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

/**
 * @license almond 0.3.2 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];
    }

    /**
     * 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, relName) {
        var plugin,
            parts = splitPrefix(name),
            prefix = parts[0];

        name = parts[1];

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

        //Normalize according
        if (prefix) {
            if (plugin && plugin.normalize) {
                name = plugin.normalize(name, makeNormalize(relName));
            } else {
                name = normalize(name, relName);
            }
        } else {
            name = normalize(name, relName);
            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,
            args = [],
            callbackType = typeof callback,
            usingExports;

        //Use name if no relName
        relName = relName || name;

        //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], relName);
                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, 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("components/almond/almond.js", function(){});

/*!
 * jQuery JavaScript Library v1.12.3
 * 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: 2016-04-05T19:16Z
 */

(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 deletedIds = [];

var document = window.document;

var slice = deletedIds.slice;

var concat = deletedIds.concat;

var push = deletedIds.push;

var indexOf = deletedIds.indexOf;

var class2type = {};

var toString = class2type.toString;

var hasOwn = class2type.hasOwnProperty;

var support = {};



var
	version = "1.12.3",

	// 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, IE<9
	// 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: deletedIds.sort,
	splice: deletedIds.splice
};

jQuery.extend = jQuery.fn.extend = function() {
	var src, copyIsArray, copy, name, options, 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() {},

	// See test/unit/core.js for details concerning isFunction.
	// Since version 1.3, DOM methods and functions like alert
	// aren't supported. They return false on IE (#2968).
	isFunction: function( obj ) {
		return jQuery.type( obj ) === "function";
	},

	isArray: Array.isArray || function( obj ) {
		return jQuery.type( obj ) === "array";
	},

	isWindow: function( obj ) {
		/* jshint eqeqeq: false */
		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;
	},

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

	isPlainObject: function( obj ) {
		var key;

		// Must be an Object.
		// Because of IE, we also have to check the presence of the constructor property.
		// Make sure that DOM nodes and window objects don't pass through, as well
		if ( !obj || jQuery.type( obj ) !== "object" || obj.nodeType || jQuery.isWindow( obj ) ) {
			return false;
		}

		try {

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

			// IE8,9 Will throw exceptions on certain host objects #9897
			return false;
		}

		// Support: IE<9
		// Handle iteration over inherited properties before own properties.
		if ( !support.ownFirst ) {
			for ( key in obj ) {
				return hasOwn.call( obj, key );
			}
		}

		// 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 );
	},

	type: function( obj ) {
		if ( obj == null ) {
			return obj + "";
		}
		return typeof obj === "object" || typeof obj === "function" ?
			class2type[ toString.call( obj ) ] || "object" :
			typeof obj;
	},

	// Workarounds based on findings by Jim Driscoll
	// http://weblogs.java.net/blog/driscoll/archive/2009/09/08/eval-javascript-global-context
	globalEval: function( data ) {
		if ( data && jQuery.trim( data ) ) {

			// We use execScript on Internet Explorer
			// We use an anonymous function so that context is window
			// rather than jQuery in Firefox
			( window.execScript || function( data ) {
				window[ "eval" ].call( window, data ); // jscs:ignore requireDotNotation
			} )( data );
		}
	},

	// Convert dashed to camelCase; used by the css and data modules
	// 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, IE<9
	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 ) {
		var len;

		if ( arr ) {
			if ( indexOf ) {
				return indexOf.call( arr, elem, i );
			}

			len = arr.length;
			i = i ? i < 0 ? Math.max( 0, len + i ) : i : 0;

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

				// Skip accessing in sparse arrays
				if ( i in arr && arr[ i ] === elem ) {
					return i;
				}
			}
		}

		return -1;
	},

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

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

		// Support: IE<9
		// Workaround casting of .length to NaN on otherwise arraylike objects (e.g., NodeLists)
		if ( len !== len ) {
			while ( second[ j ] !== undefined ) {
				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 args, proxy, tmp;

		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: function() {
		return +( new Date() );
	},

	// 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 ] = deletedIds[ 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 ( jQuery.inArray( elem, qualifier ) > -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,
			ret = [],
			self = this,
			len = self.length;

		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;
		}

		// 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.charAt( 0 ) === "<" &&
				selector.charAt( 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;

					// 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 ] );

					// Check parentNode to catch when Blackberry 4.6 returns
					// nodes that are no longer in the document #6963
					if ( elem && elem.parentNode ) {

						// Handle the case where IE and Opera return items
						// by name instead of ID
						if ( elem.id !== match[ 2 ] ) {
							return rootjQuery.find( selector );
						}

						// Otherwise, we 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 typeof 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 i,
			targets = jQuery( target, this ),
			len = targets.length;

		return this.filter( function() {
			for ( i = 0; i < len; 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 matched set of elements
	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 jQuery.inArray( this[ 0 ], jQuery( elem ) );
		}

		// Locate the position of the desired element
		return jQuery.inArray(

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

	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 ) {
	do {
		cur = cur[ dir ];
	} while ( cur && 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 jQuery.nodeName( elem, "iframe" ) ?
			elem.contentDocument || elem.contentWindow.document :
			jQuery.merge( [], elem.childNodes );
	}
}, function( name, fn ) {
	jQuery.fn[ name ] = function( until, selector ) {
		var ret = jQuery.map( this, fn, until );

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

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

		if ( this.length > 1 ) {

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

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

		return this.pushStack( ret );
	};
} );
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 = true;
				if ( !memory ) {
					self.disable();
				}
				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" );
		}
	}
} );

/**
 * Clean-up method for dom ready events
 */
function detach() {
	if ( document.addEventListener ) {
		document.removeEventListener( "DOMContentLoaded", completed );
		window.removeEventListener( "load", completed );

	} else {
		document.detachEvent( "onreadystatechange", completed );
		window.detachEvent( "onload", completed );
	}
}

/**
 * The ready event handler and self cleanup method
 */
function completed() {

	// readyState === "complete" is good enough for us to call the dom ready in oldIE
	if ( document.addEventListener ||
		window.event.type === "load" ||
		document.readyState === "complete" ) {

		detach();
		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: IE6-10
		// 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 );

		// Standards-based browsers support DOMContentLoaded
		} else if ( document.addEventListener ) {

			// Use the handy event callback
			document.addEventListener( "DOMContentLoaded", completed );

			// A fallback to window.onload, that will always work
			window.addEventListener( "load", completed );

		// If IE event model is used
		} else {

			// Ensure firing before onload, maybe late but safe also for iframes
			document.attachEvent( "onreadystatechange", completed );

			// A fallback to window.onload, that will always work
			window.attachEvent( "onload", completed );

			// If IE and not a frame
			// continually check to see if the document is ready
			var top = false;

			try {
				top = window.frameElement == null && document.documentElement;
			} catch ( e ) {}

			if ( top && top.doScroll ) {
				( function doScrollCheck() {
					if ( !jQuery.isReady ) {

						try {

							// Use the trick by Diego Perini
							// http://javascript.nwbox.com/IEContentLoaded/
							top.doScroll( "left" );
						} catch ( e ) {
							return window.setTimeout( doScrollCheck, 50 );
						}

						// detach all dom ready events
						detach();

						// and execute any waiting functions
						jQuery.ready();
					}
				} )();
			}
		}
	}
	return readyList.promise( obj );
};

// Kick off the DOM ready check even if the user does not
jQuery.ready.promise();




// Support: IE<9
// Iteration over object's inherited properties before its own
var i;
for ( i in jQuery( support ) ) {
	break;
}
support.ownFirst = i === "0";

// Note: most support tests are defined in their respective modules.
// false until the test is run
support.inlineBlockNeedsLayout = false;

// Execute ASAP in case we need to set body.style.zoom
jQuery( function() {

	// Minified: var a,b,c,d
	var val, div, body, container;

	body = document.getElementsByTagName( "body" )[ 0 ];
	if ( !body || !body.style ) {

		// Return for frameset docs that don't have a body
		return;
	}

	// Setup
	div = document.createElement( "div" );
	container = document.createElement( "div" );
	container.style.cssText = "position:absolute;border:0;width:0;height:0;top:0;left:-9999px";
	body.appendChild( container ).appendChild( div );

	if ( typeof div.style.zoom !== "undefined" ) {

		// Support: IE<8
		// Check if natively block-level elements act like inline-block
		// elements when setting their display to 'inline' and giving
		// them layout
		div.style.cssText = "display:inline;margin:0;border:0;padding:1px;width:1px;zoom:1";

		support.inlineBlockNeedsLayout = val = div.offsetWidth === 3;
		if ( val ) {

			// Prevent IE 6 from affecting layout for positioned elements #11048
			// Prevent IE from shrinking the body in IE 7 mode #12869
			// Support: IE<8
			body.style.zoom = 1;
		}
	}

	body.removeChild( container );
} );


( function() {
	var div = document.createElement( "div" );

	// Support: IE<9
	support.deleteExpando = true;
	try {
		delete div.test;
	} catch ( e ) {
		support.deleteExpando = false;
	}

	// Null elements to avoid leaks in IE.
	div = null;
} )();
var acceptData = function( elem ) {
	var noData = jQuery.noData[ ( elem.nodeName + " " ).toLowerCase() ],
		nodeType = +elem.nodeType || 1;

	// Do not set data on non-element DOM nodes because it will not be cleared (#8335).
	return nodeType !== 1 && nodeType !== 9 ?
		false :

		// Nodes accept data unless otherwise specified; rejection can be conditional
		!noData || noData !== true && elem.getAttribute( "classid" ) === noData;
};




var rbrace = /^(?:\{[\w\W]*\}|\[[\w\W]*\])$/,
	rmultiDash = /([A-Z])/g;

function dataAttr( elem, key, data ) {

	// If nothing was found internally, try to fetch any
	// data from the HTML5 data-* attribute
	if ( data === undefined && elem.nodeType === 1 ) {

		var name = "data-" + key.replace( rmultiDash, "-$1" ).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
			jQuery.data( elem, key, data );

		} else {
			data = undefined;
		}
	}

	return data;
}

// checks a cache object for emptiness
function isEmptyDataObject( obj ) {
	var name;
	for ( name in obj ) {

		// if the public data object is empty, the private is still empty
		if ( name === "data" && jQuery.isEmptyObject( obj[ name ] ) ) {
			continue;
		}
		if ( name !== "toJSON" ) {
			return false;
		}
	}

	return true;
}

function internalData( elem, name, data, pvt /* Internal Use Only */ ) {
	if ( !acceptData( elem ) ) {
		return;
	}

	var ret, thisCache,
		internalKey = jQuery.expando,

		// We have to handle DOM nodes and JS objects differently because IE6-7
		// can't GC object references properly across the DOM-JS boundary
		isNode = elem.nodeType,

		// Only DOM nodes need the global jQuery cache; JS object data is
		// attached directly to the object so GC can occur automatically
		cache = isNode ? jQuery.cache : elem,

		// Only defining an ID for JS objects if its cache already exists allows
		// the code to shortcut on the same path as a DOM node with no cache
		id = isNode ? elem[ internalKey ] : elem[ internalKey ] && internalKey;

	// Avoid doing any more work than we need to when trying to get data on an
	// object that has no data at all
	if ( ( !id || !cache[ id ] || ( !pvt && !cache[ id ].data ) ) &&
		data === undefined && typeof name === "string" ) {
		return;
	}

	if ( !id ) {

		// Only DOM nodes need a new unique ID for each element since their data
		// ends up in the global cache
		if ( isNode ) {
			id = elem[ internalKey ] = deletedIds.pop() || jQuery.guid++;
		} else {
			id = internalKey;
		}
	}

	if ( !cache[ id ] ) {

		// Avoid exposing jQuery metadata on plain JS objects when the object
		// is serialized using JSON.stringify
		cache[ id ] = isNode ? {} : { toJSON: jQuery.noop };
	}

	// An object can be passed to jQuery.data instead of a key/value pair; this gets
	// shallow copied over onto the existing cache
	if ( typeof name === "object" || typeof name === "function" ) {
		if ( pvt ) {
			cache[ id ] = jQuery.extend( cache[ id ], name );
		} else {
			cache[ id ].data = jQuery.extend( cache[ id ].data, name );
		}
	}

	thisCache = cache[ id ];

	// jQuery data() is stored in a separate object inside the object's internal data
	// cache in order to avoid key collisions between internal data and user-defined
	// data.
	if ( !pvt ) {
		if ( !thisCache.data ) {
			thisCache.data = {};
		}

		thisCache = thisCache.data;
	}

	if ( data !== undefined ) {
		thisCache[ jQuery.camelCase( name ) ] = data;
	}

	// Check for both converted-to-camel and non-converted data property names
	// If a data property was specified
	if ( typeof name === "string" ) {

		// First Try to find as-is property data
		ret = thisCache[ name ];

		// Test for null|undefined property data
		if ( ret == null ) {

			// Try to find the camelCased property
			ret = thisCache[ jQuery.camelCase( name ) ];
		}
	} else {
		ret = thisCache;
	}

	return ret;
}

function internalRemoveData( elem, name, pvt ) {
	if ( !acceptData( elem ) ) {
		return;
	}

	var thisCache, i,
		isNode = elem.nodeType,

		// See jQuery.data for more information
		cache = isNode ? jQuery.cache : elem,
		id = isNode ? elem[ jQuery.expando ] : jQuery.expando;

	// If there is already no cache entry for this object, there is no
	// purpose in continuing
	if ( !cache[ id ] ) {
		return;
	}

	if ( name ) {

		thisCache = pvt ? cache[ id ] : cache[ id ].data;

		if ( thisCache ) {

			// Support array or space separated string names for data keys
			if ( !jQuery.isArray( name ) ) {

				// try the string as a key before any manipulation
				if ( name in thisCache ) {
					name = [ name ];
				} else {

					// split the camel cased version by spaces unless a key with the spaces exists
					name = jQuery.camelCase( name );
					if ( name in thisCache ) {
						name = [ name ];
					} else {
						name = name.split( " " );
					}
				}
			} else {

				// 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 = name.concat( jQuery.map( name, jQuery.camelCase ) );
			}

			i = name.length;
			while ( i-- ) {
				delete thisCache[ name[ i ] ];
			}

			// If there is no data left in the cache, we want to continue
			// and let the cache object itself get destroyed
			if ( pvt ? !isEmptyDataObject( thisCache ) : !jQuery.isEmptyObject( thisCache ) ) {
				return;
			}
		}
	}

	// See jQuery.data for more information
	if ( !pvt ) {
		delete cache[ id ].data;

		// Don't destroy the parent cache unless the internal data object
		// had been the only thing left in it
		if ( !isEmptyDataObject( cache[ id ] ) ) {
			return;
		}
	}

	// Destroy the cache
	if ( isNode ) {
		jQuery.cleanData( [ elem ], true );

	// Use delete when supported for expandos or `cache` is not a window per isWindow (#10080)
	/* jshint eqeqeq: false */
	} else if ( support.deleteExpando || cache != cache.window ) {
		/* jshint eqeqeq: true */
		delete cache[ id ];

	// When all else fails, undefined
	} else {
		cache[ id ] = undefined;
	}
}

jQuery.extend( {
	cache: {},

	// The following elements (space-suffixed to avoid Object.prototype collisions)
	// throw uncatchable exceptions if you attempt to set expando properties
	noData: {
		"applet ": true,
		"embed ": true,

		// ...but Flash objects (which have this classid) *can* handle expandos
		"object ": "clsid:D27CDB6E-AE6D-11cf-96B8-444553540000"
	},

	hasData: function( elem ) {
		elem = elem.nodeType ? jQuery.cache[ elem[ jQuery.expando ] ] : elem[ jQuery.expando ];
		return !!elem && !isEmptyDataObject( elem );
	},

	data: function( elem, name, data ) {
		return internalData( elem, name, data );
	},

	removeData: function( elem, name ) {
		return internalRemoveData( elem, name );
	},

	// For internal use only.
	_data: function( elem, name, data ) {
		return internalData( elem, name, data, true );
	},

	_removeData: function( elem, name ) {
		return internalRemoveData( elem, name, true );
	}
} );

jQuery.fn.extend( {
	data: function( key, value ) {
		var i, name, data,
			elem = this[ 0 ],
			attrs = elem && elem.attributes;

		// Special expections of .data basically thwart jQuery.access,
		// so implement the relevant behavior ourselves

		// Gets all values
		if ( key === undefined ) {
			if ( this.length ) {
				data = jQuery.data( elem );

				if ( elem.nodeType === 1 && !jQuery._data( elem, "parsedAttrs" ) ) {
					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 ] );
							}
						}
					}
					jQuery._data( elem, "parsedAttrs", true );
				}
			}

			return data;
		}

		// Sets multiple values
		if ( typeof key === "object" ) {
			return this.each( function() {
				jQuery.data( this, key );
			} );
		}

		return arguments.length > 1 ?

			// Sets one value
			this.each( function() {
				jQuery.data( this, key, value );
			} ) :

			// Gets one value
			// Try to fetch any internally stored data first
			elem ? dataAttr( elem, key, jQuery.data( elem, key ) ) : undefined;
	},

	removeData: function( key ) {
		return this.each( function() {
			jQuery.removeData( this, key );
		} );
	}
} );


jQuery.extend( {
	queue: function( elem, type, data ) {
		var queue;

		if ( elem ) {
			type = ( type || "fx" ) + "queue";
			queue = jQuery._data( elem, type );

			// Speed up dequeue by getting out quickly if this is just a lookup
			if ( data ) {
				if ( !queue || jQuery.isArray( data ) ) {
					queue = jQuery._data( 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 intended for public consumption - generates a queueHooks object,
	// or returns the current one
	_queueHooks: function( elem, type ) {
		var key = type + "queueHooks";
		return jQuery._data( elem, key ) || jQuery._data( elem, key, {
			empty: jQuery.Callbacks( "once memory" ).add( function() {
				jQuery._removeData( elem, type + "queue" );
				jQuery._removeData( elem, 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 = jQuery._data( elements[ i ], type + "queueHooks" );
			if ( tmp && tmp.empty ) {
				count++;
				tmp.empty.add( resolve );
			}
		}
		resolve();
		return defer.promise( obj );
	}
} );


( function() {
	var shrinkWrapBlocksVal;

	support.shrinkWrapBlocks = function() {
		if ( shrinkWrapBlocksVal != null ) {
			return shrinkWrapBlocksVal;
		}

		// Will be changed later if needed.
		shrinkWrapBlocksVal = false;

		// Minified: var b,c,d
		var div, body, container;

		body = document.getElementsByTagName( "body" )[ 0 ];
		if ( !body || !body.style ) {

			// Test fired too early or in an unsupported environment, exit.
			return;
		}

		// Setup
		div = document.createElement( "div" );
		container = document.createElement( "div" );
		container.style.cssText = "position:absolute;border:0;width:0;height:0;top:0;left:-9999px";
		body.appendChild( container ).appendChild( div );

		// Support: IE6
		// Check if elements with layout shrink-wrap their children
		if ( typeof div.style.zoom !== "undefined" ) {

			// Reset CSS: box-sizing; display; margin; border
			div.style.cssText =

				// Support: Firefox<29, Android 2.3
				// Vendor-prefix box-sizing
				"-webkit-box-sizing:content-box;-moz-box-sizing:content-box;" +
				"box-sizing:content-box;display:block;margin:0;border:0;" +
				"padding:1px;width:1px;zoom:1";
			div.appendChild( document.createElement( "div" ) ).style.width = "5px";
			shrinkWrapBlocksVal = div.offsetWidth !== 3;
		}

		body.removeChild( container );

		return shrinkWrapBlocksVal;
	};

} )();
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;
}


// 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,
		length = 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 < length; i++ ) {
				fn(
					elems[ i ],
					key,
					raw ? value : value.call( elems[ i ], i, fn( elems[ i ], key ) )
				);
			}
		}
	}

	return chainable ?
		elems :

		// Gets
		bulk ?
			fn.call( elems ) :
			length ? fn( elems[ 0 ], key ) : emptyGet;
};
var rcheckableType = ( /^(?:checkbox|radio)$/i );

var rtagName = ( /<([\w:-]+)/ );

var rscriptType = ( /^$|\/(?:java|ecma)script/i );

var rleadingWhitespace = ( /^\s+/ );

var nodeNames = "abbr|article|aside|audio|bdi|canvas|data|datalist|" +
		"details|dialog|figcaption|figure|footer|header|hgroup|main|" +
		"mark|meter|nav|output|picture|progress|section|summary|template|time|video";



function createSafeFragment( document ) {
	var list = nodeNames.split( "|" ),
		safeFrag = document.createDocumentFragment();

	if ( safeFrag.createElement ) {
		while ( list.length ) {
			safeFrag.createElement(
				list.pop()
			);
		}
	}
	return safeFrag;
}


( function() {
	var div = document.createElement( "div" ),
		fragment = document.createDocumentFragment(),
		input = document.createElement( "input" );

	// Setup
	div.innerHTML = "  <link/><table></table><a href='/a'>a</a><input type='checkbox'/>";

	// IE strips leading whitespace when .innerHTML is used
	support.leadingWhitespace = div.firstChild.nodeType === 3;

	// Make sure that tbody elements aren't automatically inserted
	// IE will insert them into empty tables
	support.tbody = !div.getElementsByTagName( "tbody" ).length;

	// Make sure that link elements get serialized correctly by innerHTML
	// This requires a wrapper element in IE
	support.htmlSerialize = !!div.getElementsByTagName( "link" ).length;

	// Makes sure cloning an html5 element does not cause problems
	// Where outerHTML is undefined, this still works
	support.html5Clone =
		document.createElement( "nav" ).cloneNode( true ).outerHTML !== "<:nav></:nav>";

	// Check if a disconnected checkbox will retain its checked
	// value of true after appended to the DOM (IE6/7)
	input.type = "checkbox";
	input.checked = true;
	fragment.appendChild( input );
	support.appendChecked = input.checked;

	// Make sure textarea (and checkbox) defaultValue is properly cloned
	// Support: IE6-IE11+
	div.innerHTML = "<textarea>x</textarea>";
	support.noCloneChecked = !!div.cloneNode( true ).lastChild.defaultValue;

	// #11217 - WebKit loses check when the name is after the checked attribute
	fragment.appendChild( div );

	// Support: Windows Web Apps (WWA)
	// `name` and `type` must use .setAttribute for WWA (#14901)
	input = document.createElement( "input" );
	input.setAttribute( "type", "radio" );
	input.setAttribute( "checked", "checked" );
	input.setAttribute( "name", "t" );

	div.appendChild( input );

	// Support: Safari 5.1, iOS 5.1, Android 4.x, Android 2.3
	// old WebKit doesn't clone checked state correctly in fragments
	support.checkClone = div.cloneNode( true ).cloneNode( true ).lastChild.checked;

	// Support: IE<9
	// Cloned elements keep attachEvent handlers, we use addEventListener on IE9+
	support.noCloneEvent = !!div.addEventListener;

	// Support: IE<9
	// Since attributes and properties are the same in IE,
	// cleanData must set properties to undefined rather than use removeAttribute
	div[ jQuery.expando ] = 1;
	support.attributes = !div.getAttribute( jQuery.expando );
} )();


// We have to close these tags to support XHTML (#13200)
var wrapMap = {
	option: [ 1, "<select multiple='multiple'>", "</select>" ],
	legend: [ 1, "<fieldset>", "</fieldset>" ],
	area: [ 1, "<map>", "</map>" ],

	// Support: IE8
	param: [ 1, "<object>", "</object>" ],
	thead: [ 1, "<table>", "</table>" ],
	tr: [ 2, "<table><tbody>", "</tbody></table>" ],
	col: [ 2, "<table><tbody></tbody><colgroup>", "</colgroup></table>" ],
	td: [ 3, "<table><tbody><tr>", "</tr></tbody></table>" ],

	// IE6-8 can't serialize link, script, style, or any html5 (NoScope) tags,
	// unless wrapped in a div with non-breaking characters in front of it.
	_default: support.htmlSerialize ? [ 0, "", "" ] : [ 1, "X<div>", "</div>" ]
};

// Support: IE8-IE9
wrapMap.optgroup = wrapMap.option;

wrapMap.tbody = wrapMap.tfoot = wrapMap.colgroup = wrapMap.caption = wrapMap.thead;
wrapMap.th = wrapMap.td;


function getAll( context, tag ) {
	var elems, elem,
		i = 0,
		found = typeof context.getElementsByTagName !== "undefined" ?
			context.getElementsByTagName( tag || "*" ) :
			typeof context.querySelectorAll !== "undefined" ?
				context.querySelectorAll( tag || "*" ) :
				undefined;

	if ( !found ) {
		for ( found = [], elems = context.childNodes || context;
			( elem = elems[ i ] ) != null;
			i++
		) {
			if ( !tag || jQuery.nodeName( elem, tag ) ) {
				found.push( elem );
			} else {
				jQuery.merge( found, getAll( elem, tag ) );
			}
		}
	}

	return tag === undefined || tag && jQuery.nodeName( context, tag ) ?
		jQuery.merge( [ context ], found ) :
		found;
}


// Mark scripts as having already been evaluated
function setGlobalEval( elems, refElements ) {
	var elem,
		i = 0;
	for ( ; ( elem = elems[ i ] ) != null; i++ ) {
		jQuery._data(
			elem,
			"globalEval",
			!refElements || jQuery._data( refElements[ i ], "globalEval" )
		);
	}
}


var rhtml = /<|&#?\w+;/,
	rtbody = /<tbody/i;

function fixDefaultChecked( elem ) {
	if ( rcheckableType.test( elem.type ) ) {
		elem.defaultChecked = elem.checked;
	}
}

function buildFragment( elems, context, scripts, selection, ignored ) {
	var j, elem, contains,
		tmp, tag, tbody, wrap,
		l = elems.length,

		// Ensure a safe fragment
		safe = createSafeFragment( context ),

		nodes = [],
		i = 0;

	for ( ; i < l; i++ ) {
		elem = elems[ i ];

		if ( elem || elem === 0 ) {

			// Add nodes directly
			if ( jQuery.type( elem ) === "object" ) {
				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 || safe.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;
				}

				// Manually add leading whitespace removed by IE
				if ( !support.leadingWhitespace && rleadingWhitespace.test( elem ) ) {
					nodes.push( context.createTextNode( rleadingWhitespace.exec( elem )[ 0 ] ) );
				}

				// Remove IE's autoinserted <tbody> from table fragments
				if ( !support.tbody ) {

					// String was a <table>, *may* have spurious <tbody>
					elem = tag === "table" && !rtbody.test( elem ) ?
						tmp.firstChild :

						// String was a bare <thead> or <tfoot>
						wrap[ 1 ] === "<table>" && !rtbody.test( elem ) ?
							tmp :
							0;

					j = elem && elem.childNodes.length;
					while ( j-- ) {
						if ( jQuery.nodeName( ( tbody = elem.childNodes[ j ] ), "tbody" ) &&
							!tbody.childNodes.length ) {

							elem.removeChild( tbody );
						}
					}
				}

				jQuery.merge( nodes, tmp.childNodes );

				// Fix #12392 for WebKit and IE > 9
				tmp.textContent = "";

				// Fix #12392 for oldIE
				while ( tmp.firstChild ) {
					tmp.removeChild( tmp.firstChild );
				}

				// Remember the top-level container for proper cleanup
				tmp = safe.lastChild;
			}
		}
	}

	// Fix #11356: Clear elements from fragment
	if ( tmp ) {
		safe.removeChild( tmp );
	}

	// Reset defaultChecked for any radios and checkboxes
	// about to be appended to the DOM in IE 6/7 (#8060)
	if ( !support.appendChecked ) {
		jQuery.grep( getAll( nodes, "input" ), fixDefaultChecked );
	}

	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( safe.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 );
				}
			}
		}
	}

	tmp = null;

	return safe;
}


( function() {
	var i, eventName,
		div = document.createElement( "div" );

	// Support: IE<9 (lack submit/change bubble), Firefox (lack focus(in | out) events)
	for ( i in { submit: true, change: true, focusin: true } ) {
		eventName = "on" + i;

		if ( !( support[ i ] = eventName in window ) ) {

			// Beware of CSP restrictions (https://developer.mozilla.org/en/Security/CSP)
			div.setAttribute( eventName, "t" );
			support[ i ] = div.attributes[ eventName ].expando === false;
		}
	}

	// Null elements to avoid leaks in IE.
	div = null;
} )();


var rformElems = /^(?:input|select|textarea)$/i,
	rkeyEvent = /^key/,
	rmouseEvent = /^(?:mouse|pointer|contextmenu|drag|drop)|click/,
	rfocusMorph = /^(?:focusinfocus|focusoutblur)$/,
	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 tmp, events, t, handleObjIn,
			special, eventHandle, handleObj,
			handlers, type, namespaces, origType,
			elemData = jQuery._data( 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" &&
					( !e || jQuery.event.triggered !== e.type ) ?
					jQuery.event.dispatch.apply( eventHandle.elem, arguments ) :
					undefined;
			};

			// Add elem as a property of the handle fn to prevent a memory leak
			// with IE non-native events
			eventHandle.elem = elem;
		}

		// 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/attachEvent if the special events handler returns false
				if ( !special.setup ||
					special.setup.call( elem, data, namespaces, eventHandle ) === false ) {

					// Bind the global event handler to the element
					if ( elem.addEventListener ) {
						elem.addEventListener( type, eventHandle, false );

					} else if ( elem.attachEvent ) {
						elem.attachEvent( "on" + 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;
		}

		// Nullify elem to prevent memory leaks in IE
		elem = null;
	},

	// Detach an event or set of events from an element
	remove: function( elem, types, handler, selector, mappedTypes ) {
		var j, handleObj, tmp,
			origCount, t, events,
			special, handlers, type,
			namespaces, origType,
			elemData = jQuery.hasData( elem ) && jQuery._data( 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 the expando if it's no longer used
		if ( jQuery.isEmptyObject( events ) ) {
			delete elemData.handle;

			// removeData also checks for emptiness and clears the expando if empty
			// so use it instead of delete
			jQuery._removeData( elem, "events" );
		}
	},

	trigger: function( event, data, elem, onlyHandlers ) {
		var handle, ontype, cur,
			bubbleType, special, tmp, i,
			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 = ( jQuery._data( cur, "events" ) || {} )[ event.type ] &&
				jQuery._data( 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.
				// Can't use an .isFunction() check here because IE6/7 fails that test.
				// Don't do default actions on window, that's where global variables be (#6170)
				if ( ontype && 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;
					try {
						elem[ type ]();
					} catch ( e ) {

						// IE<9 dies on focus/blur to hidden element (#1486,#12518)
						// only reproducible on winXP IE8 native, not IE9 in IE8 mode
					}
					jQuery.event.triggered = undefined;

					if ( tmp ) {
						elem[ ontype ] = tmp;
					}
				}
			}
		}

		return event.result;
	},

	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 = ( jQuery._data( 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 ) ) {

			/* jshint eqeqeq: false */
			for ( ; cur != this; cur = cur.parentNode || this ) {
				/* jshint eqeqeq: true */

				// 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;
	},

	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: IE<9
		// Fix target property (#1925)
		if ( !event.target ) {
			event.target = originalEvent.srcElement || document;
		}

		// Support: Safari 6-8+
		// Target should not be a text node (#504, #13143)
		if ( event.target.nodeType === 3 ) {
			event.target = event.target.parentNode;
		}

		// Support: IE<9
		// For mouse/key events, metaKey==false if it's undefined (#3368, #11328)
		event.metaKey = !!event.metaKey;

		return fixHook.filter ? fixHook.filter( event, originalEvent ) : event;
	},

	// 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 fromElement offsetX offsetY " +
			"pageX pageY screenX screenY toElement" ).split( " " ),
		filter: function( event, original ) {
			var body, eventDoc, doc,
				button = original.button,
				fromElement = original.fromElement;

			// 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 relatedTarget, if necessary
			if ( !event.relatedTarget && fromElement ) {
				event.relatedTarget = fromElement === event.target ?
					original.toElement :
					fromElement;
			}

			// 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;
		}
	},

	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 ) {
					try {
						this.focus();
						return false;
					} catch ( e ) {

						// Support: IE<9
						// If we error on focus to hidden element (#1486, #12518),
						// let .trigger() run the handlers
					}
				}
			},
			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 ( jQuery.nodeName( this, "input" ) && this.type === "checkbox" && this.click ) {
					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;
				}
			}
		}
	},

	// 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.
				//
				// Guard for simulated events was moved to jQuery.event.stopPropagation function
				// since `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.removeEvent = document.removeEventListener ?
	function( elem, type, handle ) {

		// This "if" is needed for plain objects
		if ( elem.removeEventListener ) {
			elem.removeEventListener( type, handle );
		}
	} :
	function( elem, type, handle ) {
		var name = "on" + type;

		if ( elem.detachEvent ) {

			// #8545, #7054, preventing memory leaks for custom events in IE6-8
			// detachEvent needed property on element, by name of that event,
			// to properly expose it to GC
			if ( typeof elem[ name ] === "undefined" ) {
				elem[ name ] = null;
			}

			elem.detachEvent( name, 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: IE < 9, 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 ) {
			return;
		}

		// If preventDefault exists, run it on the original event
		if ( e.preventDefault ) {
			e.preventDefault();

		// Support: IE
		// Otherwise set the returnValue property of the original event to false
		} else {
			e.returnValue = false;
		}
	},
	stopPropagation: function() {
		var e = this.originalEvent;

		this.isPropagationStopped = returnTrue;

		if ( !e || this.isSimulated ) {
			return;
		}

		// If stopPropagation exists, run it on the original event
		if ( e.stopPropagation ) {
			e.stopPropagation();
		}

		// Support: IE
		// Set the cancelBubble property of the original event to true
		e.cancelBubble = true;
	},
	stopImmediatePropagation: function() {
		var e = this.originalEvent;

		this.isImmediatePropagationStopped = returnTrue;

		if ( e && e.stopImmediatePropagation ) {
			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;
		}
	};
} );

// IE submit delegation
if ( !support.submit ) {

	jQuery.event.special.submit = {
		setup: function() {

			// Only need this for delegated form submit events
			if ( jQuery.nodeName( this, "form" ) ) {
				return false;
			}

			// Lazy-add a submit handler when a descendant form may potentially be submitted
			jQuery.event.add( this, "click._submit keypress._submit", function( e ) {

				// Node name check avoids a VML-related crash in IE (#9807)
				var elem = e.target,
					form = jQuery.nodeName( elem, "input" ) || jQuery.nodeName( elem, "button" ) ?

