOf(presence.querySelector('priority'))('textContent') || 0,
                    delay = presence.querySelector('delay[xmlns="'+Strophe.NS.DELAY+'"]'),
                    timestamp = _.isNull(delay) ? moment().format() : moment(delay.getAttribute('stamp')).format();

                priority = _.isNaN(parseInt(priority, 10)) ? 0 : parseInt(priority, 10);

                var resources = _.isObject(this.get('resources')) ? this.get('resources') : {};
                resources[resource] = {
                    'priority': priority,
                    'status': chat_status,
                    'timestamp': timestamp
                };
                var changed = {'resources': resources};
                var hpr = this.getHighestPriorityResource();
                if (priority == hpr.priority && timestamp == hpr.timestamp) {
                    // Only set the chat status if this is the newest resource
                    // with the highest priority
                    changed.chat_status = chat_status;
                }
                this.save(changed);
                return resources;
            },

            removeResource: function (resource) {
                /* Remove the passed in resource from the contact's resources map.
                 *
                 * Also recomputes the chat_status given that there's one less
                 * resource.
                 */
                var resources = this.get('resources');
                if (!_.isObject(resources)) {
                    resources = {};
                } else {
                    delete resources[resource];
                }
                this.save({
                    'resources': resources,
                    'chat_status': _.propertyOf(
                        this.getHighestPriorityResource())('status') || 'offline'
                });
            },

            getHighestPriorityResource: function () {
                /* Return the resource with the highest priority.
                 *
                 * If multiple resources have the same priority, take the
                 * newest one.
                 */
                var resources = this.get('resources');
                if (_.isObject(resources) && _.size(resources)) {
                    var val = _.flow(
                            _.values,
                            _.partial(_.sortBy, _, ['priority', 'timestamp']),
                            _.reverse
                        )(resources)[0];
                    if (!_.isUndefined(val)) {
                        return val;
                    }
                }
            },

            removeFromRoster: function (callback) {
                /* Instruct the XMPP server to remove this contact from our roster
                 * Parameters:
                 *   (Function) callback
                 */
                var iq = $iq({type: 'set'})
                    .c('query', {xmlns: Strophe.NS.ROSTER})
                    .c('item', {jid: this.get('jid'), subscription: "remove"});
                _converse.connection.sendIQ(iq, callback, callback);
                return this;
            }
        });


        this.RosterContacts = Backbone.Collection.extend({
            model: _converse.RosterContact,

            comparator: function (contact1, contact2) {
                var name1, name2;
                var status1 = contact1.get('chat_status') || 'offline';
                var status2 = contact2.get('chat_status') || 'offline';
                if (_converse.STATUS_WEIGHTS[status1] === _converse.STATUS_WEIGHTS[status2]) {
                    name1 = contact1.get('fullname').toLowerCase();
                    name2 = contact2.get('fullname').toLowerCase();
                    return name1 < name2 ? -1 : (name1 > name2? 1 : 0);
                } else  {
                    return _converse.STATUS_WEIGHTS[status1] < _converse.STATUS_WEIGHTS[status2] ? -1 : 1;
                }
            },

            fetchRosterContacts: function () {
                /* Fetches the roster contacts, first by trying the
                 * sessionStorage cache, and if that's empty, then by querying
                 * the XMPP server.
                 *
                 * Returns a promise which resolves once the contacts have been
                 * fetched.
                 */
                var deferred = new $.Deferred();
                this.fetch({
                    add: true,
                    success: function (collection) {
                        if (collection.length === 0) {
                            /* We don't have any roster contacts stored in sessionStorage,
                             * so lets fetch the roster from the XMPP server. We pass in
                             * 'sendPresence' as callback method, because after initially
                             * fetching the roster we are ready to receive presence
                             * updates from our contacts.
                             */
                            _converse.send_initial_presence = true;
                            _converse.roster.fetchFromServer(deferred.resolve);
                        } else {
                            _converse.emit('cachedRoster', collection);
                            deferred.resolve();
                        }
                    }
                });
                return deferred.promise();
            },

            subscribeToSuggestedItems: function (msg) {
                _.each(msg.querySelectorAll('item'), function (item) {
                    if (item.getAttribute('action') === 'add') {
                        _converse.roster.addAndSubscribe(
                            item.getAttribute('jid'),
                            null,
                            _converse.xmppstatus.get('fullname')
                        );
                    }
                });
                return true;
            },

            isSelf: function (jid) {
                return (Strophe.getBareJidFromJid(jid) === Strophe.getBareJidFromJid(_converse.connection.jid));
            },

            addAndSubscribe: function (jid, name, groups, message, attributes) {
                /* Add a roster contact and then once we have confirmation from
                 * the XMPP server we subscribe to that contact's presence updates.
                 *  Parameters:
                 *    (String) jid - The Jabber ID of the user being added and subscribed to.
                 *    (String) name - The name of that user
                 *    (Array of Strings) groups - Any roster groups the user might belong to
                 *    (String) message - An optional message to explain the
                 *      reason for the subscription request.
                 *    (Object) attributes - Any additional attributes to be stored on the user's model.
                 */
                this.addContact(jid, name, groups, attributes).done(function (contact) {
                    if (contact instanceof _converse.RosterContact) {
                        contact.subscribe(message);
                    }
                });
            },

            sendContactAddIQ: function (jid, name, groups, callback, errback) {
                /*  Send an IQ stanza to the XMPP server to add a new roster contact.
                 *
                 *  Parameters:
                 *    (String) jid - The Jabber ID of the user being added
                 *    (String) name - The name of that user
                 *    (Array of Strings) groups - Any roster groups the user might belong to
                 *    (Function) callback - A function to call once the IQ is returned
                 *    (Function) errback - A function to call if an error occured
                 */
                name = _.isEmpty(name)? jid: name;
                var iq = $iq({type: 'set'})
                    .c('query', {xmlns: Strophe.NS.ROSTER})
                    .c('item', { jid: jid, name: name });
                _.each(groups, function (group) { iq.c('group').t(group).up(); });
                _converse.connection.sendIQ(iq, callback, errback);
            },

            addContact: function (jid, name, groups, attributes) {
                /* Adds a RosterContact instance to _converse.roster and
                 * registers the contact on the XMPP server.
                 * Returns a promise which is resolved once the XMPP server has
                 * responded.
                 *
                 *  Parameters:
                 *    (String) jid - The Jabber ID of the user being added and subscribed to.
                 *    (String) name - The name of that user
                 *    (Array of Strings) groups - Any roster groups the user might belong to
                 *    (Object) attributes - Any additional attributes to be stored on the user's model.
                 */
                var deferred = new $.Deferred();
                groups = groups || [];
                name = _.isEmpty(name)? jid: name;
                this.sendContactAddIQ(jid, name, groups,
                    function () {
                        var contact = this.create(_.assignIn({
                            ask: undefined,
                            fullname: name,
                            groups: groups,
                            jid: jid,
                            requesting: false,
                            subscription: 'none'
                        }, attributes), {sort: false});
                        deferred.resolve(contact);
                    }.bind(this),
                    function (err) {
                        alert(__("Sorry, there was an error while trying to add "+name+" as a contact."));
                        _converse.log(err);
                        deferred.resolve(err);
                    }
                );
                return deferred.promise();
            },

            subscribeBack: function (bare_jid) {
                var contact = this.get(bare_jid);
                if (contact instanceof _converse.RosterContact) {
                    contact.authorize().subscribe();
                } else {
                    // Can happen when a subscription is retried or roster was deleted
                    this.addContact(bare_jid, '', [], { 'subscription': 'from' }).done(function (contact) {
                        if (contact instanceof _converse.RosterContact) {
                            contact.authorize().subscribe();
                        }
                    });
                }
            },

            getNumOnlineContacts: function () {
                var count = 0,
                    ignored = ['offline', 'unavailable'],
                    models = this.models,
                    models_length = models.length,
                    i;
                if (_converse.show_only_online_users) {
                    ignored = _.union(ignored, ['dnd', 'xa', 'away']);
                }
                for (i=0; i<models_length; i++) {
                    if (!_.includes(ignored, models[i].get('chat_status'))) {
                        count++;
                    }
                }
                return count;
            },

            onRosterPush: function (iq) {
                /* Handle roster updates from the XMPP server.
                 * See: https://xmpp.org/rfcs/rfc6121.html#roster-syntax-actions-push
                 *
                 * Parameters:
                 *    (XMLElement) IQ - The IQ stanza received from the XMPP server.
                 */
                var id = iq.getAttribute('id');
                var from = iq.getAttribute('from');
                if (from && from !== "" && Strophe.getBareJidFromJid(from) !== _converse.bare_jid) {
                    // Receiving client MUST ignore stanza unless it has no from or from = user's bare JID.
                    // XXX: Some naughty servers apparently send from a full
                    // JID so we need to explicitly compare bare jids here.
                    // https://github.com/jcbrand/converse.js/issues/493
                    _converse.connection.send(
                        $iq({type: 'error', id: id, from: _converse.connection.jid})
                            .c('error', {'type': 'cancel'})
                            .c('service-unavailable', {'xmlns': Strophe.NS.ROSTER })
                    );
                    return true;
                }
                _converse.connection.send($iq({type: 'result', id: id, from: _converse.connection.jid}));
                // var items = iq.querySelectorAll('query[xmlns="'+Strophe.NS.ROSTER+'"] item');
                var items = sizzle('query[xmlns="'+Strophe.NS.ROSTER+'"] item', iq);
                _.each(items, this.updateContact.bind(this));
                _converse.emit('rosterPush', iq);
                return true;
            },

            fetchFromServer: function (callback) {
                /* Get the roster from the XMPP server */
                var iq = $iq({type: 'get', 'id': _converse.connection.getUniqueId('roster')})
                        .c('query', {xmlns: Strophe.NS.ROSTER});
                var that = this;
                return _converse.connection.sendIQ(iq, function () {
                    that.onReceivedFromServer.apply(that, arguments);
                    callback.apply(that, arguments);
                });
            },

            onReceivedFromServer: function (iq) {
                /* An IQ stanza containing the roster has been received from
                 * the XMPP server.
                 */
                // var items = iq.querySelectorAll('query[xmlns="'+Strophe.NS.ROSTER+'"] item');
                var items = sizzle('query[xmlns="'+Strophe.NS.ROSTER+'"] item', iq);
                _.each(items, this.updateContact.bind(this));
                _converse.emit('roster', iq);
            },

            updateContact: function (item) {
                /* Update or create RosterContact models based on items
                 * received in the IQ from the server.
                 */
                var jid = item.getAttribute('jid');
                if (this.isSelf(jid)) { return; }
                var groups = _.map(item.getElementsByTagName('group'), Strophe.getText),
                    contact = this.get(jid),
                    ask = item.getAttribute("ask"),
                    subscription = item.getAttribute("subscription");
                if (!contact) {
                    if ((subscription === "none" && ask === null) || (subscription === "remove")) {
                        return; // We're lazy when adding contacts.
                    }
                    this.create({
                        ask: ask,
                        fullname: item.getAttribute("name") || jid,
                        groups: groups,
                        jid: jid,
                        subscription: subscription
                    }, {sort: false});
                } else {
                    if (subscription === "remove") {
                        return contact.destroy(); // will trigger removeFromRoster
                    }
                    // We only find out about requesting contacts via the
                    // presence handler, so if we receive a contact
                    // here, we know they aren't requesting anymore.
                    // see docs/DEVELOPER.rst
                    contact.save({
                        subscription: subscription,
                        ask: ask,
                        requesting: null,
                        groups: groups
                    });
                }
            },

            createRequestingContact: function (presence) {
                /* Creates a Requesting Contact.
                 *
                 * Note: this method gets completely overridden by converse-vcard.js
                 */
                var bare_jid = Strophe.getBareJidFromJid(presence.getAttribute('from'));
                var nick_el = presence.querySelector('nick[xmlns="'+Strophe.NS.NICK+'"]');
                var user_data = {
                    jid: bare_jid,
                    subscription: 'none',
                    ask: null,
                    requesting: true,
                    fullname: nick_el && nick_el.textContent || bare_jid,
                };
                this.create(user_data);
                _converse.emit('contactRequest', user_data);
            },

            handleIncomingSubscription: function (presence) {
                var jid = presence.getAttribute('from');
                var bare_jid = Strophe.getBareJidFromJid(jid);
                var contact = this.get(bare_jid);
                if (!_converse.allow_contact_requests) {
                    _converse.rejectPresenceSubscription(
                        jid,
                        __("This client does not allow presence subscriptions")
                    );
                }
                if (_converse.auto_subscribe) {
                    if ((!contact) || (contact.get('subscription') !== 'to')) {
                        this.subscribeBack(bare_jid);
                    } else {
                        contact.authorize();
                    }
                } else {
                    if (contact) {
                        if (contact.get('subscription') !== 'none')  {
                            contact.authorize();
                        } else if (contact.get('ask') === "subscribe") {
                            contact.authorize();
                        }
                    } else if (!contact) {
                        this.createRequestingContact(presence);
                    }
                }
            },

            presenceHandler: function (presence) {
                var presence_type = presence.getAttribute('type');
                if (presence_type === 'error') { return true; }
                var jid = presence.getAttribute('from'),
                    bare_jid = Strophe.getBareJidFromJid(jid),
                    resource = Strophe.getResourceFromJid(jid),
                    chat_status = _.propertyOf(presence.querySelector('show'))('textContent') || 'online',
                    status_message = _.propertyOf(presence.querySelector('status'))('textContent'),
                    contact = this.get(bare_jid);

                if (this.isSelf(bare_jid)) {
                    if ((_converse.connection.jid !== jid) &&
                        (presence_type !== 'unavailable') &&
                        (_converse.synchronize_availability === true ||
                         _converse.synchronize_availability === resource)) {
                        // Another resource has changed its status and
                        // synchronize_availability option set to update,
                        // we'll update ours as well.
                        _converse.xmppstatus.save({'status': chat_status});
                        if (status_message) {
                            _converse.xmppstatus.save({'status_message': status_message});
                        }
                    }
                    return;
                } else if (sizzle('query[xmlns="'+Strophe.NS.MUC+'"]', presence).length) {
                    return; // Ignore MUC
                }
                if (contact && (status_message !== contact.get('status'))) {
                    contact.save({'status': status_message});
                }
                if (presence_type === 'subscribed' && contact) {
                    contact.ackSubscribe();
                } else if (presence_type === 'unsubscribed' && contact) {
                    contact.ackUnsubscribe();
                } else if (presence_type === 'unsubscribe') {
                    return;
                } else if (presence_type === 'subscribe') {
                    this.handleIncomingSubscription(presence);
                } else if (presence_type === 'unavailable' && contact) {
                    contact.removeResource(resource);
                } else if (contact) {
                    // presence_type is undefined
                    contact.addResource(presence);
                }
            }
        });


        this.RosterGroup = Backbone.Model.extend({
            initialize: function (attributes) {
                this.set(_.assignIn({
                    description: __('Click to hide these contacts'),
                    state: _converse.OPENED
                }, attributes));
                // Collection of contacts belonging to this group.
                this.contacts = new _converse.RosterContacts();
            }
        });


        this.RosterGroups = Backbone.Collection.extend({
            model: _converse.RosterGroup,

            fetchRosterGroups: function () {
                /* Fetches all the roster groups from sessionStorage.
                 *
                 * Returns a promise which resolves once the groups have been
                 * returned.
                 */
                var deferred = new $.Deferred();
                this.fetch({
                    silent: true, // We need to first have all groups before
                                  // we can start positioning them, so we set
                                  // 'silent' to true.
                    success: deferred.resolve
                });
                return deferred.promise();
            }
        });


        this.Message = Backbone.Model.extend({
            defaults: function(){
                return {
                    msgid: _converse.connection.getUniqueId()
                };
            }
        });


        this.Messages = Backbone.Collection.extend({
            model: _converse.Message,
            comparator: 'time'
        });


        this.ChatBox = Backbone.Model.extend({

            initialize: function () {
                this.messages = new _converse.Messages();
                this.messages.browserStorage = new Backbone.BrowserStorage[_converse.message_storage](
                    b64_sha1('converse.messages'+this.get('jid')+_converse.bare_jid));
                this.save({
                    // The chat_state will be set to ACTIVE once the chat box is opened
                    // and we listen for change:chat_state, so shouldn't set it to ACTIVE here.
                    'box_id' : b64_sha1(this.get('jid')),
                    'chat_state': undefined,
                    'num_unread': this.get('num_unread') || 0,
                    'time_opened': this.get('time_opened') || moment().valueOf(),
                    'url': '',
                    'user_id' : Strophe.getNodeFromJid(this.get('jid'))
                });
            },

            getMessageAttributes: function (message, delay, original_stanza) {
                delay = delay || message.querySelector('delay');
                var type = message.getAttribute('type'),
                    body, stamp, time, sender, from, fullname;

                if (type === 'error') {
                    body = _.propertyOf(message.querySelector('error text'))('textContent');
                } else {
                    body = _.propertyOf(message.querySelector('body'))('textContent');
                }
                var delayed = !_.isNull(delay),
                    is_groupchat = type === 'groupchat',
                    chat_state = message.getElementsByTagName(_converse.COMPOSING).length && _converse.COMPOSING ||
                        message.getElementsByTagName(_converse.PAUSED).length && _converse.PAUSED ||
                        message.getElementsByTagName(_converse.INACTIVE).length && _converse.INACTIVE ||
                        message.getElementsByTagName(_converse.ACTIVE).length && _converse.ACTIVE ||
                        message.getElementsByTagName(_converse.GONE).length && _converse.GONE;

                if (is_groupchat) {
                    from = Strophe.unescapeNode(Strophe.getResourceFromJid(message.getAttribute('from')));
                } else {
                    from = Strophe.getBareJidFromJid(message.getAttribute('from'));
                }
                if (delayed) {
                    stamp = delay.getAttribute('stamp');
                    time = stamp;
                } else {
                    time = moment().format();
                }
                if ((is_groupchat && from === this.get('nick')) || (!is_groupchat && from === _converse.bare_jid)) {
                    sender = 'me';
                    fullname = _converse.xmppstatus.get('fullname') || from;
                } else {
                    sender = 'them';
                    fullname = this.get('fullname') || from;
                }
                return {
                    'type': type,
                    'chat_state': chat_state,
                    'delayed': delayed,
                    'fullname': fullname,
                    'message': body || undefined,
                    'msgid': message.getAttribute('id'),
                    'sender': sender,
                    'time': time
                };
            },

            createMessage: function (message, delay, original_stanza) {
                return this.messages.create(this.getMessageAttributes.apply(this, arguments));
            }
        });

        this.ChatBoxes = Backbone.Collection.extend({
            model: _converse.ChatBox,
            comparator: 'time_opened',

            registerMessageHandler: function () {
                _converse.connection.addHandler(this.onMessage.bind(this), null, 'message', 'chat');
                _converse.connection.addHandler(this.onErrorMessage.bind(this), null, 'message', 'error');
            },

            chatBoxMayBeShown: function (chatbox) {
                return true;
            },

            onChatBoxesFetched: function (collection) {
                /* Show chat boxes upon receiving them from sessionStorage
                 *
                 * This method gets overridden entirely in src/converse-controlbox.js
                 * if the controlbox plugin is active.
                 */
                var that = this;
                collection.each(function (chatbox) {
                    if (that.chatBoxMayBeShown(chatbox)) {
                        chatbox.trigger('show');
                    }
                });
                _converse.emit('chatBoxesFetched');
            },

            onConnected: function () {
                this.browserStorage = new Backbone.BrowserStorage[_converse.storage](
                    b64_sha1('converse.chatboxes-'+_converse.bare_jid));
                this.registerMessageHandler();
                this.fetch({
                    add: true,
                    success: this.onChatBoxesFetched.bind(this)
                });
            },

            onErrorMessage: function (message) {
                /* Handler method for all incoming error message stanzas
                 */
                // TODO: we can likely just reuse "onMessage" below
                var from_jid =  Strophe.getBareJidFromJid(message.getAttribute('from'));
                if (from_jid === _converse.bare_jid) {
                    return true;
                }
                // Get chat box, but only create a new one when the message has a body.
                var chatbox = this.getChatBox(from_jid);
                if (!chatbox) {
                    return true;
                }
                chatbox.createMessage(message, null, message);
                return true;
            },

            onMessage: function (message) {
                /* Handler method for all incoming single-user chat "message"
                 * stanzas.
                 */
                var original_stanza = message,
                    contact_jid, forwarded, delay, from_bare_jid,
                    from_resource, is_me, msgid,
                    chatbox, resource,
                    from_jid = message.getAttribute('from'),
                    to_jid = message.getAttribute('to'),
                    to_resource = Strophe.getResourceFromJid(to_jid),
                    is_carbon = !_.isNull(message.querySelector('received[xmlns="'+Strophe.NS.CARBONS+'"]'));

                if (_converse.filter_by_resource && (to_resource && to_resource !== _converse.resource)) {
                    _converse.log(
                        'onMessage: Ignoring incoming message intended for a different resource: '+to_jid,
                        'info'
                    );
                    return true;
                } else if (utils.isHeadlineMessage(message)) {
                    // XXX: Ideally we wouldn't have to check for headline
                    // messages, but Prosody sends headline messages with the
                    // wrong type ('chat'), so we need to filter them out here.
                    _converse.log(
                        "onMessage: Ignoring incoming headline message sent with type 'chat' from JID: "+from_jid,
                        'info'
                    );
                    return true;
                }
                forwarded = message.querySelector('forwarded');
                if (!_.isNull(forwarded)) {
                    var forwarded_message = forwarded.querySelector('message');
                    var forwarded_from = forwarded_message.getAttribute('from');
                    if (is_carbon && Strophe.getBareJidFromJid(forwarded_from) !== from_jid) {
                        // Prevent message forging via carbons
                        //
                        // https://xmpp.org/extensions/xep-0280.html#security
                        return true;
                    }
                    message = forwarded_message;
                    delay = forwarded.querySelector('delay');
                    from_jid = message.getAttribute('from');
                    to_jid = message.getAttribute('to');
                }
                from_bare_jid = Strophe.getBareJidFromJid(from_jid);
                from_resource = Strophe.getResourceFromJid(from_jid);
                is_me = from_bare_jid === _converse.bare_jid;
                msgid = message.getAttribute('id');
                if (is_me) {
                    // I am the sender, so this must be a forwarded message...
                    contact_jid = Strophe.getBareJidFromJid(to_jid);
                    resource = Strophe.getResourceFromJid(to_jid);
                } else {
                    contact_jid = from_bare_jid;
                    resource = from_resource;
                }
                _converse.emit('message', original_stanza);
                // Get chat box, but only create a new one when the message has a body.
                chatbox = this.getChatBox(contact_jid, !_.isNull(message.querySelector('body')));
                if (!chatbox) {
                    return true;
                }
                if (msgid && chatbox.messages.findWhere({msgid: msgid})) {
                    return true; // We already have this message stored.
                }
                chatbox.createMessage(message, delay, original_stanza);
                return true;
            },

            getChatBox: function (jid, create, attrs) {
                /* Returns a chat box or optionally return a newly
                 * created one if one doesn't exist.
                 *
                 * Parameters:
                 *    (String) jid - The JID of the user whose chat box we want
                 *    (Boolean) create - Should a new chat box be created if none exists?
                 *    (Object) attrs - Optional chat box atributes.
                 */
                jid = jid.toLowerCase();
                var bare_jid = Strophe.getBareJidFromJid(jid);
                var chatbox = this.get(bare_jid);
                if (!chatbox && create) {
                    var roster_info = {};
                    var roster_item = _converse.roster.get(bare_jid);
                    if (! _.isUndefined(roster_item)) {
                        roster_info = {
                            'fullname': _.isEmpty(roster_item.get('fullname'))? jid: roster_item.get('fullname'),
                            'image_type': roster_item.get('image_type'),
                            'image': roster_item.get('image'),
                            'url': roster_item.get('url'),
                        };
                    } else if (!_converse.allow_non_roster_messaging) {
                        _converse.log('Could not get roster item for JID '+bare_jid+
                                    ' and allow_non_roster_messaging is set to false', 'error');
                        return;
                    }
                    chatbox = this.create(_.assignIn({
                        'id': bare_jid,
                        'jid': bare_jid,
                        'fullname': jid,
                        'image_type': DEFAULT_IMAGE_TYPE,
                        'image': DEFAULT_IMAGE,
                        'url': '',
                    }, roster_info, attrs || {}));
                }
                return chatbox;
            }
        });

        this.ChatBoxViews = Backbone.Overview.extend({

            initialize: function () {
                this.model.on("add", this.onChatBoxAdded, this);
                this.model.on("destroy", this.removeChat, this);
            },

            _ensureElement: function () {
                /* Override method from backbone.js
                 * If the #conversejs element doesn't exist, create it.
                 */
                if (!this.el) {
                    var el = document.querySelector('#conversejs');
                    if (_.isNull(el)) {
                        el = document.createElement('div');
                        el.setAttribute('id', 'conversejs');
                        // Converse.js expects a <body> tag to be present.
                        document.querySelector('body').appendChild(el);
                    }
                    el.innerHTML = '';
                    this.setElement(el, false);
                } else {
                    this.setElement(_.result(this, 'el'), false);
                }
            },

            onChatBoxAdded: function (item) {
                // Views aren't created here, since the core code doesn't
                // contain any views. Instead, they're created in overrides in
                // plugins, such as in converse-chatview.js and converse-muc.js
                return this.get(item.get('id'));
            },

            removeChat: function (item) {
                this.remove(item.get('id'));
            },

            closeAllChatBoxes: function () {
                /* This method gets overridden in src/converse-controlbox.js if
                 * the controlbox plugin is active.
                 */
                this.each(function (view) { view.close(); });
                return this;
            },

            chatBoxMayBeShown: function (chatbox) {
                return this.model.chatBoxMayBeShown(chatbox);
            },

            getChatBox: function (attrs, create) {
                var chatbox  = this.model.get(attrs.jid);
                if (!chatbox && create) {
                    chatbox = this.model.create(attrs, {
                        'error': function (model, response) {
                            _converse.log(response.responseText);
                        }
                    });
                }
                return chatbox;
            },

            showChat: function (attrs) {
                /* Find the chat box and show it (if it may be shown).
                 * If it doesn't exist, create it.
                 */
                var chatbox = this.getChatBox(attrs, true);
                if (this.chatBoxMayBeShown(chatbox)) {
                    chatbox.trigger('show', true);
                }
                return chatbox;
            }
        });


        this.XMPPStatus = Backbone.Model.extend({
            initialize: function () {
                this.set({
                    'status' : this.getStatus()
                });
                this.on('change', function (item) {
                    if (_.has(item.changed, 'status')) {
                        _converse.emit('statusChanged', this.get('status'));
                    }
                    if (_.has(item.changed, 'status_message')) {
                        _converse.emit('statusMessageChanged', this.get('status_message'));
                    }
                }.bind(this));
            },

            constructPresence: function (type, status_message) {
                var presence;
                type = _.isString(type) ? type : (this.get('status') || _converse.default_state);
                status_message = _.isString(status_message) ? status_message : undefined;
                // Most of these presence types are actually not explicitly sent,
                // but I add all of them here for reference and future proofing.
                if ((type === 'unavailable') ||
                        (type === 'probe') ||
                        (type === 'error') ||
                        (type === 'unsubscribe') ||
                        (type === 'unsubscribed') ||
                        (type === 'subscribe') ||
                        (type === 'subscribed')) {
                    presence = $pres({'type': type});
                } else if (type === 'offline') {
                    presence = $pres({'type': 'unavailable'});
                } else if (type === 'online') {
                    presence = $pres();
                } else {
                    presence = $pres().c('show').t(type).up();
                }
                if (status_message) {
                    presence.c('status').t(status_message).up();
                }
                presence.c('priority').t(
                    _.isNaN(Number(_converse.priority)) ? 0 : _converse.priority
                );
                return presence;
            },

            sendPresence: function (type, status_message) {
                _converse.connection.send(this.constructPresence(type, status_message));
            },

            setStatus: function (value) {
                this.sendPresence(value);
                this.save({'status': value});
            },

            getStatus: function () {
                return this.get('status') || _converse.default_state;
            },

            setStatusMessage: function (status_message) {
                this.sendPresence(this.getStatus(), status_message);
                var prev_status = this.get('status_message');
                this.save({'status_message': status_message});
                if (this.xhr_custom_status) {
                    var xhr = new XMLHttpRequest();
                    xhr.open('POST', this.xhr_custom_status_url, true);
                    xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded; charset=UTF-8');
                    xhr.send({'msg': status_message});
                }
                if (prev_status === status_message) {
                    this.trigger("update-status-ui", this);
                }
            }
        });

        this.Session = Backbone.Model; // General session settings to be saved to sessionStorage.
        this.Feature = Backbone.Model;
        this.Features = Backbone.Collection.extend({
            /* Service Discovery
             * -----------------
             * This collection stores Feature Models, representing features
             * provided by available XMPP entities (e.g. servers)
             * See XEP-0030 for more details: http://xmpp.org/extensions/xep-0030.html
             * All features are shown here: http://xmpp.org/registrar/disco-features.html
             */
            model: _converse.Feature,
            initialize: function () {
                this.addClientIdentities().addClientFeatures();
                this.browserStorage = new Backbone.BrowserStorage[_converse.storage](
                    b64_sha1('converse.features'+_converse.bare_jid)
                );
                this.on('add', this.onFeatureAdded, this);
                if (this.browserStorage.records.length === 0) {
                    // browserStorage is empty, so we've likely never queried this
                    // domain for features yet
                    _converse.connection.disco.info(_converse.domain, null, this.onInfo.bind(this));
                    _converse.connection.disco.items(_converse.domain, null, this.onItems.bind(this));
                } else {
                    this.fetch({add:true});
                }
            },

            onFeatureAdded: function (feature) {
                _converse.emit('serviceDiscovered', feature);
            },

            addClientIdentities: function () {
                /* See http://xmpp.org/registrar/disco-categories.html
                 */
                 _converse.connection.disco.addIdentity('client', 'web', 'Converse.js');
                 return this;
            },

            addClientFeatures: function () {
                /* The strophe.disco.js plugin keeps a list of features which
                 * it will advertise to any #info queries made to it.
                 *
                 * See: http://xmpp.org/extensions/xep-0030.html#info
                 */
                _converse.connection.disco.addFeature(Strophe.NS.BOSH);
                _converse.connection.disco.addFeature(Strophe.NS.CHATSTATES);
                _converse.connection.disco.addFeature(Strophe.NS.DISCO_INFO);
                _converse.connection.disco.addFeature(Strophe.NS.ROSTERX); // Limited support
                if (_converse.message_carbons) {
                    _converse.connection.disco.addFeature(Strophe.NS.CARBONS);
                }
                return this;
            },

            onItems: function (stanza) {
                var that = this;
                _.each(stanza.querySelectorAll('query item'), function (item) {
                    _converse.connection.disco.info(
                        item.getAttribute('jid'),
                        null,
                        that.onInfo.bind(that));
                });
            },

            onInfo: function (stanza) {
                if ((sizzle('identity[category=server][type=im]', stanza).length === 0) &&
                    (sizzle('identity[category=conference][type=text]', stanza).length === 0)) {
                    // This isn't an IM server component
                    return;
                }
                var that = this;
                _.forEach(stanza.querySelectorAll('feature'), function (feature) {
                    var namespace = feature.getAttribute('var');
                    that[namespace] = true;
                    that.create({
                        'var': namespace,
                        'from': stanza.getAttribute('from')
                    });
                });
            }
        });

        this.setUpXMLLogging = function () {
            Strophe.log = function (level, msg) {
                _converse.log(msg, level);
            };
            if (this.debug) {
                this.connection.xmlInput = function (body) { _converse.log(body.outerHTML); };
                this.connection.xmlOutput = function (body) { _converse.log(body.outerHTML); };
            }
        };

        this.fetchLoginCredentials = function () {
            var deferred = new $.Deferred();
            var xhr = new XMLHttpRequest();
            xhr.open('GET', _converse.credentials_url, true);
            xhr.setRequestHeader('Accept', "application/json, text/javascript");
            xhr.onload = function() {
                if (xhr.status >= 200 && xhr.status < 400) {
                    var data = JSON.parse(xhr.responseText);
                    deferred.resolve({
                        'jid': data.jid,
                        'password': data.password
                    });
                } else {
                    xhr.onerror();
                }
            };
            xhr.onerror = function () {
                delete _converse.connection;
                _converse.emit('noResumeableSession');
                deferred.reject(xhr.responseText);
            };
            xhr.send();
            return deferred.promise();
        };

        this.startNewBOSHSession = function () {
            var xhr = new XMLHttpRequest();
            xhr.open('GET', _converse.prebind_url, true);
            xhr.setRequestHeader('Accept', "application/json, text/javascript");
            xhr.onload = function() {
                if (xhr.status >= 200 && xhr.status < 400) {
                    var data = JSON.parse(xhr.responseText);
                    _converse.connection.attach(
                            data.jid, data.sid, data.rid,
                            _converse.onConnectStatusChanged);
                } else {
                    xhr.onerror();
                }
            };
            xhr.onerror = function () {
                delete _converse.connection;
                _converse.emit('noResumeableSession');
            };
            xhr.send();
        };

        this.attemptPreboundSession = function (reconnecting) {
            /* Handle session resumption or initialization when prebind is being used.
             */
            if (!reconnecting && this.keepalive) {
                if (!this.jid) {
                    throw new Error("attemptPreboundSession: when using 'keepalive' with 'prebind, "+
                                    "you must supply the JID of the current user.");
                }
                try {
                    return this.connection.restore(this.jid, this.onConnectStatusChanged);
                } catch (e) {
                    this.log("Could not restore session for jid: "+this.jid+" Error message: "+e.message);
                    this.clearSession(); // If there's a roster, we want to clear it (see #555)
                }
            }

            // No keepalive, or session resumption has failed.
            if (!reconnecting && this.jid && this.sid && this.rid) {
                return this.connection.attach(this.jid, this.sid, this.rid, this.onConnectStatusChanged);
            } else if (this.prebind_url) {
                return this.startNewBOSHSession();
            } else {
                throw new Error("attemptPreboundSession: If you use prebind and not keepalive, "+
                    "then you MUST supply JID, RID and SID values or a prebind_url.");
            }
        };

        this.autoLogin = function (credentials) {
            if (credentials) {
                // If passed in, then they come from credentials_url, so we
                // set them on the _converse object.
                this.jid = credentials.jid;
                this.password = credentials.password;
            }
            if (this.authentication === _converse.ANONYMOUS) {
                if (!this.jid) {
                    throw new Error("Config Error: when using anonymous login " +
                        "you need to provide the server's domain via the 'jid' option. " +
                        "Either when calling converse.initialize, or when calling " +
                        "_converse.api.user.login.");
                }
                this.connection.reset();
                this.connection.connect(this.jid.toLowerCase(), null, this.onConnectStatusChanged);
            } else if (this.authentication === _converse.LOGIN) {
                var password = _converse.connection.pass || this.password;
                if (!password) {
                    if (this.auto_login && !this.password) {
                        throw new Error("initConnection: If you use auto_login and "+
                            "authentication='login' then you also need to provide a password.");
                    }
                    _converse.setDisconnectionCause(Strophe.Status.AUTHFAIL, undefined, true);
                    _converse.disconnect();
                    return;
                }
                var resource = Strophe.getResourceFromJid(this.jid);
                if (!resource) {
                    this.jid = this.jid.toLowerCase() + _converse.generateResource();
                } else {
                    this.jid = Strophe.getBareJidFromJid(this.jid).toLowerCase()+'/'+resource;
                }
                this.connection.reset();
                this.connection.connect(this.jid, password, this.onConnectStatusChanged);
            }
        };

        this.attemptNonPreboundSession = function (credentials, reconnecting) {
            /* Handle session resumption or initialization when prebind is not being used.
             *
             * Two potential options exist and are handled in this method:
             *  1. keepalive
             *  2. auto_login
             */
            if (this.keepalive && !reconnecting) {
                try {
                    return this.connection.restore(this.jid, this.onConnectStatusChanged);
                } catch (e) {
                    this.log("Could not restore session. Error message: "+e.message);
                    this.clearSession(); // If there's a roster, we want to clear it (see #555)
                }
            }
            if (this.auto_login) {
                if (credentials) {
                    // When credentials are passed in, they override prebinding
                    // or credentials fetching via HTTP
                    this.autoLogin(credentials);
                } else if (this.credentials_url) {
                    this.fetchLoginCredentials().done(this.autoLogin.bind(this));
                } else if (!this.jid) {
                    throw new Error(
                        "initConnection: If you use auto_login, you also need"+
                        "to give either a jid value (and if applicable a "+
                        "password) or you need to pass in a URL from where the "+
                        "username and password can be fetched (via credentials_url)."
                    );
                } else {
                    // Probably ANONYMOUS login
                    this.autoLogin();
                }
            } else if (reconnecting) {
                this.autoLogin();
            }
        };

        this.logIn = function (credentials, reconnecting) {
            // We now try to resume or automatically set up a new session.
            // Otherwise the user will be shown a login form.
            if (this.authentication === _converse.PREBIND) {
                this.attemptPreboundSession(reconnecting);
            } else {
                this.attemptNonPreboundSession(credentials, reconnecting);
            }
        };

        this.initConnection = function () {
            if (this.connection) {
                return;
            }
            if (!this.bosh_service_url && ! this.websocket_url) {
                throw new Error("initConnection: you must supply a value for either the bosh_service_url or websocket_url or both.");
            }
            if (('WebSocket' in window || 'MozWebSocket' in window) && this.websocket_url) {
                this.connection = new Strophe.Connection(this.websocket_url, this.connection_options);
            } else if (this.bosh_service_url) {
                this.connection = new Strophe.Connection(
                    this.bosh_service_url,
                    _.assignIn(this.connection_options, {'keepalive': this.keepalive})
                );
            } else {
                throw new Error("initConnection: this browser does not support websockets and bosh_service_url wasn't specified.");
            }
        };

        this._tearDown = function () {
            /* Remove those views which are only allowed with a valid
             * connection.
             */
            this.unregisterPresenceHandler();
            if (this.roster) {
                this.roster.off().reset(); // Removes roster contacts
            }
            this.chatboxes.remove(); // Don't call off(), events won't get re-registered upon reconnect.
            delete this.chatboxes.browserStorage;
            if (this.features) {
                this.features.reset();
            }
            window.removeEventListener('click', _converse.onUserActivity);
            window.removeEventListener('focus', _converse.onUserActivity);
            window.removeEventListener('keypress', _converse.onUserActivity);
            window.removeEventListener('mousemove', _converse.onUserActivity);
            window.removeEventListener(unloadevent, _converse.onUserActivity);
            window.clearInterval(_converse.everySecondTrigger);
            return this;
        };

        this.initChatBoxes = function () {
            this.chatboxes = new this.ChatBoxes();
            this.chatboxviews = new this.ChatBoxViews({model: this.chatboxes});
        };

        var updateSettings = function (settings) {
            /* Helper method which gets put on the plugin and allows it to
             * add more user-facing config settings to converse.js.
             */
            utils.merge(_converse.default_settings, settings);
            utils.merge(_converse, settings);
            utils.applyUserSettings(_converse, settings, _converse.user_settings);
        };

        this.initPlugins = function () {
            // If initialize gets called a second time (e.g. during tests), then we
            // need to re-apply all plugins (for a new converse instance), and we
            // therefore need to clear this array that prevents plugins from being
            // initialized twice.
            // If initialize is called for the first time, then this array is empty
            // in any case.
            _converse.pluggable.initialized_plugins = [];
            var whitelist = _converse.core_plugins.concat(
                _converse.whitelisted_plugins);

            _converse.pluggable.initializePlugins({
                'updateSettings': updateSettings,
                '_converse': _converse
            }, whitelist, _converse.blacklisted_plugins);
            _converse.emit('pluginsInitialized');
        };

        // Initialization
        // --------------
        // This is the end of the initialize method.
        if (settings.connection) {
            this.connection = settings.connection;
        }
        _converse.initPlugins();
        _converse.initChatBoxes();
        _converse.initSession();
        _converse.initConnection();
        _converse.setUpXMLLogging();
        _converse.logIn();
        _converse.registerGlobalEventHandlers();

        if (!_.isUndefined(_converse.connection) &&
            _converse.connection.service === 'jasmine tests') {
            return _converse;
        } else {
            return init_deferred.promise();
        }
    };

    // API methods only available to plugins
    _converse.api = {
        'connection': {
            'connected': function () {
                return _converse.connection && _converse.connection.connected || false;
            },
            'disconnect': function () {
                _converse.connection.disconnect();
            },
        },
        'user': {
            'jid': function () {
                return _converse.connection.jid;
            },
            'login': function (credentials) {
                _converse.initConnection();
                _converse.logIn(credentials);
            },
            'logout': function () {
                _converse.logOut();
            },
            'status': {
                'get': function () {
                    return _converse.xmppstatus.get('status');
                },
                'set': function (value, message) {
                    var data = {'status': value};
                    if (!_.includes(_.keys(_converse.STATUS_WEIGHTS), value)) {
                        throw new Error('Invalid availability value. See https://xmpp.org/rfcs/rfc3921.html#rfc.section.2.2.2.1');
                    }
                    if (_.isString(message)) {
                        data.status_message = message;
                    }
                    _converse.xmppstatus.sendPresence(value);
                    _converse.xmppstatus.save(data);
                },
                'message': {
                    'get': function () {
                        return _converse.xmppstatus.get('status_message');
                    },
                    'set': function (stat) {
                        _converse.xmppstatus.save({'status_message': stat});
                    }
                }
            },
        },
        'settings': {
            'get': function (key) {
                if (_.includes(_.keys(_converse.default_settings), key)) {
                    return _converse[key];
                }
            },
            'set': function (key, val) {
                var o = {};
                if (_.isObject(key)) {
                    _.assignIn(_converse, _.pick(key, _.keys(_converse.default_settings)));
                } else if (_.isString("string")) {
                    o[key] = val;
                    _.assignIn(_converse, _.pick(o, _.keys(_converse.default_settings)));
                }
            }
        },
        'contacts': {
            'get': function (jids) {
                var _transform = function (jid) {
                    var contact = _converse.roster.get(Strophe.getBareJidFromJid(jid));
                    if (contact) {
                        return contact.attributes;
                    }
                    return null;
                };
                if (_.isUndefined(jids)) {
                    jids = _converse.roster.pluck('jid');
                } else if (_.isString(jids)) {
                    return _transform(jids);
                }
                return _.map(jids, _transform);
            },
            'add': function (jid, name) {
                if (!_.isString(jid) || !_.includes(jid, '@')) {
                    throw new TypeError('contacts.add: invalid jid');
                }
                _converse.roster.addAndSubscribe(jid, _.isEmpty(name)? jid: name);
            }
        },
        'chats': {
            'open': function (jids, attrs) {
                var chatbox;
                if (_.isUndefined(jids)) {
                    _converse.log("chats.open: You need to provide at least one JID", "error");
                    return null;
                } else if (_.isString(jids)) {
                    chatbox = _converse.getViewForChatBox(
                        _converse.chatboxes.getChatBox(jids, true, attrs).trigger('show')
                    );
                    return chatbox;
                }
                return _.map(jids, function (jid) {
                    chatbox = _converse.getViewForChatBox(
                        _converse.chatboxes.getChatBox(jid, true, attrs).trigger('show')
                    );
                    return chatbox;
                });
            },
            'get': function (jids) {
                if (_.isUndefined(jids)) {
                    var result = [];
                    _converse.chatboxes.each(function (chatbox) {
                        // FIXME: Leaky abstraction from MUC. We need to add a
                        // base type for chat boxes, and check for that.
                        if (chatbox.get('type') !== 'chatroom') {
                            result.push(_converse.getViewForChatBox(chatbox));
                        }
                    });
                    return result;
                } else if (_.isString(jids)) {
                    return _converse.getViewForChatBox(_converse.chatboxes.getChatBox(jids));
                }
                return _.map(jids,
                    _.partial(
                        _.flow(
                            _converse.chatboxes.getChatBox.bind(_converse.chatboxes),
                            _converse.getViewForChatBox.bind(_converse)
                        ), _, true
                    )
                );
            }
        },
        'tokens': {
            'get': function (id) {
                if (!_converse.expose_rid_and_sid || _.isUndefined(_converse.connection)) {
                    return null;
                }
                if (id.toLowerCase() === 'rid') {
                    return _converse.connection.rid || _converse.connection._proto.rid;
                } else if (id.toLowerCase() === 'sid') {
                    return _converse.connection.sid || _converse.connection._proto.sid;
                }
            }
        },
        'listen': {
            'once': _converse.once.bind(_converse),
            'on': _converse.on.bind(_converse),
            'not': _converse.off.bind(_converse),
            'stanza': function (name, options, handler) {
                if (_.isFunction(options)) {
                    handler = options;
                    options = {};
                } else {
                    options = options || {};
                }
                _converse.connection.addHandler(
                    handler,
                    options.ns,
                    name,
                    options.type,
                    options.id,
                    options.from,
                    options
                );
            },
        },
        'waitUntil': function (name) {
            var promise = _converse.promises[name];
            if (_.isUndefined(promise)) {
                return null;
            }
            return _converse.promises[name].promise();
        },
        'send': function (stanza) {
            _converse.connection.send(stanza);
        },
    };

    // The public API
    return {
        'initialize': function (settings, callback) {
            return _converse.initialize(settings, callback);
        },
        'plugins': {
            'add': function (name, plugin) {
                plugin.__name__ = name;
                if (!_.isUndefined(_converse.pluggable.plugins[name])) {
                    throw new TypeError(
                        'Error: plugin with name "'+name+'" has already been '+
                        'registered!');
                } else {
                    _converse.pluggable.plugins[name] = plugin;
                }
            }
        },
        'env': {
            '$build': $build,
            '$iq': $iq,
            '$msg': $msg,
            '$pres': $pres,
            'Backbone': Backbone,
            'Strophe': Strophe,
            '_': _,
            'b64_sha1':  b64_sha1,
            'jQuery': $,
            'moment': moment,
            'sizzle': sizzle,
            'utils': utils
        }
    };
}));


define('tpl!chatbox', ['lodash'], function(_) {return function(obj) {
obj || (obj = {});
var __t, __p = '', __e = _.escape, __j = Array.prototype.join;
function print() { __p += __j.call(arguments, '') }
with (obj) {
__p += '<div class="flyout box-flyout">\n    <div class="dragresize dragresize-top"></div>\n    <div class="dragresize dragresize-topleft"></div>\n    <div class="dragresize dragresize-left"></div>\n    <div class="chat-head chat-head-chatbox">\n        <a class="chatbox-btn close-chatbox-button icon-close" title="' +
__e(info_close) +
'"></a>\n        <div class="chat-title">\n            ';
 if (url) { ;
__p += '\n                <a href="' +
__e(url) +
'" target="_blank" rel="noopener" class="user">\n            ';
 } ;
__p += '\n                    ' +
__e( title ) +
'\n            ';
 if (url) { ;
__p += '\n                </a>\n            ';
 } ;
__p += '\n            <p class="user-custom-message"><p/>\n        </div>\n    </div>\n    <div class="chat-body">\n        <div class="chat-content ';
 if (show_send_button) { ;
__p += 'chat-content-sendbutton';
 } ;
__p += '"></div>\n        <div class="new-msgs-indicator hidden">▼ ' +
__e( unread_msgs ) +
' ▼</div>\n        ';
 if (show_textarea) { ;
__p += '\n        <form class="sendXMPPMessage" action="" method="post">\n            ';
 if (show_toolbar) { ;
__p += '\n                <ul class="chat-toolbar no-text-select"></ul>\n            ';
 } ;
__p += '\n        <textarea\n            type="text"\n            class="chat-textarea ';
 if (show_send_button) { ;
__p += 'chat-textarea-send-button';
 } ;
__p += '"\n            placeholder="' +
__e(label_personal_message) +
'"/>\n\n        ';
 if (show_send_button) { ;
__p += '\n            <button type="submit" class="pure-button send-button">' +
__e( label_send ) +
'</button>\n        ';
 } ;
__p += '\n        </form>\n        ';
 } ;
__p += '\n    </div>\n</div>\n';

}
return __p
};});


define('tpl!new_day', ['lodash'], function(_) {return function(obj) {
obj || (obj = {});
var __t, __p = '', __e = _.escape;
with (obj) {
__p += '<time class="chat-info chat-date" data-isodate="' +
__e(isodate) +
'">' +
__e(datestring) +
'</time>\n';

}
return __p
};});


define('tpl!action', ['lodash'], function(_) {return function(obj) {
obj || (obj = {});
var __t, __p = '', __e = _.escape;
with (obj) {
__p += '<div class="chat-message ' +
__e(extra_classes) +
'" data-isodate="' +
__e(isodate) +
'">\n    <span class="chat-msg-author chat-msg-' +
__e(sender) +
'">' +
__e(time) +
' **' +
__e(username) +
'&nbsp;</span>\n    <span class="chat-msg-content chat-action"><!-- message gets added here via renderMessage --></span>\n</div>\n';

}
return __p
};});


define('tpl!message', ['lodash'], function(_) {return function(obj) {
obj || (obj = {});
var __t, __p = '', __e = _.escape;
with (obj) {
__p += '<div class="chat-message ' +
__e(extra_classes) +
'" data-isodate="' +
__e(isodate) +
'" data-msgid="' +
__e(msgid) +
'">\n    <span class="chat-msg-author chat-msg-' +
__e(sender) +
'">' +
__e(time) +
' ' +
__e(username) +
':&nbsp;</span>\n    <span class="chat-msg-content"><!-- message gets added here via renderMessage --></span>\n</div>\n';

}
return __p
};});


define('tpl!help_message', ['lodash'], function(_) {return function(obj) {
obj || (obj = {});
var __t, __p = '', __e = _.escape;
with (obj) {
__p += '<div class="chat-' +
__e(type) +
'">' +
__e(message) +
'</div>\n';

}
return __p
};});


define('tpl!toolbar', ['lodash'], function(_) {return function(obj) {
obj || (obj = {});
var __t, __p = '', __e = _.escape, __j = Array.prototype.join;
function print() { __p += __j.call(arguments, '') }
with (obj) {

 if (show_emoticons)  { ;
__p += '\n    <li class="toggle-smiley icon-happy" title="' +
__e(label_insert_smiley) +
'">\n        <ul>\n            <li><a class="icon-smiley" href="#" data-emoticon=":)"></a></li>\n            <li><a class="icon-wink" href="#" data-emoticon=";)"></a></li>\n            <li><a class="icon-grin" href="#" data-emoticon=":D"></a></li>\n            <li><a class="icon-tongue" href="#" data-emoticon=":P"></a></li>\n            <li><a class="icon-cool" href="#" data-emoticon="8)"></a></li>\n            <li><a class="icon-evil" href="#" data-emoticon=">:)"></a></li>\n            <li><a class="icon-confused" href="#" data-emoticon=":S"></a></li>\n            <li><a class="icon-wondering" href="#" data-emoticon=":\\"></a></li>\n            <li><a class="icon-angry" href="#" data-emoticon=">:("></a></li>\n            <li><a class="icon-sad" href="#" data-emoticon=":("></a></li>\n            <li><a class="icon-shocked" href="#" data-emoticon=":O"></a></li>\n            <li><a class="icon-thumbs-up" href="#" data-emoticon="(^.^)b"></a></li>\n            <li><a class="icon-heart" href="#" data-emoticon="<3"></a></li>\n        </ul>\n    </li>\n';
 } ;
__p += '\n';
 if (show_call_button)  { ;
__p += '\n<li class="toggle-call"><a class="icon-phone" title="' +
__e(label_start_call) +
'"></a></li>\n';
 } ;
__p += '\n';
 if (show_clear_button)  { ;
__p += '\n<li class="toggle-clear"><a class="icon-remove" title="' +
__e(label_clear) +
'"></a></li>\n';
 } ;
__p += '\n';

}
return __p
};});


define('tpl!avatar', ['lodash'], function(_) {return function(obj) {
obj || (obj = {});
var __t, __p = '';
with (obj) {
__p += '<canvas height="32px" width="32px" class="avatar"></canvas>\n';

}
return __p
};});

// Converse.js (A browser based XMPP chat client)
// http://conversejs.org
//
// Copyright (c) 2012-2017, Jan-Carel Brand <jc@opkode.com>
// Licensed under the Mozilla Public License (MPLv2)
//
/*global define */

(function (root, factory) {
    define('converse-chatview',[
            "converse-core",
            "tpl!chatbox",
            "tpl!new_day",
            "tpl!action",
            "tpl!message",
            "tpl!help_message",
            "tpl!toolbar",
            "tpl!avatar"
    ], factory);
}(this, function (
            converse,
            tpl_chatbox,
            tpl_new_day,
            tpl_action,
            tpl_message,
            tpl_help_message,
            tpl_toolbar,
            tpl_avatar
    ) {
    "use strict";
    var $ = converse.env.jQuery,
        $msg = converse.env.$msg,
        Backbone = converse.env.Backbone,
        Strophe = converse.env.Strophe,
        _ = converse.env._,
        moment = converse.env.moment,
        utils = converse.env.utils;

    var KEY = {
        ENTER: 13,
        FORWARD_SLASH: 47
    };


    converse.plugins.add('converse-chatview', {

        overrides: {
            // Overrides mentioned here will be picked up by converse.js's
            // plugin architecture they will replace existing methods on the
            // relevant objects or classes.
            //
            // New functions which don't exist yet can also be added.

            ChatBoxViews: {
                onChatBoxAdded: function (item) {
                    var _converse = this.__super__._converse;
                    var view = this.get(item.get('id'));
                    if (!view) {
                        view = new _converse.ChatBoxView({model: item});
                        this.add(item.get('id'), view);
                        return view;
                    } else {
                        return this.__super__.onChatBoxAdded.apply(this, arguments);
                    }
                }
            }
        },


        initialize: function () {
            /* The initialize function gets called as soon as the plugin is
             * loaded by converse.js's plugin machinery.
             */
            var _converse = this._converse,
                __ = _converse.__;

            this.updateSettings({
                chatview_avatar_height: 32,
                chatview_avatar_width: 32,
                show_toolbar: true,
                time_format: 'HH:mm',
                visible_toolbar_buttons: {
                    'emoticons': true,
                    'call': false,
                    'clear': true
                },
            });

            _converse.ChatBoxView = Backbone.View.extend({
                length: 200,
                tagName: 'div',
                className: 'chatbox hidden',
                is_chatroom: false,  // Leaky abstraction from MUC

                events: {
                    'click .close-chatbox-button': 'close',
                    'keypress .chat-textarea': 'keyPressed',
                    'click .send-button': 'onSendButtonClicked',
                    'click .toggle-smiley': 'toggleEmoticonMenu',
                    'click .toggle-smiley ul li': 'insertEmoticon',
                    'click .toggle-clear': 'clearMessages',
                    'click .toggle-call': 'toggleCall',
                    'click .new-msgs-indicator': 'viewUnreadMessages'
                },

                initialize: function () {
                    this.model.messages.on('add', this.onMessageAdded, this);
                    this.model.on('show', this.show, this);
                    this.model.on('destroy', this.hide, this);
                    // TODO check for changed fullname as well
                    this.model.on('change:chat_state', this.sendChatState, this);
                    this.model.on('change:chat_status', this.onChatStatusChanged, this);
                    this.model.on('change:image', this.renderAvatar, this);
                    this.model.on('change:status', this.onStatusChanged, this);
                    this.model.on('showHelpMessages', this.showHelpMessages, this);
                    this.model.on('sendMessage', this.sendMessage, this);
                    this.render().fetchMessages();
                    _converse.emit('chatBoxInitialized', this);
                },

                render: function () {
                    this.$el.attr('id', this.model.get('box_id'))
                        .html(tpl_chatbox(
                                _.extend(this.model.toJSON(), {
                                        show_toolbar: _converse.show_toolbar,
                                        show_textarea: true,
                                        show_send_button: _converse.show_send_button,
                                        title: this.model.get('fullname'),
                                        unread_msgs: __('You have unread messages'),
                                        info_close: __('Close this chat box'),
                                        label_personal_message: __('Personal message'),
                                        label_send: __('Send')
                                    }
                                )
                            )
                        );
                    this.$content = this.$el.find('.chat-content');
                    this.renderToolbar().renderAvatar();
                    _converse.emit('chatBoxOpened', this);
                    utils.refreshWebkit();
                    return this.showStatusMessage();
                },

                afterMessagesFetched: function () {
                    this.insertIntoDOM();
                    this.scrollDown();
                    // We only start listening for the scroll event after
                    // cached messages have been fetched
                    this.$content.on('scroll', this.markScrolled.bind(this));
                },

                fetchMessages: function () {
                    this.model.messages.fetch({
                        'add': true,
                        'success': this.afterMessagesFetched.bind(this),
                        'error': this.afterMessagesFetched.bind(this),
                    });
                    return this;
                },

                insertIntoDOM: function () {
                    /* This method gets overridden in src/converse-controlbox.js if
                     * the controlbox plugin is active.
                     */
                    var container = document.querySelector('#conversejs');
                    if (this.el.parentNode !== container) {
                        container.insertBefore(this.el, container.firstChild);
                    }
                    return this;
                },

                clearStatusNotification: function () {
                    this.$content.find('div.chat-event').remove();
                },

                showStatusNotification: function (message, keep_old, permanent) {
                    if (!keep_old) {
                        this.clearStatusNotification();
                    }
                    var $el = $('<div class="chat-info"></div>').text(message);
                    if (!permanent) {
                        $el.addClass('chat-event');
                    }
                    this.$content.append($el);
                    this.scrollDown();
                },

                addSpinner: function () {
                    if (_.isNull(this.el.querySelector('.spinner'))) {
                        this.$content.prepend('<span class="spinner"/>');
                    }
                },

                clearSpinner: function () {
                    if (this.$content.children(':first').is('span.spinner')) {
                        this.$content.children(':first').remove();
                    }
                },

                insertDayIndicator: function (date, prepend) {
                    /* Appends (or prepends if "prepend" is truthy) an indicator
                     * into the chat area, showing the day as given by the
                     * passed in date.
                     *
                     * Parameters:
                     *  (String) date - An ISO8601 date string.
                     */
                    var day_date = moment(date).startOf('day');
                    var insert = prepend ? this.$content.prepend: this.$content.append;
                    insert.call(this.$content, tpl_new_day({
                        isodate: day_date.format(),
                        datestring: day_date.format("dddd MMM Do YYYY")
                    }));
                },

                insertMessage: function (attrs, prepend) {
                    /* Helper method which appends a message (or prepends if the
                     * 2nd parameter is set to true) to the end of the chat box's
                     * content area.
                     *
                     * Parameters:
                     *  (Object) attrs: An object containing the message attributes.
                     */
                    var that = this;
                    var insert = prepend ? this.$content.prepend : this.$content.append;
                    _.flow(
                        function ($el) {
                            insert.call(that.$content, $el);
                            return $el;
                        },
                        this.scrollDown.bind(this)
                    )(this.renderMessage(attrs));
                },

                showMessage: function (attrs) {
                    /* Inserts a chat message into the content area of the chat box.
                     * Will also insert a new day indicator if the message is on a
                     * different day.
                     *
                     * The message to show may either be newer than the newest
                     * message, or older than the oldest message.
                     *
                     * Parameters:
                     *  (Object) attrs: An object containing the message
                     *      attributes.
                     */
                    var msg_dates, idx,
                        $first_msg = this.$content.find('.chat-message:first'),
                        first_msg_date = $first_msg.data('isodate'),
                        current_msg_date = moment(attrs.time) || moment,
                        last_msg_date = this.$content.find('.chat-message:last').data('isodate');

                    if (!first_msg_date) {
                        // This is the first received message, so we insert a
                        // date indicator before it.
                        this.insertDayIndicator(current_msg_date);
                        this.insertMessage(attrs);
                        return;
                    }
                    if (current_msg_date.isAfter(last_msg_date) ||
                            current_msg_date.isSame(last_msg_date)) {
                        // The new message is after the last message
                        if (current_msg_date.isAfter(last_msg_date, 'day')) {
                            // Append a new day indicator
                            this.insertDayIndicator(current_msg_date);
                        }
                        this.insertMessage(attrs);
                        return;
                    }
                    if (current_msg_date.isBefore(first_msg_date) ||
                            current_msg_date.isSame(first_msg_date)) {
                        // The message is before the first, but on the same day.
                        // We need to prepend the message immediately before the
                        // first message (so that it'll still be after the day
                        // indicator).
                        this.insertMessage(attrs, 'prepend');
                        if (current_msg_date.isBefore(first_msg_date, 'day')) {
                            // This message is also on a different day, so
                            // we prepend a day indicator.
                            this.insertDayIndicator(current_msg_date, 'prepend');
                        }
                        return;
                    }
                    // Find the correct place to position the message
                    current_msg_date = current_msg_date.format();
                    msg_dates = _.map(this.$content.find('.chat-message'), function (el) {
                        return $(el).data('isodate');
                    });
                    msg_dates.push(current_msg_date);
                    msg_dates.sort();
                    idx = msg_dates.indexOf(current_msg_date)-1;
                    _.flow(
                        function ($el) {
                            $el.insertAfter(
                                this.$content.find('.chat-message[data-isodate="'+msg_dates[idx]+'"]'));
                            return $el;
                        }.bind(this),
                        this.scrollDown.bind(this)
                    )(this.renderMessage(attrs));
                },

                getExtraMessageTemplateAttributes: function () {
                    /* Provides a hook for sending more attributes to the
                     * message template.
                     *
                     * Parameters:
                     *  (Object) attrs: An object containing message attributes.
                     */
                    return {};
                },

                getExtraMessageClasses: function (attrs) {
                    return attrs.delayed && 'delayed' || '';
                },

                renderMessage: function (attrs) {
                    /* Renders a chat message based on the passed in attributes.
                     *
                     * Parameters:
                     *  (Object) attrs: An object containing the message attributes.
                     *
                     *  Returns:
                     *      The DOM element representing the message.
                     */
                    var msg_time = moment(attrs.time) || moment,
                        text = attrs.message,
                        match = text.match(/^\/(.*?)(?: (.*))?$/),
                        fullname = this.model.get('fullname') || attrs.fullname,
                        template, username;

                    if ((match) && (match[1] === 'me')) {
                        text = text.replace(/^\/me/, '');
                        template = tpl_action;
                        if (attrs.sender === 'me') {
                            fullname = _converse.xmppstatus.get('fullname') || attrs.fullname;
                            username = _.isNil(fullname)? _converse.bare_jid: fullname;
                        } else {
                            username = attrs.fullname;
                        }
                    } else  {
                        template = tpl_message;
                        username = attrs.sender === 'me' && __('me') || fullname;
                    }
                    this.$content.find('div.chat-event').remove();

                    if (text.length > 8000) {
                        text = text.substring(0, 10) + '...';
                        this.showStatusNotification(
                            __("A very large message has been received."+
                               "This might be due to an attack meant to degrade the chat performance."+
                               "Output has been shortened."),
                            true, true);
                    }
                    var $msg = $(template(
                        _.extend(this.getExtraMessageTemplateAttributes(attrs), {
                            'msgid': attrs.msgid,
                            'sender': attrs.sender,
                            'time': msg_time.format(_converse.time_format),
                            'isodate': msg_time.format(),
                            'username': username,
                            'extra_classes': this.getExtraMessageClasses(attrs)
                        })
                    ));
                    $msg.find('.chat-msg-content').first()
                        .text(text)
                        .addHyperlinks()
                        .addEmoticons(_converse.visible_toolbar_buttons.emoticons);
                    return $msg;
                },

                showHelpMessages: function (msgs, type, spinner) {
                    var i, msgs_length = msgs.length;
                    for (i=0; i<msgs_length; i++) {
                        this.$content.append($(tpl_help_message({
                            'type': type||'info',
                            'message': msgs[i]
                        })));
                    }
                    if (spinner === true) {
                        this.$content.append('<span class="spinner"/>');
                    } else if (spinner === false) {
                        this.$content.find('span.spinner').remove();
                    }
                    return this.scrollDown();
                },

                handleChatStateMessage: function (message) {
                    if (message.get('chat_state') === _converse.COMPOSING) {
                        if (message.get('sender') === 'me') {
                            this.showStatusNotification(__('Typing from another device'));
                        } else {
                            this.showStatusNotification(message.get('fullname')+' '+__('is typing'));
                        }
                        this.clear_status_timeout = window.setTimeout(this.clearStatusNotification.bind(this), 30000);
                    } else if (message.get('chat_state') === _converse.PAUSED) {
                        if (message.get('sender') === 'me') {
                            this.showStatusNotification(__('Stopped typing on the other device'));
                        } else {
                            this.showStatusNotification(message.get('fullname')+' '+__('has stopped typing'));
                        }
                    } else if (_.includes([_converse.INACTIVE, _converse.ACTIVE], message.get('chat_state'))) {
                        this.$content.find('div.chat-event').remove();
                    } else if (message.get('chat_state') === _converse.GONE) {
                        this.showStatusNotification(message.get('fullname')+' '+__('has gone away'));
                    }
                },

                shouldShowOnTextMessage: function () {
                    return !this.$el.is(':visible');
                },

                updateNewMessageIndicators: function (message) {
                    /* We have two indicators of new messages. The unread messages
                     * counter, which shows the number of unread messages in
                     * the document.title, and the "new messages" indicator in
                     * a chat area, if it's scrolled up so that new messages
                     * aren't visible.
                     *
                     * In both cases we ignore MAM messages.
                     */
                    if (!message.get('archive_id')) {
                        if (this.model.get('scrolled', true)) {
                            this.$el.find('.new-msgs-indicator').removeClass('hidden');
                        }
                        if (_converse.windowState === 'hidden' || this.model.get('scrolled', true)) {
                            _converse.incrementMsgCounter();
                        }
                    }
                },

                handleTextMessage: function (message) {
                    this.showMessage(_.clone(message.attributes));
                    if (message.get('sender') !== 'me') {
                        this.updateNewMessageIndicators(message);
                    } else {
                        // We remove the "scrolled" flag so that the chat area
                        // gets scrolled down. We always want to scroll down
                        // when the user writes a message as opposed to when a
                        // message is received.
                        this.model.set('scrolled', false);
                    }
                    if (this.shouldShowOnTextMessage()) {
                        this.show();
                    } else {
                        this.scrollDown();
                    }
                },

                handleErrorMessage: function (message) {
                    var $message = $('[data-msgid='+message.get('msgid')+']');
                    if ($message.length) {
                        $message.after($('<div class="chat-info chat-error"></div>').text(message.get('message')));
                        this.scrollDown();
                    }
                },

                onMessageAdded: function (message) {
                    /* Handler that gets called when a new message object is created.
                     *
                     * Parameters:
                     *    (Object) message - The message Backbone object that was added.
                     */
                    if (!_.isUndefined(this.clear_status_timeout)) {
                        window.clearTimeout(this.clear_status_timeout);
                        delete this.clear_status_timeout;
                    }
                    if (message.get('type') === 'error') {
                        this.handleErrorMessage(message);
                    } else if (!message.get('message')) {
                        this.handleChatStateMessage(message);
                    } else {
                        this.handleTextMessage(message);
                    }
                },

                createMessageStanza: function (message) {
                    return $msg({
                                from: _converse.connection.jid,
                                to: this.model.get('jid'),
                                type: 'chat',
                                id: message.get('msgid')
                        }).c('body').t(message.get('message')).up()
                            .c(_converse.ACTIVE, {'xmlns': Strophe.NS.CHATSTATES}).up();
                },

                sendMessage: function (message) {
                    /* Responsible for sending off a text message.
                     *
                     *  Parameters:
                     *    (Message) message - The chat message
                     */
                    // TODO: We might want to send to specfic resources.
                    // Especially in the OTR case.
                    var messageStanza = this.createMessageStanza(message);
                    _converse.connection.send(messageStanza);
                    if (_converse.forward_messages) {
                        // Forward the message, so that other connected resources are also aware of it.
                        _converse.connection.send(
                            $msg({ to: _converse.bare_jid, type: 'chat', id: message.get('msgid') })
                            .c('forwarded', {xmlns:'urn:xmpp:forward:0'})
                            .c('delay', {xmns:'urn:xmpp:delay',stamp:(new Date()).getTime()}).up()
                            .cnode(messageStanza.tree())
                        );
                    }
                },

                onMessageSubmitted: function (text) {
                    /* This method gets called once the user has typed a message
                     * and then pressed enter in a chat box.
                     *
                     *  Parameters:
                     *    (string) text - The chat message text.
                     */
                    if (!_converse.connection.authenticated) {
                        return this.showHelpMessages(
                            ['Sorry, the connection has been lost, '+
                                'and your message could not be sent'],
                            'error'
                        );
                    }
                    var match = text.replace(/^\s*/, "").match(/^\/(.*)\s*$/), msgs;
                    if (match) {
                        if (match[1] === "clear") {
                            return this.clearMessages();
                        }
                        else if (match[1] === "help") {
                            msgs = [
                                '<strong>/help</strong>:'+__('Show this menu')+'',
                                '<strong>/me</strong>:'+__('Write in the third person')+'',
                                '<strong>/clear</strong>:'+__('Remove messages')+''
                                ];
                            this.showHelpMessages(msgs);
                            return;
                        }
                    }
                    var fullname = _converse.xmppstatus.get('fullname');
                    fullname = _.isEmpty(fullname)? _converse.bare_jid: fullname;
                    var message = this.model.messages.create({
                        fullname: fullname,
                        sender: 'me',
                        time: moment().format(),
                        message: text
                    });
                    this.sendMessage(message);
                },

                sendChatState: function () {
                    /* Sends a message with the status of the user in this chat session
                     * as taken from the 'chat_state' attribute of the chat box.
                     * See XEP-0085 Chat State Notifications.
                     */
                    _converse.connection.send(
                        $msg({'to':this.model.get('jid'), 'type': 'chat'})
                            .c(this.model.get('chat_state'), {'xmlns': Strophe.NS.CHATSTATES}).up()
                            .c('no-store', {'xmlns': Strophe.NS.HINTS}).up()
                            .c('no-permanent-store', {'xmlns': Strophe.NS.HINTS})
                    );
                },

                setChatState: function (state, no_save) {
                    /* Mutator for setting the chat state of this chat session.
                     * Handles clearing of any chat state notification timeouts and
                     * setting new ones if necessary.
                     * Timeouts are set when the  state being set is COMPOSING or PAUSED.
                     * After the timeout, COMPOSING will become PAUSED and PAUSED will become INACTIVE.
                     * See XEP-0085 Chat State Notifications.
                     *
                     *  Parameters:
                     *    (string) state - The chat state (consts ACTIVE, COMPOSING, PAUSED, INACTIVE, GONE)
                     *    (Boolean) no_save - Just do the cleanup or setup but don't actually save the state.
                     */
                    if (!_.isUndefined(this.chat_state_timeout)) {
                        window.clearTimeout(this.chat_state_timeout);
                        delete this.chat_state_timeout;
                    }
                    if (state === _converse.COMPOSING) {
                        this.chat_state_timeout = window.setTimeout(
                                this.setChatState.bind(this), _converse.TIMEOUTS.PAUSED, _converse.PAUSED);
                    } else if (state === _converse.PAUSED) {
                        this.chat_state_timeout = window.setTimeout(
                                this.setChatState.bind(this), _converse.TIMEOUTS.INACTIVE, _converse.INACTIVE);
                    }
                    if (!no_save && this.model.get('chat_state') !== state) {
                        this.model.set('chat_state', state);
                    }
                    return this;
                },

                keyPressed: function (ev) {
                    /* Event handler for when a key is pressed in a chat box textarea.
                     */
                    var textarea = ev.target, message;
                    if (ev.keyCode === KEY.ENTER) {
                        ev.preventDefault();
                        message = textarea.value;
                        textarea.value = '';
                        textarea.focus();
                        if (message !== '') {
                            this.onMessageSubmitted(message);
                            _converse.emit('messageSend', message);
                        }
                        this.setChatState(_converse.ACTIVE);
                    } else {
                        // Set chat state to composing if keyCode is not a forward-slash
                        // (which would imply an internal command and not a message).
                        this.setChatState(_converse.COMPOSING, ev.keyCode === KEY.FORWARD_SLASH);
                    }
                },

                onSendButtonClicked: function(ev) {
                    /* Event handler for when a send button is clicked in a chat box textarea.
                     */
                    ev.preventDefault();
                    var textarea = this.el.querySelector('.chat-textarea'),
                        message = textarea.value;

                    textarea.value = '';
                    textarea.focus();
                    if (message !== '') {
                        this.onMessageSubmitted(message);
                        _converse.emit('messageSend', message);
                    }
                    this.setChatState(_converse.ACTIVE);
                },

                clearMessages: function (ev) {
                    if (ev && ev.preventDefault) { ev.preventDefault(); }
                    var result = confirm(__("Are you sure you want to clear the messages from this chat box?"));
                    if (result === true) {
                        this.$content.empty();
                        this.model.messages.reset();
                        this.model.messages.browserStorage._clear();
                    }
                    return this;
                },

                insertIntoTextArea: function (value) {
                    var $textbox = this.$el.find('textarea.chat-textarea');
                    var existing = $textbox.val();
                    if (existing && (existing[existing.length-1] !== ' ')) {
                        existing = existing + ' ';
                    }
                    $textbox.focus().val(existing+value+' ');
                },

                insertEmoticon: function (ev) {
                    ev.stopPropagation();
                    this.$el.find('.toggle-smiley ul').slideToggle(200);
                    var $target = $(ev.target);
                    $target = $target.is('a') ? $target : $target.children('a');
                    this.insertIntoTextArea($target.data('emoticon'));
                },

                toggleEmoticonMenu: function (ev) {
                    ev.stopPropagation();
                    this.$el.find('.toggle-smiley ul').slideToggle(200);
                },

                toggleCall: function (ev) {
                    ev.stopPropagation();
                    _converse.emit('callButtonClicked', {
                        connection: _converse.connection,
                        model: this.model
                    });
                },

                onChatStatusChanged: function (item) {
                    var chat_status = item.get('chat_status'),
                        fullname = item.get('fullname');
                    fullname = _.isEmpty(fullname)? item.get('jid'): fullname;
                    if (this.$el.is(':visible')) {
                        if (chat_status === 'offline') {
                            this.showStatusNotification(fullname+' '+__('has gone offline'));
                        } else if (chat_status === 'away') {
                            this.showStatusNotification(fullname+' '+__('has gone away'));
                        } else if ((chat_status === 'dnd')) {
                            this.showStatusNotification(fullname+' '+__('is busy'));
                        } else if (chat_status === 'online') {
                            this.$el.find('div.chat-event').remove();
                        }
                    }
                },

                onStatusChanged: function (item) {
                    this.showStatusMessage();
                    _converse.emit('contactStatusMessageChanged', {
                        'contact': item.attributes,
                        'message': item.get('status')
                    });
                },

                showStatusMessage: function (msg) {
                    msg = msg || this.model.get('status');
                    if (_.isString(msg)) {
                        this.$el.find('p.user-custom-message').text(msg).attr('title', msg);
                    }
                    return this;
                },

                close: function (ev) {
                    if (ev && ev.preventDefault) { ev.preventDefault(); }
                    if (_converse.connection.connected) {
                        // Immediately sending the chat state, because the
                        // model is going to be destroyed afterwards.
                        this.model.set('chat_state', _converse.INACTIVE);
                        this.sendChatState();
                    }
                    try {
                        this.model.destroy();
                    } catch (e) {
                        _converse.log(e);
                    }
                    this.remove();
                    _converse.emit('chatBoxClosed', this);
                    return this;
                },

                getToolbarOptions: function (options) {
                    return _.extend(options || {}, {
                        'label_clear': __('Clear all messages'),
                        'label_insert_smiley': __('Insert a smiley'),
                        'label_start_call': __('Start a call'),
                        'show_call_button': _converse.visible_toolbar_buttons.call,
                        'show_clear_button': _converse.visible_toolbar_buttons.clear,
                        'show_emoticons': _converse.visible_toolbar_buttons.emoticons,
                    });
                },

                renderToolbar: function (toolbar, options) {
                    if (!_converse.show_toolbar) { return; }
                    toolbar = toolbar || tpl_toolbar;
                    options = _.extend(
                        this.model.toJSON(),
                        this.getToolbarOptions(options || {})
                    );
                    this.$el.find('.chat-toolbar').html(toolbar(options));
                    return this;
                },

                renderAvatar: function () {
                    if (!this.model.get('image')) {
                        return;
                    }
                    var width = _converse.chatview_avatar_width;
                    var height = _converse.chatview_avatar_height;
                    var img_src = 'data:'+this.model.get('image_type')+';base64,'+this.model.get('image'),
                        canvas = $(tpl_avatar({
                            'width': width,
                            'height': height
                        })).get(0);

                    if (!(canvas.getContext && canvas.getContext('2d'))) {
                        return this;
                    }
                    var ctx = canvas.getContext('2d');
                    var img = new Image();   // Create new Image object
                    img.onload = function () {
                        var ratio = img.width/img.height;
                        if (ratio < 1) {
                            ctx.drawImage(img, 0,0, width, height*(1/ratio));
                        } else {
                            ctx.drawImage(img, 0,0, width, height*ratio);
                        }