						// Support: IE <=8
						// We use jQuery.prop instead of elem.form
						// to allow fixing the IE8 delegated submit issue (gh-2332)
						// by 3rd party polyfills/workarounds.
						jQuery.prop( elem, "form" ) :
						undefined;

				if ( form && !jQuery._data( form, "submit" ) ) {
					jQuery.event.add( form, "submit._submit", function( event ) {
						event._submitBubble = true;
					} );
					jQuery._data( form, "submit", true );
				}
			} );

			// return undefined since we don't need an event listener
		},

		postDispatch: function( event ) {

			// If form was submitted by the user, bubble the event up the tree
			if ( event._submitBubble ) {
				delete event._submitBubble;
				if ( this.parentNode && !event.isTrigger ) {
					jQuery.event.simulate( "submit", this.parentNode, event );
				}
			}
		},

		teardown: function() {

			// Only need this for delegated form submit events
			if ( jQuery.nodeName( this, "form" ) ) {
				return false;
			}

			// Remove delegated handlers; cleanData eventually reaps submit handlers attached above
			jQuery.event.remove( this, "._submit" );
		}
	};
}

// IE change delegation and checkbox/radio fix
if ( !support.change ) {

	jQuery.event.special.change = {

		setup: function() {

			if ( rformElems.test( this.nodeName ) ) {

				// IE doesn't fire change on a check/radio until blur; trigger it on click
				// after a propertychange. Eat the blur-change in special.change.handle.
				// This still fires onchange a second time for check/radio after blur.
				if ( this.type === "checkbox" || this.type === "radio" ) {
					jQuery.event.add( this, "propertychange._change", function( event ) {
						if ( event.originalEvent.propertyName === "checked" ) {
							this._justChanged = true;
						}
					} );
					jQuery.event.add( this, "click._change", function( event ) {
						if ( this._justChanged && !event.isTrigger ) {
							this._justChanged = false;
						}

						// Allow triggered, simulated change events (#11500)
						jQuery.event.simulate( "change", this, event );
					} );
				}
				return false;
			}

			// Delegated event; lazy-add a change handler on descendant inputs
			jQuery.event.add( this, "beforeactivate._change", function( e ) {
				var elem = e.target;

				if ( rformElems.test( elem.nodeName ) && !jQuery._data( elem, "change" ) ) {
					jQuery.event.add( elem, "change._change", function( event ) {
						if ( this.parentNode && !event.isSimulated && !event.isTrigger ) {
							jQuery.event.simulate( "change", this.parentNode, event );
						}
					} );
					jQuery._data( elem, "change", true );
				}
			} );
		},

		handle: function( event ) {
			var elem = event.target;

			// Swallow native change events from checkbox/radio, we already triggered them above
			if ( this !== elem || event.isSimulated || event.isTrigger ||
				( elem.type !== "radio" && elem.type !== "checkbox" ) ) {

				return event.handleObj.handler.apply( this, arguments );
			}
		},

		teardown: function() {
			jQuery.event.remove( this, "._change" );

			return !rformElems.test( this.nodeName );
		}
	};
}

// 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 = jQuery._data( doc, fix );

				if ( !attaches ) {
					doc.addEventListener( orig, handler, true );
				}
				jQuery._data( doc, fix, ( attaches || 0 ) + 1 );
			},
			teardown: function() {
				var doc = this.ownerDocument || this,
					attaches = jQuery._data( doc, fix ) - 1;

				if ( !attaches ) {
					doc.removeEventListener( orig, handler, true );
					jQuery._removeData( doc, fix );
				} else {
					jQuery._data( doc, fix, attaches );
				}
			}
		};
	} );
}

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 );
		} );
	},

	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 );
		}
	}
} );


var rinlinejQuery = / jQuery\d+="(?:null|\d+)"/g,
	rnoshimcache = new RegExp( "<(?:" + nodeNames + ")[\\s/>]", "i" ),
	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,
	safeFragment = createSafeFragment( document ),
	fragmentDiv = safeFragment.appendChild( document.createElement( "div" ) );

// Support: IE<8
// 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 = ( jQuery.find.attr( elem, "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 ) {
	if ( dest.nodeType !== 1 || !jQuery.hasData( src ) ) {
		return;
	}

	var type, i, l,
		oldData = jQuery._data( src ),
		curData = jQuery._data( dest, oldData ),
		events = oldData.events;

	if ( events ) {
		delete curData.handle;
		curData.events = {};

		for ( type in events ) {
			for ( i = 0, l = events[ type ].length; i < l; i++ ) {
				jQuery.event.add( dest, type, events[ type ][ i ] );
			}
		}
	}

	// make the cloned public data object a copy from the original
	if ( curData.data ) {
		curData.data = jQuery.extend( {}, curData.data );
	}
}

function fixCloneNodeIssues( src, dest ) {
	var nodeName, e, data;

	// We do not need to do anything for non-Elements
	if ( dest.nodeType !== 1 ) {
		return;
	}

	nodeName = dest.nodeName.toLowerCase();

	// IE6-8 copies events bound via attachEvent when using cloneNode.
	if ( !support.noCloneEvent && dest[ jQuery.expando ] ) {
		data = jQuery._data( dest );

		for ( e in data.events ) {
			jQuery.removeEvent( dest, e, data.handle );
		}

		// Event data gets referenced instead of copied if the expando gets copied too
		dest.removeAttribute( jQuery.expando );
	}

	// IE blanks contents when cloning scripts, and tries to evaluate newly-set text
	if ( nodeName === "script" && dest.text !== src.text ) {
		disableScript( dest ).text = src.text;
		restoreScript( dest );

	// IE6-10 improperly clones children of object elements using classid.
	// IE10 throws NoModificationAllowedError if parent is null, #12132.
	} else if ( nodeName === "object" ) {
		if ( dest.parentNode ) {
			dest.outerHTML = src.outerHTML;
		}

		// This path appears unavoidable for IE9. When cloning an object
		// element in IE9, the outerHTML strategy above is not sufficient.
		// If the src has innerHTML and the destination does not,
		// copy the src.innerHTML into the dest.innerHTML. #10324
		if ( support.html5Clone && ( src.innerHTML && !jQuery.trim( dest.innerHTML ) ) ) {
			dest.innerHTML = src.innerHTML;
		}

	} else if ( nodeName === "input" && rcheckableType.test( src.type ) ) {

		// IE6-8 fails to persist the checked state of a cloned checkbox
		// or radio button. Worse, IE6-7 fail to give the cloned element
		// a checked appearance if the defaultChecked value isn't also set

		dest.defaultChecked = dest.checked = src.checked;

		// IE6-7 get confused and end up setting the value of a cloned
		// checkbox/radio button to an empty string instead of "on"
		if ( dest.value !== src.value ) {
			dest.value = src.value;
		}

	// IE6-8 fails to return the selected option to the default selected
	// state when cloning options
	} else if ( nodeName === "option" ) {
		dest.defaultSelected = dest.selected = src.defaultSelected;

	// IE6-8 fails to set the defaultValue to the correct value when
	// cloning other types of input fields
	} 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 first, node, hasScripts,
		scripts, doc, fragment,
		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 || "" ) &&
						!jQuery._data( 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.text || node.textContent || node.innerHTML || "" )
									.replace( rcleanScript, "" )
							);
						}
					}
				}
			}

			// Fix #11809: Avoid leaking memory
			fragment = first = null;
		}
	}

	return collection;
}

function remove( elem, selector, keepData ) {
	var node,
		elems = selector ? jQuery.filter( selector, elem ) : elem,
		i = 0;

	for ( ; ( node = elems[ 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 destElements, node, clone, i, srcElements,
			inPage = jQuery.contains( elem.ownerDocument, elem );

		if ( support.html5Clone || jQuery.isXMLDoc( elem ) ||
			!rnoshimcache.test( "<" + elem.nodeName + ">" ) ) {

			clone = elem.cloneNode( true );

		// IE<=8 does not properly clone detached, unknown element nodes
		} else {
			fragmentDiv.innerHTML = elem.outerHTML;
			fragmentDiv.removeChild( clone = fragmentDiv.firstChild );
		}

		if ( ( !support.noCloneEvent || !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 );

			// Fix all IE cloning issues
			for ( i = 0; ( node = srcElements[ i ] ) != null; ++i ) {

				// Ensure that the destination node is not null; Fixes #9587
				if ( destElements[ i ] ) {
					fixCloneNodeIssues( node, 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; ( node = srcElements[ i ] ) != null; i++ ) {
					cloneCopyEvent( node, destElements[ i ] );
				}
			} else {
				cloneCopyEvent( elem, clone );
			}
		}

		// Preserve script evaluation history
		destElements = getAll( clone, "script" );
		if ( destElements.length > 0 ) {
			setGlobalEval( destElements, !inPage && getAll( elem, "script" ) );
		}

		destElements = srcElements = node = null;

		// Return the cloned set
		return clone;
	},

	cleanData: function( elems, /* internal */ forceAcceptData ) {
		var elem, type, id, data,
			i = 0,
			internalKey = jQuery.expando,
			cache = jQuery.cache,
			attributes = support.attributes,
			special = jQuery.event.special;

		for ( ; ( elem = elems[ i ] ) != null; i++ ) {
			if ( forceAcceptData || acceptData( elem ) ) {

				id = elem[ internalKey ];
				data = id && cache[ id ];

				if ( data ) {
					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 );
							}
						}
					}

					// Remove cache only if it was not already removed by jQuery.event.remove
					if ( cache[ id ] ) {

						delete cache[ id ];

						// Support: IE<9
						// IE does not allow us to delete expando properties from nodes
						// IE creates expando attributes along with the property
						// IE does not have a removeAttribute function on Document nodes
						if ( !attributes && typeof elem.removeAttribute !== "undefined" ) {
							elem.removeAttribute( internalKey );

						// 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
						} else {
							elem[ internalKey ] = undefined;
						}

						deletedIds.push( id );
					}
				}
			}
		}
	}
} );

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().append(
					( this[ 0 ] && this[ 0 ].ownerDocument || document ).createTextNode( 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++ ) {

			// Remove element nodes and prevent memory leaks
			if ( elem.nodeType === 1 ) {
				jQuery.cleanData( getAll( elem, false ) );
			}

			// Remove any remaining nodes
			while ( elem.firstChild ) {
				elem.removeChild( elem.firstChild );
			}

			// If this is a select, ensure that it displays empty (#12336)
			// Support: IE<9
			if ( elem.options && jQuery.nodeName( elem, "select" ) ) {
				elem.options.length = 0;
			}
		}

		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 ) {
				return elem.nodeType === 1 ?
					elem.innerHTML.replace( rinlinejQuery, "" ) :
					undefined;
			}

			// See if we can take a shortcut and just use innerHTML
			if ( typeof value === "string" && !rnoInnerhtml.test( value ) &&
				( support.htmlSerialize || !rnoshimcache.test( value )  ) &&
				( support.leadingWhitespace || !rleadingWhitespace.test( value ) ) &&
				!wrapMap[ ( rtagName.exec( value ) || [ "", "" ] )[ 1 ].toLowerCase() ] ) {

				value = jQuery.htmlPrefilter( value );

				try {
					for ( ; i < l; i++ ) {

						// Remove element nodes and prevent memory leaks
						elem = this[ i ] || {};
						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,
			i = 0,
			ret = [],
			insert = jQuery( selector ),
			last = insert.length - 1;

		for ( ; i <= last; i++ ) {
			elems = i === last ? this : this.clone( true );
			jQuery( insert[ i ] )[ original ]( elems );

			// Modern browsers can apply jQuery collections as arrays, but oldIE needs a .get()
			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 ].contentWindow || iframe[ 0 ].contentDocument ).document;

			// 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 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, pixelMarginRightVal, boxSizingReliableVal,
		reliableHiddenOffsetsVal, reliableMarginRightVal, reliableMarginLeftVal,
		container = document.createElement( "div" ),
		div = document.createElement( "div" );

	// Finish early in limited (non-browser) environments
	if ( !div.style ) {
		return;
	}

	div.style.cssText = "float:left;opacity:.5";

	// Support: IE<9
	// Make sure that element opacity exists (as opposed to filter)
	support.opacity = div.style.opacity === "0.5";

	// Verify style float existence
	// (IE uses styleFloat instead of cssFloat)
	support.cssFloat = !!div.style.cssFloat;

	div.style.backgroundClip = "content-box";
	div.cloneNode( true ).style.backgroundClip = "";
	support.clearCloneStyle = div.style.backgroundClip === "content-box";

	container = document.createElement( "div" );
	container.style.cssText = "border:0;width:8px;height:0;top:0;left:-9999px;" +
		"padding:0;margin-top:1px;position:absolute";
	div.innerHTML = "";
	container.appendChild( div );

	// Support: Firefox<29, Android 2.3
	// Vendor-prefix box-sizing
	support.boxSizing = div.style.boxSizing === "" || div.style.MozBoxSizing === "" ||
		div.style.WebkitBoxSizing === "";

	jQuery.extend( support, {
		reliableHiddenOffsets: function() {
			if ( pixelPositionVal == null ) {
				computeStyleTests();
			}
			return reliableHiddenOffsetsVal;
		},

		boxSizingReliable: function() {

			// We're checking for pixelPositionVal here instead of boxSizingReliableVal
			// since that compresses better and they're computed together anyway.
			if ( pixelPositionVal == null ) {
				computeStyleTests();
			}
			return boxSizingReliableVal;
		},

		pixelMarginRight: function() {

			// Support: Android 4.0-4.3
			if ( pixelPositionVal == null ) {
				computeStyleTests();
			}
			return pixelMarginRightVal;
		},

		pixelPosition: function() {
			if ( pixelPositionVal == null ) {
				computeStyleTests();
			}
			return pixelPositionVal;
		},

		reliableMarginRight: function() {

			// Support: Android 2.3
			if ( pixelPositionVal == null ) {
				computeStyleTests();
			}
			return reliableMarginRightVal;
		},

		reliableMarginLeft: function() {

			// Support: IE <=8 only, Android 4.0 - 4.3 only, Firefox <=3 - 37
			if ( pixelPositionVal == null ) {
				computeStyleTests();
			}
			return reliableMarginLeftVal;
		}
	} );

	function computeStyleTests() {
		var contents, divStyle,
			documentElement = document.documentElement;

		// Setup
		documentElement.appendChild( container );

		div.style.cssText =

			// Support: Android 2.3
			// Vendor-prefix box-sizing
			"-webkit-box-sizing:border-box;box-sizing:border-box;" +
			"position:relative;display:block;" +
			"margin:auto;border:1px;padding:1px;" +
			"top:1%;width:50%";

		// Support: IE<9
		// Assume reasonable values in the absence of getComputedStyle
		pixelPositionVal = boxSizingReliableVal = reliableMarginLeftVal = false;
		pixelMarginRightVal = reliableMarginRightVal = true;

		// Check for getComputedStyle so that this code is not run in IE<9.
		if ( window.getComputedStyle ) {
			divStyle = window.getComputedStyle( div );
			pixelPositionVal = ( divStyle || {} ).top !== "1%";
			reliableMarginLeftVal = ( divStyle || {} ).marginLeft === "2px";
			boxSizingReliableVal = ( divStyle || { width: "4px" } ).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" } ).marginRight === "4px";

			// Support: Android 2.3 only
			// 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
			contents = div.appendChild( document.createElement( "div" ) );

			// Reset CSS: box-sizing; display; margin; border; padding
			contents.style.cssText = div.style.cssText =

				// Support: Android 2.3
				// Vendor-prefix box-sizing
				"-webkit-box-sizing:content-box;-moz-box-sizing:content-box;" +
				"box-sizing:content-box;display:block;margin:0;border:0;padding:0";
			contents.style.marginRight = contents.style.width = "0";
			div.style.width = "1px";

			reliableMarginRightVal =
				!parseFloat( ( window.getComputedStyle( contents ) || {} ).marginRight );

			div.removeChild( contents );
		}

		// Support: IE6-8
		// First check that getClientRects works as expected
		// Check if table cells still have offsetWidth/Height when they are set
		// to display:none and there are still other visible table cells in a
		// table row; if so, offsetWidth/Height are not reliable for use when
		// determining if an element has been hidden directly using
		// display:none (it is still safe to use offsets if a parent element is
		// hidden; don safety goggles and see bug #4512 for more information).
		div.style.display = "none";
		reliableHiddenOffsetsVal = div.getClientRects().length === 0;
		if ( reliableHiddenOffsetsVal ) {
			div.style.display = "";
			div.innerHTML = "<table><tr><td></td><td>t</td></tr></table>";
			contents = div.getElementsByTagName( "td" );
			contents[ 0 ].style.cssText = "margin:0;border:0;padding:0;display:none";
			reliableHiddenOffsetsVal = contents[ 0 ].offsetHeight === 0;
			if ( reliableHiddenOffsetsVal ) {
				contents[ 0 ].style.display = "";
				contents[ 1 ].style.display = "none";
				reliableHiddenOffsetsVal = contents[ 0 ].offsetHeight === 0;
			}
		}

		// Teardown
		documentElement.removeChild( container );
	}

} )();


var getStyles, curCSS,
	rposition = /^(top|right|bottom|left)$/;

if ( window.getComputedStyle ) {
	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 );
	};

	curCSS = function( elem, name, computed ) {
		var width, minWidth, maxWidth, ret,
			style = elem.style;

		computed = computed || getStyles( elem );

		// getPropertyValue is only needed for .css('filter') in IE9, see #12537
		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 );
		}

		if ( computed ) {

			// A tribute to the "awesome hack by Dean Edwards"
			// Chrome < 17 and Safari 5.0 uses "computed value"
			// instead of "used value" for margin-right
			// Safari 5.1.7 (at least) returns percentage for a larger set of 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;
			}
		}

		// Support: IE
		// IE returns zIndex value as an integer.
		return ret === undefined ?
			ret :
			ret + "";
	};
} else if ( documentElement.currentStyle ) {
	getStyles = function( elem ) {
		return elem.currentStyle;
	};

	curCSS = function( elem, name, computed ) {
		var left, rs, rsLeft, ret,
			style = elem.style;

		computed = computed || getStyles( elem );
		ret = computed ? computed[ name ] : undefined;

		// Avoid setting ret to empty string here
		// so we don't default to auto
		if ( ret == null && style && style[ name ] ) {
			ret = style[ name ];
		}

		// From the awesome hack by Dean Edwards
		// http://erik.eae.net/archives/2007/07/27/18.54.15/#comment-102291

		// If we're not dealing with a regular pixel number
		// but a number that has a weird ending, we need to convert it to pixels
		// but not position css attributes, as those are
		// proportional to the parent element instead
		// and we can't measure the parent instead because it
		// might trigger a "stacking dolls" problem
		if ( rnumnonpx.test( ret ) && !rposition.test( name ) ) {

			// Remember the original values
			left = style.left;
			rs = elem.runtimeStyle;
			rsLeft = rs && rs.left;

			// Put in the new values to get a computed value out
			if ( rsLeft ) {
				rs.left = elem.currentStyle.left;
			}
			style.left = name === "fontSize" ? "1em" : ret;
			ret = style.pixelLeft + "px";

			// Revert the changed values
			style.left = left;
			if ( rsLeft ) {
				rs.left = rsLeft;
			}
		}

		// Support: IE
		// IE returns zIndex value as an integer.
		return ret === undefined ?
			ret :
			ret + "" || "auto";
	};
}




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

		ralpha = /alpha\([^)]*\)/i,
	ropacity = /opacity\s*=\s*([^)]*)/i,

	// 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]).+)/,
	rnumsplit = new RegExp( "^(" + pnum + ")(.*)$", "i" ),

	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.charAt( 0 ).toUpperCase() + name.slice( 1 ),
		i = cssPrefixes.length;

	while ( i-- ) {
		name = cssPrefixes[ i ] + capName;
		if ( name in emptyStyle ) {
			return name;
		}
	}
}

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 ] = jQuery._data( 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 ] =
					jQuery._data( elem, "olddisplay", defaultDisplay( elem.nodeName ) );
			}
		} else {
			hidden = isHidden( elem );

			if ( display && display !== "none" || !hidden ) {
				jQuery._data(
					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;
}

function setPositiveNumber( elem, value, subtract ) {
	var matches = rnumsplit.exec( value );
	return matches ?

		// Guard against undefined "subtract", e.g., when used as in cssHooks
		Math.max( 0, matches[ 1 ] - ( subtract || 0 ) ) + ( matches[ 2 ] || "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 = support.boxSizing &&
			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;
		}

		// we need the 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";
}

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: {

		// normalize float css property
		"float": support.cssFloat ? "cssFloat" : "styleFloat"
	},

	// 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
		// followed by the 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. See: #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" );
			}

			// Fixes #8908, it can be done more correctly by specifing setters in cssHooks,
			// but it would mean to define eight
			// (for every problematic property) identical functions
			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 ) {

				// Support: IE
				// Swallow errors from 'invalid' CSS values (#5509)
				try {
					style[ name ] = value;
				} catch ( e ) {}
			}

		} 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 num, val, 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 );

		// gets hook for the prefixed version
		// followed by the unprefixed version
		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 ];
		}

		// Return, converting to number 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
				// however, it must have a current display style that would benefit from this
				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 styles = extra && getStyles( elem );
			return setPositiveNumber( elem, value, extra ?
				augmentWidthOrHeight(
					elem,
					name,
					extra,
					support.boxSizing &&
						jQuery.css( elem, "boxSizing", false, styles ) === "border-box",
					styles
				) : 0
			);
		}
	};
} );

if ( !support.opacity ) {
	jQuery.cssHooks.opacity = {
		get: function( elem, computed ) {

			// IE uses filters for opacity
			return ropacity.test( ( computed && elem.currentStyle ?
				elem.currentStyle.filter :
				elem.style.filter ) || "" ) ?
					( 0.01 * parseFloat( RegExp.$1 ) ) + "" :
					computed ? "1" : "";
		},

		set: function( elem, value ) {
			var style = elem.style,
				currentStyle = elem.currentStyle,
				opacity = jQuery.isNumeric( value ) ? "alpha(opacity=" + value * 100 + ")" : "",
				filter = currentStyle && currentStyle.filter || style.filter || "";

			// IE has trouble with opacity if it does not have layout
			// Force it by setting the zoom level
			style.zoom = 1;

			// if setting opacity to 1, and no other filters exist -
			// attempt to remove filter attribute #6652
			// if value === "", then remove inline opacity #12685
			if ( ( value >= 1 || value === "" ) &&
					jQuery.trim( filter.replace( ralpha, "" ) ) === "" &&
					style.removeAttribute ) {

				// Setting style.filter to null, "" & " " still leave "filter:" in the cssText
				// if "filter:" is present at all, clearType is disabled, we want to avoid this
				// style.removeAttribute is IE Only, but so apparently is this code path...
				style.removeAttribute( "filter" );

				// if there is no filter style applied in a css rule
				// or unset inline opacity, we are done
				if ( value === "" || currentStyle && !currentStyle.filter ) {
					return;
				}
			}

			// otherwise, set new filter values
			style.filter = ralpha.test( filter ) ?
				filter.replace( ralpha, opacity ) :
				filter + " " + opacity;
		}
	};
}

jQuery.cssHooks.marginRight = addGetHookIf( support.reliableMarginRight,
	function( elem, computed ) {
		if ( computed ) {
			return swap( elem, { "display": "inline-block" },
				curCSS, [ elem, "marginRight" ] );
		}
	}
);

jQuery.cssHooks.marginLeft = addGetHookIf( support.reliableMarginLeft,
	function( elem, computed ) {
		if ( computed ) {
			return (
				parseFloat( curCSS( elem, "marginLeft" ) ) ||

				// Support: IE<=11+
				// Running getBoundingClientRect on a disconnected node in IE throws an error
				// Support: IE8 only
				// getClientRects() errors on disconnected elems
				( jQuery.contains( elem.ownerDocument, elem ) ?
					elem.getBoundingClientRect().left -
						swap( elem, { marginLeft: 0 }, function() {
							return elem.getBoundingClientRect().left;
						} ) :
					0
				)
			) + "px";
		}
	}
);

// 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
			// so, 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 its
			// 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: IE <=9
// 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,
		attrs = { height: type },
		i = 0;

	// if we include width, step value is 1 to do all cssExpand values,
	// if we don't include width, 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 = jQuery._data( 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() {

			// doing this makes sure that the complete handler will be 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 IE does 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" ?
			jQuery._data( elem, "olddisplay" ) || defaultDisplay( elem.nodeName ) : display;

		if ( checkDisplay === "inline" && jQuery.css( elem, "float" ) === "none" ) {

			// inline-level elements accept inline-block;
			// block-level elements need to be inline with layout
			if ( !support.inlineBlockNeedsLayout || defaultDisplay( elem.nodeName ) === "inline" ) {
				style.display = "inline-block";
			} else {
				style.zoom = 1;
			}
		}
	}

	if ( opts.overflow ) {
		style.overflow = "hidden";
		if ( !support.shrinkWrapBlocks() ) {
			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 = jQuery._data( 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;
			jQuery._removeData( 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 wont overwrite keys already present.
			// also - reusing 'index' from above 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 || jQuery._data( 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 = jQuery._data( 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 = jQuery._data( 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,
		timers = jQuery.timers,
		i = 0;

	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 a,
		input = document.createElement( "input" ),
		div = document.createElement( "div" ),
		select = document.createElement( "select" ),
		opt = select.appendChild( document.createElement( "option" ) );

	// Setup
	div = document.createElement( "div" );
	div.setAttribute( "className", "t" );
	div.innerHTML = "  <link/><table></table><a href='/a'>a</a><input type='checkbox'/>";
	a = div.getElementsByTagName( "a" )[ 0 ];

	// Support: Windows Web Apps (WWA)
	// `type` must use .setAttribute for WWA (#14901)
	input.setAttribute( "type", "checkbox" );
	div.appendChild( input );

	a = div.getElementsByTagName( "a" )[ 0 ];

	// First batch of tests.
	a.style.cssText = "top:1px";

	// Test setAttribute on camelCase class.
	// If it works, we need attrFixes when doing get/setAttribute (ie6/7)
	support.getSetAttribute = div.className !== "t";

	// Get the style information from getAttribute
	// (IE uses .cssText instead)
	support.style = /top/.test( a.getAttribute( "style" ) );

	// Make sure that URLs aren't manipulated
	// (IE normalizes it by default)
	support.hrefNormalized = a.getAttribute( "href" ) === "/a";

	// Check the default checkbox/radio value ("" on WebKit; "on" elsewhere)
	support.checkOn = !!input.value;

	// Make sure that a selected-by-default option has a working selected property.
	// (WebKit defaults to false instead of true, IE too, if it's in an optgroup)
	support.optSelected = opt.selected;

	// Tests for enctype support on a form (#6743)
	support.enctype = !!document.createElement( "form" ).enctype;

	// Make sure that the options inside disabled selects aren't marked as disabled
	// (WebKit marks them as disabled)
	select.disabled = true;
	support.optDisabled = !opt.disabled;

	// Support: IE8 only
	// Check if we can trust getAttribute("value")
	input = document.createElement( "input" );
	input.setAttribute( "value", "" );
	support.input = input.getAttribute( "value" ) === "";

	// Check if an input maintains its value after becoming a radio
	input.value = "t";
	input.setAttribute( "type", "radio" );
	support.radioValue = input.value === "t";
} )();


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 ];

					// oldIE 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 ( jQuery.inArray( jQuery.valHooks.option.get( option ), values ) > -1 ) {

						// Support: IE6
						// When new option element is added to select box we need to
						// force reflow of newly added node in order to workaround delay
						// of initialization properties
						try {
							option.selected = optionSet = true;

						} catch ( _ ) {

							// Will be executed only in IE6
							option.scrollHeight;
						}

					} else {
						option.selected = false;
					}
				}

				// Force browsers to behave consistently when non-matching value is set
				if ( !optionSet ) {
					elem.selectedIndex = -1;
				}

				return options;
			}
		}
	}
} );

// 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;
		};
	}
} );




var nodeHook, boolHook,
	attrHandle = jQuery.expr.attrHandle,
	ruseDefault = /^(?:checked|selected)$/i,
	getSetAttribute = support.getSetAttribute,
	getSetInput = support.input;

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 : nodeHook );
		}

		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" ) ) {

					// Setting the type on a radio button after the value resets the value in IE8-9
					// Reset value to default in case type is set after value during creation
					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
					if ( getSetInput && getSetAttribute || !ruseDefault.test( name ) ) {
						elem[ propName ] = false;

					// Support: IE<9
					// Also clear defaultChecked/defaultSelected (if appropriate)
					} else {
						elem[ jQuery.camelCase( "default-" + name ) ] =
							elem[ propName ] = false;
					}

				// See #9699 for explanation of this approach (setting first, then removal)
				} else {
					jQuery.attr( elem, name, "" );
				}

				elem.removeAttribute( getSetAttribute ? name : propName );
			}
		}
	}
} );

// 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 if ( getSetInput && getSetAttribute || !ruseDefault.test( name ) ) {

			// IE<8 needs the *property* name
			elem.setAttribute( !getSetAttribute && jQuery.propFix[ name ] || name, name );

		} else {

			// Support: IE<9
			// Use defaultChecked and defaultSelected for oldIE
			elem[ jQuery.camelCase( "default-" + name ) ] = elem[ name ] = true;
		}
		return name;
	}
};

jQuery.each( jQuery.expr.match.bool.source.match( /\w+/g ), function( i, name ) {
	var getter = attrHandle[ name ] || jQuery.find.attr;

	if ( getSetInput && getSetAttribute || !ruseDefault.test( name ) ) {
		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;
		};
	} else {
		attrHandle[ name ] = function( elem, name, isXML ) {
			if ( !isXML ) {
				return elem[ jQuery.camelCase( "default-" + name ) ] ?
					name.toLowerCase() :
					null;
			}
		};
	}
} );

// fix oldIE attroperties
if ( !getSetInput || !getSetAttribute ) {
	jQuery.attrHooks.value = {
		set: function( elem, value, name ) {
			if ( jQuery.nodeName( elem, "input" ) ) {

				// Does not return so that setAttribute is also used
				elem.defaultValue = value;
			} else {

				// Use nodeHook if defined (#1954); otherwise setAttribute is fine
				return nodeHook && nodeHook.set( elem, value, name );
			}
		}
	};
}

// IE6/7 do not support getting/setting some attributes with get/setAttribute
if ( !getSetAttribute ) {

	// Use this for any attribute in IE6/7
	// This fixes almost every IE6/7 issue
	nodeHook = {
		set: function( elem, value, name ) {

			// Set the existing or create a new attribute node
			var ret = elem.getAttributeNode( name );
			if ( !ret ) {
				elem.setAttributeNode(
					( ret = elem.ownerDocument.createAttribute( name ) )
				);
			}

			ret.value = value += "";

			// Break association with cloned elements by also using setAttribute (#9646)
			if ( name === "value" || value === elem.getAttribute( name ) ) {
				return value;
			}
		}
	};

	// Some attributes are constructed with empty-string values when not defined
	attrHandle.id = attrHandle.name = attrHandle.coords =
		function( elem, name, isXML ) {
			var ret;
			if ( !isXML ) {
				return ( ret = elem.getAttributeNode( name ) ) && ret.value !== "" ?
					ret.value :
					null;
			}
		};

	// Fixing value retrieval on a button requires this module
	jQuery.valHooks.button = {
		get: function( elem, name ) {
			var ret = elem.getAttributeNode( name );
			if ( ret && ret.specified ) {
				return ret.value;
			}
		},
		set: nodeHook.set
	};

	// Set contenteditable to false on removals(#10429)
	// Setting to empty string throws an error as an invalid value
	jQuery.attrHooks.contenteditable = {
		set: function( elem, value, name ) {
			nodeHook.set( elem, value === "" ? false : value, name );
		}
	};

	// Set width and height to auto instead of 0 on empty string( Bug #8150 )
	// This is for removals
	jQuery.each( [ "width", "height" ], function( i, name ) {
		jQuery.attrHooks[ name ] = {
			set: function( elem, value ) {
				if ( value === "" ) {
					elem.setAttribute( name, "auto" );
					return value;
				}
			}
		};
	} );
}

if ( !support.style ) {
	jQuery.attrHooks.style = {
		get: function( elem ) {

			// Return undefined in the case of empty string
			// Note: IE uppercases css property names, but if we were to .toLowerCase()
			// .cssText, that would destroy case sensitivity in URL's, like in "background"
			return elem.style.cssText || undefined;
		},
		set: function( elem, value ) {
			return ( elem.style.cssText = value + "" );
		}
	};
}




var rfocusable = /^(?:input|select|textarea|button|object)$/i,
	rclickable = /^(?:a|area)$/i;

jQuery.fn.extend( {
	prop: function( name, value ) {
		return access( this, jQuery.prop, name, value, arguments.length > 1 );
	},

	removeProp: function( name ) {
		name = jQuery.propFix[ name ] || name;
		return this.each( function() {

			// try/catch handles cases where IE balks (such as removing a property on window)
			try {
				this[ name ] = undefined;
				delete this[ name ];
			} catch ( e ) {}
		} );
	}
} );

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"
	}
} );

// Some attributes require a special call on IE
// http://msdn.microsoft.com/en-us/library/ms536429%28VS.85%29.aspx
if ( !support.hrefNormalized ) {

	// href/src property should get the full normalized URL (#10299/#12915)
	jQuery.each( [ "href", "src" ], function( i, name ) {
		jQuery.propHooks[ name ] = {
			get: function( elem ) {
				return elem.getAttribute( name, 4 );
			}
		};
	} );
}

// Support: Safari, IE9+
// 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.selectedIndex;

				// Make sure that it also works with optgroups, see #5701
				if ( 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;
} );

// IE6/7 call enctype encoding
if ( !support.enctype ) {
	jQuery.propFix.enctype = "encoding";
}




var rclass = /[\t\r\n\f]/g;

function getClass( elem ) {
	return jQuery.attr( elem, "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 ) {
						jQuery.attr( elem, "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 ) {
						jQuery.attr( elem, "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
					jQuery._data( 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.
				jQuery.attr( this, "class",
					className || value === false ?
					"" :
					jQuery._data( 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;
	}
} );




// Return jQuery for attributes-only inclusion


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 );
	}
} );


var location = window.location;

var nonce = jQuery.now();

var rquery = ( /\?/ );



var rvalidtokens = /(,)|(\[|{)|(}|])|"(?:[^"\\\r\n]|\\["\\\/bfnrt]|\\u[\da-fA-F]{4})*"\s*:?|true|false|null|-?(?!0\d)\d+(?:\.\d+|)(?:[eE][+-]?\d+|)/g;

jQuery.parseJSON = function( data ) {

	// Attempt to parse using the native JSON parser first
	if ( window.JSON && window.JSON.parse ) {

		// Support: Android 2.3
		// Workaround failure to string-cast null input
		return window.JSON.parse( data + "" );
	}

	var requireNonComma,
		depth = null,
		str = jQuery.trim( data + "" );

	// Guard against invalid (and possibly dangerous) input by ensuring that nothing remains
	// after removing valid tokens
	return str && !jQuery.trim( str.replace( rvalidtokens, function( token, comma, open, close ) {

		// Force termination if we see a misplaced comma
		if ( requireNonComma && comma ) {
			depth = 0;
		}

		// Perform no more replacements after returning to outermost depth
		if ( depth === 0 ) {
			return token;
		}

		// Commas must not follow "[", "{", or ","
		requireNonComma = open || comma;

		// Determine new depth
		// array/object open ("[" or "{"): depth += true - false (increment)
		// array/object close ("]" or "}"): depth += false - true (decrement)
		// other cases ("," or primitive): depth += true - true (numeric cast)
		depth += !close - !open;

		// Remove this token
		return "";
	} ) ) ?
		( Function( "return " + str ) )() :
		jQuery.error( "Invalid JSON: " + data );
};


// Cross-browser xml parsing
jQuery.parseXML = function( data ) {
	var xml, tmp;
	if ( !data || typeof data !== "string" ) {
		return null;
	}
	try {
		if ( window.DOMParser ) { // Standard
			tmp = new window.DOMParser();
			xml = tmp.parseFromString( data, "text/xml" );
		} else { // IE
			xml = new window.ActiveXObject( "Microsoft.XMLDOM" );
			xml.async = "false";
			xml.loadXML( data );
		}
	} catch ( e ) {
		xml = undefined;
	}
	if ( !xml || !xml.documentElement || xml.getElementsByTagName( "parsererror" ).length ) {
		jQuery.error( "Invalid XML: " + data );
	}
	return xml;
};


var
	rhash = /#.*$/,
	rts = /([?&])_=[^&]*/,

	// IE leaves an \r character at EOL
	rheaders = /^(.*?):[ \t]*([^\r\n]*)\r?$/mg,

	// #7653, #8125, #8152: local protocol detection
	rlocalProtocol = /^(?:about|app|app-storage|.+-extension|file|res|widget):$/,
	rnoContent = /^(?:GET|HEAD)$/,
	rprotocol = /^\/\//,
	rurl = /^([\w.+-]+:)(?:\/\/(?:[^\/?#]*@|)([^\/?#:]*)(?::(\d+)|)|)/,

	/* 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( "*" ),

	// Document location
	ajaxLocation = location.href,

	// Segment location into parts
	ajaxLocParts = rurl.exec( ajaxLocation.toLowerCase() ) || [];

// 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.charAt( 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 deep, key,
		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 firstDataType, ct, finalDataType, type,
		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" ] ) { // jscs:ignore requireDotNotation
						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: ajaxLocation,
		type: "GET",
		isLocal: rlocalProtocol.test( ajaxLocParts[ 1 ] ),
		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

			// Cross-domain detection vars
			parts,

			// Loop variable
			i,

			// URL without anti-cache param
			cacheURL,

			// Response headers as string
			responseHeadersString,

			// timeout handle
			timeoutTimer,

			// To know if global events are to be dispatched
			fireGlobals,

			transport,

			// Response headers
			responseHeaders,

			// 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 (#5866: IE7 issue with protocol-less urls)
		// 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 || ajaxLocation ) + "" )
			.replace( rhash, "" )
			.replace( rprotocol, ajaxLocParts[ 1 ] + "//" );

		// 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 we have a protocol:host:port mismatch
		if ( s.crossDomain == null ) {
			parts = rurl.exec( s.url.toLowerCase() );
			s.crossDomain = !!( parts &&
				( parts[ 1 ] !== ajaxLocParts[ 1 ] || parts[ 2 ] !== ajaxLocParts[ 2 ] ||
					( parts[ 3 ] || ( parts[ 1 ] === "http:" ? "80" : "443" ) ) !==
						( ajaxLocParts[ 3 ] || ( ajaxLocParts[ 1 ] === "http:" ? "80" : "443" ) ) )
			);
		}

		// 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 {

				// We extract error from statusText
				// then normalize statusText and status 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",
		cache: true,
		async: false,
		global: false,
		"throws": true
	} );
};


jQuery.fn.extend( {
	wrapAll: function( html ) {
		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
			var 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.firstChild && elem.firstChild.nodeType === 1 ) {
					elem = elem.firstChild;
				}

				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();
	}
} );


function getDisplay( elem ) {
	return elem.style && elem.style.display || jQuery.css( elem, "display" );
}

function filterHidden( elem ) {
	while ( elem && elem.nodeType === 1 ) {
		if ( getDisplay( elem ) === "none" || elem.type === "hidden" ) {
			return true;
		}
		elem = elem.parentNode;
	}
	return false;
}

jQuery.expr.filters.hidden = function( elem ) {

	// Support: Opera <= 12.12
	// Opera reports offsetWidths and offsetHeights less than zero on some elements
	return support.reliableHiddenOffsets() ?
		( elem.offsetWidth <= 0 && elem.offsetHeight <= 0 &&
			!elem.getClientRects().length ) :
			filterHidden( elem );
};

jQuery.expr.filters.visible = function( elem ) {
	return !jQuery.expr.filters.hidden( elem );
};




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();
	}
} );


// Create the request object
// (This is still attached to ajaxSettings for backward compatibility)
jQuery.ajaxSettings.xhr = window.ActiveXObject !== undefined ?