                    };
                    img.src = img_src;
                    this.$el.find('.chat-title').before(canvas);
                    return this;
                },

                focus: function () {
                    this.$el.find('.chat-textarea').focus();
                    _converse.emit('chatBoxFocused', this);
                    return this;
                },

                hide: function () {
                    this.el.classList.add('hidden');
                    utils.refreshWebkit();
                    return this;
                },

                afterShown: function (focus) {
                    if (_converse.connection.connected) {
                        // Without a connection, we haven't yet initialized
                        // localstorage
                        this.model.save();
                    }
                    this.setChatState(_converse.ACTIVE);
                    this.scrollDown();
                    if (focus) {
                        this.focus();
                    }
                },

                _show: function (focus) {
                    /* Inner show method that gets debounced */
                    if (this.$el.is(':visible') && this.$el.css('opacity') === "1") {
                        if (focus) { this.focus(); }
                        return;
                    }
                    utils.fadeIn(this.el, _.bind(this.afterShown, this, focus));
                },

                show: function (focus) {
                    if (_.isUndefined(this.debouncedShow)) {
                        /* We wrap the method in a debouncer and set it on the
                         * instance, so that we have it debounced per instance.
                         * Debouncing it on the class-level is too broad.
                         */
                        this.debouncedShow = _.debounce(this._show, 250, {'leading': true});
                    }
                    this.debouncedShow.apply(this, arguments);
                    return this;
                },

                hideNewMessagesIndicator: function () {
                    var new_msgs_indicator = this.el.querySelector('.new-msgs-indicator');
                    if (!_.isNull(new_msgs_indicator)) {
                        new_msgs_indicator.classList.add('hidden');
                    }
                },

                markScrolled: _.debounce(function (ev) {
                    /* Called when the chat content is scrolled up or down.
                     * We want to record when the user has scrolled away from
                     * the bottom, so that we don't automatically scroll away
                     * from what the user is reading when new messages are
                     * received.
                     */
                    if (ev && ev.preventDefault) { ev.preventDefault(); }
                    if (this.model.get('auto_scrolled')) {
                        this.model.set({
                            'scrolled': false,
                            'auto_scrolled': false
                        });
                        return;
                    }
                    var is_at_bottom =
                        (this.$content.scrollTop() + this.$content.innerHeight()) >=
                            this.$content[0].scrollHeight-10;
                    if (is_at_bottom) {
                        this.hideNewMessagesIndicator();
                        this.model.save('scrolled', false);
                    } else {
                        // We're not at the bottom of the chat area, so we mark
                        // that the box is in a scrolled-up state.
                        this.model.save('scrolled', true);
                    }
                }, 150),

                viewUnreadMessages: function () {
                    this.model.save('scrolled', false);
                    this.scrollDown();
                },

                _scrollDown: function () {
                    /* Inner method that gets debounced */
                    if (this.$content.is(':visible') && !this.model.get('scrolled')) {
                        this.$content.scrollTop(this.$content[0].scrollHeight);
                        this.hideNewMessagesIndicator();
                        this.model.save({'auto_scrolled': true});
                    }
                },

                scrollDown: function () {
                    if (_.isUndefined(this.debouncedScrollDown)) {
                        /* We wrap the method in a debouncer and set it on the
                         * instance, so that we have it debounced per instance.
                         * Debouncing it on the class-level is too broad.
                         */
                        this.debouncedScrollDown = _.debounce(this._scrollDown, 250);
                    }
                    this.debouncedScrollDown.apply(this, arguments);
                    return this;
                }
            });
        }
    });

    return converse;
}));


define('tpl!add_contact_dropdown', ['lodash'], function(_) {return function(obj) {
obj || (obj = {});
var __t, __p = '', __e = _.escape;
with (obj) {
__p += '<dl class="add-converse-contact dropdown">\n    <dt id="xmpp-contact-search" class="fancy-dropdown">\n        <a class="toggle-xmpp-contact-form icon-plus" href="#" title="' +
__e(label_click_to_chat) +
'"> ' +
__e(label_add_contact) +
'</a>\n    </dt>\n    <dd class="search-xmpp"><ul></ul></dd>\n</dl>\n';

}
return __p
};});


define('tpl!add_contact_form', ['lodash'], function(_) {return function(obj) {
obj || (obj = {});
var __t, __p = '', __e = _.escape;
with (obj) {
__p += '<li>\n    <form class="pure-form add-xmpp-contact">\n        <input type="text"\n            name="identifier"\n            class="username"\n            placeholder="' +
__e(label_contact_username) +
'"/>\n        <button class="pure-button button-primary" type="submit">' +
__e(label_add) +
'</button>\n    </form>\n</li>\n';

}
return __p
};});


define('tpl!change_status_message', ['lodash'], function(_) {return function(obj) {
obj || (obj = {});
var __t, __p = '', __e = _.escape;
with (obj) {
__p += '<form id="set-custom-xmpp-status" class="pure-form">\n<fieldset>\n    <span class="input-button-group">\n        <input type="text" class="custom-xmpp-status" value="' +
__e(status_message) +
'" placeholder="' +
__e(label_custom_status) +
'"/>\n        <input type="submit" class="pure-button button-primary" value="' +
__e(label_save) +
'"/>\n    </span>\n</fieldset>\n</form>\n';

}
return __p
};});


define('tpl!chat_status', ['lodash'], function(_) {return function(obj) {
obj || (obj = {});
var __t, __p = '', __e = _.escape;
with (obj) {
__p += '<div class="xmpp-status">\n    <a class="choose-xmpp-status ' +
__e(chat_status) +
' icon-' +
__e(chat_status) +
'" data-value="' +
__e(status_message) +
'" href="#" title="' +
__e(desc_change_status) +
'">\n        ' +
__e(status_message) +
'\n    </a>\n    <a class="change-xmpp-status-message icon-pencil" href="#" title="' +
__e(desc_custom_status) +
'"></a>\n</div>\n';

}
return __p
};});


define('tpl!choose_status', ['lodash'], function(_) {return function(obj) {
obj || (obj = {});
var __t, __p = '';
with (obj) {
__p += '<dl id="target" class="dropdown">\n    <dt id="fancy-xmpp-status-select" class="fancy-dropdown"></dt>\n    <dd><ul class="xmpp-status-menu"></ul></dd>\n</dl>\n';

}
return __p
};});


define('tpl!contacts_panel', ['lodash'], function(_) {return function(obj) {
obj || (obj = {});
var __t, __p = '', __e = _.escape, __j = Array.prototype.join;
function print() { __p += __j.call(arguments, '') }
with (obj) {
__p += '<form class="pure-form set-xmpp-status" action="" method="post">\n    <span id="xmpp-status-holder">\n        <select id="select-xmpp-status" style="display:none">\n            <option value="online">' +
__e(label_online) +
'</option>\n            <option value="dnd">' +
__e(label_busy) +
'</option>\n            <option value="away">' +
__e(label_away) +
'</option>\n            ';
 if (include_offline_state)  { ;
__p += '\n            <option value="offline">' +
__e(label_offline) +
'</option>\n            ';
 } ;
__p += '\n            ';
 if (allow_logout)  { ;
__p += '\n            <option value="logout">' +
__e(label_logout) +
'</option>\n            ';
 } ;
__p += '\n        </select>\n    </span>\n</form>\n';

}
return __p
};});


define('tpl!contacts_tab', ['lodash'], function(_) {return function(obj) {
obj || (obj = {});
var __t, __p = '', __e = _.escape, __j = Array.prototype.join;
function print() { __p += __j.call(arguments, '') }
with (obj) {
__p += '<li><a class="s ';
 if (is_current) { ;
__p += ' current ';
 } ;
__p += '"\n       data-id="users" href="#users">\n    ' +
__e(label_contacts) +
'\n</a></li>\n';

}
return __p
};});


define('tpl!controlbox', ['lodash'], function(_) {return function(obj) {
obj || (obj = {});
var __t, __p = '', __j = Array.prototype.join;
function print() { __p += __j.call(arguments, '') }
with (obj) {
__p += '<div class="flyout box-flyout">\n    <div class="dragresize dragresize-top"></div>\n    <div class="dragresize dragresize-topleft"></div>\n    <div class="dragresize dragresize-left"></div>\n    <div class="chat-head controlbox-head">\n        <ul id="controlbox-tabs"></ul>\n        ';
 if (!sticky_controlbox) { ;
__p += '\n            <a class="chatbox-btn close-chatbox-button icon-close"></a>\n        ';
 } ;
__p += '\n    </div>\n    <div class="controlbox-panes"></div>\n</div>\n';

}
return __p
};});


define('tpl!controlbox_toggle', ['lodash'], function(_) {return function(obj) {
obj || (obj = {});
var __t, __p = '', __e = _.escape;
with (obj) {
__p += '<span class="conn-feedback">' +
__e(label_toggle) +
'</span>\n';

}
return __p
};});


define('tpl!login_panel', ['lodash'], function(_) {return function(obj) {
obj || (obj = {});
var __t, __p = '', __e = _.escape, __j = Array.prototype.join;
function print() { __p += __j.call(arguments, '') }
with (obj) {
__p += '<form class="pure-form pure-form-stacked converse-form" id="converse-login" method="post">\n    ';
 if (auto_login) { ;
__p += '\n        <span class="spinner login-submit"/>\n    ';
 } ;
__p += '\n    ';
 if (!auto_login) { ;
__p += '\n        ';
 if (authentication == LOGIN || authentication == EXTERNAL) { ;
__p += '\n            <label>' +
__e(label_username) +
'</label>\n            <input type="text" name="jid" placeholder="' +
__e(placeholder_username) +
'">\n            ';
 if (authentication !== EXTERNAL) { ;
__p += '\n                <label>' +
__e(label_password) +
'</label>\n                <input type="password" name="password" placeholder="' +
__e(placeholder_password) +
'">\n            ';
 } ;
__p += '\n            <input class="pure-button button-primary" type="submit" value="' +
__e(label_login) +
'">\n            <span class="conn-feedback"></span>\n        ';
 } ;
__p += '\n        ';
 if (authentication == ANONYMOUS) { ;
__p += '\n            <input class="pure-button button-primary login-anon" type="submit" value="' +
__e(label_anon_login) +
'"/>\n        ';
 } ;
__p += '\n        ';
 if (authentication == PREBIND) { ;
__p += '\n            <p>Disconnected.</p>\n        ';
 } ;
__p += '\n    ';
 } ;
__p += '\n</form>\n';

}
return __p
};});


define('tpl!login_tab', ['lodash'], function(_) {return function(obj) {
obj || (obj = {});
var __t, __p = '', __e = _.escape;
with (obj) {
__p += '<li><a class="current" data-id="login" href="#login-dialog">' +
__e(label_sign_in) +
'</a></li>\n';

}
return __p
};});


define('tpl!search_contact', ['lodash'], function(_) {return function(obj) {
obj || (obj = {});
var __t, __p = '', __e = _.escape;
with (obj) {
__p += '<li>\n    <form class="search-xmpp-contact">\n        <input type="text"\n            name="identifier"\n            class="username"\n            placeholder="' +
__e(label_contact_name) +
'"/>\n        <button type="submit">' +
__e(label_search) +
'</button>\n    </form>\n</li>\n';

}
return __p
};});


define('tpl!status_option', ['lodash'], function(_) {return function(obj) {
obj || (obj = {});
var __t, __p = '', __e = _.escape;
with (obj) {
__p += '<li>\n    <a href="#" class="' +
__e( value ) +
'" data-value="' +
__e( value ) +
'">\n        <span class="icon-' +
__e( value ) +
'"></span>\n        ' +
__e( text ) +
'\n    </a>\n</li>\n';

}
return __p
};});


define('tpl!group_header', ['lodash'], function(_) {return function(obj) {
obj || (obj = {});
var __t, __p = '', __e = _.escape;
with (obj) {
__p += '<a href="#" class="group-toggle icon-' +
__e(toggle_state) +
'" title="' +
__e(desc_group_toggle) +
'">' +
__e(label_group) +
'</a>\n';

}
return __p
};});


define('tpl!pending_contact', ['lodash'], function(_) {return function(obj) {
obj || (obj = {});
var __t, __p = '', __e = _.escape, __j = Array.prototype.join;
function print() { __p += __j.call(arguments, '') }
with (obj) {

 if (allow_chat_pending_contacts)  { ;
__p += '\n<a class="open-chat"href="#">\n';
 } ;
__p += '\n<span class="pending-contact-name" title="Name: ' +
__e(fullname) +
'\nJID: ' +
__e(jid) +
'">' +
__e(fullname) +
'</span> \n';
 if (allow_chat_pending_contacts)  { ;
__p += '\n</a>\n';
 } ;
__p += '\n<a class="remove-xmpp-contact icon-remove" title="' +
__e(desc_remove) +
'" href="#"></a>\n';

}
return __p
};});


define('tpl!requesting_contact', ['lodash'], function(_) {return function(obj) {
obj || (obj = {});
var __t, __p = '', __e = _.escape, __j = Array.prototype.join;
function print() { __p += __j.call(arguments, '') }
with (obj) {

 if (allow_chat_pending_contacts)  { ;
__p += '\n<a class="open-chat"href="#">\n';
 } ;
__p += '\n<span class="req-contact-name" title="Name: ' +
__e(fullname) +
'\nJID: ' +
__e(jid) +
'">' +
__e(fullname) +
'</span>\n';
 if (allow_chat_pending_contacts)  { ;
__p += '\n</a>\n';
 } ;
__p += '\n<span class="request-actions">\n    <a class="accept-xmpp-request icon-checkmark" aria-label="' +
__e(desc_accept) +
'" title="' +
__e(desc_accept) +
'" href="#"></a>\n    <a class="decline-xmpp-request icon-close" aria-label="' +
__e(desc_decline) +
'" title="' +
__e(desc_decline) +
'" href="#"></a>\n</span>\n';

}
return __p
};});


define('tpl!roster', ['lodash'], function(_) {return function(obj) {
obj || (obj = {});
var __t, __p = '';
with (obj) {
__p += '<dl class="roster-contacts" style="display: none;"></dl>\n';

}
return __p
};});


define('tpl!roster_filter', ['lodash'], function(_) {return function(obj) {
obj || (obj = {});
var __t, __p = '', __j = Array.prototype.join;
function print() { __p += __j.call(arguments, '') }
with (obj) {
__p += '<form class="pure-form roster-filter-form input-button-group">\n    <input value="' +
((__t = (filter_text)) == null ? '' : __t) +
'" class="roster-filter"\n           placeholder="' +
((__t = (placeholder)) == null ? '' : __t) +
'"\n           ';
 if (filter_type === 'state') { ;
__p += '  style="display: none" ';
 } ;
__p += ' >\n    <select class="state-type" ';
 if (filter_type !== 'state') { ;
__p += '  style="display: none" ';
 } ;
__p += ' >\n        <option value="">' +
((__t = (label_any)) == null ? '' : __t) +
'</option>\n        <option ';
 if (chat_state === 'online') { ;
__p += ' selected="selected" ';
 } ;
__p += '\n            value="online">' +
((__t = (label_online)) == null ? '' : __t) +
'</option>\n        <option ';
 if (chat_state === 'chat') { ;
__p += ' selected="selected" ';
 } ;
__p += '\n            value="chat">' +
((__t = (label_chatty)) == null ? '' : __t) +
'</option>\n        <option ';
 if (chat_state === 'dnd') { ;
__p += ' selected="selected" ';
 } ;
__p += '\n            value="dnd">' +
((__t = (label_busy)) == null ? '' : __t) +
'</option>\n        <option ';
 if (chat_state === 'away') { ;
__p += ' selected="selected" ';
 } ;
__p += '\n            value="away">' +
((__t = (label_away)) == null ? '' : __t) +
'</option>\n        <option ';
 if (chat_state === 'xa') { ;
__p += ' selected="selected" ';
 } ;
__p += '\n            value="xa">' +
((__t = (label_xa)) == null ? '' : __t) +
'</option>\n        <option ';
 if (chat_state === 'offline') { ;
__p += ' selected="selected" ';
 } ;
__p += '\n            value="offline">' +
((__t = (label_offline)) == null ? '' : __t) +
'</option>\n    </select>\n    <select class="filter-type">\n        <option ';
 if (filter_type === 'contacts') { ;
__p += ' selected="selected" ';
 } ;
__p += '\n                value="contacts">' +
((__t = (label_contacts)) == null ? '' : __t) +
'</option>\n        <option ';
 if (filter_type === 'groups') { ;
__p += ' selected="selected" ';
 } ;
__p += '\n                value="groups">' +
((__t = (label_groups)) == null ? '' : __t) +
'</option>\n        <option ';
 if (filter_type === 'state') { ;
__p += ' selected="selected" ';
 } ;
__p += '\n                value="state">' +
((__t = (label_state)) == null ? '' : __t) +
'</option>\n    </select>\n</form>\n';

}
return __p
};});


define('tpl!roster_item', ['lodash'], function(_) {return function(obj) {
obj || (obj = {});
var __t, __p = '', __e = _.escape, __j = Array.prototype.join;
function print() { __p += __j.call(arguments, '') }
with (obj) {
__p += '<a class="open-chat" title="' +
__e(title_fullname) +
': ' +
__e(fullname) +
'\nJID: ' +
__e(jid) +
'\n' +
__e(desc_chat) +
'" href="#"><span class="icon-' +
__e(chat_status) +
'" title="' +
__e(desc_status) +
'"></span>' +
__e(fullname) +
'</a>\n';
 if (allow_contact_removal) { ;
__p += '\n<a class="remove-xmpp-contact icon-remove" title="' +
__e(desc_remove) +
'" href="#"></a>\n';
 } ;
__p += '\n';

}
return __p
};});

// Converse.js (A browser based XMPP chat client)
// http://conversejs.org
//
// Copyright (c) 2012-2017, Jan-Carel Brand <jc@opkode.com>
// Licensed under the Mozilla Public License (MPLv2)
//
/*global define */

(function (root, factory) {
    define('converse-rosterview',["converse-core",
            "tpl!group_header",
            "tpl!pending_contact",
            "tpl!requesting_contact",
            "tpl!roster",
            "tpl!roster_filter",
            "tpl!roster_item"
    ], factory);
}(this, function (
            converse, 
            tpl_group_header,
            tpl_pending_contact,
            tpl_requesting_contact,
            tpl_roster,
            tpl_roster_filter,
            tpl_roster_item) {
    "use strict";
    var $ = converse.env.jQuery,
        Backbone = converse.env.Backbone,
        utils = converse.env.utils,
        Strophe = converse.env.Strophe,
        $iq = converse.env.$iq,
        b64_sha1 = converse.env.b64_sha1,
        _ = converse.env._;


    converse.plugins.add('converse-rosterview', {

        overrides: {
            // Overrides mentioned here will be picked up by converse.js's
            // plugin architecture they will replace existing methods on the
            // relevant objects or classes.
            //
            // New functions which don't exist yet can also be added.
            afterReconnected: function () {
                this.rosterview.registerRosterXHandler();
                this.__super__.afterReconnected.apply(this, arguments);
            },

            _tearDown: function () {
                /* Remove the rosterview when tearing down. It gets created
                 * anew when reconnecting or logging in.
                 */
                this.__super__._tearDown.apply(this, arguments);
                if (!_.isUndefined(this.rosterview)) {
                    this.rosterview.remove();
                }
            },

            RosterGroups: {
                comparator: function () {
                    // RosterGroupsComparator only gets set later (once i18n is
                    // set up), so we need to wrap it in this nameless function.
                    var _converse = this.__super__._converse;
                    return _converse.RosterGroupsComparator.apply(this, arguments);
                }
            }
        },


        initialize: function () {
            /* The initialize function gets called as soon as the plugin is
             * loaded by converse.js's plugin machinery.
             */
            var _converse = this._converse,
                __ = _converse.__;

            this.updateSettings({
                allow_chat_pending_contacts: true,
                allow_contact_removal: true,
                show_toolbar: true,
            });

            var STATUSES = {
                'dnd': __('This contact is busy'),
                'online': __('This contact is online'),
                'offline': __('This contact is offline'),
                'unavailable': __('This contact is unavailable'),
                'xa': __('This contact is away for an extended period'),
                'away': __('This contact is away')
            };
            var LABEL_CONTACTS = __('Contacts');
            var LABEL_GROUPS = __('Groups');
            var HEADER_CURRENT_CONTACTS =  __('My contacts');
            var HEADER_PENDING_CONTACTS = __('Pending contacts');
            var HEADER_REQUESTING_CONTACTS = __('Contact requests');
            var HEADER_UNGROUPED = __('Ungrouped');
            var HEADER_WEIGHTS = {};
            HEADER_WEIGHTS[HEADER_REQUESTING_CONTACTS] = 0;
            HEADER_WEIGHTS[HEADER_CURRENT_CONTACTS]    = 1;
            HEADER_WEIGHTS[HEADER_UNGROUPED]           = 2;
            HEADER_WEIGHTS[HEADER_PENDING_CONTACTS]    = 3;

            _converse.RosterGroupsComparator = function (a, b) {
                /* Groups are sorted alphabetically, ignoring case.
                 * However, Ungrouped, Requesting Contacts and Pending Contacts
                 * appear last and in that order.
                 */
                a = a.get('name');
                b = b.get('name');
                var special_groups = _.keys(HEADER_WEIGHTS);
                var a_is_special = _.includes(special_groups, a);
                var b_is_special = _.includes(special_groups, b);
                if (!a_is_special && !b_is_special ) {
                    return a.toLowerCase() < b.toLowerCase() ? -1 : (a.toLowerCase() > b.toLowerCase() ? 1 : 0);
                } else if (a_is_special && b_is_special) {
                    return HEADER_WEIGHTS[a] < HEADER_WEIGHTS[b] ? -1 : (HEADER_WEIGHTS[a] > HEADER_WEIGHTS[b] ? 1 : 0);
                } else if (!a_is_special && b_is_special) {
                    return (b === HEADER_REQUESTING_CONTACTS) ? 1 : -1;
                } else if (a_is_special && !b_is_special) {
                    return (a === HEADER_REQUESTING_CONTACTS) ? -1 : 1;
                }
            };


            _converse.RosterFilter = Backbone.Model.extend({
                initialize: function () {
                    this.set({
                        'filter_text': '',
                        'filter_type': 'contacts',
                        'chat_state': ''
                    });
                },
            });

            _converse.RosterFilterView = Backbone.View.extend({
                tagName: 'span',
                events: {
                    "keydown .roster-filter": "liveFilter",
                    "submit form.roster-filter-form": "submitFilter",
                    "click .onX": "clearFilter",
                    "mousemove .x": "toggleX",
                    "change .filter-type": "changeTypeFilter",
                    "change .state-type": "changeChatStateFilter"
                },

                initialize: function () {
                    this.model.on('change:filter_type', this.render, this);
                    this.model.on('change:filter_text', this.renderClearButton, this);
                },

                render: function () {
                    this.el.innerHTML = tpl_roster_filter(
                        _.extend(this.model.toJSON(), {
                            placeholder: __('Filter'),
                            label_contacts: LABEL_CONTACTS,
                            label_groups: LABEL_GROUPS,
                            label_state: __('State'),
                            label_any: __('Any'),
                            label_online: __('Online'),
                            label_chatty: __('Chatty'),
                            label_busy: __('Busy'),
                            label_away: __('Away'),
                            label_xa: __('Extended Away'),
                            label_offline: __('Offline')
                        }));
                    this.renderClearButton();
                    return this.$el;
                },

                renderClearButton: function () {
                    var roster_filter = this.el.querySelector('.roster-filter');
                    if (_.isNull(roster_filter)) {
                        return;
                    }
                    roster_filter.classList[this.tog(roster_filter.value)]('x');
                },

                tog: function (v) {
                    return v?'add':'remove';
                },

                toggleX: function (ev) {
                    if (ev && ev.preventDefault) { ev.preventDefault(); }
                    var el = ev.target;
                    el.classList[this.tog(el.offsetWidth-18 < ev.clientX-el.getBoundingClientRect().left)]('onX');
                },

                changeChatStateFilter: function (ev) {
                    if (ev && ev.preventDefault) { ev.preventDefault(); }
                    this.model.save({
                        'chat_state': this.el.querySelector('.state-type').value
                    });
                },

                changeTypeFilter: function (ev) {
                    if (ev && ev.preventDefault) { ev.preventDefault(); }
                    var type = ev.target.value;
                    if (type === 'state') {
                        this.model.save({
                            'filter_type': type,
                            'chat_state': this.el.querySelector('.state-type').value
                        });
                    } else {
                        this.model.save({
                            'filter_type': type,
                            'filter_text': this.el.querySelector('.roster-filter').value
                        });
                    }
                },

                liveFilter: _.debounce(function (ev) {
                    this.model.save({
                        'filter_type': this.el.querySelector('.filter-type').value,
                        'filter_text': this.el.querySelector('.roster-filter').value
                    });
                }, 250),

                submitFilter: function (ev) {
                    if (ev && ev.preventDefault) { ev.preventDefault(); }
                    this.liveFilter();
                    this.render();
                },

                isActive: function () {
                    /* Returns true if the filter is enabled (i.e. if the user
                     * has added values to the filter).
                     */
                    if (this.model.get('filter_type') === 'state' ||
                        this.model.get('filter_text')) {
                        return true;
                    }
                    return false;
                },

                show: function () {
                    if (this.$el.is(':visible')) { return this; }
                    this.$el.show();
                    return this;
                },

                hide: function () {
                    if (!this.$el.is(':visible')) { return this; }
                    if (this.el.querySelector('.roster-filter').value.length > 0) {
                        // Don't hide if user is currently filtering.
                        return;
                    }
                    this.model.save({
                        'filter_text': '',
                        'chat_state': ''
                    });
                    this.$el.hide();
                    return this;
                },

                clearFilter: function (ev) {
                    if (ev && ev.preventDefault) {
                        ev.preventDefault();
                        $(ev.target).removeClass('x onX').val('');
                    }
                    this.model.save({
                        'filter_text': ''
                    });
                }
            });

            _converse.RosterView = Backbone.Overview.extend({
                tagName: 'div',
                id: 'converse-roster',

                initialize: function () {
                    this.roster_handler_ref = this.registerRosterHandler();
                    this.rosterx_handler_ref = this.registerRosterXHandler();
                    _converse.roster.on("add", this.onContactAdd, this);
                    _converse.roster.on('change', this.onContactChange, this);
                    _converse.roster.on("destroy", this.update, this);
                    _converse.roster.on("remove", this.update, this);
                    this.model.on("add", this.onGroupAdd, this);
                    this.model.on("reset", this.reset, this);
                    _converse.on('rosterGroupsFetched', this.positionFetchedGroups, this);
                    _converse.on('rosterContactsFetched', this.update, this);
                    this.createRosterFilter();
                },

                render: function () {
                    this.renderRoster();
                    this.$el.html(this.filter_view.render());
                    if (!_converse.allow_contact_requests) {
                        // XXX: if we ever support live editing of config then
                        // we'll need to be able to remove this class on the fly.
                        this.el.classList.add('no-contact-requests');
                    }
                    return this;
                },

                renderRoster: function () {
                    this.$roster = $(tpl_roster());
                    this.roster = this.$roster[0];
                },

                createRosterFilter: function () {
                    // Create a model on which we can store filter properties
                    var model = new _converse.RosterFilter();
                    model.id = b64_sha1('_converse.rosterfilter'+_converse.bare_jid);
                    model.browserStorage = new Backbone.BrowserStorage.local(this.filter.id);
                    this.filter_view = new _converse.RosterFilterView({'model': model});
                    this.filter_view.model.on('change', this.updateFilter, this);
                    this.filter_view.model.fetch();
                },

                updateFilter: _.debounce(function () {
                    /* Filter the roster again.
                     * Called whenever the filter settings have been changed or
                     * when contacts have been added, removed or changed.
                     *
                     * Debounced so that it doesn't get called for every
                     * contact fetched from browser storage.
                     */
                    var type = this.filter_view.model.get('filter_type');
                    if (type === 'state') {
                        this.filter(this.filter_view.model.get('chat_state'), type);
                    } else {
                        this.filter(this.filter_view.model.get('filter_text'), type);
                    }
                }, 100),

                unregisterHandlers: function () {
                    _converse.connection.deleteHandler(this.roster_handler_ref);
                    delete this.roster_handler_ref;
                    _converse.connection.deleteHandler(this.rosterx_handler_ref);
                    delete this.rosterx_handler_ref;
                },

                update: _.debounce(function () {
                    if (_.isNull(this.roster.parentElement)) {
                        this.$el.append(this.$roster.show());
                    }
                    return this.showHideFilter();
                }, _converse.animate ? 100 : 0),

                showHideFilter: function () {
                    if (!this.$el.is(':visible')) {
                        return;
                    }
                    if (this.$roster.hasScrollBar()) {
                        this.filter_view.show();
                    } else if (!this.filter_view.isActive()) {
                        this.filter_view.hide();
                    }
                    return this;
                },

                filter: function (query, type) {
                    // First we make sure the filter is restored to its
                    // original state
                    _.each(this.getAll(), function (view) {
                        if (view.model.contacts.length > 0) {
                            view.show().filter('');
                        }
                    });
                    // Now we can filter
                    query = query.toLowerCase();
                    if (type === 'groups') {
                        _.each(this.getAll(), function (view, idx) {
                            if (!_.includes(view.model.get('name').toLowerCase(), query.toLowerCase())) {
                                view.hide();
                            } else if (view.model.contacts.length > 0) {
                                view.show();
                            }
                        });
                    } else {
                        _.each(this.getAll(), function (view) {
                            view.filter(query, type);
                        });
                    }
                },

                reset: function () {
                    _converse.roster.reset();
                    this.removeAll();
                    this.renderRoster();
                    this.render().update();
                    return this;
                },

                registerRosterHandler: function () {
                    _converse.connection.addHandler(
                        _converse.roster.onRosterPush.bind(_converse.roster),
                        Strophe.NS.ROSTER, 'iq', "set"
                    );
                },

                registerRosterXHandler: function () {
                    var t = 0;
                    _converse.connection.addHandler(
                        function (msg) {
                            window.setTimeout(
                                function () {
                                    _converse.connection.flush();
                                    _converse.roster.subscribeToSuggestedItems.bind(_converse.roster)(msg);
                                },
                                t
                            );
                            t += $(msg).find('item').length*250;
                            return true;
                        },
                        Strophe.NS.ROSTERX, 'message', null
                    );
                },

                onGroupAdd: function (group) {
                    var view = new _converse.RosterGroupView({model: group});
                    this.add(group.get('name'), view.render());
                    this.positionGroup(view);
                },

                onContactAdd: function (contact) {
                    this.addRosterContact(contact).update();
                    this.updateFilter();
                },

                onContactChange: function (contact) {
                    this.updateChatBox(contact).update();
                    if (_.has(contact.changed, 'subscription')) {
                        if (contact.changed.subscription === 'from') {
                            this.addContactToGroup(contact, HEADER_PENDING_CONTACTS);
                        } else if (_.includes(['both', 'to'], contact.get('subscription'))) {
                            this.addExistingContact(contact);
                        }
                    }
                    if (_.has(contact.changed, 'ask') && contact.changed.ask === 'subscribe') {
                        this.addContactToGroup(contact, HEADER_PENDING_CONTACTS);
                    }
                    if (_.has(contact.changed, 'subscription') && contact.changed.requesting === 'true') {
                        this.addContactToGroup(contact, HEADER_REQUESTING_CONTACTS);
                    }
                    this.updateFilter();
                },

                updateChatBox: function (contact) {
                    var chatbox = _converse.chatboxes.get(contact.get('jid')),
                        changes = {};
                    if (!chatbox) {
                        return this;
                    }
                    if (_.has(contact.changed, 'chat_status')) {
                        changes.chat_status = contact.get('chat_status');
                    }
                    if (_.has(contact.changed, 'status')) {
                        changes.status = contact.get('status');
                    }
                    chatbox.save(changes);
                    return this;
                },

                positionFetchedGroups: function () {
                    /* Instead of throwing an add event for each group
                     * fetched, we wait until they're all fetched and then
                     * we position them.
                     * Works around the problem of positionGroup not
                     * working when all groups besides the one being
                     * positioned aren't already in inserted into the
                     * roster DOM element.
                     */
                    var that = this;
                    this.model.sort();
                    this.model.each(function (group, idx) {
                        var view = that.get(group.get('name'));
                        if (!view) {
                            view = new _converse.RosterGroupView({model: group});
                            that.add(group.get('name'), view.render());
                        }
                        if (idx === 0) {
                            that.$roster.append(view.$el);
                        } else {
                            that.appendGroup(view);
                        }
                    });
                },

                positionGroup: function (view) {
                    /* Place the group's DOM element in the correct alphabetical
                     * position amongst the other groups in the roster.
                     */
                    var $groups = this.$roster.find('.roster-group'),
                        index = $groups.length ? this.model.indexOf(view.model) : 0;
                    if (index === 0) {
                        this.$roster.prepend(view.$el);
                    } else if (index === (this.model.length-1)) {
                        this.appendGroup(view);
                    } else {
                        $($groups.eq(index)).before(view.$el);
                    }
                    return this;
                },

                appendGroup: function (view) {
                    /* Add the group at the bottom of the roster
                     */
                    var $last = this.$roster.find('.roster-group').last();
                    var $siblings = $last.siblings('dd');
                    if ($siblings.length > 0) {
                        $siblings.last().after(view.$el);
                    } else {
                        $last.after(view.$el);
                    }
                    return this;
                },

                getGroup: function (name) {
                    /* Returns the group as specified by name.
                     * Creates the group if it doesn't exist.
                     */
                    var view =  this.get(name);
                    if (view) {
                        return view.model;
                    }
                    return this.model.create({name: name, id: b64_sha1(name)});
                },

                addContactToGroup: function (contact, name) {
                    this.getGroup(name).contacts.add(contact);
                },

                addExistingContact: function (contact) {
                    var groups;
                    if (_converse.roster_groups) {
                        groups = contact.get('groups');
                        if (groups.length === 0) {
                            groups = [HEADER_UNGROUPED];
                        }
                    } else {
                        groups = [HEADER_CURRENT_CONTACTS];
                    }
                    _.each(groups, _.bind(this.addContactToGroup, this, contact));
                },

                addRosterContact: function (contact) {
                    if (contact.get('subscription') === 'both' || contact.get('subscription') === 'to') {
                        this.addExistingContact(contact);
                    } else {
                        if ((contact.get('ask') === 'subscribe') || (contact.get('subscription') === 'from')) {
                            this.addContactToGroup(contact, HEADER_PENDING_CONTACTS);
                        } else if (contact.get('requesting') === true) {
                            this.addContactToGroup(contact, HEADER_REQUESTING_CONTACTS);
                        }
                    }
                    return this;
                }
            });


            _converse.RosterContactView = Backbone.View.extend({
                tagName: 'dd',

                events: {
                    "click .accept-xmpp-request": "acceptRequest",
                    "click .decline-xmpp-request": "declineRequest",
                    "click .open-chat": "openChat",
                    "click .remove-xmpp-contact": "removeContact"
                },

                initialize: function () {
                    this.model.on("change", this.render, this);
                    this.model.on("remove", this.remove, this);
                    this.model.on("destroy", this.remove, this);
                    this.model.on("open", this.openChat, this);
                },

                render: function () {
                    var that = this;
                    if (!this.mayBeShown()) {
                        this.$el.hide();
                        return this;
                    }
                    var item = this.model,
                        ask = item.get('ask'),
                        chat_status = item.get('chat_status'),
                        requesting  = item.get('requesting'),
                        subscription = item.get('subscription');

                    var classes_to_remove = [
                        'current-xmpp-contact',
                        'pending-xmpp-contact',
                        'requesting-xmpp-contact'
                        ].concat(_.keys(STATUSES));

                    _.each(classes_to_remove,
                        function (cls) {
                            if (_.includes(that.el.className, cls)) {
                                that.el.classList.remove(cls);
                            }
                        });
                    this.$el.addClass(chat_status).data('status', chat_status);

                    if ((ask === 'subscribe') || (subscription === 'from')) {
                        /* ask === 'subscribe'
                         *      Means we have asked to subscribe to them.
                         *
                         * subscription === 'from'
                         *      They are subscribed to use, but not vice versa.
                         *      We assume that there is a pending subscription
                         *      from us to them (otherwise we're in a state not
                         *      supported by converse.js).
                         *
                         *  So in both cases the user is a "pending" contact.
                         */
                        this.el.classList.add('pending-xmpp-contact');
                        this.$el.html(tpl_pending_contact(
                            _.extend(item.toJSON(), {
                                'desc_remove': __('Click to remove this contact'),
                                'allow_chat_pending_contacts': _converse.allow_chat_pending_contacts
                            })
                        ));
                    } else if (requesting === true) {
                        this.el.classList.add('requesting-xmpp-contact');
                        this.$el.html(tpl_requesting_contact(
                            _.extend(item.toJSON(), {
                                'desc_accept': __("Click to accept this contact request"),
                                'desc_decline': __("Click to decline this contact request"),
                                'allow_chat_pending_contacts': _converse.allow_chat_pending_contacts
                            })
                        ));
                    } else if (subscription === 'both' || subscription === 'to') {
                        this.el.classList.add('current-xmpp-contact');
                        this.$el.removeClass(_.without(['both', 'to'], subscription)[0]).addClass(subscription);
                        this.$el.html(tpl_roster_item(
                            _.extend(item.toJSON(), {
                                'desc_status': STATUSES[chat_status||'offline'],
                                'desc_chat': __('Click to chat with this contact'),
                                'desc_remove': __('Click to remove this contact'),
                                'title_fullname': __('Name'),
                                'allow_contact_removal': _converse.allow_contact_removal
                            })
                        ));
                    }
                    return this;
                },

                isGroupCollapsed: function () {
                    /* Check whether the group in which this contact appears is
                     * collapsed.
                     */
                    // XXX: this sucks and is fragile.
                    // It's because I tried to do the "right thing"
                    // and use definition lists to represent roster groups.
                    // If roster group items were inside the group elements, we
                    // would simplify things by not having to check whether the
                    // group is collapsed or not.
                    var name = this.$el.prevAll('dt:first').data('group');
                    var group = _.head(_converse.rosterview.model.where({'name': name.toString()}));
                    if (group.get('state') === _converse.CLOSED) {
                        return true;
                    }
                    return false;
                },

                mayBeShown: function () {
                    /* Return a boolean indicating whether this contact should
                     * generally be visible in the roster.
                     *
                     * It doesn't check for the more specific case of whether
                     * the group it's in is collapsed (see isGroupCollapsed).
                     */
                    var chatStatus = this.model.get('chat_status');
                    if ((_converse.show_only_online_users && chatStatus !== 'online') ||
                        (_converse.hide_offline_users && chatStatus === 'offline')) {
                        // If pending or requesting, show
                        if ((this.model.get('ask') === 'subscribe') ||
                                (this.model.get('subscription') === 'from') ||
                                (this.model.get('requesting') === true)) {
                            return true;
                        }
                        return false;
                    }
                    return true;
                },

                openChat: function (ev) {
                    if (ev && ev.preventDefault) { ev.preventDefault(); }
                    return _converse.chatboxviews.showChat(this.model.attributes);
                },

                removeContact: function (ev) {
                    if (ev && ev.preventDefault) { ev.preventDefault(); }
                    if (!_converse.allow_contact_removal) { return; }
                    var result = confirm(__("Are you sure you want to remove this contact?"));
                    if (result === true) {
                        var iq = $iq({type: 'set'})
                            .c('query', {xmlns: Strophe.NS.ROSTER})
                            .c('item', {jid: this.model.get('jid'), subscription: "remove"});
                        _converse.connection.sendIQ(iq,
                            function (iq) {
                                this.model.destroy();
                                this.remove();
                            }.bind(this),
                            function (err) {
                                alert(__("Sorry, there was an error while trying to remove "+name+" as a contact."));
                                _converse.log(err);
                            }
                        );
                    }
                },

                acceptRequest: function (ev) {
                    if (ev && ev.preventDefault) { ev.preventDefault(); }
                    _converse.roster.sendContactAddIQ(
                        this.model.get('jid'),
                        this.model.get('fullname'),
                        [],
                        function () { this.model.authorize().subscribe(); }.bind(this)
                    );
                },

                declineRequest: function (ev) {
                    if (ev && ev.preventDefault) { ev.preventDefault(); }
                    var result = confirm(__("Are you sure you want to decline this contact request?"));
                    if (result === true) {
                        this.model.unauthorize().destroy();
                    }
                    return this;
                }
            });


            _converse.RosterGroupView = Backbone.Overview.extend({
                tagName: 'dt',
                className: 'roster-group',
                events: {
                    "click a.group-toggle": "toggle"
                },

                initialize: function () {
                    this.model.contacts.on("add", this.addContact, this);
                    this.model.contacts.on("change:subscription", this.onContactSubscriptionChange, this);
                    this.model.contacts.on("change:requesting", this.onContactRequestChange, this);
                    this.model.contacts.on("change:chat_status", function (contact) {
                        // This might be optimized by instead of first sorting,
                        // finding the correct position in positionContact
                        this.model.contacts.sort();
                        this.positionContact(contact).render();
                    }, this);
                    this.model.contacts.on("destroy", this.onRemove, this);
                    this.model.contacts.on("remove", this.onRemove, this);
                    _converse.roster.on('change:groups', this.onContactGroupChange, this);
                },

                render: function () {
                    this.el.setAttribute('data-group', this.model.get('name'));
                    var html = tpl_group_header({
                        label_group: this.model.get('name'),
                        desc_group_toggle: this.model.get('description'),
                        toggle_state: this.model.get('state')
                    });
                    this.el.innerHTML = html;
                    return this;
                },

                addContact: function (contact) {
                    var view = new _converse.RosterContactView({model: contact});
                    this.add(contact.get('id'), view);
                    view = this.positionContact(contact).render();
                    if (view.mayBeShown()) {
                        if (this.model.get('state') === _converse.CLOSED) {
                            if (view.$el[0].style.display !== "none") { view.$el.hide(); }
                            if (!this.$el.is(':visible')) { this.$el.show(); }
                        } else {
                            if (this.$el[0].style.display !== "block") { this.show(); }
                        }
                    }
                },

                positionContact: function (contact) {
                    /* Place the contact's DOM element in the correct alphabetical
                     * position amongst the other contacts in this group.
                     */
                    var view = this.get(contact.get('id'));
                    var index = this.model.contacts.indexOf(contact);
                    view.$el.detach();
                    if (index === 0) {
                        this.$el.after(view.$el);
                    } else if (index === (this.model.contacts.length-1)) {
                        this.$el.nextUntil('dt').last().after(view.$el);
                    } else {
                        this.$el.nextUntil('dt').eq(index).before(view.$el);
                    }
                    return view;
                },

                show: function () {
                    this.$el.show();
                    _.each(this.getAll(), function (view) {
                        if (view.mayBeShown() && !view.isGroupCollapsed()) {
                            view.$el.show();
                        }
                    });
                    return this;
                },

                hide: function () {
                    this.$el.nextUntil('dt').addBack().hide();
                },

                filter: function (q, type) {
                    /* Filter the group's contacts based on the query "q".
                     * The query is matched against the contact's full name.
                     * If all contacts are filtered out (i.e. hidden), then the
                     * group must be filtered out as well.
                     */
                    var matches;
                    if (q.length === 0) {
                        if (this.model.get('state') === _converse.OPENED) {
                            this.model.contacts.each(function (item) {
                                var view = this.get(item.get('id'));
                                if (view.mayBeShown() && !view.isGroupCollapsed()) {
                                    view.$el.show();
                                }
                            }.bind(this));
                        }
                        this.showIfNecessary();
                    } else {
                        q = q.toLowerCase();
                        if (type === 'state') {
                            if (this.model.get('name') === HEADER_REQUESTING_CONTACTS) {
                                // When filtering by chat state, we still want to
                                // show requesting contacts, even though they don't
                                // have the state in question.
                                matches = this.model.contacts.filter(
                                    function (contact) {
                                        return utils.contains.not('chat_status', q)(contact) && !contact.get('requesting');
                                    }
                                );
                            } else {
                                matches = this.model.contacts.filter(
                                    utils.contains.not('chat_status', q)
                                );
                            }
                        } else  {
                            matches = this.model.contacts.filter(
                                utils.contains.not('fullname', q)
                            );
                        }
                        if (matches.length === this.model.contacts.length) {
                            // hide the whole group
                            this.hide();
                        } else {
                            _.each(matches, function (item) {
                                this.get(item.get('id')).$el.hide();
                            }.bind(this));
                            _.each(this.model.contacts.reject(utils.contains.not('fullname', q)), function (item) {
                                this.get(item.get('id')).$el.show();
                            }.bind(this));
                            this.showIfNecessary();
                        }
                    }
                },

                showIfNecessary: function () {
                    if (!this.$el.is(':visible') && this.model.contacts.length > 0) {
                        this.$el.show();
                    }
                },

                toggle: function (ev) {
                    if (ev && ev.preventDefault) { ev.preventDefault(); }
                    var $el = $(ev.target);
                    if ($el.hasClass("icon-opened")) {
                        this.$el.nextUntil('dt').slideUp();
                        this.model.save({state: _converse.CLOSED});
                        $el.removeClass("icon-opened").addClass("icon-closed");
                    } else {
                        $el.removeClass("icon-closed").addClass("icon-opened");
                        this.model.save({state: _converse.OPENED});
                        this.filter(
                            _converse.rosterview.$('.roster-filter').val() || '',
                            _converse.rosterview.$('.filter-type').val()
                        );
                    }
                },

                onContactGroupChange: function (contact) {
                    var in_this_group = _.includes(contact.get('groups'), this.model.get('name'));
                    var cid = contact.get('id');
                    var in_this_overview = !this.get(cid);
                    if (in_this_group && !in_this_overview) {
                        this.model.contacts.remove(cid);
                    } else if (!in_this_group && in_this_overview) {
                        this.addContact(contact);
                    }
                },

                onContactSubscriptionChange: function (contact) {
                    if ((this.model.get('name') === HEADER_PENDING_CONTACTS) && contact.get('subscription') !== 'from') {
                        this.model.contacts.remove(contact.get('id'));
                    }
                },

                onContactRequestChange: function (contact) {
                    if ((this.model.get('name') === HEADER_REQUESTING_CONTACTS) && !contact.get('requesting')) {
                        /* We suppress events, otherwise the remove event will
                         * also cause the contact's view to be removed from the
                         * "Pending Contacts" group.
                         */
                        this.model.contacts.remove(contact.get('id'), {'silent': true});
                        // Since we suppress events, we make sure the view and
                        // contact are removed from this group.
                        this.get(contact.get('id')).remove();
                        this.onRemove(contact);
                    }
                },

                onRemove: function (contact) {
                    this.remove(contact.get('id'));
                    if (this.model.contacts.length === 0) {
                        this.$el.hide();
                    }
                }
            });

            /* -------- Event Handlers ----------- */

            var initRoster = function () {
                /* Create an instance of RosterView once the RosterGroups
                 * collection has been created (in converse-core.js)
                 */
                _converse.rosterview = new _converse.RosterView({
                    'model': _converse.rostergroups
                });
                _converse.rosterview.render();
            };
            _converse.on('rosterInitialized', initRoster);
            _converse.on('rosterReadyAfterReconnection', initRoster);
        }
    });
}));

// Converse.js (A browser based XMPP chat client)
// http://conversejs.org
//
// Copyright (c) 2012-2017, Jan-Carel Brand <jc@opkode.com>
// Licensed under the Mozilla Public License (MPLv2)
//
/*global define */

(function (root, factory) {
    define('converse-controlbox',["converse-core",
            "tpl!add_contact_dropdown",
            "tpl!add_contact_form",
            "tpl!change_status_message",
            "tpl!chat_status",
            "tpl!choose_status",
            "tpl!contacts_panel",
            "tpl!contacts_tab",
            "tpl!controlbox",
            "tpl!controlbox_toggle",
            "tpl!login_panel",
            "tpl!login_tab",
            "tpl!search_contact",
            "tpl!status_option",
            "converse-chatview",
            "converse-rosterview"
    ], factory);
}(this, function (
            converse,
            tpl_add_contact_dropdown,
            tpl_add_contact_form,
            tpl_change_status_message,
            tpl_chat_status,
            tpl_choose_status,
            tpl_contacts_panel,
            tpl_contacts_tab,
            tpl_controlbox,
            tpl_controlbox_toggle,
            tpl_login_panel,
            tpl_login_tab,
            tpl_search_contact,
            tpl_status_option
        ) {
    "use strict";

    var USERS_PANEL_ID = 'users';
    // Strophe methods for building stanzas
    var Strophe = converse.env.Strophe,
        Backbone = converse.env.Backbone,
        utils = converse.env.utils;
    // Other necessary globals
    var $ = converse.env.jQuery,
        _ = converse.env._,
        moment = converse.env.moment;


    converse.plugins.add('converse-controlbox', {

        overrides: {
            // Overrides mentioned here will be picked up by converse.js's
            // plugin architecture they will replace existing methods on the
            // relevant objects or classes.
            //
            // New functions which don't exist yet can also be added.

            initSession: function () {
                this.controlboxtoggle = new this.ControlBoxToggle();
                this.__super__.initSession.apply(this, arguments);
            },

            initConnection: function () {
                this.__super__.initConnection.apply(this, arguments);
                if (this.connection) {
                    this.addControlBox();
                }
            },

            _tearDown: function () {
                this.__super__._tearDown.apply(this, arguments);
                if (this.rosterview) {
                    this.rosterview.unregisterHandlers();
                    // Removes roster groups
                    this.rosterview.model.off().reset();
                    this.rosterview.each(function (groupview) {
                        groupview.removeAll();
                        groupview.remove();
                    });
                    this.rosterview.removeAll().remove();
                }
            },

            clearSession: function () {
                this.__super__.clearSession.apply(this, arguments);
                if (_.isUndefined(this.connection) && this.connection.connected) {
                    this.chatboxes.get('controlbox').save({'connected': false});
                }
            },

            ChatBoxes: {
                chatBoxMayBeShown: function (chatbox) {
                    return this.__super__.chatBoxMayBeShown.apply(this, arguments) &&
                           chatbox.get('id') !== 'controlbox';
                },

                onChatBoxesFetched: function (collection, resp) {
                    var _converse = this.__super__._converse;
                    this.__super__.onChatBoxesFetched.apply(this, arguments);
                    if (!_.includes(_.map(collection, 'id'), 'controlbox')) {
                        _converse.addControlBox();
                    }
                    this.get('controlbox').save({connected:true});
                },
            },

            ChatBoxViews: {
                onChatBoxAdded: function (item) {
                    var _converse = this.__super__._converse;
                    if (item.get('box_id') === 'controlbox') {
                        var view = this.get(item.get('id'));
                        if (view) {
                            view.model = item;
                            view.initialize();
                            return view;
                        } else {
                            view = new _converse.ControlBoxView({model: item});
                            return this.add(item.get('id'), view);
                        }
                    } else {
                        return this.__super__.onChatBoxAdded.apply(this, arguments);
                    }
                },

                closeAllChatBoxes: function () {
                    var _converse = this.__super__._converse;
                    this.each(function (view) {
                        if (view.model.get('id') === 'controlbox' &&
                                (_converse.disconnection_cause !== _converse.LOGOUT || _converse.show_controlbox_by_default)) {
                            return;
                        }
                        view.close();
                    });
                    return this;
                },

                getChatBoxWidth: function (view) {
                    var _converse = this.__super__._converse;
                    var controlbox = this.get('controlbox');
                    if (view.model.get('id') === 'controlbox') {
                        /* We return the width of the controlbox or its toggle,
                         * depending on which is visible.
                         */
                        if (!controlbox || !controlbox.$el.is(':visible')) {
                            return _converse.controlboxtoggle.$el.outerWidth(true);
                        } else {
                            return controlbox.$el.outerWidth(true);
                        }
                    } else {
                        return this.__super__.getChatBoxWidth.apply(this, arguments);
                    }
                }
            },


            ChatBox: {
                initialize: function () {
                    if (this.get('id') === 'controlbox') {
                        this.set({
                            'time_opened': moment(0).valueOf(),
                            'num_unread': 0
                        });
                    } else {
                        this.__super__.initialize.apply(this, arguments);
                    }
                },
            },


            ChatBoxView: {
                insertIntoDOM: function () {
                    var _converse = this.__super__._converse;
                    this.$el.insertAfter(_converse.chatboxviews.get("controlbox").$el);
                    return this;
                }
            }
        },

        initialize: function () {
            /* The initialize function gets called as soon as the plugin is
             * loaded by converse.js's plugin machinery.
             */
            var _converse = this._converse,
                __ = _converse.__;

            this.updateSettings({
                allow_logout: true,
                default_domain: undefined,
                show_controlbox_by_default: false,
                sticky_controlbox: false,
                xhr_user_search: false,
                xhr_user_search_url: ''
            });

            var LABEL_CONTACTS = __('Contacts');

            _converse.addControlBox = function () {
                return _converse.chatboxes.add({
                    id: 'controlbox',
                    box_id: 'controlbox',
                    closed: !_converse.show_controlbox_by_default
                });
            };

            _converse.ControlBoxView = _converse.ChatBoxView.extend({
                tagName: 'div',
                className: 'chatbox',
                id: 'controlbox',
                events: {
                    'click a.close-chatbox-button': 'close',
                    'click ul#controlbox-tabs li a': 'switchTab',
                },

                initialize: function () {
                    this.$el.insertAfter(_converse.controlboxtoggle.$el);
                    this.model.on('change:connected', this.onConnected, this);
                    this.model.on('destroy', this.hide, this);
                    this.model.on('hide', this.hide, this);
                    this.model.on('show', this.show, this);
                    this.model.on('change:closed', this.ensureClosedState, this);
                    this.render();
                    if (this.model.get('connected')) {
                        this.insertRoster();
                    }
                },

                render: function () {
                    if (this.model.get('connected')) {
                        if (_.isUndefined(this.model.get('closed'))) {
                            this.model.set('closed', !_converse.show_controlbox_by_default);
                        }
                    }
                    if (!this.model.get('closed')) {
                        this.show();
                    } else {
                        this.hide();
                    }
                    this.$el.html(tpl_controlbox(
                        _.extend(this.model.toJSON(), {
                            sticky_controlbox: _converse.sticky_controlbox
                        }))
                    );
                    if (!_converse.connection.connected || !_converse.connection.authenticated || _converse.connection.disconnecting) {
                        this.renderLoginPanel();
                    } else if (!this.contactspanel || !this.contactspanel.$el.is(':visible')) {
                        this.renderContactsPanel();
                    }
                    return this;
                },

                onConnected: function () {
                    if (this.model.get('connected')) {
                        this.render().insertRoster();
                        this.model.save();
                    }
                },

                insertRoster: function () {
                    /* Place the rosterview inside the "Contacts" panel.
                     */
                    this.contactspanel.$el.append(_converse.rosterview.$el);
                    return this;
                },

                renderLoginPanel: function () {
                    this.loginpanel = new _converse.LoginPanel({
                        '$parent': this.$el.find('.controlbox-panes'),
                        'model': this
                    });
                    this.loginpanel.render();
                    return this;
                },

                renderContactsPanel: function () {
                    if (_.isUndefined(this.model.get('active-panel'))) {
                        this.model.save({'active-panel': USERS_PANEL_ID});
                    }
                    this.contactspanel = new _converse.ContactsPanel({
                        '$parent': this.$el.find('.controlbox-panes')
                    });
                    this.contactspanel.render();
                    _converse.xmppstatusview = new _converse.XMPPStatusView({
                        'model': _converse.xmppstatus
                    });
                    _converse.xmppstatusview.render();
                },

                close: function (ev) {
                    if (ev && ev.preventDefault) { ev.preventDefault(); }
                    if (_converse.connection.connected && !_converse.connection.disconnecting) {
                        this.model.save({'closed': true});
                    } else {
                        this.model.trigger('hide');
                    }
                    _converse.emit('controlBoxClosed', this);
                    return this;
                },

                ensureClosedState: function () {
                    if (this.model.get('closed')) {
                        this.hide();
                    } else {
                        this.show();
                    }
                },

                hide: function (callback) {
                    this.$el.addClass('hidden');
                    utils.refreshWebkit();
                    _converse.emit('chatBoxClosed', this);
                    if (!_converse.connection.connected) {
                        _converse.controlboxtoggle.render();
                    }
                    _converse.controlboxtoggle.show(callback);
                    return this;
                },

                onControlBoxToggleHidden: function () {
                    var that = this;
                    utils.fadeIn(this.el, function () {
                        _converse.controlboxtoggle.updateOnlineCount();
                        utils.refreshWebkit();
                        that.model.set('closed', false);
                        _converse.emit('controlBoxOpened', that);
                    });
                },

                show: function () {
                    _converse.controlboxtoggle.hide(
                        this.onControlBoxToggleHidden.bind(this)
                    );
                    return this;
                },

                switchTab: function (ev) {
                    // TODO: automatically focus the relevant input
                    if (ev && ev.preventDefault) { ev.preventDefault(); }
                    var $tab = $(ev.target),
                        $sibling = $tab.parent().siblings('li').children('a'),
                        $tab_panel = $($tab.attr('href'));
                    $($sibling.attr('href')).addClass('hidden');
                    $sibling.removeClass('current');
                    $tab.addClass('current');
                    $tab_panel.removeClass('hidden');
                    if (!_.isUndefined(_converse.chatboxes.browserStorage)) {
                        this.model.save({'active-panel': $tab.data('id')});
                    }
                    return this;
                },

                showHelpMessages: function () {
                    /* Override showHelpMessages in ChatBoxView, for now do nothing.
                     *
                     * Parameters:
                     *  (Array) msgs: Array of messages
                     */
                    return;
                }
            });


            _converse.LoginPanel = Backbone.View.extend({
                tagName: 'div',
                id: "login-dialog",
                className: 'controlbox-pane',
                events: {
                    'submit form#converse-login': 'authenticate'
                },

                initialize: function (cfg) {
                    cfg.$parent.html(this.$el.html(
                        tpl_login_panel({
                            'ANONYMOUS': _converse.ANONYMOUS,
                            'EXTERNAL': _converse.EXTERNAL,
                            'LOGIN': _converse.LOGIN,
                            'PREBIND': _converse.PREBIND,
                            'auto_login': _converse.auto_login,
                            'authentication': _converse.authentication,
                            'label_username': __('XMPP Username:'),
                            'label_password': __('Password:'),
                            'label_anon_login': __('Click here to log in anonymously'),
                            'label_login': __('Log In'),
                            'placeholder_username': (_converse.locked_domain || _converse.default_domain) && __('Username') || __('user@server'),
                            'placeholder_password': __('password')
                        })
                    ));
                    this.$tabs = cfg.$parent.parent().find('#controlbox-tabs');
                },

                render: function () {
                    this.$tabs.append(tpl_login_tab({label_sign_in: __('Sign in')}));
                    this.$el.find('input#jid').focus();
                    if (!this.$el.is(':visible')) {
                        this.$el.show();
                    }
                    return this;
                },

                authenticate: function (ev) {
                    if (ev && ev.preventDefault) { ev.preventDefault(); }
                    var $form = $(ev.target);
                    if (_converse.authentication === _converse.ANONYMOUS) {
                        this.connect($form, _converse.jid, null);
                        return;
                    }
                    var $jid_input = $form.find('input[name=jid]'),
                        jid = $jid_input.val(),
                        $pw_input = $form.find('input[name=password]'),
                        password = $pw_input.val(),
                        errors = false;

                    if (!jid) {
                        errors = true;
                        $jid_input.addClass('error');
                    }
                    if (!password && _converse.authentication !== _converse.EXTERNAL)  {
                        errors = true;
                        $pw_input.addClass('error');
                    }
                    if (errors) { return; }
                    if (_converse.locked_domain) {
                        jid = Strophe.escapeNode(jid) + '@' + _converse.locked_domain;
                    } else if (_converse.default_domain && !_.includes(jid, '@')) {
                        jid = jid + '@' + _converse.default_domain;
                    }
                    this.connect($form, jid, password);
                    return false;
                },

                connect: function ($form, jid, password) {
                    var resource;
                    if ($form) {
                        $form.find('input[type=submit]').hide().after('<span class="spinner login-submit"/>');
                    }
                    if (jid) {
                        resource = Strophe.getResourceFromJid(jid);
                        if (!resource) {
                            jid = jid.toLowerCase() + _converse.generateResource();
                        } else {
                            jid = Strophe.getBareJidFromJid(jid).toLowerCase()+'/'+resource;
                        }
                    }
                    _converse.connection.reset();
                    _converse.connection.connect(jid, password, _converse.onConnectStatusChanged);
                },

                remove: function () {
                    this.$tabs.empty();
                    this.$el.parent().empty();
                }
            });


            _converse.XMPPStatusView = Backbone.View.extend({
                el: "span#xmpp-status-holder",

                events: {
                    "click a.choose-xmpp-status": "toggleOptions",
                    "click #fancy-xmpp-status-select a.change-xmpp-status-message": "renderStatusChangeForm",
                    "submit #set-custom-xmpp-status": "setStatusMessage",
                    "click .dropdown dd ul li a": "setStatus"
                },

                initialize: function () {
                    this.model.on("change:status", this.updateStatusUI, this);
                    this.model.on("change:status_message", this.updateStatusUI, this);
                    this.model.on("update-status-ui", this.updateStatusUI, this);
                },

                render: function () {
                    // Replace the default dropdown with something nicer
                    var $select = this.$el.find('select#select-xmpp-status'),
                        chat_status = this.model.get('status') || 'offline',
                        options = $('option', $select),
                        $options_target,
                        options_list = [];
                    this.$el.html(tpl_choose_status());
                    this.$el.find('#fancy-xmpp-status-select')
                            .html(tpl_chat_status({
                                'status_message': this.model.get('status_message') || __("I am %1$s", this.getPrettyStatus(chat_status)),
                                'chat_status': chat_status,
                                'desc_custom_status': __('Click here to write a custom status message'),
                                'desc_change_status': __('Click to change your chat status')
                                }));
                    // iterate through all the <option> elements and add option values
                    options.each(function () {
                        options_list.push(tpl_status_option({
                            'value': $(this).val(),
                            'text': this.text
                        }));
                    });
                    $options_target = this.$el.find("#target dd ul").hide();
                    $options_target.append(options_list.join(''));
                    $select.remove();
                    return this;
                },

                toggleOptions: function (ev) {
                    ev.preventDefault();
                    $(ev.target).parent().parent().siblings('dd').find('ul').toggle('fast');
                },

                renderStatusChangeForm: function (ev) {
                    ev.preventDefault();
                    var status_message = _converse.xmppstatus.get('status_message') || '';
                    var input = tpl_change_status_message({
                        'status_message': status_message,
                        'label_custom_status': __('Custom status'),
                        'label_save': __('Save')
                    });
                    var $xmppstatus = this.$el.find('.xmpp-status');
                    $xmppstatus.parent().addClass('no-border');
                    $xmppstatus.replaceWith(input);
                    this.$el.find('.custom-xmpp-status').focus().focus();
                },

                setStatusMessage: function (ev) {
                    ev.preventDefault();
                    this.model.setStatusMessage($(ev.target).find('input').val());
                },

                setStatus: function (ev) {
                    ev.preventDefault();
                    var $el = $(ev.currentTarget),
                        value = $el.attr('data-value');
                    if (value === 'logout') {
                        this.$el.find(".dropdown dd ul").hide();
                        _converse.logOut();
                    } else {
                        this.model.setStatus(value);
                        this.$el.find(".dropdown dd ul").hide();
                    }
                },

                getPrettyStatus: function (stat) {
                    if (stat === 'chat') {
                        return __('online');
                    } else if (stat === 'dnd') {
                        return __('busy');
                    } else if (stat === 'xa') {
                        return __('away for long');
                    } else if (stat === 'away') {
                        return __('away');
                    } else if (stat === 'offline') {
                        return __('offline');
                    } else {
                        return __(stat) || __('online');
                    }
                },

                updateStatusUI: function (model) {
                    var stat = model.get('status');
                    // For translators: the %1$s part gets replaced with the status
                    // Example, I am online
                    var status_message = model.get('status_message') || __("I am %1$s", this.getPrettyStatus(stat));
                    this.$el.find('#fancy-xmpp-status-select').removeClass('no-border').html(
                        tpl_chat_status({
                            'chat_status': stat,
                            'status_message': status_message,
                            'desc_custom_status': __('Click here to write a custom status message'),
                            'desc_change_status': __('Click to change your chat status')
                        }));
                }
            });


            _converse.ContactsPanel = Backbone.View.extend({
                tagName: 'div',
                className: 'controlbox-pane',
                id: 'users',
                events: {
                    'click a.toggle-xmpp-contact-form': 'toggleContactForm',
                    'submit form.add-xmpp-contact': 'addContactFromForm',
                    'submit form.search-xmpp-contact': 'searchContacts',
                    'click a.subscribe-to-user': 'addContactFromList'
                },

                initialize: function (cfg) {
                    cfg.$parent.append(this.$el);
                    this.$tabs = cfg.$parent.parent().find('#controlbox-tabs');
                },

                render: function () {
                    var markup;
                    var widgets = tpl_contacts_panel({
                        label_online: __('Online'),
                        label_busy: __('Busy'),
                        label_away: __('Away'),
                        label_offline: __('Offline'),
                        label_logout: __('Log out'),
                        include_offline_state: _converse.include_offline_state,
                        allow_logout: _converse.allow_logout
                    });
                    var controlbox = _converse.chatboxes.get('controlbox');
                    this.$tabs.append(tpl_contacts_tab({
                        'label_contacts': LABEL_CONTACTS,
                        'is_current': controlbox.get('active-panel') === USERS_PANEL_ID
                    }));
                    if (_converse.xhr_user_search) {
                        markup = tpl_search_contact({
                            label_contact_name: __('Contact name'),
                            label_search: __('Search')
                        });
                    } else {
                        markup = tpl_add_contact_form({
                            label_contact_username: __('e.g. user@example.org'),
                            label_add: __('Add')
                        });
                    }
                    if (_converse.allow_contact_requests) {
                        widgets += tpl_add_contact_dropdown({
                            label_click_to_chat: __('Click to add new chat contacts'),
                            label_add_contact: __('Add a contact')
                        });
                    }
                    this.$el.html(widgets);
                    this.$el.find('.search-xmpp ul').append(markup);
                    if (controlbox.get('active-panel') !== USERS_PANEL_ID) {
                        this.$el.addClass('hidden');
                    }
                    return this;
                },

                toggleContactForm: function (ev) {
                    ev.preventDefault();
                    this.$el.find('.search-xmpp').toggle('fast', function () {
                        if ($(this).is(':visible')) {
                            $(this).find('input.username').focus();
                        }
                    });
                },

                searchContacts: function (ev) {
                    ev.preventDefault();
                    $.getJSON(_converse.xhr_user_search_url+ "?q=" + $(ev.target).find('input.username').val(), function (data) {
                        var $ul= $('.search-xmpp ul');
                        $ul.find('li.found-user').remove();
                        $ul.find('li.chat-info').remove();
                        if (!data.length) {
                            $ul.append('<li class="chat-info">'+__('No users found')+'</li>');
                        }
                        $(data).each(function (idx, obj) {
                            $ul.append(
                                $('<li class="found-user"></li>')
                                .append(
                                    $('<a class="subscribe-to-user" href="#" title="'+__('Click to add as a chat contact')+'"></a>')
                                    .attr('data-recipient', Strophe.getNodeFromJid(obj.id)+"@"+Strophe.getDomainFromJid(obj.id))
                                    .text(obj.fullname)
                                )
                            );
                        });
                    });
                },

                addContactFromForm: function (ev) {
                    ev.preventDefault();
                    var $input = $(ev.target).find('input');
                    var jid = $input.val();
                    if (! jid) {
                        // this is not a valid JID
                        $input.addClass('error');
                        return;
                    }
                    _converse.roster.addAndSubscribe(jid);
                    $('.search-xmpp').hide();
                },

                addContactFromList: function (ev) {
                    ev.preventDefault();
                    var $target = $(ev.target),
                        jid = $target.attr('data-recipient'),
                        name = $target.text();
                    _converse.roster.addAndSubscribe(jid, name);
                    $target.parent().remove();
                    $('.search-xmpp').hide();
                }
            });


            _converse.ControlBoxToggle = Backbone.View.extend({
                tagName: 'a',
                className: 'toggle-controlbox hidden',
                id: 'toggle-controlbox',
                events: {
                    'click': 'onClick'
                },
                attributes: {
                    'href': "#"
                },

                initialize: function () {
                    _converse.chatboxviews.$el.prepend(this.render());
                    this.updateOnlineCount();
                    var that = this;
                    _converse.on('initialized', function () {
                        _converse.roster.on("add", that.updateOnlineCount, that);
                        _converse.roster.on('change', that.updateOnlineCount, that);
                        _converse.roster.on("destroy", that.updateOnlineCount, that);
                        _converse.roster.on("remove", that.updateOnlineCount, that);
                    });
                },

                render: function () {
                    // We let the render method of ControlBoxView decide whether
                    // the ControlBox or the Toggle must be shown. This prevents
                    // artifacts (i.e. on page load the toggle is shown only to then
                    // seconds later be hidden in favor of the control box).
                    return this.$el.html(
                        tpl_controlbox_toggle({
                            'label_toggle': __('Toggle chat')
                        })
                    );
                },

                updateOnlineCount: _.debounce(function () {
                    if (_.isUndefined(_converse.roster)) {
                        return;
                    }
                    var $count = this.$('#online-count');
                    $count.text('('+_converse.roster.getNumOnlineContacts()+')');
                    if (!$count.is(':visible')) {
                        $count.show();
                    }
                }, _converse.animate ? 100 : 0),

                hide: function (callback) {
                    this.el.classList.add('hidden');
                    callback();
                },

                show: function (callback) {
                    utils.fadeIn(this.el, callback);
                },

                showControlBox: function () {
                    var controlbox = _converse.chatboxes.get('controlbox');
                    if (!controlbox) {
                        controlbox = _converse.addControlBox();
                    }
                    if (_converse.connection.connected) {
                        controlbox.save({closed: false});
                    } else {
                        controlbox.trigger('show');
                    }
                },

                onClick: function (e) {
                    e.preventDefault();
                    if ($("div#controlbox").is(':visible')) {
                        var controlbox = _converse.chatboxes.get('controlbox');
                        if (_converse.connection.connected) {
                            controlbox.save({closed: true});
                        } else {
                            controlbox.trigger('hide');
                        }
                    } else {
                        this.showControlBox();
                    }
                }
            });

            var disconnect =  function () {
                /* Upon disconnection, set connected to `false`, so that if
                 * we reconnect,
                 * "onConnected" will be called, to fetch the roster again and
                 * to send out a presence stanza.
                 */
                var view = _converse.chatboxviews.get('controlbox');
                view.model.set({connected:false});
                view.$('#controlbox-tabs').empty();
                view.renderLoginPanel();
            };
            _converse.on('disconnected', disconnect);

            var afterReconnected = function () {
                /* After reconnection makes sure the controlbox's is aware.
                 */
                var view = _converse.chatboxviews.get('controlbox');
                if (view.model.get('connected')) {
                    _converse.chatboxviews.get("controlbox").onConnected();
                } else {
                    view.model.set({connected:true});
                }
            };
            _converse.on('reconnected', afterReconnected);
        }
    });
}));


define('tpl!chatarea', ['lodash'], function(_) {return function(obj) {
obj || (obj = {});
var __t, __p = '', __e = _.escape, __j = Array.prototype.join;
function print() { __p += __j.call(arguments, '') }
with (obj) {
__p += '<div class="chat-area">\n    <div class="chat-content ';
 if (show_send_button) { ;
__p += 'chat-content-sendbutton';
 } ;
__p += '"></div>\n    <div class="new-msgs-indicator hidden">▼ ' +
__e( unread_msgs ) +
' ▼</div>\n    <form class="sendXMPPMessage" action="" method="post">\n        ';
 if (show_toolbar) { ;
__p += '\n            <ul class="chat-toolbar no-text-select"></ul>\n        ';
 } ;
__p += '\n        <textarea type="text" class="chat-textarea ';
 if (show_send_button) { ;
__p += 'chat-textarea-send-button';
 } ;
__p += '"\n            placeholder="' +
__e(label_message) +
'"/>\n    ';
 if (show_send_button) { ;
__p += '\n        <button type="submit" class="pure-button send-button">' +
__e( label_send ) +
'</button>\n    ';
 } ;
__p += '\n    </form>\n</div>\n';

}
return __p
};});


define('tpl!chatroom', ['lodash'], function(_) {return function(obj) {
obj || (obj = {});
var __t, __p = '';
with (obj) {
__p += '<div class="flyout box-flyout">\n    <div class="chat-head chat-head-chatroom"></div>\n    <div class="chat-body chatroom-body"><span class="spinner centered"/></div>\n</div>\n';

}
return __p
};});


define('tpl!chatroom_disconnect', ['lodash'], function(_) {return function(obj) {
obj || (obj = {});
var __t, __p = '', __e = _.escape;
with (obj) {
__p += '<p class="disconnect-msg">' +
__e(disconnect_message) +
'</p>\n';

}
return __p
};});


define('tpl!chatroom_features', ['lodash'], function(_) {return function(obj) {
obj || (obj = {});
var __t, __p = '', __e = _.escape, __j = Array.prototype.join;
function print() { __p += __j.call(arguments, '') }
with (obj) {

 if (has_features) { ;
__p += '\n<p class="occupants-heading">' +
__e(label_features) +
'</p>\n';
 } ;
__p += '\n<ul class="features-list">\n';
 if (passwordprotected) { ;
__p += '\n<li class="feature" title="' +
__e( tt_passwordprotected ) +
'"><span class="icon-lock-2"></span>' +
__e( label_passwordprotected ) +
'</li>\n';
 } ;
__p += '\n';
 if (unsecured) { ;
__p += '\n<li class="feature" title="' +
__e( tt_unsecured ) +
'"><span class="icon-unlocked"></span>' +
__e( label_unsecured ) +
'</li>\n';
 } ;
__p += '\n';
 if (hidden) { ;
__p += '\n<li class="feature" title="' +
__e( tt_hidden ) +
'"><span class="icon-eye-blocked"></span>' +
__e( label_hidden ) +
'</li>\n';
 } ;
__p += '\n';
 if (public) { ;
__p += '\n<li class="feature" title="' +
__e( tt_public ) +
'"><span class="icon-eye"></span>' +
__e( label_public ) +
'</li>\n';
 } ;
__p += '\n';
 if (membersonly) { ;
__p += '\n<li class="feature" title="' +
__e( tt_membersonly ) +
'"><span class="icon-address-book"></span>' +
__e( label_membersonly ) +
'</li>\n';
 } ;
__p += '\n';
 if (open) { ;
__p += '\n<li class="feature" title="' +
__e( tt_open ) +
'"><span class="icon-globe"></span>' +
__e( label_open ) +
'</li>\n';
 } ;
__p += '\n';
 if (persistent) { ;
__p += '\n<li class="feature" title="' +
__e( tt_persistent ) +
'"><span class="icon-save"></span>' +
__e( label_persistent ) +
'</li>\n';
 } ;
__p += '\n';
 if (temporary) { ;
__p += '\n<li class="feature" title="' +
__e( tt_temporary ) +
'"><span class="icon-snowflake"></span>' +
__e( label_temporary ) +
'</li>\n';
 } ;
__p += '\n';
 if (nonanonymous) { ;
__p += '\n<li class="feature" title="' +
__e( tt_nonanonymous ) +
'"><span class="icon-idcard-dark"></span>' +
__e( label_nonanonymous ) +
'</li>\n';
 } ;
__p += '\n';
 if (semianonymous) { ;
__p += '\n<li class="feature" title="' +
__e( tt_semianonymous ) +
'"><span class="icon-info"></span>' +
__e( label_semianonymous ) +
'</li>\n';
 } ;
__p += '\n';
 if (moderated) { ;
__p += '\n<li class="feature" title="' +
__e( tt_moderated ) +
'"><span class="icon-legal"></span>' +
__e( label_moderated ) +
'</li>\n';
 } ;
__p += '\n';
 if (unmoderated) { ;
__p += '\n<li class="feature" title="' +
__e( tt_unmoderated ) +
'"><span class="icon-info"></span>' +
__e( label_unmoderated ) +
'</li>\n';
 } ;
__p += '\n';
 if (mam_enabled) { ;
__p += '\n<li class="feature" title="' +
__e( tt_mam_enabled ) +
'"><span class="icon-database"></span>' +
__e( label_mam_enabled ) +
'</li>\n';
 } ;
__p += '\n</ul>\n';

}
return __p
};});


define('tpl!chatroom_form', ['lodash'], function(_) {return function(obj) {
obj || (obj = {});
var __t, __p = '';
with (obj) {
__p += '<div class="chatroom-form-container">\n    <form class="pure-form pure-form-stacked converse-form chatroom-form">\n        <fieldset>\n            <span class="spinner centered"/>\n        </fieldset>\n    </form>\n</div>\n';

}
return __p
};});


define('tpl!chatroom_head', ['lodash'], function(_) {return function(obj) {
obj || (obj = {});
var __t, __p = '', __e = _.escape, __j = Array.prototype.join;
function print() { __p += __j.call(arguments, '') }
with (obj) {
__p += '<a class="chatbox-btn close-chatbox-button icon-close" title="' +
__e(info_close) +
'"></a>\n';
 if (affiliation == 'owner') { ;
__p += '\n    <a class="chatbox-btn configure-chatroom-button icon-wrench" title="' +
__e(info_configure) +
' "></a>\n';
 } ;
__p += '\n<div class="chat-title" title="' +
__e(jid) +
'">\n    ' +
__e( name ) +
'\n    <p class="chatroom-description">' +
__e( description ) +
'<p/>\n</div>\n';

}
return __p
};});


define('tpl!chatroom_invite', ['lodash'], function(_) {return function(obj) {
obj || (obj = {});
var __t, __p = '', __e = _.escape;
with (obj) {
__p += '<form class="pure-form room-invite">\n    <input class="invited-contact" placeholder="' +
__e(label_invitation) +
'" type="text"/>\n</form>\n';

}
return __p
};});


define('tpl!chatroom_nickname_form', ['lodash'], function(_) {return function(obj) {
obj || (obj = {});
var __t, __p = '', __e = _.escape;
with (obj) {
__p += '<div class="chatroom-form-container">\n    <form class="pure-form converse-form chatroom-form converse-centered-form">\n        <fieldset>\n            <label>' +
__e(heading) +
'</label>\n            <p class="validation-message">' +
__e(validation_message) +
'</p>\n            <input type="text" required="required" name="nick" class="new-chatroom-nick" placeholder="' +
__e(label_nickname) +
'"/>\n        </fieldset>\n        <fieldset>\n            <input type="submit" class="pure-button button-primary" name="join" value="' +
__e(label_join) +
'"/>\n        </fieldset>\n    </form>\n</div>\n';

}
return __p
};});


define('tpl!chatroom_password_form', ['lodash'], function(_) {return function(obj) {
obj || (obj = {});
var __t, __p = '', __e = _.escape;
with (obj) {
__p += '<div class="chatroom-form-container">\n    <form class="pure-form converse-form chatroom-form">\n        <fieldset>\n            <legend>' +
__e(heading) +
'</legend>\n            <label>' +
__e(label_password) +
'</label>\n            <input type="password" name="password"/>\n        </fieldset>\n        <fieldset>\n            <input class="pure-button button-primary" type="submit" value="' +
__e(label_submit) +
'"/>\n        </fieldset>\n    </form>\n</div>\n';

}
return __p
};});


define('tpl!chatroom_sidebar', ['lodash'], function(_) {return function(obj) {
obj || (obj = {});
var __t, __p = '', __e = _.escape;
with (obj) {
__p += '<!-- <div class="occupants"> -->\n<p class="occupants-heading">' +
__e(label_occupants) +
'</p>\n<ul class="occupant-list"></ul>\n<div class="chatroom-features"></div>\n<!-- </div> -->\n';

}
return __p
};});


define('tpl!chatroom_toolbar', ['lodash'], function(_) {return function(obj) {
obj || (obj = {});
var __t, __p = '', __e = _.escape, __j = Array.prototype.join;
function print() { __p += __j.call(arguments, '') }
with (obj) {

 if (show_emoticons)  { ;
__p += '\n    <li class="toggle-smiley icon-happy" title="' +
__e(label_insert_smiley) +
'">\n        <ul>\n            <li><a class="icon-smiley" href="#" data-emoticon=":)"></a></li>\n            <li><a class="icon-wink" href="#" data-emoticon=";)"></a></li>\n            <li><a class="icon-grin" href="#" data-emoticon=":D"></a></li>\n            <li><a class="icon-tongue" href="#" data-emoticon=":P"></a></li>\n            <li><a class="icon-cool" href="#" data-emoticon="8)"></a></li>\n            <li><a class="icon-evil" href="#" data-emoticon=">:)"></a></li>\n            <li><a class="icon-confused" href="#" data-emoticon=":S"></a></li>\n            <li><a class="icon-wondering" href="#" data-emoticon=":\\"></a></li>\n            <li><a class="icon-angry" href="#" data-emoticon=">:("></a></li>\n            <li><a class="icon-sad" href="#" data-emoticon=":("></a></li>\n            <li><a class="icon-shocked" href="#" data-emoticon=":O"></a></li>\n            <li><a class="icon-thumbs-up" href="#" data-emoticon="(^.^)b"></a></li>\n            <li><a class="icon-heart" href="#" data-emoticon="<3"></a></li>\n        </ul>\n    </li>\n';
 } ;
__p += '\n';
 if (show_call_button)  { ;
__p += '\n<li class="toggle-call"><a class="icon-phone" title="' +
__e(label_start_call) +
'"></a></li>\n';
 } ;
__p += '\n';
 if (show_occupants_toggle)  { ;
__p += '\n<li class="toggle-occupants"><a class="icon-hide-users" title="' +
__e(label_hide_occupants) +
'"></a></li>\n';
 } ;
__p += '\n';
 if (show_clear_button)  { ;
__p += '\n<li class="toggle-clear"><a class="icon-remove" title="' +
__e(label_clear) +
'"></a></li>\n';
 } ;
__p += '\n\n';

}
return __p
};});


define('tpl!chatrooms_tab', ['lodash'], function(_) {return function(obj) {
obj || (obj = {});
var __t, __p = '', __j = Array.prototype.join;
function print() { __p += __j.call(arguments, '') }
with (obj) {
__p += '<li><a class="s ';
 if (is_current) { ;
__p += ' current ';
 } ;
__p += '"\n       data-id="chatrooms" href="#chatrooms">\n    ' +
((__t = (label_rooms)) == null ? '' : __t) +
'\n</a></li>\n';

}
return __p
};});


define('tpl!info', ['lodash'], function(_) {return function(obj) {
obj || (obj = {});
var __t, __p = '', __e = _.escape;
with (obj) {
__p += '<div class="chat-info">' +
__e(message) +
'</div>\n';

}
return __p
};});


define('tpl!occupant', ['lodash'], function(_) {return function(obj) {
obj || (obj = {});
var __t, __p = '', __e = _.escape, __j = Array.prototype.join;
function print() { __p += __j.call(arguments, '') }
with (obj) {
__p += '<li class="' +
__e( role ) +
' occupant" id="' +
__e( id ) +
'"\n    ';
 if (role === "moderator") { ;
__p += '\n       title="' +
__e( jid ) +
' ' +
__e( desc_moderator ) +
' ' +
__e( hint_occupant ) +
'"\n    ';
 } ;
__p += '\n    ';
 if (role === "occupant") { ;
__p += '\n       title="' +
__e( jid ) +
' ' +
__e( desc_occupant ) +
' ' +
__e( hint_occupant ) +
'"\n    ';
 } ;
__p += '\n    ';
 if (role === "visitor") { ;
__p += '\n       title="' +
__e( jid ) +
' ' +
__e( desc_visitor ) +
' ' +
__e( hint_occupant ) +
'"\n    ';
 } ;
__p += '\n    ';
 if (!_.includes(["visitor", "occupant", "moderator"], role)) { ;
__p += '\n       title="' +
__e( jid ) +
' ' +
__e( hint_occupant ) +
'"\n       ';
 } ;
__p += '><div class="occupant-status occupant-' +
__e(show) +
' circle" title="' +
__e(hint_show) +
'"></div>' +
__e(nick) +
'</li>\n';

}
return __p
};});


define('tpl!room_description', ['lodash'], function(_) {return function(obj) {
obj || (obj = {});
var __t, __p = '', __e = _.escape, __j = Array.prototype.join;
function print() { __p += __j.call(arguments, '') }
with (obj) {
__p += '<!-- FIXME: check markup in mockup -->\n<div class="room-info">\n<p class="room-info"><strong>' +
__e(label_server) +
'</strong> ' +
__e(server) +
'</p>\n<p class="room-info"><strong>' +
__e(label_desc) +
'</strong> ' +
__e(desc) +
'</p>\n<p class="room-info"><strong>' +
__e(label_occ) +
'</strong> ' +
__e(occ) +
'</p>\n<p class="room-info"><strong>' +
__e(label_features) +
'</strong>\n    <ul>\n        ';
 if (passwordprotected) { ;
__p += '\n        <li class="room-info locked">' +
__e(label_requires_auth) +
'</li>\n        ';
 } ;
__p += '\n        ';
 if (hidden) { ;
__p += '\n        <li class="room-info">' +
__e(label_hidden) +
'</li>\n        ';
 } ;
__p += '\n        ';
 if (membersonly) { ;
__p += '\n        <li class="room-info">' +
__e(label_requires_invite) +
'</li>\n        ';
 } ;
__p += '\n        ';
 if (moderated) { ;
__p += '\n        <li class="room-info">' +
__e(label_moderated) +
'</li>\n        ';
 } ;
__p += '\n        ';
 if (nonanonymous) { ;
__p += '\n        <li class="room-info">' +
__e(label_non_anon) +
'</li>\n        ';
 } ;
__p += '\n        ';
 if (open) { ;
__p += '\n        <li class="room-info">' +
__e(label_open_room) +
'</li>\n        ';
 } ;
__p += '\n        ';
 if (persistent) { ;
__p += '\n        <li class="room-info">' +
__e(label_permanent_room) +
'</li>\n        ';
 } ;
__p += '\n        ';
 if (publicroom) { ;
__p += '\n        <li class="room-info">' +
__e(label_public) +
'</li>\n        ';
 } ;
__p += '\n        ';
 if (semianonymous) { ;
__p += '\n        <li class="room-info">' +
__e(label_semi_anon) +
'</li>\n        ';
 } ;
__p += '\n        ';
 if (temporary) { ;
__p += '\n        <li class="room-info">' +
__e(label_temp_room) +
'</li>\n        ';
 } ;
__p += '\n        ';
 if (unmoderated) { ;
__p += '\n        <li class="room-info">' +
__e(label_unmoderated) +
'</li>\n        ';
 } ;
__p += '\n    </ul>\n</p>\n</div>\n';

}
return __p
};});


define('tpl!room_item', ['lodash'], function(_) {return function(obj) {
obj || (obj = {});
var __t, __p = '', __e = _.escape;
with (obj) {
__p += '<dd class="available-chatroom">\n<a class="open-room" data-room-jid="' +
__e(jid) +
'"\n   title="' +
__e(open_title) +
'" href="#">' +
__e(_.escape(name)) +
'</a>\n<a class="room-info icon-room-info" data-room-jid="' +
__e(jid) +
'"\n   title="' +
__e(info_title) +
'" href="#">&nbsp;</a>\n</dd>\n';

}
return __p
};});


define('tpl!room_panel', ['lodash'], function(_) {return function(obj) {
obj || (obj = {});
var __t, __p = '', __j = Array.prototype.join;
function print() { __p += __j.call(arguments, '') }
with (obj) {
__p += '<form class="pure-form pure-form-stacked converse-form add-chatroom" action="" method="post">\n    <fieldset>\n        <label>' +
((__t = (label_room_name)) == null ? '' : __t) +
'</label>\n        <input type="text" name="chatroom" class="new-chatroom-name" placeholder="' +
((__t = (label_room_name)) == null ? '' : __t) +
'"/>\n        ';
 if (server_input_type != 'hidden') { ;
__p += '\n            <label' +
((__t = (server_label_global_attr)) == null ? '' : __t) +
'>' +
((__t = (label_server)) == null ? '' : __t) +
'</label>\n        ';
 } ;
__p += '\n        <input type="' +
((__t = (server_input_type)) == null ? '' : __t) +
'" name="server" class="new-chatroom-server" placeholder="' +
((__t = (label_server)) == null ? '' : __t) +
'"/>\n        <input type="submit" class="pure-button button-primary" name="join" value="' +
((__t = (label_join)) == null ? '' : __t) +
'"/>\n        <input type="button" class="pure-button button-secondary" name="show" id="show-rooms" value="' +
((__t = (label_show_rooms)) == null ? '' : __t) +
'"/>\n    </fieldset>\n</form>\n<dl id="available-chatrooms" class="rooms-list"></dl>\n';

}
return __p
};});

/**
 * Simple, lightweight, usable local autocomplete library for modern browsers
 * Because there weren’t enough autocomplete scripts in the world? Because I’m completely insane and have NIH syndrome? Probably both. :P
 * @author Lea Verou http://leaverou.github.io/awesomplete
 * MIT license
 */

(function () {

var _ = function (input, o) {
	var me = this;

	// Setup

	this.input = $(input);
	this.input.setAttribute("autocomplete", "off");
	this.input.setAttribute("aria-autocomplete", "list");

	o = o || {};

	configure(this, {
		minChars: 2,
		maxItems: 10,
		autoFirst: false,
		data: _.DATA,
		filter: _.FILTER_CONTAINS,
		sort: _.SORT_BYLENGTH,
		item: _.ITEM,
		replace: _.REPLACE
	}, o);

	this.index = -1;

	// Create necessary elements

	this.container = $.create("div", {
		className: "awesomplete",
		around: input
	});

	this.ul = $.create("ul", {
		hidden: "hidden",
		inside: this.container
	});

	this.status = $.create("span", {
		className: "visually-hidden",
		role: "status",
		"aria-live": "assertive",
		"aria-relevant": "additions",
		inside: this.container
	});

	// Bind events

	$.bind(this.input, {
		"input": this.evaluate.bind(this),
		"blur": this.close.bind(this, { reason: "blur" }),
		"keydown": function(evt) {
			var c = evt.keyCode;

			// If the dropdown `ul` is in view, then act on keydown for the following keys:
			// Enter / Esc / Up / Down
			if(me.opened) {
				if (c === 13 && me.selected) { // Enter
					evt.preventDefault();
					me.select();
				}
				else if (c === 27) { // Esc
					me.close({ reason: "esc" });
				}
				else if (c === 38 || c === 40) { // Down/Up arrow
					evt.preventDefault();
					me[c === 38? "previous" : "next"]();
				}
			}
		}
	});

	$.bind(this.input.form, {"submit": this.close.bind(this, { reason: "submit" })});

	$.bind(this.ul, {"mousedown": function(evt) {
		var li = evt.target;

		if (li !== this) {

			while (li && !/li/i.test(li.nodeName)) {
				li = li.parentNode;
			}

			if (li && evt.button === 0) {  // Only select on left click
				evt.preventDefault();
				me.select(li, evt.target);
			}
		}
	}});

	if (this.input.hasAttribute("list")) {
		this.list = "#" + this.input.getAttribute("list");
		this.input.removeAttribute("list");
	}
	else {
		this.list = this.input.getAttribute("data-list") || o.list || [];
	}

	_.all.push(this);
};

_.prototype = {
	set list(list) {
		if (Array.isArray(list)) {
			this._list = list;
		}
		else if (typeof list === "string" && list.indexOf(",") > -1) {
				this._list = list.split(/\s*,\s*/);
		}
		else { // Element or CSS selector
			list = $(list);

			if (list && list.children) {
				var items = [];
				slice.apply(list.children).forEach(function (el) {
					if (!el.disabled) {
						var text = el.textContent.trim();
						var value = el.value || text;
						var label = el.label || text;
						if (value !== "") {
							items.push({ label: label, value: value });
						}
					}
				});
				this._list = items;
			}
		}

		if (document.activeElement === this.input) {
			this.evaluate();
		}
	},

	get selected() {
		return this.index > -1;
	},

	get opened() {
		return !this.ul.hasAttribute("hidden");
	},

	close: function (o) {
		if (!this.opened) {
			return;
		}

		this.ul.setAttribute("hidden", "");
		this.index = -1;

		$.fire(this.input, "awesomplete-close", o || {});
	},

	open: function () {
		this.ul.removeAttribute("hidden");

		if (this.autoFirst && this.index === -1) {
			this.goto(0);
		}

		$.fire(this.input, "awesomplete-open");
	},

	next: function () {
		var count = this.ul.children.length;

		this.goto(this.index < count - 1? this.index + 1 : -1);
	},

	previous: function () {
		var count = this.ul.children.length;

		this.goto(this.selected? this.index - 1 : count - 1);
	},

	// Should not be used, highlights specific item without any checks!
	goto: function (i) {
		var lis = this.ul.children;

		if (this.selected) {
			lis[this.index].setAttribute("aria-selected", "false");
		}

		this.index = i;

		if (i > -1 && lis.length > 0) {
			lis[i].setAttribute("aria-selected", "true");
			this.status.textContent = lis[i].textContent;

			$.fire(this.input, "awesomplete-highlight", {
				text: this.suggestions[this.index]
			});
		}
	},

	select: function (selected, origin) {
		if (selected) {
			this.index = $.siblingIndex(selected);
		} else {
			selected = this.ul.children[this.index];
		}

		if (selected) {
			var suggestion = this.suggestions[this.index];

			var allowed = $.fire(this.input, "awesomplete-select", {
				text: suggestion,
				origin: origin || selected
			});

			if (allowed) {
				this.replace(suggestion);
				this.close({ reason: "select" });
				$.fire(this.input, "awesomplete-selectcomplete", {
					text: suggestion
				});
			}
		}
	},

	evaluate: function() {
		var me = this;
		var value = this.input.value;

		if (value.length >= this.minChars && this._list.length > 0) {
			this.index = -1;
			// Populate list with options that match
			this.ul.innerHTML = "";

			this.suggestions = this._list
				.map(function(item) {
					return new Suggestion(me.data(item, value));
				})
				.filter(function(item) {
					return me.filter(item, value);
				})
				.sort(this.sort)
				.slice(0, this.maxItems);

			this.suggestions.forEach(function(text) {
					me.ul.appendChild(me.item(text, value));
				});

			if (this.ul.children.length === 0) {
				this.close({ reason: "nomatches" });
			} else {
				this.open();
			}
		}
		else {
			this.close({ reason: "nomatches" });
		}
	}
};

// Static methods/properties

_.all = [];

_.FILTER_CONTAINS = function (text, input) {
	return RegExp($.regExpEscape(input.trim()), "i").test(text);
};

_.FILTER_STARTSWITH = function (text, input) {
	return RegExp("^" + $.regExpEscape(input.trim()), "i").test(text);
};

_.SORT_BYLENGTH = function (a, b) {
	if (a.length !== b.length) {
		return a.length - b.length;
	}

	return a < b? -1 : 1;
};

_.ITEM = function (text, input) {
	var html = input === '' ? text : text.replace(RegExp($.regExpEscape(input.trim()), "gi"), "<mark>$&</mark>");
	return $.create("li", {
		innerHTML: html,
		"aria-selected": "false"
	});
};

_.REPLACE = function (text) {
	this.input.value = text.value;
};

_.DATA = function (item/*, input*/) { return item; };

// Private functions

function Suggestion(data) {
	var o = Array.isArray(data)
	  ? { label: data[0], value: data[1] }
	  : typeof data === "object" && "label" in data && "value" in data ? data : { label: data, value: data };

	this.label = o.label || o.value;
	this.value = o.value;
}
Object.defineProperty(Suggestion.prototype = Object.create(String.prototype), "length", {
	get: function() { return this.label.length; }
});
Suggestion.prototype.toString = Suggestion.prototype.valueOf = function () {
	return "" + this.label;
};

function configure(instance, properties, o) {
	for (var i in properties) {
		var initial = properties[i],
		    attrValue = instance.input.getAttribute("data-" + i.toLowerCase());

		if (typeof initial === "number") {
			instance[i] = parseInt(attrValue);
		}
		else if (initial === false) { // Boolean options must be false by default anyway
			instance[i] = attrValue !== null;
		}
		else if (initial instanceof Function) {
			instance[i] = null;
		}
		else {
			instance[i] = attrValue;
		}

		if (!instance[i] && instance[i] !== 0) {
			instance[i] = (i in o)? o[i] : initial;
		}
	}
}

// Helpers

var slice = Array.prototype.slice;

function $(expr, con) {
	return typeof expr === "string"? (con || document).querySelector(expr) : expr || null;
}

function $$(expr, con) {
	return slice.call((con || document).querySelectorAll(expr));
}

$.create = function(tag, o) {
	var element = document.createElement(tag);

	for (var i in o) {
		var val = o[i];

		if (i === "inside") {
			$(val).appendChild(element);
		}
		else if (i === "around") {
			var ref = $(val);
			ref.parentNode.insertBefore(element, ref);
			element.appendChild(ref);
		}
		else if (i in element) {
			element[i] = val;
		}
		else {
			element.setAttribute(i, val);
		}
	}

	return element;
};

$.bind = function(element, o) {
	if (element) {
		for (var event in o) {
			var callback = o[event];

			event.split(/\s+/).forEach(function (event) {
				element.addEventListener(event, callback);
			});
		}
	}
};

$.fire = function(target, type, properties) {
	var evt = document.createEvent("HTMLEvents");

	evt.initEvent(type, true, true );

	for (var j in properties) {
		evt[j] = properties[j];
	}

	return target.dispatchEvent(evt);
};

$.regExpEscape = function (s) {
	return s.replace(/[-\\^$*+?.()|[\]{}]/g, "\\$&");
};

$.siblingIndex = function (el) {
	/* eslint-disable no-cond-assign */
	for (var i = 0; el = el.previousElementSibling; i++);
	return i;
};

// Initialization

function init() {
	$$("input.awesomplete").forEach(function (input) {
		new _(input);
	});
}

// Are we in a browser? Check for Document constructor
if (typeof Document !== "undefined") {
	// DOM already loaded?
	if (document.readyState !== "loading") {
		init();
	}
	else {
		// Wait for it
		document.addEventListener("DOMContentLoaded", init);
	}
}

_.$ = $;
_.$$ = $$;

// Make sure to export Awesomplete on self when in a browser
if (typeof self !== "undefined") {
	self.Awesomplete = _;
}

// Expose Awesomplete as a CJS module
if (typeof module === "object" && module.exports) {
	module.exports = _;
}

return _;

}());

define("awesomplete", (function (global) {
    return function () {
        var ret, fn;
        return ret || global.Awesomplete;
    };
}(this)));

// Converse.js (A browser based XMPP chat client)
// http://conversejs.org
//
// Copyright (c) 2012-2017, Jan-Carel Brand <jc@opkode.com>
// Licensed under the Mozilla Public License (MPLv2)
//
/*global define */

/* This is a Converse.js plugin which add support for multi-user chat rooms, as
 * specified in XEP-0045 Multi-user chat.
 */
(function (root, factory) {
    define('converse-muc',[
            "converse-core",
            "tpl!chatarea",
            "tpl!chatroom",
            "tpl!chatroom_disconnect",
            "tpl!chatroom_features",
            "tpl!chatroom_form",
            "tpl!chatroom_head",
            "tpl!chatroom_invite",
            "tpl!chatroom_nickname_form",
            "tpl!chatroom_password_form",
            "tpl!chatroom_sidebar",
            "tpl!chatroom_toolbar",
            "tpl!chatrooms_tab",
            "tpl!info",
            "tpl!occupant",
            "tpl!room_description",
            "tpl!room_item",
            "tpl!room_panel",
            "awesomplete",
            "converse-chatview"
    ], factory);
}(this, function (
            converse,
            tpl_chatarea,
            tpl_chatroom,
            tpl_chatroom_disconnect,
            tpl_chatroom_features,
            tpl_chatroom_form,
            tpl_chatroom_head,
            tpl_chatroom_invite,
            tpl_chatroom_nickname_form,
            tpl_chatroom_password_form,
            tpl_chatroom_sidebar,
            tpl_chatroom_toolbar,
            tpl_chatrooms_tab,
            tpl_info,
            tpl_occupant,
            tpl_room_description,
            tpl_room_item,
            tpl_room_panel,
            Awesomplete
    ) {
    "use strict";
    var ROOMS_PANEL_ID = 'chatrooms';

    // Strophe methods for building stanzas
    var Strophe = converse.env.Strophe,
        Backbone = converse.env.Backbone,
        $iq = converse.env.$iq,
        $build = converse.env.$build,
        $msg = converse.env.$msg,
        $pres = converse.env.$pres,
        b64_sha1 = converse.env.b64_sha1,
        sizzle = converse.env.sizzle,
        utils = converse.env.utils;
    // Other necessary globals
    var $ = converse.env.jQuery,
        _ = converse.env._,
        moment = converse.env.moment;

    // Add Strophe Namespaces
    Strophe.addNamespace('MUC_ADMIN', Strophe.NS.MUC + "#admin");
    Strophe.addNamespace('MUC_OWNER', Strophe.NS.MUC + "#owner");
    Strophe.addNamespace('MUC_REGISTER', "jabber:iq:register");
    Strophe.addNamespace('MUC_ROOMCONF', Strophe.NS.MUC + "#roomconfig");
    Strophe.addNamespace('MUC_USER', Strophe.NS.MUC + "#user");

    var ROOM_FEATURES = [
        'passwordprotected', 'unsecured', 'hidden',
        'public', 'membersonly', 'open', 'persistent',
        'temporary', 'nonanonymous', 'semianonymous',
        'moderated', 'unmoderated', 'mam_enabled'
    ];
    var ROOM_FEATURES_MAP = {
        'passwordprotected': 'unsecured',
        'unsecured': 'passwordprotected',
        'hidden': 'public',
        'public': 'hidden',
        'membersonly': 'open',
        'open': 'membersonly',
        'persistent': 'temporary',
        'temporary': 'persistent',
        'nonanonymous': 'semianonymous',
        'semianonymous': 'nonanonymous',
        'moderated': 'unmoderated',
        'unmoderated': 'moderated'
    };
    var ROOMSTATUS = {
        CONNECTED: 0,
        CONNECTING: 1,
        NICKNAME_REQUIRED: 2,
        PASSWORD_REQUIRED: 3,
        DISCONNECTED: 4,
        ENTERED: 5
    };

    converse.plugins.add('converse-muc', {
        /* Optional dependencies are other plugins which might be
         * overridden or relied upon, and therefore need to be loaded before
         * this plugin. They are called "optional" because they might not be
         * available, in which case any overrides applicable to them will be
         * ignored.
         *
         * It's possible however to make optional dependencies non-optional.
         * If the setting "strict_plugin_dependencies" is set to true,
         * an error will be raised if the plugin is not found.
         *
         * NB: These plugins need to have already been loaded via require.js.
         */
        optional_dependencies: ["converse-controlbox"],

        overrides: {
            // Overrides mentioned here will be picked up by converse.js's
            // plugin architecture they will replace existing methods on the
            // relevant objects or classes.
            //
            // New functions which don't exist yet can also be added.

            Features: {
                addClientFeatures: function () {
                    var _converse = this.__super__._converse;
                    this.__super__.addClientFeatures.apply(this, arguments);
                    if (_converse.allow_muc_invitations) {
                        _converse.connection.disco.addFeature('jabber:x:conference'); // Invites
                    }
                    if (_converse.allow_muc) {
                        _converse.connection.disco.addFeature(Strophe.NS.MUC);
                    }
                }
            },

            ControlBoxView: {
                renderContactsPanel: function () {
                    var _converse = this.__super__._converse;
                    this.__super__.renderContactsPanel.apply(this, arguments);
                    if (_converse.allow_muc) {
                        this.roomspanel = new _converse.RoomsPanel({
                            '$parent': this.$el.find('.controlbox-panes'),
                            'model': new (Backbone.Model.extend({
                                id: b64_sha1('converse.roomspanel'+_converse.bare_jid), // Required by sessionStorage
                                browserStorage: new Backbone.BrowserStorage[_converse.storage](
                                    b64_sha1('converse.roomspanel'+_converse.bare_jid))
                            }))()
                        });
                        this.roomspanel.render().model.fetch();
                        if (!this.roomspanel.model.get('nick')) {
                            this.roomspanel.model.save({
                                nick: Strophe.getNodeFromJid(_converse.bare_jid)
                            });
                        }
                    }
                },

                onConnected: function () {
                    var _converse = this.__super__._converse;
                    this.__super__.onConnected.apply(this, arguments);
                    if (!this.model.get('connected')) {
                        return;
                    }
                    if (_.isUndefined(_converse.muc_domain)) {
                        _converse.features.off('add', this.featureAdded, this);
                        _converse.features.on('add', this.featureAdded, this);
                        // Features could have been added before the controlbox was
                        // initialized. We're only interested in MUC
                        var feature = _converse.features.findWhere({
                            'var': Strophe.NS.MUC
                        });
                        if (feature) {
                            this.featureAdded(feature);
                        }
                    } else {
                        this.setMUCDomain(_converse.muc_domain);
                    }
                },

                setMUCDomain: function (domain) {
                    this.roomspanel.model.save({'muc_domain': domain});
                    var $server= this.$el.find('input.new-chatroom-server');
                    if (!$server.is(':focus')) {
                        $server.val(this.roomspanel.model.get('muc_domain'));
                    }
                },

                featureAdded: function (feature) {
                    var _converse = this.__super__._converse;
                    if ((feature.get('var') === Strophe.NS.MUC) && (_converse.allow_muc)) {
                        this.setMUCDomain(feature.get('from'));
                    }
                }
            },

            ChatBoxViews: {
                onChatBoxAdded: function (item) {
                    var _converse = this.__super__._converse;
                    var view = this.get(item.get('id'));
                    if (!view && item.get('type') === 'chatroom') {
                        view = new _converse.ChatRoomView({'model': item});
                        return this.add(item.get('id'), view);
                    } else {
                        return this.__super__.onChatBoxAdded.apply(this, arguments);
                    }
                }
            }
        },

        initialize: function () {
            /* The initialize function gets called as soon as the plugin is
             * loaded by converse.js's plugin machinery.
             */
            var _converse = this._converse,
                __ = _converse.__,
                ___ = _converse.___;
            // XXX: Inside plugins, all calls to the translation machinery
            // (e.g. utils.__) should only be done in the initialize function.
            // If called before, we won't know what language the user wants,
            // and it'll fall back to English.

            /* http://xmpp.org/extensions/xep-0045.html
             * ----------------------------------------
             * 100 message      Entering a room         Inform user that any occupant is allowed to see the user's full JID
             * 101 message (out of band)                Affiliation change  Inform user that his or her affiliation changed while not in the room
             * 102 message      Configuration change    Inform occupants that room now shows unavailable members
             * 103 message      Configuration change    Inform occupants that room now does not show unavailable members
             * 104 message      Configuration change    Inform occupants that a non-privacy-related room configuration change has occurred
             * 110 presence     Any room presence       Inform user that presence refers to one of its own room occupants
             * 170 message or initial presence          Configuration change    Inform occupants that room logging is now enabled
             * 171 message      Configuration change    Inform occupants that room logging is now disabled
             * 172 message      Configuration change    Inform occupants that the room is now non-anonymous
             * 173 message      Configuration change    Inform occupants that the room is now semi-anonymous
             * 174 message      Configuration change    Inform occupants that the room is now fully-anonymous
             * 201 presence     Entering a room         Inform user that a new room has been created
             * 210 presence     Entering a room         Inform user that the service has assigned or modified the occupant's roomnick
             * 301 presence     Removal from room       Inform user that he or she has been banned from the room
             * 303 presence     Exiting a room          Inform all occupants of new room nickname
             * 307 presence     Removal from room       Inform user that he or she has been kicked from the room
             * 321 presence     Removal from room       Inform user that he or she is being removed from the room because of an affiliation change
             * 322 presence     Removal from room       Inform user that he or she is being removed from the room because the room has been changed to members-only and the user is not a member
             * 332 presence     Removal from room       Inform user that he or she is being removed from the room because of a system shutdown
             */
            _converse.muc = {
                info_messages: {
                    100: __('This room is not anonymous'),
                    102: __('This room now shows unavailable members'),
                    103: __('This room does not show unavailable members'),
                    104: __('The room configuration has changed'),
                    170: __('Room logging is now enabled'),
                    171: __('Room logging is now disabled'),
                    172: __('This room is now no longer anonymous'),
                    173: __('This room is now semi-anonymous'),
                    174: __('This room is now fully-anonymous'),
                    201: __('A new room has been created')
                },

                disconnect_messages: {
                    301: __('You have been banned from this room'),
                    307: __('You have been kicked from this room'),
                    321: __("You have been removed from this room because of an affiliation change"),
                    322: __("You have been removed from this room because the room has changed to members-only and you're not a member"),
                    332: __("You have been removed from this room because the MUC (Multi-user chat) service is being shut down.")
                },

                action_info_messages: {
                    /* XXX: Note the triple underscore function and not double
                    * underscore.
                    *
                    * This is a hack. We can't pass the strings to __ because we
                    * don't yet know what the variable to interpolate is.
                    *
                    * Triple underscore will just return the string again, but we
                    * can then at least tell gettext to scan for it so that these
                    * strings are picked up by the translation machinery.
                    */
                    301: ___("%1$s has been banned"),
                    303: ___("%1$s's nickname has changed"),
                    307: ___("%1$s has been kicked out"),
                    321: ___("%1$s has been removed because of an affiliation change"),
                    322: ___("%1$s has been removed for not being a member")
                },

                new_nickname_messages: {
                    210: ___('Your nickname has been automatically set to: %1$s'),
                    303: ___('Your nickname has been changed to: %1$s')
                }
            };

            // Configuration values for this plugin
            // ====================================
            // Refer to docs/source/configuration.rst for explanations of these
            // configuration settings.
            this.updateSettings({
                allow_muc: true,
                allow_muc_invitations: true,
                auto_join_on_invite: false,
                auto_join_rooms: [],
                auto_list_rooms: false,
                hide_muc_server: false,
                muc_disable_moderator_commands: false,
                muc_domain: undefined,
                muc_history_max_stanzas: undefined,
                muc_instant_rooms: true,
                muc_nickname_from_jid: false,
                muc_show_join_leave: true,
                visible_toolbar_buttons: {
                    'toggle_occupants': true
                },
            });

            _converse.createChatRoom = function (settings) {
                /* Creates a new chat room, making sure that certain attributes
                 * are correct, for example that the "type" is set to
                 * "chatroom".
                 */
                settings = _.extend(
                    _.zipObject(ROOM_FEATURES, _.map(ROOM_FEATURES, _.stubFalse)),
                    settings
                );
                return _converse.chatboxviews.showChat(
                    _.extend({
                        'affiliation': null,
                        'connection_status': ROOMSTATUS.DISCONNECTED,
                        'description': '',
                        'features_fetched': false,
                        'roomconfig': {},
                        'type': 'chatroom',
                    }, settings)
                );
            };

            _converse.ChatRoomView = _converse.ChatBoxView.extend({
                /* Backbone View which renders a chat room, based upon the view
                 * for normal one-on-one chat boxes.
                 */
                length: 300,
                tagName: 'div',
                className: 'chatbox chatroom hidden',
                is_chatroom: true,
                events: {
                    'click .close-chatbox-button': 'close',
                    'click .configure-chatroom-button': 'getAndRenderConfigurationForm',
                    'click .toggle-smiley': 'toggleEmoticonMenu',
                    'click .toggle-smiley ul li': 'insertEmoticon',
                    'click .toggle-clear': 'clearChatRoomMessages',
                    'click .toggle-call': 'toggleCall',
                    'click .toggle-occupants a': 'toggleOccupants',
                    'click .new-msgs-indicator': 'viewUnreadMessages',
                    'click .occupant': 'onOccupantClicked',
                    'keypress .chat-textarea': 'keyPressed',
                    'click .send-button': 'onSendButtonClicked'
                },

                initialize: function () {
                    var that = this;
                    this.model.messages.on('add', this.onMessageAdded, this);
                    this.model.on('show', this.show, this);
                    this.model.on('destroy', this.hide, this);
                    this.model.on('change:connection_status', this.afterConnected, this);
                    this.model.on('change:affiliation', this.renderHeading, this);
                    this.model.on('change:chat_state', this.sendChatState, this);
                    this.model.on('change:description', this.renderHeading, this);
                    this.model.on('change:name', this.renderHeading, this);

                    this.createOccupantsView();
                    this.render().insertIntoDOM();
                    this.registerHandlers();

                    if (this.model.get('connection_status') !==  ROOMSTATUS.ENTERED) {
                        this.getRoomFeatures().always(function () {
                            that.join();
                            that.fetchMessages();
                            _converse.emit('chatRoomOpened', that);
                        });
                    } else {
                        this.fetchMessages();
                        _converse.emit('chatRoomOpened', that);
                    }
                },

                render: function () {
                    this.el.setAttribute('id', this.model.get('box_id'));
                    this.el.innerHTML = tpl_chatroom();
                    this.renderHeading();
                    this.renderChatArea();
                    if (this.model.get('connection_status') !== ROOMSTATUS.ENTERED) {
                        this.showSpinner();
                    }
                    utils.refreshWebkit();
                    return this;
                },

                renderHeading: function () {
                    /* Render the heading UI of the chat room. */
                    this.el.querySelector('.chat-head-chatroom').innerHTML = this.generateHeadingHTML();
                },

                renderChatArea: function () {
                    /* Render the UI container in which chat room messages will
                     * appear.
                     */
                    if (!this.$('.chat-area').length) {
                        this.$('.chatroom-body').empty()
                            .append(tpl_chatarea({
                                    'label_message': __('Message'),
                                    'label_send': __('Send'),
                                    'show_send_button': _converse.show_send_button,
                                    'show_toolbar': _converse.show_toolbar,
                                    'unread_msgs': __('You have unread messages')
                                }))
                            .append(this.occupantsview.$el);
                        this.renderToolbar(tpl_chatroom_toolbar);
                        this.$content = this.$el.find('.chat-content');
                    }
                    this.toggleOccupants(null, true);
                    return this;
                },

                createOccupantsView: function () {
                    /* Create the ChatRoomOccupantsView Backbone.View
                     */
                    var model = new _converse.ChatRoomOccupants();
                    model.chatroomview = this;
                    this.occupantsview = new _converse.ChatRoomOccupantsView({'model': model});
                    var id = b64_sha1('converse.occupants'+_converse.bare_jid+this.model.get('jid'));
                    this.occupantsview.model.browserStorage = new Backbone.BrowserStorage.session(id);
                    this.occupantsview.render();
                    this.occupantsview.model.fetch({add:true});
                    return this;
                },

                insertIntoDOM: function () {
                    if (document.querySelector('body').contains(this.el)) {
                        return;
                    }
                    var view = _converse.chatboxviews.get("controlbox");
                    if (view) {
                        this.$el.insertAfter(view.$el);
                    } else {
                        $('#conversejs').prepend(this.$el);
                    }
                    return this;
                },

                generateHeadingHTML: function () {
                    /* Returns the heading HTML to be rendered.
                     */
                    return tpl_chatroom_head(
                        _.extend(this.model.toJSON(), {
                            info_close: __('Close and leave this room'),
                            info_configure: __('Configure this room'),
                            description: this.model.get('description') || ''
                    }));
                },

                afterShown: function () {
                    /* Override from converse-chatview, specifically to avoid
                     * the 'active' chat state from being sent out prematurely.
                     *
                     * This is instead done in `afterConnected` below.
                     */
                    if (_converse.connection.connected) {
                        // Without a connection, we haven't yet initialized
                        // localstorage
                        this.model.save();
                    }
                    this.occupantsview.setOccupantsHeight();
                },

                afterConnected: function () {
                    if (this.model.get('connection_status') === ROOMSTATUS.ENTERED) {
                        this.setChatState(_converse.ACTIVE);
                        this.scrollDown();
                        this.focus();
                    }
                },

                getExtraMessageClasses: function (attrs) {
                    var extra_classes = _converse.ChatBoxView.prototype
                            .getExtraMessageClasses.apply(this, arguments);

                    if (this.is_chatroom && attrs.sender === 'them' &&
                            (new RegExp("\\b"+this.model.get('nick')+"\\b")).test(attrs.message)
                        ) {
                        // Add special class to mark groupchat messages
                        // in which we are mentioned.
                        extra_classes += ' mentioned';
                    }
                    return extra_classes;
                },

                getToolbarOptions: function () {
                    return _.extend(
                        _converse.ChatBoxView.prototype.getToolbarOptions.apply(this, arguments),
                        {
                          label_hide_occupants: __('Hide the list of occupants'),
                          show_occupants_toggle: this.is_chatroom && _converse.visible_toolbar_buttons.toggle_occupants
                        }
                    );
                },

                close: function (ev) {
                    /* Close this chat box, which implies leaving the room as
                     * well.
                     */
                    this.leave();
                },

                toggleOccupants: function (ev, preserve_state) {
                    /* Show or hide the right sidebar containing the chat
                     * occupants (and the invite widget).
                     */
                    if (ev) {
                        ev.preventDefault();
                        ev.stopPropagation();
                    }
                    if (preserve_state) {
                        // Bit of a hack, to make sure that the sidebar's state doesn't change
                        this.model.set({hidden_occupants: !this.model.get('hidden_occupants')});
                    }
                    if (!this.model.get('hidden_occupants')) {
                        this.model.save({hidden_occupants: true});
                        this.$('.icon-hide-users').removeClass('icon-hide-users').addClass('icon-show-users');
                        this.$('.occupants').addClass('hidden');
                        this.$('.chat-area').addClass('full');
                        this.scrollDown();
                    } else {
                        this.model.save({hidden_occupants: false});
                        this.$('.icon-show-users').removeClass('icon-show-users').addClass('icon-hide-users');
                        this.$('.chat-area').removeClass('full');
                        this.$('div.occupants').removeClass('hidden');
                        this.scrollDown();
                    }
                },

                onOccupantClicked: function (ev) {
                    /* When an occupant is clicked, insert their nickname into
                     * the chat textarea input.
                     */
                    this.insertIntoTextArea(ev.target.textContent);
                },

                requestMemberList: function (chatroom_jid, affiliation) {
                    /* Send an IQ stanza to the server, asking it for the
                     * member-list of this room.
                     *
                     * See: http://xmpp.org/extensions/xep-0045.html#modifymember
                     *
                     * Parameters:
                     *  (String) chatroom_jid: The JID of the chatroom for
                     *      which the member-list is being requested
                     *  (String) affiliation: The specific member list to
                     *      fetch. 'admin', 'owner' or 'member'.
                     *
                     * Returns:
                     *  A promise which resolves once the list has been
                     *  retrieved.
                     */
                    var deferred = new $.Deferred();
                    affiliation = affiliation || 'member';
                    var iq = $iq({to: chatroom_jid, type: "get"})
                        .c("query", {xmlns: Strophe.NS.MUC_ADMIN})
                            .c("item", {'affiliation': affiliation});
                    _converse.connection.sendIQ(iq, deferred.resolve, deferred.reject);
                    return deferred.promise();
                },

                parseMemberListIQ: function (iq) {
                    /* Given an IQ stanza with a member list, create an array of member
                     * objects.
                     */
                    return _.map(
                        $(iq).find('query[xmlns="'+Strophe.NS.MUC_ADMIN+'"] item'),
                        function (item) {
                            return {
                                'jid': item.getAttribute('jid'),
                                'affiliation': item.getAttribute('affiliation'),
                            };
                        }
                    );
                },

                computeAffiliationsDelta: function (exclude_existing, remove_absentees, new_list, old_list) {
                    /* Given two lists of objects with 'jid', 'affiliation' and
                     * 'reason' properties, return a new list containing
                     * those objects that are new, changed or removed
                     * (depending on the 'remove_absentees' boolean).
                     *
                     * The affiliations for new and changed members stay the
                     * same, for removed members, the affiliation is set to 'none'.
                     *
                     * The 'reason' property is not taken into account when
                     * comparing whether affiliations have been changed.
                     *
                     * Parameters:
                     *  (Boolean) exclude_existing: Indicates whether JIDs from
                     *      the new list which are also in the old list
                     *      (regardless of affiliation) should be excluded
                     *      from the delta. One reason to do this
                     *      would be when you want to add a JID only if it
                     *      doesn't have *any* existing affiliation at all.
                     *  (Boolean) remove_absentees: Indicates whether JIDs
                     *      from the old list which are not in the new list
                     *      should be considered removed and therefore be
                     *      included in the delta with affiliation set
                     *      to 'none'.
                     *  (Array) new_list: Array containing the new affiliations
                     *  (Array) old_list: Array containing the old affiliations
                     */
                    var new_jids = _.map(new_list, 'jid');
                    var old_jids = _.map(old_list, 'jid');

                    // Get the new affiliations
                    var delta = _.map(_.difference(new_jids, old_jids), function (jid) {
                        return new_list[_.indexOf(new_jids, jid)];
                    });
                    if (!exclude_existing) {
                        // Get the changed affiliations
                        delta = delta.concat(_.filter(new_list, function (item) {
                            var idx = _.indexOf(old_jids, item.jid);
                            if (idx >= 0) {
                                return item.affiliation !== old_list[idx].affiliation;
                            }
                            return false;
                        }));
                    }
                    if (remove_absentees) {
                        // Get the removed affiliations
                        delta = delta.concat(_.map(_.difference(old_jids, new_jids), function (jid) {
                            return {'jid': jid, 'affiliation': 'none'};
                        }));
                    }
                    return delta;
                },

                sendAffiliationIQ: function (chatroom_jid, affiliation, member) {
                    /* Send an IQ stanza specifying an affiliation change.
                     *
                     * Paremeters:
                     *  (String) chatroom_jid: JID of the relevant room
                     *  (String) affiliation: affiliation (could also be stored
                     *      on the member object).
                     *  (Object) member: Map containing the member's jid and
                     *      optionally a reason and affiliation.
                     */
                    var deferred = new $.Deferred();
                    var iq = $iq({to: chatroom_jid, type: "set"})
                        .c("query", {xmlns: Strophe.NS.MUC_ADMIN})
                        .c("item", {
                            'affiliation': member.affiliation || affiliation,
                            'jid': member.jid
                        });
                    if (!_.isUndefined(member.reason)) {
                        iq.c("reason", member.reason);
                    }
                    _converse.connection.sendIQ(iq, deferred.resolve, deferred.reject);
                    return deferred;
                },

                setAffiliation: function (affiliation, members) {
                    /* Send IQ stanzas to the server to set an affiliation for
                     * the provided JIDs.
                     *
                     * See: http://xmpp.org/extensions/xep-0045.html#modifymember
                     *
                     * XXX: Prosody doesn't accept multiple JIDs' affiliations
                     * being set in one IQ stanza, so as a workaround we send
                     * a separate stanza for each JID.
                     * Related ticket: https://prosody.im/issues/issue/795
                     *
                     * Parameters:
                     *  (String) affiliation: The affiliation
                     *  (Object) members: A map of jids, affiliations and
                     *      optionally reasons. Only those entries with the
                     *      same affiliation as being currently set will be
                     *      considered.
                     *
                     * Returns:
                     *  A promise which resolves and fails depending on the
                     *  XMPP server response.
                     */
                    members = _.filter(members, function (member) {
                        // We only want those members who have the right
                        // affiliation (or none, which implies the provided
                        // one).
                        return _.isUndefined(member.affiliation) ||
                                member.affiliation === affiliation;
                    });
                    var promises = _.map(
                        members,
                        _.partial(this.sendAffiliationIQ, this.model.get('jid'), affiliation)
                    );
                    return $.when.apply($, promises);
                },

                setAffiliations: function (members, onSuccess, onError) {
                    /* Send IQ stanzas to the server to modify the
                     * affiliations in this room.
                     *
                     * See: http://xmpp.org/extensions/xep-0045.html#modifymember
                     *
                     * Parameters:
                     *  (Object) members: A map of jids, affiliations and optionally reasons
                     *  (Function) onSuccess: callback for a succesful response
                     *  (Function) onError: callback for an error response
                     */
                    if (_.isEmpty(members)) {
                        // Succesfully updated with zero affilations :)
                        onSuccess(null);
                        return;
                    }
                    var affiliations = _.uniq(_.map(members, 'affiliation'));
                    var promises = _.map(affiliations, _.partial(this.setAffiliation.bind(this), _, members));
                    $.when.apply($, promises).done(onSuccess).fail(onError);
                },

                marshallAffiliationIQs: function () {
                    /* Marshall a list of IQ stanzas into a map of JIDs and
                     * affiliations.
                     *
                     * Parameters:
                     *  Any amount of XMLElement objects, representing the IQ
                     *  stanzas.
                     */
                    return _.flatMap(arguments, this.parseMemberListIQ);
                },

                getJidsWithAffiliations: function (affiliations) {
                    /* Returns a map of JIDs that have the affiliations
                     * as provided.
                     */
                    if (_.isString(affiliations)) {
                        affiliations = [affiliations];
                    }
                    var deferred = new $.Deferred();
                    var promises = _.map(affiliations, _.partial(this.requestMemberList, this.model.get('jid')));
                    $.when.apply($, promises).always(
                        _.flow(this.marshallAffiliationIQs.bind(this), deferred.resolve)
                    );
                    return deferred.promise();
                },

                updateMemberLists: function (members, affiliations, deltaFunc) {
                    /* Fetch the lists of users with the given affiliations.
                     * Then compute the delta between those users and
                     * the passed in members, and if it exists, send the delta
                     * to the XMPP server to update the member list.
                     *
                     * Parameters:
                     *  (Object) members: Map of member jids and affiliations.
                     *  (String|Array) affiliation: An array of affiliations or
                     *      a string if only one affiliation.
                     *  (Function) deltaFunc: The function to compute the delta
                     *      between old and new member lists.
                     *
                     * Returns:
                     *  A promise which is resolved once the list has been
                     *  updated or once it's been established there's no need
                     *  to update the list.
                     */
                    var that = this;
                    var deferred = new $.Deferred();
                    this.getJidsWithAffiliations(affiliations).then(function (old_members) {
                        that.setAffiliations(
                            deltaFunc(members, old_members),
                            deferred.resolve,
                            deferred.reject
                        );
                    });
                    return deferred.promise();
                },

                directInvite: function (recipient, reason) {
                    /* Send a direct invitation as per XEP-0249
                     *
                     * Parameters:
                     *    (String) recipient - JID of the person being invited
                     *    (String) reason - Optional reason for the invitation
                     */
                    if (this.model.get('membersonly')) {
                        // When inviting to a members-only room, we first add
                        // the person to the member list by giving them an
                        // affiliation of 'member' (if they're not affiliated
                        // already), otherwise they won't be able to join.
                        var map = {}; map[recipient] = 'member';
                        var deltaFunc = _.partial(this.computeAffiliationsDelta, true, false);
                        this.updateMemberLists(
                            [{'jid': recipient, 'affiliation': 'member', 'reason': reason}],
                            ['member', 'owner', 'admin'],
                            deltaFunc
                        );
                    }
                    var attrs = {
                        'xmlns': 'jabber:x:conference',
                        'jid': this.model.get('jid')
                    };
                    if (reason !== null) { attrs.reason = reason; }
                    if (this.model.get('password')) { attrs.password = this.model.get('password'); }
                    var invitation = $msg({
                        from: _converse.connection.jid,
                        to: recipient,
                        id: _converse.connection.getUniqueId()
                    }).c('x', attrs);
                    _converse.connection.send(invitation);
                    _converse.emit('roomInviteSent', {
                        'room': this,
                        'recipient': recipient,
                        'reason': reason
                    });
                },

                handleChatStateMessage: function (message) {
                    /* Override the method on the ChatBoxView base class to
                     * ignore <gone/> notifications in groupchats.
                     *
                     * As laid out in the business rules in XEP-0085
                     * http://xmpp.org/extensions/xep-0085.html#bizrules-groupchat
                     */
                    if (message.get('fullname') === this.model.get('nick')) {
                        // Don't know about other servers, but OpenFire sends
                        // back to you your own chat state notifications.
                        // We ignore them here...
                        return;
                    }
                    if (message.get('chat_state') !== _converse.GONE) {
                        _converse.ChatBoxView.prototype.handleChatStateMessage.apply(this, arguments);
                    }
                },

                sendChatState: function () {
                    /* Sends a message with the status of the user in this chat session
                     * as taken from the 'chat_state' attribute of the chat box.
                     * See XEP-0085 Chat State Notifications.
                     */
                    if (this.model.get('connection_status') !==  ROOMSTATUS.ENTERED) {
                        return;
                    }
                    var chat_state = this.model.get('chat_state');
                    if (chat_state === _converse.GONE) {
                        // <gone/> is not applicable within MUC context
                        return;
                    }
                    _converse.connection.send(
                        $msg({'to':this.model.get('jid'), 'type': 'groupchat'})
                            .c(chat_state, {'xmlns': Strophe.NS.CHATSTATES}).up()
                            .c('no-store', {'xmlns': Strophe.NS.HINTS}).up()
                            .c('no-permanent-store', {'xmlns': Strophe.NS.HINTS})
                    );
                },

                sendChatRoomMessage: function (text) {
                    /* Constuct a message stanza to be sent to this chat room,
                     * and send it to the server.
                     *
                     * Parameters:
                     *  (String) text: The message text to be sent.
                     */
                    var msgid = _converse.connection.getUniqueId();
                    var msg = $msg({
                        to: this.model.get('jid'),
                        from: _converse.connection.jid,
                        type: 'groupchat',
                        id: msgid
                    }).c("body").t(text).up()
                    .c("x", {xmlns: "jabber:x:event"}).c(_converse.COMPOSING);
                    _converse.connection.send(msg);
                    this.model.messages.create({
                        fullname: this.model.get('nick'),
                        sender: 'me',
                        time: moment().format(),
                        message: text,
                        msgid: msgid
                    });
                },

                modifyRole: function(room, nick, role, reason, onSuccess, onError) {
                    var item = $build("item", {nick: nick, role: role});
                    var iq = $iq({to: room, type: "set"}).c("query", {xmlns: Strophe.NS.MUC_ADMIN}).cnode(item.node);
                    if (reason !== null) { iq.c("reason", reason); }
                    return _converse.connection.sendIQ(iq.tree(), onSuccess, onError);
                },

                validateRoleChangeCommand: function (command, args) {
                    /* Check that a command to change a chat room user's role or
                     * affiliation has anough arguments.
                     */
                    // TODO check if first argument is valid
                    if (args.length < 1 || args.length > 2) {
                        this.showStatusNotification(
                            __("Error: the \""+command+"\" command takes two arguments, the user's nickname and optionally a reason."),
                            true
                        );
                        return false;
                    }
                    return true;
                },

                clearChatRoomMessages: function (ev) {
                    /* Remove all messages from the chat room UI.
                     */
                    if (!_.isUndefined(ev)) { ev.stopPropagation(); }
                    var result = confirm(__("Are you sure you want to clear the messages from this room?"));
                    if (result === true) {
                        this.$content.empty();
                    }
                    return this;
                },

                onCommandError: function () {
                    this.showStatusNotification(__("Error: could not execute the command"), true);
                },

                onMessageSubmitted: function (text) {
                    /* Gets called when the user presses enter to send off a
                     * message in a chat room.
                     *
                     * Parameters:
                     *    (String) text - The message text.
                     */
                    if (_converse.muc_disable_moderator_commands) {
                        return this.sendChatRoomMessage(text);
                    }
                    var match = text.replace(/^\s*/, "").match(/^\/(.*?)(?: (.*))?$/) || [false, '', ''],
                        args = match[2] && match[2].splitOnce(' ') || [],
                        command = match[1].toLowerCase();
                    switch (command) {
                        case 'admin':
                            if (!this.validateRoleChangeCommand(command, args)) { break; }
                            this.setAffiliation('admin',
                                    [{ 'jid': args[0],
                                       'reason': args[1]
                                    }]).fail(this.onCommandError.bind(this));
                            break;
                        case 'ban':
                            if (!this.validateRoleChangeCommand(command, args)) { break; }
                            this.setAffiliation('outcast',
                                    [{ 'jid': args[0],
                                       'reason': args[1]
                                    }]).fail(this.onCommandError.bind(this));
                            break;
                        case 'clear':
                            this.clearChatRoomMessages();
                            break;
                        case 'deop':
                            if (!this.validateRoleChangeCommand(command, args)) { break; }
                            this.modifyRole(
                                    this.model.get('jid'), args[0], 'occupant', args[1],
                                    undefined, this.onCommandError.bind(this));
                            break;
                        case 'help':
                            this.showHelpMessages([
                                '<strong>/admin</strong>: '   +__("Change user's affiliation to admin"),
                                '<strong>/ban</strong>: '     +__('Ban user from room'),
                                '<strong>/clear</strong>: '   +__('Remove messages'),
                                '<strong>/deop</strong>: '    +__('Change user role to occupant'),
                                '<strong>/help</strong>: '    +__('Show this menu'),
                                '<strong>/kick</strong>: '    +__('Kick user from room'),
                                '<strong>/me</strong>: '      +__('Write in 3rd person'),
                                '<strong>/member</strong>: '  +__('Grant membership to a user'),
                                '<strong>/mute</strong>: '    +__("Remove user's ability to post messages"),
                                '<strong>/nick</strong>: '    +__('Change your nickname'),
                                '<strong>/op</strong>: '      +__('Grant moderator role to user'),
                                '<strong>/owner</strong>: '   +__('Grant ownership of this room'),
                                '<strong>/revoke</strong>: '  +__("Revoke user's membership"),
                                '<strong>/subject</strong>: ' +__('Set room subject'),
                                '<strong>/topic</strong>: '   +__('Set room subject (alias for /subject)'),
                                '<strong>/voice</strong>: '   +__('Allow muted user to post messages')
                            ]);
                            break;
                        case 'kick':
                            if (!this.validateRoleChangeCommand(command, args)) { break; }
                            this.modifyRole(
                                    this.model.get('jid'), args[0], 'none', args[1],
                                    undefined, this.onCommandError.bind(this));
                            break;
                        case 'mute':
                            if (!this.validateRoleChangeCommand(command, args)) { break; }
                            this.modifyRole(
                                    this.model.get('jid'), args[0], 'visitor', args[1],
                                    undefined, this.onCommandError.bind(this));
                            break;
                        case 'member':
                            if (!this.validateRoleChangeCommand(command, args)) { break; }
                            this.setAffiliation('member',
                                    [{ 'jid': args[0],
                                       'reason': args[1]
                                    }]).fail(this.onCommandError.bind(this));
                            break;
                        case 'nick':
                            _converse.connection.send($pres({
                                from: _converse.connection.jid,
                                to: this.getRoomJIDAndNick(match[2]),
                                id: _converse.connection.getUniqueId()
                            }).tree());
                            break;
                        case 'owner':
                            if (!this.validateRoleChangeCommand(command, args)) { break; }
                            this.setAffiliation('owner',
                                    [{ 'jid': args[0],
                                       'reason': args[1]
                                    }]).fail(this.onCommandError.bind(this));
                            break;
                        case 'op':
                            if (!this.validateRoleChangeCommand(command, args)) { break; }
                            this.modifyRole(
                                    this.model.get('jid'), args[0], 'moderator', args[1],
                                    undefined, this.onCommandError.bind(this));
                            break;
                        case 'revoke':
                            if (!this.validateRoleChangeCommand(command, args)) { break; }
                            this.setAffiliation('none',
                                    [{ 'jid': args[0],
                                       'reason': args[1]
                                    }]).fail(this.onCommandError.bind(this));
                            break;
                        case 'topic':
                        case 'subject':
                            _converse.connection.send(
                                $msg({
                                    to: this.model.get('jid'),
                                    from: _converse.connection.jid,
                                    type: "groupchat"
                                }).c("subject", {xmlns: "jabber:client"}).t(match[2]).tree()
                            );
                            break;
                        case 'voice':
                            if (!this.validateRoleChangeCommand(command, args)) { break; }
                            this.modifyRole(
                                    this.model.get('jid'), args[0], 'occupant', args[1],
                                    undefined, this.onCommandError.bind(this));
                            break;
                        default:
                            this.sendChatRoomMessage(text);
                        break;
                    }
                },

                handleMUCMessage: function (stanza) {
                    /* Handler for all MUC messages sent to this chat room.
                     *
                     * Parameters:
                     *  (XMLElement) stanza: The message stanza.
                     */
                    var configuration_changed = stanza.querySelector("status[code='104']");
                    var logging_enabled = stanza.querySelector("status[code='170']");
                    var logging_disabled = stanza.querySelector("status[code='171']");
                    var room_no_longer_anon = stanza.querySelector("status[code='172']");
                    var room_now_semi_anon = stanza.querySelector("status[code='173']");
                    var room_now_fully_anon = stanza.querySelector("status[code='173']");
                    if (configuration_changed || logging_enabled || logging_disabled ||
                            room_no_longer_anon || room_now_semi_anon || room_now_fully_anon) {
                        this.getRoomFeatures();
                    }
                    _.flow(this.showStatusMessages.bind(this), this.onChatRoomMessage.bind(this))(stanza);
                    return true;
                },

                getRoomJIDAndNick: function (nick) {
                    /* Utility method to construct the JID for the current user
                     * as occupant of the room.
                     *
                     * This is the room JID, with the user's nick added at the
                     * end.
                     *
                     * For example: room@conference.example.org/nickname
                     */
                    if (nick) {
                        this.model.save({'nick': nick});
                    } else {
                        nick = this.model.get('nick');
                    }
                    var room = this.model.get('jid');
                    var node = Strophe.getNodeFromJid(room);
                    var domain = Strophe.getDomainFromJid(room);
                    return node + "@" + domain + (nick !== null ? "/" + nick : "");
                },

                registerHandlers: function () {
                    /* Register presence and message handlers for this chat
                     * room
                     */
                    var room_jid = this.model.get('jid');
                    this.removeHandlers();
                    this.presence_handler = _converse.connection.addHandler(
                        this.onChatRoomPresence.bind(this),
                        Strophe.NS.MUC, 'presence', null, null, room_jid,
                        {'ignoreNamespaceFragment': true, 'matchBareFromJid': true}
                    );
                    this.message_handler = _converse.connection.addHandler(
                        this.handleMUCMessage.bind(this),
                        null, 'message', null, null, room_jid,
                        {'matchBareFromJid': true}
                    );
                },

                removeHandlers: function () {
                    /* Remove the presence and message handlers that were
                     * registered for this chat room.
                     */
                    if (this.message_handler) {
                        _converse.connection.deleteHandler(this.message_handler);
                        delete this.message_handler;
                    }
                    if (this.presence_handler) {
                        _converse.connection.deleteHandler(this.presence_handler);
                        delete this.presence_handler;
                    }
                    return this;
                },

                join: function (nick, password) {
                    /* Join the chat room.
                     *
                     * Parameters:
                     *  (String) nick: The user's nickname
                     *  (String) password: Optional password, if required by
                     *      the room.
                     */
                    nick = nick ? nick : this.model.get('nick');
                    if (!nick) {
                        return this.checkForReservedNick();
                    }
                    if (this.model.get('connection_status') === ROOMSTATUS.ENTERED) {
                        // We have restored a chat room from session storage,
                        // so we don't send out a presence stanza again.
                        return this;
                    }
                    var stanza = $pres({
                        'from': _converse.connection.jid,
                        'to': this.getRoomJIDAndNick(nick)
                    }).c("x", {'xmlns': Strophe.NS.MUC})
                      .c("history", {'maxstanzas': _converse.muc_history_max_stanzas}).up();
                    if (password) {
                        stanza.cnode(Strophe.xmlElement("password", [], password));
                    }
                    this.model.save('connection_status', ROOMSTATUS.CONNECTING);
                    _converse.connection.send(stanza);
                    return this;
                },

                cleanup: function () {
                    if (_converse.connection.connected) {
                        this.model.save('connection_status', ROOMSTATUS.DISCONNECTED);
                    } else {
                        this.model.set('connection_status', ROOMSTATUS.DISCONNECTED);
                    }
                    this.removeHandlers();
                    _converse.ChatBoxView.prototype.close.apply(this, arguments);
                },

                leave: function(exit_msg) {
                    /* Leave the chat room.
                     *
                     * Parameters:
                     *  (String) exit_msg: Optional message to indicate your
                     *      reason for leaving.
                     */
                    this.hide();
                    this.occupantsview.model.reset();
                    this.occupantsview.model.browserStorage._clear();
                    if (!_converse.connection.connected ||
                            this.model.get('connection_status') === ROOMSTATUS.DISCONNECTED) {
                        // Don't send out a stanza if we're not connected.
                        this.cleanup();
                        return;
                    }
                    var presence = $pres({
                        type: "unavailable",
                        from: _converse.connection.jid,
                        to: this.getRoomJIDAndNick()
                    });
                    if (exit_msg !== null) {
                        presence.c("status", exit_msg);
                    }
                    _converse.connection.sendPresence(
                        presence,
                        this.cleanup.bind(this),
                        this.cleanup.bind(this),
                        2000
                    );
                },

                renderConfigurationForm: function (stanza) {
                    /* Renders a form given an IQ stanza containing the current
                     * room configuration.
                     *
                     * Returns a promise which resolves once the user has
                     * either submitted the form, or canceled it.
                     *
                     * Parameters:
                     *  (XMLElement) stanza: The IQ stanza containing the room config.
                     */
                    var that = this,
                        $body = this.$('.chatroom-body');
                    $body.children().addClass('hidden');
                    // Remove any existing forms
                    $body.find('form.chatroom-form').remove();
                    $body.append(tpl_chatroom_form());

                    var $form = $body.find('form.chatroom-form'),
                        $fieldset = $form.children('fieldset:first'),
                        $stanza = $(stanza),
                        $fields = $stanza.find('field'),
                        title = $stanza.find('title').text(),
                        instructions = $stanza.find('instructions').text();
                    $fieldset.find('span.spinner').remove();
                    $fieldset.append($('<legend>').text(title));
                    if (instructions && instructions !== title) {
                        $fieldset.append($('<p class="instructions">').text(instructions));
                    }
                    _.each($fields, function (field) {
                        $fieldset.append(utils.xForm2webForm($(field), $stanza));
                    });
                    $form.append('<fieldset></fieldset>');
                    $fieldset = $form.children('fieldset:last');
                    $fieldset.append('<input type="submit" class="pure-button button-primary" value="'+__('Save')+'"/>');
                    $fieldset.append('<input type="button" class="pure-button button-cancel" value="'+__('Cancel')+'"/>');
                    $fieldset.find('input[type=button]').on('click', function (ev) {
                        ev.preventDefault();
                        that.cancelConfiguration();
                    });
                    $form.on('submit', function (ev) {
                        ev.preventDefault();
                        that.saveConfiguration(ev.target);
                    });
                },

                sendConfiguration: function(config, onSuccess, onError) {
                    /* Send an IQ stanza with the room configuration.
                     *
                     * Parameters:
                     *  (Array) config: The room configuration
                     *  (Function) onSuccess: Callback upon succesful IQ response
                     *      The first parameter passed in is IQ containing the
                     *      room configuration.
                     *      The second is the response IQ from the server.
                     *  (Function) onError: Callback upon error IQ response
                     *      The first parameter passed in is IQ containing the
                     *      room configuration.
                     *      The second is the response IQ from the server.
                     */
                    var iq = $iq({to: this.model.get('jid'), type: "set"})
                        .c("query", {xmlns: Strophe.NS.MUC_OWNER})
                        .c("x", {xmlns: Strophe.NS.XFORM, type: "submit"});
                    _.each(config || [], function (node) { iq.cnode(node).up(); });
                    onSuccess = _.isUndefined(onSuccess) ? _.noop : _.partial(onSuccess, iq.nodeTree);
                    onError = _.isUndefined(onError) ? _.noop : _.partial(onError, iq.nodeTree);
                    return _converse.connection.sendIQ(iq, onSuccess, onError);
                },

                saveConfiguration: function (form) {
                    /* Submit the room configuration form by sending an IQ
                     * stanza to the server.
                     *
                     * Returns a promise which resolves once the XMPP server
                     * has return a response IQ.
                     *
                     * Parameters:
                     *  (HTMLElement) form: The configuration form DOM element.
                     */
                    var deferred = new $.Deferred();
                    var that = this;
                    var $inputs = $(form).find(':input:not([type=button]):not([type=submit])'),
                        configArray = [];
                    $inputs.each(function () {
                        configArray.push(utils.webForm2xForm(this));
                    });
                    this.sendConfiguration(
                        configArray,
                        deferred.resolve,
                        deferred.reject
                    );
                    this.$el.find('div.chatroom-form-container').hide(
                        function () {
                            $(this).remove();
                            that.renderAfterTransition();
                        });
                    return deferred.promise();
                },

                autoConfigureChatRoom: function () {
                    /* Automatically configure room based on the
                     * 'roomconfig' data on this view's model.
                     *
                     * Returns a promise which resolves once a response IQ has
                     * been received.
                     *
                     * Parameters:
                     *  (XMLElement) stanza: IQ stanza from the server,
                     *       containing the configuration.
                     */
                    var that = this,
                        deferred = new $.Deferred();

                    this.fetchRoomConfiguration().then(function (stanza) {
                        var configArray = [],
                            fields = stanza.querySelectorAll('field'),
                            count = fields.length,
                            config = that.model.get('roomconfig');