	// Support: IE6-IE8
	function() {

		// XHR cannot access local files, always use ActiveX for that case
		if ( this.isLocal ) {
			return createActiveXHR();
		}

		// Support: IE 9-11
		// IE seems to error on cross-domain PATCH requests when ActiveX XHR
		// is used. In IE 9+ always use the native XHR.
		// Note: this condition won't catch Edge as it doesn't define
		// document.documentMode but it also doesn't support ActiveX so it won't
		// reach this code.
		if ( document.documentMode > 8 ) {
			return createStandardXHR();
		}

		// Support: IE<9
		// oldIE XHR does not support non-RFC2616 methods (#13240)
		// See http://msdn.microsoft.com/en-us/library/ie/ms536648(v=vs.85).aspx
		// and http://www.w3.org/Protocols/rfc2616/rfc2616-sec9.html#sec9
		// Although this check for six methods instead of eight
		// since IE also does not support "trace" and "connect"
		return /^(get|post|head|put|delete|options)$/i.test( this.type ) &&
			createStandardXHR() || createActiveXHR();
	} :

	// For all other browsers, use the standard XMLHttpRequest object
	createStandardXHR;

var xhrId = 0,
	xhrCallbacks = {},
	xhrSupported = jQuery.ajaxSettings.xhr();

// Support: IE<10
// Open requests must be manually aborted on unload (#5280)
// See https://support.microsoft.com/kb/2856746 for more info
if ( window.attachEvent ) {
	window.attachEvent( "onunload", function() {
		for ( var key in xhrCallbacks ) {
			xhrCallbacks[ key ]( undefined, true );
		}
	} );
}

// Determine support properties
support.cors = !!xhrSupported && ( "withCredentials" in xhrSupported );
xhrSupported = support.ajax = !!xhrSupported;

// Create transport if the browser can provide an xhr
if ( xhrSupported ) {

	jQuery.ajaxTransport( function( options ) {

		// Cross domain only allowed if supported through XMLHttpRequest
		if ( !options.crossDomain || support.cors ) {

			var callback;

			return {
				send: function( headers, complete ) {
					var i,
						xhr = options.xhr(),
						id = ++xhrId;

					// Open the socket
					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 ) {

						// Support: IE<9
						// IE's ActiveXObject throws a 'Type Mismatch' exception when setting
						// request header to a null-value.
						//
						// To keep consistent with other XHR implementations, cast the value
						// to string and ignore `undefined`.
						if ( headers[ i ] !== undefined ) {
							xhr.setRequestHeader( i, headers[ i ] + "" );
						}
					}

					// Do send the request
					// This may raise an exception which is actually
					// handled in jQuery.ajax (so no try/catch here)
					xhr.send( ( options.hasContent && options.data ) || null );

					// Listener
					callback = function( _, isAbort ) {
						var status, statusText, responses;

						// Was never called and is aborted or complete
						if ( callback && ( isAbort || xhr.readyState === 4 ) ) {

							// Clean up
							delete xhrCallbacks[ id ];
							callback = undefined;
							xhr.onreadystatechange = jQuery.noop;

							// Abort manually if needed
							if ( isAbort ) {
								if ( xhr.readyState !== 4 ) {
									xhr.abort();
								}
							} else {
								responses = {};
								status = xhr.status;

								// Support: IE<10
								// Accessing binary-data responseText throws an exception
								// (#11426)
								if ( typeof xhr.responseText === "string" ) {
									responses.text = xhr.responseText;
								}

								// Firefox throws an exception when accessing
								// statusText for faulty cross-domain requests
								try {
									statusText = xhr.statusText;
								} catch ( e ) {

									// We normalize with Webkit giving an empty statusText
									statusText = "";
								}

								// Filter status for non standard behaviors

								// If the request is local and we have data: assume a success
								// (success with no data won't get notified, that's the best we
								// can do given current implementations)
								if ( !status && options.isLocal && !options.crossDomain ) {
									status = responses.text ? 200 : 404;

								// IE - #1450: sometimes returns 1223 when it should be 204
								} else if ( status === 1223 ) {
									status = 204;
								}
							}
						}

						// Call complete if needed
						if ( responses ) {
							complete( status, statusText, responses, xhr.getAllResponseHeaders() );
						}
					};

					// Do send the request
					// `xhr.send` may raise an exception, but it will be
					// handled in jQuery.ajax (so no try/catch here)
					if ( !options.async ) {

						// If we're in sync mode we fire the callback
						callback();
					} else if ( xhr.readyState === 4 ) {

						// (IE6 & IE7) if it's in cache and has been
						// retrieved directly we need to fire the callback
						window.setTimeout( callback );
					} else {

						// Register the callback, but delay it in case `xhr.send` throws
						// Add to the list of active xhr callbacks
						xhr.onreadystatechange = xhrCallbacks[ id ] = callback;
					}
				},

				abort: function() {
					if ( callback ) {
						callback( undefined, true );
					}
				}
			};
		}
	} );
}

// Functions to create xhrs
function createStandardXHR() {
	try {
		return new window.XMLHttpRequest();
	} catch ( e ) {}
}

function createActiveXHR() {
	try {
		return new window.ActiveXObject( "Microsoft.XMLHTTP" );
	} catch ( e ) {}
}




// 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 global
jQuery.ajaxPrefilter( "script", function( s ) {
	if ( s.cache === undefined ) {
		s.cache = false;
	}
	if ( s.crossDomain ) {
		s.type = "GET";
		s.global = false;
	}
} );

// Bind script tag hack transport
jQuery.ajaxTransport( "script", function( s ) {

	// This transport only deals with cross domain requests
	if ( s.crossDomain ) {

		var script,
			head = document.head || jQuery( "head" )[ 0 ] || document.documentElement;

		return {

			send: function( _, callback ) {

				script = document.createElement( "script" );

				script.async = true;

				if ( s.scriptCharset ) {
					script.charset = s.scriptCharset;
				}

				script.src = s.url;

				// Attach handlers for all browsers
				script.onload = script.onreadystatechange = function( _, isAbort ) {

					if ( isAbort || !script.readyState || /loaded|complete/.test( script.readyState ) ) {

						// Handle memory leak in IE
						script.onload = script.onreadystatechange = null;

						// Remove the script
						if ( script.parentNode ) {
							script.parentNode.removeChild( script );
						}

						// Dereference the script
						script = null;

						// Callback if not abort
						if ( !isAbort ) {
							callback( 200, "success" );
						}
					}
				};

				// Circumvent IE6 bugs with base elements (#2709 and #4378) by prepending
				// Use native DOM manipulation to avoid our domManip AJAX trickery
				head.insertBefore( script, head.firstChild );
			},

			abort: function() {
				if ( script ) {
					script.onload( undefined, true );
				}
			}
		};
	}
} );




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";
	}
} );




// data: 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.length ) );
		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 || elem.parentWindow :
			false;
}

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" ) &&
			jQuery.inArray( "auto", [ curCSSTop, curCSSLeft ] ) > -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,
			box = { top: 0, left: 0 },
			elem = this[ 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;
		}

		// If we don't have gBCR, just use 0,0 rather than error
		// BlackBerry 5, iOS 3 (original iPhone)
		if ( typeof elem.getBoundingClientRect !== "undefined" ) {
			box = elem.getBoundingClientRect();
		}
		win = getWindow( doc );
		return {
			top: box.top  + ( win.pageYOffset || docElem.scrollTop )  - ( docElem.clientTop  || 0 ),
			left: box.left + ( win.pageXOffset || docElem.scrollLeft ) - ( docElem.clientLeft || 0 )
		};
	},

	position: function() {
		if ( !this[ 0 ] ) {
			return;
		}

		var offsetParent, offset,
			parentOffset = { top: 0, left: 0 },
			elem = this[ 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" ) {

			// we assume that getBoundingClientRect is available 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
		// note: when an element has margin: auto the offsetLeft and marginLeft
		// are the same in Safari causing offset.left to incorrectly be 0
		return {
			top:  offset.top  - parentOffset.top - jQuery.css( elem, "marginTop", true ),
			left: offset.left - parentOffset.left - jQuery.css( elem, "marginLeft", true )
		};
	},

	offsetParent: function() {
		return this.map( function() {
			var offsetParent = this.offsetParent;

			while ( offsetParent && ( !jQuery.nodeName( offsetParent, "html" ) &&
				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 = /Y/.test( prop );

	jQuery.fn[ method ] = function( val ) {
		return access( this, function( elem, method, val ) {
			var win = getWindow( elem );

			if ( val === undefined ) {
				return win ? ( prop in win ) ? win[ prop ] :
					win.document.documentElement[ method ] :
					elem[ method ];
			}

			if ( win ) {
				win.scrollTo(
					!top ? val : jQuery( win ).scrollLeft(),
					top ? val : jQuery( win ).scrollTop()
				);

			} else {
				elem[ method ] = val;
			}
		}, method, val, arguments.length, null );
	};
} );

// 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
// getComputedStyle returns percent when specified for top/left/bottom/right
// rather than make the css module depend on the offset module, we 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
					// unfortunately, this causes bug #3838 in IE6/8 only,
					// but there is currently no good, small way to fix it.
					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 );
	}
} );

// The number of elements contained in the matched element set
jQuery.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;
}));

define('jquery-private',['jquery'], function (jq) {
    return jq.noConflict( true );
});

//     Underscore.js 1.8.3
//     http://underscorejs.org
//     (c) 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
//     Underscore may be freely distributed under the MIT license.

(function() {

  // Baseline setup
  // --------------

  // Establish the root object, `window` in the browser, or `exports` on the server.
  var root = this;

  // Save the previous value of the `_` variable.
  var previousUnderscore = root._;

  // Save bytes in the minified (but not gzipped) version:
  var ArrayProto = Array.prototype, ObjProto = Object.prototype, FuncProto = Function.prototype;

  // Create quick reference variables for speed access to core prototypes.
  var
    push             = ArrayProto.push,
    slice            = ArrayProto.slice,
    toString         = ObjProto.toString,
    hasOwnProperty   = ObjProto.hasOwnProperty;

  // All **ECMAScript 5** native function implementations that we hope to use
  // are declared here.
  var
    nativeIsArray      = Array.isArray,
    nativeKeys         = Object.keys,
    nativeBind         = FuncProto.bind,
    nativeCreate       = Object.create;

  // Naked function reference for surrogate-prototype-swapping.
  var Ctor = function(){};

  // Create a safe reference to the Underscore object for use below.
  var _ = function(obj) {
    if (obj instanceof _) return obj;
    if (!(this instanceof _)) return new _(obj);
    this._wrapped = obj;
  };

  // Export the Underscore object for **Node.js**, with
  // backwards-compatibility for the old `require()` API. If we're in
  // the browser, add `_` as a global object.
  if (typeof exports !== 'undefined') {
    if (typeof module !== 'undefined' && module.exports) {
      exports = module.exports = _;
    }
    exports._ = _;
  } else {
    root._ = _;
  }

  // Current version.
  _.VERSION = '1.8.3';

  // Internal function that returns an efficient (for current engines) version
  // of the passed-in callback, to be repeatedly applied in other Underscore
  // functions.
  var optimizeCb = function(func, context, argCount) {
    if (context === void 0) return func;
    switch (argCount == null ? 3 : argCount) {
      case 1: return function(value) {
        return func.call(context, value);
      };
      case 2: return function(value, other) {
        return func.call(context, value, other);
      };
      case 3: return function(value, index, collection) {
        return func.call(context, value, index, collection);
      };
      case 4: return function(accumulator, value, index, collection) {
        return func.call(context, accumulator, value, index, collection);
      };
    }
    return function() {
      return func.apply(context, arguments);
    };
  };

  // A mostly-internal function to generate callbacks that can be applied
  // to each element in a collection, returning the desired result — either
  // identity, an arbitrary callback, a property matcher, or a property accessor.
  var cb = function(value, context, argCount) {
    if (value == null) return _.identity;
    if (_.isFunction(value)) return optimizeCb(value, context, argCount);
    if (_.isObject(value)) return _.matcher(value);
    return _.property(value);
  };
  _.iteratee = function(value, context) {
    return cb(value, context, Infinity);
  };

  // An internal function for creating assigner functions.
  var createAssigner = function(keysFunc, undefinedOnly) {
    return function(obj) {
      var length = arguments.length;
      if (length < 2 || obj == null) return obj;
      for (var index = 1; index < length; index++) {
        var source = arguments[index],
            keys = keysFunc(source),
            l = keys.length;
        for (var i = 0; i < l; i++) {
          var key = keys[i];
          if (!undefinedOnly || obj[key] === void 0) obj[key] = source[key];
        }
      }
      return obj;
    };
  };

  // An internal function for creating a new object that inherits from another.
  var baseCreate = function(prototype) {
    if (!_.isObject(prototype)) return {};
    if (nativeCreate) return nativeCreate(prototype);
    Ctor.prototype = prototype;
    var result = new Ctor;
    Ctor.prototype = null;
    return result;
  };

  var property = function(key) {
    return function(obj) {
      return obj == null ? void 0 : obj[key];
    };
  };

  // Helper for collection methods to determine whether a collection
  // should be iterated as an array or as an object
  // Related: http://people.mozilla.org/~jorendorff/es6-draft.html#sec-tolength
  // Avoids a very nasty iOS 8 JIT bug on ARM-64. #2094
  var MAX_ARRAY_INDEX = Math.pow(2, 53) - 1;
  var getLength = property('length');
  var isArrayLike = function(collection) {
    var length = getLength(collection);
    return typeof length == 'number' && length >= 0 && length <= MAX_ARRAY_INDEX;
  };

  // Collection Functions
  // --------------------

  // The cornerstone, an `each` implementation, aka `forEach`.
  // Handles raw objects in addition to array-likes. Treats all
  // sparse array-likes as if they were dense.
  _.each = _.forEach = function(obj, iteratee, context) {
    iteratee = optimizeCb(iteratee, context);
    var i, length;
    if (isArrayLike(obj)) {
      for (i = 0, length = obj.length; i < length; i++) {
        iteratee(obj[i], i, obj);
      }
    } else {
      var keys = _.keys(obj);
      for (i = 0, length = keys.length; i < length; i++) {
        iteratee(obj[keys[i]], keys[i], obj);
      }
    }
    return obj;
  };

  // Return the results of applying the iteratee to each element.
  _.map = _.collect = function(obj, iteratee, context) {
    iteratee = cb(iteratee, context);
    var keys = !isArrayLike(obj) && _.keys(obj),
        length = (keys || obj).length,
        results = Array(length);
    for (var index = 0; index < length; index++) {
      var currentKey = keys ? keys[index] : index;
      results[index] = iteratee(obj[currentKey], currentKey, obj);
    }
    return results;
  };

  // Create a reducing function iterating left or right.
  function createReduce(dir) {
    // Optimized iterator function as using arguments.length
    // in the main function will deoptimize the, see #1991.
    function iterator(obj, iteratee, memo, keys, index, length) {
      for (; index >= 0 && index < length; index += dir) {
        var currentKey = keys ? keys[index] : index;
        memo = iteratee(memo, obj[currentKey], currentKey, obj);
      }
      return memo;
    }

    return function(obj, iteratee, memo, context) {
      iteratee = optimizeCb(iteratee, context, 4);
      var keys = !isArrayLike(obj) && _.keys(obj),
          length = (keys || obj).length,
          index = dir > 0 ? 0 : length - 1;
      // Determine the initial value if none is provided.
      if (arguments.length < 3) {
        memo = obj[keys ? keys[index] : index];
        index += dir;
      }
      return iterator(obj, iteratee, memo, keys, index, length);
    };
  }

  // **Reduce** builds up a single result from a list of values, aka `inject`,
  // or `foldl`.
  _.reduce = _.foldl = _.inject = createReduce(1);

  // The right-associative version of reduce, also known as `foldr`.
  _.reduceRight = _.foldr = createReduce(-1);

  // Return the first value which passes a truth test. Aliased as `detect`.
  _.find = _.detect = function(obj, predicate, context) {
    var key;
    if (isArrayLike(obj)) {
      key = _.findIndex(obj, predicate, context);
    } else {
      key = _.findKey(obj, predicate, context);
    }
    if (key !== void 0 && key !== -1) return obj[key];
  };

  // Return all the elements that pass a truth test.
  // Aliased as `select`.
  _.filter = _.select = function(obj, predicate, context) {
    var results = [];
    predicate = cb(predicate, context);
    _.each(obj, function(value, index, list) {
      if (predicate(value, index, list)) results.push(value);
    });
    return results;
  };

  // Return all the elements for which a truth test fails.
  _.reject = function(obj, predicate, context) {
    return _.filter(obj, _.negate(cb(predicate)), context);
  };

  // Determine whether all of the elements match a truth test.
  // Aliased as `all`.
  _.every = _.all = function(obj, predicate, context) {
    predicate = cb(predicate, context);
    var keys = !isArrayLike(obj) && _.keys(obj),
        length = (keys || obj).length;
    for (var index = 0; index < length; index++) {
      var currentKey = keys ? keys[index] : index;
      if (!predicate(obj[currentKey], currentKey, obj)) return false;
    }
    return true;
  };

  // Determine if at least one element in the object matches a truth test.
  // Aliased as `any`.
  _.some = _.any = function(obj, predicate, context) {
    predicate = cb(predicate, context);
    var keys = !isArrayLike(obj) && _.keys(obj),
        length = (keys || obj).length;
    for (var index = 0; index < length; index++) {
      var currentKey = keys ? keys[index] : index;
      if (predicate(obj[currentKey], currentKey, obj)) return true;
    }
    return false;
  };

  // Determine if the array or object contains a given item (using `===`).
  // Aliased as `includes` and `include`.
  _.contains = _.includes = _.include = function(obj, item, fromIndex, guard) {
    if (!isArrayLike(obj)) obj = _.values(obj);
    if (typeof fromIndex != 'number' || guard) fromIndex = 0;
    return _.indexOf(obj, item, fromIndex) >= 0;
  };

  // Invoke a method (with arguments) on every item in a collection.
  _.invoke = function(obj, method) {
    var args = slice.call(arguments, 2);
    var isFunc = _.isFunction(method);
    return _.map(obj, function(value) {
      var func = isFunc ? method : value[method];
      return func == null ? func : func.apply(value, args);
    });
  };

  // Convenience version of a common use case of `map`: fetching a property.
  _.pluck = function(obj, key) {
    return _.map(obj, _.property(key));
  };

  // Convenience version of a common use case of `filter`: selecting only objects
  // containing specific `key:value` pairs.
  _.where = function(obj, attrs) {
    return _.filter(obj, _.matcher(attrs));
  };

  // Convenience version of a common use case of `find`: getting the first object
  // containing specific `key:value` pairs.
  _.findWhere = function(obj, attrs) {
    return _.find(obj, _.matcher(attrs));
  };

  // Return the maximum element (or element-based computation).
  _.max = function(obj, iteratee, context) {
    var result = -Infinity, lastComputed = -Infinity,
        value, computed;
    if (iteratee == null && obj != null) {
      obj = isArrayLike(obj) ? obj : _.values(obj);
      for (var i = 0, length = obj.length; i < length; i++) {
        value = obj[i];
        if (value > result) {
          result = value;
        }
      }
    } else {
      iteratee = cb(iteratee, context);
      _.each(obj, function(value, index, list) {
        computed = iteratee(value, index, list);
        if (computed > lastComputed || computed === -Infinity && result === -Infinity) {
          result = value;
          lastComputed = computed;
        }
      });
    }
    return result;
  };

  // Return the minimum element (or element-based computation).
  _.min = function(obj, iteratee, context) {
    var result = Infinity, lastComputed = Infinity,
        value, computed;
    if (iteratee == null && obj != null) {
      obj = isArrayLike(obj) ? obj : _.values(obj);
      for (var i = 0, length = obj.length; i < length; i++) {
        value = obj[i];
        if (value < result) {
          result = value;
        }
      }
    } else {
      iteratee = cb(iteratee, context);
      _.each(obj, function(value, index, list) {
        computed = iteratee(value, index, list);
        if (computed < lastComputed || computed === Infinity && result === Infinity) {
          result = value;
          lastComputed = computed;
        }
      });
    }
    return result;
  };

  // Shuffle a collection, using the modern version of the
  // [Fisher-Yates shuffle](http://en.wikipedia.org/wiki/Fisher–Yates_shuffle).
  _.shuffle = function(obj) {
    var set = isArrayLike(obj) ? obj : _.values(obj);
    var length = set.length;
    var shuffled = Array(length);
    for (var index = 0, rand; index < length; index++) {
      rand = _.random(0, index);
      if (rand !== index) shuffled[index] = shuffled[rand];
      shuffled[rand] = set[index];
    }
    return shuffled;
  };

  // Sample **n** random values from a collection.
  // If **n** is not specified, returns a single random element.
  // The internal `guard` argument allows it to work with `map`.
  _.sample = function(obj, n, guard) {
    if (n == null || guard) {
      if (!isArrayLike(obj)) obj = _.values(obj);
      return obj[_.random(obj.length - 1)];
    }
    return _.shuffle(obj).slice(0, Math.max(0, n));
  };

  // Sort the object's values by a criterion produced by an iteratee.
  _.sortBy = function(obj, iteratee, context) {
    iteratee = cb(iteratee, context);
    return _.pluck(_.map(obj, function(value, index, list) {
      return {
        value: value,
        index: index,
        criteria: iteratee(value, index, list)
      };
    }).sort(function(left, right) {
      var a = left.criteria;
      var b = right.criteria;
      if (a !== b) {
        if (a > b || a === void 0) return 1;
        if (a < b || b === void 0) return -1;
      }
      return left.index - right.index;
    }), 'value');
  };

  // An internal function used for aggregate "group by" operations.
  var group = function(behavior) {
    return function(obj, iteratee, context) {
      var result = {};
      iteratee = cb(iteratee, context);
      _.each(obj, function(value, index) {
        var key = iteratee(value, index, obj);
        behavior(result, value, key);
      });
      return result;
    };
  };

  // Groups the object's values by a criterion. Pass either a string attribute
  // to group by, or a function that returns the criterion.
  _.groupBy = group(function(result, value, key) {
    if (_.has(result, key)) result[key].push(value); else result[key] = [value];
  });

  // Indexes the object's values by a criterion, similar to `groupBy`, but for
  // when you know that your index values will be unique.
  _.indexBy = group(function(result, value, key) {
    result[key] = value;
  });

  // Counts instances of an object that group by a certain criterion. Pass
  // either a string attribute to count by, or a function that returns the
  // criterion.
  _.countBy = group(function(result, value, key) {
    if (_.has(result, key)) result[key]++; else result[key] = 1;
  });

  // Safely create a real, live array from anything iterable.
  _.toArray = function(obj) {
    if (!obj) return [];
    if (_.isArray(obj)) return slice.call(obj);
    if (isArrayLike(obj)) return _.map(obj, _.identity);
    return _.values(obj);
  };

  // Return the number of elements in an object.
  _.size = function(obj) {
    if (obj == null) return 0;
    return isArrayLike(obj) ? obj.length : _.keys(obj).length;
  };

  // Split a collection into two arrays: one whose elements all satisfy the given
  // predicate, and one whose elements all do not satisfy the predicate.
  _.partition = function(obj, predicate, context) {
    predicate = cb(predicate, context);
    var pass = [], fail = [];
    _.each(obj, function(value, key, obj) {
      (predicate(value, key, obj) ? pass : fail).push(value);
    });
    return [pass, fail];
  };

  // Array Functions
  // ---------------

  // Get the first element of an array. Passing **n** will return the first N
  // values in the array. Aliased as `head` and `take`. The **guard** check
  // allows it to work with `_.map`.
  _.first = _.head = _.take = function(array, n, guard) {
    if (array == null) return void 0;
    if (n == null || guard) return array[0];
    return _.initial(array, array.length - n);
  };

  // Returns everything but the last entry of the array. Especially useful on
  // the arguments object. Passing **n** will return all the values in
  // the array, excluding the last N.
  _.initial = function(array, n, guard) {
    return slice.call(array, 0, Math.max(0, array.length - (n == null || guard ? 1 : n)));
  };

  // Get the last element of an array. Passing **n** will return the last N
  // values in the array.
  _.last = function(array, n, guard) {
    if (array == null) return void 0;
    if (n == null || guard) return array[array.length - 1];
    return _.rest(array, Math.max(0, array.length - n));
  };

  // Returns everything but the first entry of the array. Aliased as `tail` and `drop`.
  // Especially useful on the arguments object. Passing an **n** will return
  // the rest N values in the array.
  _.rest = _.tail = _.drop = function(array, n, guard) {
    return slice.call(array, n == null || guard ? 1 : n);
  };

  // Trim out all falsy values from an array.
  _.compact = function(array) {
    return _.filter(array, _.identity);
  };

  // Internal implementation of a recursive `flatten` function.
  var flatten = function(input, shallow, strict, startIndex) {
    var output = [], idx = 0;
    for (var i = startIndex || 0, length = getLength(input); i < length; i++) {
      var value = input[i];
      if (isArrayLike(value) && (_.isArray(value) || _.isArguments(value))) {
        //flatten current level of array or arguments object
        if (!shallow) value = flatten(value, shallow, strict);
        var j = 0, len = value.length;
        output.length += len;
        while (j < len) {
          output[idx++] = value[j++];
        }
      } else if (!strict) {
        output[idx++] = value;
      }
    }
    return output;
  };

  // Flatten out an array, either recursively (by default), or just one level.
  _.flatten = function(array, shallow) {
    return flatten(array, shallow, false);
  };

  // Return a version of the array that does not contain the specified value(s).
  _.without = function(array) {
    return _.difference(array, slice.call(arguments, 1));
  };

  // Produce a duplicate-free version of the array. If the array has already
  // been sorted, you have the option of using a faster algorithm.
  // Aliased as `unique`.
  _.uniq = _.unique = function(array, isSorted, iteratee, context) {
    if (!_.isBoolean(isSorted)) {
      context = iteratee;
      iteratee = isSorted;
      isSorted = false;
    }
    if (iteratee != null) iteratee = cb(iteratee, context);
    var result = [];
    var seen = [];
    for (var i = 0, length = getLength(array); i < length; i++) {
      var value = array[i],
          computed = iteratee ? iteratee(value, i, array) : value;
      if (isSorted) {
        if (!i || seen !== computed) result.push(value);
        seen = computed;
      } else if (iteratee) {
        if (!_.contains(seen, computed)) {
          seen.push(computed);
          result.push(value);
        }
      } else if (!_.contains(result, value)) {
        result.push(value);
      }
    }
    return result;
  };

  // Produce an array that contains the union: each distinct element from all of
  // the passed-in arrays.
  _.union = function() {
    return _.uniq(flatten(arguments, true, true));
  };

  // Produce an array that contains every item shared between all the
  // passed-in arrays.
  _.intersection = function(array) {
    var result = [];
    var argsLength = arguments.length;
    for (var i = 0, length = getLength(array); i < length; i++) {
      var item = array[i];
      if (_.contains(result, item)) continue;
      for (var j = 1; j < argsLength; j++) {
        if (!_.contains(arguments[j], item)) break;
      }
      if (j === argsLength) result.push(item);
    }
    return result;
  };

  // Take the difference between one array and a number of other arrays.
  // Only the elements present in just the first array will remain.
  _.difference = function(array) {
    var rest = flatten(arguments, true, true, 1);
    return _.filter(array, function(value){
      return !_.contains(rest, value);
    });
  };

  // Zip together multiple lists into a single array -- elements that share
  // an index go together.
  _.zip = function() {
    return _.unzip(arguments);
  };

  // Complement of _.zip. Unzip accepts an array of arrays and groups
  // each array's elements on shared indices
  _.unzip = function(array) {
    var length = array && _.max(array, getLength).length || 0;
    var result = Array(length);

    for (var index = 0; index < length; index++) {
      result[index] = _.pluck(array, index);
    }
    return result;
  };

  // Converts lists into objects. Pass either a single array of `[key, value]`
  // pairs, or two parallel arrays of the same length -- one of keys, and one of
  // the corresponding values.
  _.object = function(list, values) {
    var result = {};
    for (var i = 0, length = getLength(list); i < length; i++) {
      if (values) {
        result[list[i]] = values[i];
      } else {
        result[list[i][0]] = list[i][1];
      }
    }
    return result;
  };

  // Generator function to create the findIndex and findLastIndex functions
  function createPredicateIndexFinder(dir) {
    return function(array, predicate, context) {
      predicate = cb(predicate, context);
      var length = getLength(array);
      var index = dir > 0 ? 0 : length - 1;
      for (; index >= 0 && index < length; index += dir) {
        if (predicate(array[index], index, array)) return index;
      }
      return -1;
    };
  }

  // Returns the first index on an array-like that passes a predicate test
  _.findIndex = createPredicateIndexFinder(1);
  _.findLastIndex = createPredicateIndexFinder(-1);

  // Use a comparator function to figure out the smallest index at which
  // an object should be inserted so as to maintain order. Uses binary search.
  _.sortedIndex = function(array, obj, iteratee, context) {
    iteratee = cb(iteratee, context, 1);
    var value = iteratee(obj);
    var low = 0, high = getLength(array);
    while (low < high) {
      var mid = Math.floor((low + high) / 2);
      if (iteratee(array[mid]) < value) low = mid + 1; else high = mid;
    }
    return low;
  };