                        _.each(fields, function (field) {
                            var fieldname = field.getAttribute('var').replace('muc#roomconfig_', ''),
                                type = field.getAttribute('type'),
                                value;
                            if (fieldname in config) {
                                switch (type) {
                                    case 'boolean':
                                        value = config[fieldname] ? 1 : 0;
                                        break;
                                    case 'list-multi':
                                        // TODO: we don't yet handle "list-multi" types
                                        value = field.innerHTML;
                                        break;
                                    default:
                                        value = config[fieldname];
                                }
                                field.innerHTML = $build('value').t(value);
                            }
                            configArray.push(field);
                            if (!--count) {
                                that.sendConfiguration(
                                    configArray,
                                    deferred.resolve,
                                    deferred.reject
                                );
                            }
                        });
                    });
                    return deferred;
                },

                cancelConfiguration: function () {
                    /* Remove the configuration form without submitting and
                     * return to the chat view.
                     */
                    var that = this;
                    this.$el.find('div.chatroom-form-container').hide(
                        function () {
                            $(this).remove();
                            that.renderAfterTransition();
                        });
                },

                fetchRoomConfiguration: function (handler) {
                    /* Send an IQ stanza to fetch the room configuration data.
                     * Returns a promise which resolves once the response IQ
                     * has been received.
                     *
                     * Parameters:
                     *  (Function) handler: The handler for the response IQ
                     */
                    var that = this;
                    var deferred = new $.Deferred();
                    _converse.connection.sendIQ(
                        $iq({
                            'to': this.model.get('jid'),
                            'type': "get"
                        }).c("query", {xmlns: Strophe.NS.MUC_OWNER}),
                        function (iq) {
                            if (handler) {
                                handler.apply(that, arguments);
                            }
                            deferred.resolve(iq);
                        },
                        deferred.reject // errback
                    );
                    return deferred.promise();
                },

                getRoomFeatures: function () {
                    /* Fetch the room disco info, parse it and then
                     * save it on the Backbone.Model of this chat rooms.
                     */
                    var deferred = new $.Deferred();
                    var that = this;
                    _converse.connection.disco.info(this.model.get('jid'), null,
                        function (iq) {
                            /* See http://xmpp.org/extensions/xep-0045.html#disco-roominfo
                             *
                             *  <identity
                             *      category='conference'
                             *      name='A Dark Cave'
                             *      type='text'/>
                             *  <feature var='http://jabber.org/protocol/muc'/>
                             *  <feature var='muc_passwordprotected'/>
                             *  <feature var='muc_hidden'/>
                             *  <feature var='muc_temporary'/>
                             *  <feature var='muc_open'/>
                             *  <feature var='muc_unmoderated'/>
                             *  <feature var='muc_nonanonymous'/>
                             *  <feature var='urn:xmpp:mam:0'/>
                             */
                            var features = {
                                'features_fetched': true
                            };
                            _.each(iq.querySelectorAll('feature'), function (field) {
                                var fieldname = field.getAttribute('var');
                                if (!fieldname.startsWith('muc_')) {
                                    if (fieldname === Strophe.NS.MAM) {
                                        features.mam_enabled = true;
                                    }
                                    return;
                                }
                                features[fieldname.replace('muc_', '')] = true;
                            });
                            var desc_field = iq.querySelector('field[var="muc#roominfo_description"] value');
                            if (!_.isNull(desc_field)) {
                                features.description = desc_field.textContent;
                            }
                            that.model.save(features);
                            return deferred.resolve();
                        },
                        deferred.reject,
                        5000
                    );
                    return deferred.promise();
                },

                getAndRenderConfigurationForm: function (ev) {
                    /* Start the process of configuring a chat room, either by
                     * rendering a configuration form, or by auto-configuring
                     * based on the "roomconfig" data stored on the
                     * Backbone.Model.
                     *
                     * Stores the new configuration on the Backbone.Model once
                     * completed.
                     *
                     * Paremeters:
                     *  (Event) ev: DOM event that might be passed in if this
                     *      method is called due to a user action. In this
                     *      case, auto-configure won't happen, regardless of
                     *      the settings.
                     */
                    this.showSpinner();
                    this.fetchRoomConfiguration().then(
                        this.renderConfigurationForm.bind(this));
                },

                submitNickname: function (ev) {
                    /* Get the nickname value from the form and then join the
                     * chat room with it.
                     */
                    ev.preventDefault();
                    var $nick = this.$el.find('input[name=nick]');
                    var nick = $nick.val();
                    if (!nick) {
                        $nick.addClass('error');
                        return;
                    }
                    else {
                        $nick.removeClass('error');
                    }
                    this.$el.find('.chatroom-form-container')
                            .replaceWith('<span class="spinner centered"/>');
                    this.join(nick);
                },

                checkForReservedNick: function () {
                    /* User service-discovery to ask the XMPP server whether
                     * this user has a reserved nickname for this room.
                     * If so, we'll use that, otherwise we render the nickname
                     * form.
                     */
                    this.showSpinner();
                    _converse.connection.sendIQ(
                        $iq({
                            'to': this.model.get('jid'),
                            'from': _converse.connection.jid,
                            'type': "get"
                        }).c("query", {
                            'xmlns': Strophe.NS.DISCO_INFO,
                            'node': 'x-roomuser-item'
                        }),
                        this.onNickNameFound.bind(this),
                        this.onNickNameNotFound.bind(this)
                    );
                    return this;
                },

                onNickNameFound: function (iq) {
                    /* We've received an IQ response from the server which
                     * might contain the user's reserved nickname.
                     * If no nickname is found we either render a form for
                     * them to specify one, or we try to join the room with the
                     * node of the user's JID.
                     *
                     * Parameters:
                     *  (XMLElement) iq: The received IQ stanza
                     */
                    var nick = $(iq)
                        .find('query[node="x-roomuser-item"] identity')
                        .attr('name');
                    if (!nick) {
                        this.onNickNameNotFound();
                    } else {
                        this.join(nick);
                    }
                },

                onNickNameNotFound: function (message) {
                    if (_converse.muc_nickname_from_jid) {
                        // We try to enter the room with the node part of
                        // the user's JID.
                        this.join(Strophe.unescapeNode(Strophe.getNodeFromJid(_converse.bare_jid)));
                    } else {
                        this.renderNicknameForm(message);
                    }
                },

                getDefaultNickName: function () {
                    /* The default nickname (used when muc_nickname_from_jid is true)
                     * is the node part of the user's JID.
                     * We put this in a separate method so that it can be
                     * overridden by plugins.
                     */
                    return Strophe.unescapeNode(Strophe.getNodeFromJid(_converse.bare_jid));
                },

                onNicknameClash: function (presence) {
                    /* When the nickname is already taken, we either render a
                     * form for the user to choose a new nickname, or we
                     * try to make the nickname unique by adding an integer to
                     * it. So john will become john-2, and then john-3 and so on.
                     *
                     * Which option is take depends on the value of
                     * muc_nickname_from_jid.
                     */
                    if (_converse.muc_nickname_from_jid) {
                        var nick = presence.getAttribute('from').split('/')[1];
                        if (nick === this.getDefaultNickName()) {
                            this.join(nick + '-2');
                        } else {
                            var del= nick.lastIndexOf("-");
                            var num = nick.substring(del+1, nick.length);
                            this.join(nick.substring(0, del+1) + String(Number(num)+1));
                        }
                    } else {
                        this.renderNicknameForm(
                            __("The nickname you chose is reserved or "+
                               "currently in use, please choose a different one.")
                        );
                    }
                },

                renderNicknameForm: function (message) {
                    /* Render a form which allows the user to choose their
                     * nickname.
                     */
                    this.$('.chatroom-body').children().addClass('hidden');
                    this.$('span.centered.spinner').remove();
                    if (!_.isString(message)) {
                        message = '';
                    }
                    this.$('.chatroom-body').append(
                        tpl_chatroom_nickname_form({
                            heading: __('Please choose your nickname'),
                            label_nickname: __('Nickname'),
                            label_join: __('Enter room'),
                            validation_message: message
                        }));
                    this.model.save('connection_status', ROOMSTATUS.NICKNAME_REQUIRED);
                    this.$('.chatroom-form').on('submit', this.submitNickname.bind(this));
                },

                submitPassword: function (ev) {
                    ev.preventDefault();
                    var password = this.$el.find('.chatroom-form').find('input[type=password]').val();
                    this.$el.find('.chatroom-form-container').replaceWith('<span class="spinner centered"/>');
                    this.join(this.model.get('nick'), password);
                },

                renderPasswordForm: function () {
                    this.$('.chatroom-body').children().addClass('hidden');
                    this.$('span.centered.spinner').remove();
                    this.$('.chatroom-body').append(
                        tpl_chatroom_password_form({
                            heading: __('This chatroom requires a password'),
                            label_password: __('Password: '),
                            label_submit: __('Submit')
                        }));
                    this.model.save('connection_status', ROOMSTATUS.PASSWORD_REQUIRED);
                    this.$('.chatroom-form').on('submit', this.submitPassword.bind(this));
                },

                showDisconnectMessage: function (msg) {
                    this.$('.chat-area').addClass('hidden');
                    this.$('.occupants').addClass('hidden');
                    this.$('span.centered.spinner').remove();
                    this.$('.chatroom-body').append(tpl_chatroom_disconnect({
                        'disconnect_message': msg
                    }));
                },

                getMessageFromStatus: function (stat, stanza, is_self) {
                    /* Parameters:
                     *  (XMLElement) stat: A <status> element.
                     *  (Boolean) is_self: Whether the element refers to the
                     *                     current user.
                     *  (XMLElement) stanza: The original stanza received.
                     */
                    var code = stat.getAttribute('code'), nick;
                    if (code === '110') { return; }
                    if (code in _converse.muc.info_messages) {
                        return _converse.muc.info_messages[code];
                    }
                    if (!is_self) {
                        if (code in _converse.muc.action_info_messages) {
                            nick = Strophe.getResourceFromJid(stanza.getAttribute('from'));
                            return __(_converse.muc.action_info_messages[code], nick);
                        }
                    } else if (code in _converse.muc.new_nickname_messages) {
                        if (is_self && code === "210") {
                            nick = Strophe.getResourceFromJid(stanza.getAttribute('from'));
                        } else if (is_self && code === "303") {
                            nick = stanza.querySelector('x item').getAttribute('nick');
                        }
                        return __(_converse.muc.new_nickname_messages[code], nick);
                    }
                    return;
                },

                saveAffiliationAndRole: function (pres) {
                    /* Parse the presence stanza for the current user's
                     * affiliation.
                     *
                     * Parameters:
                     *  (XMLElement) pres: A <presence> stanza.
                     */
                    var item = sizzle('x[xmlns="'+Strophe.NS.MUC_USER+'"] item', pres).pop();
                    if (_.isNil(item)) { return; }
                    var jid = item.getAttribute('jid');
                    if (Strophe.getBareJidFromJid(jid) === _converse.bare_jid) {
                        var affiliation = item.getAttribute('affiliation');
                        var role = item.getAttribute('role');
                        if (affiliation) {
                            this.model.save({'affiliation': affiliation});
                        }
                        if (role) {
                            this.model.save({'role': role});
                        }
                    }
                },

                parseXUserElement: function (x, stanza, is_self) {
                    /* Parse the passed-in <x xmlns='http://jabber.org/protocol/muc#user'>
                     * element and construct a map containing relevant
                     * information.
                     */
                    // 1. Get notification messages based on the <status> elements.
                    var statuses = x.querySelectorAll('status');
                    var mapper = _.partial(this.getMessageFromStatus, _, stanza, is_self);
                    var notification = {};
                    var messages = _.reject(_.map(statuses, mapper), _.isUndefined);
                    if (messages.length) {
                        notification.messages = messages;
                    }
                    // 2. Get disconnection messages based on the <status> elements
                    var codes = _.invokeMap(statuses, Element.prototype.getAttribute, 'code');
                    var disconnection_codes = _.intersection(codes, _.keys(_converse.muc.disconnect_messages));
                    var disconnected = is_self && disconnection_codes.length > 0;
                    if (disconnected) {
                        notification.disconnected = true;
                        notification.disconnection_message = _converse.muc.disconnect_messages[disconnection_codes[0]];
                    }
                    // 3. Find the reason and actor from the <item> element
                    var item = x.querySelector('item');
                    // By using querySelector above, we assume here there is
                    // one <item> per <x xmlns='http://jabber.org/protocol/muc#user'>
                    // element. This appears to be a safe assumption, since
                    // each <x/> element pertains to a single user.
                    if (!_.isNull(item)) {
                        var reason = item.querySelector('reason');
                        if (reason) {
                            notification.reason = reason ? reason.textContent : undefined;
                        }
                        var actor = item.querySelector('actor');
                        if (actor) {
                            notification.actor = actor ? actor.getAttribute('nick') : undefined;
                        }
                    }
                    return notification;
                },

                displayNotificationsforUser: function (notification) {
                    /* Given the notification object generated by
                     * parseXUserElement, display any relevant messages and
                     * information to the user.
                     */
                    var that = this;
                    if (notification.disconnected) {
                        this.showDisconnectMessage(notification.disconnection_message);
                        if (notification.actor) {
                            this.showDisconnectMessage(__(___('This action was done by %1$s.'), notification.actor));
                        }
                        if (notification.reason) {
                            this.showDisconnectMessage(__(___('The reason given is: "%1$s".'), notification.reason));
                        }
                        this.model.save('connection_status', ROOMSTATUS.DISCONNECTED);
                        return;
                    }
                    _.each(notification.messages, function (message) {
                        that.$content.append(tpl_info({'message': message}));
                    });
                    if (notification.reason) {
                        this.showStatusNotification(__('The reason given is: "'+notification.reason+'"'), true);
                    }
                    if (notification.messages.length) {
                        this.scrollDown();
                    }
                },

                getJoinLeaveMessages: function (stanza) {
                    /* Parse the given stanza and return notification messages
                     * for join/leave events.
                     */
                    // XXX: some mangling required to make the returned
                    // result look like the structure returned by
                    // parseXUserElement. Not nice...
                    var nick = Strophe.getResourceFromJid(stanza.getAttribute('from'));
                    var stat = stanza.querySelector('status');
                    if (stanza.getAttribute('type') === 'unavailable') {
                        if (!_.isNull(stat) && stat.textContent) {
                            return [{'messages': [__(nick+' has left the room. "'+stat.textContent+'"')]}];
                        } else {
                            return [{'messages': [__(nick+' has left the room')]}];
                        }
                    }
                    if (!this.occupantsview.model.find({'nick': nick})) {
                        // Only show join message if we don't already have the
                        // occupant model. Doing so avoids showing duplicate
                        // join messages.
                        if (!_.isNull(stat) && stat.textContent) {
                            return [{'messages': [__(nick+' has joined the room. "'+stat.textContent+'"')]}];
                        } else {
                            return [{'messages': [__(nick+' has joined the room.')]}];
                        }
                    }
                },

                showStatusMessages: function (stanza) {
                    /* Check for status codes and communicate their purpose to the user.
                     * See: http://xmpp.org/registrar/mucstatus.html
                     *
                     * Parameters:
                     *  (XMLElement) stanza: The message or presence stanza
                     *      containing the status codes.
                     */
                    var elements = sizzle('x[xmlns="'+Strophe.NS.MUC_USER+'"]', stanza);
                    var is_self = stanza.querySelectorAll("status[code='110']").length;
                    var iteratee = _.partial(this.parseXUserElement.bind(this), _, stanza, is_self);
                    var notifications = _.reject(_.map(elements, iteratee), _.isEmpty);
                    if (_.isEmpty(notifications) &&
                            _converse.muc_show_join_leave &&
                            stanza.nodeName === 'presence' &&
                            this.model.get('connection_status') === ROOMSTATUS.ENTERED
                        ) {
                        notifications = this.getJoinLeaveMessages(stanza);
                    }
                    _.each(notifications, this.displayNotificationsforUser.bind(this));
                    return stanza;
                },

                showErrorMessage: function (presence) {
                    // We didn't enter the room, so we must remove it from the MUC add-on
                    var error = presence.querySelector('error');
                    if (error.getAttribute('type') === 'auth') {
                        if (!_.isNull(error.querySelector('not-authorized'))) {
                            this.renderPasswordForm();
                        } else if (!_.isNull(error.querySelector('registration-required'))) {
                            this.showDisconnectMessage(__('You are not on the member list of this room.'));
                        } else if (!_.isNull(error.querySelector('forbidden'))) {
                            this.showDisconnectMessage(__('You have been banned from this room.'));
                        }
                    } else if (error.getAttribute('type') === 'modify') {
                        if (!_.isNull(error.querySelector('jid-malformed'))) {
                            this.showDisconnectMessage(__('No nickname was specified.'));
                        }
                    } else if (error.getAttribute('type') === 'cancel') {
                        if (!_.isNull(error.querySelector('not-allowed'))) {
                            this.showDisconnectMessage(__('You are not allowed to create new rooms.'));
                        } else if (!_.isNull(error.querySelector('not-acceptable'))) {
                            this.showDisconnectMessage(__("Your nickname doesn't conform to this room's policies."));
                        } else if (!_.isNull(error.querySelector('conflict'))) {
                            this.onNicknameClash(presence);
                        } else if (!_.isNull(error.querySelector('item-not-found'))) {
                            this.showDisconnectMessage(__("This room does not (yet) exist."));
                        } else if (!_.isNull(error.querySelector('service-unavailable'))) {
                            this.showDisconnectMessage(__("This room has reached its maximum number of occupants."));
                        }
                    }
                },

                renderAfterTransition: function () {
                    /* Rerender the room after some kind of transition. For
                     * example after the spinner has been removed or after a
                     * form has been submitted and removed.
                     */
                    if (this.model.get('connection_status') == ROOMSTATUS.NICKNAME_REQUIRED) {
                        this.renderNicknameForm();
                    } else if (this.model.get('connection_status') == ROOMSTATUS.PASSWORD_REQUIRED) {
                        this.renderPasswordForm();
                    } else {
                        this.$el.find('.chat-area').removeClass('hidden');
                        this.$el.find('.occupants').removeClass('hidden');
                        this.occupantsview.setOccupantsHeight();
                        this.scrollDown();
                    }
                },

                showSpinner: function () {
                    this.$('.chatroom-body').children().addClass('hidden');
                    this.$el.find('.chatroom-body').prepend('<span class="spinner centered"/>');
                },

                hideSpinner: function () {
                    /* Check if the spinner is being shown and if so, hide it.
                     * Also make sure then that the chat area and occupants
                     * list are both visible.
                     */
                    var spinner = this.el.querySelector('.spinner');
                    if (!_.isNull(spinner)) {
                        spinner.parentNode.removeChild(spinner);
                        this.renderAfterTransition();
                    }
                    return this;
                },

                onOwnChatRoomPresence: function (pres) {
                    /* Handles a received presence relating to the current
                     * user.
                     *
                     * For locked rooms (which are by definition "new"), the
                     * room will either be auto-configured or created instantly
                     * (with default config) or a configuration room will be
                     * rendered.
                     *
                     * If the room is not locked, then the room will be
                     * auto-configured only if applicable and if the current
                     * user is the room's owner.
                     *
                     * Parameters:
                     *  (XMLElement) pres: The stanza
                     */
                    this.saveAffiliationAndRole(pres);

                    var locked_room = pres.querySelector("status[code='201']");
                    if (locked_room) {
                        if (this.model.get('auto_configure')) {
                            this.autoConfigureChatRoom().then(this.getRoomFeatures.bind(this));
                        } else if (_converse.muc_instant_rooms) {
                            // Accept default configuration
                            this.saveConfiguration().then(this.getRoomFeatures.bind(this));
                        } else {
                            this.getAndRenderConfigurationForm();
                            return; // We haven't yet entered the room, so bail here.
                        }
                    } else if (!this.model.get('features_fetched')) {
                        // The features for this room weren't fetched.
                        // That must mean it's a new room without locking 
                        // (in which case Prosody doesn't send a 201 status),
                        // otherwise the features would have been fetched in
                        // the "initialize" method already.
                        if (this.model.get('affiliation') === 'owner' && this.model.get('auto_configure')) {
                            this.autoConfigureChatRoom().then(this.getRoomFeatures.bind(this));
                        } else {
                            this.getRoomFeatures();
                        }
                    }
                    this.model.save('connection_status', ROOMSTATUS.ENTERED);
                },

                onChatRoomPresence: function (pres) {
                    /* Handles all MUC presence stanzas.
                     *
                     * Parameters:
                     *  (XMLElement) pres: The stanza
                     */
                    if (pres.getAttribute('type') === 'error') {
                        this.model.save('connection_status', ROOMSTATUS.DISCONNECTED);
                        this.showErrorMessage(pres);
                        return true;
                    }
                    var is_self = pres.querySelector("status[code='110']");
                    if (is_self && pres.getAttribute('type') !== 'unavailable') {
                        this.onOwnChatRoomPresence(pres);
                    }
                    this.hideSpinner().showStatusMessages(pres);
                    // This must be called after showStatusMessages so that
                    // "join" messages are correctly shown.
                    this.occupantsview.updateOccupantsOnPresence(pres);
                    if (this.model.get('role') !== 'none' &&
                            this.model.get('connection_status') === ROOMSTATUS.CONNECTING) {
                        this.model.save('connection_status', ROOMSTATUS.CONNECTED);
                    }
                    return true;
                },

                setChatRoomSubject: function (sender, subject) {
                    // For translators: the %1$s and %2$s parts will get
                    // replaced by the user and topic text respectively
                    // Example: Topic set by JC Brand to: Hello World!
                    this.$content.append(
                        tpl_info({'message': __('Topic set by %1$s to: %2$s', sender, subject)}));
                    this.scrollDown();
                },

                onChatRoomMessage: function (message) {
                    /* Given a <message> stanza, create a message
                     * Backbone.Model if appropriate.
                     *
                     * Parameters:
                     *  (XMLElement) msg: The received message stanza
                     */
                    var original_stanza = message,
                        forwarded = message.querySelector('forwarded'),
                        delay;
                    if (!_.isNull(forwarded)) {
                        message = forwarded.querySelector('message');
                        delay = forwarded.querySelector('delay');
                    }
                    var jid = message.getAttribute('from'),
                        msgid = message.getAttribute('id'),
                        resource = Strophe.getResourceFromJid(jid),
                        sender = resource && Strophe.unescapeNode(resource) || '',
                        subject = _.propertyOf(message.querySelector('subject'))('textContent'),
                        dupes = msgid && this.model.messages.filter(function (msg) {
                            // Find duplicates.
                            // Some bots (like HAL in the prosody chatroom)
                            // respond to commands with the same ID as the
                            // original message. So we also check the sender.
                            return msg.get('msgid') === msgid && msg.get('fullname') === sender;
                        });
                    if (dupes && dupes.length) {
                        return true;
                    }
                    if (subject) {
                        this.setChatRoomSubject(sender, subject);
                    }
                    if (sender === '') {
                        return true;
                    }
                    this.model.createMessage(message, delay, original_stanza);
                    if (sender !== this.model.get('nick')) {
                        // We only emit an event if it's not our own message
                        _converse.emit('message', original_stanza);
                    }
                    return true;
                }
            });

            _converse.ChatRoomOccupant = Backbone.Model.extend({
                initialize: function (attributes) {
                    this.set(_.extend({
                        'id': _converse.connection.getUniqueId(),
                    }, attributes));
                }
            });

            _converse.ChatRoomOccupantView = Backbone.View.extend({
                tagName: 'li',
                initialize: function () {
                    this.model.on('change', this.render, this);
                    this.model.on('destroy', this.destroy, this);
                },

                render: function () {
                    var show = this.model.get('show') || 'online';
                    var new_el = tpl_occupant(
                        _.extend(
                            { 'jid': '',
                              'show': show,
                              'hint_show': _converse.PRETTY_CHAT_STATUS[show],
                              'hint_occupant': __('Click to mention '+this.model.get('nick')+' in your message.'),
                              'desc_moderator': __('This user is a moderator.'),
                              'desc_occupant': __('This user can send messages in this room.'),
                              'desc_visitor': __('This user can NOT send messages in this room.')
                            }, this.model.toJSON()
                        )
                    );
                    var $parents = this.$el.parents();
                    if ($parents.length) {
                        this.$el.replaceWith(new_el);
                        this.setElement($parents.first().children('#'+this.model.get('id')), true);
                        this.delegateEvents();
                    } else {
                        this.$el.replaceWith(new_el);
                        this.setElement(new_el, true);
                    }
                    return this;
                },

                destroy: function () {
                    this.$el.remove();
                }
            });

            _converse.ChatRoomOccupants = Backbone.Collection.extend({
                model: _converse.ChatRoomOccupant
            });

            _converse.ChatRoomOccupantsView = Backbone.Overview.extend({
                tagName: 'div',
                className: 'occupants',

                initialize: function () {
                    this.model.on("add", this.onOccupantAdded, this);
                    this.chatroomview = this.model.chatroomview;
                    this.chatroomview.model.on('change:open', this.renderInviteWidget, this);
                    this.chatroomview.model.on('change:affiliation', this.renderInviteWidget, this);
                    this.chatroomview.model.on('change:hidden', this.onFeatureChanged, this);
                    this.chatroomview.model.on('change:mam_enabled', this.onFeatureChanged, this);
                    this.chatroomview.model.on('change:membersonly', this.onFeatureChanged, this);
                    this.chatroomview.model.on('change:moderated', this.onFeatureChanged, this);
                    this.chatroomview.model.on('change:nonanonymous', this.onFeatureChanged, this);
                    this.chatroomview.model.on('change:open', this.onFeatureChanged, this);
                    this.chatroomview.model.on('change:passwordprotected', this.onFeatureChanged, this);
                    this.chatroomview.model.on('change:persistent', this.onFeatureChanged, this);
                    this.chatroomview.model.on('change:public', this.onFeatureChanged, this);
                    this.chatroomview.model.on('change:semianonymous', this.onFeatureChanged, this);
                    this.chatroomview.model.on('change:temporary', this.onFeatureChanged, this);
                    this.chatroomview.model.on('change:unmoderated', this.onFeatureChanged, this);
                    this.chatroomview.model.on('change:unsecured', this.onFeatureChanged, this);
                },

                render: function () {
                    this.el.innerHTML = tpl_chatroom_sidebar(
                        _.extend(this.chatroomview.model.toJSON(), {
                            'allow_muc_invitations': _converse.allow_muc_invitations,
                            'label_occupants': __('Occupants')
                        })
                    );
                    if (_converse.allow_muc_invitations) {
                        _converse.api.waitUntil('rosterContactsFetched').then(
                            this.renderInviteWidget.bind(this)
                        );
                    }
                    return this.renderRoomFeatures();
                },

                renderInviteWidget: function () {
                    var form = this.el.querySelector('form.room-invite');
                    if (this.shouldInviteWidgetBeShown()) {
                        if (_.isNull(form)) {
                            var heading = this.el.querySelector('.occupants-heading');
                            form = tpl_chatroom_invite({
                                'label_invitation': __('Invite'),
                            });
                            heading.insertAdjacentHTML('afterend', form);
                            this.initInviteWidget();
                        }
                    } else {
                        if (!_.isNull(form)) {
                            form.remove();
                        }
                    }
                    return this;
                },

                renderRoomFeatures: function () {
                    var picks = _.pick(this.chatroomview.model.attributes, ROOM_FEATURES),
                        iteratee = function (a, v) { return a || v; },
                        el = this.el.querySelector('.chatroom-features');

                    el.innerHTML = tpl_chatroom_features(
                            _.extend(this.chatroomview.model.toJSON(), {
                                'has_features': _.reduce(_.values(picks), iteratee),
                                'label_features': __('Features'),
                                'label_hidden': __('Hidden'),
                                'label_mam_enabled': __('Message archiving'),
                                'label_membersonly': __('Members only'),
                                'label_moderated': __('Moderated'),
                                'label_nonanonymous': __('Non-anonymous'),
                                'label_open': __('Open'),
                                'label_passwordprotected': __('Password protected'),
                                'label_persistent': __('Persistent'),
                                'label_public': __('Public'),
                                'label_semianonymous': __('Semi-anonymous'),
                                'label_temporary': __('Temporary'),
                                'label_unmoderated': __('Unmoderated'),
                                'label_unsecured': __('Unsecured'),
                                'tt_hidden': __('This room is not publicly searchable'),
                                'tt_mam_enabled': __('Messages are archived on the server'),
                                'tt_membersonly': __('This room is restricted to members only'),
                                'tt_moderated': __('This room is being moderated'),
                                'tt_nonanonymous': __('All other room occupants can see your Jabber ID'),
                                'tt_open': __('Anyone can join this room'),
                                'tt_passwordprotected': __('This room requires a password before entry'),
                                'tt_persistent': __('This room persists even if it\'s unoccupied'),
                                'tt_public': __('This room is publicly searchable'),
                                'tt_semianonymous': __('Only moderators can see your Jabber ID'),
                                'tt_temporary': __('This room will disappear once the last person leaves'),
                                'tt_unmoderated': __('This room is not being moderated'),
                                'tt_unsecured': __('This room does not require a password upon entry')
                            }));
                    this.setOccupantsHeight();
                    return this;
                },

                onFeatureChanged: function (model) {
                    /* When a feature has been changed, it's logical opposite
                     * must be set to the opposite value.
                     *
                     * So for example, if "temporary" was set to "false", then
                     * "persistent" will be set to "true" in this method.
                     *
                     * Additionally a debounced render method is called to make
                     * sure the features widget gets updated.
                     */
                    if (_.isUndefined(this.debouncedRenderRoomFeatures)) {
                        this.debouncedRenderRoomFeatures = _.debounce(
                            this.renderRoomFeatures, 100, {'leading': false}
                        );
                    }
                    var changed_features = {};
                    _.each(_.keys(model.changed), function (k) {
                        if (!_.isNil(ROOM_FEATURES_MAP[k])) {
                            changed_features[ROOM_FEATURES_MAP[k]] = !model.changed[k];
                        }
                    });
                    this.chatroomview.model.save(changed_features, {'silent': true});
                    this.debouncedRenderRoomFeatures();
                },


                setOccupantsHeight: function () {
                    var el = this.el.querySelector('.chatroom-features');
                    this.el.querySelector('.occupant-list').style.cssText =
                        'height: calc(100% - '+el.offsetHeight+'px - 5em);';
                },

                onOccupantAdded: function (item) {
                    var view = this.get(item.get('id'));
                    if (!view) {
                        view = this.add(item.get('id'), new _converse.ChatRoomOccupantView({model: item}));
                    } else {
                        delete view.model; // Remove ref to old model to help garbage collection
                        view.model = item;
                        view.initialize();
                    }
                    this.$('.occupant-list').append(view.render().$el);
                },

                parsePresence: function (pres) {
                    var id = Strophe.getResourceFromJid(pres.getAttribute("from"));
                    var data = {
                        nick: id,
                        type: pres.getAttribute("type"),
                        states: []
                    };
                    _.each(pres.childNodes, function (child) {
                        switch (child.nodeName) {
                            case "status":
                                data.status = child.textContent || null;
                                break;
                            case "show":
                                data.show = child.textContent || 'online';
                                break;
                            case "x":
                                if (child.getAttribute("xmlns") === Strophe.NS.MUC_USER) {
                                    _.each(child.childNodes, function (item) {
                                        switch (item.nodeName) {
                                            case "item":
                                                data.affiliation = item.getAttribute("affiliation");
                                                data.role = item.getAttribute("role");
                                                data.jid = item.getAttribute("jid");
                                                data.nick = item.getAttribute("nick") || data.nick;
                                                break;
                                            case "status":
                                                if (item.getAttribute("code")) {
                                                    data.states.push(item.getAttribute("code"));
                                                }
                                        }
                                    });
                                }
                        }
                    });
                    return data;
                },

                findOccupant: function (data) {
                    /* Try to find an existing occupant based on the passed in
                     * data object.
                     *
                     * If we have a JID, we use that as lookup variable,
                     * otherwise we use the nick. We don't always have both,
                     * but should have at least one or the other.
                     */
                    var jid = Strophe.getBareJidFromJid(data.jid);
                    if (jid !== null) {
                        return this.model.where({'jid': jid}).pop();
                    } else {
                        return this.model.where({'nick': data.nick}).pop();
                    }
                },

                updateOccupantsOnPresence: function (pres) {
                    /* Given a presence stanza, update the occupant models
                     * based on its contents.
                     *
                     * Parameters:
                     *  (XMLElement) pres: The presence stanza
                     */
                    var data = this.parsePresence(pres);
                    if (data.type === 'error') {
                        return true;
                    }
                    var occupant = this.findOccupant(data);
                    switch (data.type) {
                        case 'unavailable':
                            if (occupant) { occupant.destroy(); }
                            break;
                        default:
                            var jid = Strophe.getBareJidFromJid(data.jid);
                            var attributes = _.extend(data, {
                                'jid': jid ? jid : undefined,
                                'resource': data.jid ? Strophe.getResourceFromJid(data.jid) : undefined
                            });
                            if (occupant) {
                                occupant.save(attributes);
                            } else {
                                this.model.create(attributes);
                            }
                    }
                },

                promptForInvite: function (suggestion) {
                    var reason = prompt(
                        __(___('You are about to invite %1$s to the chat room "%2$s". '), suggestion.text.label, this.model.get('id')) +
                        __("You may optionally include a message, explaining the reason for the invitation.")
                    );
                    if (reason !== null) {
                        this.chatroomview.directInvite(suggestion.text.value, reason);
                    }
                    suggestion.target.value = '';
                },

                inviteFormSubmitted: function (evt) {
                    evt.preventDefault();
                    var el = evt.target.querySelector('input.invited-contact');
                    this.promptForInvite({
                        'target': el,
                        'text': {
                            'label': el.value,
                            'value': el.value
                        }});
                },

                shouldInviteWidgetBeShown: function () {
                    return _converse.allow_muc_invitations &&
                        (this.chatroomview.model.get('open') ||
                            this.chatroomview.model.get('affiliation') === "owner"
                        );
                },

                initInviteWidget: function () {
                    var form = this.el.querySelector('form.room-invite');
                    if (_.isNull(form)) {
                        return;
                    }
                    form.addEventListener('submit', this.inviteFormSubmitted.bind(this));
                    var el = this.el.querySelector('input.invited-contact');
                    var list = _converse.roster.map(function (item) {
                            var label = item.get('fullname') || item.get('jid');
                            return {'label': label, 'value':item.get('jid')};
                        });
                    var awesomplete = new Awesomplete(el, {
                        'minChars': 1,
                        'list': list
                    });
                    el.addEventListener('awesomplete-selectcomplete', this.promptForInvite.bind(this));
                }
            });

            _converse.RoomsPanel = Backbone.View.extend({
                /* Backbone View which renders the "Rooms" tab and accompanying
                 * panel in the control box.
                 *
                 * In this panel, chat rooms can be listed, joined and new rooms
                 * can be created.
                 */
                tagName: 'div',
                className: 'controlbox-pane',
                id: 'chatrooms',
                events: {
                    'submit form.add-chatroom': 'createChatRoom',
                    'click input#show-rooms': 'showRooms',
                    'click a.open-room': 'createChatRoom',
                    'click a.room-info': 'toggleRoomInfo',
                    'change input[name=server]': 'setDomain',
                    'change input[name=nick]': 'setNick'
                },

                initialize: function (cfg) {
                    this.$parent = cfg.$parent;
                    this.model.on('change:muc_domain', this.onDomainChange, this);
                    this.model.on('change:nick', this.onNickChange, this);
                },

                render: function () {
                    this.$parent.append(
                        this.$el.html(
                            tpl_room_panel({
                                'server_input_type': _converse.hide_muc_server && 'hidden' || 'text',
                                'server_label_global_attr': _converse.hide_muc_server && ' hidden' || '',
                                'label_room_name': __('Room name'),
                                'label_nickname': __('Nickname'),
                                'label_server': __('Server'),
                                'label_join': __('Join Room'),
                                'label_show_rooms': __('Show rooms')
                            })
                        ));
                    this.$tabs = this.$parent.parent().find('#controlbox-tabs');

                    var controlbox = _converse.chatboxes.get('controlbox');
                    this.$tabs.append(tpl_chatrooms_tab({
                        'label_rooms': __('Rooms'),
                        'is_current': controlbox.get('active-panel') === ROOMS_PANEL_ID
                    }));
                    if (controlbox.get('active-panel') !== ROOMS_PANEL_ID) {
                        this.$el.addClass('hidden');
                    }
                    return this;
                },

                onDomainChange: function (model) {
                    var $server = this.$el.find('input.new-chatroom-server');
                    $server.val(model.get('muc_domain'));
                    if (_converse.auto_list_rooms) {
                        this.updateRoomsList();
                    }
                },

                onNickChange: function (model) {
                    var $nick = this.$el.find('input.new-chatroom-nick');
                    $nick.val(model.get('nick'));
                },

                informNoRoomsFound: function () {
                    var $available_chatrooms = this.$el.find('#available-chatrooms');
                    // For translators: %1$s is a variable and will be replaced with the XMPP server name
                    $available_chatrooms.html('<dt>'+__('No rooms on %1$s',this.model.get('muc_domain'))+'</dt>');
                    $('input#show-rooms').show().siblings('span.spinner').remove();
                },

                onRoomsFound: function (iq) {
                    /* Handle the IQ stanza returned from the server, containing
                     * all its public rooms.
                     */
                    var name, jid, i, fragment,
                        $available_chatrooms = this.$el.find('#available-chatrooms');
                    this.rooms = $(iq).find('query').find('item');
                    if (this.rooms.length) {
                        // For translators: %1$s is a variable and will be
                        // replaced with the XMPP server name
                        $available_chatrooms.html('<dt>'+__('Rooms on %1$s',this.model.get('muc_domain'))+'</dt>');
                        fragment = document.createDocumentFragment();
                        for (i=0; i<this.rooms.length; i++) {
                            name = Strophe.unescapeNode($(this.rooms[i]).attr('name')||$(this.rooms[i]).attr('jid'));
                            jid = $(this.rooms[i]).attr('jid');
                            fragment.appendChild($(
                                tpl_room_item({
                                    'name':name,
                                    'jid':jid,
                                    'open_title': __('Click to open this room'),
                                    'info_title': __('Show more information on this room')
                                    })
                                )[0]);
                        }
                        $available_chatrooms.append(fragment);
                        $('input#show-rooms').show().siblings('span.spinner').remove();
                    } else {
                        this.informNoRoomsFound();
                    }
                    return true;
                },

                updateRoomsList: function () {
                    /* Send and IQ stanza to the server asking for all rooms
                     */
                    _converse.connection.sendIQ(
                        $iq({
                            to: this.model.get('muc_domain'),
                            from: _converse.connection.jid,
                            type: "get"
                        }).c("query", {xmlns: Strophe.NS.DISCO_ITEMS}),
                        this.onRoomsFound.bind(this),
                        this.informNoRoomsFound.bind(this)
                    );
                },

                showRooms: function () {
                    var $available_chatrooms = this.$el.find('#available-chatrooms');
                    var $server = this.$el.find('input.new-chatroom-server');
                    var server = $server.val();
                    if (!server) {
                        $server.addClass('error');
                        return;
                    }
                    this.$el.find('input.new-chatroom-name').removeClass('error');
                    $server.removeClass('error');
                    $available_chatrooms.empty();
                    $('input#show-rooms').hide().after('<span class="spinner"/>');
                    this.model.save({muc_domain: server});
                    this.updateRoomsList();
                },

                insertRoomInfo: function (el, stanza) {
                    /* Insert room info (based on returned #disco IQ stanza)
                     *
                     * Parameters:
                     *  (HTMLElement) el: The HTML DOM element that should
                     *      contain the info.
                     *  (XMLElement) stanza: The IQ stanza containing the room
                     *      info.
                     */
                    var $stanza = $(stanza);
                    // All MUC features found here: http://xmpp.org/registrar/disco-features.html
                    $(el).find('span.spinner').replaceWith(
                        tpl_room_description({
                            'server': Strophe.getDomainFromJid(stanza.getAttribute('from')),
                            'desc': $stanza.find('field[var="muc#roominfo_description"] value').text(),
                            'occ': $stanza.find('field[var="muc#roominfo_occupants"] value').text(),
                            'hidden': $stanza.find('feature[var="muc_hidden"]').length,
                            'membersonly': $stanza.find('feature[var="muc_membersonly"]').length,
                            'moderated': $stanza.find('feature[var="muc_moderated"]').length,
                            'nonanonymous': $stanza.find('feature[var="muc_nonanonymous"]').length,
                            'open': $stanza.find('feature[var="muc_open"]').length,
                            'passwordprotected': $stanza.find('feature[var="muc_passwordprotected"]').length,
                            'persistent': $stanza.find('feature[var="muc_persistent"]').length,
                            'publicroom': $stanza.find('feature[var="muc_public"]').length,
                            'semianonymous': $stanza.find('feature[var="muc_semianonymous"]').length,
                            'temporary': $stanza.find('feature[var="muc_temporary"]').length,
                            'unmoderated': $stanza.find('feature[var="muc_unmoderated"]').length,
                            'label_desc': __('Description:'),
                            'label_server': __('Server:'),
                            'label_occ': __('Occupants:'),
                            'label_features': __('Features:'),
                            'label_requires_auth': __('Requires authentication'),
                            'label_hidden': __('Hidden'),
                            'label_requires_invite': __('Requires an invitation'),
                            'label_moderated': __('Moderated'),
                            'label_non_anon': __('Non-anonymous'),
                            'label_open_room': __('Open room'),
                            'label_permanent_room': __('Permanent room'),
                            'label_public': __('Public'),
                            'label_semi_anon':  __('Semi-anonymous'),
                            'label_temp_room':  __('Temporary room'),
                            'label_unmoderated': __('Unmoderated')
                        })
                    );
                },

                toggleRoomInfo: function (ev) {
                    /* Show/hide extra information about a room in the listing.
                     */
                    var target = ev.target,
                        $parent = $(target).parent('dd'),
                        $div = $parent.find('div.room-info');
                    if ($div.length) {
                        $div.remove();
                    } else {
                        $parent.find('span.spinner').remove();
                        $parent.append('<span class="spinner hor_centered"/>');
                        _converse.connection.disco.info(
                            $(target).attr('data-room-jid'), null, _.partial(this.insertRoomInfo, $parent[0])
                        );
                    }
                },

                createChatRoom: function (ev) {
                    ev.preventDefault();
                    var name, $name, server, $server, jid;
                    if (ev.type === 'click') {
                        name = $(ev.target).text();
                        jid = $(ev.target).attr('data-room-jid');
                    } else {
                        $name = this.$el.find('input.new-chatroom-name');
                        $server= this.$el.find('input.new-chatroom-server');
                        server = $server.val();
                        name = $name.val().trim();
                        $name.val(''); // Clear the input
                        if (name && server) {
                            jid = Strophe.escapeNode(name.toLowerCase()) + '@' + server.toLowerCase();
                            $name.removeClass('error');
                            $server.removeClass('error');
                            this.model.save({muc_domain: server});
                        } else {
                            if (!name) { $name.addClass('error'); }
                            if (!server) { $server.addClass('error'); }
                            return;
                        }
                    }
                    _converse.createChatRoom({
                        'id': jid,
                        'jid': jid,
                        'name': name || Strophe.unescapeNode(Strophe.getNodeFromJid(jid)),
                        'type': 'chatroom',
                        'box_id': b64_sha1(jid)
                    });
                },

                setDomain: function (ev) {
                    this.model.save({muc_domain: ev.target.value});
                },

                setNick: function (ev) {
                    this.model.save({nick: ev.target.value});
                }
            });
            /************************ End of ChatRoomView **********************/


            _converse.onDirectMUCInvitation = function (message) {
                /* A direct MUC invitation to join a room has been received
                 * See XEP-0249: Direct MUC invitations.
                 *
                 * Parameters:
                 *  (XMLElement) message: The message stanza containing the
                 *        invitation.
                 */
                var $message = $(message),
                    $x = $message.children('x[xmlns="jabber:x:conference"]'),
                    from = Strophe.getBareJidFromJid($message.attr('from')),
                    room_jid = $x.attr('jid'),
                    reason = $x.attr('reason'),
                    contact = _converse.roster.get(from),
                    result;

                if (_converse.auto_join_on_invite) {
                    result = true;
                } else {
                    // Invite request might come from someone not your roster list
                    contact = contact? contact.get('fullname'): Strophe.getNodeFromJid(from);
                    if (!reason) {
                        result = confirm(
                            __(___("%1$s has invited you to join a chat room: %2$s"),
                                contact, room_jid)
                        );
                    } else {
                        result = confirm(
                            __(___('%1$s has invited you to join a chat room: %2$s, and left the following reason: "%3$s"'),
                                contact, room_jid, reason)
                        );
                    }
                }
                if (result === true) {
                    var chatroom = _converse.createChatRoom({
                        'id': room_jid,
                        'jid': room_jid,
                        'name': Strophe.unescapeNode(Strophe.getNodeFromJid(room_jid)),
                        'nick': Strophe.unescapeNode(Strophe.getNodeFromJid(_converse.connection.jid)),
                        'type': 'chatroom',
                        'box_id': b64_sha1(room_jid),
                        'password': $x.attr('password')
                    });
                    if (chatroom.get('connection_status') === ROOMSTATUS.DISCONNECTED) {
                        _converse.chatboxviews.get(room_jid).join();
                    }
                }
            };

            if (_converse.allow_muc_invitations) {
                var registerDirectInvitationHandler = function () {
                    _converse.connection.addHandler(
                        function (message) {
                            _converse.onDirectMUCInvitation(message);
                            return true;
                        }, 'jabber:x:conference', 'message');
                };
                _converse.on('connected', registerDirectInvitationHandler);
                _converse.on('reconnected', registerDirectInvitationHandler);
            }

            var autoJoinRooms = function () {
                /* Automatically join chat rooms, based on the
                 * "auto_join_rooms" configuration setting, which is an array
                 * of strings (room JIDs) or objects (with room JID and other
                 * settings).
                 */
                _.each(_converse.auto_join_rooms, function (room) {
                    if (_.isString(room)) {
                        _converse.api.rooms.open(room);
                    } else if (_.isObject(room)) {
                        _converse.api.rooms.open(room.jid, room.nick);
                    } else {
                        _converse.log('Invalid room criteria specified for "auto_join_rooms"', 'error');
                    }
                });
            };
            _converse.on('chatBoxesFetched', autoJoinRooms);

            _converse.getChatRoom = function (jid, attrs, fetcher) {
                jid = jid.toLowerCase();
                return _converse.getViewForChatBox(fetcher(_.extend({
                    'id': jid,
                    'jid': jid,
                    'name': Strophe.unescapeNode(Strophe.getNodeFromJid(jid)),
                    'type': 'chatroom',
                    'box_id': b64_sha1(jid)
                }, attrs)));
            };

            /* We extend the default converse.js API to add methods specific to MUC
             * chat rooms.
             */
            _.extend(_converse.api, {
                'rooms': {
                    'close': function (jids) {
                        if (_.isUndefined(jids)) {
                            _converse.chatboxviews.each(function (view) {
                                if (view.is_chatroom && view.model) {
                                    view.close();
                                }
                            });
                        } else if (_.isString(jids)) {
                            var view = _converse.chatboxviews.get(jids);
                            if (view) { view.close(); }
                        } else {
                            _.each(jids, function (jid) {
                                var view = _converse.chatboxviews.get(jid);
                                if (view) { view.close(); }
                            });
                        }
                    },
                    'open': function (jids, attrs) {
                        if (_.isString(attrs)) {
                            attrs = {'nick': attrs};
                        } else if (_.isUndefined(attrs)) {
                            attrs = {};
                        }
                        if (_.isUndefined(attrs.maximize)) {
                            attrs.maximize = false;
                        }
                        if (!attrs.nick && _converse.muc_nickname_from_jid) {
                            attrs.nick = Strophe.getNodeFromJid(_converse.bare_jid);
                        }
                        if (_.isUndefined(jids)) {
                            throw new TypeError('rooms.open: You need to provide at least one JID');
                        } else if (_.isString(jids)) {
                            return _converse.getChatRoom(jids, attrs, _converse.createChatRoom);
                        }
                        return _.map(jids, _.partial(_converse.getChatRoom, _, attrs, _converse.createChatRoom));
                    },
                    'get': function (jids, attrs, create) {
                        if (_.isString(attrs)) {
                            attrs = {'nick': attrs};
                        } else if (_.isUndefined(attrs)) {
                            attrs = {};
                        }
                        if (_.isUndefined(jids)) {
                            var result = [];
                            _converse.chatboxes.each(function (chatbox) {
                                if (chatbox.get('type') === 'chatroom') {
                                    result.push(_converse.getViewForChatBox(chatbox));
                                }
                            });
                            return result;
                        }
                        var fetcher = _.partial(_converse.chatboxviews.getChatBox.bind(_converse.chatboxviews), _, create);
                        if (!attrs.nick) {
                            attrs.nick = Strophe.getNodeFromJid(_converse.bare_jid);
                        }
                        if (_.isString(jids)) {
                            return _converse.getChatRoom(jids, attrs, fetcher);
                        }
                        return _.map(jids, _.partial(_converse.getChatRoom, _, attrs, fetcher));
                    }
                }
            });

            var reconnectToChatRooms = function () {
                /* Upon a reconnection event from converse, join again
                 * all the open chat rooms.
                 */
                _converse.chatboxviews.each(function (view) {
                    if (view.model.get('type') === 'chatroom') {
                        view.model.save('connection_status', ROOMSTATUS.DISCONNECTED);
                        view.join();
                    }
                });
            };
            _converse.on('reconnected', reconnectToChatRooms);

            var disconnectChatRooms = function () {
                /* When disconnecting, or reconnecting, mark all chat rooms as
                 * disconnected, so that they will be properly entered again
                 * when fetched from session storage.
                 */
                _converse.chatboxes.each(function (model) {
                    if (model.get('type') === 'chatroom') {
                        model.save('connection_status', ROOMSTATUS.DISCONNECTED);
                    }
                });
            };
            _converse.on('reconnecting', disconnectChatRooms);
            _converse.on('disconnecting', disconnectChatRooms);
        }
    });
}));


define('tpl!chatroom_bookmark_form', ['lodash'], function(_) {return function(obj) {
obj || (obj = {});
var __t, __p = '', __e = _.escape;
with (obj) {
__p += '<div class="chatroom-form-container">\n    <form class="pure-form converse-form chatroom-form">\n        <fieldset>\n            <legend>' +
__e(heading) +
'</legend>\n            <label>' +
__e(label_name) +
'</label>\n            <input type="text" name="name" required="required"/>\n            <label>' +
__e(label_autojoin) +
'</label>\n            <input type="checkbox" name="autojoin"/>\n            <label>' +
__e(label_nick) +
'</label>\n            <input type="text" name="nick" value="' +
__e(default_nick) +
'"/>\n        </fieldset>\n        <fieldset>\n            <input class="pure-button button-primary" type="submit" value="' +
__e(label_submit) +
'"/>\n            <input class="pure-button button-cancel" type="button" value="' +
__e(label_cancel) +
'"/>\n        </fieldset>\n    </form>\n</div>\n';

}
return __p
};});


define('tpl!chatroom_bookmark_toggle', ['lodash'], function(_) {return function(obj) {
obj || (obj = {});
var __t, __p = '', __e = _.escape, __j = Array.prototype.join;
function print() { __p += __j.call(arguments, '') }
with (obj) {
__p += '<a class="chatbox-btn toggle-bookmark icon-pushpin\n   ';
 if (bookmarked) {;
__p += '\n    button-on\n   ';
 } ;
__p += '" title="' +
__e(info_toggle_bookmark) +
'"></a>\n';

}
return __p
};});


define('tpl!bookmark', ['lodash'], function(_) {return function(obj) {
obj || (obj = {});
var __t, __p = '', __e = _.escape;
with (obj) {
__p += '<dd class="available-chatroom">\n    <a class="open-room" data-room-jid="' +
__e(jid) +
'" title="' +
__e(open_title) +
'" href="#">' +
__e(name) +
'</a>\n    <a class="remove-bookmark icon-close" data-room-jid="' +
__e(jid) +
'" data-bookmark-name="' +
__e(name) +
'"\n       title="' +
__e(info_remove) +
'" href="#">&nbsp;</a>\n    <a class="room-info icon-room-info" data-room-jid="' +
__e(jid) +
'"\n       title="' +
__e(info_title) +
'" href="#">&nbsp;</a>\n</dd>\n';

}
return __p
};});


define('tpl!bookmarks_list', ['lodash'], function(_) {return function(obj) {
obj || (obj = {});
var __t, __p = '', __e = _.escape;
with (obj) {
__p += '<a href="#" class="bookmarks-toggle icon-' +
__e(toggle_state) +
'" title="' +
__e(desc_bookmarks) +
'">' +
__e(label_bookmarks) +
'</a>\n<dl class="bookmarks rooms-list"></dl>\n';

}
return __p
};});

// Converse.js (A browser based XMPP chat client)
// http://conversejs.org
//
// Copyright (c) 2012-2017, Jan-Carel Brand <jc@opkode.com>
// Licensed under the Mozilla Public License (MPLv2)
//
/*global define */

/* This is a Converse.js plugin which add support for bookmarks specified
 * in XEP-0048.
 */
(function (root, factory) {
    define('converse-bookmarks',[ "utils",
            "converse-core",
            "converse-muc",
            "tpl!chatroom_bookmark_form",
            "tpl!chatroom_bookmark_toggle",
            "tpl!bookmark",
            "tpl!bookmarks_list"
        ],
        factory);
}(this, function (
        utils,
        converse,
        muc,
        tpl_chatroom_bookmark_form,
        tpl_chatroom_bookmark_toggle,
        tpl_bookmark,
        tpl_bookmarks_list
    ) {

    var $ = converse.env.jQuery,
        Backbone = converse.env.Backbone,
        Strophe = converse.env.Strophe,
        $iq = converse.env.$iq,
        b64_sha1 = converse.env.b64_sha1,
        _ = converse.env._;

    converse.plugins.add('converse-bookmarks', {
        overrides: {
            // Overrides mentioned here will be picked up by converse.js's
            // plugin architecture they will replace existing methods on the
            // relevant objects or classes.
            //
            // New functions which don't exist yet can also be added.

            clearSession: function () {
                this.__super__.clearSession.apply(this, arguments);
                if (!_.isUndefined(this.bookmarks)) {
                    this.bookmarks.browserStorage._clear();
                }
            },

            ChatRoomView: {
                events: {
                    'click .toggle-bookmark': 'toggleBookmark'
                },

                initialize: function () {
                    this.__super__.initialize.apply(this, arguments);
                    this.model.on('change:bookmarked', this.onBookmarked, this);
                    this.setBookmarkState();
                },

                generateHeadingHTML: function () {
                    var _converse = this.__super__._converse,
                        __ = _converse.__,
                        html = this.__super__.generateHeadingHTML.apply(this, arguments);
                    if (_converse.allow_bookmarks) {
                        var div = document.createElement('div');
                        div.innerHTML = html;
                        var bookmark_button = tpl_chatroom_bookmark_toggle(
                            _.assignIn(
                                this.model.toJSON(),
                                {
                                    info_toggle_bookmark: __('Bookmark this room'),
                                    bookmarked: this.model.get('bookmarked')
                                }
                            ));
                        var close_button = div.querySelector('.close-chatbox-button');
                        close_button.insertAdjacentHTML('afterend', bookmark_button);
                        return div.innerHTML;
                    }
                    return html;
                },

                checkForReservedNick: function () {
                    /* Check if the user has a bookmark with a saved nickanme
                     * for this room, and if so use it.
                     * Otherwise delegate to the super method.
                     */
                    var _converse = this.__super__._converse;
                    if (_.isUndefined(_converse.bookmarks) || !_converse.allow_bookmarks) {
                        return this.__super__.checkForReservedNick.apply(this, arguments);
                    }
                    var model = _converse.bookmarks.findWhere({'jid': this.model.get('jid')});
                    if (!_.isUndefined(model) && model.get('nick')) {
                        this.join(model.get('nick'));
                    } else {
                        return this.__super__.checkForReservedNick.apply(this, arguments);
                    }
                },

                onBookmarked: function () {
                    if (this.model.get('bookmarked')) {
                        this.$('.icon-pushpin').addClass('button-on');
                    } else {
                        this.$('.icon-pushpin').removeClass('button-on');
                    }
                },

                setBookmarkState: function () {
                    /* Set whether the room is bookmarked or not.
                     */
                    var _converse = this.__super__._converse;
                    if (!_.isUndefined(_converse.bookmarks)) {
                        var models = _converse.bookmarks.where({'jid': this.model.get('jid')});
                        if (!models.length) {
                            this.model.save('bookmarked', false);
                        } else {
                            this.model.save('bookmarked', true);
                        }
                    }
                },

                renderBookmarkForm: function () {
                    var _converse = this.__super__._converse,
                        __ = _converse.__,
                        $body = this.$('.chatroom-body');
                    $body.children().addClass('hidden');
                    // Remove any existing forms
                    $body.find('form.chatroom-form').remove();
                    $body.append(
                        tpl_chatroom_bookmark_form({
                            heading: __('Bookmark this room'),
                            label_name: __('The name for this bookmark:'),
                            label_autojoin: __('Would you like this room to be automatically joined upon startup?'),
                            label_nick: __('What should your nickname for this room be?'),
                            default_nick: this.model.get('nick'),
                            label_submit: __('Save'),
                            label_cancel: __('Cancel')
                        }));
                    this.$('.chatroom-form').submit(this.onBookmarkFormSubmitted.bind(this));
                    this.$('.chatroom-form .button-cancel').on('click', this.cancelConfiguration.bind(this));
                },

                onBookmarkFormSubmitted: function (ev) {
                    ev.preventDefault();
                    var _converse = this.__super__._converse;
                    var $form = $(ev.target), that = this;
                    _converse.bookmarks.createBookmark({
                        'jid': this.model.get('jid'),
                        'autojoin': $form.find('input[name="autojoin"]').prop('checked'),
                        'name':  $form.find('input[name=name]').val(),
                        'nick':  $form.find('input[name=nick]').val()
                    });
                    this.$el.find('div.chatroom-form-container').hide(
                        function () {
                            $(this).remove();
                            that.renderAfterTransition();
                        });
                },

                toggleBookmark: function (ev) {
                    if (ev) {
                        ev.preventDefault();
                        ev.stopPropagation();
                    }
                    var _converse = this.__super__._converse;
                    var models = _converse.bookmarks.where({'jid': this.model.get('jid')});
                    if (!models.length) {
                        this.renderBookmarkForm();
                    } else {
                        _.forEach(models, function (model) {
                            model.destroy();
                        });
                        this.$('.icon-pushpin').removeClass('button-on');
                    }
                }
            }
        },

        initialize: function () {
            /* The initialize function gets called as soon as the plugin is
             * loaded by converse.js's plugin machinery.
             */
            var _converse = this._converse,
                __ = _converse.__,
                ___ = _converse.___;

            // Configuration values for this plugin
            // ====================================
            // Refer to docs/source/configuration.rst for explanations of these
            // configuration settings.
            this.updateSettings({
                allow_bookmarks: true
            });

            _converse.Bookmark = Backbone.Model;

            _converse.BookmarksList = Backbone.Model.extend({
                defaults: {
                    "toggle-state":  _converse.OPENED
                }
            });

            _converse.Bookmarks = Backbone.Collection.extend({
                model: _converse.Bookmark,

                initialize: function () {
                    this.on('add', _.flow(this.openBookmarkedRoom, this.markRoomAsBookmarked));
                    this.on('remove', this.markRoomAsUnbookmarked, this);
                    this.on('remove', this.sendBookmarkStanza, this);

                    var cache_key = 'converse.room-bookmarks'+_converse.bare_jid;
                    this.cached_flag = b64_sha1(cache_key+'fetched');
                    this.browserStorage = new Backbone.BrowserStorage[_converse.storage](
                        b64_sha1(cache_key)
                    );
                },

                openBookmarkedRoom: function (bookmark) {
                    if (bookmark.get('autojoin')) {
                        _converse.api.rooms.open(bookmark.get('jid'), bookmark.get('nick'));
                    }
                    return bookmark;
                },

                fetchBookmarks: function () {
                    var deferred = new $.Deferred();
                    var promise = deferred.promise();
                    if (window.sessionStorage.getItem(this.browserStorage.name)) {
                        this.fetch({
                            'success': _.bind(this.onCachedBookmarksFetched, this, deferred),
                            'error':  _.bind(this.onCachedBookmarksFetched, this, deferred)
                        });
                    } else if (! window.sessionStorage.getItem(this.cached_flag)) {
                        // There aren't any cached bookmarks, and the cache is
                        // not set to null. So we query the XMPP server.
                        // If nothing is returned from the XMPP server, we set
                        // the cache to null to avoid calling the server again.
                        this.fetchBookmarksFromServer(deferred);
                    } else {
                        deferred.resolve();
                    }
                    return promise;
                },

                onCachedBookmarksFetched: function (deferred) {
                    return deferred.resolve();
                },

                createBookmark: function (options) {
                    _converse.bookmarks.create(options);
                    _converse.bookmarks.sendBookmarkStanza();
                },

                sendBookmarkStanza: function () {
                    var stanza = $iq({
                            'type': 'set',
                            'from': _converse.connection.jid,
                        })
                        .c('pubsub', {'xmlns': Strophe.NS.PUBSUB})
                            .c('publish', {'node': 'storage:bookmarks'})
                                .c('item', {'id': 'current'})
                                    .c('storage', {'xmlns':'storage:bookmarks'});
                    this.each(function (model) {
                        stanza = stanza.c('conference', {
                            'name': model.get('name'),
                            'autojoin': model.get('autojoin'),
                            'jid': model.get('jid'),
                        }).c('nick').t(model.get('nick')).up().up();
                    });
                    stanza.up().up().up();
                    stanza.c('publish-options')
                        .c('x', {'xmlns': Strophe.NS.XFORM, 'type':'submit'})
                            .c('field', {'var':'FORM_TYPE', 'type':'hidden'})
                                .c('value').t('http://jabber.org/protocol/pubsub#publish-options').up().up()
                            .c('field', {'var':'pubsub#persist_items'})
                                .c('value').t('true').up().up()
                            .c('field', {'var':'pubsub#access_model'})
                                .c('value').t('whitelist');
                    _converse.connection.sendIQ(stanza, null, this.onBookmarkError.bind(this));
                },

                onBookmarkError: function (iq) {
                    _converse.log("Error while trying to add bookmark", "error");
                    _converse.log(iq);
                    // We remove all locally cached bookmarks and fetch them
                    // again from the server.
                    this.reset();
                    this.fetchBookmarksFromServer(null);
                    window.alert(__("Sorry, something went wrong while trying to save your bookmark."));
                },

                fetchBookmarksFromServer: function (deferred) {
                    var stanza = $iq({
                        'from': _converse.connection.jid,
                        'type': 'get',
                    }).c('pubsub', {'xmlns': Strophe.NS.PUBSUB})
                        .c('items', {'node': 'storage:bookmarks'});
                    _converse.connection.sendIQ(
                        stanza,
                        _.bind(this.onBookmarksReceived, this, deferred),
                        _.bind(this.onBookmarksReceivedError, this, deferred)
                    );
                },

                markRoomAsBookmarked: function (bookmark) {
                    var room = _converse.chatboxes.get(bookmark.get('jid'));
                    if (!_.isUndefined(room)) {
                        room.save('bookmarked', true);
                    }
                },

                markRoomAsUnbookmarked: function (bookmark) {
                    var room = _converse.chatboxes.get(bookmark.get('jid'));
                    if (!_.isUndefined(room)) {
                        room.save('bookmarked', false);
                    }
                },

                onBookmarksReceived: function (deferred, iq) {
                    var bookmarks = $(iq).find(
                        'items[node="storage:bookmarks"] item[id="current"] storage conference'
                    );
                    var that = this;
                    _.forEach(bookmarks, function (bookmark) {
                        that.create({
                            'jid': bookmark.getAttribute('jid'),
                            'name': bookmark.getAttribute('name'),
                            'autojoin': bookmark.getAttribute('autojoin') === 'true',
                            'nick': bookmark.querySelector('nick').textContent
                        });
                    });
                    if (!_.isUndefined(deferred)) {
                        return deferred.resolve();
                    }
                },

                onBookmarksReceivedError: function (deferred, iq) {
                    window.sessionStorage.setItem(this.cached_flag, true);
                    _converse.log('Error while fetching bookmarks');
                    _converse.log(iq);
                    if (!_.isUndefined(deferred)) {
                        return deferred.reject();
                    }
                }
            });

            _converse.BookmarksView = Backbone.View.extend({
                tagName: 'div',
                className: 'bookmarks-list',
                events: {
                    'click .remove-bookmark': 'removeBookmark',
                    'click .bookmarks-toggle': 'toggleBookmarksList'
                },

                initialize: function () {
                    this.model.on('add', this.renderBookmarkListElement, this);
                    this.model.on('remove', this.removeBookmarkListElement, this);

                    var cachekey = 'converse.room-bookmarks'+_converse.bare_jid+'-list-model';
                    this.list_model = new _converse.BookmarksList();
                    this.list_model.id = cachekey;
                    this.list_model.browserStorage = new Backbone.BrowserStorage[_converse.storage](
                        b64_sha1(cachekey)
                    );
                    this.list_model.fetch();
                    this.render();
                },

                render: function () {
                    this.$el.html(tpl_bookmarks_list({
                        'toggle_state': this.list_model.get('toggle-state'),
                        'desc_bookmarks': __('Click to toggle the bookmarks list'),
                        'label_bookmarks': __('Bookmarked Rooms')
                    })).hide();
                    if (this.list_model.get('toggle-state') !== _converse.OPENED) {
                        this.$('.bookmarks').hide();
                    }
                    this.model.each(this.renderBookmarkListElement.bind(this));
                    var controlboxview = _converse.chatboxviews.get('controlbox');
                    if (!_.isUndefined(controlboxview)) {
                        this.$el.prependTo(controlboxview.$('#chatrooms'));
                    }
                    return this.$el;
                },

                removeBookmark: function (ev) {
                    ev.preventDefault();
                    var name = $(ev.target).data('bookmarkName');
                    var jid = $(ev.target).data('roomJid');
                    if (confirm(__(___("Are you sure you want to remove the bookmark \"%1$s\"?"), name))) {
                        _.invokeMap(_converse.bookmarks.where({'jid': jid}), Backbone.Model.prototype.destroy);
                    }
                },

                renderBookmarkListElement: function (item) {
                    var $bookmark = $(tpl_bookmark({
                            'name': item.get('name'),
                            'jid': item.get('jid'),
                            'open_title': __('Click to open this room'),
                            'info_title': __('Show more information on this room'),
                            'info_remove': __('Remove this bookmark')
                        }));
                    this.$('.bookmarks').append($bookmark);
                    if (!this.$el.is(':visible')) {
                        this.$el.show();
                    }
                },

                removeBookmarkListElement: function (item) {
                    this.$('[data-room-jid="'+item.get('jid')+'"]:first').parent().remove();
                    if (this.model.length === 0) {
                        this.$el.hide();
                    }
                },

                toggleBookmarksList: function (ev) {
                    if (ev && ev.preventDefault) { ev.preventDefault(); }
                    var $el = $(ev.target);
                    if ($el.hasClass("icon-opened")) {
                        this.$('.bookmarks').slideUp('fast');
                        this.list_model.save({'toggle-state': _converse.CLOSED});
                        $el.removeClass("icon-opened").addClass("icon-closed");
                    } else {
                        $el.removeClass("icon-closed").addClass("icon-opened");
                        this.$('.bookmarks').slideDown('fast');
                        this.list_model.save({'toggle-state': _converse.OPENED});
                    }
                }
            });

            var initBookmarks = function () {
                if (!_converse.allow_bookmarks) {
                    return;
                }
                _converse.bookmarks = new _converse.Bookmarks();
                _converse.bookmarks.fetchBookmarks().always(function () {
                    _converse.bookmarksview = new _converse.BookmarksView(
                        {'model': _converse.bookmarks}
                    );
                });
            };
            _converse.on('chatBoxesFetched', initBookmarks);

            var afterReconnection = function () {
                if (!_converse.allow_bookmarks) {
                    return;
                }
                if (_.isUndefined(_converse.bookmarksview)) {
                    initBookmarks();
                } else {
                    _converse.bookmarksview.render();
                }
            };
            _converse.on('reconnected', afterReconnection);
        }
    });
}));

// http://xmpp.org/extensions/xep-0059.html

(function (root, factory) {
    if (typeof define === 'function' && define.amd) {
        // AMD. Register as an anonymous module.
        define("strophe.rsm", [
            "strophe"
        ], function (Strophe) {
            factory(
                Strophe.Strophe,
                Strophe.$build,
                Strophe.$iq ,
                Strophe.$msg,
                Strophe.$pres
            );
            return Strophe;
        });
    } else {
        // Browser globals
        factory(
            root.Strophe,
            root.$build,
            root.$iq ,
            root.$msg,
            root.$pres
        );
    }
}(this, function (Strophe, $build, $iq, $msg, $pres) {

Strophe.addNamespace('RSM', 'http://jabber.org/protocol/rsm');
   
Strophe.RSM = function(options) {
  this.attribs = ['max', 'first', 'last', 'after', 'before', 'index', 'count'];

  if (typeof options.xml != 'undefined') {
    this.fromXMLElement(options.xml);
  } else {
    for (var ii = 0; ii < this.attribs.length; ii++) {
      var attrib = this.attribs[ii];
      this[attrib] = options[attrib];
    }
  }
};

Strophe.RSM.prototype = {
  toXML: function() {
    var xml = $build('set', {xmlns: Strophe.NS.RSM});
    for (var ii = 0; ii < this.attribs.length; ii++) {
      var attrib = this.attribs[ii];
      if (typeof this[attrib] != 'undefined') {
        xml = xml.c(attrib).t(this[attrib].toString()).up();
      }
    }
    return xml.tree();
  },

  next: function(max) {
    var newSet = new Strophe.RSM({max: max, after: this.last});
    return newSet;
  },

  previous: function(max) {
    var newSet = new Strophe.RSM({max: max, before: this.first});
    return newSet;
  },

  fromXMLElement: function(xmlElement) {
    for (var ii = 0; ii < this.attribs.length; ii++) {
      var attrib = this.attribs[ii];
      var elem = xmlElement.getElementsByTagName(attrib)[0];
      if (typeof elem != 'undefined' && elem !== null) {
        this[attrib] = Strophe.getText(elem);
        if (attrib == 'first') {
          this.index = elem.getAttribute('index');
        }
      }
    }
  }
};
}));

// Converse.js (A browser based XMPP chat client)
// http://conversejs.org
//
// Copyright (c) 2012-2017, Jan-Carel Brand <jc@opkode.com>
// Licensed under the Mozilla Public License (MPLv2)
//
/*global define */

// XEP-0059 Result Set Management

(function (root, factory) {
    define('converse-mam',[
            "converse-core",
            "converse-chatview", // Could be made a soft dependency
            "converse-muc", // Could be made a soft dependency
            "strophe.rsm"
    ], factory);
}(this, function (converse) {
    "use strict";
    var $ = converse.env.jQuery,
        Strophe = converse.env.Strophe,
        $iq = converse.env.$iq,
        _ = converse.env._,
        moment = converse.env.moment;

    var RSM_ATTRIBUTES = ['max', 'first', 'last', 'after', 'before', 'index', 'count'];
    // XEP-0313 Message Archive Management
    var MAM_ATTRIBUTES = ['with', 'start', 'end'];

    Strophe.addNamespace('MAM', 'urn:xmpp:mam:0');
    Strophe.addNamespace('RSM', 'http://jabber.org/protocol/rsm');

    converse.plugins.add('converse-mam', {

        overrides: {
            // Overrides mentioned here will be picked up by converse.js's
            // plugin architecture they will replace existing methods on the
            // relevant objects or classes.
            //
            // New functions which don't exist yet can also be added.

            Features: {
                addClientFeatures: function () {
                    var _converse = this.__super__._converse;
                    _converse.connection.disco.addFeature(Strophe.NS.MAM);
                    return this.__super__.addClientFeatures.apply(this, arguments);
                }
            },

            ChatBox: {
                getMessageAttributes: function ($message, $delay, original_stanza) {
                    var attrs = this.__super__.getMessageAttributes.apply(this, arguments);
                    attrs.archive_id = $(original_stanza).find('result[xmlns="'+Strophe.NS.MAM+'"]').attr('id');
                    return attrs;
                }
            },

            ChatBoxView: {
                render: function () {
                    var result = this.__super__.render.apply(this, arguments);
                    if (!this.disable_mam) {
                        this.$content.on('scroll', _.debounce(this.onScroll.bind(this), 100));
                    }
                    return result;
                },

                afterMessagesFetched: function () {
                    var _converse = this.__super__._converse;
                    if (this.disable_mam ||
                            !_converse.features.findWhere({'var': Strophe.NS.MAM})) {
                        return this.__super__.afterMessagesFetched.apply(this, arguments);
                    }
                    if (!this.model.get('mam_initialized') &&
                            this.model.messages.length < _converse.archived_messages_page_size) {

                        this.fetchArchivedMessages({
                            'before': '', // Page backwards from the most recent message
                            'with': this.model.get('jid'),
                            'max': _converse.archived_messages_page_size
                        });
                        this.model.save({'mam_initialized': true});
                    }
                    return this.__super__.afterMessagesFetched.apply(this, arguments);
                },

                fetchArchivedMessages: function (options) {
                    /* Fetch archived chat messages from the XMPP server.
                     *
                     * Then, upon receiving them, call onMessage on the chat
                     * box, so that they are displayed inside it.
                     */
                    var _converse = this.__super__._converse;
                    if (!_converse.features.findWhere({'var': Strophe.NS.MAM})) {
                        _converse.log(
                            "Attempted to fetch archived messages but this "+
                            "user's server doesn't support XEP-0313");
                        return;
                    }
                    if (this.disable_mam) {
                        return;
                    }
                    this.addSpinner();
                    _converse.queryForArchivedMessages(options, function (messages) {
                            this.clearSpinner();
                            if (messages.length) {
                                _.each(messages, _converse.chatboxes.onMessage.bind(_converse.chatboxes));
                            }
                        }.bind(this),
                        function () {
                            this.clearSpinner();
                            _converse.log(
                                "Error or timeout while trying to fetch "+
                                "archived messages", "error");
                        }.bind(this)
                    );
                },

                onScroll: function (ev) {
                    var _converse = this.__super__._converse;
                    if ($(ev.target).scrollTop() === 0 && this.model.messages.length) {
                        this.fetchArchivedMessages({
                            'before': this.model.messages.at(0).get('archive_id'),
                            'with': this.model.get('jid'),
                            'max': _converse.archived_messages_page_size
                        });
                    }
                },
            },

            ChatRoomView: {
                render: function () {
                    var result = this.__super__.render.apply(this, arguments);
                    if (!this.disable_mam) {
                        this.$content.on('scroll', _.debounce(this.onScroll.bind(this), 100));
                    }
                    return result;
                },

                handleMUCMessage: function (stanza) {
                    /* MAM (message archive management XEP-0313) messages are
                     * ignored, since they're handled separately.
                     */
                    var is_mam = $(stanza).find('[xmlns="'+Strophe.NS.MAM+'"]').length > 0;
                    if (is_mam) {
                        return true;
                    }
                    return this.__super__.handleMUCMessage.apply(this, arguments);
                },

                fetchArchivedMessages: function (options) {
                    /* Fetch archived chat messages from the XMPP server.
                     *
                     * Then, upon receiving them, call onChatRoomMessage
                     * so that they are displayed inside it.
                     */
                    var that = this;
                    var _converse = this.__super__._converse;
                    if (!_converse.features.findWhere({'var': Strophe.NS.MAM})) {
                        _converse.log(
                            "Attempted to fetch archived messages but this "+
                            "user's server doesn't support XEP-0313");
                        return;
                    }
                    if (!this.model.get('mam_enabled')) {
                        return;
                    }
                    this.addSpinner();
                    _converse.api.archive.query(_.extend(options, {'groupchat': true}),
                        function (messages) {
                            that.clearSpinner();
                            if (messages.length) {
                                _.each(messages, that.onChatRoomMessage.bind(that));
                            }
                        },
                        function () {
                            that.clearSpinner();
                            _converse.log(
                                "Error while trying to fetch archived messages",
                                "error");
                        }
                    );
                }
            }
        },


        initialize: function () {
            /* The initialize function gets called as soon as the plugin is
             * loaded by Converse.js's plugin machinery.
             */
            var _converse = this._converse;

            this.updateSettings({
                archived_messages_page_size: '50',
                message_archiving: undefined, // Supported values are 'always', 'never', 'roster' (https://xmpp.org/extensions/xep-0313.html#prefs)
                message_archiving_timeout: 8000, // Time (in milliseconds) to wait before aborting MAM request
            });

            _converse.queryForArchivedMessages = function (options, callback, errback) {
                /* Do a MAM (XEP-0313) query for archived messages.
                 *
                 * Parameters:
                 *    (Object) options - Query parameters, either MAM-specific or also for Result Set Management.
                 *    (Function) callback - A function to call whenever we receive query-relevant stanza.
                 *    (Function) errback - A function to call when an error stanza is received.
                 *
                 * The options parameter can also be an instance of
                 * Strophe.RSM to enable easy querying between results pages.
                 *
                 * The callback function may be called multiple times, first
                 * for the initial IQ result and then for each message
                 * returned. The last time the callback is called, a
                 * Strophe.RSM object is returned on which "next" or "previous"
                 * can be called before passing it in again to this method, to
                 * get the next or previous page in the result set.
                 */
                var date, messages = [];
                if (_.isFunction(options)) {
                    callback = options;
                    errback = callback;
                }
                /*
                if (!_converse.features.findWhere({'var': Strophe.NS.MAM})) {
                    _converse.log('This server does not support XEP-0313, Message Archive Management');
                    errback(null);
                    return;
                }
                */
                var queryid = _converse.connection.getUniqueId();
                var attrs = {'type':'set'};
                if (!_.isUndefined(options) && options.groupchat) {
                    if (!options['with']) {
                        throw new Error('You need to specify a "with" value containing the chat room JID, when querying groupchat messages.');
                    }
                    attrs.to = options['with'];
                }
                var stanza = $iq(attrs).c('query', {'xmlns':Strophe.NS.MAM, 'queryid':queryid});
                if (!_.isUndefined(options)) {
                    stanza.c('x', {'xmlns':Strophe.NS.XFORM, 'type': 'submit'})
                            .c('field', {'var':'FORM_TYPE', 'type': 'hidden'})
                            .c('value').t(Strophe.NS.MAM).up().up();

                    if (options['with'] && !options.groupchat) {
                        stanza.c('field', {'var':'with'}).c('value').t(options['with']).up().up();
                    }
                    _.each(['start', 'end'], function (t) {
                        if (options[t]) {
                            date = moment(options[t]);
                            if (date.isValid()) {
                                stanza.c('field', {'var':t}).c('value').t(date.format()).up().up();
                            } else {
                                throw new TypeError('archive.query: invalid date provided for: '+t);
                            }
                        }
                    });
                    stanza.up();
                    if (options instanceof Strophe.RSM) {
                        stanza.cnode(options.toXML());
                    } else if (_.intersection(RSM_ATTRIBUTES, _.keys(options)).length) {
                        stanza.cnode(new Strophe.RSM(options).toXML());
                    }
                }

                if (_.isFunction(callback)) {
                    _converse.connection.addHandler(function (message) {
                        var $msg = $(message), rsm,
                            $fin = $msg.find('fin[xmlns="'+Strophe.NS.MAM+'"]');
                        if ($fin.length && $fin.attr('queryid') === queryid) {
                            rsm = new Strophe.RSM({xml: $fin.find('set')[0]});
                            _.extend(rsm, _.pick(options, ['max']));
                            _.extend(rsm, _.pick(options, MAM_ATTRIBUTES));
                            callback(messages, rsm);
                            return false; // We've received all messages, decommission this handler
                        } else if (queryid === $msg.find('result').attr('queryid')) {
                            messages.push(message);
                        }
                        return true;
                    }, Strophe.NS.MAM);
                }
                _converse.connection.sendIQ(stanza, null, errback, _converse.message_archiving_timeout);
            };

            _.extend(_converse.api, {
                /* Extend default converse.js API to add methods specific to MAM
                 */
                'archive': {
                    'query': _converse.queryForArchivedMessages.bind(_converse)
                }
            });

            _converse.onMAMError = function (iq) {
                if ($(iq).find('feature-not-implemented').length) {
                    _converse.log("Message Archive Management (XEP-0313) not supported by this browser");
                } else {
                    _converse.log("An error occured while trying to set archiving preferences.");
                    _converse.log(iq);
                }
            };

            _converse.onMAMPreferences = function (feature, iq) {
                /* Handle returned IQ stanza containing Message Archive
                 * Management (XEP-0313) preferences.
                 *
                 * XXX: For now we only handle the global default preference.
                 * The XEP also provides for per-JID preferences, which is
                 * currently not supported in converse.js.
                 *
                 * Per JID preferences will be set in chat boxes, so it'll
                 * probbaly be handled elsewhere in any case.
                 */
                var $prefs = $(iq).find('prefs[xmlns="'+Strophe.NS.MAM+'"]');
                var default_pref = $prefs.attr('default');
                var stanza;
                if (default_pref !== _converse.message_archiving) {
                    stanza = $iq({'type': 'set'}).c('prefs', {'xmlns':Strophe.NS.MAM, 'default':_converse.message_archiving});
                    $prefs.children().each(function (idx, child) {
                        stanza.cnode(child).up();
                    });
                    _converse.connection.sendIQ(stanza, _.partial(function (feature, iq) {
                            // XXX: Strictly speaking, the server should respond with the updated prefs
                            // (see example 18: https://xmpp.org/extensions/xep-0313.html#config)
                            // but Prosody doesn't do this, so we don't rely on it.
                            feature.save({'preferences': {'default':_converse.message_archiving}});
                        }, feature),
                        _converse.onMAMError
                    );
                } else {
                    feature.save({'preferences': {'default':_converse.message_archiving}});
                }
            };


            var onFeatureAdded = function (feature) {
                var prefs = feature.get('preferences') || {};
                if (feature.get('var') === Strophe.NS.MAM &&
                        prefs['default'] !== _converse.message_archiving &&
                        !_.isUndefined(_converse.message_archiving) ) {
                    // Ask the server for archiving preferences
                    _converse.connection.sendIQ(
                        $iq({'type': 'get'}).c('prefs', {'xmlns': Strophe.NS.MAM}),
                        _.partial(_converse.onMAMPreferences, feature),
                        _.partial(_converse.onMAMError, feature)
                    );
                }
            };
            _converse.on('serviceDiscovered', onFeatureAdded.bind(_converse.features));
        }
    });
}));

/* Plugin to implement the vCard extension.
 *  http://xmpp.org/extensions/xep-0054.html
 *
 *  Author: Nathan Zorn (nathan.zorn@gmail.com)
 *  AMD support by JC Brand
 */
(function (root, factory) {
    if (typeof define === 'function' && define.amd) {
        // AMD. Register as an anonymous module.
        define('strophe.vcard',[
            "strophe"
        ], function (Strophe) {
            factory(
                Strophe.Strophe,
                Strophe.$build,
                Strophe.$iq ,
                Strophe.$msg,
                Strophe.$pres
            );
            return Strophe;
        });
    } else {
        // Browser globals
        factory(
            root.Strophe,
            root.$build,
            root.$iq ,
            root.$msg,
            root.$pres
        );
    }
}(this, function (Strophe, $build, $iq, $msg, $pres) {

    var buildIq = function(type, jid, vCardEl) {
        var iq = $iq(jid ? {type: type, to: jid} : {type: type});
        iq.c("vCard", {xmlns: Strophe.NS.VCARD});
        if (vCardEl) {
            iq.cnode(vCardEl);
        }
        return iq;
    };

    Strophe.addConnectionPlugin('vcard', {
        _connection: null,
        init: function(conn) {
            this._connection = conn;
            return Strophe.addNamespace('VCARD', 'vcard-temp');
        },

        /* Function
         * Retrieve a vCard for a JID/Entity
         * Parameters:
         * (Function) handler_cb - The callback function used to handle the request.
         * (String) jid - optional - The name of the entity to request the vCard
         *     If no jid is given, this function retrieves the current user's vcard.
         * */
        get: function(handler_cb, jid, error_cb) {
            var iq = buildIq("get", jid);
            return this._connection.sendIQ(iq, handler_cb, error_cb);
        },

        /* Function
         *  Set an entity's vCard.
         */
        set: function(handler_cb, vCardEl, jid, error_cb) {
            var iq = buildIq("set", jid, vCardEl);
            return this._connection.sendIQ(iq, handler_cb, error_cb);
        }
    });
}));

// Converse.js (A browser based XMPP chat client)
// http://conversejs.org
//
// Copyright (c) 2012-2017, Jan-Carel Brand <jc@opkode.com>
// Licensed under the Mozilla Public License (MPLv2)
//
/*global define */

(function (root, factory) {
    define('converse-vcard',["converse-core", "strophe.vcard"], factory);
}(this, function (converse) {
    "use strict";
    var Strophe = converse.env.Strophe,
        $ = converse.env.jQuery,
        _ = converse.env._,
        moment = converse.env.moment;

    converse.plugins.add('converse-vcard', {

        overrides: {
            // Overrides mentioned here will be picked up by converse.js's
            // plugin architecture they will replace existing methods on the
            // relevant objects or classes.
            //
            // New functions which don't exist yet can also be added.

            Features: {
                addClientFeatures: function () {
                    var _converse = this.__super__._converse;
                    this.__super__.addClientFeatures.apply(this, arguments);
                    if (_converse.use_vcards) {
                        _converse.connection.disco.addFeature(Strophe.NS.VCARD);
                    }
                }
            },

            RosterContacts: {
                createRequestingContact: function (presence) {
                    var _converse = this.__super__._converse;
                    var bare_jid = Strophe.getBareJidFromJid(presence.getAttribute('from'));
                    _converse.getVCard(
                        bare_jid,
                        _.partial(_converse.createRequestingContactFromVCard, presence),
                        function (iq, jid) {
                            _converse.log("Error while retrieving vcard for "+jid);
                            _converse.createRequestingContactFromVCard(presence, iq, jid);
                        }
                    );
                }
            }
        },


        initialize: function () {
            /* The initialize function gets called as soon as the plugin is
             * loaded by converse.js's plugin machinery.
             */
            var _converse = this._converse;
            this.updateSettings({
                use_vcards: true,
            });

            _converse.createRequestingContactFromVCard = function (presence, iq, jid, fullname, img, img_type, url) {
                var bare_jid = Strophe.getBareJidFromJid(jid);
                var nick = $(presence).children('nick[xmlns="'+Strophe.NS.NICK+'"]').text();
                var user_data = {
                    jid: bare_jid,
                    subscription: 'none',
                    ask: null,
                    requesting: true,
                    fullname: fullname || nick || bare_jid,
                    image: img,
                    image_type: img_type,
                    url: url,
                    vcard_updated: moment().format()
                };
                _converse.roster.create(user_data);
                _converse.emit('contactRequest', user_data);
            };

            _converse.onVCardError = function (jid, iq, errback) {
                var contact = _converse.roster.get(jid);
                if (contact) {
                    contact.save({ 'vcard_updated': moment().format() });
                }
                if (errback) { errback(iq, jid); }
            };

            _converse.onVCardData = function (jid, iq, callback) {
                var $vcard = $(iq).find('vCard'),
                    fullname = $vcard.find('FN').text(),
                    img = $vcard.find('BINVAL').text(),
                    img_type = $vcard.find('TYPE').text(),
                    url = $vcard.find('URL').text();
                if (jid) {
                    var contact = _converse.roster.get(jid);
                    if (contact) {
                        fullname = _.isEmpty(fullname)? contact.get('fullname') || jid: fullname;
                        contact.save({
                            'fullname': fullname,
                            'image_type': img_type,
                            'image': img,
                            'url': url,
                            'vcard_updated': moment().format()
                        });
                    }
                }
                if (callback) {
                    callback(iq, jid, fullname, img, img_type, url);
                }
            };

            _converse.getVCard = function (jid, callback, errback) {
                /* Request the VCard of another user.
                 *
                 * Parameters:
                 *    (String) jid - The Jabber ID of the user whose VCard
                 *      is being requested.
                 *    (Function) callback - A function to call once the VCard is
                 *      returned.
                 *    (Function) errback - A function to call if an error occured
                 *      while trying to fetch the VCard.
                 */
                if (!_converse.use_vcards) {
                    if (callback) { callback(null, jid); }
                } else {
                    _converse.connection.vcard.get(
                        _.partial(_converse.onVCardData, jid, _, callback),
                        jid,
                        _.partial(_converse.onVCardError, jid, _, errback));
                }
            };

            var updateVCardForChatBox = function (chatbox) {
                if (!_converse.use_vcards) { return; }
                var jid = chatbox.model.get('jid'),
                    contact = _converse.roster.get(jid);
                if ((contact) && (!contact.get('vcard_updated'))) {
                    _converse.getVCard(
                        jid,
                        function (iq, jid, fullname, image, image_type, url) {
                            chatbox.model.save({
                                'fullname' : fullname || jid,
                                'url': url,
                                'image_type': image_type,
                                'image': image
                            });
                        },
                        function () {
                            _converse.log(
                                "updateVCardForChatBox: Error occured while fetching vcard"
                            );
                        }
                    );
                }
            };
            _converse.on('chatBoxInitialized', updateVCardForChatBox);


            var onContactAdd = function (contact) {
                if (!contact.get('vcard_updated')) {
                    // This will update the vcard, which triggers a change
                    // request which will rerender the roster contact.
                    _converse.getVCard(contact.get('jid'));
                }
            };
            _converse.on('initialized', function () {
                _converse.roster.on("add", onContactAdd);
            });

            var fetchOwnVCard = function () {
                if (_converse.xmppstatus.get('fullname') === undefined) {
                    _converse.getVCard(
                        null, // No 'to' attr when getting one's own vCard
                        function (iq, jid, fullname) {
                            _converse.xmppstatus.save({'fullname': fullname});
                        }
                    );
                }
            };
            _converse.on('statusInitialized', fetchOwnVCard);
        }
    });
}));


define('tpl!toolbar_otr', ['lodash'], function(_) {return function(obj) {
obj || (obj = {});
var __t, __p = '', __e = _.escape, __j = Array.prototype.join;
function print() { __p += __j.call(arguments, '') }
with (obj) {

 if (allow_otr)  { ;
__p += '\n    <li class="toggle-otr ' +
__e(otr_status_class) +
'" title="' +
__e(otr_tooltip) +
'">\n        <span class="chat-toolbar-text">' +
__e(otr_translated_status) +
'</span>\n        ';
 if (otr_status == UNENCRYPTED) { ;
__p += '\n            <span class="icon-unlocked"></span>\n        ';
 } ;
__p += '\n        ';
 if (otr_status == UNVERIFIED) { ;
__p += '\n            <span class="icon-lock"></span>\n        ';
 } ;
__p += '\n        ';
 if (otr_status == VERIFIED) { ;
__p += '\n            <span class="icon-lock"></span>\n        ';
 } ;
__p += '\n        ';
 if (otr_status == FINISHED) { ;
__p += '\n            <span class="icon-unlocked"></span>\n        ';
 } ;
__p += '\n        <ul>\n            ';
 if (otr_status == UNENCRYPTED) { ;
__p += '\n               <li><a class="start-otr" href="#">' +
__e(label_start_encrypted_conversation) +
'</a></li>\n            ';
 } ;
__p += '\n            ';
 if (otr_status != UNENCRYPTED) { ;
__p += '\n               <li><a class="start-otr" href="#">' +
__e(label_refresh_encrypted_conversation) +
'</a></li>\n               <li><a class="end-otr" href="#">' +
__e(label_end_encrypted_conversation) +
'</a></li>\n               <li><a class="auth-otr" data-scheme="smp" href="#">' +
__e(label_verify_with_smp) +
'</a></li>\n            ';
 } ;
__p += '\n            ';
 if (otr_status == UNVERIFIED) { ;
__p += '\n               <li><a class="auth-otr" data-scheme="fingerprint" href="#">' +
__e(label_verify_with_fingerprints) +
'</a></li>\n            ';
 } ;
__p += '\n            <li><a href="http://www.cypherpunks.ca/otr/help/3.2.0/levels.php" target="_blank" rel="noopener">' +
__e(label_whats_this) +
'</a></li>\n        </ul>\n    </li>\n';
 } ;
__p += '\n';

}
return __p
};});

;(function (root, factory) {

  if (typeof define === 'function' && define.amd) {
    // XXX: Simply add an empty deps list here so that almond works.
    define('bigint',[], factory.bind(root, root.crypto || root.msCrypto))
  } else if (typeof module !== 'undefined' && module.exports) {
    module.exports = factory(require('crypto'))
  } else {
    root.BigInt = factory(root.crypto || root.msCrypto)
  }

}(this, function (crypto) {

  ////////////////////////////////////////////////////////////////////////////////////////
  // Big Integer Library v. 5.5
  // Created 2000, last modified 2013
  // Leemon Baird
  // www.leemon.com
  //
  // Version history:
  // v 5.5  17 Mar 2013
  //   - two lines of a form like "if (x<0) x+=n" had the "if" changed to "while" to
  //     handle the case when x<-n. (Thanks to James Ansell for finding that bug)
  // v 5.4  3 Oct 2009
  //   - added "var i" to greaterShift() so i is not global. (Thanks to Péter Szabó for finding that bug)
  //
  // v 5.3  21 Sep 2009
  //   - added randProbPrime(k) for probable primes
  //   - unrolled loop in mont_ (slightly faster)
  //   - millerRabin now takes a bigInt parameter rather than an int
  //
  // v 5.2  15 Sep 2009
  //   - fixed capitalization in call to int2bigInt in randBigInt
  //     (thanks to Emili Evripidou, Reinhold Behringer, and Samuel Macaleese for finding that bug)
  //
  // v 5.1  8 Oct 2007 
  //   - renamed inverseModInt_ to inverseModInt since it doesn't change its parameters
  //   - added functions GCD and randBigInt, which call GCD_ and randBigInt_
  //   - fixed a bug found by Rob Visser (see comment with his name below)
  //   - improved comments
  //
  // This file is public domain.   You can use it for any purpose without restriction.
  // I do not guarantee that it is correct, so use it at your own risk.  If you use 
  // it for something interesting, I'd appreciate hearing about it.  If you find 
  // any bugs or make any improvements, I'd appreciate hearing about those too.
  // It would also be nice if my name and URL were left in the comments.  But none 
  // of that is required.
  //
  // This code defines a bigInt library for arbitrary-precision integers.
  // A bigInt is an array of integers storing the value in chunks of bpe bits, 
  // little endian (buff[0] is the least significant word).
  // Negative bigInts are stored two's complement.  Almost all the functions treat
  // bigInts as nonnegative.  The few that view them as two's complement say so
  // in their comments.  Some functions assume their parameters have at least one 
  // leading zero element. Functions with an underscore at the end of the name put
  // their answer into one of the arrays passed in, and have unpredictable behavior 
  // in case of overflow, so the caller must make sure the arrays are big enough to 
  // hold the answer.  But the average user should never have to call any of the 
  // underscored functions.  Each important underscored function has a wrapper function 
  // of the same name without the underscore that takes care of the details for you.  
  // For each underscored function where a parameter is modified, that same variable 
  // must not be used as another argument too.  So, you cannot square x by doing 
  // multMod_(x,x,n).  You must use squareMod_(x,n) instead, or do y=dup(x); multMod_(x,y,n).
  // Or simply use the multMod(x,x,n) function without the underscore, where
  // such issues never arise, because non-underscored functions never change
  // their parameters; they always allocate new memory for the answer that is returned.
  //
  // These functions are designed to avoid frequent dynamic memory allocation in the inner loop.
  // For most functions, if it needs a BigInt as a local variable it will actually use
  // a global, and will only allocate to it only when it's not the right size.  This ensures
  // that when a function is called repeatedly with same-sized parameters, it only allocates
  // memory on the first call.
  //
  // Note that for cryptographic purposes, the calls to Math.random() must 
  // be replaced with calls to a better pseudorandom number generator.
  //
  // In the following, "bigInt" means a bigInt with at least one leading zero element,
  // and "integer" means a nonnegative integer less than radix.  In some cases, integer 
  // can be negative.  Negative bigInts are 2s complement.
  // 
  // The following functions do not modify their inputs.
  // Those returning a bigInt, string, or Array will dynamically allocate memory for that value.
  // Those returning a boolean will return the integer 0 (false) or 1 (true).
  // Those returning boolean or int will not allocate memory except possibly on the first 
  // time they're called with a given parameter size.
  // 
  // bigInt  add(x,y)               //return (x+y) for bigInts x and y.  
  // bigInt  addInt(x,n)            //return (x+n) where x is a bigInt and n is an integer.
  // string  bigInt2str(x,base)     //return a string form of bigInt x in a given base, with 2 <= base <= 95
  // int     bitSize(x)             //return how many bits long the bigInt x is, not counting leading zeros
  // bigInt  dup(x)                 //return a copy of bigInt x
  // boolean equals(x,y)            //is the bigInt x equal to the bigint y?
  // boolean equalsInt(x,y)         //is bigint x equal to integer y?
  // bigInt  expand(x,n)            //return a copy of x with at least n elements, adding leading zeros if needed
  // Array   findPrimes(n)          //return array of all primes less than integer n
  // bigInt  GCD(x,y)               //return greatest common divisor of bigInts x and y (each with same number of elements).
  // boolean greater(x,y)           //is x>y?  (x and y are nonnegative bigInts)
  // boolean greaterShift(x,y,shift)//is (x <<(shift*bpe)) > y?
  // bigInt  int2bigInt(t,n,m)      //return a bigInt equal to integer t, with at least n bits and m array elements
  // bigInt  inverseMod(x,n)        //return (x**(-1) mod n) for bigInts x and n.  If no inverse exists, it returns null
  // int     inverseModInt(x,n)     //return x**(-1) mod n, for integers x and n.  Return 0 if there is no inverse
  // boolean isZero(x)              //is the bigInt x equal to zero?
  // boolean millerRabin(x,b)       //does one round of Miller-Rabin base integer b say that bigInt x is possibly prime? (b is bigInt, 1<b<x)
  // boolean millerRabinInt(x,b)    //does one round of Miller-Rabin base integer b say that bigInt x is possibly prime? (b is int,    1<b<x)
  // bigInt  mod(x,n)               //return a new bigInt equal to (x mod n) for bigInts x and n.
  // int     modInt(x,n)            //return x mod n for bigInt x and integer n.
  // bigInt  mult(x,y)              //return x*y for bigInts x and y. This is faster when y<x.
  // bigInt  multMod(x,y,n)         //return (x*y mod n) for bigInts x,y,n.  For greater speed, let y<x.
  // boolean negative(x)            //is bigInt x negative?
  // bigInt  powMod(x,y,n)          //return (x**y mod n) where x,y,n are bigInts and ** is exponentiation.  0**0=1. Faster for odd n.
  // bigInt  randBigInt(n,s)        //return an n-bit random BigInt (n>=1).  If s=1, then the most significant of those n bits is set to 1.
  // bigInt  randTruePrime(k)       //return a new, random, k-bit, true prime bigInt using Maurer's algorithm.
  // bigInt  randProbPrime(k)       //return a new, random, k-bit, probable prime bigInt (probability it's composite less than 2^-80).
  // bigInt  str2bigInt(s,b,n,m)    //return a bigInt for number represented in string s in base b with at least n bits and m array elements
  // bigInt  sub(x,y)               //return (x-y) for bigInts x and y.  Negative answers will be 2s complement
  // bigInt  trim(x,k)              //return a copy of x with exactly k leading zero elements
  //
  //
  // The following functions each have a non-underscored version, which most users should call instead.
  // These functions each write to a single parameter, and the caller is responsible for ensuring the array 
  // passed in is large enough to hold the result. 
  //
  // void    addInt_(x,n)          //do x=x+n where x is a bigInt and n is an integer
  // void    add_(x,y)             //do x=x+y for bigInts x and y
  // void    copy_(x,y)            //do x=y on bigInts x and y
  // void    copyInt_(x,n)         //do x=n on bigInt x and integer n
  // void    GCD_(x,y)             //set x to the greatest common divisor of bigInts x and y, (y is destroyed).  (This never overflows its array).
  // boolean inverseMod_(x,n)      //do x=x**(-1) mod n, for bigInts x and n. Returns 1 (0) if inverse does (doesn't) exist
  // void    mod_(x,n)             //do x=x mod n for bigInts x and n. (This never overflows its array).
  // void    mult_(x,y)            //do x=x*y for bigInts x and y.
  // void    multMod_(x,y,n)       //do x=x*y  mod n for bigInts x,y,n.
  // void    powMod_(x,y,n)        //do x=x**y mod n, where x,y,n are bigInts (n is odd) and ** is exponentiation.  0**0=1.
  // void    randBigInt_(b,n,s)    //do b = an n-bit random BigInt. if s=1, then nth bit (most significant bit) is set to 1. n>=1.
  // void    randTruePrime_(ans,k) //do ans = a random k-bit true random prime (not just probable prime) with 1 in the msb.
  // void    sub_(x,y)             //do x=x-y for bigInts x and y. Negative answers will be 2s complement.
  //
  // The following functions do NOT have a non-underscored version. 
  // They each write a bigInt result to one or more parameters.  The caller is responsible for
  // ensuring the arrays passed in are large enough to hold the results. 
  //
  // void addShift_(x,y,ys)       //do x=x+(y<<(ys*bpe))
  // void carry_(x)               //do carries and borrows so each element of the bigInt x fits in bpe bits.
  // void divide_(x,y,q,r)        //divide x by y giving quotient q and remainder r
  // int  divInt_(x,n)            //do x=floor(x/n) for bigInt x and integer n, and return the remainder. (This never overflows its array).
  // int  eGCD_(x,y,d,a,b)        //sets a,b,d to positive bigInts such that d = GCD_(x,y) = a*x-b*y
  // void halve_(x)               //do x=floor(|x|/2)*sgn(x) for bigInt x in 2's complement.  (This never overflows its array).
  // void leftShift_(x,n)         //left shift bigInt x by n bits.  n<bpe.
  // void linComb_(x,y,a,b)       //do x=a*x+b*y for bigInts x and y and integers a and b
  // void linCombShift_(x,y,b,ys) //do x=x+b*(y<<(ys*bpe)) for bigInts x and y, and integers b and ys
  // void mont_(x,y,n,np)         //Montgomery multiplication (see comments where the function is defined)
  // void multInt_(x,n)           //do x=x*n where x is a bigInt and n is an integer.
  // void rightShift_(x,n)        //right shift bigInt x by n bits. (This never overflows its array).
  // void squareMod_(x,n)         //do x=x*x  mod n for bigInts x,n
  // void subShift_(x,y,ys)       //do x=x-(y<<(ys*bpe)). Negative answers will be 2s complement.
  //
  // The following functions are based on algorithms from the _Handbook of Applied Cryptography_
  //    powMod_()           = algorithm 14.94, Montgomery exponentiation
  //    eGCD_,inverseMod_() = algorithm 14.61, Binary extended GCD_
  //    GCD_()              = algorothm 14.57, Lehmer's algorithm
  //    mont_()             = algorithm 14.36, Montgomery multiplication
  //    divide_()           = algorithm 14.20  Multiple-precision division
  //    squareMod_()        = algorithm 14.16  Multiple-precision squaring
  //    randTruePrime_()    = algorithm  4.62, Maurer's algorithm
  //    millerRabin()       = algorithm  4.24, Miller-Rabin algorithm
  //
  // Profiling shows:
  //     randTruePrime_() spends:
  //         10% of its time in calls to powMod_()
  //         85% of its time in calls to millerRabin()
  //     millerRabin() spends:
  //         99% of its time in calls to powMod_()   (always with a base of 2)
  //     powMod_() spends:
  //         94% of its time in calls to mont_()  (almost always with x==y)
  //
  // This suggests there are several ways to speed up this library slightly:
  //     - convert powMod_ to use a Montgomery form of k-ary window (or maybe a Montgomery form of sliding window)
  //         -- this should especially focus on being fast when raising 2 to a power mod n
  //     - convert randTruePrime_() to use a minimum r of 1/3 instead of 1/2 with the appropriate change to the test
  //     - tune the parameters in randTruePrime_(), including c, m, and recLimit
  //     - speed up the single loop in mont_() that takes 95% of the runtime, perhaps by reducing checking
  //       within the loop when all the parameters are the same length.
  //
  // There are several ideas that look like they wouldn't help much at all:
  //     - replacing trial division in randTruePrime_() with a sieve (that speeds up something taking almost no time anyway)
  //     - increase bpe from 15 to 30 (that would help if we had a 32*32->64 multiplier, but not with JavaScript's 32*32->32)
  //     - speeding up mont_(x,y,n,np) when x==y by doing a non-modular, non-Montgomery square
  //       followed by a Montgomery reduction.  The intermediate answer will be twice as long as x, so that
  //       method would be slower.  This is unfortunate because the code currently spends almost all of its time
  //       doing mont_(x,x,...), both for randTruePrime_() and powMod_().  A faster method for Montgomery squaring
  //       would have a large impact on the speed of randTruePrime_() and powMod_().  HAC has a couple of poorly-worded
  //       sentences that seem to imply it's faster to do a non-modular square followed by a single
  //       Montgomery reduction, but that's obviously wrong.
  ////////////////////////////////////////////////////////////////////////////////////////

  //globals

  // The number of significant bits in the fraction of a JavaScript
  // floating-point number is 52, independent of platform.
  // See: https://github.com/arlolra/otr/issues/41

  var bpe = 26;          // bits stored per array element
  var radix = 1 << bpe;  // equals 2^bpe
  var mask = radix - 1;  // AND this with an array element to chop it down to bpe bits

  //the digits for converting to different bases
  var digitsStr='0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz_=!@#$%^&*()[]{}|;:,.<>/?`~ \\\'\"+-';

  var one=int2bigInt(1,1,1);     //constant used in powMod_()

  //the following global variables are scratchpad memory to 
  //reduce dynamic memory allocation in the inner loop
  var t=new Array(0);
  var ss=t;       //used in mult_()
  var s0=t;       //used in multMod_(), squareMod_()
  var s1=t;       //used in powMod_(), multMod_(), squareMod_()
  var s2=t;       //used in powMod_(), multMod_()
  var s3=t;       //used in powMod_()
  var s4=t, s5=t; //used in mod_()
  var s6=t;       //used in bigInt2str()
  var s7=t;       //used in powMod_()
  var T=t;        //used in GCD_()
  var sa=t;       //used in mont_()
  var mr_x1=t, mr_r=t, mr_a=t;                                      //used in millerRabin()
  var eg_v=t, eg_u=t, eg_A=t, eg_B=t, eg_C=t, eg_D=t;               //used in eGCD_(), inverseMod_()
  var md_q1=t, md_q2=t, md_q3=t, md_r=t, md_r1=t, md_r2=t, md_tt=t; //used in mod_()

  var primes=t, pows=t, s_i=t, s_i2=t, s_R=t, s_rm=t, s_q=t, s_n1=t;
  var s_a=t, s_r2=t, s_n=t, s_b=t, s_d=t, s_x1=t, s_x2=t, s_aa=t; //used in randTruePrime_()
    
  var rpprb=t; //used in randProbPrimeRounds() (which also uses "primes")

  ////////////////////////////////////////////////////////////////////////////////////////


  //return array of all primes less than integer n
  function findPrimes(n) {
    var i,s,p,ans;
    s=new Array(n);
    for (i=0;i<n;i++)
      s[i]=0;
    s[0]=2;
    p=0;    //first p elements of s are primes, the rest are a sieve
    for(;s[p]<n;) {                  //s[p] is the pth prime
      for(i=s[p]*s[p]; i<n; i+=s[p]) //mark multiples of s[p]
        s[i]=1;
      p++;
      s[p]=s[p-1]+1;
      for(; s[p]<n && s[s[p]]; s[p]++); //find next prime (where s[p]==0)
    }
    ans=new Array(p);
    for(i=0;i<p;i++)
      ans[i]=s[i];
    return ans;
  }


  //does a single round of Miller-Rabin base b consider x to be a possible prime?
  //x is a bigInt, and b is an integer, with b<x
  function millerRabinInt(x,b) {
    if (mr_x1.length!=x.length) {
      mr_x1=dup(x);
      mr_r=dup(x);
      mr_a=dup(x);
    }

    copyInt_(mr_a,b);
    return millerRabin(x,mr_a);
  }

  //does a single round of Miller-Rabin base b consider x to be a possible prime?
  //x and b are bigInts with b<x
  function millerRabin(x,b) {
    var i,j,k,s;

    if (mr_x1.length!=x.length) {
      mr_x1=dup(x);
      mr_r=dup(x);
      mr_a=dup(x);
    }

    copy_(mr_a,b);
    copy_(mr_r,x);
    copy_(mr_x1,x);

    addInt_(mr_r,-1);
    addInt_(mr_x1,-1);

    //s=the highest power of two that divides mr_r

    /*
    k=0;
    for (i=0;i<mr_r.length;i++)
      for (j=1;j<mask;j<<=1)
        if (x[i] & j) {
          s=(k<mr_r.length+bpe ? k : 0); 
           i=mr_r.length;
           j=mask;
        } else
          k++;
    */

    /* http://www.javascripter.net/math/primes/millerrabinbug-bigint54.htm */
    if (isZero(mr_r)) return 0;
    for (k=0; mr_r[k]==0; k++);
    for (i=1,j=2; mr_r[k]%j==0; j*=2,i++ );
    s = k*bpe + i - 1;
    /* end */

    if (s)                
      rightShift_(mr_r,s);

    powMod_(mr_a,mr_r,x);

    if (!equalsInt(mr_a,1) && !equals(mr_a,mr_x1)) {
      j=1;
      while (j<=s-1 && !equals(mr_a,mr_x1)) {
        squareMod_(mr_a,x);
        if (equalsInt(mr_a,1)) {
          return 0;
        }
        j++;
      }
      if (!equals(mr_a,mr_x1)) {
        return 0;
      }
    }
    return 1;  
  }

  //returns how many bits long the bigInt is, not counting leading zeros.
  function bitSize(x) {
    var j,z,w;
    for (j=x.length-1; (x[j]==0) && (j>0); j--);
    for (z=0,w=x[j]; w; (w>>=1),z++);
    z+=bpe*j;
    return z;
  }

  //return a copy of x with at least n elements, adding leading zeros if needed
  function expand(x,n) {
    var ans=int2bigInt(0,(x.length>n ? x.length : n)*bpe,0);
    copy_(ans,x);
    return ans;
  }

  //return a k-bit true random prime using Maurer's algorithm.
  function randTruePrime(k) {
    var ans=int2bigInt(0,k,0);
    randTruePrime_(ans,k);
    return trim(ans,1);
  }

  //return a k-bit random probable prime with probability of error < 2^-80
  function randProbPrime(k) {
    if (k>=600) return randProbPrimeRounds(k,2); //numbers from HAC table 4.3
    if (k>=550) return randProbPrimeRounds(k,4);
    if (k>=500) return randProbPrimeRounds(k,5);
    if (k>=400) return randProbPrimeRounds(k,6);
    if (k>=350) return randProbPrimeRounds(k,7);
    if (k>=300) return randProbPrimeRounds(k,9);
    if (k>=250) return randProbPrimeRounds(k,12); //numbers from HAC table 4.4
    if (k>=200) return randProbPrimeRounds(k,15);
    if (k>=150) return randProbPrimeRounds(k,18);
    if (k>=100) return randProbPrimeRounds(k,27);
                return randProbPrimeRounds(k,40); //number from HAC remark 4.26 (only an estimate)
  }

  //return a k-bit probable random prime using n rounds of Miller Rabin (after trial division with small primes)
  function randProbPrimeRounds(k,n) {
    var ans, i, divisible, B; 
    B=30000;  //B is largest prime to use in trial division
    ans=int2bigInt(0,k,0);
    
    //optimization: try larger and smaller B to find the best limit.
    
    if (primes.length==0)
      primes=findPrimes(30000);  //check for divisibility by primes <=30000

    if (rpprb.length!=ans.length)
      rpprb=dup(ans);

    for (;;) { //keep trying random values for ans until one appears to be prime
      //optimization: pick a random number times L=2*3*5*...*p, plus a 
      //   random element of the list of all numbers in [0,L) not divisible by any prime up to p.
      //   This can reduce the amount of random number generation.
      
      randBigInt_(ans,k,0); //ans = a random odd number to check
      ans[0] |= 1; 
      divisible=0;
    
      //check ans for divisibility by small primes up to B
      for (i=0; (i<primes.length) && (primes[i]<=B); i++)
        if (modInt(ans,primes[i])==0 && !equalsInt(ans,primes[i])) {
          divisible=1;
          break;
        }      
      
      //optimization: change millerRabin so the base can be bigger than the number being checked, then eliminate the while here.
      
      //do n rounds of Miller Rabin, with random bases less than ans
      for (i=0; i<n && !divisible; i++) {
        randBigInt_(rpprb,k,0);
        while(!greater(ans,rpprb)) //pick a random rpprb that's < ans
          randBigInt_(rpprb,k,0);
        if (!millerRabin(ans,rpprb))
          divisible=1;
      }
      
      if(!divisible)
        return ans;
    }  
  }

  //return a new bigInt equal to (x mod n) for bigInts x and n.
  function mod(x,n) {
    var ans=dup(x);
    mod_(ans,n);
    return trim(ans,1);
  }

  //return (x+n) where x is a bigInt and n is an integer.
  function addInt(x,n) {
    var ans=expand(x,x.length+1);
    addInt_(ans,n);
    return trim(ans,1);
  }

  //return x*y for bigInts x and y. This is faster when y<x.
  function mult(x,y) {
    var ans=expand(x,x.length+y.length);
    mult_(ans,y);
    return trim(ans,1);
  }

  //return (x**y mod n) where x,y,n are bigInts and ** is exponentiation.  0**0=1. Faster for odd n.
  function powMod(x,y,n) {
    var ans=expand(x,n.length);  
    powMod_(ans,trim(y,2),trim(n,2),0);  //this should work without the trim, but doesn't
    return trim(ans,1);
  }

  //return (x-y) for bigInts x and y.  Negative answers will be 2s complement
  function sub(x,y) {
    var ans=expand(x,(x.length>y.length ? x.length+1 : y.length+1)); 
    sub_(ans,y);
    return trim(ans,1);
  }

  //return (x+y) for bigInts x and y.  
  function add(x,y) {
    var ans=expand(x,(x.length>y.length ? x.length+1 : y.length+1)); 
    add_(ans,y);
    return trim(ans,1);
  }

  //return (x**(-1) mod n) for bigInts x and n.  If no inverse exists, it returns null
  function inverseMod(x,n) {
    var ans=expand(x,n.length); 
    var s;
    s=inverseMod_(ans,n);
    return s ? trim(ans,1) : null;
  }

  //return (x*y mod n) for bigInts x,y,n.  For greater speed, let y<x.
  function multMod(x,y,n) {
    var ans=expand(x,n.length);
    multMod_(ans,y,n);
    return trim(ans,1);
  }

  //generate a k-bit true random prime using Maurer's algorithm,
  //and put it into ans.  The bigInt ans must be large enough to hold it.
  function randTruePrime_(ans,k) {
    var c,w,m,pm,dd,j,r,B,divisible,z,zz,recSize,recLimit;

    if (primes.length==0)
      primes=findPrimes(30000);  //check for divisibility by primes <=30000

    if (pows.length==0) {
      pows=new Array(512);
      for (j=0;j<512;j++) {
        pows[j]=Math.pow(2,j/511.0-1.0);
      }
    }

    //c and m should be tuned for a particular machine and value of k, to maximize speed
    c=0.1;  //c=0.1 in HAC
    m=20;   //generate this k-bit number by first recursively generating a number that has between k/2 and k-m bits
    recLimit=20; //stop recursion when k <=recLimit.  Must have recLimit >= 2

    if (s_i2.length!=ans.length) {
      s_i2=dup(ans);
      s_R =dup(ans);
      s_n1=dup(ans);
      s_r2=dup(ans);
      s_d =dup(ans);
      s_x1=dup(ans);
      s_x2=dup(ans);
      s_b =dup(ans);
      s_n =dup(ans);
      s_i =dup(ans);
      s_rm=dup(ans);
      s_q =dup(ans);
      s_a =dup(ans);
      s_aa=dup(ans);
    }

    if (k <= recLimit) {  //generate small random primes by trial division up to its square root
      pm=(1<<((k+2)>>1))-1; //pm is binary number with all ones, just over sqrt(2^k)
      copyInt_(ans,0);
      for (dd=1;dd;) {
        dd=0;
        ans[0]= 1 | (1<<(k-1)) | randomBitInt(k);  //random, k-bit, odd integer, with msb 1
        for (j=1;(j<primes.length) && ((primes[j]&pm)==primes[j]);j++) { //trial division by all primes 3...sqrt(2^k)
          if (0==(ans[0]%primes[j])) {
            dd=1;
            break;
          }
        }
      }
      carry_(ans);
      return;
    }

    B=c*k*k;    //try small primes up to B (or all the primes[] array if the largest is less than B).
    if (k>2*m)  //generate this k-bit number by first recursively generating a number that has between k/2 and k-m bits
      for (r=1; k-k*r<=m; )
        r=pows[randomBitInt(9)];   //r=Math.pow(2,Math.random()-1);
    else
      r=0.5;

    //simulation suggests the more complex algorithm using r=.333 is only slightly faster.

    recSize=Math.floor(r*k)+1;

    randTruePrime_(s_q,recSize);
    copyInt_(s_i2,0);
    s_i2[Math.floor((k-2)/bpe)] |= (1<<((k-2)%bpe));   //s_i2=2^(k-2)
    divide_(s_i2,s_q,s_i,s_rm);                        //s_i=floor((2^(k-1))/(2q))

    z=bitSize(s_i);

    for (;;) {
      for (;;) {  //generate z-bit numbers until one falls in the range [0,s_i-1]
        randBigInt_(s_R,z,0);
        if (greater(s_i,s_R))
          break;
      }                //now s_R is in the range [0,s_i-1]
      addInt_(s_R,1);  //now s_R is in the range [1,s_i]
      add_(s_R,s_i);   //now s_R is in the range [s_i+1,2*s_i]

      copy_(s_n,s_q);
      mult_(s_n,s_R); 
      multInt_(s_n,2);
      addInt_(s_n,1);    //s_n=2*s_R*s_q+1
      
      copy_(s_r2,s_R);
      multInt_(s_r2,2);  //s_r2=2*s_R

      //check s_n for divisibility by small primes up to B
      for (divisible=0,j=0; (j<primes.length) && (primes[j]<B); j++)
        if (modInt(s_n,primes[j])==0 && !equalsInt(s_n,primes[j])) {
          divisible=1;
          break;
        }      

      if (!divisible)    //if it passes small primes check, then try a single Miller-Rabin base 2
        if (!millerRabinInt(s_n,2)) //this line represents 75% of the total runtime for randTruePrime_ 
          divisible=1;

      if (!divisible) {  //if it passes that test, continue checking s_n
        addInt_(s_n,-3);
        for (j=s_n.length-1;(s_n[j]==0) && (j>0); j--);  //strip leading zeros
        for (zz=0,w=s_n[j]; w; (w>>=1),zz++);
        zz+=bpe*j;                             //zz=number of bits in s_n, ignoring leading zeros
        for (;;) {  //generate z-bit numbers until one falls in the range [0,s_n-1]
          randBigInt_(s_a,zz,0);
          if (greater(s_n,s_a))
            break;
        }                //now s_a is in the range [0,s_n-1]
        addInt_(s_n,3);  //now s_a is in the range [0,s_n-4]
        addInt_(s_a,2);  //now s_a is in the range [2,s_n-2]
        copy_(s_b,s_a);
        copy_(s_n1,s_n);
        addInt_(s_n1,-1);
        powMod_(s_b,s_n1,s_n);   //s_b=s_a^(s_n-1) modulo s_n
        addInt_(s_b,-1);
        if (isZero(s_b)) {
          copy_(s_b,s_a);
          powMod_(s_b,s_r2,s_n);
          addInt_(s_b,-1);
          copy_(s_aa,s_n);
          copy_(s_d,s_b);
          GCD_(s_d,s_n);  //if s_b and s_n are relatively prime, then s_n is a prime
          if (equalsInt(s_d,1)) {
            copy_(ans,s_aa);
            return;     //if we've made it this far, then s_n is absolutely guaranteed to be prime
          }
        }
      }
    }
  }

  //Return an n-bit random BigInt (n>=1).  If s=1, then the most significant of those n bits is set to 1.
  function randBigInt(n,s) {
    var a,b;
    a=Math.floor((n-1)/bpe)+2; //# array elements to hold the BigInt with a leading 0 element
    b=int2bigInt(0,0,a);
    randBigInt_(b,n,s);
    return b;
  }

  //Set b to an n-bit random BigInt.  If s=1, then the most significant of those n bits is set to 1.
  //Array b must be big enough to hold the result. Must have n>=1
  function randBigInt_(b,n,s) {
    var i,a;
    for (i=0;i<b.length;i++)
      b[i]=0;
    a=Math.floor((n-1)/bpe)+1; //# array elements to hold the BigInt
    for (i=0;i<a;i++) {
      b[i]=randomBitInt(bpe);
    }
    b[a-1] &= (2<<((n-1)%bpe))-1;
    if (s==1)
      b[a-1] |= (1<<((n-1)%bpe));
  }

  //Return the greatest common divisor of bigInts x and y (each with same number of elements).
  function GCD(x,y) {
    var xc,yc;
    xc=dup(x);
    yc=dup(y);
    GCD_(xc,yc);
    return xc;
  }

  //set x to the greatest common divisor of bigInts x and y (each with same number of elements).
  //y is destroyed.
  function GCD_(x,y) {
    var i,xp,yp,A,B,C,D,q,sing,qp;
    if (T.length!=x.length)
      T=dup(x);

    sing=1;
    while (sing) { //while y has nonzero elements other than y[0]
      sing=0;
      for (i=1;i<y.length;i++) //check if y has nonzero elements other than 0
        if (y[i]) {
          sing=1;
          break;
        }
      if (!sing) break; //quit when y all zero elements except possibly y[0]

      for (i=x.length;!x[i] && i>=0;i--);  //find most significant element of x
      xp=x[i];
      yp=y[i];
      A=1; B=0; C=0; D=1;
      while ((yp+C) && (yp+D)) {
        q =Math.floor((xp+A)/(yp+C));
        qp=Math.floor((xp+B)/(yp+D));
        if (q!=qp)
          break;
        t= A-q*C;   A=C;   C=t;    //  do (A,B,xp, C,D,yp) = (C,D,yp, A,B,xp) - q*(0,0,0, C,D,yp)      
        t= B-q*D;   B=D;   D=t;
        t=xp-q*yp; xp=yp; yp=t;
      }
      if (B) {
        copy_(T,x);
        linComb_(x,y,A,B); //x=A*x+B*y
        linComb_(y,T,D,C); //y=D*y+C*T
      } else {
        mod_(x,y);
        copy_(T,x);
        copy_(x,y);
        copy_(y,T);
      } 
    }
    if (y[0]==0)
      return;
    t=modInt(x,y[0]);
    copyInt_(x,y[0]);
    y[0]=t;
    while (y[0]) {
      x[0]%=y[0];
      t=x[0]; x[0]=y[0]; y[0]=t;
    }
  }

  //do x=x**(-1) mod n, for bigInts x and n.
  //If no inverse exists, it sets x to zero and returns 0, else it returns 1.
  //The x array must be at least as large as the n array.
  function inverseMod_(x,n) {
    var k=1+2*Math.max(x.length,n.length);

    if(!(x[0]&1)  && !(n[0]&1)) {  //if both inputs are even, then inverse doesn't exist
      copyInt_(x,0);
      return 0;
    }

    if (eg_u.length!=k) {
      eg_u=new Array(k);
      eg_v=new Array(k);
      eg_A=new Array(k);
      eg_B=new Array(k);
      eg_C=new Array(k);
      eg_D=new Array(k);
    }

    copy_(eg_u,x);
    copy_(eg_v,n);
    copyInt_(eg_A,1);
    copyInt_(eg_B,0);
    copyInt_(eg_C,0);
    copyInt_(eg_D,1);
    for (;;) {
      while(!(eg_u[0]&1)) {  //while eg_u is even
        halve_(eg_u);
        if (!(eg_A[0]&1) && !(eg_B[0]&1)) { //if eg_A==eg_B==0 mod 2
          halve_(eg_A);
          halve_(eg_B);      
        } else {
          add_(eg_A,n);  halve_(eg_A);
          sub_(eg_B,x);  halve_(eg_B);
        }
      }

      while (!(eg_v[0]&1)) {  //while eg_v is even
        halve_(eg_v);
        if (!(eg_C[0]&1) && !(eg_D[0]&1)) { //if eg_C==eg_D==0 mod 2
          halve_(eg_C);
          halve_(eg_D);      
        } else {
          add_(eg_C,n);  halve_(eg_C);
          sub_(eg_D,x);  halve_(eg_D);
        }
      }

      if (!greater(eg_v,eg_u)) { //eg_v <= eg_u
        sub_(eg_u,eg_v);
        sub_(eg_A,eg_C);
        sub_(eg_B,eg_D);
      } else {                   //eg_v > eg_u
        sub_(eg_v,eg_u);
        sub_(eg_C,eg_A);
        sub_(eg_D,eg_B);
      }

      if (equalsInt(eg_u,0)) {
        while (negative(eg_C)) //make sure answer is nonnegative
          add_(eg_C,n);
        copy_(x,eg_C);

        if (!equalsInt(eg_v,1)) { //if GCD_(x,n)!=1, then there is no inverse
          copyInt_(x,0);
          return 0;
        }
        return 1;
      }
    }
  }

  //return x**(-1) mod n, for integers x and n.  Return 0 if there is no inverse
  function inverseModInt(x,n) {
    var a=1,b=0,t;
    for (;;) {
      if (x==1) return a;
      if (x==0) return 0;
      b-=a*Math.floor(n/x);
      n%=x;

      if (n==1) return b; //to avoid negatives, change this b to n-b, and each -= to +=
      if (n==0) return 0;
      a-=b*Math.floor(x/n);
      x%=n;
    }
  }

  //this deprecated function is for backward compatibility only. 
  function inverseModInt_(x,n) {
     return inverseModInt(x,n);
  }


  //Given positive bigInts x and y, change the bigints v, a, and b to positive bigInts such that:
  //     v = GCD_(x,y) = a*x-b*y
  //The bigInts v, a, b, must have exactly as many elements as the larger of x and y.
  function eGCD_(x,y,v,a,b) {
    var g=0;
    var k=Math.max(x.length,y.length);
    if (eg_u.length!=k) {
      eg_u=new Array(k);
      eg_A=new Array(k);
      eg_B=new Array(k);
      eg_C=new Array(k);
      eg_D=new Array(k);
    }
    while(!(x[0]&1)  && !(y[0]&1)) {  //while x and y both even
      halve_(x);
      halve_(y);
      g++;
    }
    copy_(eg_u,x);
    copy_(v,y);
    copyInt_(eg_A,1);
    copyInt_(eg_B,0);
    copyInt_(eg_C,0);
    copyInt_(eg_D,1);
    for (;;) {
      while(!(eg_u[0]&1)) {  //while u is even
        halve_(eg_u);
        if (!(eg_A[0]&1) && !(eg_B[0]&1)) { //if A==B==0 mod 2
          halve_(eg_A);
          halve_(eg_B);      
        } else {
          add_(eg_A,y);  halve_(eg_A);
          sub_(eg_B,x);  halve_(eg_B);
        }
      }

      while (!(v[0]&1)) {  //while v is even
        halve_(v);
        if (!(eg_C[0]&1) && !(eg_D[0]&1)) { //if C==D==0 mod 2
          halve_(eg_C);
          halve_(eg_D);      
        } else {
          add_(eg_C,y);  halve_(eg_C);
          sub_(eg_D,x);  halve_(eg_D);
        }
      }

      if (!greater(v,eg_u)) { //v<=u
        sub_(eg_u,v);
        sub_(eg_A,eg_C);
        sub_(eg_B,eg_D);
      } else {                //v>u
        sub_(v,eg_u);
        sub_(eg_C,eg_A);
        sub_(eg_D,eg_B);
      }
      if (equalsInt(eg_u,0)) {
        while (negative(eg_C)) {   //make sure a (C) is nonnegative
          add_(eg_C,y);
          sub_(eg_D,x);
        }
        multInt_(eg_D,-1);  ///make sure b (D) is nonnegative
        copy_(a,eg_C);
        copy_(b,eg_D);
        leftShift_(v,g);
        return;
      }
    }
  }


  //is bigInt x negative?
  function negative(x) {
    return ((x[x.length-1]>>(bpe-1))&1);
  }


  //is (x << (shift*bpe)) > y?
  //x and y are nonnegative bigInts
  //shift is a nonnegative integer
  function greaterShift(x,y,shift) {
    var i, kx=x.length, ky=y.length;
    var k=((kx+shift)<ky) ? (kx+shift) : ky;
    for (i=ky-1-shift; i<kx && i>=0; i++) 
      if (x[i]>0)
        return 1; //if there are nonzeros in x to the left of the first column of y, then x is bigger
    for (i=kx-1+shift; i<ky; i++)
      if (y[i]>0)
        return 0; //if there are nonzeros in y to the left of the first column of x, then x is not bigger
    for (i=k-1; i>=shift; i--)
      if      (x[i-shift]>y[i]) return 1;
      else if (x[i-shift]<y[i]) return 0;
    return 0;
  }

  //is x > y? (x and y both nonnegative)
  function greater(x,y) {
    var i;
    var k=(x.length<y.length) ? x.length : y.length;

    for (i=x.length;i<y.length;i++)
      if (y[i])
        return 0;  //y has more digits

    for (i=y.length;i<x.length;i++)
      if (x[i])
        return 1;  //x has more digits

    for (i=k-1;i>=0;i--)
      if (x[i]>y[i])
        return 1;
      else if (x[i]<y[i])
        return 0;
    return 0;
  }

  //divide x by y giving quotient q and remainder r.  (q=floor(x/y),  r=x mod y).  All 4 are bigints.
  //x must have at least one leading zero element.
  //y must be nonzero.
  //q and r must be arrays that are exactly the same length as x. (Or q can have more).
  //Must have x.length >= y.length >= 2.
  function divide_(x,y,q,r) {
    var kx, ky;
    var i,j,y1,y2,c,a,b;
    copy_(r,x);
    for (ky=y.length;y[ky-1]==0;ky--); //ky is number of elements in y, not including leading zeros

    //normalize: ensure the most significant element of y has its highest bit set  
    b=y[ky-1];
    for (a=0; b; a++)
      b>>=1;  
    a=bpe-a;  //a is how many bits to shift so that the high order bit of y is leftmost in its array element
    leftShift_(y,a);  //multiply both by 1<<a now, then divide both by that at the end
    leftShift_(r,a);

    //Rob Visser discovered a bug: the following line was originally just before the normalization.
    for (kx=r.length;r[kx-1]==0 && kx>ky;kx--); //kx is number of elements in normalized x, not including leading zeros

    copyInt_(q,0);                      // q=0
    while (!greaterShift(y,r,kx-ky)) {  // while (leftShift_(y,kx-ky) <= r) {
      subShift_(r,y,kx-ky);             //   r=r-leftShift_(y,kx-ky)
      q[kx-ky]++;                       //   q[kx-ky]++;
    }                                   // }

    for (i=kx-1; i>=ky; i--) {
      if (r[i]==y[ky-1])
        q[i-ky]=mask;
      else
        q[i-ky]=Math.floor((r[i]*radix+r[i-1])/y[ky-1]);

      //The following for(;;) loop is equivalent to the commented while loop, 
      //except that the uncommented version avoids overflow.
      //The commented loop comes from HAC, which assumes r[-1]==y[-1]==0
      //  while (q[i-ky]*(y[ky-1]*radix+y[ky-2]) > r[i]*radix*radix+r[i-1]*radix+r[i-2])
      //    q[i-ky]--;    
      for (;;) {
        y2=(ky>1 ? y[ky-2] : 0)*q[i-ky];
        c=y2;
        y2=y2 & mask;
        c = (c - y2) / radix;
        y1=c+q[i-ky]*y[ky-1];
        c=y1;
        y1=y1 & mask;
        c = (c - y1) / radix;

        if (c==r[i] ? y1==r[i-1] ? y2>(i>1 ? r[i-2] : 0) : y1>r[i-1] : c>r[i]) 
          q[i-ky]--;
        else
          break;
      }

      linCombShift_(r,y,-q[i-ky],i-ky);    //r=r-q[i-ky]*leftShift_(y,i-ky)
      if (negative(r)) {
        addShift_(r,y,i-ky);         //r=r+leftShift_(y,i-ky)
        q[i-ky]--;
      }
    }

    rightShift_(y,a);  //undo the normalization step
    rightShift_(r,a);  //undo the normalization step
  }

  //do carries and borrows so each element of the bigInt x fits in bpe bits.
  function carry_(x) {
    var i,k,c,b;
    k=x.length;
    c=0;
    for (i=0;i<k;i++) {
      c+=x[i];
      b=0;
      if (c<0) {
        b = c & mask;
        b = -((c - b) / radix);
        c+=b*radix;
      }
      x[i]=c & mask;
      c = ((c - x[i]) / radix) - b;
    }
  }

  //return x mod n for bigInt x and integer n.
  function modInt(x,n) {
    var i,c=0;
    for (i=x.length-1; i>=0; i--)
      c=(c*radix+x[i])%n;
    return c;
  }

  //convert the integer t into a bigInt with at least the given number of bits.
  //the returned array stores the bigInt in bpe-bit chunks, little endian (buff[0] is least significant word)
  //Pad the array with leading zeros so that it has at least minSize elements.
  //There will always be at least one leading 0 element.
  function int2bigInt(t,bits,minSize) {   
    var i,k, buff;
    k=Math.ceil(bits/bpe)+1;
    k=minSize>k ? minSize : k;
    buff=new Array(k);
    copyInt_(buff,t);
    return buff;
  }

  //return the bigInt given a string representation in a given base.  
  //Pad the array with leading zeros so that it has at least minSize elements.
  //If base=-1, then it reads in a space-separated list of array elements in decimal.
  //The array will always have at least one leading zero, unless base=-1.
  function str2bigInt(s,base,minSize) {
    var d, i, j, x, y, kk;
    var k=s.length;
    if (base==-1) { //comma-separated list of array elements in decimal
      x=new Array(0);
      for (;;) {
        y=new Array(x.length+1);
        for (i=0;i<x.length;i++)
          y[i+1]=x[i];
        y[0]=parseInt(s,10);
        x=y;
        d=s.indexOf(',',0);
        if (d<1) 
          break;
        s=s.substring(d+1);
        if (s.length==0)
          break;
      }
      if (x.length<minSize) {
        y=new Array(minSize);
        copy_(y,x);
        return y;
      }
      return x;
    }

    // log2(base)*k
    var bb = base, p = 0;
    var b = base == 1 ? k : 0;
    while (bb > 1) {
      if (bb & 1) p = 1;
      b += k;
      bb >>= 1;
    }
    b += p*k;

    x=int2bigInt(0,b,0);
    for (i=0;i<k;i++) {
      d=digitsStr.indexOf(s.substring(i,i+1),0);
      if (base<=36 && d>=36)  //convert lowercase to uppercase if base<=36
        d-=26;
      if (d>=base || d<0) {   //stop at first illegal character
        break;
      }
      multInt_(x,base);
      addInt_(x,d);
    }

    for (k=x.length;k>0 && !x[k-1];k--); //strip off leading zeros
    k=minSize>k+1 ? minSize : k+1;
    y=new Array(k);
    kk=k<x.length ? k : x.length;
    for (i=0;i<kk;i++)
      y[i]=x[i];
    for (;i<k;i++)
      y[i]=0;
    return y;
  }

  //is bigint x equal to integer y?
  //y must have less than bpe bits
  function equalsInt(x,y) {
    var i;
    if (x[0]!=y)
      return 0;
    for (i=1;i<x.length;i++)
      if (x[i])
        return 0;
    return 1;
  }

  //are bigints x and y equal?
  //this works even if x and y are different lengths and have arbitrarily many leading zeros
  function equals(x,y) {
    var i;
    var k=x.length<y.length ? x.length : y.length;
    for (i=0;i<k;i++)
      if (x[i]!=y[i])
        return 0;
    if (x.length>y.length) {
      for (;i<x.length;i++)
        if (x[i])
          return 0;
    } else {
      for (;i<y.length;i++)
        if (y[i])
          return 0;
    }
    return 1;
  }

  //is the bigInt x equal to zero?
  function isZero(x) {
    var i;
    for (i=0;i<x.length;i++)
      if (x[i])
        return 0;
    return 1;
  }

  //convert a bigInt into a string in a given base, from base 2 up to base 95.
  //Base -1 prints the contents of the array representing the number.
  function bigInt2str(x,base) {
    var i,t,s="";

    if (s6.length!=x.length) 
      s6=dup(x);
    else
      copy_(s6,x);

    if (base==-1) { //return the list of array contents
      for (i=x.length-1;i>0;i--)
        s+=x[i]+',';
      s+=x[0];
    }
    else { //return it in the given base
      while (!isZero(s6)) {
        t=divInt_(s6,base);  //t=s6 % base; s6=floor(s6/base);
        s=digitsStr.substring(t,t+1)+s;
      }
    }
    if (s.length==0)
      s="0";
    return s;
  }

  //returns a duplicate of bigInt x
  function dup(x) {
    var i, buff;
    buff=new Array(x.length);
    copy_(buff,x);
    return buff;
  }

  //do x=y on bigInts x and y.  x must be an array at least as big as y (not counting the leading zeros in y).
  function copy_(x,y) {
    var i;
    var k=x.length<y.length ? x.length : y.length;
    for (i=0;i<k;i++)
      x[i]=y[i];
    for (i=k;i<x.length;i++)
      x[i]=0;
  }

  //do x=y on bigInt x and integer y.  
  function copyInt_(x,n) {
    var i,c;
    for (c=n,i=0;i<x.length;i++) {
      x[i]=c & mask;
      c>>=bpe;
    }
  }

  //do x=x+n where x is a bigInt and n is an integer.
  //x must be large enough to hold the result.
  function addInt_(x,n) {
    var i,k,c,b;
    x[0]+=n;
    k=x.length;
    c=0;
    for (i=0;i<k;i++) {
      c+=x[i];
      b=0;
      if (c<0) {
        b = c & mask;
        b = -((c - b) / radix);
        c+=b*radix;
      }
      x[i]=c & mask;
      c = ((c - x[i]) / radix) - b;
      if (!c) return; //stop carrying as soon as the carry is zero
    }
  }

  //right shift bigInt x by n bits.
  function rightShift_(x,n) {
    var i;
    var k=Math.floor(n/bpe);
    if (k) {
      for (i=0;i<x.length-k;i++) //right shift x by k elements
        x[i]=x[i+k];
      for (;i<x.length;i++)
        x[i]=0;
      n%=bpe;
    }
    for (i=0;i<x.length-1;i++) {
      x[i]=mask & ((x[i+1]<<(bpe-n)) | (x[i]>>n));
    }
    x[i]>>=n;
  }

  //do x=floor(|x|/2)*sgn(x) for bigInt x in 2's complement
  function halve_(x) {
    var i;
    for (i=0;i<x.length-1;i++) {
      x[i]=mask & ((x[i+1]<<(bpe-1)) | (x[i]>>1));
    }
    x[i]=(x[i]>>1) | (x[i] & (radix>>1));  //most significant bit stays the same
  }

  //left shift bigInt x by n bits.
  function leftShift_(x,n) {
    var i;
    var k=Math.floor(n/bpe);
    if (k) {
      for (i=x.length; i>=k; i--) //left shift x by k elements
        x[i]=x[i-k];
      for (;i>=0;i--)
        x[i]=0;  
      n%=bpe;
    }
    if (!n)
      return;
    for (i=x.length-1;i>0;i--) {
      x[i]=mask & ((x[i]<<n) | (x[i-1]>>(bpe-n)));
    }
    x[i]=mask & (x[i]<<n);
  }

  //do x=x*n where x is a bigInt and n is an integer.
  //x must be large enough to hold the result.
  function multInt_(x,n) {
    var i,k,c,b;
    if (!n)
      return;
    k=x.length;
    c=0;
    for (i=0;i<k;i++) {
      c+=x[i]*n;
      b=0;
      if (c<0) {
        b = c & mask;
        b = -((c - b) / radix);
        c+=b*radix;
      }
      x[i]=c & mask;
      c = ((c - x[i]) / radix) - b;
    }
  }

  //do x=floor(x/n) for bigInt x and integer n, and return the remainder
  function divInt_(x,n) {
    var i,r=0,s;
    for (i=x.length-1;i>=0;i--) {
      s=r*radix+x[i];
      x[i]=Math.floor(s/n);
      r=s%n;
    }
    return r;
  }

  //do the linear combination x=a*x+b*y for bigInts x and y, and integers a and b.
  //x must be large enough to hold the answer.
  function linComb_(x,y,a,b) {
    var i,c,k,kk;
    k=x.length<y.length ? x.length : y.length;
    kk=x.length;
    for (c=0,i=0;i<k;i++) {
      c+=a*x[i]+b*y[i];
      x[i]=c & mask;
      c = (c - x[i]) / radix;
    }
    for (i=k;i<kk;i++) {
      c+=a*x[i];
      x[i]=c & mask;
      c = (c - x[i]) / radix;
    }
  }

  //do the linear combination x=a*x+b*(y<<(ys*bpe)) for bigInts x and y, and integers a, b and ys.
  //x must be large enough to hold the answer.
  function linCombShift_(x,y,b,ys) {
    var i,c,k,kk;
    k=x.length<ys+y.length ? x.length : ys+y.length;
    kk=x.length;
    for (c=0,i=ys;i<k;i++) {
      c+=x[i]+b*y[i-ys];
      x[i]=c & mask;
      c = (c - x[i]) / radix;
    }
    for (i=k;c && i<kk;i++) {
      c+=x[i];
      x[i]=c & mask;
      c = (c - x[i]) / radix;
    }
  }

  //do x=x+(y<<(ys*bpe)) for bigInts x and y, and integers a,b and ys.
  //x must be large enough to hold the answer.
  function addShift_(x,y,ys) {
    var i,c,k,kk;
    k=x.length<ys+y.length ? x.length : ys+y.length;
    kk=x.length;
    for (c=0,i=ys;i<k;i++) {
      c+=x[i]+y[i-ys];
      x[i]=c & mask;
      c = (c - x[i]) / radix;
    }
    for (i=k;c && i<kk;i++) {
      c+=x[i];
      x[i]=c & mask;
      c = (c - x[i]) / radix;
    }
  }

  //do x=x-(y<<(ys*bpe)) for bigInts x and y, and integers a,b and ys.
  //x must be large enough to hold the answer.
  function subShift_(x,y,ys) {
    var i,c,k,kk;
    k=x.length<ys+y.length ? x.length : ys+y.length;
    kk=x.length;
    for (c=0,i=ys;i<k;i++) {
      c+=x[i]-y[i-ys];
      x[i]=c & mask;
      c = (c - x[i]) / radix;
    }
    for (i=k;c && i<kk;i++) {
      c+=x[i];
      x[i]=c & mask;
      c = (c - x[i]) / radix;
    }
  }

  //do x=x-y for bigInts x and y.
  //x must be large enough to hold the answer.
  //negative answers will be 2s complement
  function sub_(x,y) {
    var i,c,k,kk;
    k=x.length<y.length ? x.length : y.length;
    for (c=0,i=0;i<k;i++) {
      c+=x[i]-y[i];
      x[i]=c & mask;
      c = (c - x[i]) / radix;
    }
    for (i=k;c && i<x.length;i++) {
      c+=x[i];
      x[i]=c & mask;
      c = (c - x[i]) / radix;
    }
  }

  //do x=x+y for bigInts x and y.
  //x must be large enough to hold the answer.
  function add_(x,y) {
    var i,c,k,kk;
    k=x.length<y.length ? x.length : y.length;
    for (c=0,i=0;i<k;i++) {
      c+=x[i]+y[i];
      x[i]=c & mask;
      c = (c - x[i]) / radix;
    }
    for (i=k;c && i<x.length;i++) {
      c+=x[i];
      x[i]=c & mask;
      c = (c - x[i]) / radix;
    }
  }

  //do x=x*y for bigInts x and y.  This is faster when y<x.
  function mult_(x,y) {
    var i;
    if (ss.length!=2*x.length)
      ss=new Array(2*x.length);
    copyInt_(ss,0);
    for (i=0;i<y.length;i++)
      if (y[i])
        linCombShift_(ss,x,y[i],i);   //ss=1*ss+y[i]*(x<<(i*bpe))
    copy_(x,ss);
  }

  //do x=x mod n for bigInts x and n.
  function mod_(x,n) {
    if (s4.length!=x.length)
      s4=dup(x);
    else
      copy_(s4,x);
    if (s5.length!=x.length)
      s5=dup(x);  
    divide_(s4,n,s5,x);  //x = remainder of s4 / n
  }

  //do x=x*y mod n for bigInts x,y,n.
  //for greater speed, let y<x.
  function multMod_(x,y,n) {
    var i;
    if (s0.length!=2*x.length)
      s0=new Array(2*x.length);
    copyInt_(s0,0);
    for (i=0;i<y.length;i++)
      if (y[i])
        linCombShift_(s0,x,y[i],i);   //s0=1*s0+y[i]*(x<<(i*bpe))
    mod_(s0,n);
    copy_(x,s0);
  }

  //do x=x*x mod n for bigInts x,n.
  function squareMod_(x,n) {
    var i,j,d,c,kx,kn,k;
    for (kx=x.length; kx>0 && !x[kx-1]; kx--);  //ignore leading zeros in x
    k=kx>n.length ? 2*kx : 2*n.length; //k=# elements in the product, which is twice the elements in the larger of x and n
    if (s0.length!=k) 
      s0=new Array(k);
    copyInt_(s0,0);
    for (i=0;i<kx;i++) {
      c=s0[2*i]+x[i]*x[i];
      s0[2*i]=c & mask;
      c = (c - s0[2*i]) / radix;
      for (j=i+1;j<kx;j++) {
        c=s0[i+j]+2*x[i]*x[j]+c;
        s0[i+j]=(c & mask);
        c = (c - s0[i+j]) / radix;
      }
      s0[i+kx]=c;
    }
    mod_(s0,n);
    copy_(x,s0);
  }

  //return x with exactly k leading zero elements
  function trim(x,k) {
    var i,y;
    for (i=x.length; i>0 && !x[i-1]; i--);
    y=new Array(i+k);
    copy_(y,x);
    return y;
  }

  //do x=x**y mod n, where x,y,n are bigInts and ** is exponentiation.  0**0=1.
  //this is faster when n is odd.  x usually needs to have as many elements as n.
  function powMod_(x,y,n) {
    var k1,k2,kn,np;
    if(s7.length!=n.length)
      s7=dup(n);

    //for even modulus, use a simple square-and-multiply algorithm,
    //rather than using the more complex Montgomery algorithm.
    if ((n[0]&1)==0) {
      copy_(s7,x);
      copyInt_(x,1);
      while(!equalsInt(y,0)) {
        if (y[0]&1)
          multMod_(x,s7,n);
        divInt_(y,2);
        squareMod_(s7,n); 
      }
      return;
    }

    //calculate np from n for the Montgomery multiplications
    copyInt_(s7,0);
    for (kn=n.length;kn>0 && !n[kn-1];kn--);
    np=radix-inverseModInt(modInt(n,radix),radix);
    s7[kn]=1;
    multMod_(x ,s7,n);   // x = x * 2**(kn*bp) mod n

    if (s3.length!=x.length)
      s3=dup(x);
    else
      copy_(s3,x);

    for (k1=y.length-1;k1>0 & !y[k1]; k1--);  //k1=first nonzero element of y
    if (y[k1]==0) {  //anything to the 0th power is 1
      copyInt_(x,1);
      return;
    }
    for (k2=1<<(bpe-1);k2 && !(y[k1] & k2); k2>>=1);  //k2=position of first 1 bit in y[k1]
    for (;;) {
      if (!(k2>>=1)) {  //look at next bit of y
        k1--;
        if (k1<0) {
          mont_(x,one,n,np);
          return;
        }
        k2=1<<(bpe-1);
      }    
      mont_(x,x,n,np);

      if (k2 & y[k1]) //if next bit is a 1
        mont_(x,s3,n,np);
    }
  }


  //do x=x*y*Ri mod n for bigInts x,y,n, 
  //  where Ri = 2**(-kn*bpe) mod n, and kn is the 
  //  number of elements in the n array, not 
  //  counting leading zeros.  
  //x array must have at least as many elemnts as the n array
  //It's OK if x and y are the same variable.
  //must have:
  //  x,y < n
  //  n is odd
  //  np = -(n^(-1)) mod radix
  function mont_(x,y,n,np) {
    var i,j,c,ui,t,t2,ks;
    var kn=n.length;
    var ky=y.length;

    if (sa.length!=kn)
      sa=new Array(kn);
      
    copyInt_(sa,0);

    for (;kn>0 && n[kn-1]==0;kn--); //ignore leading zeros of n
    for (;ky>0 && y[ky-1]==0;ky--); //ignore leading zeros of y
    ks=sa.length-1; //sa will never have more than this many nonzero elements.  