  // Generator function to create the indexOf and lastIndexOf functions
  function createIndexFinder(dir, predicateFind, sortedIndex) {
    return function(array, item, idx) {
      var i = 0, length = getLength(array);
      if (typeof idx == 'number') {
        if (dir > 0) {
            i = idx >= 0 ? idx : Math.max(idx + length, i);
        } else {
            length = idx >= 0 ? Math.min(idx + 1, length) : idx + length + 1;
        }
      } else if (sortedIndex && idx && length) {
        idx = sortedIndex(array, item);
        return array[idx] === item ? idx : -1;
      }
      if (item !== item) {
        idx = predicateFind(slice.call(array, i, length), _.isNaN);
        return idx >= 0 ? idx + i : -1;
      }
      for (idx = dir > 0 ? i : length - 1; idx >= 0 && idx < length; idx += dir) {
        if (array[idx] === item) return idx;
      }
      return -1;
    };
  }

  // Return the position of the first occurrence of an item in an array,
  // or -1 if the item is not included in the array.
  // If the array is large and already in sort order, pass `true`
  // for **isSorted** to use binary search.
  _.indexOf = createIndexFinder(1, _.findIndex, _.sortedIndex);
  _.lastIndexOf = createIndexFinder(-1, _.findLastIndex);

  // Generate an integer Array containing an arithmetic progression. A port of
  // the native Python `range()` function. See
  // [the Python documentation](http://docs.python.org/library/functions.html#range).
  _.range = function(start, stop, step) {
    if (stop == null) {
      stop = start || 0;
      start = 0;
    }
    step = step || 1;

    var length = Math.max(Math.ceil((stop - start) / step), 0);
    var range = Array(length);

    for (var idx = 0; idx < length; idx++, start += step) {
      range[idx] = start;
    }

    return range;
  };

  // Function (ahem) Functions
  // ------------------

  // Determines whether to execute a function as a constructor
  // or a normal function with the provided arguments
  var executeBound = function(sourceFunc, boundFunc, context, callingContext, args) {
    if (!(callingContext instanceof boundFunc)) return sourceFunc.apply(context, args);
    var self = baseCreate(sourceFunc.prototype);
    var result = sourceFunc.apply(self, args);
    if (_.isObject(result)) return result;
    return self;
  };

  // Create a function bound to a given object (assigning `this`, and arguments,
  // optionally). Delegates to **ECMAScript 5**'s native `Function.bind` if
  // available.
  _.bind = function(func, context) {
    if (nativeBind && func.bind === nativeBind) return nativeBind.apply(func, slice.call(arguments, 1));
    if (!_.isFunction(func)) throw new TypeError('Bind must be called on a function');
    var args = slice.call(arguments, 2);
    var bound = function() {
      return executeBound(func, bound, context, this, args.concat(slice.call(arguments)));
    };
    return bound;
  };

  // Partially apply a function by creating a version that has had some of its
  // arguments pre-filled, without changing its dynamic `this` context. _ acts
  // as a placeholder, allowing any combination of arguments to be pre-filled.
  _.partial = function(func) {
    var boundArgs = slice.call(arguments, 1);
    var bound = function() {
      var position = 0, length = boundArgs.length;
      var args = Array(length);
      for (var i = 0; i < length; i++) {
        args[i] = boundArgs[i] === _ ? arguments[position++] : boundArgs[i];
      }
      while (position < arguments.length) args.push(arguments[position++]);
      return executeBound(func, bound, this, this, args);
    };
    return bound;
  };

  // Bind a number of an object's methods to that object. Remaining arguments
  // are the method names to be bound. Useful for ensuring that all callbacks
  // defined on an object belong to it.
  _.bindAll = function(obj) {
    var i, length = arguments.length, key;
    if (length <= 1) throw new Error('bindAll must be passed function names');
    for (i = 1; i < length; i++) {
      key = arguments[i];
      obj[key] = _.bind(obj[key], obj);
    }
    return obj;
  };

  // Memoize an expensive function by storing its results.
  _.memoize = function(func, hasher) {
    var memoize = function(key) {
      var cache = memoize.cache;
      var address = '' + (hasher ? hasher.apply(this, arguments) : key);
      if (!_.has(cache, address)) cache[address] = func.apply(this, arguments);
      return cache[address];
    };
    memoize.cache = {};
    return memoize;
  };

  // Delays a function for the given number of milliseconds, and then calls
  // it with the arguments supplied.
  _.delay = function(func, wait) {
    var args = slice.call(arguments, 2);
    return setTimeout(function(){
      return func.apply(null, args);
    }, wait);
  };

  // Defers a function, scheduling it to run after the current call stack has
  // cleared.
  _.defer = _.partial(_.delay, _, 1);

  // Returns a function, that, when invoked, will only be triggered at most once
  // during a given window of time. Normally, the throttled function will run
  // as much as it can, without ever going more than once per `wait` duration;
  // but if you'd like to disable the execution on the leading edge, pass
  // `{leading: false}`. To disable execution on the trailing edge, ditto.
  _.throttle = function(func, wait, options) {
    var context, args, result;
    var timeout = null;
    var previous = 0;
    if (!options) options = {};
    var later = function() {
      previous = options.leading === false ? 0 : _.now();
      timeout = null;
      result = func.apply(context, args);
      if (!timeout) context = args = null;
    };
    return function() {
      var now = _.now();
      if (!previous && options.leading === false) previous = now;
      var remaining = wait - (now - previous);
      context = this;
      args = arguments;
      if (remaining <= 0 || remaining > wait) {
        if (timeout) {
          clearTimeout(timeout);
          timeout = null;
        }
        previous = now;
        result = func.apply(context, args);
        if (!timeout) context = args = null;
      } else if (!timeout && options.trailing !== false) {
        timeout = setTimeout(later, remaining);
      }
      return result;
    };
  };

  // Returns a function, that, as long as it continues to be invoked, will not
  // be triggered. The function will be called after it stops being called for
  // N milliseconds. If `immediate` is passed, trigger the function on the
  // leading edge, instead of the trailing.
  _.debounce = function(func, wait, immediate) {
    var timeout, args, context, timestamp, result;

    var later = function() {
      var last = _.now() - timestamp;

      if (last < wait && last >= 0) {
        timeout = setTimeout(later, wait - last);
      } else {
        timeout = null;
        if (!immediate) {
          result = func.apply(context, args);
          if (!timeout) context = args = null;
        }
      }
    };

    return function() {
      context = this;
      args = arguments;
      timestamp = _.now();
      var callNow = immediate && !timeout;
      if (!timeout) timeout = setTimeout(later, wait);
      if (callNow) {
        result = func.apply(context, args);
        context = args = null;
      }

      return result;
    };
  };

  // Returns the first function passed as an argument to the second,
  // allowing you to adjust arguments, run code before and after, and
  // conditionally execute the original function.
  _.wrap = function(func, wrapper) {
    return _.partial(wrapper, func);
  };

  // Returns a negated version of the passed-in predicate.
  _.negate = function(predicate) {
    return function() {
      return !predicate.apply(this, arguments);
    };
  };

  // Returns a function that is the composition of a list of functions, each
  // consuming the return value of the function that follows.
  _.compose = function() {
    var args = arguments;
    var start = args.length - 1;
    return function() {
      var i = start;
      var result = args[start].apply(this, arguments);
      while (i--) result = args[i].call(this, result);
      return result;
    };
  };

  // Returns a function that will only be executed on and after the Nth call.
  _.after = function(times, func) {
    return function() {
      if (--times < 1) {
        return func.apply(this, arguments);
      }
    };
  };

  // Returns a function that will only be executed up to (but not including) the Nth call.
  _.before = function(times, func) {
    var memo;
    return function() {
      if (--times > 0) {
        memo = func.apply(this, arguments);
      }
      if (times <= 1) func = null;
      return memo;
    };
  };

  // Returns a function that will be executed at most one time, no matter how
  // often you call it. Useful for lazy initialization.
  _.once = _.partial(_.before, 2);

  // Object Functions
  // ----------------

  // Keys in IE < 9 that won't be iterated by `for key in ...` and thus missed.
  var hasEnumBug = !{toString: null}.propertyIsEnumerable('toString');
  var nonEnumerableProps = ['valueOf', 'isPrototypeOf', 'toString',
                      'propertyIsEnumerable', 'hasOwnProperty', 'toLocaleString'];

  function collectNonEnumProps(obj, keys) {
    var nonEnumIdx = nonEnumerableProps.length;
    var constructor = obj.constructor;
    var proto = (_.isFunction(constructor) && constructor.prototype) || ObjProto;

    // Constructor is a special case.
    var prop = 'constructor';
    if (_.has(obj, prop) && !_.contains(keys, prop)) keys.push(prop);

    while (nonEnumIdx--) {
      prop = nonEnumerableProps[nonEnumIdx];
      if (prop in obj && obj[prop] !== proto[prop] && !_.contains(keys, prop)) {
        keys.push(prop);
      }
    }
  }

  // Retrieve the names of an object's own properties.
  // Delegates to **ECMAScript 5**'s native `Object.keys`
  _.keys = function(obj) {
    if (!_.isObject(obj)) return [];
    if (nativeKeys) return nativeKeys(obj);
    var keys = [];
    for (var key in obj) if (_.has(obj, key)) keys.push(key);
    // Ahem, IE < 9.
    if (hasEnumBug) collectNonEnumProps(obj, keys);
    return keys;
  };

  // Retrieve all the property names of an object.
  _.allKeys = function(obj) {
    if (!_.isObject(obj)) return [];
    var keys = [];
    for (var key in obj) keys.push(key);
    // Ahem, IE < 9.
    if (hasEnumBug) collectNonEnumProps(obj, keys);
    return keys;
  };

  // Retrieve the values of an object's properties.
  _.values = function(obj) {
    var keys = _.keys(obj);
    var length = keys.length;
    var values = Array(length);
    for (var i = 0; i < length; i++) {
      values[i] = obj[keys[i]];
    }
    return values;
  };

  // Returns the results of applying the iteratee to each element of the object
  // In contrast to _.map it returns an object
  _.mapObject = function(obj, iteratee, context) {
    iteratee = cb(iteratee, context);
    var keys =  _.keys(obj),
          length = keys.length,
          results = {},
          currentKey;
      for (var index = 0; index < length; index++) {
        currentKey = keys[index];
        results[currentKey] = iteratee(obj[currentKey], currentKey, obj);
      }
      return results;
  };

  // Convert an object into a list of `[key, value]` pairs.
  _.pairs = function(obj) {
    var keys = _.keys(obj);
    var length = keys.length;
    var pairs = Array(length);
    for (var i = 0; i < length; i++) {
      pairs[i] = [keys[i], obj[keys[i]]];
    }
    return pairs;
  };

  // Invert the keys and values of an object. The values must be serializable.
  _.invert = function(obj) {
    var result = {};
    var keys = _.keys(obj);
    for (var i = 0, length = keys.length; i < length; i++) {
      result[obj[keys[i]]] = keys[i];
    }
    return result;
  };

  // Return a sorted list of the function names available on the object.
  // Aliased as `methods`
  _.functions = _.methods = function(obj) {
    var names = [];
    for (var key in obj) {
      if (_.isFunction(obj[key])) names.push(key);
    }
    return names.sort();
  };

  // Extend a given object with all the properties in passed-in object(s).
  _.extend = createAssigner(_.allKeys);

  // Assigns a given object with all the own properties in the passed-in object(s)
  // (https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/assign)
  _.extendOwn = _.assign = createAssigner(_.keys);

  // Returns the first key on an object that passes a predicate test
  _.findKey = function(obj, predicate, context) {
    predicate = cb(predicate, context);
    var keys = _.keys(obj), key;
    for (var i = 0, length = keys.length; i < length; i++) {
      key = keys[i];
      if (predicate(obj[key], key, obj)) return key;
    }
  };

  // Return a copy of the object only containing the whitelisted properties.
  _.pick = function(object, oiteratee, context) {
    var result = {}, obj = object, iteratee, keys;
    if (obj == null) return result;
    if (_.isFunction(oiteratee)) {
      keys = _.allKeys(obj);
      iteratee = optimizeCb(oiteratee, context);
    } else {
      keys = flatten(arguments, false, false, 1);
      iteratee = function(value, key, obj) { return key in obj; };
      obj = Object(obj);
    }
    for (var i = 0, length = keys.length; i < length; i++) {
      var key = keys[i];
      var value = obj[key];
      if (iteratee(value, key, obj)) result[key] = value;
    }
    return result;
  };

   // Return a copy of the object without the blacklisted properties.
  _.omit = function(obj, iteratee, context) {
    if (_.isFunction(iteratee)) {
      iteratee = _.negate(iteratee);
    } else {
      var keys = _.map(flatten(arguments, false, false, 1), String);
      iteratee = function(value, key) {
        return !_.contains(keys, key);
      };
    }
    return _.pick(obj, iteratee, context);
  };

  // Fill in a given object with default properties.
  _.defaults = createAssigner(_.allKeys, true);

  // Creates an object that inherits from the given prototype object.
  // If additional properties are provided then they will be added to the
  // created object.
  _.create = function(prototype, props) {
    var result = baseCreate(prototype);
    if (props) _.extendOwn(result, props);
    return result;
  };

  // Create a (shallow-cloned) duplicate of an object.
  _.clone = function(obj) {
    if (!_.isObject(obj)) return obj;
    return _.isArray(obj) ? obj.slice() : _.extend({}, obj);
  };

  // Invokes interceptor with the obj, and then returns obj.
  // The primary purpose of this method is to "tap into" a method chain, in
  // order to perform operations on intermediate results within the chain.
  _.tap = function(obj, interceptor) {
    interceptor(obj);
    return obj;
  };

  // Returns whether an object has a given set of `key:value` pairs.
  _.isMatch = function(object, attrs) {
    var keys = _.keys(attrs), length = keys.length;
    if (object == null) return !length;
    var obj = Object(object);
    for (var i = 0; i < length; i++) {
      var key = keys[i];
      if (attrs[key] !== obj[key] || !(key in obj)) return false;
    }
    return true;
  };


  // Internal recursive comparison function for `isEqual`.
  var eq = function(a, b, aStack, bStack) {
    // Identical objects are equal. `0 === -0`, but they aren't identical.
    // See the [Harmony `egal` proposal](http://wiki.ecmascript.org/doku.php?id=harmony:egal).
    if (a === b) return a !== 0 || 1 / a === 1 / b;
    // A strict comparison is necessary because `null == undefined`.
    if (a == null || b == null) return a === b;
    // Unwrap any wrapped objects.
    if (a instanceof _) a = a._wrapped;
    if (b instanceof _) b = b._wrapped;
    // Compare `[[Class]]` names.
    var className = toString.call(a);
    if (className !== toString.call(b)) return false;
    switch (className) {
      // Strings, numbers, regular expressions, dates, and booleans are compared by value.
      case '[object RegExp]':
      // RegExps are coerced to strings for comparison (Note: '' + /a/i === '/a/i')
      case '[object String]':
        // Primitives and their corresponding object wrappers are equivalent; thus, `"5"` is
        // equivalent to `new String("5")`.
        return '' + a === '' + b;
      case '[object Number]':
        // `NaN`s are equivalent, but non-reflexive.
        // Object(NaN) is equivalent to NaN
        if (+a !== +a) return +b !== +b;
        // An `egal` comparison is performed for other numeric values.
        return +a === 0 ? 1 / +a === 1 / b : +a === +b;
      case '[object Date]':
      case '[object Boolean]':
        // Coerce dates and booleans to numeric primitive values. Dates are compared by their
        // millisecond representations. Note that invalid dates with millisecond representations
        // of `NaN` are not equivalent.
        return +a === +b;
    }

    var areArrays = className === '[object Array]';
    if (!areArrays) {
      if (typeof a != 'object' || typeof b != 'object') return false;

      // Objects with different constructors are not equivalent, but `Object`s or `Array`s
      // from different frames are.
      var aCtor = a.constructor, bCtor = b.constructor;
      if (aCtor !== bCtor && !(_.isFunction(aCtor) && aCtor instanceof aCtor &&
                               _.isFunction(bCtor) && bCtor instanceof bCtor)
                          && ('constructor' in a && 'constructor' in b)) {
        return false;
      }
    }
    // Assume equality for cyclic structures. The algorithm for detecting cyclic
    // structures is adapted from ES 5.1 section 15.12.3, abstract operation `JO`.

    // Initializing stack of traversed objects.
    // It's done here since we only need them for objects and arrays comparison.
    aStack = aStack || [];
    bStack = bStack || [];
    var length = aStack.length;
    while (length--) {
      // Linear search. Performance is inversely proportional to the number of
      // unique nested structures.
      if (aStack[length] === a) return bStack[length] === b;
    }

    // Add the first object to the stack of traversed objects.
    aStack.push(a);
    bStack.push(b);

    // Recursively compare objects and arrays.
    if (areArrays) {
      // Compare array lengths to determine if a deep comparison is necessary.
      length = a.length;
      if (length !== b.length) return false;
      // Deep compare the contents, ignoring non-numeric properties.
      while (length--) {
        if (!eq(a[length], b[length], aStack, bStack)) return false;
      }
    } else {
      // Deep compare objects.
      var keys = _.keys(a), key;
      length = keys.length;
      // Ensure that both objects contain the same number of properties before comparing deep equality.
      if (_.keys(b).length !== length) return false;
      while (length--) {
        // Deep compare each member
        key = keys[length];
        if (!(_.has(b, key) && eq(a[key], b[key], aStack, bStack))) return false;
      }
    }
    // Remove the first object from the stack of traversed objects.
    aStack.pop();
    bStack.pop();
    return true;
  };

  // Perform a deep comparison to check if two objects are equal.
  _.isEqual = function(a, b) {
    return eq(a, b);
  };

  // Is a given array, string, or object empty?
  // An "empty" object has no enumerable own-properties.
  _.isEmpty = function(obj) {
    if (obj == null) return true;
    if (isArrayLike(obj) && (_.isArray(obj) || _.isString(obj) || _.isArguments(obj))) return obj.length === 0;
    return _.keys(obj).length === 0;
  };

  // Is a given value a DOM element?
  _.isElement = function(obj) {
    return !!(obj && obj.nodeType === 1);
  };

  // Is a given value an array?
  // Delegates to ECMA5's native Array.isArray
  _.isArray = nativeIsArray || function(obj) {
    return toString.call(obj) === '[object Array]';
  };

  // Is a given variable an object?
  _.isObject = function(obj) {
    var type = typeof obj;
    return type === 'function' || type === 'object' && !!obj;
  };

  // Add some isType methods: isArguments, isFunction, isString, isNumber, isDate, isRegExp, isError.
  _.each(['Arguments', 'Function', 'String', 'Number', 'Date', 'RegExp', 'Error'], function(name) {
    _['is' + name] = function(obj) {
      return toString.call(obj) === '[object ' + name + ']';
    };
  });

  // Define a fallback version of the method in browsers (ahem, IE < 9), where
  // there isn't any inspectable "Arguments" type.
  if (!_.isArguments(arguments)) {
    _.isArguments = function(obj) {
      return _.has(obj, 'callee');
    };
  }

  // Optimize `isFunction` if appropriate. Work around some typeof bugs in old v8,
  // IE 11 (#1621), and in Safari 8 (#1929).
  if (typeof /./ != 'function' && typeof Int8Array != 'object') {
    _.isFunction = function(obj) {
      return typeof obj == 'function' || false;
    };
  }

  // Is a given object a finite number?
  _.isFinite = function(obj) {
    return isFinite(obj) && !isNaN(parseFloat(obj));
  };

  // Is the given value `NaN`? (NaN is the only number which does not equal itself).
  _.isNaN = function(obj) {
    return _.isNumber(obj) && obj !== +obj;
  };

  // Is a given value a boolean?
  _.isBoolean = function(obj) {
    return obj === true || obj === false || toString.call(obj) === '[object Boolean]';
  };

  // Is a given value equal to null?
  _.isNull = function(obj) {
    return obj === null;
  };

  // Is a given variable undefined?
  _.isUndefined = function(obj) {
    return obj === void 0;
  };

  // Shortcut function for checking if an object has a given property directly
  // on itself (in other words, not on a prototype).
  _.has = function(obj, key) {
    return obj != null && hasOwnProperty.call(obj, key);
  };

  // Utility Functions
  // -----------------

  // Run Underscore.js in *noConflict* mode, returning the `_` variable to its
  // previous owner. Returns a reference to the Underscore object.
  _.noConflict = function() {
    root._ = previousUnderscore;
    return this;
  };

  // Keep the identity function around for default iteratees.
  _.identity = function(value) {
    return value;
  };

  // Predicate-generating functions. Often useful outside of Underscore.
  _.constant = function(value) {
    return function() {
      return value;
    };
  };

  _.noop = function(){};

  _.property = property;

  // Generates a function for a given object that returns a given property.
  _.propertyOf = function(obj) {
    return obj == null ? function(){} : function(key) {
      return obj[key];
    };
  };

  // Returns a predicate for checking whether an object has a given set of
  // `key:value` pairs.
  _.matcher = _.matches = function(attrs) {
    attrs = _.extendOwn({}, attrs);
    return function(obj) {
      return _.isMatch(obj, attrs);
    };
  };

  // Run a function **n** times.
  _.times = function(n, iteratee, context) {
    var accum = Array(Math.max(0, n));
    iteratee = optimizeCb(iteratee, context, 1);
    for (var i = 0; i < n; i++) accum[i] = iteratee(i);
    return accum;
  };

  // Return a random integer between min and max (inclusive).
  _.random = function(min, max) {
    if (max == null) {
      max = min;
      min = 0;
    }
    return min + Math.floor(Math.random() * (max - min + 1));
  };

  // A (possibly faster) way to get the current timestamp as an integer.
  _.now = Date.now || function() {
    return new Date().getTime();
  };

   // List of HTML entities for escaping.
  var escapeMap = {
    '&': '&amp;',
    '<': '&lt;',
    '>': '&gt;',
    '"': '&quot;',
    "'": '&#x27;',
    '`': '&#x60;'
  };
  var unescapeMap = _.invert(escapeMap);

  // Functions for escaping and unescaping strings to/from HTML interpolation.
  var createEscaper = function(map) {
    var escaper = function(match) {
      return map[match];
    };
    // Regexes for identifying a key that needs to be escaped
    var source = '(?:' + _.keys(map).join('|') + ')';
    var testRegexp = RegExp(source);
    var replaceRegexp = RegExp(source, 'g');
    return function(string) {
      string = string == null ? '' : '' + string;
      return testRegexp.test(string) ? string.replace(replaceRegexp, escaper) : string;
    };
  };
  _.escape = createEscaper(escapeMap);
  _.unescape = createEscaper(unescapeMap);

  // If the value of the named `property` is a function then invoke it with the
  // `object` as context; otherwise, return it.
  _.result = function(object, property, fallback) {
    var value = object == null ? void 0 : object[property];
    if (value === void 0) {
      value = fallback;
    }
    return _.isFunction(value) ? value.call(object) : value;
  };

  // Generate a unique integer id (unique within the entire client session).
  // Useful for temporary DOM ids.
  var idCounter = 0;
  _.uniqueId = function(prefix) {
    var id = ++idCounter + '';
    return prefix ? prefix + id : id;
  };

  // By default, Underscore uses ERB-style template delimiters, change the
  // following template settings to use alternative delimiters.
  _.templateSettings = {
    evaluate    : /<%([\s\S]+?)%>/g,
    interpolate : /<%=([\s\S]+?)%>/g,
    escape      : /<%-([\s\S]+?)%>/g
  };

  // When customizing `templateSettings`, if you don't want to define an
  // interpolation, evaluation or escaping regex, we need one that is
  // guaranteed not to match.
  var noMatch = /(.)^/;

  // Certain characters need to be escaped so that they can be put into a
  // string literal.
  var escapes = {
    "'":      "'",
    '\\':     '\\',
    '\r':     'r',
    '\n':     'n',
    '\u2028': 'u2028',
    '\u2029': 'u2029'
  };

  var escaper = /\\|'|\r|\n|\u2028|\u2029/g;

  var escapeChar = function(match) {
    return '\\' + escapes[match];
  };

  // JavaScript micro-templating, similar to John Resig's implementation.
  // Underscore templating handles arbitrary delimiters, preserves whitespace,
  // and correctly escapes quotes within interpolated code.
  // NB: `oldSettings` only exists for backwards compatibility.
  _.template = function(text, settings, oldSettings) {
    if (!settings && oldSettings) settings = oldSettings;
    settings = _.defaults({}, settings, _.templateSettings);

    // Combine delimiters into one regular expression via alternation.
    var matcher = RegExp([
      (settings.escape || noMatch).source,
      (settings.interpolate || noMatch).source,
      (settings.evaluate || noMatch).source
    ].join('|') + '|$', 'g');

    // Compile the template source, escaping string literals appropriately.
    var index = 0;
    var source = "__p+='";
    text.replace(matcher, function(match, escape, interpolate, evaluate, offset) {
      source += text.slice(index, offset).replace(escaper, escapeChar);
      index = offset + match.length;

      if (escape) {
        source += "'+\n((__t=(" + escape + "))==null?'':_.escape(__t))+\n'";
      } else if (interpolate) {
        source += "'+\n((__t=(" + interpolate + "))==null?'':__t)+\n'";
      } else if (evaluate) {
        source += "';\n" + evaluate + "\n__p+='";
      }

      // Adobe VMs need the match returned to produce the correct offest.
      return match;
    });
    source += "';\n";

    // If a variable is not specified, place data values in local scope.
    if (!settings.variable) source = 'with(obj||{}){\n' + source + '}\n';

    source = "var __t,__p='',__j=Array.prototype.join," +
      "print=function(){__p+=__j.call(arguments,'');};\n" +
      source + 'return __p;\n';

    try {
      var render = new Function(settings.variable || 'obj', '_', source);
    } catch (e) {
      e.source = source;
      throw e;
    }

    var template = function(data) {
      return render.call(this, data, _);
    };

    // Provide the compiled source as a convenience for precompilation.
    var argument = settings.variable || 'obj';
    template.source = 'function(' + argument + '){\n' + source + '}';

    return template;
  };

  // Add a "chain" function. Start chaining a wrapped Underscore object.
  _.chain = function(obj) {
    var instance = _(obj);
    instance._chain = true;
    return instance;
  };

  // OOP
  // ---------------
  // If Underscore is called as a function, it returns a wrapped object that
  // can be used OO-style. This wrapper holds altered versions of all the
  // underscore functions. Wrapped objects may be chained.

  // Helper function to continue chaining intermediate results.
  var result = function(instance, obj) {
    return instance._chain ? _(obj).chain() : obj;
  };

  // Add your own custom functions to the Underscore object.
  _.mixin = function(obj) {
    _.each(_.functions(obj), function(name) {
      var func = _[name] = obj[name];
      _.prototype[name] = function() {
        var args = [this._wrapped];
        push.apply(args, arguments);
        return result(this, func.apply(_, args));
      };
    });
  };

  // Add all of the Underscore functions to the wrapper object.
  _.mixin(_);

  // Add all mutator Array functions to the wrapper.
  _.each(['pop', 'push', 'reverse', 'shift', 'sort', 'splice', 'unshift'], function(name) {
    var method = ArrayProto[name];
    _.prototype[name] = function() {
      var obj = this._wrapped;
      method.apply(obj, arguments);
      if ((name === 'shift' || name === 'splice') && obj.length === 0) delete obj[0];
      return result(this, obj);
    };
  });

  // Add all accessor Array functions to the wrapper.
  _.each(['concat', 'join', 'slice'], function(name) {
    var method = ArrayProto[name];
    _.prototype[name] = function() {
      return result(this, method.apply(this._wrapped, arguments));
    };
  });

  // Extracts the result from a wrapped and chained object.
  _.prototype.value = function() {
    return this._wrapped;
  };

  // Provide unwrapping proxy for some methods used in engine operations
  // such as arithmetic and JSON stringification.
  _.prototype.valueOf = _.prototype.toJSON = _.prototype.value;

  _.prototype.toString = function() {
    return '' + this._wrapped;
  };

  // AMD registration happens at the end for compatibility with AMD loaders
  // that may not enforce next-turn semantics on modules. Even though general
  // practice for AMD registration is to be anonymous, underscore registers
  // as a named module because, like jQuery, it is a base library that is
  // popular enough to be bundled in a third party lib, but not be part of
  // an AMD load request. Those cases could generate an error when an
  // anonymous define() is called outside of a loader request.
  if (typeof define === 'function' && define.amd) {
    define('underscore', [], function() {
      return _;
    });
  }
}.call(this));

//! moment.js
//! version : 2.12.0
//! 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',factory) :
    global.moment = factory()
}(this, function () { 'use strict';

    var hookCallback;

    function utils_hooks__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 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 create_utc__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
        };
    }

    function getParsingFlags(m) {
        if (m._pf == null) {
            m._pf = defaultParsingFlags();
        }
        return m._pf;
    }

    function valid__isValid(m) {
        if (m._isValid == null) {
            var flags = getParsingFlags(m);
            m._isValid = !isNaN(m._d.getTime()) &&
                flags.overflow < 0 &&
                !flags.empty &&
                !flags.invalidMonth &&
                !flags.invalidWeekday &&
                !flags.nullInput &&
                !flags.invalidFormat &&
                !flags.userInvalidated;

            if (m._strict) {
                m._isValid = m._isValid &&
                    flags.charsLeftOver === 0 &&
                    flags.unusedTokens.length === 0 &&
                    flags.bigHour === undefined;
            }
        }
        return m._isValid;
    }

    function valid__createInvalid (flags) {
        var m = create_utc__createUTC(NaN);
        if (flags != null) {
            extend(getParsingFlags(m), flags);
        }
        else {
            getParsingFlags(m).userInvalidated = true;
        }

        return m;
    }

    function isUndefined(input) {
        return input === void 0;
    }

    // Plugins that add properties should also add the key here (null value),
    // so we can properly clone ourselves.
    var momentProperties = utils_hooks__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 in momentProperties) {
                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);
        // Prevent infinite loop in case updateOffset creates new moment
        // objects.
        if (updateInProgress === false) {
            updateInProgress = true;
            utils_hooks__hooks.updateOffset(this);
            updateInProgress = false;
        }
    }

    function isMoment (obj) {
        return obj instanceof Moment || (obj != null && obj._isAMomentObject != null);
    }

    function absFloor (number) {
        if (number < 0) {
            return Math.ceil(number);
        } 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 (utils_hooks__hooks.suppressDeprecationWarnings === false &&
                (typeof console !==  'undefined') && console.warn) {
            console.warn('Deprecation warning: ' + msg);
        }
    }

    function deprecate(msg, fn) {
        var firstTime = true;

        return extend(function () {
            if (firstTime) {
                warn(msg + '\nArguments: ' + Array.prototype.slice.call(arguments).join(', ') + '\n' + (new Error()).stack);
                firstTime = false;
            }
            return fn.apply(this, arguments);
        }, fn);
    }

    var deprecations = {};

    function deprecateSimple(name, msg) {
        if (!deprecations[name]) {
            warn(msg);
            deprecations[name] = true;
        }
    }

    utils_hooks__hooks.suppressDeprecationWarnings = false;

    function isFunction(input) {
        return input instanceof Function || Object.prototype.toString.call(input) === '[object Function]';
    }

    function isObject(input) {
        return Object.prototype.toString.call(input) === '[object Object]';
    }

    function locale_set__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 _ordinalParseLenient.
        this._ordinalParseLenient = new RegExp(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];
                }
            }
        }
        return res;
    }

    function Locale(config) {
        if (config != null) {
            this.set(config);
        }
    }

    // internal storage for locale config files
    var locales = {};
    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
                locale_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 locale_locales__getSetGlobalLocale (key, values) {
        var data;
        if (key) {
            if (isUndefined(values)) {
                data = locale_locales__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) {
            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');
                config = mergeConfigs(locales[name]._config, config);
            } else if (config.parentLocale != null) {
                if (locales[config.parentLocale] != null) {
                    config = mergeConfigs(locales[config.parentLocale]._config, config);
                } else {
                    // treat as if there is no base config
                    deprecateSimple('parentLocaleUndefined',
                            'specified parentLocale is not defined yet');
                }
            }
            locales[name] = new Locale(config);

            // backwards compat for now: also set the locale
            locale_locales__getSetGlobalLocale(name);

            return locales[name];
        } else {
            // useful for testing
            delete locales[name];
            return null;
        }
    }

    function updateLocale(name, config) {
        if (config != null) {
            var locale;
            if (locales[name] != null) {
                config = mergeConfigs(locales[name]._config, config);
            }
            locale = new Locale(config);
            locale.parentLocale = locales[name];
            locales[name] = locale;

            // backwards compat for now: also set the locale
            locale_locales__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 locale_locales__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 locale_locales__listLocales() {
        return Object.keys(locales);
    }

    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;
    }

    function makeGetSet (unit, keepTime) {
        return function (value) {
            if (value != null) {
                get_set__set(this, unit, value);
                utils_hooks__hooks.updateOffset(this, keepTime);
                return this;
            } else {
                return get_set__get(this, unit);
            }
        };
    }

    function get_set__get (mom, unit) {
        return mom.isValid() ?
            mom._d['get' + (mom._isUTC ? 'UTC' : '') + unit]() : NaN;
    }

    function get_set__set (mom, unit, value) {
        if (mom.isValid()) {
            mom._d['set' + (mom._isUTC ? 'UTC' : '') + unit](value);
        }
    }

    // MOMENTS

    function getSet (units, value) {
        var unit;
        if (typeof units === 'object') {
            for (unit in units) {
                this.set(unit, units[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?|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 = '';
            for (i = 0; i < length; i++) {
                output += array[i] instanceof Function ? 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 (typeof callback === 'number') {
            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;

    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');

    // 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) {
        return isArray(this._months) ? this._months[m.month()] :
            this._months[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) {
        return isArray(this._monthsShort) ? this._monthsShort[m.month()] :
            this._monthsShort[MONTHS_IN_FORMAT.test(format) ? 'format' : 'standalone'][m.month()];
    }

    function localeMonthsParse (monthName, format, strict) {
        var i, mom, regex;

        if (!this._monthsParse) {
            this._monthsParse = [];
            this._longMonthsParse = [];
            this._shortMonthsParse = [];
        }

        for (i = 0; i < 12; i++) {
            // make the regex if we don't have it already
            mom = create_utc__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 (typeof value !== 'number') {
                    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);
            utils_hooks__hooks.updateOffset(this, true);
            return this;
        } else {
            return get_set__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 {
            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 {
            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 = create_utc__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]);
            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');
    }

    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;
        }
    }

    // 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;
            utils_hooks__hooks.createFromInputFallback(config);
        }
    }

    utils_hooks__hooks.createFromInputFallback = deprecate(
        'moment construction falls back to js Date. This is ' +
        'discouraged and will be removed in upcoming major ' +
        'release. Please refer to ' +
        'https://github.com/moment/moment/issues/1407 for more info.',
        function (config) {
            config._d = new Date(config._i + (config._useUTC ? ' UTC' : ''));
        }
    );

    function createDate (y, m, d, h, M, s, ms) {
        //can't just apply() to create a date:
        //http://stackoverflow.com/questions/181348/instantiating-a-javascript-object-by-calling-prototype-constructor-apply
        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;
    }