    //the following loop consumes 95% of the runtime for randTruePrime_() and powMod_() for large numbers
    for (i=0; i<kn; i++) {
      t=sa[0]+x[i]*y[0];
      ui=((t & mask) * np) & mask;  //the inner "& mask" was needed on Safari (but not MSIE) at one time
      c=(t+ui*n[0]);
      c = (c - (c & mask)) / radix;
      t=x[i];
      
      //do sa=(sa+x[i]*y+ui*n)/b   where b=2**bpe.  Loop is unrolled 5-fold for speed
      j=1;
      for (;j<ky-4;) {
        c+=sa[j]+ui*n[j]+t*y[j]; t2=sa[j-1]=c & mask; c=(c-t2)/radix; j++;
        c+=sa[j]+ui*n[j]+t*y[j]; t2=sa[j-1]=c & mask; c=(c-t2)/radix; j++;
        c+=sa[j]+ui*n[j]+t*y[j]; t2=sa[j-1]=c & mask; c=(c-t2)/radix; j++;
        c+=sa[j]+ui*n[j]+t*y[j]; t2=sa[j-1]=c & mask; c=(c-t2)/radix; j++;
        c+=sa[j]+ui*n[j]+t*y[j]; t2=sa[j-1]=c & mask; c=(c-t2)/radix; j++;
      }
      for (;j<ky;)   {
        c+=sa[j]+ui*n[j]+t*y[j]; t2=sa[j-1]=c & mask; c=(c-t2)/radix; j++;
      }
      for (;j<kn-4;) {
        c+=sa[j]+ui*n[j];        t2=sa[j-1]=c & mask; c=(c-t2)/radix; j++;
        c+=sa[j]+ui*n[j];        t2=sa[j-1]=c & mask; c=(c-t2)/radix; j++;
        c+=sa[j]+ui*n[j];        t2=sa[j-1]=c & mask; c=(c-t2)/radix; j++;
        c+=sa[j]+ui*n[j];        t2=sa[j-1]=c & mask; c=(c-t2)/radix; j++;
        c+=sa[j]+ui*n[j];        t2=sa[j-1]=c & mask; c=(c-t2)/radix; j++;
      }
      for (;j<kn;)   {
        c+=sa[j]+ui*n[j];        t2=sa[j-1]=c & mask; c=(c-t2)/radix; j++;
      }
      for (;j<ks;)   {
        c+=sa[j];                t2=sa[j-1]=c & mask; c=(c-t2)/radix; j++;
      }
      sa[j-1]=c & mask;
    }

    if (!greater(n,sa))
      sub_(sa,n);
    copy_(x,sa);
  }


  // otr.js additions


  // computes num / den mod n
  function divMod(num, den, n) {
    return multMod(num, inverseMod(den, n), n)
  }

  // computes one - two mod n
  function subMod(one, two, n) {
    one = mod(one, n)
    two = mod(two, n)
    if (greater(two, one)) one = add(one, n)
    return sub(one, two)
  }

  // computes 2^m as a bigInt
  function twoToThe(m) {
    var b = Math.floor(m / bpe) + 2
    var t = new Array(b)
    for (var i = 0; i < b; i++) t[i] = 0
    t[b - 2] = 1 << (m % bpe)
    return t
  }

  // cache these results for faster lookup
  var _num2bin = (function () {
    var i = 0, _num2bin= {}
    for (; i < 0x100; ++i) {
      _num2bin[i] = String.fromCharCode(i)  // 0 -> "\00"
    }
    return _num2bin
  }())

  // serialize a bigInt to an ascii string
  // padded up to pad length
  function bigInt2bits(bi, pad) {
    pad || (pad = 0)
    bi = dup(bi)
    var ba = ''
    while (!isZero(bi)) {
      ba = _num2bin[bi[0] & 0xff] + ba
      rightShift_(bi, 8)
    }
    while (ba.length < pad) {
      ba = '\x00' + ba
    }
    return ba
  }

  // converts a byte array to a bigInt
  function ba2bigInt(data) {
    var mpi = str2bigInt('0', 10, data.length)
    data.forEach(function (d, i) {
      if (i) leftShift_(mpi, 8)
      mpi[0] |= d
    })
    return mpi
  }

  // returns a function that returns an array of n bytes
  var randomBytes = (function () {

    // in node
    if ( typeof crypto !== 'undefined' &&
      typeof crypto.randomBytes === 'function' ) {
      return function (n) {
        try {
          var buf = crypto.randomBytes(n)
        } catch (e) { throw e }
        return Array.prototype.slice.call(buf, 0)
      }
    }

    // in browser
    else if ( typeof crypto !== 'undefined' &&
      typeof crypto.getRandomValues === 'function' ) {
      return function (n) {
        var buf = new Uint8Array(n)
        crypto.getRandomValues(buf)
        return Array.prototype.slice.call(buf, 0)
      }
    }

    // err
    else {
      console.log('Keys should not be generated without CSPRNG.');
      return;
      // throw new Error('Keys should not be generated without CSPRNG.')
    }

  }())

  // Salsa 20 in webworker needs a 40 byte seed
  function getSeed() {
    return randomBytes(40)
  }

  // returns a single random byte
  function randomByte() {
    return randomBytes(1)[0]
  }

  // returns a k-bit random integer
  function randomBitInt(k) {
    if (k > 31) throw new Error("Too many bits.")
    var i = 0, r = 0
    var b = Math.floor(k / 8)
    var mask = (1 << (k % 8)) - 1
    if (mask) r = randomByte() & mask
    for (; i < b; i++)
      r = (256 * r) + randomByte()
    return r
  }

  return {
      str2bigInt    : str2bigInt
    , bigInt2str    : bigInt2str
    , int2bigInt    : int2bigInt
    , multMod       : multMod
    , powMod        : powMod
    , inverseMod    : inverseMod
    , randBigInt    : randBigInt
    , randBigInt_   : randBigInt_
    , equals        : equals
    , equalsInt     : equalsInt
    , sub           : sub
    , mod           : mod
    , modInt        : modInt
    , mult          : mult
    , divInt_       : divInt_
    , rightShift_   : rightShift_
    , dup           : dup
    , greater       : greater
    , add           : add
    , isZero        : isZero
    , bitSize       : bitSize
    , millerRabin   : millerRabin
    , divide_       : divide_
    , trim          : trim
    , primes        : primes
    , findPrimes    : findPrimes
    , getSeed       : getSeed
    , divMod        : divMod
    , subMod        : subMod
    , twoToThe      : twoToThe
    , bigInt2bits   : bigInt2bits
    , ba2bigInt     : ba2bigInt
  }

}))
;
;(function (root, factory) {

  if (typeof define === "function" && define.amd) {
    define('crypto',factory)
  } else if (typeof module !== 'undefined' && module.exports) {
    module.exports = factory()
  } else {
    root.CryptoJS = factory()
  }

}(this, function () {

/*
CryptoJS v3.1.2
code.google.com/p/crypto-js
(c) 2009-2013 by Jeff Mott. All rights reserved.
code.google.com/p/crypto-js/wiki/License
*/
/**
 * CryptoJS core components.
 */
var CryptoJS = CryptoJS || (function (Math, undefined) {
    /**
     * CryptoJS namespace.
     */
    var C = {};

    /**
     * Library namespace.
     */
    var C_lib = C.lib = {};

    /**
     * Base object for prototypal inheritance.
     */
    var Base = C_lib.Base = (function () {
        function F() {}

        return {
            /**
             * Creates a new object that inherits from this object.
             *
             * @param {Object} overrides Properties to copy into the new object.
             *
             * @return {Object} The new object.
             *
             * @static
             *
             * @example
             *
             *     var MyType = CryptoJS.lib.Base.extend({
             *         field: 'value',
             *
             *         method: function () {
             *         }
             *     });
             */
            extend: function (overrides) {
                // Spawn
                F.prototype = this;
                var subtype = new F();

                // Augment
                if (overrides) {
                    subtype.mixIn(overrides);
                }

                // Create default initializer
                if (!subtype.hasOwnProperty('init')) {
                    subtype.init = function () {
                        subtype.$super.init.apply(this, arguments);
                    };
                }

                // Initializer's prototype is the subtype object
                subtype.init.prototype = subtype;

                // Reference supertype
                subtype.$super = this;

                return subtype;
            },

            /**
             * Extends this object and runs the init method.
             * Arguments to create() will be passed to init().
             *
             * @return {Object} The new object.
             *
             * @static
             *
             * @example
             *
             *     var instance = MyType.create();
             */
            create: function () {
                var instance = this.extend();
                instance.init.apply(instance, arguments);

                return instance;
            },

            /**
             * Initializes a newly created object.
             * Override this method to add some logic when your objects are created.
             *
             * @example
             *
             *     var MyType = CryptoJS.lib.Base.extend({
             *         init: function () {
             *             // ...
             *         }
             *     });
             */
            init: function () {
            },

            /**
             * Copies properties into this object.
             *
             * @param {Object} properties The properties to mix in.
             *
             * @example
             *
             *     MyType.mixIn({
             *         field: 'value'
             *     });
             */
            mixIn: function (properties) {
                for (var propertyName in properties) {
                    if (properties.hasOwnProperty(propertyName)) {
                        this[propertyName] = properties[propertyName];
                    }
                }

                // IE won't copy toString using the loop above
                if (properties.hasOwnProperty('toString')) {
                    this.toString = properties.toString;
                }
            },

            /**
             * Creates a copy of this object.
             *
             * @return {Object} The clone.
             *
             * @example
             *
             *     var clone = instance.clone();
             */
            clone: function () {
                return this.init.prototype.extend(this);
            }
        };
    }());

    /**
     * An array of 32-bit words.
     *
     * @property {Array} words The array of 32-bit words.
     * @property {number} sigBytes The number of significant bytes in this word array.
     */
    var WordArray = C_lib.WordArray = Base.extend({
        /**
         * Initializes a newly created word array.
         *
         * @param {Array} words (Optional) An array of 32-bit words.
         * @param {number} sigBytes (Optional) The number of significant bytes in the words.
         *
         * @example
         *
         *     var wordArray = CryptoJS.lib.WordArray.create();
         *     var wordArray = CryptoJS.lib.WordArray.create([0x00010203, 0x04050607]);
         *     var wordArray = CryptoJS.lib.WordArray.create([0x00010203, 0x04050607], 6);
         */
        init: function (words, sigBytes) {
            words = this.words = words || [];

            if (sigBytes != undefined) {
                this.sigBytes = sigBytes;
            } else {
                this.sigBytes = words.length * 4;
            }
        },

        /**
         * Converts this word array to a string.
         *
         * @param {Encoder} encoder (Optional) The encoding strategy to use. Default: CryptoJS.enc.Hex
         *
         * @return {string} The stringified word array.
         *
         * @example
         *
         *     var string = wordArray + '';
         *     var string = wordArray.toString();
         *     var string = wordArray.toString(CryptoJS.enc.Utf8);
         */
        toString: function (encoder) {
            return (encoder || Hex).stringify(this);
        },

        /**
         * Concatenates a word array to this word array.
         *
         * @param {WordArray} wordArray The word array to append.
         *
         * @return {WordArray} This word array.
         *
         * @example
         *
         *     wordArray1.concat(wordArray2);
         */
        concat: function (wordArray) {
            // Shortcuts
            var thisWords = this.words;
            var thatWords = wordArray.words;
            var thisSigBytes = this.sigBytes;
            var thatSigBytes = wordArray.sigBytes;

            // Clamp excess bits
            this.clamp();

            // Concat
            if (thisSigBytes % 4) {
                // Copy one byte at a time
                for (var i = 0; i < thatSigBytes; i++) {
                    var thatByte = (thatWords[i >>> 2] >>> (24 - (i % 4) * 8)) & 0xff;
                    thisWords[(thisSigBytes + i) >>> 2] |= thatByte << (24 - ((thisSigBytes + i) % 4) * 8);
                }
            } else if (thatWords.length > 0xffff) {
                // Copy one word at a time
                for (var i = 0; i < thatSigBytes; i += 4) {
                    thisWords[(thisSigBytes + i) >>> 2] = thatWords[i >>> 2];
                }
            } else {
                // Copy all words at once
                thisWords.push.apply(thisWords, thatWords);
            }
            this.sigBytes += thatSigBytes;

            // Chainable
            return this;
        },

        /**
         * Removes insignificant bits.
         *
         * @example
         *
         *     wordArray.clamp();
         */
        clamp: function () {
            // Shortcuts
            var words = this.words;
            var sigBytes = this.sigBytes;

            // Clamp
            words[sigBytes >>> 2] &= 0xffffffff << (32 - (sigBytes % 4) * 8);
            words.length = Math.ceil(sigBytes / 4);
        },

        /**
         * Creates a copy of this word array.
         *
         * @return {WordArray} The clone.
         *
         * @example
         *
         *     var clone = wordArray.clone();
         */
        clone: function () {
            var clone = Base.clone.call(this);
            clone.words = this.words.slice(0);

            return clone;
        },

        /**
         * Creates a word array filled with random bytes.
         *
         * @param {number} nBytes The number of random bytes to generate.
         *
         * @return {WordArray} The random word array.
         *
         * @static
         *
         * @example
         *
         *     var wordArray = CryptoJS.lib.WordArray.random(16);
         */
        random: function (nBytes) {
            var words = [];
            for (var i = 0; i < nBytes; i += 4) {
                words.push((Math.random() * 0x100000000) | 0);
            }

            return new WordArray.init(words, nBytes);
        }
    });

    /**
     * Encoder namespace.
     */
    var C_enc = C.enc = {};

    /**
     * Hex encoding strategy.
     */
    var Hex = C_enc.Hex = {
        /**
         * Converts a word array to a hex string.
         *
         * @param {WordArray} wordArray The word array.
         *
         * @return {string} The hex string.
         *
         * @static
         *
         * @example
         *
         *     var hexString = CryptoJS.enc.Hex.stringify(wordArray);
         */
        stringify: function (wordArray) {
            // Shortcuts
            var words = wordArray.words;
            var sigBytes = wordArray.sigBytes;

            // Convert
            var hexChars = [];
            for (var i = 0; i < sigBytes; i++) {
                var bite = (words[i >>> 2] >>> (24 - (i % 4) * 8)) & 0xff;
                hexChars.push((bite >>> 4).toString(16));
                hexChars.push((bite & 0x0f).toString(16));
            }

            return hexChars.join('');
        },

        /**
         * Converts a hex string to a word array.
         *
         * @param {string} hexStr The hex string.
         *
         * @return {WordArray} The word array.
         *
         * @static
         *
         * @example
         *
         *     var wordArray = CryptoJS.enc.Hex.parse(hexString);
         */
        parse: function (hexStr) {
            // Shortcut
            var hexStrLength = hexStr.length;

            // Convert
            var words = [];
            for (var i = 0; i < hexStrLength; i += 2) {
                words[i >>> 3] |= parseInt(hexStr.substr(i, 2), 16) << (24 - (i % 8) * 4);
            }

            return new WordArray.init(words, hexStrLength / 2);
        }
    };

    /**
     * Latin1 encoding strategy.
     */
    var Latin1 = C_enc.Latin1 = {
        /**
         * Converts a word array to a Latin1 string.
         *
         * @param {WordArray} wordArray The word array.
         *
         * @return {string} The Latin1 string.
         *
         * @static
         *
         * @example
         *
         *     var latin1String = CryptoJS.enc.Latin1.stringify(wordArray);
         */
        stringify: function (wordArray) {
            // Shortcuts
            var words = wordArray.words;
            var sigBytes = wordArray.sigBytes;

            // Convert
            var latin1Chars = [];
            for (var i = 0; i < sigBytes; i++) {
                var bite = (words[i >>> 2] >>> (24 - (i % 4) * 8)) & 0xff;
                latin1Chars.push(String.fromCharCode(bite));
            }

            return latin1Chars.join('');
        },

        /**
         * Converts a Latin1 string to a word array.
         *
         * @param {string} latin1Str The Latin1 string.
         *
         * @return {WordArray} The word array.
         *
         * @static
         *
         * @example
         *
         *     var wordArray = CryptoJS.enc.Latin1.parse(latin1String);
         */
        parse: function (latin1Str) {
            // Shortcut
            var latin1StrLength = latin1Str.length;

            // Convert
            var words = [];
            for (var i = 0; i < latin1StrLength; i++) {
                words[i >>> 2] |= (latin1Str.charCodeAt(i) & 0xff) << (24 - (i % 4) * 8);
            }

            return new WordArray.init(words, latin1StrLength);
        }
    };

    /**
     * UTF-8 encoding strategy.
     */
    var Utf8 = C_enc.Utf8 = {
        /**
         * Converts a word array to a UTF-8 string.
         *
         * @param {WordArray} wordArray The word array.
         *
         * @return {string} The UTF-8 string.
         *
         * @static
         *
         * @example
         *
         *     var utf8String = CryptoJS.enc.Utf8.stringify(wordArray);
         */
        stringify: function (wordArray) {
            try {
                return decodeURIComponent(escape(Latin1.stringify(wordArray)));
            } catch (e) {
                throw new Error('Malformed UTF-8 data');
            }
        },

        /**
         * Converts a UTF-8 string to a word array.
         *
         * @param {string} utf8Str The UTF-8 string.
         *
         * @return {WordArray} The word array.
         *
         * @static
         *
         * @example
         *
         *     var wordArray = CryptoJS.enc.Utf8.parse(utf8String);
         */
        parse: function (utf8Str) {
            return Latin1.parse(unescape(encodeURIComponent(utf8Str)));
        }
    };

    /**
     * Abstract buffered block algorithm template.
     *
     * The property blockSize must be implemented in a concrete subtype.
     *
     * @property {number} _minBufferSize The number of blocks that should be kept unprocessed in the buffer. Default: 0
     */
    var BufferedBlockAlgorithm = C_lib.BufferedBlockAlgorithm = Base.extend({
        /**
         * Resets this block algorithm's data buffer to its initial state.
         *
         * @example
         *
         *     bufferedBlockAlgorithm.reset();
         */
        reset: function () {
            // Initial values
            this._data = new WordArray.init();
            this._nDataBytes = 0;
        },

        /**
         * Adds new data to this block algorithm's buffer.
         *
         * @param {WordArray|string} data The data to append. Strings are converted to a WordArray using UTF-8.
         *
         * @example
         *
         *     bufferedBlockAlgorithm._append('data');
         *     bufferedBlockAlgorithm._append(wordArray);
         */
        _append: function (data) {
            // Convert string to WordArray, else assume WordArray already
            if (typeof data == 'string') {
                data = Utf8.parse(data);
            }

            // Append
            this._data.concat(data);
            this._nDataBytes += data.sigBytes;
        },

        /**
         * Processes available data blocks.
         *
         * This method invokes _doProcessBlock(offset), which must be implemented by a concrete subtype.
         *
         * @param {boolean} doFlush Whether all blocks and partial blocks should be processed.
         *
         * @return {WordArray} The processed data.
         *
         * @example
         *
         *     var processedData = bufferedBlockAlgorithm._process();
         *     var processedData = bufferedBlockAlgorithm._process(!!'flush');
         */
        _process: function (doFlush) {
            // Shortcuts
            var data = this._data;
            var dataWords = data.words;
            var dataSigBytes = data.sigBytes;
            var blockSize = this.blockSize;
            var blockSizeBytes = blockSize * 4;

            // Count blocks ready
            var nBlocksReady = dataSigBytes / blockSizeBytes;
            if (doFlush) {
                // Round up to include partial blocks
                nBlocksReady = Math.ceil(nBlocksReady);
            } else {
                // Round down to include only full blocks,
                // less the number of blocks that must remain in the buffer
                nBlocksReady = Math.max((nBlocksReady | 0) - this._minBufferSize, 0);
            }

            // Count words ready
            var nWordsReady = nBlocksReady * blockSize;

            // Count bytes ready
            var nBytesReady = Math.min(nWordsReady * 4, dataSigBytes);

            // Process blocks
            if (nWordsReady) {
                for (var offset = 0; offset < nWordsReady; offset += blockSize) {
                    // Perform concrete-algorithm logic
                    this._doProcessBlock(dataWords, offset);
                }

                // Remove processed words
                var processedWords = dataWords.splice(0, nWordsReady);
                data.sigBytes -= nBytesReady;
            }

            // Return processed words
            return new WordArray.init(processedWords, nBytesReady);
        },

        /**
         * Creates a copy of this object.
         *
         * @return {Object} The clone.
         *
         * @example
         *
         *     var clone = bufferedBlockAlgorithm.clone();
         */
        clone: function () {
            var clone = Base.clone.call(this);
            clone._data = this._data.clone();

            return clone;
        },

        _minBufferSize: 0
    });

    /**
     * Abstract hasher template.
     *
     * @property {number} blockSize The number of 32-bit words this hasher operates on. Default: 16 (512 bits)
     */
    var Hasher = C_lib.Hasher = BufferedBlockAlgorithm.extend({
        /**
         * Configuration options.
         */
        cfg: Base.extend(),

        /**
         * Initializes a newly created hasher.
         *
         * @param {Object} cfg (Optional) The configuration options to use for this hash computation.
         *
         * @example
         *
         *     var hasher = CryptoJS.algo.SHA256.create();
         */
        init: function (cfg) {
            // Apply config defaults
            this.cfg = this.cfg.extend(cfg);

            // Set initial values
            this.reset();
        },

        /**
         * Resets this hasher to its initial state.
         *
         * @example
         *
         *     hasher.reset();
         */
        reset: function () {
            // Reset data buffer
            BufferedBlockAlgorithm.reset.call(this);

            // Perform concrete-hasher logic
            this._doReset();
        },

        /**
         * Updates this hasher with a message.
         *
         * @param {WordArray|string} messageUpdate The message to append.
         *
         * @return {Hasher} This hasher.
         *
         * @example
         *
         *     hasher.update('message');
         *     hasher.update(wordArray);
         */
        update: function (messageUpdate) {
            // Append
            this._append(messageUpdate);

            // Update the hash
            this._process();

            // Chainable
            return this;
        },

        /**
         * Finalizes the hash computation.
         * Note that the finalize operation is effectively a destructive, read-once operation.
         *
         * @param {WordArray|string} messageUpdate (Optional) A final message update.
         *
         * @return {WordArray} The hash.
         *
         * @example
         *
         *     var hash = hasher.finalize();
         *     var hash = hasher.finalize('message');
         *     var hash = hasher.finalize(wordArray);
         */
        finalize: function (messageUpdate) {
            // Final message update
            if (messageUpdate) {
                this._append(messageUpdate);
            }

            // Perform concrete-hasher logic
            var hash = this._doFinalize();

            return hash;
        },

        blockSize: 512/32,

        /**
         * Creates a shortcut function to a hasher's object interface.
         *
         * @param {Hasher} hasher The hasher to create a helper for.
         *
         * @return {Function} The shortcut function.
         *
         * @static
         *
         * @example
         *
         *     var SHA256 = CryptoJS.lib.Hasher._createHelper(CryptoJS.algo.SHA256);
         */
        _createHelper: function (hasher) {
            return function (message, cfg) {
                return new hasher.init(cfg).finalize(message);
            };
        },

        /**
         * Creates a shortcut function to the HMAC's object interface.
         *
         * @param {Hasher} hasher The hasher to use in this HMAC helper.
         *
         * @return {Function} The shortcut function.
         *
         * @static
         *
         * @example
         *
         *     var HmacSHA256 = CryptoJS.lib.Hasher._createHmacHelper(CryptoJS.algo.SHA256);
         */
        _createHmacHelper: function (hasher) {
            return function (message, key) {
                return new C_algo.HMAC.init(hasher, key).finalize(message);
            };
        }
    });

    /**
     * Algorithm namespace.
     */
    var C_algo = C.algo = {};

    return C;
}(Math));

/*
CryptoJS v3.1.2
code.google.com/p/crypto-js
(c) 2009-2013 by Jeff Mott. All rights reserved.
code.google.com/p/crypto-js/wiki/License
*/
(function () {
    // Shortcuts
    var C = CryptoJS;
    var C_lib = C.lib;
    var WordArray = C_lib.WordArray;
    var C_enc = C.enc;

    /**
     * Base64 encoding strategy.
     */
    var Base64 = C_enc.Base64 = {
        /**
         * Converts a word array to a Base64 string.
         *
         * @param {WordArray} wordArray The word array.
         *
         * @return {string} The Base64 string.
         *
         * @static
         *
         * @example
         *
         *     var base64String = CryptoJS.enc.Base64.stringify(wordArray);
         */
        stringify: function (wordArray) {
            // Shortcuts
            var words = wordArray.words;
            var sigBytes = wordArray.sigBytes;
            var map = this._map;

            // Clamp excess bits
            wordArray.clamp();

            // Convert
            var base64Chars = [];
            for (var i = 0; i < sigBytes; i += 3) {
                var byte1 = (words[i >>> 2]       >>> (24 - (i % 4) * 8))       & 0xff;
                var byte2 = (words[(i + 1) >>> 2] >>> (24 - ((i + 1) % 4) * 8)) & 0xff;
                var byte3 = (words[(i + 2) >>> 2] >>> (24 - ((i + 2) % 4) * 8)) & 0xff;

                var triplet = (byte1 << 16) | (byte2 << 8) | byte3;

                for (var j = 0; (j < 4) && (i + j * 0.75 < sigBytes); j++) {
                    base64Chars.push(map.charAt((triplet >>> (6 * (3 - j))) & 0x3f));
                }
            }

            // Add padding
            var paddingChar = map.charAt(64);
            if (paddingChar) {
                while (base64Chars.length % 4) {
                    base64Chars.push(paddingChar);
                }
            }

            return base64Chars.join('');
        },

        /**
         * Converts a Base64 string to a word array.
         *
         * @param {string} base64Str The Base64 string.
         *
         * @return {WordArray} The word array.
         *
         * @static
         *
         * @example
         *
         *     var wordArray = CryptoJS.enc.Base64.parse(base64String);
         */
        parse: function (base64Str) {
            // Shortcuts
            var base64StrLength = base64Str.length;
            var map = this._map;

            // Ignore padding
            var paddingChar = map.charAt(64);
            if (paddingChar) {
                var paddingIndex = base64Str.indexOf(paddingChar);
                if (paddingIndex != -1) {
                    base64StrLength = paddingIndex;
                }
            }

            // Convert
            var words = [];
            var nBytes = 0;
            for (var i = 0; i < base64StrLength; i++) {
                if (i % 4) {
                    var bits1 = map.indexOf(base64Str.charAt(i - 1)) << ((i % 4) * 2);
                    var bits2 = map.indexOf(base64Str.charAt(i)) >>> (6 - (i % 4) * 2);
                    words[nBytes >>> 2] |= (bits1 | bits2) << (24 - (nBytes % 4) * 8);
                    nBytes++;
                }
            }

            return WordArray.create(words, nBytes);
        },

        _map: 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/='
    };
}());

/*
CryptoJS v3.1.2
code.google.com/p/crypto-js
(c) 2009-2013 by Jeff Mott. All rights reserved.
code.google.com/p/crypto-js/wiki/License
*/
/**
 * Cipher core components.
 */
CryptoJS.lib.Cipher || (function (undefined) {
    // Shortcuts
    var C = CryptoJS;
    var C_lib = C.lib;
    var Base = C_lib.Base;
    var WordArray = C_lib.WordArray;
    var BufferedBlockAlgorithm = C_lib.BufferedBlockAlgorithm;
    var C_enc = C.enc;
    var Utf8 = C_enc.Utf8;
    var Base64 = C_enc.Base64;
    var C_algo = C.algo;
    var EvpKDF = C_algo.EvpKDF;

    /**
     * Abstract base cipher template.
     *
     * @property {number} keySize This cipher's key size. Default: 4 (128 bits)
     * @property {number} ivSize This cipher's IV size. Default: 4 (128 bits)
     * @property {number} _ENC_XFORM_MODE A constant representing encryption mode.
     * @property {number} _DEC_XFORM_MODE A constant representing decryption mode.
     */
    var Cipher = C_lib.Cipher = BufferedBlockAlgorithm.extend({
        /**
         * Configuration options.
         *
         * @property {WordArray} iv The IV to use for this operation.
         */
        cfg: Base.extend(),

        /**
         * Creates this cipher in encryption mode.
         *
         * @param {WordArray} key The key.
         * @param {Object} cfg (Optional) The configuration options to use for this operation.
         *
         * @return {Cipher} A cipher instance.
         *
         * @static
         *
         * @example
         *
         *     var cipher = CryptoJS.algo.AES.createEncryptor(keyWordArray, { iv: ivWordArray });
         */
        createEncryptor: function (key, cfg) {
            return this.create(this._ENC_XFORM_MODE, key, cfg);
        },

        /**
         * Creates this cipher in decryption mode.
         *
         * @param {WordArray} key The key.
         * @param {Object} cfg (Optional) The configuration options to use for this operation.
         *
         * @return {Cipher} A cipher instance.
         *
         * @static
         *
         * @example
         *
         *     var cipher = CryptoJS.algo.AES.createDecryptor(keyWordArray, { iv: ivWordArray });
         */
        createDecryptor: function (key, cfg) {
            return this.create(this._DEC_XFORM_MODE, key, cfg);
        },

        /**
         * Initializes a newly created cipher.
         *
         * @param {number} xformMode Either the encryption or decryption transormation mode constant.
         * @param {WordArray} key The key.
         * @param {Object} cfg (Optional) The configuration options to use for this operation.
         *
         * @example
         *
         *     var cipher = CryptoJS.algo.AES.create(CryptoJS.algo.AES._ENC_XFORM_MODE, keyWordArray, { iv: ivWordArray });
         */
        init: function (xformMode, key, cfg) {
            // Apply config defaults
            this.cfg = this.cfg.extend(cfg);

            // Store transform mode and key
            this._xformMode = xformMode;
            this._key = key;

            // Set initial values
            this.reset();
        },

        /**
         * Resets this cipher to its initial state.
         *
         * @example
         *
         *     cipher.reset();
         */
        reset: function () {
            // Reset data buffer
            BufferedBlockAlgorithm.reset.call(this);

            // Perform concrete-cipher logic
            this._doReset();
        },

        /**
         * Adds data to be encrypted or decrypted.
         *
         * @param {WordArray|string} dataUpdate The data to encrypt or decrypt.
         *
         * @return {WordArray} The data after processing.
         *
         * @example
         *
         *     var encrypted = cipher.process('data');
         *     var encrypted = cipher.process(wordArray);
         */
        process: function (dataUpdate) {
            // Append
            this._append(dataUpdate);

            // Process available blocks
            return this._process();
        },

        /**
         * Finalizes the encryption or decryption process.
         * Note that the finalize operation is effectively a destructive, read-once operation.
         *
         * @param {WordArray|string} dataUpdate The final data to encrypt or decrypt.
         *
         * @return {WordArray} The data after final processing.
         *
         * @example
         *
         *     var encrypted = cipher.finalize();
         *     var encrypted = cipher.finalize('data');
         *     var encrypted = cipher.finalize(wordArray);
         */
        finalize: function (dataUpdate) {
            // Final data update
            if (dataUpdate) {
                this._append(dataUpdate);
            }

            // Perform concrete-cipher logic
            var finalProcessedData = this._doFinalize();

            return finalProcessedData;
        },

        keySize: 128/32,

        ivSize: 128/32,

        _ENC_XFORM_MODE: 1,

        _DEC_XFORM_MODE: 2,

        /**
         * Creates shortcut functions to a cipher's object interface.
         *
         * @param {Cipher} cipher The cipher to create a helper for.
         *
         * @return {Object} An object with encrypt and decrypt shortcut functions.
         *
         * @static
         *
         * @example
         *
         *     var AES = CryptoJS.lib.Cipher._createHelper(CryptoJS.algo.AES);
         */
        _createHelper: (function () {
            function selectCipherStrategy(key) {
                if (typeof key == 'string') {
                    return PasswordBasedCipher;
                } else {
                    return SerializableCipher;
                }
            }

            return function (cipher) {
                return {
                    encrypt: function (message, key, cfg) {
                        return selectCipherStrategy(key).encrypt(cipher, message, key, cfg);
                    },

                    decrypt: function (ciphertext, key, cfg) {
                        return selectCipherStrategy(key).decrypt(cipher, ciphertext, key, cfg);
                    }
                };
            };
        }())
    });

    /**
     * Abstract base stream cipher template.
     *
     * @property {number} blockSize The number of 32-bit words this cipher operates on. Default: 1 (32 bits)
     */
    var StreamCipher = C_lib.StreamCipher = Cipher.extend({
        _doFinalize: function () {
            // Process partial blocks
            var finalProcessedBlocks = this._process(!!'flush');

            return finalProcessedBlocks;
        },

        blockSize: 1
    });

    /**
     * Mode namespace.
     */
    var C_mode = C.mode = {};

    /**
     * Abstract base block cipher mode template.
     */
    var BlockCipherMode = C_lib.BlockCipherMode = Base.extend({
        /**
         * Creates this mode for encryption.
         *
         * @param {Cipher} cipher A block cipher instance.
         * @param {Array} iv The IV words.
         *
         * @static
         *
         * @example
         *
         *     var mode = CryptoJS.mode.CBC.createEncryptor(cipher, iv.words);
         */
        createEncryptor: function (cipher, iv) {
            return this.Encryptor.create(cipher, iv);
        },

        /**
         * Creates this mode for decryption.
         *
         * @param {Cipher} cipher A block cipher instance.
         * @param {Array} iv The IV words.
         *
         * @static
         *
         * @example
         *
         *     var mode = CryptoJS.mode.CBC.createDecryptor(cipher, iv.words);
         */
        createDecryptor: function (cipher, iv) {
            return this.Decryptor.create(cipher, iv);
        },

        /**
         * Initializes a newly created mode.
         *
         * @param {Cipher} cipher A block cipher instance.
         * @param {Array} iv The IV words.
         *
         * @example
         *
         *     var mode = CryptoJS.mode.CBC.Encryptor.create(cipher, iv.words);
         */
        init: function (cipher, iv) {
            this._cipher = cipher;
            this._iv = iv;
        }
    });

    /**
     * Cipher Block Chaining mode.
     */
    var CBC = C_mode.CBC = (function () {
        /**
         * Abstract base CBC mode.
         */
        var CBC = BlockCipherMode.extend();

        /**
         * CBC encryptor.
         */
        CBC.Encryptor = CBC.extend({
            /**
             * Processes the data block at offset.
             *
             * @param {Array} words The data words to operate on.
             * @param {number} offset The offset where the block starts.
             *
             * @example
             *
             *     mode.processBlock(data.words, offset);
             */
            processBlock: function (words, offset) {
                // Shortcuts
                var cipher = this._cipher;
                var blockSize = cipher.blockSize;

                // XOR and encrypt
                xorBlock.call(this, words, offset, blockSize);
                cipher.encryptBlock(words, offset);

                // Remember this block to use with next block
                this._prevBlock = words.slice(offset, offset + blockSize);
            }
        });

        /**
         * CBC decryptor.
         */
        CBC.Decryptor = CBC.extend({
            /**
             * Processes the data block at offset.
             *
             * @param {Array} words The data words to operate on.
             * @param {number} offset The offset where the block starts.
             *
             * @example
             *
             *     mode.processBlock(data.words, offset);
             */
            processBlock: function (words, offset) {
                // Shortcuts
                var cipher = this._cipher;
                var blockSize = cipher.blockSize;

                // Remember this block to use with next block
                var thisBlock = words.slice(offset, offset + blockSize);

                // Decrypt and XOR
                cipher.decryptBlock(words, offset);
                xorBlock.call(this, words, offset, blockSize);

                // This block becomes the previous block
                this._prevBlock = thisBlock;
            }
        });

        function xorBlock(words, offset, blockSize) {
            // Shortcut
            var iv = this._iv;

            // Choose mixing block
            if (iv) {
                var block = iv;

                // Remove IV for subsequent blocks
                this._iv = undefined;
            } else {
                var block = this._prevBlock;
            }

            // XOR blocks
            for (var i = 0; i < blockSize; i++) {
                words[offset + i] ^= block[i];
            }
        }

        return CBC;
    }());

    /**
     * Padding namespace.
     */
    var C_pad = C.pad = {};

    /**
     * PKCS #5/7 padding strategy.
     */
    var Pkcs7 = C_pad.Pkcs7 = {
        /**
         * Pads data using the algorithm defined in PKCS #5/7.
         *
         * @param {WordArray} data The data to pad.
         * @param {number} blockSize The multiple that the data should be padded to.
         *
         * @static
         *
         * @example
         *
         *     CryptoJS.pad.Pkcs7.pad(wordArray, 4);
         */
        pad: function (data, blockSize) {
            // Shortcut
            var blockSizeBytes = blockSize * 4;

            // Count padding bytes
            var nPaddingBytes = blockSizeBytes - data.sigBytes % blockSizeBytes;

            // Create padding word
            var paddingWord = (nPaddingBytes << 24) | (nPaddingBytes << 16) | (nPaddingBytes << 8) | nPaddingBytes;

            // Create padding
            var paddingWords = [];
            for (var i = 0; i < nPaddingBytes; i += 4) {
                paddingWords.push(paddingWord);
            }
            var padding = WordArray.create(paddingWords, nPaddingBytes);

            // Add padding
            data.concat(padding);
        },

        /**
         * Unpads data that had been padded using the algorithm defined in PKCS #5/7.
         *
         * @param {WordArray} data The data to unpad.
         *
         * @static
         *
         * @example
         *
         *     CryptoJS.pad.Pkcs7.unpad(wordArray);
         */
        unpad: function (data) {
            // Get number of padding bytes from last byte
            var nPaddingBytes = data.words[(data.sigBytes - 1) >>> 2] & 0xff;

            // Remove padding
            data.sigBytes -= nPaddingBytes;
        }
    };

    /**
     * Abstract base block cipher template.
     *
     * @property {number} blockSize The number of 32-bit words this cipher operates on. Default: 4 (128 bits)
     */
    var BlockCipher = C_lib.BlockCipher = Cipher.extend({
        /**
         * Configuration options.
         *
         * @property {Mode} mode The block mode to use. Default: CBC
         * @property {Padding} padding The padding strategy to use. Default: Pkcs7
         */
        cfg: Cipher.cfg.extend({
            mode: CBC,
            padding: Pkcs7
        }),

        reset: function () {
            // Reset cipher
            Cipher.reset.call(this);

            // Shortcuts
            var cfg = this.cfg;
            var iv = cfg.iv;
            var mode = cfg.mode;

            // Reset block mode
            if (this._xformMode == this._ENC_XFORM_MODE) {
                var modeCreator = mode.createEncryptor;
            } else /* if (this._xformMode == this._DEC_XFORM_MODE) */ {
                var modeCreator = mode.createDecryptor;

                // Keep at least one block in the buffer for unpadding
                this._minBufferSize = 1;
            }
            this._mode = modeCreator.call(mode, this, iv && iv.words);
        },

        _doProcessBlock: function (words, offset) {
            this._mode.processBlock(words, offset);
        },

        _doFinalize: function () {
            // Shortcut
            var padding = this.cfg.padding;

            // Finalize
            if (this._xformMode == this._ENC_XFORM_MODE) {
                // Pad data
                padding.pad(this._data, this.blockSize);

                // Process final blocks
                var finalProcessedBlocks = this._process(!!'flush');
            } else /* if (this._xformMode == this._DEC_XFORM_MODE) */ {
                // Process final blocks
                var finalProcessedBlocks = this._process(!!'flush');

                // Unpad data
                padding.unpad(finalProcessedBlocks);
            }

            return finalProcessedBlocks;
        },

        blockSize: 128/32
    });

    /**
     * A collection of cipher parameters.
     *
     * @property {WordArray} ciphertext The raw ciphertext.
     * @property {WordArray} key The key to this ciphertext.
     * @property {WordArray} iv The IV used in the ciphering operation.
     * @property {WordArray} salt The salt used with a key derivation function.
     * @property {Cipher} algorithm The cipher algorithm.
     * @property {Mode} mode The block mode used in the ciphering operation.
     * @property {Padding} padding The padding scheme used in the ciphering operation.
     * @property {number} blockSize The block size of the cipher.
     * @property {Format} formatter The default formatting strategy to convert this cipher params object to a string.
     */
    var CipherParams = C_lib.CipherParams = Base.extend({
        /**
         * Initializes a newly created cipher params object.
         *
         * @param {Object} cipherParams An object with any of the possible cipher parameters.
         *
         * @example
         *
         *     var cipherParams = CryptoJS.lib.CipherParams.create({
         *         ciphertext: ciphertextWordArray,
         *         key: keyWordArray,
         *         iv: ivWordArray,
         *         salt: saltWordArray,
         *         algorithm: CryptoJS.algo.AES,
         *         mode: CryptoJS.mode.CBC,
         *         padding: CryptoJS.pad.PKCS7,
         *         blockSize: 4,
         *         formatter: CryptoJS.format.OpenSSL
         *     });
         */
        init: function (cipherParams) {
            this.mixIn(cipherParams);
        },

        /**
         * Converts this cipher params object to a string.
         *
         * @param {Format} formatter (Optional) The formatting strategy to use.
         *
         * @return {string} The stringified cipher params.
         *
         * @throws Error If neither the formatter nor the default formatter is set.
         *
         * @example
         *
         *     var string = cipherParams + '';
         *     var string = cipherParams.toString();
         *     var string = cipherParams.toString(CryptoJS.format.OpenSSL);
         */
        toString: function (formatter) {
            return (formatter || this.formatter).stringify(this);
        }
    });

    /**
     * Format namespace.
     */
    var C_format = C.format = {};

    /**
     * OpenSSL formatting strategy.
     */
    var OpenSSLFormatter = C_format.OpenSSL = {
        /**
         * Converts a cipher params object to an OpenSSL-compatible string.
         *
         * @param {CipherParams} cipherParams The cipher params object.
         *
         * @return {string} The OpenSSL-compatible string.
         *
         * @static
         *
         * @example
         *
         *     var openSSLString = CryptoJS.format.OpenSSL.stringify(cipherParams);
         */
        stringify: function (cipherParams) {
            // Shortcuts
            var ciphertext = cipherParams.ciphertext;
            var salt = cipherParams.salt;

            // Format
            if (salt) {
                var wordArray = WordArray.create([0x53616c74, 0x65645f5f]).concat(salt).concat(ciphertext);
            } else {
                var wordArray = ciphertext;
            }

            return wordArray.toString(Base64);
        },

        /**
         * Converts an OpenSSL-compatible string to a cipher params object.
         *
         * @param {string} openSSLStr The OpenSSL-compatible string.
         *
         * @return {CipherParams} The cipher params object.
         *
         * @static
         *
         * @example
         *
         *     var cipherParams = CryptoJS.format.OpenSSL.parse(openSSLString);
         */
        parse: function (openSSLStr) {
            // Parse base64
            var ciphertext = Base64.parse(openSSLStr);

            // Shortcut
            var ciphertextWords = ciphertext.words;

            // Test for salt
            if (ciphertextWords[0] == 0x53616c74 && ciphertextWords[1] == 0x65645f5f) {
                // Extract salt
                var salt = WordArray.create(ciphertextWords.slice(2, 4));

                // Remove salt from ciphertext
                ciphertextWords.splice(0, 4);
                ciphertext.sigBytes -= 16;
            }

            return CipherParams.create({ ciphertext: ciphertext, salt: salt });
        }
    };

    /**
     * A cipher wrapper that returns ciphertext as a serializable cipher params object.
     */
    var SerializableCipher = C_lib.SerializableCipher = Base.extend({
        /**
         * Configuration options.
         *
         * @property {Formatter} format The formatting strategy to convert cipher param objects to and from a string. Default: OpenSSL
         */
        cfg: Base.extend({
            format: OpenSSLFormatter
        }),

        /**
         * Encrypts a message.
         *
         * @param {Cipher} cipher The cipher algorithm to use.
         * @param {WordArray|string} message The message to encrypt.
         * @param {WordArray} key The key.
         * @param {Object} cfg (Optional) The configuration options to use for this operation.
         *
         * @return {CipherParams} A cipher params object.
         *
         * @static
         *
         * @example
         *
         *     var ciphertextParams = CryptoJS.lib.SerializableCipher.encrypt(CryptoJS.algo.AES, message, key);
         *     var ciphertextParams = CryptoJS.lib.SerializableCipher.encrypt(CryptoJS.algo.AES, message, key, { iv: iv });
         *     var ciphertextParams = CryptoJS.lib.SerializableCipher.encrypt(CryptoJS.algo.AES, message, key, { iv: iv, format: CryptoJS.format.OpenSSL });
         */
        encrypt: function (cipher, message, key, cfg) {
            // Apply config defaults
            cfg = this.cfg.extend(cfg);

            // Encrypt
            var encryptor = cipher.createEncryptor(key, cfg);
            var ciphertext = encryptor.finalize(message);

            // Shortcut
            var cipherCfg = encryptor.cfg;

            // Create and return serializable cipher params
            return CipherParams.create({
                ciphertext: ciphertext,
                key: key,
                iv: cipherCfg.iv,
                algorithm: cipher,
                mode: cipherCfg.mode,
                padding: cipherCfg.padding,
                blockSize: cipher.blockSize,
                formatter: cfg.format
            });
        },

        /**
         * Decrypts serialized ciphertext.
         *
         * @param {Cipher} cipher The cipher algorithm to use.
         * @param {CipherParams|string} ciphertext The ciphertext to decrypt.
         * @param {WordArray} key The key.
         * @param {Object} cfg (Optional) The configuration options to use for this operation.
         *
         * @return {WordArray} The plaintext.
         *
         * @static
         *
         * @example
         *
         *     var plaintext = CryptoJS.lib.SerializableCipher.decrypt(CryptoJS.algo.AES, formattedCiphertext, key, { iv: iv, format: CryptoJS.format.OpenSSL });
         *     var plaintext = CryptoJS.lib.SerializableCipher.decrypt(CryptoJS.algo.AES, ciphertextParams, key, { iv: iv, format: CryptoJS.format.OpenSSL });
         */
        decrypt: function (cipher, ciphertext, key, cfg) {
            // Apply config defaults
            cfg = this.cfg.extend(cfg);

            // Convert string to CipherParams
            ciphertext = this._parse(ciphertext, cfg.format);

            // Decrypt
            var plaintext = cipher.createDecryptor(key, cfg).finalize(ciphertext.ciphertext);

            return plaintext;
        },

        /**
         * Converts serialized ciphertext to CipherParams,
         * else assumed CipherParams already and returns ciphertext unchanged.
         *
         * @param {CipherParams|string} ciphertext The ciphertext.
         * @param {Formatter} format The formatting strategy to use to parse serialized ciphertext.
         *
         * @return {CipherParams} The unserialized ciphertext.
         *
         * @static
         *
         * @example
         *
         *     var ciphertextParams = CryptoJS.lib.SerializableCipher._parse(ciphertextStringOrParams, format);
         */
        _parse: function (ciphertext, format) {
            if (typeof ciphertext == 'string') {
                return format.parse(ciphertext, this);
            } else {
                return ciphertext;
            }
        }
    });

    /**
     * Key derivation function namespace.
     */
    var C_kdf = C.kdf = {};

    /**
     * OpenSSL key derivation function.
     */
    var OpenSSLKdf = C_kdf.OpenSSL = {
        /**
         * Derives a key and IV from a password.
         *
         * @param {string} password The password to derive from.
         * @param {number} keySize The size in words of the key to generate.
         * @param {number} ivSize The size in words of the IV to generate.
         * @param {WordArray|string} salt (Optional) A 64-bit salt to use. If omitted, a salt will be generated randomly.
         *
         * @return {CipherParams} A cipher params object with the key, IV, and salt.
         *
         * @static
         *
         * @example
         *
         *     var derivedParams = CryptoJS.kdf.OpenSSL.execute('Password', 256/32, 128/32);
         *     var derivedParams = CryptoJS.kdf.OpenSSL.execute('Password', 256/32, 128/32, 'saltsalt');
         */
        execute: function (password, keySize, ivSize, salt) {
            // Generate random salt
            if (!salt) {
                salt = WordArray.random(64/8);
            }

            // Derive key and IV
            var key = EvpKDF.create({ keySize: keySize + ivSize }).compute(password, salt);

            // Separate key and IV
            var iv = WordArray.create(key.words.slice(keySize), ivSize * 4);
            key.sigBytes = keySize * 4;

            // Return params
            return CipherParams.create({ key: key, iv: iv, salt: salt });
        }
    };

    /**
     * A serializable cipher wrapper that derives the key from a password,
     * and returns ciphertext as a serializable cipher params object.
     */
    var PasswordBasedCipher = C_lib.PasswordBasedCipher = SerializableCipher.extend({
        /**
         * Configuration options.
         *
         * @property {KDF} kdf The key derivation function to use to generate a key and IV from a password. Default: OpenSSL
         */
        cfg: SerializableCipher.cfg.extend({
            kdf: OpenSSLKdf
        }),

        /**
         * Encrypts a message using a password.
         *
         * @param {Cipher} cipher The cipher algorithm to use.
         * @param {WordArray|string} message The message to encrypt.
         * @param {string} password The password.
         * @param {Object} cfg (Optional) The configuration options to use for this operation.
         *
         * @return {CipherParams} A cipher params object.
         *
         * @static
         *
         * @example
         *
         *     var ciphertextParams = CryptoJS.lib.PasswordBasedCipher.encrypt(CryptoJS.algo.AES, message, 'password');
         *     var ciphertextParams = CryptoJS.lib.PasswordBasedCipher.encrypt(CryptoJS.algo.AES, message, 'password', { format: CryptoJS.format.OpenSSL });
         */
        encrypt: function (cipher, message, password, cfg) {
            // Apply config defaults
            cfg = this.cfg.extend(cfg);

            // Derive key and other params
            var derivedParams = cfg.kdf.execute(password, cipher.keySize, cipher.ivSize);

            // Add IV to config
            cfg.iv = derivedParams.iv;

            // Encrypt
            var ciphertext = SerializableCipher.encrypt.call(this, cipher, message, derivedParams.key, cfg);

            // Mix in derived params
            ciphertext.mixIn(derivedParams);

            return ciphertext;
        },

        /**
         * Decrypts serialized ciphertext using a password.
         *
         * @param {Cipher} cipher The cipher algorithm to use.
         * @param {CipherParams|string} ciphertext The ciphertext to decrypt.
         * @param {string} password The password.
         * @param {Object} cfg (Optional) The configuration options to use for this operation.
         *
         * @return {WordArray} The plaintext.
         *
         * @static
         *
         * @example
         *
         *     var plaintext = CryptoJS.lib.PasswordBasedCipher.decrypt(CryptoJS.algo.AES, formattedCiphertext, 'password', { format: CryptoJS.format.OpenSSL });
         *     var plaintext = CryptoJS.lib.PasswordBasedCipher.decrypt(CryptoJS.algo.AES, ciphertextParams, 'password', { format: CryptoJS.format.OpenSSL });
         */
        decrypt: function (cipher, ciphertext, password, cfg) {
            // Apply config defaults
            cfg = this.cfg.extend(cfg);

            // Convert string to CipherParams
            ciphertext = this._parse(ciphertext, cfg.format);

            // Derive key and other params
            var derivedParams = cfg.kdf.execute(password, cipher.keySize, cipher.ivSize, ciphertext.salt);

            // Add IV to config
            cfg.iv = derivedParams.iv;

            // Decrypt
            var plaintext = SerializableCipher.decrypt.call(this, cipher, ciphertext, derivedParams.key, cfg);

            return plaintext;
        }
    });
}());

/*
CryptoJS v3.1.2
code.google.com/p/crypto-js
(c) 2009-2013 by Jeff Mott. All rights reserved.
code.google.com/p/crypto-js/wiki/License
*/
(function () {
    // Shortcuts
    var C = CryptoJS;
    var C_lib = C.lib;
    var BlockCipher = C_lib.BlockCipher;
    var C_algo = C.algo;

    // Lookup tables
    var SBOX = [];
    var INV_SBOX = [];
    var SUB_MIX_0 = [];
    var SUB_MIX_1 = [];
    var SUB_MIX_2 = [];
    var SUB_MIX_3 = [];
    var INV_SUB_MIX_0 = [];
    var INV_SUB_MIX_1 = [];
    var INV_SUB_MIX_2 = [];
    var INV_SUB_MIX_3 = [];

    // Compute lookup tables
    (function () {
        // Compute double table
        var d = [];
        for (var i = 0; i < 256; i++) {
            if (i < 128) {
                d[i] = i << 1;
            } else {
                d[i] = (i << 1) ^ 0x11b;
            }
        }

        // Walk GF(2^8)
        var x = 0;
        var xi = 0;
        for (var i = 0; i < 256; i++) {
            // Compute sbox
            var sx = xi ^ (xi << 1) ^ (xi << 2) ^ (xi << 3) ^ (xi << 4);
            sx = (sx >>> 8) ^ (sx & 0xff) ^ 0x63;
            SBOX[x] = sx;
            INV_SBOX[sx] = x;

            // Compute multiplication
            var x2 = d[x];
            var x4 = d[x2];
            var x8 = d[x4];

            // Compute sub bytes, mix columns tables
            var t = (d[sx] * 0x101) ^ (sx * 0x1010100);
            SUB_MIX_0[x] = (t << 24) | (t >>> 8);
            SUB_MIX_1[x] = (t << 16) | (t >>> 16);
            SUB_MIX_2[x] = (t << 8)  | (t >>> 24);
            SUB_MIX_3[x] = t;

            // Compute inv sub bytes, inv mix columns tables
            var t = (x8 * 0x1010101) ^ (x4 * 0x10001) ^ (x2 * 0x101) ^ (x * 0x1010100);
            INV_SUB_MIX_0[sx] = (t << 24) | (t >>> 8);
            INV_SUB_MIX_1[sx] = (t << 16) | (t >>> 16);
            INV_SUB_MIX_2[sx] = (t << 8)  | (t >>> 24);
            INV_SUB_MIX_3[sx] = t;

            // Compute next counter
            if (!x) {
                x = xi = 1;
            } else {
                x = x2 ^ d[d[d[x8 ^ x2]]];
                xi ^= d[d[xi]];
            }
        }
    }());

    // Precomputed Rcon lookup
    var RCON = [0x00, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36];

    /**
     * AES block cipher algorithm.
     */
    var AES = C_algo.AES = BlockCipher.extend({
        _doReset: function () {
            // Shortcuts
            var key = this._key;
            var keyWords = key.words;
            var keySize = key.sigBytes / 4;

            // Compute number of rounds
            var nRounds = this._nRounds = keySize + 6

            // Compute number of key schedule rows
            var ksRows = (nRounds + 1) * 4;

            // Compute key schedule
            var keySchedule = this._keySchedule = [];
            for (var ksRow = 0; ksRow < ksRows; ksRow++) {
                if (ksRow < keySize) {
                    keySchedule[ksRow] = keyWords[ksRow];
                } else {
                    var t = keySchedule[ksRow - 1];

                    if (!(ksRow % keySize)) {
                        // Rot word
                        t = (t << 8) | (t >>> 24);

                        // Sub word
                        t = (SBOX[t >>> 24] << 24) | (SBOX[(t >>> 16) & 0xff] << 16) | (SBOX[(t >>> 8) & 0xff] << 8) | SBOX[t & 0xff];

                        // Mix Rcon
                        t ^= RCON[(ksRow / keySize) | 0] << 24;
                    } else if (keySize > 6 && ksRow % keySize == 4) {
                        // Sub word
                        t = (SBOX[t >>> 24] << 24) | (SBOX[(t >>> 16) & 0xff] << 16) | (SBOX[(t >>> 8) & 0xff] << 8) | SBOX[t & 0xff];
                    }

                    keySchedule[ksRow] = keySchedule[ksRow - keySize] ^ t;
                }
            }

            // Compute inv key schedule
            var invKeySchedule = this._invKeySchedule = [];
            for (var invKsRow = 0; invKsRow < ksRows; invKsRow++) {
                var ksRow = ksRows - invKsRow;

                if (invKsRow % 4) {
                    var t = keySchedule[ksRow];
                } else {
                    var t = keySchedule[ksRow - 4];
                }

                if (invKsRow < 4 || ksRow <= 4) {
                    invKeySchedule[invKsRow] = t;
                } else {
                    invKeySchedule[invKsRow] = INV_SUB_MIX_0[SBOX[t >>> 24]] ^ INV_SUB_MIX_1[SBOX[(t >>> 16) & 0xff]] ^
                                               INV_SUB_MIX_2[SBOX[(t >>> 8) & 0xff]] ^ INV_SUB_MIX_3[SBOX[t & 0xff]];
                }
            }
        },

        encryptBlock: function (M, offset) {
            this._doCryptBlock(M, offset, this._keySchedule, SUB_MIX_0, SUB_MIX_1, SUB_MIX_2, SUB_MIX_3, SBOX);
        },

        decryptBlock: function (M, offset) {
            // Swap 2nd and 4th rows
            var t = M[offset + 1];
            M[offset + 1] = M[offset + 3];
            M[offset + 3] = t;

            this._doCryptBlock(M, offset, this._invKeySchedule, INV_SUB_MIX_0, INV_SUB_MIX_1, INV_SUB_MIX_2, INV_SUB_MIX_3, INV_SBOX);

            // Inv swap 2nd and 4th rows
            var t = M[offset + 1];
            M[offset + 1] = M[offset + 3];
            M[offset + 3] = t;
        },

        _doCryptBlock: function (M, offset, keySchedule, SUB_MIX_0, SUB_MIX_1, SUB_MIX_2, SUB_MIX_3, SBOX) {
            // Shortcut
            var nRounds = this._nRounds;

            // Get input, add round key
            var s0 = M[offset]     ^ keySchedule[0];
            var s1 = M[offset + 1] ^ keySchedule[1];
            var s2 = M[offset + 2] ^ keySchedule[2];
            var s3 = M[offset + 3] ^ keySchedule[3];

            // Key schedule row counter
            var ksRow = 4;

            // Rounds
            for (var round = 1; round < nRounds; round++) {
                // Shift rows, sub bytes, mix columns, add round key
                var t0 = SUB_MIX_0[s0 >>> 24] ^ SUB_MIX_1[(s1 >>> 16) & 0xff] ^ SUB_MIX_2[(s2 >>> 8) & 0xff] ^ SUB_MIX_3[s3 & 0xff] ^ keySchedule[ksRow++];
                var t1 = SUB_MIX_0[s1 >>> 24] ^ SUB_MIX_1[(s2 >>> 16) & 0xff] ^ SUB_MIX_2[(s3 >>> 8) & 0xff] ^ SUB_MIX_3[s0 & 0xff] ^ keySchedule[ksRow++];
                var t2 = SUB_MIX_0[s2 >>> 24] ^ SUB_MIX_1[(s3 >>> 16) & 0xff] ^ SUB_MIX_2[(s0 >>> 8) & 0xff] ^ SUB_MIX_3[s1 & 0xff] ^ keySchedule[ksRow++];
                var t3 = SUB_MIX_0[s3 >>> 24] ^ SUB_MIX_1[(s0 >>> 16) & 0xff] ^ SUB_MIX_2[(s1 >>> 8) & 0xff] ^ SUB_MIX_3[s2 & 0xff] ^ keySchedule[ksRow++];

                // Update state
                s0 = t0;
                s1 = t1;
                s2 = t2;
                s3 = t3;
            }

            // Shift rows, sub bytes, add round key
            var t0 = ((SBOX[s0 >>> 24] << 24) | (SBOX[(s1 >>> 16) & 0xff] << 16) | (SBOX[(s2 >>> 8) & 0xff] << 8) | SBOX[s3 & 0xff]) ^ keySchedule[ksRow++];
            var t1 = ((SBOX[s1 >>> 24] << 24) | (SBOX[(s2 >>> 16) & 0xff] << 16) | (SBOX[(s3 >>> 8) & 0xff] << 8) | SBOX[s0 & 0xff]) ^ keySchedule[ksRow++];
            var t2 = ((SBOX[s2 >>> 24] << 24) | (SBOX[(s3 >>> 16) & 0xff] << 16) | (SBOX[(s0 >>> 8) & 0xff] << 8) | SBOX[s1 & 0xff]) ^ keySchedule[ksRow++];
            var t3 = ((SBOX[s3 >>> 24] << 24) | (SBOX[(s0 >>> 16) & 0xff] << 16) | (SBOX[(s1 >>> 8) & 0xff] << 8) | SBOX[s2 & 0xff]) ^ keySchedule[ksRow++];

            // Set output
            M[offset]     = t0;
            M[offset + 1] = t1;
            M[offset + 2] = t2;
            M[offset + 3] = t3;
        },

        keySize: 256/32
    });

    /**
     * Shortcut functions to the cipher's object interface.
     *
     * @example
     *
     *     var ciphertext = CryptoJS.AES.encrypt(message, key, cfg);
     *     var plaintext  = CryptoJS.AES.decrypt(ciphertext, key, cfg);
     */
    C.AES = BlockCipher._createHelper(AES);
}());

/*
CryptoJS v3.1.2
code.google.com/p/crypto-js
(c) 2009-2013 by Jeff Mott. All rights reserved.
code.google.com/p/crypto-js/wiki/License
*/
(function () {
    // Shortcuts
    var C = CryptoJS;
    var C_lib = C.lib;
    var WordArray = C_lib.WordArray;
    var Hasher = C_lib.Hasher;
    var C_algo = C.algo;

    // Reusable object
    var W = [];

    /**
     * SHA-1 hash algorithm.
     */
    var SHA1 = C_algo.SHA1 = Hasher.extend({
        _doReset: function () {
            this._hash = new WordArray.init([
                0x67452301, 0xefcdab89,
                0x98badcfe, 0x10325476,
                0xc3d2e1f0
            ]);
        },

        _doProcessBlock: function (M, offset) {
            // Shortcut
            var H = this._hash.words;

            // Working variables
            var a = H[0];
            var b = H[1];
            var c = H[2];
            var d = H[3];
            var e = H[4];

            // Computation
            for (var i = 0; i < 80; i++) {
                if (i < 16) {
                    W[i] = M[offset + i] | 0;
                } else {
                    var n = W[i - 3] ^ W[i - 8] ^ W[i - 14] ^ W[i - 16];
                    W[i] = (n << 1) | (n >>> 31);
                }

                var t = ((a << 5) | (a >>> 27)) + e + W[i];
                if (i < 20) {
                    t += ((b & c) | (~b & d)) + 0x5a827999;
                } else if (i < 40) {
                    t += (b ^ c ^ d) + 0x6ed9eba1;
                } else if (i < 60) {
                    t += ((b & c) | (b & d) | (c & d)) - 0x70e44324;
                } else /* if (i < 80) */ {
                    t += (b ^ c ^ d) - 0x359d3e2a;
                }

                e = d;
                d = c;
                c = (b << 30) | (b >>> 2);
                b = a;
                a = t;
            }

            // Intermediate hash value
            H[0] = (H[0] + a) | 0;
            H[1] = (H[1] + b) | 0;
            H[2] = (H[2] + c) | 0;
            H[3] = (H[3] + d) | 0;
            H[4] = (H[4] + e) | 0;
        },

        _doFinalize: function () {
            // Shortcuts
            var data = this._data;
            var dataWords = data.words;

            var nBitsTotal = this._nDataBytes * 8;
            var nBitsLeft = data.sigBytes * 8;

            // Add padding
            dataWords[nBitsLeft >>> 5] |= 0x80 << (24 - nBitsLeft % 32);
            dataWords[(((nBitsLeft + 64) >>> 9) << 4) + 14] = Math.floor(nBitsTotal / 0x100000000);
            dataWords[(((nBitsLeft + 64) >>> 9) << 4) + 15] = nBitsTotal;
            data.sigBytes = dataWords.length * 4;

            // Hash final blocks
            this._process();

            // Return final computed hash
            return this._hash;
        },

        clone: function () {
            var clone = Hasher.clone.call(this);
            clone._hash = this._hash.clone();

            return clone;
        }
    });

    /**
     * Shortcut function to the hasher's object interface.
     *
     * @param {WordArray|string} message The message to hash.
     *
     * @return {WordArray} The hash.
     *
     * @static
     *
     * @example
     *
     *     var hash = CryptoJS.SHA1('message');
     *     var hash = CryptoJS.SHA1(wordArray);
     */
    C.SHA1 = Hasher._createHelper(SHA1);

    /**
     * Shortcut function to the HMAC's object interface.
     *
     * @param {WordArray|string} message The message to hash.
     * @param {WordArray|string} key The secret key.
     *
     * @return {WordArray} The HMAC.
     *
     * @static
     *
     * @example
     *
     *     var hmac = CryptoJS.HmacSHA1(message, key);
     */
    C.HmacSHA1 = Hasher._createHmacHelper(SHA1);
}());

/*
CryptoJS v3.1.2
code.google.com/p/crypto-js
(c) 2009-2013 by Jeff Mott. All rights reserved.
code.google.com/p/crypto-js/wiki/License
*/
(function (Math) {
    // Shortcuts
    var C = CryptoJS;
    var C_lib = C.lib;
    var WordArray = C_lib.WordArray;
    var Hasher = C_lib.Hasher;
    var C_algo = C.algo;

    // Initialization and round constants tables
    var H = [];
    var K = [];

    // Compute constants
    (function () {
        function isPrime(n) {
            var sqrtN = Math.sqrt(n);
            for (var factor = 2; factor <= sqrtN; factor++) {
                if (!(n % factor)) {
                    return false;
                }
            }

            return true;
        }

        function getFractionalBits(n) {
            return ((n - (n | 0)) * 0x100000000) | 0;
        }

        var n = 2;
        var nPrime = 0;
        while (nPrime < 64) {
            if (isPrime(n)) {
                if (nPrime < 8) {
                    H[nPrime] = getFractionalBits(Math.pow(n, 1 / 2));
                }
                K[nPrime] = getFractionalBits(Math.pow(n, 1 / 3));

                nPrime++;
            }

            n++;
        }
    }());

    // Reusable object
    var W = [];

    /**
     * SHA-256 hash algorithm.
     */
    var SHA256 = C_algo.SHA256 = Hasher.extend({
        _doReset: function () {
            this._hash = new WordArray.init(H.slice(0));
        },

        _doProcessBlock: function (M, offset) {
            // Shortcut
            var H = this._hash.words;

            // Working variables
            var a = H[0];
            var b = H[1];
            var c = H[2];
            var d = H[3];
            var e = H[4];
            var f = H[5];
            var g = H[6];
            var h = H[7];

            // Computation
            for (var i = 0; i < 64; i++) {
                if (i < 16) {
                    W[i] = M[offset + i] | 0;
                } else {
                    var gamma0x = W[i - 15];
                    var gamma0  = ((gamma0x << 25) | (gamma0x >>> 7))  ^
                                  ((gamma0x << 14) | (gamma0x >>> 18)) ^
                                   (gamma0x >>> 3);

                    var gamma1x = W[i - 2];
                    var gamma1  = ((gamma1x << 15) | (gamma1x >>> 17)) ^
                                  ((gamma1x << 13) | (gamma1x >>> 19)) ^
                                   (gamma1x >>> 10);

                    W[i] = gamma0 + W[i - 7] + gamma1 + W[i - 16];
                }

                var ch  = (e & f) ^ (~e & g);
                var maj = (a & b) ^ (a & c) ^ (b & c);

                var sigma0 = ((a << 30) | (a >>> 2)) ^ ((a << 19) | (a >>> 13)) ^ ((a << 10) | (a >>> 22));
                var sigma1 = ((e << 26) | (e >>> 6)) ^ ((e << 21) | (e >>> 11)) ^ ((e << 7)  | (e >>> 25));

                var t1 = h + sigma1 + ch + K[i] + W[i];
                var t2 = sigma0 + maj;

                h = g;
                g = f;
                f = e;
                e = (d + t1) | 0;
                d = c;
                c = b;
                b = a;
                a = (t1 + t2) | 0;
            }

            // Intermediate hash value
            H[0] = (H[0] + a) | 0;
            H[1] = (H[1] + b) | 0;
            H[2] = (H[2] + c) | 0;
            H[3] = (H[3] + d) | 0;
            H[4] = (H[4] + e) | 0;
            H[5] = (H[5] + f) | 0;
            H[6] = (H[6] + g) | 0;
            H[7] = (H[7] + h) | 0;
        },

        _doFinalize: function () {
            // Shortcuts
            var data = this._data;
            var dataWords = data.words;

            var nBitsTotal = this._nDataBytes * 8;
            var nBitsLeft = data.sigBytes * 8;

            // Add padding
            dataWords[nBitsLeft >>> 5] |= 0x80 << (24 - nBitsLeft % 32);
            dataWords[(((nBitsLeft + 64) >>> 9) << 4) + 14] = Math.floor(nBitsTotal / 0x100000000);
            dataWords[(((nBitsLeft + 64) >>> 9) << 4) + 15] = nBitsTotal;
            data.sigBytes = dataWords.length * 4;

            // Hash final blocks
            this._process();

            // Return final computed hash
            return this._hash;
        },

        clone: function () {
            var clone = Hasher.clone.call(this);
            clone._hash = this._hash.clone();

            return clone;
        }
    });

    /**
     * Shortcut function to the hasher's object interface.
     *
     * @param {WordArray|string} message The message to hash.
     *
     * @return {WordArray} The hash.
     *
     * @static
     *
     * @example
     *
     *     var hash = CryptoJS.SHA256('message');
     *     var hash = CryptoJS.SHA256(wordArray);
     */
    C.SHA256 = Hasher._createHelper(SHA256);

    /**
     * Shortcut function to the HMAC's object interface.
     *
     * @param {WordArray|string} message The message to hash.
     * @param {WordArray|string} key The secret key.
     *
     * @return {WordArray} The HMAC.
     *
     * @static
     *
     * @example
     *
     *     var hmac = CryptoJS.HmacSHA256(message, key);
     */
    C.HmacSHA256 = Hasher._createHmacHelper(SHA256);
}(Math));

/*
CryptoJS v3.1.2
code.google.com/p/crypto-js
(c) 2009-2013 by Jeff Mott. All rights reserved.
code.google.com/p/crypto-js/wiki/License
*/
(function () {
    // Shortcuts
    var C = CryptoJS;
    var C_lib = C.lib;
    var Base = C_lib.Base;
    var C_enc = C.enc;
    var Utf8 = C_enc.Utf8;
    var C_algo = C.algo;

    /**
     * HMAC algorithm.
     */
    var HMAC = C_algo.HMAC = Base.extend({
        /**
         * Initializes a newly created HMAC.
         *
         * @param {Hasher} hasher The hash algorithm to use.
         * @param {WordArray|string} key The secret key.
         *
         * @example
         *
         *     var hmacHasher = CryptoJS.algo.HMAC.create(CryptoJS.algo.SHA256, key);
         */
        init: function (hasher, key) {
            // Init hasher
            hasher = this._hasher = new hasher.init();

            // Convert string to WordArray, else assume WordArray already
            if (typeof key == 'string') {
                key = Utf8.parse(key);
            }

            // Shortcuts
            var hasherBlockSize = hasher.blockSize;
            var hasherBlockSizeBytes = hasherBlockSize * 4;

            // Allow arbitrary length keys
            if (key.sigBytes > hasherBlockSizeBytes) {
                key = hasher.finalize(key);
            }

            // Clamp excess bits
            key.clamp();

            // Clone key for inner and outer pads
            var oKey = this._oKey = key.clone();
            var iKey = this._iKey = key.clone();

            // Shortcuts
            var oKeyWords = oKey.words;
            var iKeyWords = iKey.words;

            // XOR keys with pad constants
            for (var i = 0; i < hasherBlockSize; i++) {
                oKeyWords[i] ^= 0x5c5c5c5c;
                iKeyWords[i] ^= 0x36363636;
            }
            oKey.sigBytes = iKey.sigBytes = hasherBlockSizeBytes;

            // Set initial values
            this.reset();
        },

        /**
         * Resets this HMAC to its initial state.
         *
         * @example
         *
         *     hmacHasher.reset();
         */
        reset: function () {
            // Shortcut
            var hasher = this._hasher;

            // Reset
            hasher.reset();
            hasher.update(this._iKey);
        },

        /**
         * Updates this HMAC with a message.
         *
         * @param {WordArray|string} messageUpdate The message to append.
         *
         * @return {HMAC} This HMAC instance.
         *
         * @example
         *
         *     hmacHasher.update('message');
         *     hmacHasher.update(wordArray);
         */
        update: function (messageUpdate) {
            this._hasher.update(messageUpdate);

            // Chainable
            return this;
        },

        /**
         * Finalizes the HMAC computation.
         * Note that the finalize operation is effectively a destructive, read-once operation.
         *
         * @param {WordArray|string} messageUpdate (Optional) A final message update.
         *
         * @return {WordArray} The HMAC.
         *
         * @example
         *
         *     var hmac = hmacHasher.finalize();
         *     var hmac = hmacHasher.finalize('message');
         *     var hmac = hmacHasher.finalize(wordArray);
         */
        finalize: function (messageUpdate) {
            // Shortcut
            var hasher = this._hasher;

            // Compute HMAC
            var innerHash = hasher.finalize(messageUpdate);
            hasher.reset();
            var hmac = hasher.finalize(this._oKey.clone().concat(innerHash));

            return hmac;
        }
    });
}());

/*
CryptoJS v3.1.2
code.google.com/p/crypto-js
(c) 2009-2013 by Jeff Mott. All rights reserved.
code.google.com/p/crypto-js/wiki/License
*/
/**
 * A noop padding strategy.
 */
CryptoJS.pad.NoPadding = {
    pad: function () {
    },

    unpad: function () {
    }
};

/*
CryptoJS v3.1.2
code.google.com/p/crypto-js
(c) 2009-2013 by Jeff Mott. All rights reserved.
code.google.com/p/crypto-js/wiki/License
*/
/**
 * Counter block mode.
 */
CryptoJS.mode.CTR = (function () {
    var CTR = CryptoJS.lib.BlockCipherMode.extend();

    var Encryptor = CTR.Encryptor = CTR.extend({
        processBlock: function (words, offset) {
            // Shortcuts
            var cipher = this._cipher
            var blockSize = cipher.blockSize;
            var iv = this._iv;
            var counter = this._counter;

            // Generate keystream
            if (iv) {
                counter = this._counter = iv.slice(0);

                // Remove IV for subsequent blocks
                this._iv = undefined;
            }
            var keystream = counter.slice(0);
            cipher.encryptBlock(keystream, 0);

            // Increment counter
            counter[blockSize - 1] = (counter[blockSize - 1] + 1) | 0

            // Encrypt
            for (var i = 0; i < blockSize; i++) {
                words[offset + i] ^= keystream[i];
            }
        }
    });

    CTR.Decryptor = Encryptor;

    return CTR;
}());


  return CryptoJS

}));
/*!
 * EventEmitter v4.2.3 - git.io/ee
 * Oliver Caldwell
 * MIT license
 * @preserve
 */

(function () {
	'use strict';

	/**
	 * Class for managing events.
	 * Can be extended to provide event functionality in other classes.
	 *
	 * @class EventEmitter Manages event registering and emitting.
	 */
	function EventEmitter() {}

	// Shortcuts to improve speed and size

	// Easy access to the prototype
	var proto = EventEmitter.prototype;

	/**
	 * Finds the index of the listener for the event in it's storage array.
	 *
	 * @param {Function[]} listeners Array of listeners to search through.
	 * @param {Function} listener Method to look for.
	 * @return {Number} Index of the specified listener, -1 if not found
	 * @api private
	 */
	function indexOfListener(listeners, listener) {
		var i = listeners.length;
		while (i--) {
			if (listeners[i].listener === listener) {
				return i;
			}
		}

		return -1;
	}

	/**
	 * Alias a method while keeping the context correct, to allow for overwriting of target method.
	 *
	 * @param {String} name The name of the target method.
	 * @return {Function} The aliased method
	 * @api private
	 */
	function alias(name) {
		return function aliasClosure() {
			return this[name].apply(this, arguments);
		};
	}

	/**
	 * Returns the listener array for the specified event.
	 * Will initialise the event object and listener arrays if required.
	 * Will return an object if you use a regex search. The object contains keys for each matched event. So /ba[rz]/ might return an object containing bar and baz. But only if you have either defined them with defineEvent or added some listeners to them.
	 * Each property in the object response is an array of listener functions.
	 *
	 * @param {String|RegExp} evt Name of the event to return the listeners from.
	 * @return {Function[]|Object} All listener functions for the event.
	 */
	proto.getListeners = function getListeners(evt) {
		var events = this._getEvents();
		var response;
		var key;

		// Return a concatenated array of all matching events if
		// the selector is a regular expression.
		if (typeof evt === 'object') {
			response = {};
			for (key in events) {
				if (events.hasOwnProperty(key) && evt.test(key)) {
					response[key] = events[key];
				}
			}
		}
		else {
			response = events[evt] || (events[evt] = []);
		}

		return response;
	};

	/**
	 * Takes a list of listener objects and flattens it into a list of listener functions.
	 *
	 * @param {Object[]} listeners Raw listener objects.
	 * @return {Function[]} Just the listener functions.
	 */
	proto.flattenListeners = function flattenListeners(listeners) {
		var flatListeners = [];
		var i;

		for (i = 0; i < listeners.length; i += 1) {
			flatListeners.push(listeners[i].listener);
		}

		return flatListeners;
	};

	/**
	 * Fetches the requested listeners via getListeners but will always return the results inside an object. This is mainly for internal use but others may find it useful.
	 *
	 * @param {String|RegExp} evt Name of the event to return the listeners from.
	 * @return {Object} All listener functions for an event in an object.
	 */
	proto.getListenersAsObject = function getListenersAsObject(evt) {
		var listeners = this.getListeners(evt);
		var response;

		if (listeners instanceof Array) {
			response = {};
			response[evt] = listeners;
		}

		return response || listeners;
	};

	/**
	 * Adds a listener function to the specified event.
	 * The listener will not be added if it is a duplicate.
	 * If the listener returns true then it will be removed after it is called.
	 * If you pass a regular expression as the event name then the listener will be added to all events that match it.
	 *
	 * @param {String|RegExp} evt Name of the event to attach the listener to.
	 * @param {Function} listener Method to be called when the event is emitted. If the function returns true then it will be removed after calling.
	 * @return {Object} Current instance of EventEmitter for chaining.
	 */
	proto.addListener = function addListener(evt, listener) {
		var listeners = this.getListenersAsObject(evt);
		var listenerIsWrapped = typeof listener === 'object';
		var key;

		for (key in listeners) {
			if (listeners.hasOwnProperty(key) && indexOfListener(listeners[key], listener) === -1) {
				listeners[key].push(listenerIsWrapped ? listener : {
					listener: listener,
					once: false
				});
			}
		}

		return this;
	};

	/**
	 * Alias of addListener
	 */
	proto.on = alias('addListener');

	/**
	 * Semi-alias of addListener. It will add a listener that will be
	 * automatically removed after it's first execution.
	 *
	 * @param {String|RegExp} evt Name of the event to attach the listener to.
	 * @param {Function} listener Method to be called when the event is emitted. If the function returns true then it will be removed after calling.
	 * @return {Object} Current instance of EventEmitter for chaining.
	 */
	proto.addOnceListener = function addOnceListener(evt, listener) {
		return this.addListener(evt, {
			listener: listener,
			once: true
		});
	};

	/**
	 * Alias of addOnceListener.
	 */
	proto.once = alias('addOnceListener');

	/**
	 * Defines an event name. This is required if you want to use a regex to add a listener to multiple events at once. If you don't do this then how do you expect it to know what event to add to? Should it just add to every possible match for a regex? No. That is scary and bad.
	 * You need to tell it what event names should be matched by a regex.
	 *
	 * @param {String} evt Name of the event to create.
	 * @return {Object} Current instance of EventEmitter for chaining.
	 */
	proto.defineEvent = function defineEvent(evt) {
		this.getListeners(evt);
		return this;
	};

	/**
	 * Uses defineEvent to define multiple events.
	 *
	 * @param {String[]} evts An array of event names to define.
	 * @return {Object} Current instance of EventEmitter for chaining.
	 */
	proto.defineEvents = function defineEvents(evts) {
		for (var i = 0; i < evts.length; i += 1) {
			this.defineEvent(evts[i]);
		}
		return this;
	};

	/**
	 * Removes a listener function from the specified event.
	 * When passed a regular expression as the event name, it will remove the listener from all events that match it.
	 *
	 * @param {String|RegExp} evt Name of the event to remove the listener from.
	 * @param {Function} listener Method to remove from the event.
	 * @return {Object} Current instance of EventEmitter for chaining.
	 */
	proto.removeListener = function removeListener(evt, listener) {
		var listeners = this.getListenersAsObject(evt);
		var index;
		var key;

		for (key in listeners) {
			if (listeners.hasOwnProperty(key)) {
				index = indexOfListener(listeners[key], listener);

				if (index !== -1) {
					listeners[key].splice(index, 1);
				}
			}
		}

		return this;
	};

	/**
	 * Alias of removeListener
	 */
	proto.off = alias('removeListener');

	/**
	 * Adds listeners in bulk using the manipulateListeners method.
	 * If you pass an object as the second argument you can add to multiple events at once. The object should contain key value pairs of events and listeners or listener arrays. You can also pass it an event name and an array of listeners to be added.
	 * You can also pass it a regular expression to add the array of listeners to all events that match it.
	 * Yeah, this function does quite a bit. That's probably a bad thing.
	 *
	 * @param {String|Object|RegExp} evt An event name if you will pass an array of listeners next. An object if you wish to add to multiple events at once.
	 * @param {Function[]} [listeners] An optional array of listener functions to add.
	 * @return {Object} Current instance of EventEmitter for chaining.
	 */
	proto.addListeners = function addListeners(evt, listeners) {
		// Pass through to manipulateListeners
		return this.manipulateListeners(false, evt, listeners);
	};

	/**
	 * Removes listeners in bulk using the manipulateListeners method.
	 * If you pass an object as the second argument you can remove from multiple events at once. The object should contain key value pairs of events and listeners or listener arrays.
	 * You can also pass it an event name and an array of listeners to be removed.
	 * You can also pass it a regular expression to remove the listeners from all events that match it.
	 *
	 * @param {String|Object|RegExp} evt An event name if you will pass an array of listeners next. An object if you wish to remove from multiple events at once.
	 * @param {Function[]} [listeners] An optional array of listener functions to remove.
	 * @return {Object} Current instance of EventEmitter for chaining.
	 */
	proto.removeListeners = function removeListeners(evt, listeners) {
		// Pass through to manipulateListeners
		return this.manipulateListeners(true, evt, listeners);
	};

	/**
	 * Edits listeners in bulk. The addListeners and removeListeners methods both use this to do their job. You should really use those instead, this is a little lower level.
	 * The first argument will determine if the listeners are removed (true) or added (false).
	 * If you pass an object as the second argument you can add/remove from multiple events at once. The object should contain key value pairs of events and listeners or listener arrays.
	 * You can also pass it an event name and an array of listeners to be added/removed.
	 * You can also pass it a regular expression to manipulate the listeners of all events that match it.
	 *
	 * @param {Boolean} remove True if you want to remove listeners, false if you want to add.
	 * @param {String|Object|RegExp} evt An event name if you will pass an array of listeners next. An object if you wish to add/remove from multiple events at once.
	 * @param {Function[]} [listeners] An optional array of listener functions to add/remove.
	 * @return {Object} Current instance of EventEmitter for chaining.
	 */
	proto.manipulateListeners = function manipulateListeners(remove, evt, listeners) {
		var i;
		var value;
		var single = remove ? this.removeListener : this.addListener;
		var multiple = remove ? this.removeListeners : this.addListeners;

		// If evt is an object then pass each of it's properties to this method
		if (typeof evt === 'object' && !(evt instanceof RegExp)) {
			for (i in evt) {
				if (evt.hasOwnProperty(i) && (value = evt[i])) {
					// Pass the single listener straight through to the singular method
					if (typeof value === 'function') {
						single.call(this, i, value);
					}
					else {
						// Otherwise pass back to the multiple function
						multiple.call(this, i, value);
					}
				}
			}
		}
		else {
			// So evt must be a string
			// And listeners must be an array of listeners
			// Loop over it and pass each one to the multiple method
			i = listeners.length;
			while (i--) {
				single.call(this, evt, listeners[i]);
			}
		}

		return this;
	};

	/**
	 * Removes all listeners from a specified event.
	 * If you do not specify an event then all listeners will be removed.
	 * That means every event will be emptied.
	 * You can also pass a regex to remove all events that match it.
	 *
	 * @param {String|RegExp} [evt] Optional name of the event to remove all listeners for. Will remove from every event if not passed.
	 * @return {Object} Current instance of EventEmitter for chaining.
	 */
	proto.removeEvent = function removeEvent(evt) {
		var type = typeof evt;
		var events = this._getEvents();
		var key;

		// Remove different things depending on the state of evt
		if (type === 'string') {
			// Remove all listeners for the specified event
			delete events[evt];
		}
		else if (type === 'object') {
			// Remove all events matching the regex.
			for (key in events) {
				if (events.hasOwnProperty(key) && evt.test(key)) {
					delete events[key];
				}
			}
		}
		else {
			// Remove all listeners in all events
			delete this._events;
		}

		return this;
	};

	/**
	 * Emits an event of your choice.
	 * When emitted, every listener attached to that event will be executed.
	 * If you pass the optional argument array then those arguments will be passed to every listener upon execution.
	 * Because it uses `apply`, your array of arguments will be passed as if you wrote them out separately.
	 * So they will not arrive within the array on the other side, they will be separate.
	 * You can also pass a regular expression to emit to all events that match it.
	 *
	 * @param {String|RegExp} evt Name of the event to emit and execute listeners for.
	 * @param {Array} [args] Optional array of arguments to be passed to each listener.
	 * @return {Object} Current instance of EventEmitter for chaining.
	 */
	proto.emitEvent = function emitEvent(evt, args) {
		var listeners = this.getListenersAsObject(evt);
		var listener;
		var i;
		var key;
		var response;

		for (key in listeners) {
			if (listeners.hasOwnProperty(key)) {
				i = listeners[key].length;

				while (i--) {
					// If the listener returns true then it shall be removed from the event
					// The function is executed either with a basic call or an apply if there is an args array
					listener = listeners[key][i];

					if (listener.once === true) {
						this.removeListener(evt, listener.listener);
					}

					response = listener.listener.apply(this, args || []);

					if (response === this._getOnceReturnValue()) {
						this.removeListener(evt, listener.listener);
					}
				}
			}
		}

		return this;
	};

	/**
	 * Alias of emitEvent
	 */
	proto.trigger = alias('emitEvent');

	/**
	 * Subtly different from emitEvent in that it will pass its arguments on to the listeners, as opposed to taking a single array of arguments to pass on.
	 * As with emitEvent, you can pass a regex in place of the event name to emit to all events that match it.
	 *
	 * @param {String|RegExp} evt Name of the event to emit and execute listeners for.
	 * @param {...*} Optional additional arguments to be passed to each listener.
	 * @return {Object} Current instance of EventEmitter for chaining.
	 */
	proto.emit = function emit(evt) {
		var args = Array.prototype.slice.call(arguments, 1);
		return this.emitEvent(evt, args);
	};

	/**
	 * Sets the current value to check against when executing listeners. If a
	 * listeners return value matches the one set here then it will be removed
	 * after execution. This value defaults to true.
	 *
	 * @param {*} value The new value to check for when executing listeners.
	 * @return {Object} Current instance of EventEmitter for chaining.
	 */
	proto.setOnceReturnValue = function setOnceReturnValue(value) {
		this._onceReturnValue = value;
		return this;
	};

	/**
	 * Fetches the current value to check against when executing listeners. If
	 * the listeners return value matches this one then it should be removed
	 * automatically. It will return true by default.
	 *
	 * @return {*|Boolean} The current value to check for or the default, true.
	 * @api private
	 */
	proto._getOnceReturnValue = function _getOnceReturnValue() {
		if (this.hasOwnProperty('_onceReturnValue')) {
			return this._onceReturnValue;
		}
		else {
			return true;
		}
	};

	/**
	 * Fetches the events object and creates one if required.
	 *
	 * @return {Object} The events storage object.
	 * @api private
	 */
	proto._getEvents = function _getEvents() {
		return this._events || (this._events = {});
	};

	// Expose the class either via AMD, CommonJS or the global object
	if (typeof define === 'function' && define.amd) {
		define('eventemitter',[],function () {
			return EventEmitter;
		});
	}
	else if (typeof module === 'object' && module.exports){
		module.exports = EventEmitter;
	}
	else {
		this.EventEmitter = EventEmitter;
	}
}.call(this));

/*!

  otr.js v0.2.16 - 2015-12-03
  (c) 2015 - Arlo Breault <arlolra@gmail.com>
  Freely distributed under the MPL-2.0 license.