    // 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');

    // 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 ? utils_hooks__hooks.parseTwoDigitYear(input) : toInt(input);
    });
    addParseToken('YY', function (input, array) {
        array[YEAR] = utils_hooks__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

    utils_hooks__hooks.parseTwoDigitYear = function (input) {
        return toInt(input) + (toInt(input) > 68 ? 1900 : 2000);
    };

    // MOMENTS

    var getSetYear = makeGetSet('FullYear', false);

    function getIsLeapYear () {
        return isLeapYear(this.year());
    }

    // 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;
    }

    //http://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;
    }

    // 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(utils_hooks__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) {
            yearToUse = defaults(config._a[YEAR], currentDate[YEAR]);

            if (config._dayOfYear > daysInYear(yearToUse)) {
                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(local__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;

            weekYear = defaults(w.gg, config._a[YEAR], weekOfYear(local__createLocal(), dow, doy).year);
            week = defaults(w.w, 1);

            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
    utils_hooks__hooks.ISO_8601 = 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 === utils_hooks__hooks.ISO_8601) {
            configFromISO(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 (getParsingFlags(config).bigHour === true &&
                config._a[HOUR] <= 12 &&
                config._a[HOUR] > 0) {
            getParsingFlags(config).bigHour = undefined;
        }
        // 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 (!valid__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 || locale_locales__getLocale(config._l);

        if (input === null || (format === undefined && input === '')) {
            return valid__createInvalid({nullInput: true});
        }

        if (typeof input === 'string') {
            config._i = input = config._locale.preparse(input);
        }

        if (isMoment(input)) {
            return new Moment(checkOverflow(input));
        } else if (isArray(format)) {
            configFromStringAndArray(config);
        } else if (format) {
            configFromStringAndFormat(config);
        } else if (isDate(input)) {
            config._d = input;
        } else {
            configFromInput(config);
        }

        if (!valid__isValid(config)) {
            config._d = null;
        }

        return config;
    }

    function configFromInput(config) {
        var input = config._i;
        if (input === undefined) {
            config._d = new Date(utils_hooks__hooks.now());
        } else if (isDate(input)) {
            config._d = new Date(+input);
        } 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 (typeof(input) === 'object') {
            configFromObject(config);
        } else if (typeof(input) === 'number') {
            // from milliseconds
            config._d = new Date(input);
        } else {
            utils_hooks__hooks.createFromInputFallback(config);
        }
    }

    function createLocalOrUTC (input, format, locale, strict, isUTC) {
        var c = {};

        if (typeof(locale) === 'boolean') {
            strict = locale;
            locale = 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 local__createLocal (input, format, locale, strict) {
        return createLocalOrUTC(input, format, locale, strict, false);
    }

    var prototypeMin = deprecate(
         'moment().min is deprecated, use moment.max instead. https://github.com/moment/moment/issues/1548',
         function () {
             var other = local__createLocal.apply(null, arguments);
             if (this.isValid() && other.isValid()) {
                 return other < this ? this : other;
             } else {
                 return valid__createInvalid();
             }
         }
     );

    var prototypeMax = deprecate(
        'moment().max is deprecated, use moment.min instead. https://github.com/moment/moment/issues/1548',
        function () {
            var other = local__createLocal.apply(null, arguments);
            if (this.isValid() && other.isValid()) {
                return other > this ? this : other;
            } else {
                return valid__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 local__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());
    };

    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;

        // representation for dateAddRemove
        this._milliseconds = +milliseconds +
            seconds * 1e3 + // 1000
            minutes * 6e4 + // 1000 * 60
            hours * 36e5; // 1000 * 60 * 60
        // 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 = locale_locales__getLocale();

        this._bubble();
    }

    function isDuration (obj) {
        return obj instanceof Duration;
    }

    // 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) || []);
        var chunk   = matches[matches.length - 1] || [];
        var parts   = (chunk + '').match(chunkOffset) || ['-', 0, 0];
        var minutes = +(parts[1] * 60) + toInt(parts[2]);

        return 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 : +local__createLocal(input)) - (+res);
            // Use low-level api, because this fn is low-level api.
            res._d.setTime(+res._d + diff);
            utils_hooks__hooks.updateOffset(res, false);
            return res;
        } else {
            return local__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.
    utils_hooks__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) {
        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);
            } else if (Math.abs(input) < 16) {
                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) {
                    add_subtract__addSubtract(this, create__createDuration(input - offset, 'm'), 1, false);
                } else if (!this._changeInProgress) {
                    this._changeInProgress = true;
                    utils_hooks__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) {
            this.utcOffset(this._tzm);
        } else if (typeof this._i === 'string') {
            this.utcOffset(offsetFromString(matchOffset, this._i));
        }
        return this;
    }

    function hasAlignedHourOffset (input) {
        if (!this.isValid()) {
            return false;
        }
        input = input ? local__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 ? create_utc__createUTC(c._a) : local__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{3})?\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 create__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 (typeof input === 'number') {
            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(match[MILLISECOND]) * sign
            };
        } 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(local__createLocal(duration.from), local__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;
    }

    create__createDuration.fn = Duration.prototype;

    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;
    }

    function absRound (number) {
        if (number < 0) {
            return Math.round(-1 * number) * -1;
        } else {
            return Math.round(number);
        }
    }

    // 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).');
                tmp = val; val = period; period = tmp;
            }

            val = typeof val === 'string' ? +val : val;
            dur = create__createDuration(val, period);
            add_subtract__addSubtract(this, dur, direction);
            return this;
        };
    }

    function add_subtract__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 + milliseconds * isAdding);
        }
        if (days) {
            get_set__set(mom, 'Date', get_set__get(mom, 'Date') + days * isAdding);
        }
        if (months) {
            setMonth(mom, get_set__get(mom, 'Month') + months * isAdding);
        }
        if (updateOffset) {
            utils_hooks__hooks.updateOffset(mom, days || months);
        }
    }

    var add_subtract__add      = createAdder(1, 'add');
    var add_subtract__subtract = createAdder(-1, 'subtract');

    function moment_calendar__calendar (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 || local__createLocal(),
            sod = cloneWithOffset(now, this).startOf('day'),
            diff = this.diff(sod, 'days', true),
            format = diff < -6 ? 'sameElse' :
                diff < -1 ? 'lastWeek' :
                diff < 0 ? 'lastDay' :
                diff < 1 ? 'sameDay' :
                diff < 2 ? 'nextDay' :
                diff < 7 ? 'nextWeek' : 'sameElse';

        var output = formats && (isFunction(formats[format]) ? formats[format]() : formats[format]);

        return this.format(output || this.localeData().calendar(format, this, local__createLocal(now)));
    }

    function clone () {
        return new Moment(this);
    }

    function isAfter (input, units) {
        var localInput = isMoment(input) ? input : local__createLocal(input);
        if (!(this.isValid() && localInput.isValid())) {
            return false;
        }
        units = normalizeUnits(!isUndefined(units) ? units : 'millisecond');
        if (units === 'millisecond') {
            return +this > +localInput;
        } else {
            return +localInput < +this.clone().startOf(units);
        }
    }

    function isBefore (input, units) {
        var localInput = isMoment(input) ? input : local__createLocal(input);
        if (!(this.isValid() && localInput.isValid())) {
            return false;
        }
        units = normalizeUnits(!isUndefined(units) ? units : 'millisecond');
        if (units === 'millisecond') {
            return +this < +localInput;
        } else {
            return +this.clone().endOf(units) < +localInput;
        }
    }

    function isBetween (from, to, units) {
        return this.isAfter(from, units) && this.isBefore(to, units);
    }

    function isSame (input, units) {
        var localInput = isMoment(input) ? input : local__createLocal(input),
            inputMs;
        if (!(this.isValid() && localInput.isValid())) {
            return false;
        }
        units = normalizeUnits(units || 'millisecond');
        if (units === 'millisecond') {
            return +this === +localInput;
        } else {
            inputMs = +localInput;
            return +(this.clone().startOf(units)) <= inputMs && inputMs <= +(this.clone().endOf(units));
        }
    }

    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);
        }

        return -(wholeMonthDiff + adjust);
    }

    utils_hooks__hooks.defaultFormat = 'YYYY-MM-DDTHH:mm:ssZ';

    function toString () {
        return this.clone().locale('en').format('ddd MMM DD YYYY HH:mm:ss [GMT]ZZ');
    }

    function moment_format__toISOString () {
        var m = this.clone().utc();
        if (0 < m.year() && m.year() <= 9999) {
            if (isFunction(Date.prototype.toISOString)) {
                // native implementation is ~50x faster, use it when we can
                return this.toDate().toISOString();
            } else {
                return formatMoment(m, 'YYYY-MM-DD[T]HH:mm:ss.SSS[Z]');
            }
        } else {
            return formatMoment(m, 'YYYYYY-MM-DD[T]HH:mm:ss.SSS[Z]');
        }
    }

    function format (inputString) {
        var output = formatMoment(this, inputString || utils_hooks__hooks.defaultFormat);
        return this.localeData().postformat(output);
    }

    function from (time, withoutSuffix) {
        if (this.isValid() &&
                ((isMoment(time) && time.isValid()) ||
                 local__createLocal(time).isValid())) {
            return create__createDuration({to: this, from: time}).locale(this.locale()).humanize(!withoutSuffix);
        } else {
            return this.localeData().invalidDate();
        }
    }

    function fromNow (withoutSuffix) {
        return this.from(local__createLocal(), withoutSuffix);
    }

    function to (time, withoutSuffix) {
        if (this.isValid() &&
                ((isMoment(time) && time.isValid()) ||
                 local__createLocal(time).isValid())) {
            return create__createDuration({from: this, to: time}).locale(this.locale()).humanize(!withoutSuffix);
        } else {
            return this.localeData().invalidDate();
        }
    }

    function toNow (withoutSuffix) {
        return this.to(local__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 = locale_locales__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':
            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;
        }
        return this.startOf(units).add(1, (units === 'isoWeek' ? 'week' : units)).subtract(1, 'ms');
    }

    function to_type__valueOf () {
        return +this._d - ((this._offset || 0) * 60000);
    }

    function unix () {
        return Math.floor(+this / 1000);
    }

    function toDate () {
        return this._offset ? new Date(+this) : this._d;
    }

    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 moment_valid__isValid () {
        return valid__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');

    // 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] = utils_hooks__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');

    // 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('w', ['ww', 2], 'wo', 'week');
    addFormatToken('W', ['WW', 2], 'Wo', 'isoWeek');

    // ALIASES

    addUnitAlias('week', 'w');
    addUnitAlias('isoWeek', 'W');

    // 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', ['DD', 2], 'Do', 'date');

    // ALIASES

    addUnitAlias('date', 'D');

    // PARSING

    addRegexToken('D',  match1to2);
    addRegexToken('DD', match1to2, match2);
    addRegexToken('Do', function (isStrict, locale) {
        return isStrict ? locale._ordinalParse : locale._ordinalParseLenient;
    });

    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('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');

    // PARSING

    addRegexToken('d',    match1to2);
    addRegexToken('e',    match1to2);
    addRegexToken('E',    match1to2);
    addRegexToken('dd',   matchWord);
    addRegexToken('ddd',  matchWord);
    addRegexToken('dddd', matchWord);

    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;
    }

    // LOCALES

    var defaultLocaleWeekdays = 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split('_');
    function localeWeekdays (m, format) {
        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 this._weekdaysShort[m.day()];
    }

    var defaultLocaleWeekdaysMin = 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_');
    function localeWeekdaysMin (m) {
        return this._weekdaysMin[m.day()];
    }

    function localeWeekdaysParse (weekdayName, format, strict) {
        var i, mom, regex;

        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 = local__createLocal([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.
        return input == null ? this.day() || 7 : this.day(this.day() % 7 ? input : input - 7);
    }

    // FORMATTING

    addFormatToken('DDD', ['DDDD', 3], 'DDDo', 'dayOfYear');

    // ALIASES

    addUnitAlias('dayOfYear', 'DDD');

    // 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

    function hFormat() {
        return this.hours() % 12 || 12;
    }

    addFormatToken('H', ['HH', 2], 0, 'hour');
    addFormatToken('h', ['hh', 2], 0, hFormat);

    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');

    // PARSING

    function matchMeridiem (isStrict, locale) {
        return locale._meridiemParse;
    }

    addRegexToken('a',  matchMeridiem);
    addRegexToken('A',  matchMeridiem);
    addRegexToken('H',  match1to2);
    addRegexToken('h',  match1to2);
    addRegexToken('HH', match1to2, match2);
    addRegexToken('hh', match1to2, match2);

    addRegexToken('hmm', match3to4);
    addRegexToken('hmmss', match5to6);
    addRegexToken('Hmm', match3to4);
    addRegexToken('Hmmss', match5to6);

    addParseToken(['H', 'HH'], HOUR);
    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);

    // FORMATTING

    addFormatToken('m', ['mm', 2], 0, 'minute');

    // ALIASES

    addUnitAlias('minute', 'm');

    // 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');

    // 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');

    // 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 momentPrototype__proto = Moment.prototype;

    momentPrototype__proto.add               = add_subtract__add;
    momentPrototype__proto.calendar          = moment_calendar__calendar;
    momentPrototype__proto.clone             = clone;
    momentPrototype__proto.diff              = diff;
    momentPrototype__proto.endOf             = endOf;
    momentPrototype__proto.format            = format;
    momentPrototype__proto.from              = from;
    momentPrototype__proto.fromNow           = fromNow;
    momentPrototype__proto.to                = to;
    momentPrototype__proto.toNow             = toNow;
    momentPrototype__proto.get               = getSet;
    momentPrototype__proto.invalidAt         = invalidAt;
    momentPrototype__proto.isAfter           = isAfter;
    momentPrototype__proto.isBefore          = isBefore;
    momentPrototype__proto.isBetween         = isBetween;
    momentPrototype__proto.isSame            = isSame;
    momentPrototype__proto.isSameOrAfter     = isSameOrAfter;
    momentPrototype__proto.isSameOrBefore    = isSameOrBefore;
    momentPrototype__proto.isValid           = moment_valid__isValid;
    momentPrototype__proto.lang              = lang;
    momentPrototype__proto.locale            = locale;
    momentPrototype__proto.localeData        = localeData;
    momentPrototype__proto.max               = prototypeMax;
    momentPrototype__proto.min               = prototypeMin;
    momentPrototype__proto.parsingFlags      = parsingFlags;
    momentPrototype__proto.set               = getSet;
    momentPrototype__proto.startOf           = startOf;
    momentPrototype__proto.subtract          = add_subtract__subtract;
    momentPrototype__proto.toArray           = toArray;
    momentPrototype__proto.toObject          = toObject;
    momentPrototype__proto.toDate            = toDate;
    momentPrototype__proto.toISOString       = moment_format__toISOString;
    momentPrototype__proto.toJSON            = toJSON;
    momentPrototype__proto.toString          = toString;
    momentPrototype__proto.unix              = unix;
    momentPrototype__proto.valueOf           = to_type__valueOf;
    momentPrototype__proto.creationData      = creationData;

    // Year
    momentPrototype__proto.year       = getSetYear;
    momentPrototype__proto.isLeapYear = getIsLeapYear;

    // Week Year
    momentPrototype__proto.weekYear    = getSetWeekYear;
    momentPrototype__proto.isoWeekYear = getSetISOWeekYear;

    // Quarter
    momentPrototype__proto.quarter = momentPrototype__proto.quarters = getSetQuarter;

    // Month
    momentPrototype__proto.month       = getSetMonth;
    momentPrototype__proto.daysInMonth = getDaysInMonth;

    // Week
    momentPrototype__proto.week           = momentPrototype__proto.weeks        = getSetWeek;
    momentPrototype__proto.isoWeek        = momentPrototype__proto.isoWeeks     = getSetISOWeek;
    momentPrototype__proto.weeksInYear    = getWeeksInYear;
    momentPrototype__proto.isoWeeksInYear = getISOWeeksInYear;

    // Day
    momentPrototype__proto.date       = getSetDayOfMonth;
    momentPrototype__proto.day        = momentPrototype__proto.days             = getSetDayOfWeek;
    momentPrototype__proto.weekday    = getSetLocaleDayOfWeek;
    momentPrototype__proto.isoWeekday = getSetISODayOfWeek;
    momentPrototype__proto.dayOfYear  = getSetDayOfYear;

    // Hour
    momentPrototype__proto.hour = momentPrototype__proto.hours = getSetHour;

    // Minute
    momentPrototype__proto.minute = momentPrototype__proto.minutes = getSetMinute;

    // Second
    momentPrototype__proto.second = momentPrototype__proto.seconds = getSetSecond;

    // Millisecond
    momentPrototype__proto.millisecond = momentPrototype__proto.milliseconds = getSetMillisecond;

    // Offset
    momentPrototype__proto.utcOffset            = getSetOffset;
    momentPrototype__proto.utc                  = setOffsetToUTC;
    momentPrototype__proto.local                = setOffsetToLocal;
    momentPrototype__proto.parseZone            = setOffsetToParsedOffset;
    momentPrototype__proto.hasAlignedHourOffset = hasAlignedHourOffset;
    momentPrototype__proto.isDST                = isDaylightSavingTime;
    momentPrototype__proto.isDSTShifted         = isDaylightSavingTimeShifted;
    momentPrototype__proto.isLocal              = isLocal;
    momentPrototype__proto.isUtcOffset          = isUtcOffset;
    momentPrototype__proto.isUtc                = isUtc;
    momentPrototype__proto.isUTC                = isUtc;

    // Timezone
    momentPrototype__proto.zoneAbbr = getZoneAbbr;
    momentPrototype__proto.zoneName = getZoneName;

    // Deprecations
    momentPrototype__proto.dates  = deprecate('dates accessor is deprecated. Use date instead.', getSetDayOfMonth);
    momentPrototype__proto.months = deprecate('months accessor is deprecated. Use month instead', getSetMonth);
    momentPrototype__proto.years  = deprecate('years accessor is deprecated. Use year instead', getSetYear);
    momentPrototype__proto.zone   = deprecate('moment().zone is deprecated, use moment().utcOffset instead. https://github.com/moment/moment/issues/1779', getSetZone);

    var momentPrototype = momentPrototype__proto;

    function moment__createUnix (input) {
        return local__createLocal(input * 1000);
    }

    function moment__createInZone () {
        return local__createLocal.apply(null, arguments).parseZone();
    }

    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 locale_calendar__calendar (key, mom, now) {
        var output = this._calendar[key];
        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 defaultOrdinalParse = /\d{1,2}/;

    function ordinal (number) {
        return this._ordinal.replace('%d', number);
    }

    function preParsePostFormat (string) {
        return string;
    }

    var defaultRelativeTime = {
        future : 'in %s',
        past   : '%s ago',
        s  : 'a few 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 relative__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 prototype__proto = Locale.prototype;

    prototype__proto._calendar       = defaultCalendar;
    prototype__proto.calendar        = locale_calendar__calendar;
    prototype__proto._longDateFormat = defaultLongDateFormat;
    prototype__proto.longDateFormat  = longDateFormat;
    prototype__proto._invalidDate    = defaultInvalidDate;
    prototype__proto.invalidDate     = invalidDate;
    prototype__proto._ordinal        = defaultOrdinal;
    prototype__proto.ordinal         = ordinal;
    prototype__proto._ordinalParse   = defaultOrdinalParse;
    prototype__proto.preparse        = preParsePostFormat;
    prototype__proto.postformat      = preParsePostFormat;
    prototype__proto._relativeTime   = defaultRelativeTime;
    prototype__proto.relativeTime    = relative__relativeTime;
    prototype__proto.pastFuture      = pastFuture;
    prototype__proto.set             = locale_set__set;

    // Month
    prototype__proto.months            =        localeMonths;
    prototype__proto._months           = defaultLocaleMonths;
    prototype__proto.monthsShort       =        localeMonthsShort;
    prototype__proto._monthsShort      = defaultLocaleMonthsShort;
    prototype__proto.monthsParse       =        localeMonthsParse;
    prototype__proto._monthsRegex      = defaultMonthsRegex;
    prototype__proto.monthsRegex       = monthsRegex;
    prototype__proto._monthsShortRegex = defaultMonthsShortRegex;
    prototype__proto.monthsShortRegex  = monthsShortRegex;

    // Week
    prototype__proto.week = localeWeek;
    prototype__proto._week = defaultLocaleWeek;
    prototype__proto.firstDayOfYear = localeFirstDayOfYear;
    prototype__proto.firstDayOfWeek = localeFirstDayOfWeek;

    // Day of Week
    prototype__proto.weekdays       =        localeWeekdays;
    prototype__proto._weekdays      = defaultLocaleWeekdays;
    prototype__proto.weekdaysMin    =        localeWeekdaysMin;
    prototype__proto._weekdaysMin   = defaultLocaleWeekdaysMin;
    prototype__proto.weekdaysShort  =        localeWeekdaysShort;
    prototype__proto._weekdaysShort = defaultLocaleWeekdaysShort;
    prototype__proto.weekdaysParse  =        localeWeekdaysParse;

    // Hours
    prototype__proto.isPM = localeIsPM;
    prototype__proto._meridiemParse = defaultLocaleMeridiemParse;
    prototype__proto.meridiem = localeMeridiem;

    function lists__get (format, index, field, setter) {
        var locale = locale_locales__getLocale();
        var utc = create_utc__createUTC().set(setter, index);
        return locale[field](utc, format);
    }

    function list (format, index, field, count, setter) {
        if (typeof format === 'number') {
            index = format;
            format = undefined;
        }

        format = format || '';

        if (index != null) {
            return lists__get(format, index, field, setter);
        }

        var i;
        var out = [];
        for (i = 0; i < count; i++) {
            out[i] = lists__get(format, i, field, setter);
        }
        return out;
    }

    function lists__listMonths (format, index) {
        return list(format, index, 'months', 12, 'month');
    }

    function lists__listMonthsShort (format, index) {
        return list(format, index, 'monthsShort', 12, 'month');
    }

    function lists__listWeekdays (format, index) {
        return list(format, index, 'weekdays', 7, 'day');
    }

    function lists__listWeekdaysShort (format, index) {
        return list(format, index, 'weekdaysShort', 7, 'day');
    }

    function lists__listWeekdaysMin (format, index) {
        return list(format, index, 'weekdaysMin', 7, 'day');
    }

    locale_locales__getSetGlobalLocale('en', {
        ordinalParse: /\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
    utils_hooks__hooks.lang = deprecate('moment.lang is deprecated. Use moment.locale instead.', locale_locales__getSetGlobalLocale);
    utils_hooks__hooks.langData = deprecate('moment.langData is deprecated. Use moment.localeData instead.', locale_locales__getLocale);

    var mathAbs = Math.abs;

    function duration_abs__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 duration_add_subtract__addSubtract (duration, input, value, direction) {
        var other = create__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 duration_add_subtract__add (input, value) {
        return duration_add_subtract__addSubtract(this, input, value, 1);
    }

    // supports only 2.0-style subtract(1, 's') or subtract(duration)
    function duration_add_subtract__subtract (input, value) {
        return duration_add_subtract__addSubtract(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) {
        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 duration_as__valueOf () {
        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 duration_get__get (units) {
        units = normalizeUnits(units);
        return this[units + 's']();
    }

    function makeGetter(name) {
        return function () {
            return this._data[name];
        };
    }

    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 = {
        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 duration_humanize__relativeTime (posNegDuration, withoutSuffix, locale) {
        var duration = create__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.s && ['s', 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 a threshold for relative time strings
    function duration_humanize__getSetRelativeTimeThreshold (threshold, limit) {
        if (thresholds[threshold] === undefined) {
            return false;
        }
        if (limit === undefined) {
            return thresholds[threshold];
        }
        thresholds[threshold] = limit;
        return true;
    }

    function humanize (withSuffix) {
        var locale = this.localeData();
        var output = duration_humanize__relativeTime(this, !withSuffix, locale);

        if (withSuffix) {
            output = locale.pastFuture(+this, output);
        }

        return locale.postformat(output);
    }

    var iso_string__abs = Math.abs;

    function iso_string__toISOString() {
        // 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)
        var seconds = iso_string__abs(this._milliseconds) / 1000;
        var days         = iso_string__abs(this._days);
        var months       = iso_string__abs(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 duration_prototype__proto = Duration.prototype;

    duration_prototype__proto.abs            = duration_abs__abs;
    duration_prototype__proto.add            = duration_add_subtract__add;
    duration_prototype__proto.subtract       = duration_add_subtract__subtract;
    duration_prototype__proto.as             = as;
    duration_prototype__proto.asMilliseconds = asMilliseconds;
    duration_prototype__proto.asSeconds      = asSeconds;
    duration_prototype__proto.asMinutes      = asMinutes;
    duration_prototype__proto.asHours        = asHours;
    duration_prototype__proto.asDays         = asDays;
    duration_prototype__proto.asWeeks        = asWeeks;
    duration_prototype__proto.asMonths       = asMonths;
    duration_prototype__proto.asYears        = asYears;
    duration_prototype__proto.valueOf        = duration_as__valueOf;
    duration_prototype__proto._bubble        = bubble;
    duration_prototype__proto.get            = duration_get__get;
    duration_prototype__proto.milliseconds   = milliseconds;
    duration_prototype__proto.seconds        = seconds;
    duration_prototype__proto.minutes        = minutes;
    duration_prototype__proto.hours          = hours;
    duration_prototype__proto.days           = days;
    duration_prototype__proto.weeks          = weeks;
    duration_prototype__proto.months         = months;
    duration_prototype__proto.years          = years;
    duration_prototype__proto.humanize       = humanize;
    duration_prototype__proto.toISOString    = iso_string__toISOString;
    duration_prototype__proto.toString       = iso_string__toISOString;
    duration_prototype__proto.toJSON         = iso_string__toISOString;
    duration_prototype__proto.locale         = locale;
    duration_prototype__proto.localeData     = localeData;

    // Deprecations
    duration_prototype__proto.toIsoString = deprecate('toIsoString() is deprecated. Please use toISOString() instead (notice the capitals)', iso_string__toISOString);
    duration_prototype__proto.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


    utils_hooks__hooks.version = '2.12.0';

    setHookCallback(local__createLocal);

    utils_hooks__hooks.fn                    = momentPrototype;
    utils_hooks__hooks.min                   = min;
    utils_hooks__hooks.max                   = max;
    utils_hooks__hooks.now                   = now;
    utils_hooks__hooks.utc                   = create_utc__createUTC;
    utils_hooks__hooks.unix                  = moment__createUnix;
    utils_hooks__hooks.months                = lists__listMonths;
    utils_hooks__hooks.isDate                = isDate;
    utils_hooks__hooks.locale                = locale_locales__getSetGlobalLocale;
    utils_hooks__hooks.invalid               = valid__createInvalid;
    utils_hooks__hooks.duration              = create__createDuration;
    utils_hooks__hooks.isMoment              = isMoment;
    utils_hooks__hooks.weekdays              = lists__listWeekdays;
    utils_hooks__hooks.parseZone             = moment__createInZone;
    utils_hooks__hooks.localeData            = locale_locales__getLocale;
    utils_hooks__hooks.isDuration            = isDuration;
    utils_hooks__hooks.monthsShort           = lists__listMonthsShort;
    utils_hooks__hooks.weekdaysMin           = lists__listWeekdaysMin;
    utils_hooks__hooks.defineLocale          = defineLocale;
    utils_hooks__hooks.updateLocale          = updateLocale;
    utils_hooks__hooks.locales               = locale_locales__listLocales;
    utils_hooks__hooks.weekdaysShort         = lists__listWeekdaysShort;
    utils_hooks__hooks.normalizeUnits        = normalizeUnits;
    utils_hooks__hooks.relativeTimeThreshold = duration_humanize__getSetRelativeTimeThreshold;
    utils_hooks__hooks.prototype             = momentPrototype;

    var _moment = utils_hooks__hooks;

    return _moment;

}));
//! 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_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_Mar_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'
        },
        ordinalParse: /\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_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('_'),
        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('_'),
        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
        },
        ordinalParse: /\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_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('_'),
        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 (/-MMM-/.test(format)) {
                return monthsShort[m.month()];
            } else {
                return monthsShortDot[m.month()];
            }
        },
        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('_'),
        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'
        },
        ordinalParse : /\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_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('_'),
        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('_'),
        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'
        },
        ordinalParse: /\d{1,2}(er|)/,
        ordinal : function (number) {
            return number + (number === 1 ? 'er' : '');
        },
        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_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_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
        },
        ordinalParse: /\d{1,2}\./,
        ordinal : '%d.',
        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 hu;

}));
//! moment.js locale configuration
//! locale : Bahasa Indonesia (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_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_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'
        },
        ordinalParse : /\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_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 : 'Ah時m分',
            LTS : 'Ah時m分s秒',
            L : 'YYYY/MM/DD',
            LL : 'YYYY年M月D日',
            LLL : 'YYYY年M月D日Ah時m分',
            LLLL : 'YYYY年M月D日Ah時m分 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'
        },
        ordinalParse : /\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_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('_'),
        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('_'),
        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 : 'for %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'
        },
        ordinalParse: /\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/jjupiter

;(function (global, factory) {
   typeof exports === 'object' && typeof module !== 'undefined'
       && typeof require === 'function' ? factory(require('../moment')) :
   typeof define === 'function' && define.amd ? define('moment_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('_'),
        monthsShortWithoutDots = 'jan_feb_mrt_apr_mei_jun_jul_aug_sep_okt_nov_dec'.split('_');

    var nl = moment.defineLocale('nl', {
        months : 'januari_februari_maart_april_mei_juni_juli_augustus_september_oktober_november_december'.split('_'),
        monthsShort : function (m, format) {
            if (/-MMM-/.test(format)) {
                return monthsShortWithoutDots[m.month()];
            } else {
                return monthsShortWithDots[m.month()];
            }
        },
        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('_'),
        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'
        },
        ordinalParse: /\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_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('_'),
        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 (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 : 'nie_pon_wt_śr_czw_pt_sb'.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
        },
        ordinalParse: /\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 : brazilian portuguese (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_pt-br',['moment'], factory) :
   factory(global.moment)
}(this, function (moment) { 'use strict';


    var pt_br = 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 : 'Dom_2ª_3ª_4ª_5ª_6ª_Sáb'.split('_'),
        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'
        },
        ordinalParse: /\d{1,2}º/,
        ordinal : '%dº'
    });

    return pt_br;

}));
//! 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_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[й|я]/i, /^июн/i, /^июл/i, /^авг/i, /^сен/i, /^окт/i, /^ноя/i, /^дек/i];

    // http://new.gramota.ru/spravka/rules/139-prop : § 103
    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 : {
            format: 'янв_фев_мар_апр_мая_июня_июля_авг_сен_окт_ноя_дек'.split('_'),
            standalone: 'янв_фев_март_апр_май_июнь_июль_авг_сен_окт_ноя_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,
        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';
            }
        },
        ordinalParse: /\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_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('_')
        },
        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';
            }
        },
        ordinalParse: /\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;

}));
//! moment.js locale configuration
//! locale : chinese (zh-cn)
//! author : suupic : https://github.com/suupic
//! author : Zeno Zeng : https://github.com/zenozeng

;(function (global, factory) {
   typeof exports === 'object' && typeof module !== 'undefined'
       && typeof require === 'function' ? factory(require('../moment')) :
   typeof define === 'function' && define.amd ? define('moment_zh',['moment'], factory) :
   factory(global.moment)
}(this, function (moment) { 'use strict';


    var zh_cn = moment.defineLocale('zh-cn', {
        months : '一月_二月_三月_四月_五月_六月_七月_八月_九月_十月_十一月_十二月'.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 : '星期日_星期一_星期二_星期三_星期四_星期五_星期六'.split('_'),
        weekdaysShort : '周日_周一_周二_周三_周四_周五_周六'.split('_'),
        weekdaysMin : '日_一_二_三_四_五_六'.split('_'),
        longDateFormat : {
            LT : 'Ah点mm分',
            LTS : 'Ah点m分s秒',
            L : 'YYYY-MM-DD',
            LL : 'YYYY年MMMD日',
            LLL : 'YYYY年MMMD日Ah点mm分',
            LLLL : 'YYYY年MMMD日ddddAh点mm分',
            l : 'YYYY-MM-DD',
            ll : 'YYYY年MMMD日',
            lll : 'YYYY年MMMD日Ah点mm分',
            llll : 'YYYY年MMMD日ddddAh点mm分'
        },
        meridiemParse: /凌晨|早上|上午|中午|下午|晚上/,
        meridiemHour: function (hour, meridiem) {
            if (hour === 12) {
                hour = 0;
            }
            if (meridiem === '凌晨' || meridiem === '早上' ||
                    meridiem === '上午') {
                return hour;
            } else if (meridiem === '下午' || meridiem === '晚上') {
                return hour + 12;
            } else {
                // '中午'
                return hour >= 11 ? hour : hour + 12;
            }
        },
        meridiem : function (hour, minute, isLower) {
            var hm = hour * 100 + minute;
            if (hm < 600) {
                return '凌晨';
            } else if (hm < 900) {
                return '早上';
            } else if (hm < 1130) {
                return '上午';
            } else if (hm < 1230) {
                return '中午';
            } else if (hm < 1800) {
                return '下午';
            } else {
                return '晚上';
            }
        },
        calendar : {
            sameDay : function () {
                return this.minutes() === 0 ? '[今天]Ah[点整]' : '[今天]LT';
            },
            nextDay : function () {
                return this.minutes() === 0 ? '[明天]Ah[点整]' : '[明天]LT';
            },
            lastDay : function () {
                return this.minutes() === 0 ? '[昨天]Ah[点整]' : '[昨天]LT';
            },
            nextWeek : function () {
                var startOfWeek, prefix;
                startOfWeek = moment().startOf('week');
                prefix = this.unix() - startOfWeek.unix() >= 7 * 24 * 3600 ? '[下]' : '[本]';
                return this.minutes() === 0 ? prefix + 'dddAh点整' : prefix + 'dddAh点mm';
            },
            lastWeek : function () {
                var startOfWeek, prefix;
                startOfWeek = moment().startOf('week');
                prefix = this.unix() < startOfWeek.unix()  ? '[上]' : '[本]';
                return this.minutes() === 0 ? prefix + 'dddAh点整' : prefix + 'dddAh点mm';
            },
            sameElse : 'LL'
        },
        ordinalParse: /\d{1,2}(日|月|周)/,
        ordinal : function (number, period) {
            switch (period) {
            case 'd':
            case 'D':
            case 'DDD':
                return number + '日';
            case 'M':
                return number + '月';
            case 'w':
            case 'W':
                return number + '周';
            default:
                return number;
            }
        },
        relativeTime : {
            future : '%s内',
            past : '%s前',
            s : '几秒',
            m : '1 分钟',
            mm : '%d 分钟',
            h : '1 小时',
            hh : '%d 小时',
            d : '1 天',
            dd : '%d 天',
            M : '1 个月',
            MM : '%d 个月',
            y : '1 年',
            yy : '%d 年'
        },
        week : {
            // GB/T 7408-1994《数据元和交换格式·信息交换·日期和时间表示法》与ISO 8601:1988等效
            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 zh_cn;

}));
/*
 * 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_af',
        'moment_de',
        'moment_es',
        'moment_fr',
        'moment_he',
        'moment_hu',
        'moment_id',
        'moment_it',
        'moment_ja',
        'moment_nb',
        'moment_nl',
        'moment_pl',
        'moment_pt-br',
        'moment_ru',
        'moment_uk',
        'moment_zh'
        ], function (moment) {
            return moment;
        });
})(this);

/*
 * 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: true */
/* 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)); },
};
}));

// 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

(function (root, factory) {
    if (typeof define === 'function' && define.amd) {
        define('strophe-base64', [],function () {
            return factory();
        });
    } else {
        // Browser globals
        root.Base64 = factory();
    }
}(this, function () {
    var keyStr = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";

    var obj = {
        /**
         * Encodes a string in base64
         * @param {String} input The string to encode in base64.
         */
        encode: function (input) {
            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;
        },

        /**
         * Decodes a base64 string.
         * @param {String} input The string to decode.
         */
        decode: function (input) {
            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;
        }
    };
    return obj;
}));

/*
 * 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 (b) {
    /*
     * 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 */

(function (root, factory) {
    if (typeof define === 'function' && define.amd) {
        define('strophe-polyfill', [], function () {
            return factory();
        });
    } else {
        // Browser globals
        return factory();
    }
}(this, function () {

/** PrivateFunction: 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
 *  <a href='https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Function/bind'>MDC's bind() documentation</a> and
 *  <a href='http://benjamin.smedbergs.us/blog/2007-01-03/bound-functions-and-function-imports-in-javascript/'>Bound Functions and Function Imports in JavaScript</a>
 *  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)));
        };
    };
}

/** PrivateFunction: 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]';
    };
}

/** PrivateFunction: 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;
        };
    }
}));

/*
    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, window, setTimeout, clearTimeout, console, ActiveXObject, DOMParser */

(function (root, factory) {
    if (typeof define === 'function' && define.amd) {
        define('strophe-core', [
            'strophe-sha1',
            'strophe-base64',
            'strophe-md5',
            'strophe-utils',
            "strophe-polyfill"
        ], function () {
            return factory.apply(this, arguments);
        });
    } else {
        // Browser globals
        var o = factory(root.SHA1, root.Base64, root.MD5, root.stropheUtils);
        window.Strophe =        o.Strophe;
        window.$build =         o.$build;
        window.$iq =            o.$iq;
        window.$msg =           o.$msg;
        window.$pres =          o.$pres;
        window.SHA1 =           o.SHA1;
        window.Base64 =         o.Base64;
        window.MD5 =            o.MD5;
        window.b64_hmac_sha1 =  o.SHA1.b64_hmac_sha1;
        window.b64_sha1 =       o.SHA1.b64_sha1;
        window.str_hmac_sha1 =  o.SHA1.str_hmac_sha1;
        window.str_sha1 =       o.SHA1.str_sha1;
    }
}(this, function (SHA1, Base64, 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
     *  The version of the Strophe library. Unreleased builds will have
     *  a version of head-HASH where HASH is a partial revision.
     */
    VERSION: "@VERSION@",

    /** 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 (window.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;
    },

    /** 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 +
                "='" + elem.attributes[i].value
                    .replace(/&/g, "&amp;")
                       .replace(/\'/g, "&apos;")
                       .replace(/>/g, "&gt;")
                       .replace(/</g, "&lt;") + "'";
               }
        }

        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: 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 || {matchBare: false};

    // default matchBare to false if undefined
    if (!this.options.matchBare) {
        this.options.matchBare = false;
    }

    if (this.options.matchBare) {
        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: 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 nsMatch;
        var from = null;

        if (this.options.matchBare) {
            from = Strophe.getBareJidFromJid(elem.getAttribute('from'));
        } else {
            from = elem.getAttribute('from');
        }

        nsMatch = false;
        if (!this.ns) {
            nsMatch = true;
        } else {
            var that = this;
            Strophe.forEachChild(elem, null, function (elem) {
                if (elem.getAttribute("xmlns") == that.ns) {
                    nsMatch = true;
                }
            });

            nsMatch = nsMatch || elem.getAttribute("xmlns") == this.ns;
        }

        var elem_type = elem.getAttribute("type");
        if (nsMatch &&
            (!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) {
            if (e.sourceURL) {
                Strophe.fatal("error: " + this.handler +
                              " " + e.sourceURL + ":" +
                              e.line + " - " + e.name + ": " + e.message);
            } else if (e.fileName) {
                if (typeof(console) != "undefined") {
                    console.trace();
                    console.error(this.handler, " - error - ", e, e.message);
                }
                Strophe.fatal("error: " + this.handler + " " +
                              e.fileName + ":" + e.lineNumber + " - " +
                              e.name + ": " + e.message);
            } else {
                Strophe.fatal("error: " + e.message + "\n" + e.stack);
            }

            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:
 *  ------------------------------------------
 *
 *  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.
 *
 *  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.
 *
 *  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._authentication = {};
    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);

    // 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._authentication = {};

        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: 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.
     */
    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 {
                window.sessionStorage.setItem('_strophe_', '_strophe_');
                window.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: 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');

        // inject id if not found
        if (!id) {
            id = this.getUniqueId("sendIQ");
            elem.setAttribute("id", id);
        }

        var expectedFrom = elem.getAttribute("to");
        var fulljid = this.jid;

        var handler = this.addHandler(function (stanza) {
            // remove timeout handler if there is one
            if (timeoutHandler) {
                that.deleteTimedHandler(timeoutHandler);
            }

            var acceptable = false;
            var from = stanza.getAttribute("from");
            if (from === expectedFrom ||
               (!expectedFrom &&
                   (from === Strophe.getBareJidFromJid(fulljid) ||
                    from === Strophe.getDomainFromJid(fulljid) ||
                    from === fulljid))) {
                acceptable = true;
            }

            if (!acceptable) {
                throw {
                    name: "StropheError",
                    message: "Got answer to IQ from wrong jid:" + from +
                             "\nExpected jid: " + expectedFrom
                };
            }

            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, setup 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.
     *
     *  The options argument contains handler matching flags that affect how
     *  matches are determined. Currently the only flag is matchBare (a
     *  boolean). When matchBare is 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 {matchBare: true} as the value of
     *  options. The default value for matchBare is false.
     *
     *  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) type - The stanza type attribute 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: 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();
        }
    },

    /** 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.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 Conncection.
     */
    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;
        }

        this._authentication.sasl_scram_sha1 = false;
        this._authentication.sasl_plain = false;
        this._authentication.sasl_digest_md5 = false;
        this._authentication.sasl_anonymous = false;

        this._authentication.legacy_auth = false;

        // 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;
        }
        var mechanisms = bodyWrap.getElementsByTagName("mechanism");
        var matched = [];
        var i, mech, found_authentication = false;
        if (!hasFeatures) {
            this._proto._no_auth_received(_callback);
            return;
        }
        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]);
            }
        }
        this._authentication.legacy_auth =
            bodyWrap.getElementsByTagName("auth").length > 0;
        found_authentication = this._authentication.legacy_auth ||
            matched.length > 0;
        if (!found_authentication) {
            this._proto._no_auth_received(_callback);
            return;
        }
        if (this.do_authentication !== false)
            this.authenticate(matched);
    },

    /** Function: authenticate
     * Set up authentication
     *
     *  Contiunues the initial connection request by setting up authentication
     *  handlers and start the authentication process.
     *
     *  SASL authentication will be attempted if available, otherwise
     *  the code will fall back to legacy authentication.
     *
     */
    authenticate: function (matched) {
      var i;
      // Sorting matched mechanisms according to priority.
      for (i = 0; i < matched.length - 1; ++i) {
        var higher = i;
        for (var j = i + 1; j < matched.length; ++j) {
          if (matched[j].prototype.priority > matched[higher].prototype.priority) {
            higher = j;
          }
        }
        if (higher != i) {
          var swap = matched[i];
          matched[i] = matched[higher];
          matched[higher] = swap;
        }
      }

      // run each mechanism
      var mechanism_found = false;
      for (i = 0; i < matched.length; ++i) {
        if (!matched[i].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 matched[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(Base64.encode(response));
        }

        this.send(request_auth_exchange.tree());

        mechanism_found = true;
        break;
      }

      if (!mechanism_found) {
        // if none of the mechanism worked
        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());
        }
      }

    },

    _sasl_challenge_cb: function(elem) {
      var challenge = Base64.decode(Strophe.getText(elem));
      var response = this._sasl_mechanism.onChallenge(this, challenge);

      var stanza = $build('response', {
          xmlns: Strophe.NS.SASL
      });
      if (response !== "") {
        stanza.t(Base64.encode(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 = Base64.decode(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
 *
 *  SCRAM-SHA1 - 40
 *  DIGEST-MD5 - 30
 *  Plain - 20
 */

/**
 * 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
   */

// Building SASL callbacks

/** PrivateConstructor: SASLAnonymous
 *  SASL Anonymous authentication.
 */
Strophe.SASLAnonymous = function() {};

Strophe.SASLAnonymous.prototype = new Strophe.SASLMechanism("ANONYMOUS", false, 10);

Strophe.SASLAnonymous.test = function(connection) {
  return connection.authcid === null;
};

Strophe.Connection.prototype.mechanisms[Strophe.SASLAnonymous.prototype.name] = Strophe.SASLAnonymous;

/** PrivateConstructor: SASLPlain
 *  SASL Plain authentication.
 */
Strophe.SASLPlain = function() {};

Strophe.SASLPlain.prototype = new Strophe.SASLMechanism("PLAIN", true, 20);

Strophe.SASLPlain.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);
};

Strophe.Connection.prototype.mechanisms[Strophe.SASLPlain.prototype.name] = Strophe.SASLPlain;

/** PrivateConstructor: SASLSHA1
 *  SASL SCRAM SHA 1 authentication.
 */
Strophe.SASLSHA1 = function() {};

Strophe.SASLSHA1.prototype = new Strophe.SASLMechanism("SCRAM-SHA-1", true, 40);

Strophe.SASLSHA1.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 = Base64.decode(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=" + Base64.encode(SHA1.binb2str(clientKey));
    return responseText;
  }.bind(this);

  return auth_str;
};

Strophe.Connection.prototype.mechanisms[Strophe.SASLSHA1.prototype.name] = Strophe.SASLSHA1;

/** PrivateConstructor: SASLMD5
 *  SASL DIGEST MD5 authentication.
 */
Strophe.SASLMD5 = function() {};

Strophe.SASLMD5.prototype = new Strophe.SASLMechanism("DIGEST-MD5", false, 30);

Strophe.SASLMD5.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 "";
  }.bind(this);

  return responseText;
};

Strophe.Connection.prototype.mechanisms[Strophe.SASLMD5.prototype.name] = Strophe.SASLMD5;

/** PrivateConstructor: SASLOAuthBearer
 *  SASL OAuth Bearer authentication.
 */
Strophe.SASLOAuthBearer = function() {};

Strophe.SASLOAuthBearer.prototype = new Strophe.SASLMechanism("OAUTHBEARER", true, 80);

Strophe.SASLOAuthBearer.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);
};

Strophe.Connection.prototype.mechanisms[Strophe.SASLOAuthBearer.prototype.name] = Strophe.SASLOAuthBearer;

return {
    Strophe:        Strophe,
    $build:         $build,
    $msg:           $msg,
    $iq:            $iq,
    $pres:          $pres,
    SHA1:           SHA1,
    Base64:         Base64,
    MD5:            MD5,
};
}));

/*
    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._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)))
        {
            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); }
    },

    /** 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: _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: _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;
        }

        // request complete
        var reqStatus;
        if (req.xhr.readyState == 4) {
            reqStatus = 0;
            try {
                reqStatus = req.xhr.status;
            } catch (e) {
                // ignore errors from undefined status attribute.  works
                // around a browser bug
            }

            if (typeof(reqStatus) == "undefined") {
                reqStatus = 0;
            }

            if (this.disconnecting) {
                if (reqStatus >= 400) {
                    this._hitError(reqStatus);
                    return;
                }
            }

            var reqIs0 = (this._requests[0] == req);
            var reqIs1 = (this._requests[1] == req);

            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");
            }

            // request succeeded
            if (reqStatus == 200) {
                // 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);

                // call handler
                Strophe.debug("request id " +
                              req.id + "." +
                              req.sends + " got 200");
                func(req);
                this.errors = 0;
            } else {
                Strophe.error("request id " +
                              req.id + "." +
                              req.sends + " error " + reqStatus +
                              " happened");
                if (reqStatus === 0 ||
                    (reqStatus >= 400 && reqStatus < 600) ||
                    reqStatus >= 12000) {
                    this._hitError(reqStatus);
                    if (reqStatus >= 400 && reqStatus < 500) {
                        this._conn._changeConnectStatus(Strophe.Status.DISCONNECTING, null);
                        this._conn._doDisconnect();
                    }
                }
            }

            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 = -1;

        try {
            if (req.xhr.readyState == 4) {
                reqStatus = req.xhr.status;
            }
        } catch (e) {
            Strophe.error("caught an error in _requests[" + i +
                          "], reqStatus: " + reqStatus);
        }

        if (typeof(reqStatus) == "undefined") {
            reqStatus = -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 {
                req.xhr.open("POST", this._conn.service, this._conn.options.sync ? false : true);
                req.xhr.setRequestHeader("Content-Type", "text/xml; charset=utf-8");
                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;

                // XXX: setTimeout should be called only with function expressions (23974bc1)
                setTimeout(function() {
                    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 += " - " + condition;
        }

        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);

/*!
 * 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;
}));

/**
 * @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;
});

// RequireJS UnderscoreJS template plugin
// http://github.com/jfparadis/requirejs-tpl
//
// An alternative to http://github.com/ZeeAgency/requirejs-tpl
//
// Using UnderscoreJS micro-templates at http://underscorejs.org/#template
// Using and RequireJS text.js at http://requirejs.org/docs/api.html#text
// @author JF Paradis
// @version 0.0.2
//
// Released under the MIT license
//
// Usage:
//   require(['backbone', 'tpl!mytemplate'], function (Backbone, mytemplate) {
//     return Backbone.View.extend({
//       initialize: function(){
//         this.render();
//       },
//       render: function(){
//         this.$el.html(mytemplate({message: 'hello'}));
//     });
//   });
//
// Configuration: (optional)
//   require.config({
//     tpl: {
//       extension: '.tpl' // default = '.html'
//     }
//   });

/*jslint nomen: true */
/*global define: false */

define('tpl',['text', 'underscore'], function (text, _) {
    'use strict';

    var buildMap = {},
        buildTemplateSource = "define('{pluginName}!{moduleName}', function () { return {source}; });\n";

    return {
        version: '0.0.2',

        load: function (moduleName, parentRequire, onload, config) {

            if (config.tpl && config.tpl.templateSettings) {
                _.templateSettings = config.tpl.templateSettings;
            }

            if (buildMap[moduleName]) {
                onload(buildMap[moduleName]);

            } else {
                var ext = (config.tpl && config.tpl.extension) || '.html';
                var path = (config.tpl && config.tpl.path) || '';
                text.load(path + moduleName + ext, parentRequire, function (source) {
                    buildMap[moduleName] = _.template(source);
                    onload(buildMap[moduleName]);
                }, config);
            }
        },

        write: function (pluginName, moduleName, write) {
            var build = buildMap[moduleName],
                source = build && build.source;
            if (source) {
                write.asModule(pluginName + '!' + moduleName,
                    buildTemplateSource
                    .replace('{pluginName}', pluginName)
                    .replace('{moduleName}', moduleName)
                    .replace('{source}', source));
            }
        }
    };
});


define('tpl!action', [],function () { return function(obj){
var __t,__p='',__j=Array.prototype.join,print=function(){__p+=__j.call(arguments,'');};
with(obj||{}){
__p+='<div class="chat-message '+
((__t=(extra_classes))==null?'':__t)+
'" data-isodate="'+
((__t=(isodate))==null?'':__t)+
'">\n    <span class="chat-msg-author chat-msg-'+
((__t=(sender))==null?'':__t)+
'">'+
((__t=(time))==null?'':__t)+
' **'+
((__t=(username))==null?'':__t)+
' </span>\n    <span class="chat-msg-content">'+
((__t=(message))==null?'':__t)+
'</span>\n</div>\n';
}
return __p;
}; });


define('tpl!add_contact_dropdown', [],function () { return function(obj){
var __t,__p='',__j=Array.prototype.join,print=function(){__p+=__j.call(arguments,'');};
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="'+
((__t=(label_click_to_chat))==null?'':__t)+
'"> '+
((__t=(label_add_contact))==null?'':__t)+
'</a>\n    </dt>\n    <dd class="search-xmpp" style="display:none"><ul></ul></dd>\n</dl>\n';
}
return __p;
}; });


define('tpl!add_contact_form', [],function () { return function(obj){
var __t,__p='',__j=Array.prototype.join,print=function(){__p+=__j.call(arguments,'');};
with(obj||{}){
__p+='<li>\n    <form class="pure-form add-xmpp-contact">\n        <input type="text"\n            name="identifier"\n            class="username"\n            placeholder="'+
((__t=(label_contact_username))==null?'':__t)+
'"/>\n        <button class="pure-button button-primary" type="submit">'+
((__t=(label_add))==null?'':__t)+
'</button>\n    </form>\n</li>\n';
}
return __p;
}; });


define('tpl!change_status_message', [],function () { return function(obj){
var __t,__p='',__j=Array.prototype.join,print=function(){__p+=__j.call(arguments,'');};
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" '+
((__t=(status_message))==null?'':__t)+
' placeholder="'+
((__t=(label_custom_status))==null?'':__t)+
'"/>\n        <input type="submit" class="pure-button button-primary" value="'+
((__t=(label_save))==null?'':__t)+
'"/>\n    </span>\n</fieldset>\n</form>\n';
}
return __p;
}; });


define('tpl!chat_status', [],function () { return function(obj){
var __t,__p='',__j=Array.prototype.join,print=function(){__p+=__j.call(arguments,'');};
with(obj||{}){
__p+='<div class="xmpp-status">\n    <a class="choose-xmpp-status '+
((__t=(chat_status))==null?'':__t)+
' icon-'+
((__t=(chat_status))==null?'':__t)+
'" data-value="'+
((__t=(status_message))==null?'':__t)+
'" href="#" title="'+
((__t=(desc_change_status))==null?'':__t)+
'">\n        '+
((__t=(status_message))==null?'':__t)+
'\n    </a>\n    <a class="change-xmpp-status-message icon-pencil" href="#" title="'+
((__t=(desc_custom_status))==null?'':__t)+
'"></a>\n</div>\n';
}
return __p;
}; });


define('tpl!chatarea', [],function () { return function(obj){
var __t,__p='',__j=Array.prototype.join,print=function(){__p+=__j.call(arguments,'');};
with(obj||{}){
__p+='<div class="chat-area">\n    <div class="chat-content"></div>\n    <div class="new-msgs-indicator hidden">▼ '+
((__t=( unread_msgs ))==null?'':__t)+
' ▼</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" \n            placeholder="'+
((__t=(label_message))==null?'':__t)+
'"/>\n    </form>\n</div>\n';
}
return __p;
}; });


define('tpl!chatbox', [],function () { return function(obj){
var __t,__p='',__j=Array.prototype.join,print=function(){__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="'+
((__t=(info_close))==null?'':__t)+
'"></a>\n        <div class="chat-title">\n            ';
 if (url) { 
__p+='\n                <a href="'+
((__t=(url))==null?'':__t)+
'" target="_blank" rel="noopener" class="user">\n            ';
 } 
__p+='\n                    '+
((__t=( title ))==null?'':__t)+
'\n            ';
 if (url) { 
__p+='\n                </a>\n            ';
 } 
__p+='\n        </div>\n        <p class="user-custom-message"><p/>\n    </div>\n    <div class="chat-body">\n        <div class="chat-content"></div>\n        <div class="new-msgs-indicator hidden">▼ '+
((__t=( unread_msgs ))==null?'':__t)+
' ▼</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"\n            placeholder="'+
((__t=(label_personal_message))==null?'':__t)+
'"/>\n        </form>\n        ';
 } 
__p+='\n    </div>\n</div>\n';
}
return __p;
}; });


define('tpl!chatroom', [],function () { return function(obj){
var __t,__p='',__j=Array.prototype.join,print=function(){__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-chatroom">\n        <a class="chatbox-btn close-chatbox-button icon-close"></a>\n        <a class="chatbox-btn configure-chatroom-button icon-wrench" style="display:none"></a>\n        <div class="chat-title"> '+
((__t=( _.escape(name) ))==null?'':__t)+
' </div>\n        <p class="chatroom-topic"><p/>\n    </div>\n    <div class="chat-body chatroom-body"><span class="spinner centered"/></div>\n</div>\n';
}
return __p;
}; });


define('tpl!chatroom_form', [],function () { return function(obj){
var __t,__p='',__j=Array.prototype.join,print=function(){__p+=__j.call(arguments,'');};
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_password_form', [],function () { return function(obj){
var __t,__p='',__j=Array.prototype.join,print=function(){__p+=__j.call(arguments,'');};
with(obj||{}){
__p+='<div class="chatroom-form-container">\n    <form class="pure-form converse-form chatroom-form">\n        <fieldset>\n            <legend>'+
((__t=(heading))==null?'':__t)+
'</legend>\n            <label>'+
((__t=(label_password))==null?'':__t)+
'</label>\n            <input type="password" name="password"/>\n        </fieldset>\n        <fieldset>\n            <input class="pure-button button-primary" type="submit" value="'+
((__t=(label_submit))==null?'':__t)+
'"/>\n        </fieldset>\n    </form>\n</div>\n';
}
return __p;
}; });


define('tpl!chatroom_nickname_form', [],function () { return function(obj){
var __t,__p='',__j=Array.prototype.join,print=function(){__p+=__j.call(arguments,'');};
with(obj||{}){
__p+='<div class="chatroom-form-container">\n    <form class="pure-form converse-form chatroom-form">\n        <fieldset>\n            <label>'+
((__t=(heading))==null?'':__t)+
'</label>\n            <p class="validation-message">'+
((__t=(validation_message))==null?'':__t)+
'</p>\n            <input type="text" required="required" name="nick" class="new-chatroom-nick" placeholder="'+
((__t=(label_nickname))==null?'':__t)+
'"/>\n        </fieldset>\n        <fieldset>\n            <input type="submit" class="pure-button button-primary" name="join" value="'+
((__t=(label_join))==null?'':__t)+
'"/>\n        </fieldset>\n    </form>\n</div>\n';
}
return __p;
}; });


define('tpl!chatroom_sidebar', [],function () { return function(obj){
var __t,__p='',__j=Array.prototype.join,print=function(){__p+=__j.call(arguments,'');};
with(obj||{}){
__p+='<!-- <div class="occupants"> -->\n';
 if (allow_muc_invitations) { 
__p+='\n<form class="pure-form room-invite">\n    <input class="invited-contact" placeholder="'+
((__t=(label_invitation))==null?'':__t)+
'" type="text"/>\n</form>\n';
 } 
__p+='\n<p class="occupants-heading">'+
((__t=(label_occupants))==null?'':__t)+
':</p>\n<ul class="occupant-list"></ul>\n<!-- </div> -->\n';
}
return __p;
}; });


define('tpl!chatrooms_tab', [],function () { return function(obj){
var __t,__p='',__j=Array.prototype.join,print=function(){__p+=__j.call(arguments,'');};
with(obj||{}){
__p+='<li><a class="s" href="#chatrooms">'+
((__t=(label_rooms))==null?'':__t)+
'</a></li>\n';
}
return __p;
}; });


define('tpl!chats_panel', [],function () { return function(obj){
var __t,__p='',__j=Array.prototype.join,print=function(){__p+=__j.call(arguments,'');};
with(obj||{}){
__p+='<div id="minimized-chats">\n    <a id="toggle-minimized-chats" href="#"></a>\n    <div class="flyout minimized-chats-flyout"></div>\n</div>\n';
}
return __p;
}; });


define('tpl!choose_status', [],function () { return function(obj){
var __t,__p='',__j=Array.prototype.join,print=function(){__p+=__j.call(arguments,'');};
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', [],function () { return function(obj){
var __t,__p='',__j=Array.prototype.join,print=function(){__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">'+
((__t=(label_online))==null?'':__t)+
'</option>\n            <option value="dnd">'+
((__t=(label_busy))==null?'':__t)+
'</option>\n            <option value="away">'+
((__t=(label_away))==null?'':__t)+
'</option>\n            ';
 if (include_offline_state)  { 
__p+='\n            <option value="offline">'+
((__t=(label_offline))==null?'':__t)+
'</option>\n            ';
 } 
__p+='\n            ';
 if (allow_logout)  { 
__p+='\n            <option value="logout">'+
((__t=(label_logout))==null?'':__t)+
'</option>\n            ';
 } 
__p+='\n        </select>\n    </span>\n</form>\n';
}
return __p;
}; });


define('tpl!contacts_tab', [],function () { return function(obj){
var __t,__p='',__j=Array.prototype.join,print=function(){__p+=__j.call(arguments,'');};
with(obj||{}){
__p+='<li><a class="s current" href="#users">'+
((__t=(label_contacts))==null?'':__t)+
'</a></li>\n';
}
return __p;
}; });


define('tpl!controlbox', [],function () { return function(obj){
var __t,__p='',__j=Array.prototype.join,print=function(){__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', [],function () { return function(obj){
var __t,__p='',__j=Array.prototype.join,print=function(){__p+=__j.call(arguments,'');};
with(obj||{}){
__p+='<span class="conn-feedback">'+
((__t=(label_toggle))==null?'':__t)+
'</span>\n<span style="display: none" id="online-count">(0)</span>\n';
}
return __p;
}; });


define('tpl!field', [],function () { return function(obj){
var __t,__p='',__j=Array.prototype.join,print=function(){__p+=__j.call(arguments,'');};
with(obj||{}){
__p+='<field var="'+
((__t=(name))==null?'':__t)+
'">';
 if (_.isArray(value)) { 
__p+='\n    ';
 _.each(value,function(arrayValue) { 
__p+='<value>'+
((__t=(arrayValue))==null?'':__t)+
'</value>';
 }); 
__p+='\n';
 } else { 
__p+='\n    <value>'+
((__t=(value))==null?'':__t)+
'</value>\n';
 } 
__p+='</field>\n';
}
return __p;
}; });


define('tpl!form_captcha', [],function () { return function(obj){
var __t,__p='',__j=Array.prototype.join,print=function(){__p+=__j.call(arguments,'');};
with(obj||{}){
__p+='';
 if (label) { 
__p+='\n<label>\n    '+
((__t=(label))==null?'':__t)+
'\n</label>\n';
 } 
__p+='\n<img src="data:'+
((__t=(type))==null?'':__t)+
';base64,'+
((__t=(data))==null?'':__t)+
'">\n<input name="'+
((__t=(name))==null?'':__t)+
'" type="text" ';
 if (required) { 
__p+=' class="required" ';
 } 
__p+=' >\n\n\n';
}
return __p;
}; });


define('tpl!form_checkbox', [],function () { return function(obj){
var __t,__p='',__j=Array.prototype.join,print=function(){__p+=__j.call(arguments,'');};
with(obj||{}){
__p+='<label>'+
((__t=(label))==null?'':__t)+
'</label>\n<input name="'+
((__t=(name))==null?'':__t)+
'" type="'+
((__t=(type))==null?'':__t)+
'" '+
((__t=(checked))==null?'':__t)+
'>\n';
}
return __p;
}; });


define('tpl!form_input', [],function () { return function(obj){
var __t,__p='',__j=Array.prototype.join,print=function(){__p+=__j.call(arguments,'');};
with(obj||{}){
__p+='';
 if (label) { 
__p+='\n<label>\n    '+
((__t=(label))==null?'':__t)+
'\n</label>\n';
 } 
__p+='\n<input name="'+
((__t=(name))==null?'':__t)+
'" type="'+
((__t=(type))==null?'':__t)+
'" \n    ';
 if (value) { 
__p+=' value="'+
((__t=(value))==null?'':__t)+
'" ';
 } 
__p+='\n    ';
 if (required) { 
__p+=' class="required" ';
 } 
__p+=' >\n';
}
return __p;
}; });


define('tpl!form_select', [],function () { return function(obj){
var __t,__p='',__j=Array.prototype.join,print=function(){__p+=__j.call(arguments,'');};
with(obj||{}){
__p+='<label>'+
((__t=(label))==null?'':__t)+
'</label>\n<select name="'+
((__t=(name))==null?'':__t)+
'"  ';
 if (multiple) { 
__p+=' multiple="multiple" ';
 } 
__p+='>'+
((__t=(options))==null?'':__t)+
'</select>\n';
}
return __p;
}; });


define('tpl!form_textarea', [],function () { return function(obj){
var __t,__p='',__j=Array.prototype.join,print=function(){__p+=__j.call(arguments,'');};
with(obj||{}){
__p+='<label class="label-ta">'+
((__t=(label))==null?'':__t)+
'</label>\n<textarea name="'+
((__t=(name))==null?'':__t)+
'">'+
((__t=(value))==null?'':__t)+
'</textarea>\n';
}
return __p;
}; });


define('tpl!form_username', [],function () { return function(obj){
var __t,__p='',__j=Array.prototype.join,print=function(){__p+=__j.call(arguments,'');};
with(obj||{}){
__p+='';
 if (label) { 
__p+='\n<label>\n    '+
((__t=(label))==null?'':__t)+
'\n</label>\n';
 } 
__p+='\n<div class="input-group">\n    <input name="'+
((__t=(name))==null?'':__t)+
'" type="'+
((__t=(type))==null?'':__t)+
'"\n        ';
 if (value) { 
__p+=' value="'+
((__t=(value))==null?'':__t)+
'" ';
 } 
__p+='\n        ';
 if (required) { 
__p+=' class="required" ';
 } 
__p+=' />\n    <span title="'+
((__t=(domain))==null?'':__t)+
'">'+
((__t=(domain))==null?'':__t)+
'</span>\n</div>\n';
}
return __p;
}; });


define('tpl!group_header', [],function () { return function(obj){
var __t,__p='',__j=Array.prototype.join,print=function(){__p+=__j.call(arguments,'');};
with(obj||{}){
__p+='<a href="#" class="group-toggle icon-'+
((__t=(toggle_state))==null?'':__t)+
'" title="'+
((__t=(desc_group_toggle))==null?'':__t)+
'">'+
((__t=(label_group))==null?'':__t)+
'</a>\n';
}
return __p;
}; });


define('tpl!info', [],function () { return function(obj){
var __t,__p='',__j=Array.prototype.join,print=function(){__p+=__j.call(arguments,'');};
with(obj||{}){
__p+='<div class="chat-info">'+
((__t=(message))==null?'':__t)+
'</div>\n';
}
return __p;
}; });


define('tpl!login_panel', [],function () { return function(obj){
var __t,__p='',__j=Array.prototype.join,print=function(){__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) { 
__p+='\n            <label>'+
((__t=(label_username))==null?'':__t)+
'</label>\n            <input type="text" name="jid" placeholder="'+
((__t=(placeholder_username))==null?'':__t)+
'">\n            <label>'+
((__t=(label_password))==null?'':__t)+
'</label>\n            <input type="password" name="password" placeholder="'+
((__t=(placeholder_password))==null?'':__t)+
'">\n            <input class="pure-button button-primary" type="submit" value="'+
((__t=(label_login))==null?'':__t)+
'">\n            <span class="conn-feedback"></span>\n        ';
 } 
__p+='\n        ';
 if (authentication == ANONYMOUS) { 
__p+='\n            <input type="pure-button button-primary" class="submit login-anon" value="'+
((__t=(label_anon_login))==null?'':__t)+
'"/>\n        ';
 } 
__p+='\n        ';
 if (authentication == PREBIND) { 
__p+='\n            <p>Disconnected.</p>\n        ';
 } 
__p+='\n    ';
 } 
__p+='\n</form>\n';
}
return __p;
}; });


define('tpl!login_tab', [],function () { return function(obj){
var __t,__p='',__j=Array.prototype.join,print=function(){__p+=__j.call(arguments,'');};
with(obj||{}){
__p+='<li><a class="current" href="#login-dialog">'+
((__t=(label_sign_in))==null?'':__t)+
'</a></li>\n';
}
return __p;
}; });


define('tpl!message', [],function () { return function(obj){
var __t,__p='',__j=Array.prototype.join,print=function(){__p+=__j.call(arguments,'');};
with(obj||{}){
__p+='<div class="chat-message '+
((__t=(extra_classes))==null?'':__t)+
'" data-isodate="'+
((__t=(isodate))==null?'':__t)+
'" data-msgid="'+
((__t=(msgid))==null?'':__t)+
'">\n    <span class="chat-msg-author chat-msg-'+
((__t=(sender))==null?'':__t)+
'">'+
((__t=(time))==null?'':__t)+
' '+
((__t=(username))==null?'':__t)+
':&nbsp;</span>\n    <span class="chat-msg-content">'+
((__t=(message))==null?'':__t)+
'</span>\n</div>\n';
}
return __p;
}; });


define('tpl!new_day', [],function () { return function(obj){
var __t,__p='',__j=Array.prototype.join,print=function(){__p+=__j.call(arguments,'');};
with(obj||{}){
__p+='<time class="chat-info chat-date" data-isodate="'+
((__t=(isodate))==null?'':__t)+
'">'+
((__t=(datestring))==null?'':__t)+
'</time>\n';
}
return __p;
}; });


define('tpl!occupant', [],function () { return function(obj){
var __t,__p='',__j=Array.prototype.join,print=function(){__p+=__j.call(arguments,'');};
with(obj||{}){
__p+='<li class="'+
((__t=(role))==null?'':__t)+
' occupant" id="'+
((__t=(id))==null?'':__t)+
'"\n    ';
 if (role === "moderator") { 
__p+='\n       title="'+
((__t=(desc_moderator))==null?'':__t)+
' '+
((__t=(hint_occupant))==null?'':__t)+
'"\n    ';
 } 
__p+='\n    ';
 if (role === "occupant") { 
__p+='\n       title="'+
((__t=(desc_occupant))==null?'':__t)+
' '+
((__t=(hint_occupant))==null?'':__t)+
'"\n    ';
 } 
__p+='\n    ';
 if (role === "visitor") { 
__p+='\n       title="'+
((__t=(desc_visitor))==null?'':__t)+
' '+
((__t=(hint_occupant))==null?'':__t)+
'"\n    ';
 } 
__p+='>'+
((__t=(nick))==null?'':__t)+
'</li>\n';
}
return __p;
}; });