  This file is concatenated for the browser.
  Please see: https://github.com/arlolra/otr

*/

;(function (root, factory) {

  if (typeof define === 'function' && define.amd) {
    define('otr',[
        "bigint"
      , "crypto"
      , "eventemitter"
    ], function (BigInt, CryptoJS, EventEmitter) {
      var root = {
          BigInt: BigInt
        , CryptoJS: CryptoJS
        , EventEmitter: EventEmitter
        , OTR: {}
        , DSA: {}
      }
      return factory.call(root)
    })
  } else {
    root.OTR = {}
    root.DSA = {}
    factory.call(root)
  }

}(this, function () {

;(function () {
  "use strict";

  var root = this

  var CONST = {

    // diffie-heilman
      N : 'FFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD129024E088A67CC74020BBEA63B139B22514A08798E3404DDEF9519B3CD3A431B302B0A6DF25F14374FE1356D6D51C245E485B576625E7EC6F44C42E9A637ED6B0BFF5CB6F406B7EDEE386BFB5A899FA5AE9F24117C4B1FE649286651ECE45B3DC2007CB8A163BF0598DA48361C55D39A69163FA8FD24CF5F83655D23DCA3AD961C62F356208552BB9ED529077096966D670C354E4ABC9804F1746C08CA237327FFFFFFFFFFFFFFFF'
    , G : '2'

    // otr message states
    , MSGSTATE_PLAINTEXT : 0
    , MSGSTATE_ENCRYPTED : 1
    , MSGSTATE_FINISHED  : 2

    // otr auth states
    , AUTHSTATE_NONE               : 0
    , AUTHSTATE_AWAITING_DHKEY     : 1
    , AUTHSTATE_AWAITING_REVEALSIG : 2
    , AUTHSTATE_AWAITING_SIG       : 3

    // whitespace tags
    , WHITESPACE_TAG    : '\x20\x09\x20\x20\x09\x09\x09\x09\x20\x09\x20\x09\x20\x09\x20\x20'
    , WHITESPACE_TAG_V2 : '\x20\x20\x09\x09\x20\x20\x09\x20'
    , WHITESPACE_TAG_V3 : '\x20\x20\x09\x09\x20\x20\x09\x09'

    // otr tags
    , OTR_TAG       : '?OTR'
    , OTR_VERSION_1 : '\x00\x01'
    , OTR_VERSION_2 : '\x00\x02'
    , OTR_VERSION_3 : '\x00\x03'

    // smp machine states
    , SMPSTATE_EXPECT0 : 0
    , SMPSTATE_EXPECT1 : 1
    , SMPSTATE_EXPECT2 : 2
    , SMPSTATE_EXPECT3 : 3
    , SMPSTATE_EXPECT4 : 4

    // unstandard status codes
    , STATUS_SEND_QUERY  : 0
    , STATUS_AKE_INIT    : 1
    , STATUS_AKE_SUCCESS : 2
    , STATUS_END_OTR     : 3

  }

  if (typeof module !== 'undefined' && module.exports) {
    module.exports = CONST
  } else {
    root.OTR.CONST = CONST
  }

}).call(this)
;(function () {
  "use strict";

  var root = this

  var HLP = {}, CryptoJS, BigInt
  if (typeof module !== 'undefined' && module.exports) {
    module.exports = HLP = {}
    CryptoJS = require('../vendor/crypto.js')
    BigInt = require('../vendor/bigint.js')
  } else {
    if (root.OTR) root.OTR.HLP = HLP
    if (root.DSA) root.DSA.HLP = HLP
    CryptoJS = root.CryptoJS
    BigInt = root.BigInt
  }

  // data types (byte lengths)
  var DTS = {
      BYTE  : 1
    , SHORT : 2
    , INT   : 4
    , CTR   : 8
    , MAC   : 20
    , SIG   : 40
  }

  // otr message wrapper begin and end
  var WRAPPER_BEGIN = "?OTR"
    , WRAPPER_END   = "."

  var TWO = BigInt.str2bigInt('2', 10)

  HLP.debug = function (msg) {
    // used as HLP.debug.call(ctx, msg)
    if ( this.debug &&
         typeof this.debug !== 'function' &&
         typeof console !== 'undefined'
    ) console.log(msg)
  }

  HLP.extend = function (child, parent) {
    for (var key in parent) {
      if (Object.hasOwnProperty.call(parent, key))
        child[key] = parent[key]
    }
    function Ctor() { this.constructor = child }
    Ctor.prototype = parent.prototype
    child.prototype = new Ctor()
    child.__super__ = parent.prototype
  }

  // assumes 32-bit
  function intCompare(x, y) {
    var z = ~(x ^ y)
    z &= z >> 16
    z &= z >> 8
    z &= z >> 4
    z &= z >> 2
    z &= z >> 1
    return z & 1
  }

  // constant-time string comparison
  HLP.compare = function (str1, str2) {
    if (str1.length !== str2.length)
      return false
    var i = 0, result = 0
    for (; i < str1.length; i++)
      result |= str1[i].charCodeAt(0) ^ str2[i].charCodeAt(0)
    return intCompare(result, 0)
  }

  HLP.randomExponent = function () {
    return BigInt.randBigInt(1536)
  }

  HLP.smpHash = function (version, fmpi, smpi) {
    var sha256 = CryptoJS.algo.SHA256.create()
    sha256.update(CryptoJS.enc.Latin1.parse(HLP.packBytes(version, DTS.BYTE)))
    sha256.update(CryptoJS.enc.Latin1.parse(HLP.packMPI(fmpi)))
    if (smpi) sha256.update(CryptoJS.enc.Latin1.parse(HLP.packMPI(smpi)))
    var hash = sha256.finalize()
    return HLP.bits2bigInt(hash.toString(CryptoJS.enc.Latin1))
  }

  HLP.makeMac = function (aesctr, m) {
    var pass = CryptoJS.enc.Latin1.parse(m)
    var mac = CryptoJS.HmacSHA256(CryptoJS.enc.Latin1.parse(aesctr), pass)
    return HLP.mask(mac.toString(CryptoJS.enc.Latin1), 0, 160)
  }

  HLP.make1Mac = function (aesctr, m) {
    var pass = CryptoJS.enc.Latin1.parse(m)
    var mac = CryptoJS.HmacSHA1(CryptoJS.enc.Latin1.parse(aesctr), pass)
    return mac.toString(CryptoJS.enc.Latin1)
  }

  HLP.encryptAes = function (msg, c, iv) {
    var opts = {
        mode: CryptoJS.mode.CTR
      , iv: CryptoJS.enc.Latin1.parse(iv)
      , padding: CryptoJS.pad.NoPadding
    }
    var aesctr = CryptoJS.AES.encrypt(
        msg
      , CryptoJS.enc.Latin1.parse(c)
      , opts
    )
    var aesctr_decoded = CryptoJS.enc.Base64.parse(aesctr.toString())
    return CryptoJS.enc.Latin1.stringify(aesctr_decoded)
  }

  HLP.decryptAes = function (msg, c, iv) {
    msg = CryptoJS.enc.Latin1.parse(msg)
    var opts = {
        mode: CryptoJS.mode.CTR
      , iv: CryptoJS.enc.Latin1.parse(iv)
      , padding: CryptoJS.pad.NoPadding
    }
    return CryptoJS.AES.decrypt(
        CryptoJS.enc.Base64.stringify(msg)
      , CryptoJS.enc.Latin1.parse(c)
      , opts
    )
  }

  HLP.multPowMod = function (a, b, c, d, e) {
    return BigInt.multMod(BigInt.powMod(a, b, e), BigInt.powMod(c, d, e), e)
  }

  HLP.ZKP = function (v, c, d, e) {
    return BigInt.equals(c, HLP.smpHash(v, d, e))
  }

  // greater than, or equal
  HLP.GTOE = function (a, b) {
    return (BigInt.equals(a, b) || BigInt.greater(a, b))
  }

  HLP.between = function (x, a, b) {
    return (BigInt.greater(x, a) && BigInt.greater(b, x))
  }

  HLP.checkGroup = function (g, N_MINUS_2) {
    return HLP.GTOE(g, TWO) && HLP.GTOE(N_MINUS_2, g)
  }

  HLP.h1 = function (b, secbytes) {
    var sha1 = CryptoJS.algo.SHA1.create()
    sha1.update(CryptoJS.enc.Latin1.parse(b))
    sha1.update(CryptoJS.enc.Latin1.parse(secbytes))
    return (sha1.finalize()).toString(CryptoJS.enc.Latin1)
  }

  HLP.h2 = function (b, secbytes) {
    var sha256 = CryptoJS.algo.SHA256.create()
    sha256.update(CryptoJS.enc.Latin1.parse(b))
    sha256.update(CryptoJS.enc.Latin1.parse(secbytes))
    return (sha256.finalize()).toString(CryptoJS.enc.Latin1)
  }

  HLP.mask = function (bytes, start, n) {
    return bytes.substr(start / 8, n / 8)
  }

  var _toString = String.fromCharCode;
  HLP.packBytes = function (val, bytes) {
    val = val.toString(16)
    var nex, res = ''  // big-endian, unsigned long
    for (; bytes > 0; bytes--) {
      nex = val.length ? val.substr(-2, 2) : '0'
      val = val.substr(0, val.length - 2)
      res = _toString(parseInt(nex, 16)) + res
    }
    return res
  }

  HLP.packINT = function (d) {
    return HLP.packBytes(d, DTS.INT)
  }

  HLP.packCtr = function (d) {
    return HLP.padCtr(HLP.packBytes(d, DTS.CTR))
  }

  HLP.padCtr = function (ctr) {
    return ctr + '\x00\x00\x00\x00\x00\x00\x00\x00'
  }

  HLP.unpackCtr = function (d) {
    d = HLP.toByteArray(d.substring(0, 8))
    return HLP.unpack(d)
  }

  HLP.unpack = function (arr) {
    var val = 0, i = 0, len = arr.length
    for (; i < len; i++) {
      val = (val * 256) + arr[i]
    }
    return val
  }

  HLP.packData = function (d) {
    return HLP.packINT(d.length) + d
  }

  HLP.bits2bigInt = function (bits) {
    bits = HLP.toByteArray(bits)
    return BigInt.ba2bigInt(bits)
  }

  HLP.packMPI = function (mpi) {
    return HLP.packData(BigInt.bigInt2bits(BigInt.trim(mpi, 0)))
  }

  HLP.packSHORT = function (short) {
    return HLP.packBytes(short, DTS.SHORT)
  }

  HLP.unpackSHORT = function (short) {
    short = HLP.toByteArray(short)
    return HLP.unpack(short)
  }

  HLP.packTLV = function (type, value) {
    return HLP.packSHORT(type) + HLP.packSHORT(value.length) + value
  }

  HLP.readLen = function (msg) {
    msg = HLP.toByteArray(msg.substring(0, 4))
    return HLP.unpack(msg)
  }

  HLP.readData = function (data) {
    var n = HLP.unpack(data.splice(0, 4))
    return [n, data]
  }

  HLP.readMPI = function (data) {
    data = HLP.toByteArray(data)
    data = HLP.readData(data)
    return BigInt.ba2bigInt(data[1])
  }

  HLP.packMPIs = function (arr) {
    return arr.reduce(function (prv, cur) {
      return prv + HLP.packMPI(cur)
    }, '')
  }

  HLP.unpackMPIs = function (num, mpis) {
    var i = 0, arr = []
    for (; i < num; i++) arr.push('MPI')
    return (HLP.splitype(arr, mpis)).map(function (m) {
      return HLP.readMPI(m)
    })
  }

  HLP.wrapMsg = function (msg, fs, v3, our_it, their_it) {
    msg = CryptoJS.enc.Base64.stringify(CryptoJS.enc.Latin1.parse(msg))
    msg = WRAPPER_BEGIN + ":" + msg + WRAPPER_END

    var its
    if (v3) {
      its = '|'
      its += (HLP.readLen(our_it)).toString(16)
      its += '|'
      its += (HLP.readLen(their_it)).toString(16)
    }

    if (!fs) return [null, msg]

    var n = Math.ceil(msg.length / fs)
    if (n > 65535) return ['Too many fragments']
    if (n == 1) return [null, msg]

    var k, bi, ei, frag, mf, mfs = []
    for (k = 1; k <= n; k++) {
      bi = (k - 1) * fs
      ei = k * fs
      frag = msg.slice(bi, ei)
      mf = WRAPPER_BEGIN
      if (v3) mf += its
      mf += ',' + k + ','
      mf += n + ','
      mf += frag + ','
      mfs.push(mf)
    }

    return [null, mfs]
  }

  HLP.splitype = function splitype(arr, msg) {
    var data = []
    arr.forEach(function (a) {
      var str
      switch (a) {
        case 'PUBKEY':
          str = splitype(['SHORT', 'MPI', 'MPI', 'MPI', 'MPI'], msg).join('')
          break
        case 'DATA':  // falls through
        case 'MPI':
          str = msg.substring(0, HLP.readLen(msg) + 4)
          break
        default:
          str = msg.substring(0, DTS[a])
      }
      data.push(str)
      msg = msg.substring(str.length)
    })
    return data
  }

  // https://github.com/msgpack/msgpack-javascript/blob/master/msgpack.js

  var _bin2num = (function () {
    var i = 0, _bin2num = {}
    for (; i < 0x100; ++i) {
      _bin2num[String.fromCharCode(i)] = i  // "\00" -> 0x00
    }
    for (i = 0x80; i < 0x100; ++i) {  // [Webkit][Gecko]
      _bin2num[String.fromCharCode(0xf700 + i)] = i  // "\f780" -> 0x80
    }
    return _bin2num
  }())

  HLP.toByteArray = function (data) {
    var rv = []
      , ary = data.split("")
      , i = -1
      , iz = ary.length
      , remain = iz % 8

    while (remain--) {
      ++i
      rv[i] = _bin2num[ary[i]]
    }
    remain = iz >> 3
    while (remain--) {
      rv.push(_bin2num[ary[++i]], _bin2num[ary[++i]],
              _bin2num[ary[++i]], _bin2num[ary[++i]],
              _bin2num[ary[++i]], _bin2num[ary[++i]],
              _bin2num[ary[++i]], _bin2num[ary[++i]])
    }
    return rv
  }

}).call(this)
;(function () {
  "use strict";

  var root = this

  var CryptoJS, BigInt, Worker, WWPath, HLP
  if (typeof module !== 'undefined' && module.exports) {
    module.exports = DSA
    CryptoJS = require('../vendor/crypto.js')
    BigInt = require('../vendor/bigint.js')
    WWPath = require('path').join(__dirname, '/dsa-webworker.js')
    HLP = require('./helpers.js')
  } else {
    // copy over and expose internals
    Object.keys(root.DSA).forEach(function (k) {
      DSA[k] = root.DSA[k]
    })
    root.DSA = DSA
    CryptoJS = root.CryptoJS
    BigInt = root.BigInt
    Worker = root.Worker
    WWPath = 'dsa-webworker.js'
    HLP = DSA.HLP
  }

  var ZERO = BigInt.str2bigInt('0', 10)
    , ONE = BigInt.str2bigInt('1', 10)
    , TWO = BigInt.str2bigInt('2', 10)
    , KEY_TYPE = '\x00\x00'

  var DEBUG = false
  function timer() {
    var start = (new Date()).getTime()
    return function (s) {
      if (!DEBUG || typeof console === 'undefined') return
      var t = (new Date()).getTime()
      console.log(s + ': ' + (t - start))
      start = t
    }
  }

  function makeRandom(min, max) {
    var c = BigInt.randBigInt(BigInt.bitSize(max))
    if (!HLP.between(c, min, max)) return makeRandom(min, max)
    return c
  }

  // altered BigInt.randProbPrime()
  // n rounds of Miller Rabin (after trial division with small primes)
  var rpprb = []
  function isProbPrime(k, n) {
    var i, B = 30000, l = BigInt.bitSize(k)
    var primes = BigInt.primes

    if (primes.length === 0)
      primes = BigInt.findPrimes(B)

    if (rpprb.length != k.length)
      rpprb = BigInt.dup(k)

    // check ans for divisibility by small primes up to B
    for (i = 0; (i < primes.length) && (primes[i] <= B); i++)
      if (BigInt.modInt(k, primes[i]) === 0 && !BigInt.equalsInt(k, primes[i]))
        return 0

    // do n rounds of Miller Rabin, with random bases less than k
    for (i = 0; i < n; i++) {
      BigInt.randBigInt_(rpprb, l, 0)
      while(!BigInt.greater(k, rpprb))  // pick a random rpprb that's < k
        BigInt.randBigInt_(rpprb, l, 0)
      if (!BigInt.millerRabin(k, rpprb))
        return 0
    }

    return 1
  }

  var bit_lengths = {
      '1024': { N: 160, repeat: 40 }  // 40x should give 2^-80 confidence
    , '2048': { N: 224, repeat: 56 }
  }

  var primes = {}

  // follows go lang http://golang.org/src/pkg/crypto/dsa/dsa.go
  // fips version was removed in 0c99af0df3e7
  function generatePrimes(bit_length) {

    var t = timer()  // for debugging

    // number of MR tests to perform
    var repeat = bit_lengths[bit_length].repeat

    var N = bit_lengths[bit_length].N

    var LM1 = BigInt.twoToThe(bit_length - 1)
    var bl4 = 4 * bit_length
    var brk = false

    var q, p, rem, counter
    for (;;) {

      q = BigInt.randBigInt(N, 1)
      q[0] |= 1

      if (!isProbPrime(q, repeat)) continue
      t('q')

      for (counter = 0; counter < bl4; counter++) {
        p = BigInt.randBigInt(bit_length, 1)
        p[0] |= 1

        rem = BigInt.mod(p, q)
        rem = BigInt.sub(rem, ONE)
        p = BigInt.sub(p, rem)

        if (BigInt.greater(LM1, p)) continue
        if (!isProbPrime(p, repeat)) continue

        t('p')
        primes[bit_length] = { p: p, q: q }
        brk = true
        break
      }

      if (brk) break
    }

    var h = BigInt.dup(TWO)
    var pm1 = BigInt.sub(p, ONE)
    var e = BigInt.multMod(pm1, BigInt.inverseMod(q, p), p)

    var g
    for (;;) {
      g = BigInt.powMod(h, e, p)
      if (BigInt.equals(g, ONE)) {
        h = BigInt.add(h, ONE)
        continue
      }
      primes[bit_length].g = g
      t('g')
      return
    }

    throw new Error('Unreachable!')
  }

  function DSA(obj, opts) {
    if (!(this instanceof DSA)) return new DSA(obj, opts)

    // options
    opts = opts || {}

    // inherit
    if (obj) {
      var self = this
      ;['p', 'q', 'g', 'y', 'x'].forEach(function (prop) {
        self[prop] = obj[prop]
      })
      this.type = obj.type || KEY_TYPE
      return
    }

    // default to 1024
    var bit_length = parseInt(opts.bit_length ? opts.bit_length : 1024, 10)

    if (!bit_lengths[bit_length])
      throw new Error('Unsupported bit length.')

    // set primes
    if (!primes[bit_length])
      generatePrimes(bit_length)

    this.p = primes[bit_length].p
    this.q = primes[bit_length].q
    this.g = primes[bit_length].g

    // key type
    this.type = KEY_TYPE

    // private key
    this.x = makeRandom(ZERO, this.q)

    // public keys (p, q, g, y)
    this.y = BigInt.powMod(this.g, this.x, this.p)

    // nocache?
    if (opts.nocache) primes[bit_length] = null
  }

  DSA.prototype = {

    constructor: DSA,

    packPublic: function () {
      var str = this.type
      str += HLP.packMPI(this.p)
      str += HLP.packMPI(this.q)
      str += HLP.packMPI(this.g)
      str += HLP.packMPI(this.y)
      return str
    },

    packPrivate: function () {
      var str = this.packPublic() + HLP.packMPI(this.x)
      str = CryptoJS.enc.Latin1.parse(str)
      return str.toString(CryptoJS.enc.Base64)
    },

    // http://www.imperialviolet.org/2013/06/15/suddendeathentropy.html
    generateNonce: function (m) {
      var priv = BigInt.bigInt2bits(BigInt.trim(this.x, 0))
      var rand = BigInt.bigInt2bits(BigInt.randBigInt(256))

      var sha256 = CryptoJS.algo.SHA256.create()
      sha256.update(CryptoJS.enc.Latin1.parse(priv))
      sha256.update(m)
      sha256.update(CryptoJS.enc.Latin1.parse(rand))

      var hash = sha256.finalize()
      hash = HLP.bits2bigInt(hash.toString(CryptoJS.enc.Latin1))
      BigInt.rightShift_(hash, 256 - BigInt.bitSize(this.q))

      return HLP.between(hash, ZERO, this.q) ? hash : this.generateNonce(m)
    },

    sign: function (m) {
      m = CryptoJS.enc.Latin1.parse(m)
      var b = BigInt.str2bigInt(m.toString(CryptoJS.enc.Hex), 16)
      var k, r = ZERO, s = ZERO
      while (BigInt.isZero(s) || BigInt.isZero(r)) {
        k = this.generateNonce(m)
        r = BigInt.mod(BigInt.powMod(this.g, k, this.p), this.q)
        if (BigInt.isZero(r)) continue
        s = BigInt.inverseMod(k, this.q)
        s = BigInt.mult(s, BigInt.add(b, BigInt.mult(this.x, r)))
        s = BigInt.mod(s, this.q)
      }
      return [r, s]
    },

    fingerprint: function () {
      var pk = this.packPublic()
      if (this.type === KEY_TYPE) pk = pk.substring(2)
      pk = CryptoJS.enc.Latin1.parse(pk)
      return CryptoJS.SHA1(pk).toString(CryptoJS.enc.Hex)
    }

  }

  DSA.parsePublic = function (str, priv) {
    var fields = ['SHORT', 'MPI', 'MPI', 'MPI', 'MPI']
    if (priv) fields.push('MPI')
    str = HLP.splitype(fields, str)
    var obj = {
        type: str[0]
      , p: HLP.readMPI(str[1])
      , q: HLP.readMPI(str[2])
      , g: HLP.readMPI(str[3])
      , y: HLP.readMPI(str[4])
    }
    if (priv) obj.x = HLP.readMPI(str[5])
    return new DSA(obj)
  }

  function tokenizeStr(str) {
    var start, end

    start = str.indexOf("(")
    end = str.lastIndexOf(")")

    if (start < 0 || end < 0)
      throw new Error("Malformed S-Expression")

    str = str.substring(start + 1, end)

    var splt = str.search(/\s/)
    var obj = {
        type: str.substring(0, splt)
      , val: []
    }

    str = str.substring(splt + 1, end)
    start = str.indexOf("(")

    if (start < 0) obj.val.push(str)
    else {

      var i, len, ss, es
      while (start > -1) {
        i = start + 1
        len = str.length
        for (ss = 1, es = 0; i < len && es < ss; i++) {
          if (str[i] === "(") ss++
          if (str[i] === ")") es++
        }
        obj.val.push(tokenizeStr(str.substring(start, ++i)))
        str = str.substring(++i)
        start = str.indexOf("(")
      }

    }
    return obj
  }

  function parseLibotr(obj) {
    if (!obj.type) throw new Error("Parse error.")

    var o, val
    if (obj.type === "privkeys") {
      o = []
      obj.val.forEach(function (i) {
        o.push(parseLibotr(i))
      })
      return o
    }

    o = {}
    obj.val.forEach(function (i) {

      val = i.val[0]
      if (typeof val === "string") {

        if (val.indexOf("#") === 0) {
          val = val.substring(1, val.lastIndexOf("#"))
          val = BigInt.str2bigInt(val, 16)
        }

      } else {
        val = parseLibotr(i)
      }

      o[i.type] = val
    })

    return o
  }

  DSA.parsePrivate = function (str, libotr) {
    if (!libotr) {
      str = CryptoJS.enc.Base64.parse(str)
      str = str.toString(CryptoJS.enc.Latin1)
      return DSA.parsePublic(str, true)
    }
    // only returning the first key found
    return parseLibotr(tokenizeStr(str))[0]["private-key"].dsa
  }

  DSA.verify = function (key, m, r, s) {
    if (!HLP.between(r, ZERO, key.q) || !HLP.between(s, ZERO, key.q))
      return false

    var hm = CryptoJS.enc.Latin1.parse(m)  // CryptoJS.SHA1(m)
    hm = BigInt.str2bigInt(hm.toString(CryptoJS.enc.Hex), 16)

    var w = BigInt.inverseMod(s, key.q)
    var u1 = BigInt.multMod(hm, w, key.q)
    var u2 = BigInt.multMod(r, w, key.q)

    u1 = BigInt.powMod(key.g, u1, key.p)
    u2 = BigInt.powMod(key.y, u2, key.p)

    var v = BigInt.mod(BigInt.multMod(u1, u2, key.p), key.q)

    return BigInt.equals(v, r)
  }

  DSA.createInWebWorker = function (options, cb) {
    var opts = {
        path: WWPath
      , seed: BigInt.getSeed
    }
    if (options && typeof options === 'object')
      Object.keys(options).forEach(function (k) {
        opts[k] = options[k]
      })

    // load optional dep. in node
    if (typeof module !== 'undefined' && module.exports)
      Worker = require('webworker-threads').Worker

    var worker = new Worker(opts.path)
    worker.onmessage = function (e) {
      var data = e.data
      switch (data.type) {
        case "debug":
          if (!DEBUG || typeof console === 'undefined') return
          console.log(data.val)
          break;
        case "data":
          worker.terminate()
          cb(DSA.parsePrivate(data.val))
          break;
        default:
          throw new Error("Unrecognized type.")
      }
    }
    worker.postMessage({
        seed: opts.seed()
      , imports: opts.imports
      , debug: DEBUG
    })
  }

}).call(this)
;(function () {
  "use strict";

  var root = this

  var Parse = {}, CryptoJS, CONST, HLP
  if (typeof module !== 'undefined' && module.exports) {
    module.exports = Parse
    CryptoJS = require('../vendor/crypto.js')
    CONST = require('./const.js')
    HLP = require('./helpers.js')
  } else {
    root.OTR.Parse = Parse
    CryptoJS = root.CryptoJS
    CONST = root.OTR.CONST
    HLP = root.OTR.HLP
  }

  // whitespace tags
  var tags = {}
  tags[CONST.WHITESPACE_TAG_V2] = CONST.OTR_VERSION_2
  tags[CONST.WHITESPACE_TAG_V3] = CONST.OTR_VERSION_3

  Parse.parseMsg = function (otr, msg) {

    var ver = []

    // is this otr?
    var start = msg.indexOf(CONST.OTR_TAG)
    if (!~start) {

      // restart fragments
      this.initFragment(otr)

      // whitespace tags
      ind = msg.indexOf(CONST.WHITESPACE_TAG)

      if (~ind) {

        msg = msg.split('')
        msg.splice(ind, 16)

        var tag, len = msg.length
        for (; ind < len;) {
          tag = msg.slice(ind, ind + 8).join('')
          if (Object.hasOwnProperty.call(tags, tag)) {
            msg.splice(ind, 8)
            ver.push(tags[tag])
            continue
          }
          ind += 8
        }

        msg = msg.join('')

      }

      return { msg: msg, ver: ver }
    }

    var ind = start + CONST.OTR_TAG.length
    var com = msg[ind]

    // message fragment
    if (com === ',' || com === '|') {
      return this.msgFragment(otr, msg.substring(ind + 1), (com === '|'))
    }

    this.initFragment(otr)

    // query message
    if (~['?', 'v'].indexOf(com)) {

      // version 1
      if (msg[ind] === '?') {
        ver.push(CONST.OTR_VERSION_1)
        ind += 1
      }

      // other versions
      var vers = {
          '2': CONST.OTR_VERSION_2
        , '3': CONST.OTR_VERSION_3
      }
      var qs = msg.substring(ind + 1)
      var qi = qs.indexOf('?')

      if (qi >= 1) {
        qs = qs.substring(0, qi).split('')
        if (msg[ind] === 'v') {
          qs.forEach(function (q) {
            if (Object.hasOwnProperty.call(vers, q)) ver.push(vers[q])
          })
        }
      }

      return { cls: 'query', ver: ver }
    }

    // otr message
    if (com === ':') {

      ind += 1

      var info = msg.substring(ind, ind + 4)
      if (info.length < 4) return { msg: msg }
      info = CryptoJS.enc.Base64.parse(info).toString(CryptoJS.enc.Latin1)

      var version = info.substring(0, 2)
      var type = info.substring(2)

      // supporting otr versions 2 and 3
      if (!otr['ALLOW_V' + HLP.unpackSHORT(version)]) return { msg: msg }

      ind += 4

      var end = msg.substring(ind).indexOf('.')
      if (!~end) return { msg: msg }

      msg = CryptoJS.enc.Base64.parse(msg.substring(ind, ind + end))
      msg = CryptoJS.enc.Latin1.stringify(msg)

      // instance tags
      var instance_tags
      if (version === CONST.OTR_VERSION_3) {
        instance_tags = msg.substring(0, 8)
        msg = msg.substring(8)
      }

      var cls
      if (~['\x02', '\x0a', '\x11', '\x12'].indexOf(type)) {
        cls = 'ake'
      } else if (type === '\x03') {
        cls = 'data'
      }

      return {
          version: version
        , type: type
        , msg: msg
        , cls: cls
        , instance_tags: instance_tags
      }
    }

    // error message
    if (msg.substring(ind, ind + 7) === ' Error:') {
      if (otr.ERROR_START_AKE) {
        otr.sendQueryMsg()
      }
      return { msg: msg.substring(ind + 7), cls: 'error' }
    }

    return { msg: msg }
  }

  Parse.initFragment = function (otr) {
    otr.fragment = { s: '', j: 0, k: 0 }
  }

  Parse.msgFragment = function (otr, msg, v3) {

    msg = msg.split(',')

    // instance tags
    if (v3) {
      var its = msg.shift().split('|')
      var their_it = HLP.packINT(parseInt(its[0], 16))
      var our_it = HLP.packINT(parseInt(its[1], 16))
      if (otr.checkInstanceTags(their_it + our_it)) return  // ignore
    }

    if (msg.length < 4 ||
      isNaN(parseInt(msg[0], 10)) ||
      isNaN(parseInt(msg[1], 10))
    ) return

    var k = parseInt(msg[0], 10)
    var n = parseInt(msg[1], 10)
    msg = msg[2]

    if (n < k || n === 0 || k === 0) {
      this.initFragment(otr)
      return
    }

    if (k === 1) {
      this.initFragment(otr)
      otr.fragment = { k: 1, n: n, s: msg }
    } else if (n === otr.fragment.n && k === (otr.fragment.k + 1)) {
      otr.fragment.s += msg
      otr.fragment.k += 1
    } else {
      this.initFragment(otr)
    }

    if (n === k) {
      msg = otr.fragment.s
      this.initFragment(otr)
      return this.parseMsg(otr, msg)
    }

    return
  }

}).call(this)
;(function () {
  "use strict";

  var root = this

  var CryptoJS, BigInt, CONST, HLP, DSA
  if (typeof module !== 'undefined' && module.exports) {
    module.exports = AKE
    CryptoJS = require('../vendor/crypto.js')
    BigInt = require('../vendor/bigint.js')
    CONST = require('./const.js')
    HLP = require('./helpers.js')
    DSA = require('./dsa.js')
  } else {
    root.OTR.AKE = AKE
    CryptoJS = root.CryptoJS
    BigInt = root.BigInt
    CONST = root.OTR.CONST
    HLP = root.OTR.HLP
    DSA = root.DSA
  }

  // diffie-hellman modulus
  // see group 5, RFC 3526
  var N = BigInt.str2bigInt(CONST.N, 16)
  var N_MINUS_2 = BigInt.sub(N, BigInt.str2bigInt('2', 10))

  function hMac(gx, gy, pk, kid, m) {
    var pass = CryptoJS.enc.Latin1.parse(m)
    var hmac = CryptoJS.algo.HMAC.create(CryptoJS.algo.SHA256, pass)
    hmac.update(CryptoJS.enc.Latin1.parse(HLP.packMPI(gx)))
    hmac.update(CryptoJS.enc.Latin1.parse(HLP.packMPI(gy)))
    hmac.update(CryptoJS.enc.Latin1.parse(pk))
    hmac.update(CryptoJS.enc.Latin1.parse(kid))
    return (hmac.finalize()).toString(CryptoJS.enc.Latin1)
  }

  // AKE constructor
  function AKE(otr) {
    if (!(this instanceof AKE)) return new AKE(otr)

    // otr instance
    this.otr = otr

    // our keys
    this.our_dh = otr.our_old_dh
    this.our_keyid = otr.our_keyid - 1

    // their keys
    this.their_y = null
    this.their_keyid = null
    this.their_priv_pk = null

    // state
    this.ssid = null
    this.transmittedRS = false
    this.r = null

    // bind methods
    var self = this
    ;['sendMsg'].forEach(function (meth) {
      self[meth] = self[meth].bind(self)
    })
  }

  AKE.prototype = {

    constructor: AKE,

    createKeys: function(g) {
      var s = BigInt.powMod(g, this.our_dh.privateKey, N)
      var secbytes = HLP.packMPI(s)
      this.ssid = HLP.mask(HLP.h2('\x00', secbytes), 0, 64)  // first 64-bits
      var tmp = HLP.h2('\x01', secbytes)
      this.c = HLP.mask(tmp, 0, 128)  // first 128-bits
      this.c_prime = HLP.mask(tmp, 128, 128)  // second 128-bits
      this.m1 = HLP.h2('\x02', secbytes)
      this.m2 = HLP.h2('\x03', secbytes)
      this.m1_prime = HLP.h2('\x04', secbytes)
      this.m2_prime = HLP.h2('\x05', secbytes)
    },

    verifySignMac: function (mac, aesctr, m2, c, their_y, our_dh_pk, m1, ctr) {
      // verify mac
      var vmac = HLP.makeMac(aesctr, m2)
      if (!HLP.compare(mac, vmac))
        return ['MACs do not match.']

      // decrypt x
      var x = HLP.decryptAes(aesctr.substring(4), c, ctr)
      x = HLP.splitype(['PUBKEY', 'INT', 'SIG'], x.toString(CryptoJS.enc.Latin1))

      var m = hMac(their_y, our_dh_pk, x[0], x[1], m1)
      var pub = DSA.parsePublic(x[0])

      var r = HLP.bits2bigInt(x[2].substring(0, 20))
      var s = HLP.bits2bigInt(x[2].substring(20))

      // verify sign m
      if (!DSA.verify(pub, m, r, s)) return ['Cannot verify signature of m.']

      return [null, HLP.readLen(x[1]), pub]
    },

    makeM: function (their_y, m1, c, m2) {
      var pk = this.otr.priv.packPublic()
      var kid = HLP.packINT(this.our_keyid)
      var m = hMac(this.our_dh.publicKey, their_y, pk, kid, m1)
      m = this.otr.priv.sign(m)
      var msg = pk + kid
      msg += BigInt.bigInt2bits(m[0], 20)  // pad to 20 bytes
      msg += BigInt.bigInt2bits(m[1], 20)
      msg = CryptoJS.enc.Latin1.parse(msg)
      var aesctr = HLP.packData(HLP.encryptAes(msg, c, HLP.packCtr(0)))
      var mac = HLP.makeMac(aesctr, m2)
      return aesctr + mac
    },

    akeSuccess: function (version) {
      HLP.debug.call(this.otr, 'success')

      if (BigInt.equals(this.their_y, this.our_dh.publicKey))
        return this.otr.error('equal keys - we have a problem.')

      this.otr.our_old_dh = this.our_dh
      this.otr.their_priv_pk = this.their_priv_pk

      if (!(
        (this.their_keyid === this.otr.their_keyid &&
         BigInt.equals(this.their_y, this.otr.their_y)) ||
        (this.their_keyid === (this.otr.their_keyid - 1) &&
         BigInt.equals(this.their_y, this.otr.their_old_y))
      )) {

        this.otr.their_y = this.their_y
        this.otr.their_old_y = null
        this.otr.their_keyid = this.their_keyid

        // rotate keys
        this.otr.sessKeys[0] = [ new this.otr.DHSession(
            this.otr.our_dh
          , this.otr.their_y
        ), null ]
        this.otr.sessKeys[1] = [ new this.otr.DHSession(
            this.otr.our_old_dh
          , this.otr.their_y
        ), null ]

      }

      // ake info
      this.otr.ssid = this.ssid
      this.otr.transmittedRS = this.transmittedRS
      this.otr_version = version

      // go encrypted
      this.otr.authstate = CONST.AUTHSTATE_NONE
      this.otr.msgstate = CONST.MSGSTATE_ENCRYPTED

      // null out values
      this.r = null
      this.myhashed = null
      this.dhcommit = null
      this.encrypted = null
      this.hashed = null

      this.otr.trigger('status', [CONST.STATUS_AKE_SUCCESS])

      // send stored msgs
      this.otr.sendStored()
    },

    handleAKE: function (msg) {
      var send, vsm, type
      var version = msg.version

      switch (msg.type) {

        case '\x02':
          HLP.debug.call(this.otr, 'd-h key message')

          msg = HLP.splitype(['DATA', 'DATA'], msg.msg)

          if (this.otr.authstate === CONST.AUTHSTATE_AWAITING_DHKEY) {
            var ourHash = HLP.readMPI(this.myhashed)
            var theirHash = HLP.readMPI(msg[1])
            if (BigInt.greater(ourHash, theirHash)) {
              type = '\x02'
              send = this.dhcommit
              break  // ignore
            } else {
              // forget
              this.our_dh = this.otr.dh()
              this.otr.authstate = CONST.AUTHSTATE_NONE
              this.r = null
              this.myhashed = null
            }
          } else if (
            this.otr.authstate === CONST.AUTHSTATE_AWAITING_SIG
          ) this.our_dh = this.otr.dh()

          this.otr.authstate = CONST.AUTHSTATE_AWAITING_REVEALSIG

          this.encrypted = msg[0].substring(4)
          this.hashed = msg[1].substring(4)

          type = '\x0a'
          send = HLP.packMPI(this.our_dh.publicKey)
          break

        case '\x0a':
          HLP.debug.call(this.otr, 'reveal signature message')

          msg = HLP.splitype(['MPI'], msg.msg)

          if (this.otr.authstate !== CONST.AUTHSTATE_AWAITING_DHKEY) {
            if (this.otr.authstate === CONST.AUTHSTATE_AWAITING_SIG) {
              if (!BigInt.equals(this.their_y, HLP.readMPI(msg[0]))) return
            } else {
              return  // ignore
            }
          }

          this.otr.authstate = CONST.AUTHSTATE_AWAITING_SIG

          this.their_y = HLP.readMPI(msg[0])

          // verify gy is legal 2 <= gy <= N-2
          if (!HLP.checkGroup(this.their_y, N_MINUS_2))
            return this.otr.error('Illegal g^y.')

          this.createKeys(this.their_y)

          type = '\x11'
          send = HLP.packMPI(this.r)
          send += this.makeM(this.their_y, this.m1, this.c, this.m2)

          this.m1 = null
          this.m2 = null
          this.c = null
          break

        case '\x11':
          HLP.debug.call(this.otr, 'signature message')

          if (this.otr.authstate !== CONST.AUTHSTATE_AWAITING_REVEALSIG)
            return  // ignore

          msg = HLP.splitype(['DATA', 'DATA', 'MAC'], msg.msg)

          this.r = HLP.readMPI(msg[0])

          // decrypt their_y
          var key = CryptoJS.enc.Hex.parse(BigInt.bigInt2str(this.r, 16))
          key = CryptoJS.enc.Latin1.stringify(key)

          var gxmpi = HLP.decryptAes(this.encrypted, key, HLP.packCtr(0))
          gxmpi = gxmpi.toString(CryptoJS.enc.Latin1)

          this.their_y = HLP.readMPI(gxmpi)

          // verify hash
          var hash = CryptoJS.SHA256(CryptoJS.enc.Latin1.parse(gxmpi))

          if (!HLP.compare(this.hashed, hash.toString(CryptoJS.enc.Latin1)))
            return this.otr.error('Hashed g^x does not match.')

          // verify gx is legal 2 <= g^x <= N-2
          if (!HLP.checkGroup(this.their_y, N_MINUS_2))
            return this.otr.error('Illegal g^x.')

          this.createKeys(this.their_y)

          vsm = this.verifySignMac(
              msg[2]
            , msg[1]
            , this.m2
            , this.c
            , this.their_y
            , this.our_dh.publicKey
            , this.m1
            , HLP.packCtr(0)
          )
          if (vsm[0]) return this.otr.error(vsm[0])

          // store their key
          this.their_keyid = vsm[1]
          this.their_priv_pk = vsm[2]

          send = this.makeM(
              this.their_y
            , this.m1_prime
            , this.c_prime
            , this.m2_prime
          )

          this.m1 = null
          this.m2 = null
          this.m1_prime = null
          this.m2_prime = null
          this.c = null
          this.c_prime = null

          this.sendMsg(version, '\x12', send)
          this.akeSuccess(version)
          return

        case '\x12':
          HLP.debug.call(this.otr, 'data message')

          if (this.otr.authstate !== CONST.AUTHSTATE_AWAITING_SIG)
            return  // ignore

          msg = HLP.splitype(['DATA', 'MAC'], msg.msg)

          vsm = this.verifySignMac(
              msg[1]
            , msg[0]
            , this.m2_prime
            , this.c_prime
            , this.their_y
            , this.our_dh.publicKey
            , this.m1_prime
            , HLP.packCtr(0)
          )
          if (vsm[0]) return this.otr.error(vsm[0])

          // store their key
          this.their_keyid = vsm[1]
          this.their_priv_pk = vsm[2]

          this.m1_prime = null
          this.m2_prime = null
          this.c_prime = null

          this.transmittedRS = true
          this.akeSuccess(version)
          return

        default:
          return  // ignore

      }

      this.sendMsg(version, type, send)
    },

    sendMsg: function (version, type, msg) {
      var send = version + type
      var v3 = (version === CONST.OTR_VERSION_3)

      // instance tags for v3
      if (v3) {
        HLP.debug.call(this.otr, 'instance tags')
        send += this.otr.our_instance_tag
        send += this.otr.their_instance_tag
      }

      send += msg

      // fragment message if necessary
      send = HLP.wrapMsg(
          send
        , this.otr.fragment_size
        , v3
        , this.otr.our_instance_tag
        , this.otr.their_instance_tag
      )
      if (send[0]) return this.otr.error(send[0])

      this.otr.io(send[1])
    },

    initiateAKE: function (version) {
      HLP.debug.call(this.otr, 'd-h commit message')

      this.otr.trigger('status', [CONST.STATUS_AKE_INIT])

      this.otr.authstate = CONST.AUTHSTATE_AWAITING_DHKEY

      var gxmpi = HLP.packMPI(this.our_dh.publicKey)
      gxmpi = CryptoJS.enc.Latin1.parse(gxmpi)

      this.r = BigInt.randBigInt(128)
      var key = CryptoJS.enc.Hex.parse(BigInt.bigInt2str(this.r, 16))
      key = CryptoJS.enc.Latin1.stringify(key)

      this.myhashed = CryptoJS.SHA256(gxmpi)
      this.myhashed = HLP.packData(this.myhashed.toString(CryptoJS.enc.Latin1))

      this.dhcommit = HLP.packData(HLP.encryptAes(gxmpi, key, HLP.packCtr(0)))
      this.dhcommit += this.myhashed

      this.sendMsg(version, '\x02', this.dhcommit)
    }

  }

}).call(this)
;(function () {
  "use strict";

  var root = this

  var CryptoJS, BigInt,  EventEmitter, CONST, HLP
  if (typeof module !== 'undefined' && module.exports) {
    module.exports = SM
    CryptoJS = require('../vendor/crypto.js')
    BigInt = require('../vendor/bigint.js')
    EventEmitter = require('../vendor/eventemitter.js')
    CONST = require('./const.js')
    HLP = require('./helpers.js')
  } else {
    root.OTR.SM = SM
    CryptoJS = root.CryptoJS
    BigInt = root.BigInt
    EventEmitter = root.EventEmitter
    CONST = root.OTR.CONST
    HLP = root.OTR.HLP
  }

  // diffie-hellman modulus and generator
  // see group 5, RFC 3526
  var G = BigInt.str2bigInt(CONST.G, 10)
  var N = BigInt.str2bigInt(CONST.N, 16)
  var N_MINUS_2 = BigInt.sub(N, BigInt.str2bigInt('2', 10))

  // to calculate D's for zero-knowledge proofs
  var Q = BigInt.sub(N, BigInt.str2bigInt('1', 10))
  BigInt.divInt_(Q, 2)  // meh

  function SM(reqs) {
    if (!(this instanceof SM)) return new SM(reqs)

    this.version = 1

    this.our_fp = reqs.our_fp
    this.their_fp = reqs.their_fp
    this.ssid = reqs.ssid

    this.debug = !!reqs.debug

    // initial state
    this.init()
  }

  // inherit from EE
  HLP.extend(SM, EventEmitter)

  // set the initial values
  // also used when aborting
  SM.prototype.init = function () {
    this.smpstate = CONST.SMPSTATE_EXPECT1
    this.secret = null
  }

  SM.prototype.makeSecret = function (our, secret) {
    var sha256 = CryptoJS.algo.SHA256.create()
    sha256.update(CryptoJS.enc.Latin1.parse(HLP.packBytes(this.version, 1)))
    sha256.update(CryptoJS.enc.Hex.parse(our ? this.our_fp : this.their_fp))
    sha256.update(CryptoJS.enc.Hex.parse(our ? this.their_fp : this.our_fp))
    sha256.update(CryptoJS.enc.Latin1.parse(this.ssid))
    sha256.update(CryptoJS.enc.Latin1.parse(secret))
    var hash = sha256.finalize()
    this.secret = HLP.bits2bigInt(hash.toString(CryptoJS.enc.Latin1))
  }

  SM.prototype.makeG2s = function () {
    this.a2 = HLP.randomExponent()
    this.a3 = HLP.randomExponent()
    this.g2a = BigInt.powMod(G, this.a2, N)
    this.g3a = BigInt.powMod(G, this.a3, N)
    if ( !HLP.checkGroup(this.g2a, N_MINUS_2) ||
         !HLP.checkGroup(this.g3a, N_MINUS_2)
    ) this.makeG2s()
  }

  SM.prototype.computeGs = function (g2a, g3a) {
    this.g2 = BigInt.powMod(g2a, this.a2, N)
    this.g3 = BigInt.powMod(g3a, this.a3, N)
  }

  SM.prototype.computePQ = function (r) {
    this.p = BigInt.powMod(this.g3, r, N)
    this.q = HLP.multPowMod(G, r, this.g2, this.secret, N)
  }

  SM.prototype.computeR = function () {
    this.r = BigInt.powMod(this.QoQ, this.a3, N)
  }

  SM.prototype.computeRab = function (r) {
    return BigInt.powMod(r, this.a3, N)
  }

  SM.prototype.computeC = function (v, r) {
    return HLP.smpHash(v, BigInt.powMod(G, r, N))
  }

  SM.prototype.computeD = function (r, a, c) {
    return BigInt.subMod(r, BigInt.multMod(a, c, Q), Q)
  }

  // the bulk of the work
  SM.prototype.handleSM = function (msg) {
    var send, r2, r3, r7, t1, t2, t3, t4, rab, tmp2, cR, d7, ms, trust

    var expectStates = {
        2: CONST.SMPSTATE_EXPECT1
      , 3: CONST.SMPSTATE_EXPECT2
      , 4: CONST.SMPSTATE_EXPECT3
      , 5: CONST.SMPSTATE_EXPECT4
      , 7: CONST.SMPSTATE_EXPECT1
    }

    if (msg.type === 6) {
      this.init()
      this.trigger('abort')
      return
    }

    // abort! there was an error
    if (this.smpstate !== expectStates[msg.type])
      return this.abort()

    switch (this.smpstate) {

      case CONST.SMPSTATE_EXPECT1:
        HLP.debug.call(this, 'smp tlv 2')

        // user specified question
        var ind, question
        if (msg.type === 7) {
          ind = msg.msg.indexOf('\x00')
          question = msg.msg.substring(0, ind)
          msg.msg = msg.msg.substring(ind + 1)
        }

        // 0:g2a, 1:c2, 2:d2, 3:g3a, 4:c3, 5:d3
        ms = HLP.readLen(msg.msg.substr(0, 4))
        if (ms !== 6) return this.abort()
        msg = HLP.unpackMPIs(6, msg.msg.substring(4))

        if ( !HLP.checkGroup(msg[0], N_MINUS_2) ||
             !HLP.checkGroup(msg[3], N_MINUS_2)
        ) return this.abort()

        // verify znp's
        if (!HLP.ZKP(1, msg[1], HLP.multPowMod(G, msg[2], msg[0], msg[1], N)))
          return this.abort()

        if (!HLP.ZKP(2, msg[4], HLP.multPowMod(G, msg[5], msg[3], msg[4], N)))
          return this.abort()

        this.g3ao = msg[3]  // save for later

        this.makeG2s()

        // zero-knowledge proof that the exponents
        // associated with g2a & g3a are known
        r2 = HLP.randomExponent()
        r3 = HLP.randomExponent()
        this.c2 = this.computeC(3, r2)
        this.c3 = this.computeC(4, r3)
        this.d2 = this.computeD(r2, this.a2, this.c2)
        this.d3 = this.computeD(r3, this.a3, this.c3)

        this.computeGs(msg[0], msg[3])

        this.smpstate = CONST.SMPSTATE_EXPECT0

        if (question) {
          // assume utf8 question
          question = CryptoJS.enc.Latin1
            .parse(question)
            .toString(CryptoJS.enc.Utf8)
        }

        // invoke question
        this.trigger('question', [question])
        return

      case CONST.SMPSTATE_EXPECT2:
        HLP.debug.call(this, 'smp tlv 3')

        // 0:g2a, 1:c2, 2:d2, 3:g3a, 4:c3, 5:d3, 6:p, 7:q, 8:cP, 9:d5, 10:d6
        ms = HLP.readLen(msg.msg.substr(0, 4))
        if (ms !== 11) return this.abort()
        msg = HLP.unpackMPIs(11, msg.msg.substring(4))

        if ( !HLP.checkGroup(msg[0], N_MINUS_2) ||
             !HLP.checkGroup(msg[3], N_MINUS_2) ||
             !HLP.checkGroup(msg[6], N_MINUS_2) ||
             !HLP.checkGroup(msg[7], N_MINUS_2)
        ) return this.abort()

        // verify znp of c3 / c3
        if (!HLP.ZKP(3, msg[1], HLP.multPowMod(G, msg[2], msg[0], msg[1], N)))
          return this.abort()

        if (!HLP.ZKP(4, msg[4], HLP.multPowMod(G, msg[5], msg[3], msg[4], N)))
          return this.abort()

        this.g3ao = msg[3]  // save for later

        this.computeGs(msg[0], msg[3])

        // verify znp of cP
        t1 = HLP.multPowMod(this.g3, msg[9], msg[6], msg[8], N)
        t2 = HLP.multPowMod(G, msg[9], this.g2, msg[10], N)
        t2 = BigInt.multMod(t2, BigInt.powMod(msg[7], msg[8], N), N)

        if (!HLP.ZKP(5, msg[8], t1, t2))
          return this.abort()

        var r4 = HLP.randomExponent()
        this.computePQ(r4)

        // zero-knowledge proof that P & Q
        // were generated according to the protocol
        var r5 = HLP.randomExponent()
        var r6 = HLP.randomExponent()
        var tmp = HLP.multPowMod(G, r5, this.g2, r6, N)
        var cP = HLP.smpHash(6, BigInt.powMod(this.g3, r5, N), tmp)
        var d5 = this.computeD(r5, r4, cP)
        var d6 = this.computeD(r6, this.secret, cP)

        // store these
        this.QoQ = BigInt.divMod(this.q, msg[7], N)
        this.PoP = BigInt.divMod(this.p, msg[6], N)

        this.computeR()

        // zero-knowledge proof that R
        // was generated according to the protocol
        r7 = HLP.randomExponent()
        tmp2 = BigInt.powMod(this.QoQ, r7, N)
        cR = HLP.smpHash(7, BigInt.powMod(G, r7, N), tmp2)
        d7 = this.computeD(r7, this.a3, cR)

        this.smpstate = CONST.SMPSTATE_EXPECT4

        send = HLP.packINT(8) + HLP.packMPIs([
            this.p
          , this.q
          , cP
          , d5
          , d6
          , this.r
          , cR
          , d7
        ])

        // TLV
        send = HLP.packTLV(4, send)
        break

      case CONST.SMPSTATE_EXPECT3:
        HLP.debug.call(this, 'smp tlv 4')

        // 0:p, 1:q, 2:cP, 3:d5, 4:d6, 5:r, 6:cR, 7:d7
        ms = HLP.readLen(msg.msg.substr(0, 4))
        if (ms !== 8) return this.abort()
        msg = HLP.unpackMPIs(8, msg.msg.substring(4))

        if ( !HLP.checkGroup(msg[0], N_MINUS_2) ||
             !HLP.checkGroup(msg[1], N_MINUS_2) ||
             !HLP.checkGroup(msg[5], N_MINUS_2)
        ) return this.abort()

        // verify znp of cP
        t1 = HLP.multPowMod(this.g3, msg[3], msg[0], msg[2], N)
        t2 = HLP.multPowMod(G, msg[3], this.g2, msg[4], N)
        t2 = BigInt.multMod(t2, BigInt.powMod(msg[1], msg[2], N), N)

        if (!HLP.ZKP(6, msg[2], t1, t2))
          return this.abort()

        // verify znp of cR
        t3 = HLP.multPowMod(G, msg[7], this.g3ao, msg[6], N)
        this.QoQ = BigInt.divMod(msg[1], this.q, N)  // save Q over Q
        t4 = HLP.multPowMod(this.QoQ, msg[7], msg[5], msg[6], N)

        if (!HLP.ZKP(7, msg[6], t3, t4))
          return this.abort()

        this.computeR()

        // zero-knowledge proof that R
        // was generated according to the protocol
        r7 = HLP.randomExponent()
        tmp2 = BigInt.powMod(this.QoQ, r7, N)
        cR = HLP.smpHash(8, BigInt.powMod(G, r7, N), tmp2)
        d7 = this.computeD(r7, this.a3, cR)

        send = HLP.packINT(3) + HLP.packMPIs([ this.r, cR, d7 ])
        send = HLP.packTLV(5, send)

        rab = this.computeRab(msg[5])
        trust = !!BigInt.equals(rab, BigInt.divMod(msg[0], this.p, N))

        this.trigger('trust', [trust, 'answered'])
        this.init()
        break

      case CONST.SMPSTATE_EXPECT4:
        HLP.debug.call(this, 'smp tlv 5')

        // 0:r, 1:cR, 2:d7
        ms = HLP.readLen(msg.msg.substr(0, 4))
        if (ms !== 3) return this.abort()
        msg = HLP.unpackMPIs(3, msg.msg.substring(4))

        if (!HLP.checkGroup(msg[0], N_MINUS_2)) return this.abort()

        // verify znp of cR
        t3 = HLP.multPowMod(G, msg[2], this.g3ao, msg[1], N)
        t4 = HLP.multPowMod(this.QoQ, msg[2], msg[0], msg[1], N)
        if (!HLP.ZKP(8, msg[1], t3, t4))
          return this.abort()

        rab = this.computeRab(msg[0])
        trust = !!BigInt.equals(rab, this.PoP)

        this.trigger('trust', [trust, 'asked'])
        this.init()
        return

    }

    this.sendMsg(send)
  }

  // send a message
  SM.prototype.sendMsg = function (send) {
    this.trigger('send', [this.ssid, '\x00' + send])
  }

  SM.prototype.rcvSecret = function (secret, question) {
    HLP.debug.call(this, 'receive secret')

    var fn, our = false
    if (this.smpstate === CONST.SMPSTATE_EXPECT0) {
      fn = this.answer
    } else {
      fn = this.initiate
      our = true
    }

    this.makeSecret(our, secret)
    fn.call(this, question)
  }

  SM.prototype.answer = function () {
    HLP.debug.call(this, 'smp answer')

    var r4 = HLP.randomExponent()
    this.computePQ(r4)

    // zero-knowledge proof that P & Q
    // were generated according to the protocol
    var r5 = HLP.randomExponent()
    var r6 = HLP.randomExponent()
    var tmp = HLP.multPowMod(G, r5, this.g2, r6, N)
    var cP = HLP.smpHash(5, BigInt.powMod(this.g3, r5, N), tmp)
    var d5 = this.computeD(r5, r4, cP)
    var d6 = this.computeD(r6, this.secret, cP)

    this.smpstate = CONST.SMPSTATE_EXPECT3

    var send = HLP.packINT(11) + HLP.packMPIs([
        this.g2a
      , this.c2
      , this.d2
      , this.g3a
      , this.c3
      , this.d3
      , this.p
      , this.q
      , cP
      , d5
      , d6
    ])

    this.sendMsg(HLP.packTLV(3, send))
  }

  SM.prototype.initiate = function (question) {
    HLP.debug.call(this, 'smp initiate')

    if (this.smpstate !== CONST.SMPSTATE_EXPECT1)
      this.abort()  // abort + restart

    this.makeG2s()

    // zero-knowledge proof that the exponents
    // associated with g2a & g3a are known
    var r2 = HLP.randomExponent()
    var r3 = HLP.randomExponent()
    this.c2 = this.computeC(1, r2)
    this.c3 = this.computeC(2, r3)
    this.d2 = this.computeD(r2, this.a2, this.c2)
    this.d3 = this.computeD(r3, this.a3, this.c3)

    // set the next expected state
    this.smpstate = CONST.SMPSTATE_EXPECT2

    var send = ''
    var type = 2

    if (question) {
      send += question
      send += '\x00'
      type = 7
    }

    send += HLP.packINT(6) + HLP.packMPIs([
        this.g2a
      , this.c2
      , this.d2
      , this.g3a
      , this.c3
      , this.d3
    ])

    this.sendMsg(HLP.packTLV(type, send))
  }

  SM.prototype.abort = function () {
    this.init()
    this.sendMsg(HLP.packTLV(6, ''))
    this.trigger('abort')
  }

}).call(this)
;(function () {
  "use strict";

  var root = this

  var CryptoJS, BigInt, EventEmitter, Worker, SMWPath
    , CONST, HLP, Parse, AKE, SM, DSA
  if (typeof module !== 'undefined' && module.exports) {
    module.exports = OTR
    CryptoJS = require('../vendor/crypto.js')
    BigInt = require('../vendor/bigint.js')
    EventEmitter = require('../vendor/eventemitter.js')
    SMWPath = require('path').join(__dirname, '/sm-webworker.js')
    CONST = require('./const.js')
    HLP = require('./helpers.js')
    Parse = require('./parse.js')
    AKE = require('./ake.js')
    SM = require('./sm.js')
    DSA = require('./dsa.js')
    // expose CONST for consistency with docs
    OTR.CONST = CONST
  } else {
    // copy over and expose internals
    Object.keys(root.OTR).forEach(function (k) {
      OTR[k] = root.OTR[k]
    })
    root.OTR = OTR
    CryptoJS = root.CryptoJS
    BigInt = root.BigInt
    EventEmitter = root.EventEmitter
    Worker = root.Worker
    SMWPath = 'sm-webworker.js'
    CONST = OTR.CONST
    HLP = OTR.HLP
    Parse = OTR.Parse
    AKE = OTR.AKE
    SM = OTR.SM
    DSA = root.DSA
  }

  // diffie-hellman modulus and generator
  // see group 5, RFC 3526
  var G = BigInt.str2bigInt(CONST.G, 10)
  var N = BigInt.str2bigInt(CONST.N, 16)

  // JavaScript integers
  var MAX_INT = Math.pow(2, 53) - 1  // doubles
  var MAX_UINT = Math.pow(2, 31) - 1  // bitwise operators

  // an internal callback
  function OTRCB(cb) {
    this.cb = cb
  }

  // OTR contructor
  function OTR(options) {
    if (!(this instanceof OTR)) return new OTR(options)

    // options
    options = options || {}

    // private keys
    if (options.priv && !(options.priv instanceof DSA))
      throw new Error('Requires long-lived DSA key.')

    this.priv = options.priv ? options.priv : new DSA()

    this.fragment_size = options.fragment_size || 0
    if (this.fragment_size < 0)
      throw new Error('Fragment size must be a positive integer.')

    this.send_interval = options.send_interval || 0
    if (this.send_interval < 0)
      throw new Error('Send interval must be a positive integer.')

    this.outgoing = []

    // instance tag
    this.our_instance_tag = options.instance_tag || OTR.makeInstanceTag()

    // debug
    this.debug = !!options.debug

    // smp in webworker options
    // this is still experimental and undocumented
    this.smw = options.smw

    // init vals
    this.init()

    // bind methods
    var self = this
    ;['sendMsg', 'receiveMsg'].forEach(function (meth) {
      self[meth] = self[meth].bind(self)
    })

    EventEmitter.call(this)
  }

  // inherit from EE
  HLP.extend(OTR, EventEmitter)

  // add to prototype
  OTR.prototype.init = function () {

    this.msgstate = CONST.MSGSTATE_PLAINTEXT
    this.authstate = CONST.AUTHSTATE_NONE

    this.ALLOW_V2 = true
    this.ALLOW_V3 = true

    this.REQUIRE_ENCRYPTION = false
    this.SEND_WHITESPACE_TAG = false
    this.WHITESPACE_START_AKE = false
    this.ERROR_START_AKE = false

    Parse.initFragment(this)

    // their keys
    this.their_y = null
    this.their_old_y = null
    this.their_keyid = 0
    this.their_priv_pk = null
    this.their_instance_tag = '\x00\x00\x00\x00'

    // our keys
    this.our_dh = this.dh()
    this.our_old_dh = this.dh()
    this.our_keyid = 2

    // session keys
    this.sessKeys = [ new Array(2), new Array(2) ]

    // saved
    this.storedMgs = []
    this.oldMacKeys = []

    // smp
    this.sm = null  // initialized after AKE

    // when ake is complete
    // save their keys and the session
    this._akeInit()

    // receive plaintext message since switching to plaintext
    // used to decide when to stop sending pt tags when SEND_WHITESPACE_TAG
    this.receivedPlaintext = false

  }

  OTR.prototype._akeInit = function () {
    this.ake = new AKE(this)
    this.transmittedRS = false
    this.ssid = null
  }

  // smp over webworker
  OTR.prototype._SMW = function (otr, reqs) {
    this.otr = otr
    var opts = {
        path: SMWPath
      , seed: BigInt.getSeed
    }
    if (typeof otr.smw === 'object')
      Object.keys(otr.smw).forEach(function (k) {
        opts[k] = otr.smw[k]
      })

    // load optional dep. in node
    if (typeof module !== 'undefined' && module.exports)
      Worker = require('webworker-threads').Worker

    this.worker = new Worker(opts.path)
    var self = this
    this.worker.onmessage = function (e) {
      var d = e.data
      if (!d) return
      self.trigger(d.method, d.args)
    }
    this.worker.postMessage({
        type: 'seed'
      , seed: opts.seed()
      , imports: opts.imports
    })
    this.worker.postMessage({
        type: 'init'
      , reqs: reqs
    })
  }

  // inherit from EE
  HLP.extend(OTR.prototype._SMW, EventEmitter)

  // shim sm methods
  ;['handleSM', 'rcvSecret', 'abort'].forEach(function (m) {
    OTR.prototype._SMW.prototype[m] = function () {
      this.worker.postMessage({
          type: 'method'
        , method: m
        , args: Array.prototype.slice.call(arguments, 0)
      })
    }
  })

  OTR.prototype._smInit = function () {
    var reqs = {
        ssid: this.ssid
      , our_fp: this.priv.fingerprint()
      , their_fp: this.their_priv_pk.fingerprint()
      , debug: this.debug
    }
    if (this.smw) {
      if (this.sm) this.sm.worker.terminate()  // destroy prev webworker
      this.sm = new this._SMW(this, reqs)
    } else {
      this.sm = new SM(reqs)
    }
    var self = this
    ;['trust', 'abort', 'question'].forEach(function (e) {
      self.sm.on(e, function () {
        self.trigger('smp', [e].concat(Array.prototype.slice.call(arguments)))
      })
    })
    this.sm.on('send', function (ssid, send) {
      if (self.ssid === ssid) {
        send = self.prepareMsg(send)
        self.io(send)
      }
    })
  }