define('tpl!pending_contact', [],function () { return function(obj){
var __t,__p='',__j=Array.prototype.join,print=function(){__p+=__j.call(arguments,'');};
with(obj||{}){
__p+='';
 if (allow_chat_pending_contacts)  { 
__p+='\n<a class="open-chat"href="#">\n';
 } 
__p+='\n<span class="pending-contact-name" title="Name: '+
((__t=(fullname))==null?'':__t)+
'\nJID: '+
((__t=(jid))==null?'':__t)+
'">'+
((__t=(fullname))==null?'':__t)+
'</span> \n';
 if (allow_chat_pending_contacts)  { 
__p+='\n</a>\n';
 } 
__p+='\n<a class="remove-xmpp-contact icon-remove" title="'+
((__t=(desc_remove))==null?'':__t)+
'" href="#"></a>\n';
}
return __p;
}; });


define('tpl!pending_contacts', [],function () { return function(obj){
var __t,__p='',__j=Array.prototype.join,print=function(){__p+=__j.call(arguments,'');};
with(obj||{}){
__p+='<dt class="roster-group" id="pending-xmpp-contacts"><a href="#" class="group-toggle icon-'+
((__t=(toggle_state))==null?'':__t)+
'" title="'+
((__t=(desc_group_toggle))==null?'':__t)+
'">'+
((__t=(label_pending_contacts))==null?'':__t)+
'</a></dt>\n';
}
return __p;
}; });


define('tpl!register_panel', [],function () { return function(obj){
var __t,__p='',__j=Array.prototype.join,print=function(){__p+=__j.call(arguments,'');};
with(obj||{}){
__p+='<form id="converse-register" class="pure-form converse-form">\n    <span class="reg-feedback"></span>\n    <label>'+
((__t=(label_domain))==null?'':__t)+
'</label>\n    <input type="text" name="domain" placeholder="'+
((__t=(domain_placeholder))==null?'':__t)+
'">\n    <p class="form-help">'+
((__t=(help_providers))==null?'':__t)+
' <a href="'+
((__t=(href_providers))==null?'':__t)+
'" class="url" target="_blank" rel="noopener">'+
((__t=(help_providers_link))==null?'':__t)+
'</a>.</p>\n    <input class="pure-button button-primary" type="submit" value="'+
((__t=(label_register))==null?'':__t)+
'">\n</form>\n';
}
return __p;
}; });


define('tpl!register_tab', [],function () { return function(obj){
var __t,__p='',__j=Array.prototype.join,print=function(){__p+=__j.call(arguments,'');};
with(obj||{}){
__p+='<li><a class="s" href="#register">'+
((__t=(label_register))==null?'':__t)+
'</a></li>\n';
}
return __p;
}; });


define('tpl!registration_form', [],function () { return function(obj){
var __t,__p='',__j=Array.prototype.join,print=function(){__p+=__j.call(arguments,'');};
with(obj||{}){
__p+='<p class="provider-title">'+
((__t=(domain))==null?'':__t)+
'</p>\n<a href=\'https://xmpp.net/result.php?domain='+
((__t=(domain))==null?'':__t)+
'&amp;type=client\'>\n    <img class="provider-score" src=\'https://xmpp.net/badge.php?domain='+
((__t=(domain))==null?'':__t)+
'\' alt=\'xmpp.net score\' />\n</a>\n<p class="title">'+
((__t=(title))==null?'':__t)+
'</p>\n<p class="instructions">'+
((__t=(instructions))==null?'':__t)+
'</p>\n';
}
return __p;
}; });


define('tpl!registration_request', [],function () { return function(obj){
var __t,__p='',__j=Array.prototype.join,print=function(){__p+=__j.call(arguments,'');};
with(obj||{}){
__p+='<span class="spinner login-submit"/>\n<p class="info">'+
((__t=(info_message))==null?'':__t)+
'</p>\n<button class="pure-button button-cancel hor_centered">'+
((__t=(cancel))==null?'':__t)+
'</button>\n';
}
return __p;
}; });


define('tpl!requesting_contact', [],function () { return function(obj){
var __t,__p='',__j=Array.prototype.join,print=function(){__p+=__j.call(arguments,'');};
with(obj||{}){
__p+='';
 if (allow_chat_pending_contacts)  { 
__p+='\n<a class="open-chat"href="#">\n';
 } 
__p+='\n<span class="req-contact-name" title="Name: '+
((__t=(fullname))==null?'':__t)+
'\nJID: '+
((__t=(jid))==null?'':__t)+
'">'+
((__t=(fullname))==null?'':__t)+
'</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" title="'+
((__t=(desc_accept))==null?'':__t)+
'" href="#"></a>\n    <a class="decline-xmpp-request icon-close" title="'+
((__t=(desc_decline))==null?'':__t)+
'" href="#"></a>\n</span>\n';
}
return __p;
}; });


define('tpl!requesting_contacts', [],function () { return function(obj){
var __t,__p='',__j=Array.prototype.join,print=function(){__p+=__j.call(arguments,'');};
with(obj||{}){
__p+='<dt class="roster-group" id="xmpp-contact-requests"><a href="#" class="group-toggle icon-'+
((__t=(toggle_state))==null?'':__t)+
'" title="'+
((__t=(desc_group_toggle))==null?'':__t)+
'">'+
((__t=(label_contact_requests))==null?'':__t)+
'</a></dt>\n';
}
return __p;
}; });


define('tpl!room_description', [],function () { return function(obj){
var __t,__p='',__j=Array.prototype.join,print=function(){__p+=__j.call(arguments,'');};
with(obj||{}){
__p+='<!-- FIXME: check markup in mockup -->\n<div class="room-info">\n<p class="room-info"><strong>'+
((__t=(label_desc))==null?'':__t)+
'</strong> '+
((__t=(desc))==null?'':__t)+
'</p>\n<p class="room-info"><strong>'+
((__t=(label_occ))==null?'':__t)+
'</strong> '+
((__t=(occ))==null?'':__t)+
'</p>\n<p class="room-info"><strong>'+
((__t=(label_features))==null?'':__t)+
'</strong>\n    <ul>\n        ';
 if (passwordprotected) { 
__p+='\n        <li class="room-info locked">'+
((__t=(label_requires_auth))==null?'':__t)+
'</li>\n        ';
 } 
__p+='\n        ';
 if (hidden) { 
__p+='\n        <li class="room-info">'+
((__t=(label_hidden))==null?'':__t)+
'</li>\n        ';
 } 
__p+='\n        ';
 if (membersonly) { 
__p+='\n        <li class="room-info">'+
((__t=(label_requires_invite))==null?'':__t)+
'</li>\n        ';
 } 
__p+='\n        ';
 if (moderated) { 
__p+='\n        <li class="room-info">'+
((__t=(label_moderated))==null?'':__t)+
'</li>\n        ';
 } 
__p+='\n        ';
 if (nonanonymous) { 
__p+='\n        <li class="room-info">'+
((__t=(label_non_anon))==null?'':__t)+
'</li>\n        ';
 } 
__p+='\n        ';
 if (open) { 
__p+='\n        <li class="room-info">'+
((__t=(label_open_room))==null?'':__t)+
'</li>\n        ';
 } 
__p+='\n        ';
 if (persistent) { 
__p+='\n        <li class="room-info">'+
((__t=(label_permanent_room))==null?'':__t)+
'</li>\n        ';
 } 
__p+='\n        ';
 if (publicroom) { 
__p+='\n        <li class="room-info">'+
((__t=(label_public))==null?'':__t)+
'</li>\n        ';
 } 
__p+='\n        ';
 if (semianonymous) { 
__p+='\n        <li class="room-info">'+
((__t=(label_semi_anon))==null?'':__t)+
'</li>\n        ';
 } 
__p+='\n        ';
 if (temporary) { 
__p+='\n        <li class="room-info">'+
((__t=(label_temp_room))==null?'':__t)+
'</li>\n        ';
 } 
__p+='\n        ';
 if (unmoderated) { 
__p+='\n        <li class="room-info">'+
((__t=(label_unmoderated))==null?'':__t)+
'</li>\n        ';
 } 
__p+='\n    </ul>\n</p>\n</div>\n';
}
return __p;
}; });


define('tpl!room_item', [],function () { return function(obj){
var __t,__p='',__j=Array.prototype.join,print=function(){__p+=__j.call(arguments,'');};
with(obj||{}){
__p+='<dd class="available-chatroom">\n<a class="open-room" data-room-jid="'+
((__t=(jid))==null?'':__t)+
'"\n   title="'+
((__t=(open_title))==null?'':__t)+
'" href="#">'+
((__t=(_.escape(name)))==null?'':__t)+
'</a>\n<a class="room-info icon-room-info" data-room-jid="'+
((__t=(jid))==null?'':__t)+
'"\n   title="'+
((__t=(info_title))==null?'':__t)+
'" href="#">&nbsp;</a>\n</dd>\n';
}
return __p;
}; });


define('tpl!room_panel', [],function () { return function(obj){
var __t,__p='',__j=Array.prototype.join,print=function(){__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"></dl>\n';
}
return __p;
}; });


define('tpl!roster', [],function () { return function(obj){
var __t,__p='',__j=Array.prototype.join,print=function(){__p+=__j.call(arguments,'');};
with(obj||{}){
__p+='<form class="pure-form roster-filter-group 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 === 'chatty') { 
__p+=' selected="selected" ';
 } 
__p+='\n            value="chatty">'+
((__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', [],function () { return function(obj){
var __t,__p='',__j=Array.prototype.join,print=function(){__p+=__j.call(arguments,'');};
with(obj||{}){
__p+='<a class="open-chat" title="'+
((__t=(title_fullname))==null?'':__t)+
': '+
((__t=(fullname))==null?'':__t)+
'\nJID: '+
((__t=(jid))==null?'':__t)+
'\n'+
((__t=(desc_chat))==null?'':__t)+
'" href="#"><span class="icon-'+
((__t=(chat_status))==null?'':__t)+
'" title="'+
((__t=(desc_status))==null?'':__t)+
'"></span>'+
((__t=(fullname))==null?'':__t)+
'</a>\n';
 if (allow_contact_removal) { 
__p+='\n<a class="remove-xmpp-contact icon-remove" title="'+
((__t=(desc_remove))==null?'':__t)+
'" href="#"></a>\n';
 } 
__p+='\n';
}
return __p;
}; });


define('tpl!search_contact', [],function () { return function(obj){
var __t,__p='',__j=Array.prototype.join,print=function(){__p+=__j.call(arguments,'');};
with(obj||{}){
__p+='<li>\n    <form class="search-xmpp-contact">\n        <input type="text"\n            name="identifier"\n            class="username"\n            placeholder="'+
((__t=(label_contact_name))==null?'':__t)+
'"/>\n        <button type="submit">'+
((__t=(label_search))==null?'':__t)+
'</button>\n    </form>\n</li>\n';
}
return __p;
}; });


define('tpl!select_option', [],function () { return function(obj){
var __t,__p='',__j=Array.prototype.join,print=function(){__p+=__j.call(arguments,'');};
with(obj||{}){
__p+='<option value="'+
((__t=(value))==null?'':__t)+
'" ';
 if (selected) { 
__p+=' selected="selected" ';
 } 
__p+=' >'+
((__t=(label))==null?'':__t)+
'</option>\n';
}
return __p;
}; });


define('tpl!status_option', [],function () { return function(obj){
var __t,__p='',__j=Array.prototype.join,print=function(){__p+=__j.call(arguments,'');};
with(obj||{}){
__p+='<li>\n    <a href="#" class="'+
((__t=( value ))==null?'':__t)+
'" data-value="'+
((__t=( value ))==null?'':__t)+
'">\n        <span class="icon-'+
((__t=( value ))==null?'':__t)+
'"></span>\n        '+
((__t=( text ))==null?'':__t)+
'\n    </a>\n</li>\n';
}
return __p;
}; });


define('tpl!toggle_chats', [],function () { return function(obj){
var __t,__p='',__j=Array.prototype.join,print=function(){__p+=__j.call(arguments,'');};
with(obj||{}){
__p+=''+
((__t=(Minimized))==null?'':__t)+
' <span id="minimized-count">('+
((__t=(num_minimized))==null?'':__t)+
')</span>\n<span class="unread-message-count"\n    ';
 if (!num_unread) { 
__p+=' style="display: none" ';
 } 
__p+='\n    href="#">'+
((__t=(num_unread))==null?'':__t)+
'</span>\n';
}
return __p;
}; });


define('tpl!toolbar', [],function () { return function(obj){
var __t,__p='',__j=Array.prototype.join,print=function(){__p+=__j.call(arguments,'');};
with(obj||{}){
__p+='';
 if (show_emoticons)  { 
__p+='\n    <li class="toggle-smiley icon-happy" title="'+
((__t=(label_insert_smiley))==null?'':__t)+
'">\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="'+
((__t=(label_start_call))==null?'':__t)+
'"></a></li>\n';
 } 
__p+='\n';
 if (show_occupants_toggle)  { 
__p+='\n<li class="toggle-occupants"><a class="icon-hide-users" title="'+
((__t=(label_hide_occupants))==null?'':__t)+
'"></a></li>\n';
 } 
__p+='\n';
 if (show_clear_button)  { 
__p+='\n<li class="toggle-clear"><a class="icon-remove" title="'+
((__t=(label_clear))==null?'':__t)+
'"></a></li>\n';
 } 
__p+='\n';
}
return __p;
}; });


define('tpl!toolbar_otr', [],function () { return function(obj){
var __t,__p='',__j=Array.prototype.join,print=function(){__p+=__j.call(arguments,'');};
with(obj||{}){
__p+='';
 if (allow_otr)  { 
__p+='\n    <li class="toggle-otr '+
((__t=(otr_status_class))==null?'':__t)+
'" title="'+
((__t=(otr_tooltip))==null?'':__t)+
'">\n        <span class="chat-toolbar-text">'+
((__t=(otr_translated_status))==null?'':__t)+
'</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="#">'+
((__t=(label_start_encrypted_conversation))==null?'':__t)+
'</a></li>\n            ';
 } 
__p+='\n            ';
 if (otr_status != UNENCRYPTED) { 
__p+='\n               <li><a class="start-otr" href="#">'+
((__t=(label_refresh_encrypted_conversation))==null?'':__t)+
'</a></li>\n               <li><a class="end-otr" href="#">'+
((__t=(label_end_encrypted_conversation))==null?'':__t)+
'</a></li>\n               <li><a class="auth-otr" data-scheme="smp" href="#">'+
((__t=(label_verify_with_smp))==null?'':__t)+
'</a></li>\n            ';
 } 
__p+='\n            ';
 if (otr_status == UNVERIFIED) { 
__p+='\n               <li><a class="auth-otr" data-scheme="fingerprint" href="#">'+
((__t=(label_verify_with_fingerprints))==null?'':__t)+
'</a></li>\n            ';
 } 
__p+='\n            <li><a href="http://www.cypherpunks.ca/otr/help/3.2.0/levels.php" target="_blank" rel="noopener">'+
((__t=(label_whats_this))==null?'':__t)+
'</a></li>\n        </ul>\n    </li>\n';
 } 
__p+='\n';
}
return __p;
}; });


define('tpl!trimmed_chat', [],function () { return function(obj){
var __t,__p='',__j=Array.prototype.join,print=function(){__p+=__j.call(arguments,'');};
with(obj||{}){
__p+='<a class="chatbox-btn close-chatbox-button icon-close"></a>\n<a class="chat-head-message-count" \n    ';
 if (!num_unread) { 
__p+=' style="display: none" ';
 } 
__p+='\n    href="#">'+
((__t=(num_unread))==null?'':__t)+
'</a>\n<a href="#" class="restore-chat" title="'+
((__t=(tooltip))==null?'':__t)+
'">\n    '+
((__t=( title ))==null?'':__t)+
'\n</a>\n';
}
return __p;
}; });


define('tpl!vcard', [],function () { return function(obj){
var __t,__p='',__j=Array.prototype.join,print=function(){__p+=__j.call(arguments,'');};
with(obj||{}){
__p+='<form class="pure-form converse-form vcard-info">\n    <fieldset>\n        <legend>The VCard info gets rendered here</legend>\n        <label>Full name:</label>\n        '+
((__t=(fullname))==null?'':__t)+
'\n        <label>URL:</label>\n        '+
((__t=(url))==null?'':__t)+
'\n    </fieldset>\n    <fieldset>\n        <input type="button" class="pure-button button-cancel" value="'+
((__t=(label_return))==null?'':__t)+
'"/>\n    </fieldset>\n</form>\n';
}
return __p;
}; });


define('tpl!chatbox_minimize', [],function () { return function(obj){
var __t,__p='',__j=Array.prototype.join,print=function(){__p+=__j.call(arguments,'');};
with(obj||{}){
__p+='<a class="chatbox-btn toggle-chatbox-button icon-minus" title="'+
((__t=(info_minimize))==null?'':__t)+
'"></a>\n';
}
return __p;
}; });

define("converse-templates", [
    "tpl!action",
    "tpl!add_contact_dropdown",
    "tpl!add_contact_form",
    "tpl!change_status_message",
    "tpl!chat_status",
    "tpl!chatarea",
    "tpl!chatbox",
    "tpl!chatroom",
    "tpl!chatroom_form",
    "tpl!chatroom_password_form",
    "tpl!chatroom_nickname_form",
    "tpl!chatroom_sidebar",
    "tpl!chatrooms_tab",
    "tpl!chats_panel",
    "tpl!choose_status",
    "tpl!contacts_panel",
    "tpl!contacts_tab",
    "tpl!controlbox",
    "tpl!controlbox_toggle",
    "tpl!field",
    "tpl!form_captcha",
    "tpl!form_checkbox",
    "tpl!form_input",
    "tpl!form_select",
    "tpl!form_textarea",
    "tpl!form_username",
    "tpl!group_header",
    "tpl!info",
    "tpl!login_panel",
    "tpl!login_tab",
    "tpl!message",
    "tpl!new_day",
    "tpl!occupant",
    "tpl!pending_contact",
    "tpl!pending_contacts",
    "tpl!register_panel",
    "tpl!register_tab",
    "tpl!registration_form",
    "tpl!registration_request",
    "tpl!requesting_contact",
    "tpl!requesting_contacts",
    "tpl!room_description",
    "tpl!room_item",
    "tpl!room_panel",
    "tpl!roster",
    "tpl!roster_item",
    "tpl!search_contact",
    "tpl!select_option",
    "tpl!status_option",
    "tpl!toggle_chats",
    "tpl!toolbar",
    "tpl!toolbar_otr",
    "tpl!trimmed_chat",
    "tpl!vcard",

    // Can be removed together with converse-minimize.js
    // if minimization/trimming features not needed (for example for mobile
    // apps).
    "tpl!chatbox_minimize",
], function () {
    return {
        action:                 arguments[0],
        add_contact_dropdown:   arguments[1],
        add_contact_form:       arguments[2],
        change_status_message:  arguments[3],
        chat_status:            arguments[4],
        chatarea:               arguments[5],
        chatbox:                arguments[6],
        chatroom:               arguments[7],
        chatroom_form:          arguments[8],
        chatroom_password_form: arguments[9],
        chatroom_nickname_form: arguments[10],
        chatroom_sidebar:       arguments[11],
        chatrooms_tab:          arguments[12],
        chats_panel:            arguments[13],
        choose_status:          arguments[14],
        contacts_panel:         arguments[15],
        contacts_tab:           arguments[16],
        controlbox:             arguments[17],
        controlbox_toggle:      arguments[18],
        field:                  arguments[19],
        form_captcha:           arguments[20],
        form_checkbox:          arguments[21],
        form_input:             arguments[22],
        form_select:            arguments[23],
        form_textarea:          arguments[24],
        form_username:          arguments[25],
        group_header:           arguments[26],
        info:                   arguments[27],
        login_panel:            arguments[28],
        login_tab:              arguments[29],
        message:                arguments[30],
        new_day:                arguments[31],
        occupant:               arguments[32],
        pending_contact:        arguments[33],
        pending_contacts:       arguments[34],
        register_panel:         arguments[35],
        register_tab:           arguments[36],
        registration_form:      arguments[37],
        registration_request:   arguments[38],
        requesting_contact:     arguments[39],
        requesting_contacts:    arguments[40],
        room_description:       arguments[41],
        room_item:              arguments[42],
        room_panel:             arguments[43],
        roster:                 arguments[44],
        roster_item:            arguments[45],
        search_contact:         arguments[46],
        select_option:          arguments[47],
        status_option:          arguments[48],
        toggle_chats:           arguments[49],
        toolbar:                arguments[50],
        toolbar_otr:            arguments[51],
        trimmed_chat:           arguments[52],
        vcard:                  arguments[53],
        chatbox_minimize:       arguments[54]
    };
});

/*global escape, locales, Jed */
(function (root, factory) {
    define('utils',[
        "jquery",
        "jquery.browser",
        "underscore",
        "converse-templates"
    ], factory);
}(this, function ($, dummy, _, templates) {
    "use strict";

    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 isImage = function (url) {
        var deferred = new $.Deferred();
        $("<img>", {
            src: url,
            error: deferred.reject,
            load: deferred.resolve
        });
        return deferred.promise();
    };

    $.expr[':'].emptyVal = function(obj){
        return obj.value === '';
    };

    $.fn.hasScrollBar = function() {
        if (!$.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);
                _.each(list, function (url) {
                    isImage(url).then(function () {
                        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>';
                        event.target.className = 'chat-image';
                        x = x.replace(new_url, event.target.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 (typeof Jed === "undefined") {
                return str;
            }
            // FIXME: this can be refactored to take the i18n obj as a
            // parameter.
            // Translation factory
            if (typeof this.i18n === "undefined") {
                this.i18n = locales.en;
            }
            if (typeof this.i18n === "string") {
                this.i18n = $.parseJSON(this.i18n);
            }
            if (typeof this.jed === "undefined") {
                this.jed = new Jed(this.i18n);
            }
            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;
                }
            }
        },

        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';
        },

        isOTRMessage: function (message) {
            var $body = $(message).children('body'),
                text = ($body.length > 0 ? $body.text() : undefined);
            return text && !!text.match(/^\?OTR/);
        },

        isHeadlineMessage: function (message) {
            var $message = $(message),
                from_jid = $message.attr('from');
            if ($message.attr('type') === 'headline' ||
                // 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.
                (   $message.attr('type') !== 'error' &&
                    typeof from_jid !== 'undefined' &&
                    from_jid.indexOf('@') === -1
                )) {
                return true;
            }
            return false;
        },

        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) {
                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 $(templates.field({
                name: $input.attr('name'),
                value: value
            }))[0];
        },

        contains: function (attr, query) {
            return function (item) {
                if (typeof attr === 'object') {
                    var value = false;
                    _.each(attr, function (a) {
                        value = value || item.get(a).toLowerCase().indexOf(query.toLowerCase()) !== -1;
                    });
                    return value;
                } else if (typeof attr === 'string') {
                    return item.get(attr).toLowerCase().indexOf(query.toLowerCase()) !== -1;
                } 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(templates.select_option({
                        value: value,
                        label: $($options[j]).attr('label'),
                        selected: (values.indexOf(value) >= 0),
                        required: $field.find('required').length
                    }));
                }
                return templates.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 templates.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 templates.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 templates.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 templates.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'),
                            $.proxy(function (uri) {
                                return templates.form_captcha({
                                    label: this.$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.contains.not = function (attr, query) {
        return function (item) {
            return !(utils.contains(attr, query)(item));
        };
    };
    return utils;
}));

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;
  };
}

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(){});

/*
 *     ____  __                        __    __         _
 *    / __ \/ /_  __ ___   ___  ____ _/ /_  / /__      (_)____
 *   / /_/ / / / / / __ \/ __ \/ __/ / __ \/ / _ \    / / ___/
 *  / ____/ / /_/ / /_/ / /_/ / /_/ / /_/ / /  __/   / (__  )
 * /_/   /_/\__,_/\__, /\__, /\__/_/_.___/_/\___(_)_/ /____/
 *               /____//____/                    /___/
 *
 */
(function (root, factory) {
    define("converse-pluggable", ["jquery", "underscore"], factory);
}(this, function ($, _) {
    "use strict";

    function Pluggable (plugged) {
        this.plugged = plugged;
        this.plugged._super = {};
        this.plugins = {};
        this.initialized_plugins = [];
    }
    _.extend(Pluggable.prototype, {
        wrappedOverride: function (key, value, super_method) {
            /* 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.
             */
            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, _.rest(arguments, 3));
        },

        _overrideAttribute: function (key, plugin) {
            /* 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
             */
            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 (obj, attributes) {
            if (!obj.prototype._super) {
                // FIXME: make generic
                obj.prototype._super = {'converse': this.plugged };
            }
            _.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(
                        this.wrappedOverride, key, value, obj.prototype[key]
                    );
                    obj.prototype[key] = wrapped_function;
                } else {
                    obj.prototype[key] = value;
                }
            }.bind(this));
        },

        loadOptionalDependencies: function (plugin) {
            _.each(plugin.optional_dependencies, function (name) {
                var dep = this.plugins[name];
                if (dep) {
                    if (_.contains(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");
                }
            }.bind(this));
        },

        throwUndefinedDependencyError: function (msg) {
            if (this.plugged.strict_plugin_dependencies) {
                throw msg;
            } else {
                console.log(msg);
                return;
            }
        },

        applyOverrides: function (plugin) {
            _.each(Object.keys(plugin.overrides || {}), function (key) {
                /* We automatically override all methods and Backbone views and
                 * models that are in the "overrides" namespace.
                 */
                var override = plugin.overrides[key];
                if (typeof override === "object") {
                    if (typeof this.plugged[key] === 'undefined') {
                        this.throwUndefinedDependencyError("Error: Plugin \""+plugin.__name__+"\" tried to override "+key+" but it's not found.");
                    } else {
                        this._extendObject(this.plugged[key], override);
                    }
                } else {
                    this._overrideAttribute(key, plugin);
                }
            }.bind(this));
        },

        initializePlugin: function (plugin) {
            if (_.contains(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__);
        },

        initializePlugins: function (properties) {
            /* The properties variable is an object of attributes and methods
             * which will be attached to the plugins.
             */
            if (!_.size(this.plugins)) {
                return;
            }
            this.properties = properties;
            _.each(_.values(this.plugins), this.initializePlugin.bind(this));
        }
    });
    return {
        'enable': function (object) {
            /* Call this method to make an object pluggable */
            return _.extend(object, {'pluggable': new Pluggable(object)});
        }
    };
}));

/*
  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.js 1.1.2

//     (c) 2010-2014 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(root, factory) {

  // 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');
    factory(root, exports, _);

  // Finally, as a browser global.
  } else {
    root.Backbone = factory(root, {}, root._, (root.jQuery || root.Zepto || root.ender || root.$));
  }

}(this, 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 local references to array methods we'll want to use later.
  var array = [];
  var push = array.push;
  var slice = array.slice;
  var splice = array.splice;

  // Current version of the library. Keep in sync with `package.json`.
  Backbone.VERSION = '1.1.2';

  // 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 ... 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;

  // Backbone.Events
  // ---------------

  // A module that can be mixed in to *any object* in order to provide it with
  // custom events. You may bind with `on` or remove with `off` callback
  // functions to an event; `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 = {

    // Bind an event to a `callback` function. Passing `"all"` will bind
    // the callback to all events fired.
    on: function(name, callback, context) {
      if (!eventsApi(this, 'on', name, [callback, context]) || !callback) return this;
      this._events || (this._events = {});
      var events = this._events[name] || (this._events[name] = []);
      events.push({callback: callback, context: context, ctx: context || this});
      return this;
    },

    // Bind an event to only be triggered a single time. After the first time
    // the callback is invoked, it will be removed.
    once: function(name, callback, context) {
      if (!eventsApi(this, 'once', name, [callback, context]) || !callback) return this;
      var self = this;
      var once = _.once(function() {
        self.off(name, once);
        callback.apply(this, arguments);
      });
      once._callback = callback;
      return this.on(name, once, context);
    },

    // 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.
    off: function(name, callback, context) {
      var retain, ev, events, names, i, l, j, k;
      if (!this._events || !eventsApi(this, 'off', name, [callback, context])) return this;
      if (!name && !callback && !context) {
        this._events = void 0;
        return this;
      }
      names = name ? [name] : _.keys(this._events);
      for (i = 0, l = names.length; i < l; i++) {
        name = names[i];
        if (events = this._events[name]) {
          this._events[name] = retain = [];
          if (callback || context) {
            for (j = 0, k = events.length; j < k; j++) {
              ev = events[j];
              if ((callback && callback !== ev.callback && callback !== ev.callback._callback) ||
                  (context && context !== ev.context)) {
                retain.push(ev);
              }
            }
          }
          if (!retain.length) delete this._events[name];
        }
      }

      return this;
    },

    // 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).
    trigger: function(name) {
      if (!this._events) return this;
      var args = slice.call(arguments, 1);
      if (!eventsApi(this, 'trigger', name, args)) return this;
      var events = this._events[name];
      var allEvents = this._events.all;
      if (events) triggerEvents(events, args);
      if (allEvents) triggerEvents(allEvents, arguments);
      return this;
    },

    // Tell this object to stop listening to either specific events ... or
    // to every object it's currently listening to.
    stopListening: function(obj, name, callback) {
      var listeningTo = this._listeningTo;
      if (!listeningTo) return this;
      var remove = !name && !callback;
      if (!callback && typeof name === 'object') callback = this;
      if (obj) (listeningTo = {})[obj._listenId] = obj;
      for (var id in listeningTo) {
        obj = listeningTo[id];
        obj.off(name, callback, this);
        if (remove || _.isEmpty(obj._events)) delete this._listeningTo[id];
      }
      return this;
    }

  };

  // Regular expression used to split event strings.
  var eventSplitter = /\s+/;

  // Implement fancy features of the Events API such as multiple event
  // names `"change blur"` and jQuery-style event maps `{change: action}`
  // in terms of the existing API.
  var eventsApi = function(obj, action, name, rest) {
    if (!name) return true;

    // Handle event maps.
    if (typeof name === 'object') {
      for (var key in name) {
        obj[action].apply(obj, [key, name[key]].concat(rest));
      }
      return false;
    }

    // Handle space separated event names.
    if (eventSplitter.test(name)) {
      var names = name.split(eventSplitter);
      for (var i = 0, l = names.length; i < l; i++) {
        obj[action].apply(obj, [names[i]].concat(rest));
      }
      return false;
    }

    return true;
  };

  // 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;
    }
  };

  var listenMethods = {listenTo: 'on', listenToOnce: 'once'};

  // Inversion-of-control versions of `on` and `once`. Tell *this* object to
  // listen to an event in another object ... keeping track of what it's
  // listening to.
  _.each(listenMethods, function(implementation, method) {
    Events[method] = function(obj, name, callback) {
      var listeningTo = this._listeningTo || (this._listeningTo = {});
      var id = obj._listenId || (obj._listenId = _.uniqueId('l'));
      listeningTo[id] = obj;
      if (!callback && typeof name === 'object') callback = this;
      obj[implementation](name, callback, this);
      return this;
    };
  });

  // 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('c');
    this.attributes = {};
    if (options.collection) this.collection = options.collection;
    if (options.parse) attrs = this.parse(attrs, options) || {};
    attrs = _.defaults({}, attrs, _.result(this, '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',

    // 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;
    },

    // 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) {
      var attr, attrs, unset, changes, silent, changing, prev, current;
      if (key == null) return this;

      // Handle both `"key", value` and `{key: value}` -style arguments.
      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.
      unset           = options.unset;
      silent          = options.silent;
      changes         = [];
      changing        = this._changing;
      this._changing  = true;

      if (!changing) {
        this._previousAttributes = _.clone(this.attributes);
        this.changed = {};
      }
      current = this.attributes, prev = this._previousAttributes;

      // Check for changes of `id`.
      if (this.idAttribute in attrs) this.id = attrs[this.idAttribute];

      // For each `set` attribute, update or delete the current value.
      for (attr in attrs) {
        val = attrs[attr];
        if (!_.isEqual(current[attr], val)) changes.push(attr);
        if (!_.isEqual(prev[attr], val)) {
          this.changed[attr] = val;
        } else {
          delete this.changed[attr];
        }
        unset ? delete current[attr] : current[attr] = val;
      }

      // Trigger all relevant attribute changes.
      if (!silent) {
        if (changes.length) this._pending = options;
        for (var i = 0, l = changes.length; i < l; 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 val, changed = false;
      var old = this._changing ? this._previousAttributes : this.attributes;
      for (var attr in diff) {
        if (_.isEqual(old[attr], (val = diff[attr]))) continue;
        (changed || (changed = {}))[attr] = val;
      }
      return changed;
    },

    // 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. If the server's representation of the
    // model differs from its current attributes, they will be overridden,
    // triggering a `"change"` event.
    fetch: function(options) {
      options = options ? _.clone(options) : {};
      if (options.parse === void 0) options.parse = true;
      var model = this;
      var success = options.success;
      options.success = function(resp) {
        if (!model.set(model.parse(resp, options), options)) return false;
        if (success) success(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) {
      var attrs, method, xhr, attributes = this.attributes;

      // Handle both `"key", value` and `{key: value}` -style arguments.
      if (key == null || typeof key === 'object') {
        attrs = key;
        options = val;
      } else {
        (attrs = {})[key] = val;
      }

      options = _.extend({validate: true}, options);

      // 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 && !options.wait) {
        if (!this.set(attrs, options)) return false;
      } else {
        if (!this._validate(attrs, options)) return false;
      }

      // Set temporary attributes if `{wait: true}`.
      if (attrs && options.wait) {
        this.attributes = _.extend({}, attributes, attrs);
      }

      // After a successful server-side save, the client is (optionally)
      // updated with the server-side state.
      if (options.parse === void 0) options.parse = true;
      var model = this;
      var success = options.success;
      options.success = function(resp) {
        // Ensure attributes are restored during synchronous saves.
        model.attributes = attributes;
        var serverAttrs = model.parse(resp, options);
        if (options.wait) serverAttrs = _.extend(attrs || {}, serverAttrs);
        if (_.isObject(serverAttrs) && !model.set(serverAttrs, options)) {
          return false;
        }
        if (success) success(model, resp, options);
        model.trigger('sync', model, resp, options);
      };
      wrapError(this, options);

      method = this.isNew() ? 'create' : (options.patch ? 'patch' : 'update');
      if (method === 'patch') options.attrs = attrs;
      xhr = this.sync(method, this, options);