  OTR.prototype.io = function (msg, meta) {

    // buffer
    msg = ([].concat(msg)).map(function(m, i, arr) {
       var obj = { msg: m }
       if (!(meta instanceof OTRCB) ||
         i === (arr.length - 1)  // only cb after last fragment is sent
       ) obj.meta = meta
       return obj
    })
    this.outgoing = this.outgoing.concat(msg)

    var self = this
    ;(function send(first) {
      if (!first) {
        if (!self.outgoing.length) return
        var elem = self.outgoing.shift(), cb = null
        if (elem.meta instanceof OTRCB) {
          cb = elem.meta.cb
          elem.meta = null
        }
        self.trigger('io', [elem.msg, elem.meta])
        if (cb) cb()
      }
      setTimeout(send, first ? 0 : self.send_interval)
    }(true))

  }

  OTR.prototype.dh = function dh() {
    var keys = { privateKey: BigInt.randBigInt(320) }
    keys.publicKey = BigInt.powMod(G, keys.privateKey, N)
    return keys
  }

  // session constructor
  OTR.prototype.DHSession = function DHSession(our_dh, their_y) {
    if (!(this instanceof DHSession)) return new DHSession(our_dh, their_y)

    // shared secret
    var s = BigInt.powMod(their_y, our_dh.privateKey, N)
    var secbytes = HLP.packMPI(s)

    // session id
    this.id = HLP.mask(HLP.h2('\x00', secbytes), 0, 64)  // first 64-bits

    // are we the high or low end of the connection?
    var sq = BigInt.greater(our_dh.publicKey, their_y)
    var sendbyte = sq ? '\x01' : '\x02'
    var rcvbyte  = sq ? '\x02' : '\x01'

    // sending and receiving keys
    this.sendenc = HLP.mask(HLP.h1(sendbyte, secbytes), 0, 128)  // f16 bytes
    this.sendmac = CryptoJS.SHA1(CryptoJS.enc.Latin1.parse(this.sendenc))
    this.sendmac = this.sendmac.toString(CryptoJS.enc.Latin1)

    this.rcvenc = HLP.mask(HLP.h1(rcvbyte, secbytes), 0, 128)
    this.rcvmac = CryptoJS.SHA1(CryptoJS.enc.Latin1.parse(this.rcvenc))
    this.rcvmac = this.rcvmac.toString(CryptoJS.enc.Latin1)
    this.rcvmacused = false

    // extra symmetric key
    this.extra_symkey = HLP.h2('\xff', secbytes)

    // counters
    this.send_counter = 0
    this.rcv_counter = 0
  }

  OTR.prototype.rotateOurKeys = function () {

    // reveal old mac keys
    var self = this
    this.sessKeys[1].forEach(function (sk) {
      if (sk && sk.rcvmacused) self.oldMacKeys.push(sk.rcvmac)
    })

    // rotate our keys
    this.our_old_dh = this.our_dh
    this.our_dh = this.dh()
    this.our_keyid += 1

    this.sessKeys[1][0] = this.sessKeys[0][0]
    this.sessKeys[1][1] = this.sessKeys[0][1]
    this.sessKeys[0] = [
        this.their_y ?
            new this.DHSession(this.our_dh, this.their_y) : null
      , this.their_old_y ?
            new this.DHSession(this.our_dh, this.their_old_y) : null
    ]

  }

  OTR.prototype.rotateTheirKeys = function (their_y) {

    // increment their keyid
    this.their_keyid += 1

    // reveal old mac keys
    var self = this
    this.sessKeys.forEach(function (sk) {
      if (sk[1] && sk[1].rcvmacused) self.oldMacKeys.push(sk[1].rcvmac)
    })

    // rotate their keys / session
    this.their_old_y = this.their_y
    this.sessKeys[0][1] = this.sessKeys[0][0]
    this.sessKeys[1][1] = this.sessKeys[1][0]

    // new keys / sessions
    this.their_y = their_y
    this.sessKeys[0][0] = new this.DHSession(this.our_dh, this.their_y)
    this.sessKeys[1][0] = new this.DHSession(this.our_old_dh, this.their_y)

  }

  OTR.prototype.prepareMsg = function (msg, esk) {
    if (this.msgstate !== CONST.MSGSTATE_ENCRYPTED || this.their_keyid === 0)
      return this.notify('Not ready to encrypt.')

    var sessKeys = this.sessKeys[1][0]

    if (sessKeys.send_counter >= MAX_INT)
      return this.notify('Should have rekeyed by now.')

    sessKeys.send_counter += 1

    var ctr = HLP.packCtr(sessKeys.send_counter)

    var send = this.ake.otr_version + '\x03'  // version and type
    var v3 = (this.ake.otr_version === CONST.OTR_VERSION_3)

    if (v3) {
      send += this.our_instance_tag
      send += this.their_instance_tag
    }

    send += '\x00'  // flag
    send += HLP.packINT(this.our_keyid - 1)
    send += HLP.packINT(this.their_keyid)
    send += HLP.packMPI(this.our_dh.publicKey)
    send += ctr.substring(0, 8)

    if (Math.ceil(msg.length / 8) >= MAX_UINT)  // * 16 / 128
      return this.notify('Message is too long.')

    var aes = HLP.encryptAes(
        CryptoJS.enc.Latin1.parse(msg)
      , sessKeys.sendenc
      , ctr
    )

    send += HLP.packData(aes)
    send += HLP.make1Mac(send, sessKeys.sendmac)
    send += HLP.packData(this.oldMacKeys.splice(0).join(''))

    send = HLP.wrapMsg(
        send
      , this.fragment_size
      , v3
      , this.our_instance_tag
      , this.their_instance_tag
    )
    if (send[0]) return this.notify(send[0])

    // emit extra symmetric key
    if (esk) this.trigger('file', ['send', sessKeys.extra_symkey, esk])

    return send[1]
  }

  OTR.prototype.handleDataMsg = function (msg) {
    var vt = msg.version + msg.type

    if (this.ake.otr_version === CONST.OTR_VERSION_3)
      vt += msg.instance_tags

    var types = ['BYTE', 'INT', 'INT', 'MPI', 'CTR', 'DATA', 'MAC', 'DATA']
    msg = HLP.splitype(types, msg.msg)

    // ignore flag
    var ign = (msg[0] === '\x01')

    if (this.msgstate !== CONST.MSGSTATE_ENCRYPTED || msg.length !== 8) {
      if (!ign) this.error('Received an unreadable encrypted message.')
      return
    }

    var our_keyid = this.our_keyid - HLP.readLen(msg[2])
    var their_keyid = this.their_keyid - HLP.readLen(msg[1])

    if (our_keyid < 0 || our_keyid > 1) {
      if (!ign) this.error('Not of our latest keys.')
      return
    }

    if (their_keyid < 0 || their_keyid > 1) {
      if (!ign) this.error('Not of your latest keys.')
      return
    }

    var their_y = their_keyid ? this.their_old_y : this.their_y

    if (their_keyid === 1 && !their_y) {
      if (!ign) this.error('Do not have that key.')
      return
    }

    var sessKeys = this.sessKeys[our_keyid][their_keyid]

    var ctr = HLP.unpackCtr(msg[4])
    if (ctr <= sessKeys.rcv_counter) {
      if (!ign) this.error('Counter in message is not larger.')
      return
    }
    sessKeys.rcv_counter = ctr

    // verify mac
    vt += msg.slice(0, 6).join('')
    var vmac = HLP.make1Mac(vt, sessKeys.rcvmac)

    if (!HLP.compare(msg[6], vmac)) {
      if (!ign) this.error('MACs do not match.')
      return
    }
    sessKeys.rcvmacused = true

    var out = HLP.decryptAes(
        msg[5].substring(4)
      , sessKeys.rcvenc
      , HLP.padCtr(msg[4])
    )
    out = out.toString(CryptoJS.enc.Latin1)

    if (!our_keyid) this.rotateOurKeys()
    if (!their_keyid) this.rotateTheirKeys(HLP.readMPI(msg[3]))

    // parse TLVs
    var ind = out.indexOf('\x00')
    if (~ind) {
      this.handleTLVs(out.substring(ind + 1), sessKeys)
      out = out.substring(0, ind)
    }

    out = CryptoJS.enc.Latin1.parse(out)
    return out.toString(CryptoJS.enc.Utf8)
  }

  OTR.prototype.handleTLVs = function (tlvs, sessKeys) {
    var type, len, msg
    for (; tlvs.length; ) {
      type = HLP.unpackSHORT(tlvs.substr(0, 2))
      len = HLP.unpackSHORT(tlvs.substr(2, 2))

      msg = tlvs.substr(4, len)

      // TODO: handle pathological cases better
      if (msg.length < len) break

      switch (type) {
        case 1:
          // Disconnected
          this.msgstate = CONST.MSGSTATE_FINISHED
          this.trigger('status', [CONST.STATUS_END_OTR])
          break
        case 2: case 3: case 4:
        case 5: case 6: case 7:
          // SMP
          if (this.msgstate !== CONST.MSGSTATE_ENCRYPTED) {
            if (this.sm) this.sm.abort()
            return
          }
          if (!this.sm) this._smInit()
          this.sm.handleSM({ msg: msg, type: type })
          break
        case 8:
          // utf8 filenames
          msg = msg.substring(4) // remove 4-byte indication
          msg = CryptoJS.enc.Latin1.parse(msg)
          msg = msg.toString(CryptoJS.enc.Utf8)

          // Extra Symkey
          this.trigger('file', ['receive', sessKeys.extra_symkey, msg])
          break
      }

      tlvs = tlvs.substring(4 + len)
    }
  }

  OTR.prototype.smpSecret = function (secret, question) {
    if (this.msgstate !== CONST.MSGSTATE_ENCRYPTED)
      return this.notify('Must be encrypted for SMP.')

    if (typeof secret !== 'string' || secret.length < 1)
      return this.notify('Secret is required.')

    if (!this.sm) this._smInit()

    // utf8 inputs
    secret = CryptoJS.enc.Utf8.parse(secret).toString(CryptoJS.enc.Latin1)
    if (question)
      question = CryptoJS.enc.Utf8.parse(question).toString(CryptoJS.enc.Latin1)

    this.sm.rcvSecret(secret, question)
  }

  OTR.prototype.sendQueryMsg = function () {
    var versions = {}
      , msg = CONST.OTR_TAG

    if (this.ALLOW_V2) versions['2'] = true
    if (this.ALLOW_V3) versions['3'] = true

    // but we don't allow v1
    // if (versions['1']) msg += '?'

    var vs = Object.keys(versions)
    if (vs.length) {
      msg += 'v'
      vs.forEach(function (v) {
        if (v !== '1') msg += v
      })
      msg += '?'
    }

    this.io(msg)
    this.trigger('status', [CONST.STATUS_SEND_QUERY])
  }

  OTR.prototype.sendMsg = function (msg, meta) {
    if ( this.REQUIRE_ENCRYPTION ||
         this.msgstate !== CONST.MSGSTATE_PLAINTEXT
    ) {
      msg = CryptoJS.enc.Utf8.parse(msg)
      msg = msg.toString(CryptoJS.enc.Latin1)
    }

    switch (this.msgstate) {
      case CONST.MSGSTATE_PLAINTEXT:
        if (this.REQUIRE_ENCRYPTION) {
          this.storedMgs.push({msg: msg, meta: meta})
          this.sendQueryMsg()
          return
        }
        if (this.SEND_WHITESPACE_TAG && !this.receivedPlaintext) {
          msg += CONST.WHITESPACE_TAG  // 16 byte tag
          if (this.ALLOW_V3) msg += CONST.WHITESPACE_TAG_V3
          if (this.ALLOW_V2) msg += CONST.WHITESPACE_TAG_V2
        }
        break
      case CONST.MSGSTATE_FINISHED:
        this.storedMgs.push({msg: msg, meta: meta})
        this.notify('Message cannot be sent at this time.', 'warn')
        return
      case CONST.MSGSTATE_ENCRYPTED:
        msg = this.prepareMsg(msg)
        break
      default:
        throw new Error('Unknown message state.')
    }

    if (msg) this.io(msg, meta)
  }

  OTR.prototype.receiveMsg = function (msg, meta) {

    // parse type
    msg = Parse.parseMsg(this, msg)

    if (!msg) return

    switch (msg.cls) {
      case 'error':
        this.notify(msg.msg)
        return
      case 'ake':
        if ( msg.version === CONST.OTR_VERSION_3 &&
          this.checkInstanceTags(msg.instance_tags)
        ) {
          this.notify(
            'Received a message intended for a different session.', 'warn')
          return  // ignore
        }
        this.ake.handleAKE(msg)
        return
      case 'data':
        if ( msg.version === CONST.OTR_VERSION_3 &&
          this.checkInstanceTags(msg.instance_tags)
        ) {
          this.notify(
            'Received a message intended for a different session.', 'warn')
          return  // ignore
        }
        msg.msg = this.handleDataMsg(msg)
        msg.encrypted = true
        break
      case 'query':
        if (this.msgstate === CONST.MSGSTATE_ENCRYPTED) this._akeInit()
        this.doAKE(msg)
        break
      default:
        // check for encrypted
        if ( this.REQUIRE_ENCRYPTION ||
             this.msgstate !== CONST.MSGSTATE_PLAINTEXT
        ) this.notify('Received an unencrypted message.', 'warn')

        // received a plaintext message
        // stop sending the whitespace tag
        this.receivedPlaintext = true

        // received a whitespace tag
        if (this.WHITESPACE_START_AKE && msg.ver.length > 0)
          this.doAKE(msg)
    }

    if (msg.msg) this.trigger('ui', [msg.msg, !!msg.encrypted, meta])
  }

  OTR.prototype.checkInstanceTags = function (it) {
    var their_it = HLP.readLen(it.substr(0, 4))
    var our_it = HLP.readLen(it.substr(4, 4))

    if (our_it && our_it !== HLP.readLen(this.our_instance_tag))
      return true

    if (HLP.readLen(this.their_instance_tag)) {
      if (HLP.readLen(this.their_instance_tag) !== their_it) return true
    } else {
      if (their_it < 100) return true
      this.their_instance_tag = HLP.packINT(their_it)
    }
  }

  OTR.prototype.doAKE = function (msg) {
    if (this.ALLOW_V3 && ~msg.ver.indexOf(CONST.OTR_VERSION_3)) {
      this.ake.initiateAKE(CONST.OTR_VERSION_3)
    } else if (this.ALLOW_V2 && ~msg.ver.indexOf(CONST.OTR_VERSION_2)) {
      this.ake.initiateAKE(CONST.OTR_VERSION_2)
    } else {
      this.notify('OTR conversation requested, ' +
        'but no compatible protocol version found.', 'warn')
    }
  }

  OTR.prototype.error = function (err) {
    if (!this.debug) err = 'An OTR error has occurred.'
    this.io('?OTR Error:' + err)
    this.notify(err)
  }

  OTR.prototype.notify = function (err, severity) {
    this.trigger('error', [err, severity || 'error'])
  }

  OTR.prototype.sendStored = function () {
    var self = this
    ;(this.storedMgs.splice(0)).forEach(function (elem) {
      var msg = self.prepareMsg(elem.msg)
      self.io(msg, elem.meta)
    })
  }

  OTR.prototype.sendFile = function (filename) {
    if (this.msgstate !== CONST.MSGSTATE_ENCRYPTED)
      return this.notify('Not ready to encrypt.')

    if (this.ake.otr_version !== CONST.OTR_VERSION_3)
      return this.notify('Protocol v3 required.')

    if (!filename) return this.notify('Please specify a filename.')

    // utf8 filenames
    var l1name = CryptoJS.enc.Utf8.parse(filename)
    l1name = l1name.toString(CryptoJS.enc.Latin1)

    if (l1name.length >= 65532) return this.notify('Filename is too long.')

    var msg = '\x00'  // null byte
    msg += '\x00\x08'  // type 8 tlv
    msg += HLP.packSHORT(4 + l1name.length)  // length of value
    msg += '\x00\x00\x00\x01'  // four bytes indicating file
    msg += l1name

    msg = this.prepareMsg(msg, filename)
    this.io(msg)
  }

  OTR.prototype.endOtr = function (cb) {
    if (this.msgstate === CONST.MSGSTATE_ENCRYPTED) {
      if (typeof cb === 'function')
        cb = new OTRCB(cb)
      this.sendMsg('\x00\x00\x01\x00\x00', cb)
      if (this.sm) {
        if (this.smw) this.sm.worker.terminate()  // destroy webworker
        this.sm = null
      }
    } else if (typeof cb === 'function')
      setTimeout(cb, 0)

    this.msgstate = CONST.MSGSTATE_PLAINTEXT
    this.receivedPlaintext = false
    this.trigger('status', [CONST.STATUS_END_OTR])
  }

  // attach methods

  OTR.makeInstanceTag = function () {
    var num = BigInt.randBigInt(32)
    if (BigInt.greater(BigInt.str2bigInt('100', 16), num))
      return OTR.makeInstanceTag()
    return HLP.packINT(parseInt(BigInt.bigInt2str(num, 10), 10))
  }

}).call(this)


  return {
      OTR: this.OTR
    , DSA: this.DSA
  }

}));
// Converse.js (A browser based XMPP chat client)
// http://conversejs.org
//
// Copyright (c) 2012-2017, Jan-Carel Brand <jc@opkode.com>
// Licensed under the Mozilla Public License (MPLv2)
//
/*global define, window, crypto, CryptoJS */

/* This is a Converse.js plugin which add support Off-the-record (OTR)
 * encryption of one-on-one chat messages.
 */
(function (root, factory) {

    define('converse-otr',["converse-chatview",
            "tpl!toolbar_otr",
            'otr'
    ], factory);
}(this, function (converse, tpl_toolbar_otr, otr) {
    "use strict";

    // Strophe methods for building stanzas
    var Strophe = converse.env.Strophe,
        utils = converse.env.utils,
        b64_sha1 = converse.env.b64_sha1;
    // Other necessary globals
    var $ = converse.env.jQuery,
        _ = converse.env._;

    var HAS_CSPRNG = ((!_.isUndefined(crypto)) &&
        ((_.isFunction(crypto.randomBytes)) || (_.isFunction(crypto.getRandomValues))
    ));

    var HAS_CRYPTO = HAS_CSPRNG && (
        (!_.isUndefined(otr.OTR)) &&
        (!_.isUndefined(otr.DSA))
    );

    var UNENCRYPTED = 0;
    var UNVERIFIED= 1;
    var VERIFIED= 2;
    var FINISHED = 3;

    var OTR_TRANSLATED_MAPPING  = {}; // Populated in initialize
    var OTR_CLASS_MAPPING = {};
    OTR_CLASS_MAPPING[UNENCRYPTED] = 'unencrypted';
    OTR_CLASS_MAPPING[UNVERIFIED] = 'unverified';
    OTR_CLASS_MAPPING[VERIFIED] = 'verified';
    OTR_CLASS_MAPPING[FINISHED] = 'finished';

    converse.plugins.add('converse-otr', {

        overrides: {
            // Overrides mentioned here will be picked up by converse.js's
            // plugin architecture they will replace existing methods on the
            // relevant objects or classes.
            //
            // New functions which don't exist yet can also be added.
 
            registerGlobalEventHandlers: function () {
                this.__super__.registerGlobalEventHandlers();
                $(document).click(function () {
                    if ($('.toggle-otr ul').is(':visible')) {
                        $('.toggle-otr ul', this).slideUp();
                    }
                    if ($('.toggle-smiley ul').is(':visible')) {
                        $('.toggle-smiley ul', this).slideUp();
                    }
                });
            },

            ChatBox: {
                initialize: function () {
                    this.__super__.initialize.apply(this, arguments);
                    if (this.get('box_id') !== 'controlbox') {
                        this.save({'otr_status': this.get('otr_status') || UNENCRYPTED});
                    }
                },

                shouldPlayNotification: function ($message) {
                    /* Don't play a notification if this is an OTR message but
                     * encryption is not yet set up. That would mean that the
                     * OTR session is still being established, so there are no
                     * "visible" OTR messages being exchanged.
                     */
                    return this.__super__.shouldPlayNotification.apply(this, arguments) &&
                        !(utils.isOTRMessage($message[0]) && !_.includes([UNVERIFIED, VERIFIED], this.get('otr_status')));
                },

                createMessage: function (message, delay, original_stanza) {
                    var _converse = this.__super__._converse,
                        text = _.propertyOf(message.querySelector('body'))('textContent');

                    if ((!text) || (!_converse.allow_otr)) {
                        return this.__super__.createMessage.apply(this, arguments);
                    }
                    if (text.match(/^\?OTRv23?/)) {
                        this.initiateOTR(text);
                    } else {
                        if (_.includes([UNVERIFIED, VERIFIED], this.get('otr_status'))) {
                            this.otr.receiveMsg(text);
                        } else {
                            if (text.match(/^\?OTR/)) {
                                if (!this.otr) {
                                    this.initiateOTR(text);
                                } else {
                                    this.otr.receiveMsg(text);
                                }
                            } else {
                                // Normal unencrypted message.
                                return this.__super__.createMessage.apply(this, arguments);
                            }
                        }
                    }
                },

                generatePrivateKey: function (instance_tag) {
                    var _converse = this.__super__._converse;
                    var key = new otr.DSA();
                    var jid = _converse.connection.jid;
                    if (_converse.cache_otr_key) {
                        this.save({
                            'otr_priv_key': key.packPrivate(),
                            'otr_instance_tag': instance_tag
                        });
                    }
                    return key;
                },
                
                getSession: function (callback) {
                    var _converse = this.__super__._converse,
                        __ = _converse.__;
                    var instance_tag, saved_key, encrypted_key;
                    if (_converse.cache_otr_key) {
                        encrypted_key = this.get('otr_priv_key');
                        if (_.isString(encrypted_key)) {
                            instance_tag = this.get('otr_instance_tag');
                            saved_key = otr.DSA.parsePrivate(encrypted_key)
                            if (saved_key && instance_tag) {
                                this.trigger('showHelpMessages', [__('Re-establishing encrypted session')]);
                                callback({
                                    'key': saved_key,
                                    'instance_tag': instance_tag
                                });
                                return; // Our work is done here
                            }
                        }
                    }
                    // We need to generate a new key and instance tag
                    this.trigger('showHelpMessages', [
                        __('Generating private key.'),
                        __('Your browser might become unresponsive.')],
                        null,
                        true // show spinner
                    );
                    var that = this;
                    window.setTimeout(function () {
                        callback({
                            'key': that.generatePrivateKey(instance_tag),
                            'instance_tag': otr.OTR.makeInstanceTag()
                        });
                    }, 500);
                },

                updateOTRStatus: function (state) {
                    switch (state) {
                        case otr.OTR.CONST.STATUS_AKE_SUCCESS:
                            if (this.otr.msgstate === otr.OTR.CONST.MSGSTATE_ENCRYPTED) {
                                this.save({'otr_status': UNVERIFIED});
                            }
                            break;
                        case otr.OTR.CONST.STATUS_END_OTR:
                            if (this.otr.msgstate === otr.OTR.CONST.MSGSTATE_FINISHED) {
                                this.save({'otr_status': FINISHED});
                            } else if (this.otr.msgstate === otr.OTR.CONST.MSGSTATE_PLAINTEXT) {
                                this.save({'otr_status': UNENCRYPTED});
                            }
                            break;
                    }
                },

                onSMP: function (type, data) {
                    // Event handler for SMP (Socialist's Millionaire Protocol)
                    // used by OTR (off-the-record).
                    var _converse = this.__super__._converse,
                        __ = _converse.__;
                    switch (type) {
                        case 'question':
                            this.otr.smpSecret(prompt(__(
                                'Authentication request from %1$s\n\nYour chat contact is attempting to verify your identity, by asking you the question below.\n\n%2$s',
                                [this.get('fullname'), data])));
                            break;
                        case 'trust':
                            if (data === true) {
                                this.save({'otr_status': VERIFIED});
                            } else {
                                this.trigger(
                                    'showHelpMessages',
                                    [__("Could not verify this user's identify.")],
                                    'error');
                                this.save({'otr_status': UNVERIFIED});
                            }
                            break;
                        default:
                            throw new TypeError('ChatBox.onSMP: Unknown type for SMP');
                    }
                },

                initiateOTR: function (query_msg) {
                    // Sets up an OTR object through which we can send and receive
                    // encrypted messages.
                    //
                    // If 'query_msg' is passed in, it means there is an alread incoming
                    // query message from our contact. Otherwise, it is us who will
                    // send the query message to them.
                    var _converse = this.__super__._converse,
                        __ = _converse.__;
                    this.save({'otr_status': UNENCRYPTED});
                    this.getSession(function (session) {
                        var _converse = this.__super__._converse;
                        this.otr = new otr.OTR({
                            fragment_size: 140,
                            send_interval: 200,
                            priv: session.key,
                            instance_tag: session.instance_tag,
                            debug: this.debug
                        });
                        this.otr.on('status', this.updateOTRStatus.bind(this));
                        this.otr.on('smp', this.onSMP.bind(this));

                        this.otr.on('ui', function (msg) {
                            this.trigger('showReceivedOTRMessage', msg);
                        }.bind(this));
                        this.otr.on('io', function (msg) {
                            this.trigger('sendMessage', new _converse.Message({ message: msg }));
                        }.bind(this));
                        this.otr.on('error', function (msg) {
                            this.trigger('showOTRError', msg);
                        }.bind(this));

                        this.trigger('showHelpMessages', [__('Exchanging private key with contact.')]);
                        if (query_msg) {
                            this.otr.receiveMsg(query_msg);
                        } else {
                            this.otr.sendQueryMsg();
                        }
                    }.bind(this));
                },

                endOTR: function () {
                    if (this.otr) {
                        this.otr.endOtr();
                    }
                    this.save({'otr_status': UNENCRYPTED});
                }
            },

            ChatBoxView:  {
                events: {
                    'click .toggle-otr': 'toggleOTRMenu',
                    'click .start-otr': 'startOTRFromToolbar',
                    'click .end-otr': 'endOTR',
                    'click .auth-otr': 'authOTR'
                },

                initialize: function () {
                    var _converse = this.__super__._converse;
                    this.__super__.initialize.apply(this, arguments);
                    this.model.on('change:otr_status', this.onOTRStatusChanged, this);
                    this.model.on('showOTRError', this.showOTRError, this);
                    this.model.on('showSentOTRMessage', function (text) {
                        this.showMessage({'message': text, 'sender': 'me'});
                    }, this);
                    this.model.on('showReceivedOTRMessage', function (text) {
                        this.showMessage({'message': text, 'sender': 'them'});
                    }, this);
                    if ((_.includes([UNVERIFIED, VERIFIED], this.model.get('otr_status'))) || _converse.use_otr_by_default) {
                        this.model.initiateOTR();
                    }
                },

                createMessageStanza: function () {
                    var stanza = this.__super__.createMessageStanza.apply(this, arguments);
                    if (this.model.get('otr_status') !== UNENCRYPTED || utils.isOTRMessage(stanza.nodeTree)) {
                        // OTR messages aren't carbon copied
                        stanza.c('private', {'xmlns': Strophe.NS.CARBONS}).up()
                              .c('no-store', {'xmlns': Strophe.NS.HINTS}).up()
                              .c('no-permanent-store', {'xmlns': Strophe.NS.HINTS}).up()
                              .c('no-copy', {'xmlns': Strophe.NS.HINTS});
                    }
                    return stanza;
                },

                onMessageSubmitted: function (text) {
                    var _converse = this.__super__._converse;
                    if (!_converse.connection.authenticated) {
                        return this.showHelpMessages(
                            ['Sorry, the connection has been lost, '+
                              'and your message could not be sent'],
                            'error'
                        );
                    }
                    var match = text.replace(/^\s*/, "").match(/^\/(.*)\s*$/);
                    if (match) {
                        if ((_converse.allow_otr) && (match[1] === "endotr")) {
                            return this.endOTR();
                        } else if ((_converse.allow_otr) && (match[1] === "otr")) {
                            return this.model.initiateOTR();
                        }
                    }
                    if (_.includes([UNVERIFIED, VERIFIED], this.model.get('otr_status'))) {
                        // Off-the-record encryption is active
                        this.model.otr.sendMsg(text);
                        this.model.trigger('showSentOTRMessage', text);
                    } else {
                        this.__super__.onMessageSubmitted.apply(this, arguments);
                    }
                },

                onOTRStatusChanged: function () {
                    this.renderToolbar().informOTRChange();
                },

                informOTRChange: function () {
                    var _converse = this.__super__._converse,
                        __ = _converse.__,
                        data = this.model.toJSON(),
                        msgs = [];
                    if (data.otr_status === UNENCRYPTED) {
                        msgs.push(__("Your messages are not encrypted anymore"));
                    } else if (data.otr_status === UNVERIFIED) {
                        msgs.push(__("Your messages are now encrypted but your contact's identity has not been verified."));
                    } else if (data.otr_status === VERIFIED) {
                        msgs.push(__("Your contact's identify has been verified."));
                    } else if (data.otr_status === FINISHED) {
                        msgs.push(__("Your contact has ended encryption on their end, you should do the same."));
                    }
                    return this.showHelpMessages(msgs, 'info', false);
                },

                showOTRError: function (msg) {
                    var _converse = this.__super__._converse,
                        __ = _converse.__;
                    if (msg === 'Message cannot be sent at this time.') {
                        this.showHelpMessages(
                            [__('Your message could not be sent')], 'error');
                    } else if (msg === 'Received an unencrypted message.') {
                        this.showHelpMessages(
                            [__('We received an unencrypted message')], 'error');
                    } else if (msg === 'Received an unreadable encrypted message.') {
                        this.showHelpMessages(
                            [__('We received an unreadable encrypted message')],
                            'error');
                    } else {
                        this.showHelpMessages(['Encryption error occured: '+msg], 'error');
                    }
                    _converse.log("OTR ERROR:"+msg);
                },

                startOTRFromToolbar: function (ev) {
                    $(ev.target).parent().parent().slideUp();
                    ev.stopPropagation();
                    this.model.initiateOTR();
                },

                endOTR: function (ev) {
                    if (!_.isUndefined(ev)) {
                        ev.preventDefault();
                        ev.stopPropagation();
                    }
                    this.model.endOTR();
                },

                authOTR: function (ev) {
                    var _converse = this.__super__._converse,
                        __ = _converse.__,
                        scheme = $(ev.target).data().scheme,
                        result, question, answer;
                    if (scheme === 'fingerprint') {
                        result = confirm(__('Here are the fingerprints, please confirm them with %1$s, outside of this chat.\n\nFingerprint for you, %2$s: %3$s\n\nFingerprint for %1$s: %4$s\n\nIf you have confirmed that the fingerprints match, click OK, otherwise click Cancel.', [
                                this.model.get('fullname'),
                                _converse.xmppstatus.get('fullname')||_converse.bare_jid,
                                this.model.otr.priv.fingerprint(),
                                this.model.otr.their_priv_pk.fingerprint()
                            ]
                        ));
                        if (result === true) {
                            this.model.save({'otr_status': VERIFIED});
                        } else {
                            this.model.save({'otr_status': UNVERIFIED});
                        }
                    } else if (scheme === 'smp') {
                        alert(__('You will be prompted to provide a security question and then an answer to that question.\n\nYour contact will then be prompted the same question and if they type the exact same answer (case sensitive), their identity will be verified.'));
                        question = prompt(__('What is your security question?'));
                        if (question) {
                            answer = prompt(__('What is the answer to the security question?'));
                            this.model.otr.smpSecret(answer, question);
                        }
                    } else {
                        this.showHelpMessages([__('Invalid authentication scheme provided')], 'error');
                    }
                },

                toggleOTRMenu: function (ev) {
                    ev.stopPropagation();
                    this.$el.find('.toggle-otr ul').slideToggle(200);
                },
                
                getOTRTooltip: function () {
                    var _converse = this.__super__._converse,
                        __ = _converse.__,
                        data = this.model.toJSON();
                    if (data.otr_status === UNENCRYPTED) {
                        return __('Your messages are not encrypted. Click here to enable OTR encryption.');
                    } else if (data.otr_status === UNVERIFIED) {
                        return __('Your messages are encrypted, but your contact has not been verified.');
                    } else if (data.otr_status === VERIFIED) {
                        return __('Your messages are encrypted and your contact verified.');
                    } else if (data.otr_status === FINISHED) {
                        return __('Your contact has closed their end of the private session, you should do the same');
                    }
                },

                renderToolbar: function (toolbar, options) {
                    var _converse = this.__super__._converse,
                        __ = _converse.__;
                    if (!_converse.show_toolbar) {
                        return;
                    }
                    var data = this.model.toJSON();
                    options = _.extend(options || {}, {
                        FINISHED: FINISHED,
                        UNENCRYPTED: UNENCRYPTED,
                        UNVERIFIED: UNVERIFIED,
                        VERIFIED: VERIFIED,
                        // FIXME: Leaky abstraction MUC
                        allow_otr: _converse.allow_otr && !this.is_chatroom,
                        label_end_encrypted_conversation: __('End encrypted conversation'),
                        label_refresh_encrypted_conversation: __('Refresh encrypted conversation'),
                        label_start_encrypted_conversation: __('Start encrypted conversation'),
                        label_verify_with_fingerprints: __('Verify with fingerprints'),
                        label_verify_with_smp: __('Verify with SMP'),
                        label_whats_this: __("What\'s this?"),
                        otr_status_class: OTR_CLASS_MAPPING[data.otr_status],
                        otr_tooltip: this.getOTRTooltip(),
                        otr_translated_status: OTR_TRANSLATED_MAPPING[data.otr_status],
                    });
                    this.__super__.renderToolbar.apply(this, arguments);
                    this.$el.find('.chat-toolbar').append(
                            tpl_toolbar_otr(
                                _.extend(this.model.toJSON(), options || {})
                            ));
                    return this;
                }
            }
        },

        initialize: function () {
            /* The initialize function gets called as soon as the plugin is
             * loaded by converse.js's plugin machinery.
             */
            var _converse = this._converse,
                __ = _converse.__;

            this.updateSettings({
                allow_otr: true,
                cache_otr_key: false,
                use_otr_by_default: false
            });

            // Translation aware constants
            // ---------------------------
            // We can only call the __ translation method *after* converse.js
            // has been initialized and with it the i18n machinery. That's why
            // we do it here in the "initialize" method and not at the top of
            // the module.
            OTR_TRANSLATED_MAPPING[UNENCRYPTED] = __('unencrypted');
            OTR_TRANSLATED_MAPPING[UNVERIFIED] = __('unverified');
            OTR_TRANSLATED_MAPPING[VERIFIED] = __('verified');
            OTR_TRANSLATED_MAPPING[FINISHED] = __('finished');

            // Only allow OTR if we have the capability
            _converse.allow_otr = _converse.allow_otr && HAS_CRYPTO;
            // Only use OTR by default if allow OTR is enabled to begin with
            _converse.use_otr_by_default = _converse.use_otr_by_default && _converse.allow_otr;
        }
    });
}));


define('tpl!register_panel', ['lodash'], function(_) {return function(obj) {
obj || (obj = {});
var __t, __p = '', __e = _.escape, __j = Array.prototype.join;
function print() { __p += __j.call(arguments, '') }
with (obj) {
__p += '<form id="converse-register" class="pure-form converse-form">\n    <span class="reg-feedback"></span>\n    <label>' +
__e(label_domain) +
'</label>\n    ';
 if (default_domain) { ;
__p += '\n    	' +
__e(default_domain) +
'\n    ';
 } ;
__p += '\n    ';
 if (!default_domain) { ;
__p += '\n    	<input type="text" name="domain" placeholder="' +
__e(domain_placeholder) +
'">\n        <p class="form-help">' +
__e(help_providers) +
' <a href="' +
__e(href_providers) +
'" class="url" target="_blank" rel="noopener">' +
__e(help_providers_link) +
'</a>.</p>\n        <input class="pure-button button-primary" type="submit" value="' +
__e(label_register) +
'">\n    ';
 } ;
__p += '\n</form>\n';

}
return __p
};});


define('tpl!register_tab', ['lodash'], function(_) {return function(obj) {
obj || (obj = {});
var __t, __p = '', __e = _.escape;
with (obj) {
__p += '<li><a class="s" data-id="register" href="#register">' +
__e(label_register) +
'</a></li>\n';

}
return __p
};});


define('tpl!registration_form', ['lodash'], function(_) {return function(obj) {
obj || (obj = {});
var __t, __p = '', __e = _.escape;
with (obj) {
__p += '<p class="provider-title">' +
__e(domain) +
'</p>\n<a href=\'https://xmpp.net/result.php?domain=' +
__e(domain) +
'&amp;type=client\'>\n    <img class="provider-score" src=\'https://xmpp.net/badge.php?domain=' +
__e(domain) +
'\' alt=\'xmpp.net score\' />\n</a>\n<p class="title">' +
__e(title) +
'</p>\n<p class="instructions">' +
__e(instructions) +
'</p>\n';

}
return __p
};});


define('tpl!registration_request', ['lodash'], function(_) {return function(obj) {
obj || (obj = {});
var __t, __p = '', __e = _.escape, __j = Array.prototype.join;
function print() { __p += __j.call(arguments, '') }
with (obj) {
__p += '<span class="spinner login-submit"></span>\n<p class="info">' +
__e(info_message) +
'</p>\n';
 if (cancel) { ;
__p += '\n	<button class="pure-button button-cancel hor_centered">' +
__e(cancel) +
'</button>\n';
 } ;
__p += '\n';

}
return __p
};});

// Converse.js (A browser based XMPP chat client)
// http://conversejs.org
//
// Copyright (c) 2012-2017, Jan-Carel Brand <jc@opkode.com>
// Licensed under the Mozilla Public License (MPLv2)
//
/*global define */

/* This is a Converse.js plugin which add support for in-band registration
 * as specified in XEP-0077.
 */
(function (root, factory) {
    define('converse-register',["converse-core",
            "tpl!form_username",
            "tpl!register_panel",
            "tpl!register_tab",
            "tpl!registration_form",
            "tpl!registration_request",
            "converse-controlbox"
    ], factory);
}(this, function (
            converse,
            tpl_form_username,
            tpl_register_panel,
            tpl_register_tab,
            tpl_registration_form,
            tpl_registration_request) {

    "use strict";

    // Strophe methods for building stanzas
    var Strophe = converse.env.Strophe,
        Backbone = converse.env.Backbone,
        utils = converse.env.utils,
        $iq = converse.env.$iq;
    // Other necessary globals
    var $ = converse.env.jQuery,
        _ = converse.env._;

    // Add Strophe Namespaces
    Strophe.addNamespace('REGISTER', 'jabber:iq:register');

    // Add Strophe Statuses
    var i = 0;
    _.each(_.keys(Strophe.Status), function (key) {
        i = Math.max(i, Strophe.Status[key]);
    });
    Strophe.Status.REGIFAIL        = i + 1;
    Strophe.Status.REGISTERED      = i + 2;
    Strophe.Status.CONFLICT        = i + 3;
    Strophe.Status.NOTACCEPTABLE   = i + 5;

    converse.plugins.add('converse-register', {

        overrides: {
            // Overrides mentioned here will be picked up by converse.js's
            // plugin architecture they will replace existing methods on the
            // relevant objects or classes.
            //
            // New functions which don't exist yet can also be added.

            ControlBoxView: {

                switchTab: function (ev) {
                    var _converse = this.__super__._converse;
                    var result = this.__super__.switchTab.apply(this, arguments);
                    if (_converse.registration_domain &&
                            ev.target.getAttribute('data-id') === "register" &&
                            !this.model.get('registration_form_rendered')) {
                        this.registerpanel.fetchRegistrationForm(_converse.registration_domain);
                    }
                    return result;
                },

                renderLoginPanel: function () {
                    /* Also render a registration panel, when rendering the
                     * login panel.
                     */
                    this.__super__.renderLoginPanel.apply(this, arguments);
                    var _converse = this.__super__._converse;
                    if (_converse.allow_registration) {
                        this.registerpanel = new _converse.RegisterPanel({
                            '$parent': this.$el.find('.controlbox-panes'),
                            'model': this.model
                        });
                        this.registerpanel.render().$el.addClass('hidden');
                    }
                    return this;
                }
            }
        },

        initialize: function () {
            /* The initialize function gets called as soon as the plugin is
             * loaded by converse.js's plugin machinery.
             */
            var _converse = this._converse,
                __ = _converse.__;

            // Add new templates
            _converse.templates.form_username = tpl_form_username;
            _converse.templates.register_panel = tpl_register_panel;
            _converse.templates.register_tab = tpl_register_tab;
            _converse.templates.registration_form = tpl_registration_form;
            _converse.templates.registration_request = tpl_registration_request;

            this.updateSettings({
                allow_registration: true,
                domain_placeholder: __(" e.g. conversejs.org"),  // Placeholder text shown in the domain input on the registration form
                providers_link: 'https://xmpp.net/directory.php', // Link to XMPP providers shown on registration page
            });

            _converse.RegisterPanel = Backbone.View.extend({
                tagName: 'div',
                id: "register",
                className: 'controlbox-pane',
                events: {
                    'submit form#converse-register': 'onProviderChosen'
                },

                initialize: function (cfg) {
                    this.reset();
                    this.$parent = cfg.$parent;
                    this.$tabs = cfg.$parent.parent().find('#controlbox-tabs');
                    this.registerHooks();
                },

                render: function () {
                    this.model.set('registration_form_rendered', false);
                    this.$parent.append(this.$el.html(
                        tpl_register_panel({
                            'default_domain': _converse.registration_domain,
                            'label_domain': __("Your XMPP provider's domain name:"),
                            'label_register': __('Fetch registration form'),
                            'help_providers': __('Tip: A list of public XMPP providers is available'),
                            'help_providers_link': __('here'),
                            'href_providers': _converse.providers_link,
                            'domain_placeholder': _converse.domain_placeholder
                        })
                    ));
                    this.$tabs.append(tpl_register_tab({label_register: __('Register')}));
                    return this;
                },

                registerHooks: function () {
                    /* Hook into Strophe's _connect_cb, so that we can send an IQ
                     * requesting the registration fields.
                     */
                    var conn = _converse.connection;
                    var connect_cb = conn._connect_cb.bind(conn);
                    conn._connect_cb = function (req, callback, raw) {
                        if (!this._registering) {
                            connect_cb(req, callback, raw);
                        } else {
                            if (this.getRegistrationFields(req, callback, raw)) {
                                this._registering = false;
                            }
                        }
                    }.bind(this);
                },

                getRegistrationFields: function (req, _callback, raw) {
                    /*  Send an IQ stanza to the XMPP server asking for the
                     *  registration fields.
                     *  Parameters:
                     *    (Strophe.Request) req - The current request
                     *    (Function) callback
                     */
                    var conn = _converse.connection;
                    conn.connected = true;

                    var body = conn._proto._reqToData(req);
                    if (!body) { return; }
                    if (conn._proto._connect_cb(body) === Strophe.Status.CONNFAIL) {
                        return false;
                    }
                    var register = body.getElementsByTagName("register");
                    var mechanisms = body.getElementsByTagName("mechanism");
                    if (register.length === 0 && mechanisms.length === 0) {
                        conn._proto._no_auth_received(_callback);
                        return false;
                    }
                    if (register.length === 0) {
                        conn._changeConnectStatus(
                            Strophe.Status.REGIFAIL,
                            __("Sorry, the given provider does not support in "+
                               "band account registration. Please try with a "+
                               "different provider.")
                        );
                        return true;
                    }
                    // Send an IQ stanza to get all required data fields
                    conn._addSysHandler(this.onRegistrationFields.bind(this), null, "iq", null, null);
                    conn.send($iq({type: "get"}).c("query", {xmlns: Strophe.NS.REGISTER}).tree());
                    conn.connected = false;
                    return true;
                },

                onRegistrationFields: function (stanza) {
                    /*  Handler for Registration Fields Request.
                     *
                     *  Parameters:
                     *    (XMLElement) elem - The query stanza.
                     */
                    if (stanza.getElementsByTagName("query").length !== 1) {
                        _converse.connection._changeConnectStatus(Strophe.Status.REGIFAIL, "unknown");
                        return false;
                    }
                    this.setFields(stanza);
                    this.renderRegistrationForm(stanza);
                    return false;
                },

                reset: function (settings) {
                    var defaults = {
                        fields: {},
                        urls: [],
                        title: "",
                        instructions: "",
                        registered: false,
                        _registering: false,
                        domain: null,
                        form_type: null
                    };
                    _.extend(this, defaults);
                    if (settings) {
                        _.extend(this, _.pick(settings, _.keys(defaults)));
                    }
                },

                onProviderChosen: function (ev) {
                    /* Callback method that gets called when the user has chosen an
                     * XMPP provider.
                     *
                     * Parameters:
                     *      (Submit Event) ev - Form submission event.
                     */
                    if (ev && ev.preventDefault) { ev.preventDefault(); }
                    var $form = $(ev.target),
                        $domain_input = $form.find('input[name=domain]'),
                        domain = $domain_input.val();
                    if (!domain) {
                        $domain_input.addClass('error');
                        return;
                    }
                    $form.find('input[type=submit]').hide();
                    this.fetchRegistrationForm(domain, __('Cancel'));
                },

                fetchRegistrationForm: function (domain_name, cancel_label) {
                    /* This is called with a domain name based on which, it fetches a
                     * registration form from the requested domain.
                     *
                     * Parameters:
                     *      (Domain name) domain_name - XMPP server domain
                     */
                    this.renderRegistrationRequest(cancel_label);
                    this.reset({
                        domain: Strophe.getDomainFromJid(domain_name),
                        _registering: true
                    });
                    _converse.connection.connect(this.domain, "", this.onRegistering.bind(this));
                    return false;
                },

                renderRegistrationRequest: function (cancel_label) {
                    var form = this.el.querySelector('#converse-register');
                    utils.createElementsFromString(
                        form,
                        tpl_registration_request({
                            cancel: cancel_label,
                            info_message: _converse.__('Requesting a registration form from the XMPP server')
                        })
                    );
                    if (!_converse.registration_domain) {
                        var cancel_button = document.querySelector('button.button-cancel');
                        cancel_button.addEventListener('click', this.cancelRegistration.bind(this));
                    }
                },

                giveFeedback: function (message, klass) {
                    this.$('.reg-feedback').attr('class', 'reg-feedback').text(message);
                    if (klass) {
                        $('.reg-feedback').addClass(klass);
                    }
                },

                onRegistering: function (status, error) {
                    var that;
                    _converse.log('onRegistering');
                    if (_.includes([
                                Strophe.Status.DISCONNECTED,
                                Strophe.Status.CONNFAIL,
                                Strophe.Status.REGIFAIL,
                                Strophe.Status.NOTACCEPTABLE,
                                Strophe.Status.CONFLICT
                            ], status)) {

                        _converse.log('Problem during registration: Strophe.Status is: '+status);
                        this.cancelRegistration();
                        if (error) {
                            this.giveFeedback(error, 'error');
                        } else {
                            this.giveFeedback(__(
                                'Something went wrong while establishing a connection with "%1$s". Are you sure it exists?',
                                this.domain
                            ), 'error');
                        }
                    } else if (status === Strophe.Status.REGISTERED) {
                        _converse.log("Registered successfully.");
                        _converse.connection.reset();
                        that = this;
                        this.$('form').hide(function () {
                            $(this).replaceWith('<span class="spinner centered"/>');
                            if (that.fields.password && that.fields.username) {
                                // automatically log the user in
                                _converse.connection.connect(
                                    that.fields.username.toLowerCase()+'@'+that.domain.toLowerCase(),
                                    that.fields.password,
                                    _converse.onConnectStatusChanged
                                );
                                _converse.chatboxviews.get('controlbox')
                                    .switchTab({'target': that.$tabs.find('.current')});
                                _converse.giveFeedback(__('Now logging you in'));
                            } else {
                                _converse.chatboxviews.get('controlbox').renderLoginPanel();
                                _converse.giveFeedback(__('Registered successfully'));
                            }
                            that.reset();
                        });
                    }
                },

                renderRegistrationForm: function (stanza) {
                    /* Renders the registration form based on the XForm fields
                     * received from the XMPP server.
                     *
                     * Parameters:
                     *      (XMLElement) stanza - The IQ stanza received from the XMPP server.
                     */
                    this.model.set('registration_form_rendered', true);

                    var $form = this.$('form'),
                        $stanza = $(stanza),
                        $fields, $input;
                    $form.empty().append(tpl_registration_form({
                        'domain': this.domain,
                        'title': this.title,
                        'instructions': this.instructions
                    }));
                    if (this.form_type === 'xform') {
                        $fields = $stanza.find('field');
                        _.each($fields, function (field) {
                            $form.append(utils.xForm2webForm.bind(this, $(field), $stanza));
                        }.bind(this));
                    } else {
                        // Show fields
                        _.each(_.keys(this.fields), function (key) {
                            if (key === "username") {
                                $input = tpl_form_username({
                                    domain: ' @'+this.domain,
                                    name: key,
                                    type: "text",
                                    label: key,
                                    value: '',
                                    required: 1
                                });
                            } else {
                                $form.append('<label>'+key+'</label>');
                                $input = $('<input placeholder="'+key+'" name="'+key+'"></input>');
                                if (key === 'password' || key === 'email') {
                                    $input.attr('type', key);
                                }
                            }
                            $form.append($input);
                        }.bind(this));
                        // Show urls
                        _.each(this.urls, function (url) {
                            $form.append($('<a target="blank"></a>').attr('href', url).text(url));
                        }.bind(this));
                    }
                    if (this.fields) {
                        $form.append('<input type="submit" class="pure-button button-primary" value="'+__('Register')+'"/>');
                        $form.on('submit', this.submitRegistrationForm.bind(this));
                        $form.append('<input type="button" class="pure-button button-cancel" value="'+__('Cancel')+'"/>');
                        $form.find('input[type=button]').on('click', this.cancelRegistration.bind(this));
                    } else {
                        $form.append('<input type="button" class="submit" value="'+__('Return')+'"/>');
                        $form.find('input[type=button]').on('click', this.cancelRegistration.bind(this));
                    }
                    if (_converse.registration_domain) {
                        $form.find('input[type=button]').hide();
                    }
                },

                reportErrors: function (stanza) {
                    /* Report back to the user any error messages received from the
                     * XMPP server after attempted registration.
                     *
                     * Parameters:
                     *      (XMLElement) stanza - The IQ stanza received from the
                     *      XMPP server.
                     */
                    var $form= this.$('form'), flash;
                    var $errmsgs = $(stanza).find('error text');
                    var $flash = $form.find('.form-errors');
                    if (!$flash.length) {
                    flash = '<legend class="form-errors"></legend>';
                        if ($form.find('p.instructions').length) {
                            $form.find('p.instructions').append(flash);
                        } else {
                            $form.prepend(flash);
                        }
                        $flash = $form.find('.form-errors');
                    } else {
                        $flash.empty();
                    }
                    $errmsgs.each(function (idx, txt) {
                        $flash.append($('<p>').text($(txt).text()));
                    });
                    if (!$errmsgs.length) {
                        $flash.append($('<p>').text(
                            __('The provider rejected your registration attempt. '+
                            'Please check the values you entered for correctness.')));
                    }
                    $flash.show();
                },

                cancelRegistration: function (ev) {
                    /* Handler, when the user cancels the registration form.
                     */
                    if (ev && ev.preventDefault) { ev.preventDefault(); }
                    _converse.connection.reset();
                    this.model.set('registration_form_rendered', false);
                    this.render();
                    if (_converse.registration_domain) {
                        document.querySelector('button.button-cancel').onclick = 
                            _.bind(
                                this.fetchRegistrationForm, this,
                                _converse.registration_domain, __('Retry')
                            );
                    }
                },

                submitRegistrationForm: function (ev) {
                    /* Handler, when the user submits the registration form.
                     * Provides form error feedback or starts the registration
                     * process.
                     *
                     * Parameters:
                     *      (Event) ev - the submit event.
                     */
                    if (ev && ev.preventDefault) { ev.preventDefault(); }
                    var has_empty_inputs = _.reduce(this.el.querySelectorAll('input.required'),
                        function (result, input) {
                            if (input.value === '') {
                                input.classList.add('error');
                                return result + 1;
                            }
                            return result;
                        }, 0);
                    if (has_empty_inputs) { return; }
                    var $inputs = $(ev.target).find(':input:not([type=button]):not([type=submit])'),
                        iq = $iq({type: "set"}).c("query", {xmlns:Strophe.NS.REGISTER});

                    if (this.form_type === 'xform') {
                        iq.c("x", {xmlns: Strophe.NS.XFORM, type: 'submit'});
                        $inputs.each(function () {
                            iq.cnode(utils.webForm2xForm(this)).up();
                        });
                    } else {
                        $inputs.each(function () {
                            var $input = $(this);
                            iq.c($input.attr('name'), {}, $input.val());
                        });
                    }
                    this.model.set('registration_form_rendered', false);
                    _converse.connection._addSysHandler(this._onRegisterIQ.bind(this), null, "iq", null, null);
                    _converse.connection.send(iq);
                    this.setFields(iq.tree());
                },

                setFields: function (stanza) {
                    /* Stores the values that will be sent to the XMPP server
                     * during attempted registration.
                     *
                     * Parameters:
                     *      (XMLElement) stanza - the IQ stanza that will be sent to the XMPP server.
                     */
                    var $query = $(stanza).find('query'), $xform;
                    if ($query.length > 0) {
                        $xform = $query.find('x[xmlns="'+Strophe.NS.XFORM+'"]');
                        if ($xform.length > 0) {
                            this._setFieldsFromXForm($xform);
                        } else {
                            this._setFieldsFromLegacy($query);
                        }
                    }
                },

                _setFieldsFromLegacy: function ($query) {
                    $query.children().each(function (idx, field) {
                        var $field = $(field);
                        if (field.tagName.toLowerCase() === 'instructions') {
                            this.instructions = Strophe.getText(field);
                            return;
                        } else if (field.tagName.toLowerCase() === 'x') {
                            if ($field.attr('xmlns') === 'jabber:x:oob') {
                                $field.find('url').each(function (idx, url) {
                                    this.urls.push($(url).text());
                                }.bind(this));
                            }
                            return;
                        }
                        this.fields[field.tagName.toLowerCase()] = Strophe.getText(field);
                    }.bind(this));
                    this.form_type = 'legacy';
                },

                _setFieldsFromXForm: function ($xform) {
                    this.title = $xform.find('title').text();
                    this.instructions = $xform.find('instructions').text();
                    $xform.find('field').each(function (idx, field) {
                        var _var = field.getAttribute('var');
                        if (_var) {
                            this.fields[_var.toLowerCase()] = $(field).children('value').text();
                        } else {
                            // TODO: other option seems to be type="fixed"
                            _converse.log("WARNING: Found field we couldn't parse");
                        }
                    }.bind(this));
                    this.form_type = 'xform';
                },

                _onRegisterIQ: function (stanza) {
                    /* Callback method that gets called when a return IQ stanza
                     * is received from the XMPP server, after attempting to
                     * register a new user.
                     *
                     * Parameters:
                     *      (XMLElement) stanza - The IQ stanza.
                     */
                    var error = null,
                        query = stanza.getElementsByTagName("query");
                    if (query.length > 0) {
                        query = query[0];
                    }
                    if (stanza.getAttribute("type") === "error") {
                        _converse.log("Registration failed.");
                        error = stanza.getElementsByTagName("error");
                        if (error.length !== 1) {
                            _converse.connection._changeConnectStatus(Strophe.Status.REGIFAIL, "unknown");
                            return false;
                        }
                        error = error[0].firstChild.tagName.toLowerCase();
                        if (error === 'conflict') {
                            _converse.connection._changeConnectStatus(Strophe.Status.CONFLICT, error);
                        } else if (error === 'not-acceptable') {
                            _converse.connection._changeConnectStatus(Strophe.Status.NOTACCEPTABLE, error);
                        } else {
                            _converse.connection._changeConnectStatus(Strophe.Status.REGIFAIL, error);
                        }
                        this.reportErrors(stanza);
                    } else {
                        _converse.connection._changeConnectStatus(Strophe.Status.REGISTERED, null);
                    }
                    return false;
                },

                remove: function () {
                    this.$tabs.empty();
                    this.$el.parent().empty();
                }
            });
        }
    });
}));

/*
* Based on Ping Strophejs plugins (https://github.com/metajack/strophejs-plugins/tree/master/ping)
* This plugin is distributed under the terms of the MIT licence.
* Please see the LICENCE file for details.
*
* Copyright (c) Markus Kohlhase, 2010
* Refactored by Pavel Lang, 2011
* AMD Support added by Thierry
*/
/**
* File: strophe.ping.js
* A Strophe plugin for XMPP Ping ( http://xmpp.org/extensions/xep-0199.html )
*/
(function (root, factory) {
    if (typeof define === 'function' && define.amd) {
        // AMD. Register as an anonymous module.
        define('strophe.ping',[
            "strophe"
        ], function (Strophe) {
            factory(
                Strophe.Strophe,
                Strophe.$build,
                Strophe.$iq ,
                Strophe.$msg,
                Strophe.$pres
            );
            return Strophe;
        });
    } else {
        // Browser globals
        factory(
            root.Strophe,
            root.$build,
            root.$iq ,
            root.$msg,
            root.$pres
        );
    }
}(this, function (Strophe, $build, $iq, $msg, $pres) {
    Strophe.addConnectionPlugin('ping', {
        _c: null,

        // called by the Strophe.Connection constructor
        init: function(conn) {
            this._c = conn;
            Strophe.addNamespace('PING', "urn:xmpp:ping");
        },

        /**
         * Function: ping
         *
         * Parameters:
         * (String) to - The JID you want to ping
         * (Function) success - Callback function on success
         * (Function) error - Callback function on error
         * (Integer) timeout - Timeout in milliseconds
         */
        ping: function(jid, success, error, timeout) {
            var id = this._c.getUniqueId('ping');
            var iq = $iq({type: 'get', to: jid, id: id}).c(
                            'ping', {xmlns: Strophe.NS.PING});
            this._c.sendIQ(iq, success, error, timeout);
        },

        /**
         * Function: pong
         *
         * Parameters:
         * (Object) ping - The ping stanza from the server.
         */
        pong: function(ping) {
            var from = ping.getAttribute('from');
            var id = ping.getAttribute('id');
            var iq = $iq({type: 'result', to: from,id: id});
            this._c.sendIQ(iq);
        },

        /**
         * Function: addPingHandler
         *
         * Parameters:
         * (Function) handler - Ping handler
         *
         * Returns:
         * A reference to the handler that can be used to remove it.
         */
        addPingHandler: function(handler) {
            return this._c.addHandler(handler, Strophe.NS.PING, "iq", "get");
        }
    });
}));

// Converse.js (A browser based XMPP chat client)
// http://conversejs.org
//
// Copyright (c) 2012-2017, Jan-Carel Brand <jc@opkode.com>
// Licensed under the Mozilla Public License (MPLv2)
//
/*global define */

/* This is a Converse.js plugin which add support for application-level pings
 * as specified in XEP-0199 XMPP Ping.
 */
(function (root, factory) {
    define('converse-ping',["converse-core", "strophe.ping"], factory);
}(this, function (converse) {
    "use strict";
    // Strophe methods for building stanzas
    var Strophe = converse.env.Strophe,
        _ = converse.env._;
    
    converse.plugins.add('converse-ping', {

        initialize: function () {
            /* The initialize function gets called as soon as the plugin is
             * loaded by converse.js's plugin machinery.
             */
            var _converse = this._converse;

            this.updateSettings({
                ping_interval: 180 //in seconds
            });

            _converse.ping = function (jid, success, error, timeout) {
                // XXX: We could first check here if the server advertised that
                // it supports PING.
                // However, some servers don't advertise while still keeping the
                // connection option due to pings.
                //
                // var feature = _converse.features.findWhere({'var': Strophe.NS.PING});
                _converse.lastStanzaDate = new Date();
                if (_.isNil(jid)) {
                    jid = Strophe.getDomainFromJid(_converse.bare_jid);
                }
                if (_.isUndefined(timeout) ) { timeout = null; }
                if (_.isUndefined(success) ) { success = null; }
                if (_.isUndefined(error) ) { error = null; }
                if (_converse.connection) {
                    _converse.connection.ping.ping(jid, success, error, timeout);
                    return true;
                }
                return false;
            };

            _converse.pong = function (ping) {
                _converse.lastStanzaDate = new Date();
                _converse.connection.ping.pong(ping);
                return true;
            };

            _converse.registerPongHandler = function () {
                _converse.connection.disco.addFeature(Strophe.NS.PING);
                _converse.connection.ping.addPingHandler(_converse.pong);
            };

            _converse.registerPingHandler = function () {
                _converse.registerPongHandler();
                if (_converse.ping_interval > 0) {
                    _converse.connection.addHandler(function () {
                        /* Handler on each stanza, saves the received date
                         * in order to ping only when needed.
                         */
                        _converse.lastStanzaDate = new Date();
                        return true;
                    });
                    _converse.connection.addTimedHandler(1000, function () {
                        var now = new Date();
                        if (!_converse.lastStanzaDate) {
                            _converse.lastStanzaDate = now;
                        }
                        if ((now - _converse.lastStanzaDate)/1000 > _converse.ping_interval) {
                            return _converse.ping();
                        }
                        return true;
                    });
                }
            };

            var onConnected = function () {
                // Wrapper so that we can spy on registerPingHandler in tests
                _converse.registerPingHandler();
            };
            _converse.on('connected', onConnected);
            _converse.on('reconnected', onConnected);
        }
    });
}));

// Converse.js (A browser based XMPP chat client)
// http://conversejs.org
//
// Copyright (c) 2012-2017, Jan-Carel Brand <jc@opkode.com>
// Licensed under the Mozilla Public License (MPLv2)
//
/*global define */

(function (root, factory) {
    define('converse-notification',["converse-core"], factory);
}(this, function (converse) {
    "use strict";
    var utils = converse.env.utils,
        Strophe = converse.env.Strophe,
        _ = converse.env._;

    converse.plugins.add('converse-notification', {

        initialize: function () {
            /* The initialize function gets called as soon as the plugin is
             * loaded by converse.js's plugin machinery.
             */
            var _converse = this._converse;

            // For translations
            var __ = _converse.__;
            var ___ = _converse.___;

            _converse.supports_html5_notification = "Notification" in window;

            this.updateSettings({
                notify_all_room_messages: false,
                show_desktop_notifications: true,
                show_chatstate_notifications: false,
                chatstate_notification_blacklist: [],
                // ^ a list of JIDs to ignore concerning chat state notifications
                play_sounds: true,
                sounds_path: '/sounds/',
                notification_icon: '/logo/conversejs128.png'
            });

            _converse.isOnlyChatStateNotification = function (msg) {
                // See XEP-0085 Chat State Notification
                return (
                    _.isNull(msg.querySelector('body')) && (
                        _.isNull(msg.querySelector(_converse.ACTIVE)) ||
                        _.isNull(msg.querySelector(_converse.COMPOSING)) ||
                        _.isNull(msg.querySelector(_converse.INACTIVE)) ||
                        _.isNull(msg.querySelector(_converse.PAUSED)) ||
                        _.isNull(msg.querySelector(_converse.GONE))
                    )
                );
            };

            _converse.shouldNotifyOfGroupMessage = function (message) {
                /* Is this a group message worthy of notification?
                 */
                var notify_all = _converse.notify_all_room_messages,
                    jid = message.getAttribute('from'),
                    resource = Strophe.getResourceFromJid(jid),
                    room_jid = Strophe.getBareJidFromJid(jid),
                    sender = resource && Strophe.unescapeNode(resource) || '';
                if (sender === '' || message.querySelectorAll('delay').length > 0) {
                    return false;
                }
                var room = _converse.chatboxes.get(room_jid);
                var body = message.querySelector('body');
                if (_.isNull(body)) {
                    return false;
                }
                var mentioned = (new RegExp("\\b"+room.get('nick')+"\\b")).test(body.textContent);
                notify_all = notify_all === true ||
                    (_.isArray(notify_all) && _.includes(notify_all, room_jid));
                if (sender === room.get('nick') || (!notify_all && !mentioned)) {
                    return false;
                }
                return true;
            };

            _converse.shouldNotifyOfMessage = function (message) {
                /* Is this a message worthy of notification?
                 */
                if (utils.isOTRMessage(message)) {
                    return false;
                }
                var forwarded = message.querySelector('forwarded');
                if (!_.isNull(forwarded)) {
                    return false;
                } else if (message.getAttribute('type') === 'groupchat') {
                    return _converse.shouldNotifyOfGroupMessage(message);
                } else if (utils.isHeadlineMessage(message)) {
                    // We want to show notifications for headline messages.
                    return true;
                }
                var is_me = Strophe.getBareJidFromJid(
                        message.getAttribute('from')) === _converse.bare_jid;
                return !_converse.isOnlyChatStateNotification(message) && !is_me;
            };

            _converse.playSoundNotification = function () {
                /* Plays a sound to notify that a new message was recieved.
                 */
                // XXX Eventually this can be refactored to use Notification's sound
                // feature, but no browser currently supports it.
                // https://developer.mozilla.org/en-US/docs/Web/API/notification/sound
                var audio;
                if (_converse.play_sounds && !_.isUndefined(window.Audio)) {
                    audio = new Audio(_converse.sounds_path+"msg_received.ogg");
                    if (audio.canPlayType('/audio/ogg')) {
                        audio.play();
                    } else {
                        audio = new Audio(_converse.sounds_path+"msg_received.mp3");
                        audio.play();
                    }
                }
            };

            _converse.areDesktopNotificationsEnabled = function (ignore_hidden) {
                var enabled = _converse.supports_html5_notification &&
                    _converse.show_desktop_notifications &&
                    Notification.permission === "granted";
                if (ignore_hidden) {
                    return enabled;
                } else {
                    return enabled && _converse.windowState === 'hidden';
                }
            };

            _converse.showMessageNotification = function (message) {
                /* Shows an HTML5 Notification to indicate that a new chat
                 * message was received.
                 */
                var title, roster_item,
                    full_from_jid = message.getAttribute('from'),
                    from_jid = Strophe.getBareJidFromJid(full_from_jid);
                if (message.getAttribute('type') === 'headline') {
                    if (!_.includes(from_jid, '@') || _converse.allow_non_roster_messaging) {
                        title = __(___("Notification from %1$s"), from_jid);
                    } else {
                        return;
                    }
                } else if (!_.includes(from_jid, '@')) {
                    // XXX: workaround for Prosody which doesn't give type "headline"
                    title = __(___("Notification from %1$s"), from_jid);
                } else if (message.getAttribute('type') === 'groupchat') {
                    title = __(___("%1$s says"), Strophe.getResourceFromJid(full_from_jid));
                } else {
                    if (_.isUndefined(_converse.roster)) {
                        _converse.log(
                            "Could not send notification, because roster is undefined",
                            "error");
                        return;
                    }
                    roster_item = _converse.roster.get(from_jid);
                    if (!_.isUndefined(roster_item)) {
                        title = __(___("%1$s says"), roster_item.get('fullname'));
                    } else {
                        if (_converse.allow_non_roster_messaging) {
                            title = __(___("%1$s says"), from_jid);
                        } else {
                            return;
                        }
                    }
                }
                var n = new Notification(title, {
                        body: message.querySelector('body').textContent,
                        lang: _converse.locale,
                        icon: _converse.notification_icon
                    });
                setTimeout(n.close.bind(n), 5000);
            };

            _converse.showChatStateNotification = function (contact) {
                /* Creates an HTML5 Notification to inform of a change in a
                 * contact's chat state.
                 */
                if (_.includes(_converse.chatstate_notification_blacklist, contact.jid)) {
                    // Don't notify if the user is being ignored.
                    return;
                }
                var chat_state = contact.chat_status,
                    message = null;
                if (chat_state === 'offline') {
                    message = __('has gone offline');
                } else if (chat_state === 'away') {
                    message = __('has gone away');
                } else if ((chat_state === 'dnd')) {
                    message = __('is busy');
                } else if (chat_state === 'online') {
                    message = __('has come online');
                }
                if (message === null) {
                    return;
                }
                var n = new Notification(contact.fullname, {
                        body: message,
                        lang: _converse.locale,
                        icon: _converse.notification_icon
                    });
                setTimeout(n.close.bind(n), 5000);
            };

            _converse.showContactRequestNotification = function (contact) {
                var n = new Notification(contact.fullname, {
                        body: __('wants to be your contact'),
                        lang: _converse.locale,
                        icon: _converse.notification_icon
                    });
                setTimeout(n.close.bind(n), 5000);
            };

            _converse.showFeedbackNotification = function (data) {
                if (data.klass === 'error' || data.klass === 'warn') {
                    var n = new Notification(data.subject, {
                            body: data.message,
                            lang: _converse.locale,
                            icon: _converse.notification_icon
                        });
                    setTimeout(n.close.bind(n), 5000);
                }
            };

            _converse.handleChatStateNotification = function (contact) {
                /* Event handler for on('contactStatusChanged').
                 * Will show an HTML5 notification to indicate that the chat
                 * status has changed.
                 */
                if (_converse.areDesktopNotificationsEnabled() &&
                        _converse.show_chatstate_notifications) {
                    _converse.showChatStateNotification(contact);
                }
            };

            _converse.handleMessageNotification = function (message) {
                /* Event handler for the on('message') event. Will call methods
                 * to play sounds and show HTML5 notifications.
                 */
                if (!_converse.shouldNotifyOfMessage(message)) {
                    return false;
                }
                _converse.playSoundNotification();
                if (_converse.areDesktopNotificationsEnabled()) {
                    _converse.showMessageNotification(message);
                }
            };

            _converse.handleContactRequestNotification = function (contact) {
                if (_converse.areDesktopNotificationsEnabled(true)) {
                    _converse.showContactRequestNotification(contact);
                }
            };

            _converse.handleFeedback = function (data) {
                if (_converse.areDesktopNotificationsEnabled(true)) {
                    _converse.showFeedbackNotification(data);
                }
            };

            _converse.requestPermission = function () {
                if (_converse.supports_html5_notification &&
                    ! _.includes(['denied', 'granted'], Notification.permission)) {
                    // Ask user to enable HTML5 notifications
                    Notification.requestPermission();
                }
            };

            _converse.on('pluginsInitialized', function () {
                // We only register event handlers after all plugins are
                // registered, because other plugins might override some of our
                // handlers.
                _converse.on('contactRequest',  _converse.handleContactRequestNotification);
                _converse.on('contactStatusChanged',  _converse.handleChatStateNotification);
                _converse.on('message',  _converse.handleMessageNotification);
                _converse.on('feedback', _converse.handleFeedback);
                _converse.on('connected', _converse.requestPermission);
            });
        }
    });
}));

// Converse.js (A browser based XMPP chat client)
// http://conversejs.org
//
// Copyright (c) 2012-2017, Jan-Carel Brand <jc@opkode.com>
// Licensed under the Mozilla Public License (MPLv2)
//
/*global define */

(function (root, factory) {
    define('converse-headline',[
            "converse-core",
            "tpl!chatbox",
            "converse-chatview",
    ], factory);
}(this, function (converse, tpl_chatbox) {
    "use strict";
    var _ = converse.env._,
        utils = converse.env.utils;

    converse.plugins.add('converse-headline', {

        overrides: {
            // Overrides mentioned here will be picked up by converse.js's
            // plugin architecture they will replace existing methods on the
            // relevant objects or classes.
            //
            // New functions which don't exist yet can also be added.

            ChatBoxViews: {
                onChatBoxAdded: function (item) {
                    var _converse = this.__super__._converse;
                    var view = this.get(item.get('id'));
                    if (!view && item.get('type') === 'headline') {
                        view = new _converse.HeadlinesBoxView({model: item});
                        this.add(item.get('id'), view);
                        return view;
                    } else {
                        return this.__super__.onChatBoxAdded.apply(this, arguments);
                    }
                }
            }
        },

        initialize: function () {
            /* The initialize function gets called as soon as the plugin is
             * loaded by converse.js's plugin machinery.
             */
            var _converse = this._converse,
                __ = _converse.__;

            _converse.HeadlinesBoxView = _converse.ChatBoxView.extend({
                className: 'chatbox headlines',

                events: {
                    'click .close-chatbox-button': 'close',
                    'click .toggle-chatbox-button': 'minimize',
                    'keypress textarea.chat-textarea': 'keyPressed'
                },

                initialize: function () {
                    this.disable_mam = true; // Don't do MAM queries for this box
                    this.model.messages.on('add', this.onMessageAdded, this);
                    this.model.on('show', this.show, this);
                    this.model.on('destroy', this.hide, this);
                    this.model.on('change:minimized', this.onMinimizedChanged, this);
                    this.render().fetchMessages().insertIntoDOM().hide();
                    _converse.emit('chatBoxInitialized', this);
                },

                render: function () {
                    this.$el.attr('id', this.model.get('box_id'))
                        .html(tpl_chatbox(
                                _.extend(this.model.toJSON(), {
                                        show_toolbar: _converse.show_toolbar,
                                        show_textarea: false,
                                        show_send_button: _converse.show_send_button,
                                        title: this.model.get('fullname'),
                                        unread_msgs: __('You have unread messages'),
                                        info_close: __('Close this box'),
                                        label_personal_message: ''
                                    }
                                )
                            )
                        );
                    this.$content = this.$el.find('.chat-content');
                    _converse.emit('chatBoxOpened', this);
                    utils.refreshWebkit();
                    return this;
                }
            });

            var onHeadlineMessage = function (message) {
                /* Handler method for all incoming messages of type "headline". */
                var from_jid = message.getAttribute('from');
                if (utils.isHeadlineMessage(message)) {
                    if (_.includes(from_jid, '@') && !_converse.allow_non_roster_messaging) {
                        return;
                    }
                    _converse.chatboxes.create({
                        'id': from_jid,
                        'jid': from_jid,
                        'fullname':  from_jid,
                        'type': 'headline'
                    }).createMessage(message, undefined, message);
                    _converse.emit('message', message);
                }
                return true;
            };

            var registerHeadlineHandler = function () {
                _converse.connection.addHandler(
                        onHeadlineMessage, null, 'message');
            };
            _converse.on('connected', registerHeadlineHandler);
            _converse.on('reconnected', registerHeadlineHandler);
        }
    });
}));

/*global define */
if (typeof define !== 'undefined') {
    // The section below determines which plugins will be included in a build
    define('converse',[
        "converse-core",
        // PLEASE NOTE: By default all translations are included.
        // You can modify the file src/locales.js to include only those
        // translations that you care about.

        /* START: Removable components
         * --------------------
         * Any of the following components may be removed if they're not needed.
         */
        "converse-chatview",    // Renders standalone chat boxes for single user chat
        "converse-controlbox",  // The control box
        "converse-bookmarks",   // XEP-0048 Bookmarks
        "converse-mam",         // XEP-0313 Message Archive Management
        "converse-muc",         // XEP-0045 Multi-user chat
        "converse-vcard",       // XEP-0054 VCard-temp
        "converse-otr",         // Off-the-record encryption for one-on-one messages
        "converse-register",    // XEP-0077 In-band registration
        "converse-ping",        // XEP-0199 XMPP Ping
        "converse-notification",// HTML5 Notifications
        "converse-headline",    // Support for headline messages
        /* END: Removable components */
    ], function (converse) {
        return converse;
    });
}
;
/* jshint ignore:start */
    //The modules for your project will be inlined above
    //this snippet. Ask almond to synchronously require the
    //module value for 'converse' here and return it as the
    //value to use for the public API for the built file.
    return require('converse');
}));
/* jshint ignore:end */