      // Restore attributes.
      if (attrs && options.wait) 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 destroy = function() {
        model.trigger('destroy', model, model.collection, options);
      };

      options.success = function(resp) {
        if (options.wait || model.isNew()) destroy();
        if (success) success(model, resp, options);
        if (!model.isNew()) model.trigger('sync', model, resp, options);
      };

      if (this.isNew()) {
        options.success();
        return false;
      }
      wrapError(this, options);

      var xhr = this.sync('delete', this, options);
      if (!options.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;
      return base.replace(/([^\/])$/, '$1/') + encodeURIComponent(this.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.
  var modelMethods = ['keys', 'values', 'pairs', 'invert', 'pick', 'omit'];

  // Mix in each Underscore method as a proxy to `Model#attributes`.
  _.each(modelMethods, function(method) {
    Model.prototype[method] = function() {
      var args = slice.call(arguments);
      args.unshift(this.attributes);
      return _[method].apply(_, args);
    };
  });

  // Backbone.Collection
  // -------------------

  // If models tend to represent a single row of data, a Backbone Collection is
  // more analagous 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};

  // 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.
    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) {
      var singular = !_.isArray(models);
      models = singular ? [models] : _.clone(models);
      options || (options = {});
      var i, l, index, model;
      for (i = 0, l = models.length; i < l; i++) {
        model = models[i] = this.get(models[i]);
        if (!model) continue;
        delete this._byId[model.id];
        delete this._byId[model.cid];
        index = this.indexOf(model);
        this.models.splice(index, 1);
        this.length--;
        if (!options.silent) {
          options.index = index;
          model.trigger('remove', model, this, options);
        }
        this._removeReference(model, options);
      }
      return singular ? models[0] : models;
    },

    // 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) {
      options = _.defaults({}, options, setOptions);
      if (options.parse) models = this.parse(models, options);
      var singular = !_.isArray(models);
      models = singular ? (models ? [models] : []) : _.clone(models);
      var i, l, id, model, attrs, existing, sort;
      var at = options.at;
      var targetModel = this.model;
      var sortable = this.comparator && (at == null) && options.sort !== false;
      var sortAttr = _.isString(this.comparator) ? this.comparator : null;
      var toAdd = [], toRemove = [], modelMap = {};
      var add = options.add, merge = options.merge, remove = options.remove;
      var order = !sortable && add && remove ? [] : false;

      // Turn bare objects into model references, and prevent invalid models
      // from being added.
      for (i = 0, l = models.length; i < l; i++) {
        attrs = models[i] || {};
        if (attrs instanceof Model) {
          id = model = attrs;
        } else {
          id = attrs[targetModel.prototype.idAttribute || 'id'];
        }

        // If a duplicate is found, prevent it from being added and
        // optionally merge it into the existing model.
        if (existing = this.get(id)) {
          if (remove) modelMap[existing.cid] = true;
          if (merge) {
            attrs = attrs === model ? model.attributes : attrs;
            if (options.parse) attrs = existing.parse(attrs, options);
            existing.set(attrs, options);
            if (sortable && !sort && existing.hasChanged(sortAttr)) sort = true;
          }
          models[i] = existing;

        // If this is a new, valid model, push it to the `toAdd` list.
        } else if (add) {
          model = models[i] = this._prepareModel(attrs, options);
          if (!model) continue;
          toAdd.push(model);
          this._addReference(model, options);
        }

        // Do not add multiple models with the same `id`.
        model = existing || model;
        if (order && (model.isNew() || !modelMap[model.id])) order.push(model);
        modelMap[model.id] = true;
      }

      // Remove nonexistent models if appropriate.
      if (remove) {
        for (i = 0, l = this.length; i < l; ++i) {
          if (!modelMap[(model = this.models[i]).cid]) toRemove.push(model);
        }
        if (toRemove.length) this.remove(toRemove, options);
      }

      // See if sorting is needed, update `length` and splice in new models.
      if (toAdd.length || (order && order.length)) {
        if (sortable) sort = true;
        this.length += toAdd.length;
        if (at != null) {
          for (i = 0, l = toAdd.length; i < l; i++) {
            this.models.splice(at + i, 0, toAdd[i]);
          }
        } else {
          if (order) this.models.length = 0;
          var orderedModels = order || toAdd;
          for (i = 0, l = orderedModels.length; i < l; i++) {
            this.models.push(orderedModels[i]);
          }
        }
      }

      // Silently sort the collection if appropriate.
      if (sort) this.sort({silent: true});

      // Unless silenced, it's time to fire all appropriate add/sort events.
      if (!options.silent) {
        for (i = 0, l = toAdd.length; i < l; i++) {
          (model = toAdd[i]).trigger('add', model, this, options);
        }
        if (sort || (order && order.length)) this.trigger('sort', 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 = {});
      for (var i = 0, l = this.models.length; i < l; 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);
      this.remove(model, options);
      return model;
    },

    // 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);
      this.remove(model, options);
      return model;
    },

    // 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.
    get: function(obj) {
      if (obj == null) return void 0;
      return this._byId[obj] || this._byId[obj.id] || this._byId[obj.cid];
    },

    // Get the model at the given index.
    at: function(index) {
      return this.models[index];
    },

    // Return models with matching attributes. Useful for simple cases of
    // `filter`.
    where: function(attrs, first) {
      if (_.isEmpty(attrs)) return first ? void 0 : [];
      return this[first ? 'find' : 'filter'](function(model) {
        for (var key in attrs) {
          if (attrs[key] !== model.get(key)) return false;
        }
        return true;
      });
    },

    // 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) {
      if (!this.comparator) throw new Error('Cannot sort a set without a comparator');
      options || (options = {});

      // Run sort based on type of `comparator`.
      if (_.isString(this.comparator) || this.comparator.length === 1) {
        this.models = this.sortBy(this.comparator, this);
      } else {
        this.models.sort(_.bind(this.comparator, this));
      }

      if (!options.silent) this.trigger('sort', this, options);
      return this;
    },

    // Pluck an attribute from each model in the collection.
    pluck: function(attr) {
      return _.invoke(this.models, 'get', 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 = options ? _.clone(options) : {};
      if (options.parse === void 0) options.parse = true;
      var success = options.success;
      var collection = this;
      options.success = function(resp) {
        var method = options.reset ? 'reset' : 'set';
        collection[method](resp, options);
        if (success) success(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) : {};
      if (!(model = this._prepareModel(model, options))) return false;
      if (!options.wait) this.add(model, options);
      var collection = this;
      var success = options.success;
      options.success = function(model, resp) {
        if (options.wait) collection.add(model, options);
        if (success) success(model, resp, options);
      };
      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);
    },

    // 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 (attrs instanceof Model) 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 to create a model's ties to a collection.
    _addReference: function(model, options) {
      this._byId[model.cid] = model;
      if (model.id != null) this._byId[model.id] = model;
      if (!model.collection) model.collection = this;
      model.on('all', this._onModelEvent, this);
    },

    // Internal method to sever a model's ties to a collection.
    _removeReference: function(model, options) {
      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 ((event === 'add' || event === 'remove') && collection !== this) return;
      if (event === 'destroy') this.remove(model, options);
      if (model && event === 'change:' + model.idAttribute) {
        delete this._byId[model.previous(model.idAttribute)];
        if (model.id != null) this._byId[model.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 methods = ['forEach', 'each', 'map', 'collect', 'reduce', 'foldl',
    'inject', 'reduceRight', 'foldr', 'find', 'detect', 'filter', 'select',
    'reject', 'every', 'all', 'some', 'any', 'include', 'contains', 'invoke',
    'max', 'min', 'toArray', 'size', 'first', 'head', 'take', 'initial', 'rest',
    'tail', 'drop', 'last', 'without', 'difference', 'indexOf', 'shuffle',
    'lastIndexOf', 'isEmpty', 'chain', 'sample'];

  // Mix in each Underscore method as a proxy to `Collection#models`.
  _.each(methods, function(method) {
    Collection.prototype[method] = function() {
      var args = slice.call(arguments);
      args.unshift(this.models);
      return _[method].apply(_, args);
    };
  });

  // Underscore methods that take a property name as an argument.
  var attributeMethods = ['groupBy', 'countBy', 'sortBy', 'indexBy'];

  // Use attributes instead of properties.
  _.each(attributeMethods, function(method) {
    Collection.prototype[method] = function(value, context) {
      var iterator = _.isFunction(value) ? value : function(model) {
        return model.get(value);
      };
      return _[method](this.models, iterator, context);
    };
  });

  // 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');
    options || (options = {});
    _.extend(this, _.pick(options, viewOptions));
    this._ensureElement();
    this.initialize.apply(this, arguments);
    this.delegateEvents();
  };

  // Cached regex to split keys for `delegate`.
  var delegateEventSplitter = /^(\S+)\s*(.*)$/;

  // List of view options to be merged 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.$el.remove();
      this.stopListening();
      return this;
    },

    // Change the view's element (`this.el` property), including event
    // re-delegation.
    setElement: function(element, delegate) {
      if (this.$el) this.undelegateEvents();
      this.$el = element instanceof Backbone.$ ? element : Backbone.$(element);
      this.el = this.$el[0];
      if (delegate !== false) this.delegateEvents();
      return this;
    },

    // 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`.
    // This only works for delegate-able events: not `focus`, `blur`, and
    // not `change`, `submit`, and `reset` in Internet Explorer.
    delegateEvents: function(events) {
      if (!(events || (events = _.result(this, 'events')))) return this;
      this.undelegateEvents();
      for (var key in events) {
        var method = events[key];
        if (!_.isFunction(method)) method = this[events[key]];
        if (!method) continue;

        var match = key.match(delegateEventSplitter);
        var eventName = match[1], selector = match[2];
        method = _.bind(method, this);
        eventName += '.delegateEvents' + this.cid;
        if (selector === '') {
          this.$el.on(eventName, method);
        } else {
          this.$el.on(eventName, selector, method);
        }
      }
      return this;
    },

    // Clears all callbacks previously bound to the view with `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() {
      this.$el.off('.delegateEvents' + this.cid);
      return this;
    },

    // 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');
        var $el = Backbone.$('<' + _.result(this, 'tagName') + '>').attr(attrs);
        this.setElement($el, false);
      } else {
        this.setElement(_.result(this, 'el'), false);
      }
    }

  });

  // 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;
    }

    // If we're sending a `PATCH` request, and we're in an old Internet Explorer
    // that still has ActiveX enabled by default, override jQuery to use that
    // for XHR instead. Remove this line when jQuery supports `PATCH` on IE8.
    if (params.type === 'PATCH' && noXhrPatch) {
      params.xhr = function() {
        return new ActiveXObject("Microsoft.XMLHTTP");
      };
    }

    // 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;
  };

  var noXhrPatch =
    typeof window !== 'undefined' && !!window.ActiveXObject &&
      !(window.XMLHttpRequest && (new XMLHttpRequest).dispatchEvent);

  // 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);
        router.execute(callback, args);
        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) {
      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 = [];
    _.bindAll(this, 'checkUrl');

    // 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 detecting MSIE.
  var isExplorer = /msie [\w.]+/;

  // Cached regex for removing a trailing slash.
  var trailingSlash = /\/$/;

  // 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() {
      return this.location.pathname.replace(/[^\/]$/, '$&/') === this.root;
    },

    // 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 cross-browser normalized URL fragment, either from the URL,
    // the hash, or the override.
    getFragment: function(fragment, forcePushState) {
      if (fragment == null) {
        if (this._hasPushState || !this._wantsHashChange || forcePushState) {
          fragment = decodeURI(this.location.pathname + this.location.search);
          var root = this.root.replace(trailingSlash, '');
          if (!fragment.indexOf(root)) fragment = fragment.slice(root.length);
        } 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._wantsPushState  = !!this.options.pushState;
      this._hasPushState    = !!(this.options.pushState && this.history && this.history.pushState);
      var fragment          = this.getFragment();
      var docMode           = document.documentMode;
      var oldIE             = (isExplorer.exec(navigator.userAgent.toLowerCase()) && (!docMode || docMode <= 7));

      // Normalize root to always include a leading and trailing slash.
      this.root = ('/' + this.root + '/').replace(rootStripper, '/');

      if (oldIE && this._wantsHashChange) {
        var frame = Backbone.$('<iframe src="javascript:0" tabindex="-1">');
        this.iframe = frame.hide().appendTo('body')[0].contentWindow;
        this.navigate(fragment);
      }

      // Depending on whether we're using pushState or hashes, and whether
      // 'onhashchange' is supported, determine how we check the URL state.
      if (this._hasPushState) {
        Backbone.$(window).on('popstate', this.checkUrl);
      } else if (this._wantsHashChange && ('onhashchange' in window) && !oldIE) {
        Backbone.$(window).on('hashchange', this.checkUrl);
      } else if (this._wantsHashChange) {
        this._checkUrlInterval = setInterval(this.checkUrl, this.interval);
      }

      // Determine if we need to change the base url, for a pushState link
      // opened by a non-pushState browser.
      this.fragment = fragment;
      var loc = this.location;

      // 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()) {
          this.fragment = this.getFragment(null, true);
          this.location.replace(this.root + '#' + this.fragment);
          // 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() && loc.hash) {
          this.fragment = this.getHash().replace(routeStripper, '');
          this.history.replaceState({}, document.title, this.root + this.fragment);
        }

      }

      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() {
      Backbone.$(window).off('popstate', this.checkUrl).off('hashchange', this.checkUrl);
      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 (current === this.fragment && this.iframe) {
        current = this.getFragment(this.getHash(this.iframe));
      }
      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) {
      fragment = this.fragment = this.getFragment(fragment);
      return _.any(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};

      var url = this.root + (fragment = this.getFragment(fragment || ''));

      // Strip the hash for matching.
      fragment = fragment.replace(pathStripper, '');

      if (this.fragment === fragment) return;
      this.fragment = fragment;

      // Don't include a trailing slash on the root.
      if (fragment === '' && url !== '/') url = url.slice(0, -1);

      // If pushState is available, we use it to set the fragment as a real URL.
      if (this._hasPushState) {
        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.getFragment(this.getHash(this.iframe)))) {
          // 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) this.iframe.document.open().close();
          this._updateHash(this.iframe.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's 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.
    var Surrogate = function(){ this.constructor = child; };
    Surrogate.prototype = parent.prototype;
    child.prototype = new Surrogate;

    // Add prototype properties (instance properties) to the subclass,
    // if supplied.
    if (protoProps) _.extend(child.prototype, protoProps);

    // 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(model, resp, options);
      model.trigger('error', model, resp, options);
    };
  };

  return Backbone;

}));

/**
 * Backbone localStorage and sessionStorage Adapter
 * Version 0.0.1
 *
 * 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;

    if (typeof this.name.startsWith === "function" && this.name.startsWith('+')) {
      itemRe = new RegExp("^\\" + this.name + "-");
    } else {
      itemRe = new RegExp("^" + this.name + "-");
    }
    // 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.
         */
        this.views = {};
        this.keys = _.partial(_.keys, this.views);
        this.getAll = _.partial(_.identity, this.views);

        this.get = function (id) {
            return this.views[id];
        }.bind(this);

        this.xget = function (id) {
            /* Exclusive get. Returns all instances except the given id. */
            return _.filter(this.views, function (view, vid) {
                return vid !== id;
            });
        }.bind(this);

        this.add = function (id, view) {
            this.views[id] = view;
            return view;
        }.bind(this);

        this.remove = function (id) {
            if (typeof id === "undefined") {
                new Backbone.View().remove.apply(this);
            }
            var view = this.views[id];
            if (view) {
                delete this.views[id];
                view.remove();
                return view;
            }
        }.bind(this);

        this.removeAll = function () {
            _.each(_.keys(this.views), this.remove);
        }.bind(this);
        Backbone.View.apply(this, Array.prototype.slice.apply(arguments));
    };

    var methods = ['forEach', 'each', 'map', 'collect', 'reduce', 'foldl',
        'inject', 'reduceRight', 'foldr', 'find', 'detect', 'filter', 'select',
        'reject', 'every', 'all', 'some', 'any', 'include', 'contains', 'invoke',
        'max', 'min', 'toArray', 'size', 'first', 'head', 'take', 'initial', 'rest',
        'tail', 'drop', 'last', 'without', 'difference', 'indexOf', 'shuffle',
        'lastIndexOf', 'isEmpty', 'chain', 'sample'];
    // 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) 2012-2016, Jan-Carel Brand <jc@opkode.com>
// Licensed under the Mozilla Public License (MPLv2)
//
/*global Backbone, define, window, document, locales */

(function (root, factory) {
    // Two modules are loaded as dependencies.
    //
    // * **converse-dependencies**: A list of dependencies converse.js depends on.
    //   The path to this module is in main.js and the module itself can be overridden.
    // * **converse-templates**: The HTML templates used by converse.js.
    //
    // The dependencies are then split up and passed into the factory function,
    // which contains and instantiates converse.js.
    define("converse-core", [
        "jquery",
        "underscore",
        "polyfill",
        "utils",
        "moment_with_locales",
        "strophe",
        "converse-templates",
        "converse-pluggable",
        "strophe.disco",
        "backbone.browserStorage",
        "backbone.overview",
    ], factory);
}(this, function ($, _, dummy, utils, moment, Strophe, templates, pluggable) {
    /*
     * 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 $pres = Strophe.$pres;
    var b64_sha1 = Strophe.SHA1.b64_sha1;
    Strophe = Strophe.Strophe;

    // Use Mustache style syntax for variable interpolation
    /* Configuration of underscore 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
    };

    // We create an object to act as the "this" context for event handlers (as
    // defined below and accessible via converse_api.listen).
    // We don't want the inner converse object to be the context, since it
    // contains sensitive information, and we don't want it to be something in
    // the DOM or window, because then anyone can trigger converse events.
    var event_context = {};

    var converse = {
        templates: templates,

        emit: function (evt, data) {
            $(event_context).trigger(evt, data);
        },

        once: function (evt, handler) {
            $(event_context).one(evt, handler);
        },

        on: function (evt, handler) {
            if (_.contains(['ready', 'initialized'], evt)) {
                converse.log('Warning: The "'+evt+'" event has been deprecated and will be removed, please use "connected".');
            }
            $(event_context).bind(evt, handler);
        },

        off: function (evt, handler) {
            $(event_context).unbind(evt, handler);
        }
    };

    // Make converse pluggable
    pluggable.enable(converse);

    // 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.LOGIN = "login";
    converse.ANONYMOUS  = "anonymous";
    converse.PREBIND = "prebind";
    converse.OPENED = 'opened';
    converse.CLOSED = 'closed';

    var PRETTY_CONNECTION_STATUS = {
        0: 'ERROR',
        1: 'CONNECTING',
        2: 'CONNFAIL',
        3: 'AUTHENTICATING',
        4: 'AUTHFAIL',
        5: 'CONNECTED',
        6: 'DISCONNECTED',
        7: 'DISCONNECTING',
        8: 'ATTACHED',
        9: 'REDIRECT'
    };

    converse.log = function (txt, level) {
        var logger;
        if (typeof console === "undefined" || typeof console.log === "undefined") {
            logger = { log: function () {}, error: function () {} };
        } else {
            logger = console;
        }
        if (converse.debug) {
            if (level === 'error') {
                logger.log('ERROR: '+txt);
            } else {
                logger.log(txt);
            }
        }
    };


    converse.initialize = function (settings, callback) {
        "use strict";
        var init_deferred = new $.Deferred();
        var converse = this;
        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('ROSTERX', 'http://jabber.org/protocol/rosterx');
        Strophe.addNamespace('XFORM', 'jabber:x:data');
        Strophe.addNamespace('NICK', 'http://jabber.org/protocol/nick');
        Strophe.addNamespace('HINTS', 'urn:xmpp:hints');

        // Instance level constants
        this.TIMEOUTS = { // Set as module attr so that we can override in tests.
            'PAUSED':     20000,
            'INACTIVE':   90000
        };

        // 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';


        // Detect support for the user's locale
        // ------------------------------------
        this.isConverseLocale = function (locale) { return typeof locales[locale] !== "undefined"; };
        this.isMomentLocale = function (locale) { return moment.locale() !== moment.locale(locale); };

        this.user_settings = settings; // Save the user settings so that they can be used by plugins

        this.wrappedChatBox = function (chatbox) {
            /* Wrap a chatbox for outside consumption (i.e. so that it can be
             * returned via the API.
             */
            if (!chatbox) { return; }
            var view = converse.chatboxviews.get(chatbox.get('id'));
            return {
                'close': view.close.bind(view),
                'focus': view.focus.bind(view),
                'get': chatbox.get.bind(chatbox),
                'open': view.show.bind(view),
                'set': chatbox.set.bind(chatbox)
            };
        };

        if (!moment.locale) { //moment.lang is deprecated after 2.8.1, use moment.locale instead
            moment.locale = moment.lang;
        }
        moment.locale(utils.detectLocale(this.isMomentLocale));
        this.i18n = settings.i18n ? settings.i18n : locales[utils.detectLocale(this.isConverseLocale)] || {};

        // Translation machinery
        // ---------------------
        var __ = utils.__.bind(this);
        var DESC_GROUP_TOGGLE = __('Click to hide these contacts');

        // Default configuration values
        // ----------------------------
        this.default_settings = {
            allow_contact_requests: true,
            animate: true,
            authentication: 'login', // Available values are "login", "prebind", "anonymous".
            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'
            bosh_service_url: undefined, // The BOSH connection manager URL.
            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: false,
            locked_domain: undefined,
            message_carbons: false, // Support for XEP-280
            password: undefined,
            prebind: false, // XXX: Deprecated, use "authentication" instead.
            prebind_url: null,
            rid: undefined,
            roster_groups: false,
            show_only_online_users: false,
            sid: undefined,
            storage: 'session',
            strict_plugin_dependencies: false,
            synchronize_availability: true, // Set to false to not sync with other clients or with resource name of the particular client that it should synchronize with
            visible_toolbar_buttons: {
                'emoticons': true,
                'call': false,
                'clear': true,
                'toggle_occupants': true
            },
            websocket_url: undefined,
            xhr_custom_status: false,
            xhr_custom_status_url: '',
        };

        _.extend(this, this.default_settings);
        // Allow only whitelisted configuration attributes to be overwritten
        _.extend(this, _.pick(settings, Object.keys(this.default_settings)));

        // BBB
        if (this.prebind === true) { this.authentication = converse.PREBIND; }

        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.");
            }
        }

        if (settings.visible_toolbar_buttons) {
            _.extend(
                this.visible_toolbar_buttons,
                _.pick(settings.visible_toolbar_buttons, [
                    'emoticons', 'call', 'clear', 'toggle_occupants'
                ]
            ));
        }
        $.fx.off = !this.animate;

        // Module-level variables
        // ----------------------
        this.callback = callback || function () {};
        /* 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;

        // Module-level functions
        // ----------------------

        this.generateResource = function () {
            return '/converse.js-' + Math.floor(Math.random()*139749825).toString();
        };

        this.sendCSI = function (stat) {
            /* Send out a Chat Status Notification (XEP-0352) */
            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') {
                converse.auto_changed_status = true;
                converse.xmppstatus.setStatus('away');
            } else if (converse.auto_xa > 0 &&
                    converse.idle_seconds > converse.auto_xa && stat !== 'xa') {
                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).on('click mousemove keypress focus'+unloadevent, converse.onUserActivity);
            converse.everySecondTrigger = window.setInterval(converse.onEverySecond, 1000);
        };

        this.giveFeedback = function (message, klass) {
            $('.conn-feedback').each(function (idx, el) {
                var $el = $(el);
                $el.addClass('conn-feedback').text(message);
                if (klass) {
                    $el.addClass(klass);
                } else {
                    $el.removeClass('error');
                }
            });
            converse.emit('feedback', {'message': message, 'klass': klass});
        };

        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 (condition) {
            converse.connection.disconnect('re-connecting');
            converse.connection.reset();
            converse.log('Attempting to reconnect');
            converse.giveFeedback(__('Attempting to reconnect'), 'error');
            converse.clearSession();
            converse._tearDown();
            if (converse.authentication !== "prebind") {
                converse.attemptNonPreboundSession();
            } else if (converse.prebind_url) {
                converse.startNewBOSHSession();
            }
        }, 1000);

        this.onDisconnected = function (condition) {
            if (converse.disconnection_cause === Strophe.Status.CONNFAIL && converse.auto_reconnect) {
                converse.reconnect(condition);
                return 'reconnecting';
            } else {
                converse._tearDown();
                converse.emit('disconnected');
                return 'disconnected';
            }
        };

        this.onConnectStatusChanged = function (status, condition, reconnect) {
            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;
                delete converse.disconnection_cause;
                if ((typeof reconnect !== 'undefined') && (reconnect)) {
                    converse.log(status === Strophe.Status.CONNECTED ? 'Reconnected' : 'Reattached');
                    converse.onReconnected();
                } else {
                    converse.log(status === Strophe.Status.CONNECTED ? 'Connected' : 'Attached');
                    if (converse.connection.restored) {
                        converse.send_initial_presence = false; // No need to send an initial presence stanza when
                                                                // we're restoring an existing session.
                    }
                    converse.onConnected();
                }
            } else if (status === Strophe.Status.DISCONNECTED) {
                converse.onDisconnected(condition);
            } else if (status === Strophe.Status.ERROR) {
                converse.giveFeedback(__('Error'), 'error');
            } 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.connection.disconnect(__('Authentication Failed'));
                converse.disconnection_cause = Strophe.Status.AUTHFAIL;
            } else if (status === Strophe.Status.CONNFAIL) {
                if (converse.connection.authenticated) {
                    // Only set the disconnection_cause if we're still
                    // authenticated. If we're not, then the user logged out,
                    // and it's therefore not strictly speaking a connection
                    // failure (so we won't automatically reconnect).
                    converse.disconnection_cause = Strophe.Status.CONNFAIL;
                }
            } else if (status === Strophe.Status.DISCONNECTING) {
                if (condition) {
                    converse.giveFeedback(condition, 'error');
                }
            }
        };

        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 (this.roster) {
                this.roster.browserStorage._clear();
            }
            this.session.browserStorage._clear();
        };

        this.logOut = function () {
            converse.chatboxviews.closeAllChatBoxes();
            converse.clearSession();
            if (typeof converse.connection !== 'undefined') {
                converse.connection.disconnect();
                converse.connection.reset();
            }
        };

        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.afterReconnected = function () {
            this.registerPresenceHandler();
            this.chatboxes.registerMessageHandler();
            this.xmppstatus.sendPresence();
            this.giveFeedback(__('Contacts'));
        };

        this.onReconnected = function () {
            // We need to re-register all the event handlers on the newly
            // created connection.
            var deferred = new $.Deferred();
            this.initStatus().done(function () {
                this.afterReconnected();
                deferred.resolve();
            }.bind(this));
            converse.emit('reconnected');
            return deferred.promise();
        };

        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).find('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 () {
            this.roster = new this.RosterContacts();
            this.roster.browserStorage = new Backbone.BrowserStorage[this.storage](
                b64_sha1('converse.contacts-'+this.bare_jid));
            this.rostergroups = new converse.RosterGroups();
            this.rostergroups.browserStorage = new Backbone.BrowserStorage[converse.storage](
                b64_sha1('converse.roster.groups'+converse.bare_jid));
        };

        this.unregisterPresenceHandler = function () {
            if (typeof this.presence_ref !== 'undefined') {
                this.connection.deleteHandler(this.presence_ref);
                delete this.presence_ref;
            }
        };

        this.registerPresenceHandler = function () {
            this.unregisterPresenceHandler();
            this.presence_ref = converse.connection.addHandler(
                function (presence) {
                    converse.roster.presenceHandler(presence);
                    return true;
                }, null, 'presence', null);
        };

        this.onStatusInitialized = function () {
            this.registerIntervalHandler();
            this.initRoster();
            this.chatboxes.onConnected();
            this.registerPresenceHandler();
            this.giveFeedback(__('Contacts'));
            if (typeof this.callback === 'function') {
                // XXX: Deprecate in favor of init_deferred
                this.callback();
            }
            if (converse.connection.service === 'jasmine tests') {
                init_deferred.resolve(converse);
            } else {
                init_deferred.resolve();
            }
            converse.emit('initialized');
        };

        this.onConnected = function (callback) {
            // When reconnecting, 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.
            // XXX: ran into an issue where a returned PubSub BOSH response was
            // not received by the browser. The solution was to flush the
            // connection early on. I don't know what the underlying cause of
            // this issue is, and whether it's a Strophe.js or Prosody bug.
            // My suspicion is that Prosody replies to an invalid/expired
            // Request, which is why the browser then doesn't receive it.
            // In any case, flushing here (sending out a new BOSH request)
            // solves the problem.
            converse.connection.flush();
            /* Called as soon as a new connection has been established, either
             * by logging in or by attaching to an existing BOSH session.
             */
            this.chatboxviews.closeAllChatBoxes();
            this.jid = this.connection.jid;
            this.bare_jid = Strophe.getBareJidFromJid(this.connection.jid);
            this.resource = Strophe.getResourceFromJid(this.connection.jid);
            this.domain = Strophe.getDomainFromJid(this.connection.jid);
            this.features = new this.Features();
            this.enableCarbons();
            this.initStatus().done(_.bind(this.onStatusInitialized, this));
            converse.emit('connected');
            converse.emit('ready'); // BBB: Will be removed.
        };

        this.RosterContact = Backbone.Model.extend({

            initialize: function (attributes, options) {
                var jid = attributes.jid;
                var bare_jid = Strophe.getBareJidFromJid(jid);
                var resource = Strophe.getResourceFromJid(jid);
                attributes.jid = bare_jid;
                this.set(_.extend({
                    'id': bare_jid,
                    'jid': bare_jid,
                    'fullname': bare_jid,
                    'chat_status': 'offline',
                    'user_id': Strophe.getNodeFromJid(jid),
                    'resources': resource ? [resource] : [],
                    'groups': [],
                    'image_type': 'image/png',
                    'image': "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",
                    '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 (jid) {
                /* 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;
            },

            removeResource: function (resource) {
                var resources = this.get('resources'), idx;
                if (resource) {
                    idx = _.indexOf(resources, resource);
                    if (idx !== -1) {
                        resources.splice(idx, 1);
                        this.save({'resources': resources});
                    }
                }
                else {
                    // if there is no resource (resource is null), it probably
                    // means that the user is now completely offline. To make sure
                    // that there isn't any "ghost" resources left, we empty the array
                    this.save({'resources': []});
                    return 0;
                }
                return resources.length;
            },

            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;
                }
            },

            subscribeToSuggestedItems: function (msg) {
                $(msg).find('item').each(function (i, items) {
                    if (this.getAttribute('action') === 'add') {
                        converse.roster.addAndSubscribe(
                                this.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 });
                _.map(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 (iq) {
                        var contact = this.create(_.extend({
                            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();
            },

            addResource: function (bare_jid, resource) {
                var item = this.get(bare_jid),
                    resources;
                if (item) {
                    resources = item.get('resources');
                    if (resources) {
                        if (_.indexOf(resources, resource) === -1) {
                            resources.push(resource);
                            item.set({'resources': resources});
                        }
                    } else  {
                        item.set({'resources': [resource]});
                    }
                }
            },

            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 (_.indexOf(ignored, models[i].get('chat_status')) === -1) {
                        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}));
                $(iq).children('query').find('item').each(function (idx, item) {
                    this.updateContact(item);
                }.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});
                return converse.connection.sendIQ(iq, function () {
                        this.onReceivedFromServer.apply(this, arguments);
                        callback.apply(this, arguments);
                    }.bind(this));
            },

            onReceivedFromServer: function (iq) {
                /* An IQ stanza containing the roster has been received from
                 * the XMPP server.
                 */
                converse.emit('roster', iq);
                $(iq).children('query').find('item').each(function (idx, item) {
                    this.updateContact(item);
                }.bind(this));
            },

            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 = [],
                    contact = this.get(jid),
                    ask = item.getAttribute("ask"),
                    subscription = item.getAttribute("subscription");
                $.map(item.getElementsByTagName('group'), function (group) {
                    groups.push(Strophe.getText(group));
                });
                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 = $(presence).children('nick[xmlns='+Strophe.NS.NICK+']').text();
                var user_data = {
                    jid: bare_jid,
                    subscription: 'none',
                    ask: null,
                    requesting: true,
                    fullname: nick || 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 = $(presence),
                    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 = $presence.find('show').text() || 'online',
                    status_message = $presence.find('status'),
                    contact = this.get(bare_jid);
                if (this.isSelf(bare_jid)) {
                    if ((converse.connection.jid !== jid) &&
                        (presence_type !== 'unavailable') &&
                        (converse.synchronize_availability === true ||
                         converse.synchronize_availability === resource)) {
                        // Another resource has changed its status and
                        // synchronize_availability option set to update,
                        // we'll update ours as well.
                        converse.xmppstatus.save({'status': chat_status});
                        if (status_message.length) {
                            converse.xmppstatus.save({
                                'status_message': status_message.text()
                            });
                        }
                    }
                    return;
                } else if (($presence.find('x').attr('xmlns') || '').indexOf(Strophe.NS.MUC) === 0) {
                    return; // Ignore MUC
                }
                if (contact && (status_message.text() !== contact.get('status'))) {
                    contact.save({'status': status_message.text()});
                }
                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) {
                    // Only set the user to offline if there aren't any
                    // other resources still available.
                    if (contact.removeResource(resource) === 0) {
                        contact.save({'chat_status': "offline"});
                    }
                } else if (contact) { // presence_type is undefined
                    this.addResource(bare_jid, resource);
                    contact.save({'chat_status': chat_status});
                }
            }
        });


        this.RosterGroup = Backbone.Model.extend({
            initialize: function (attributes, options) {
                this.set(_.extend({
                    description: DESC_GROUP_TOGGLE,
                    state: converse.OPENED
                }, attributes));
                // Collection of contacts belonging to this group.
                this.contacts = new converse.RosterContacts();
            }
        });


        this.RosterGroups = Backbone.Collection.extend({
            model: converse.RosterGroup,
        });


        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.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.find('delay');
                var type = $message.attr('type'),
                    body, stamp, time, sender, from;

                if (type === 'error') {
                    body = $message.find('error').children('text').text();
                } else {
                    body = $message.children('body').text();
                }
                var delayed = $delay.length > 0,
                    fullname = this.get('fullname'),
                    is_groupchat = type === 'groupchat',
                    chat_state = $message.find(converse.COMPOSING).length && converse.COMPOSING ||
                        $message.find(converse.PAUSED).length && converse.PAUSED ||
                        $message.find(converse.INACTIVE).length && converse.INACTIVE ||
                        $message.find(converse.ACTIVE).length && converse.ACTIVE ||
                        $message.find(converse.GONE).length && converse.GONE;

                if (is_groupchat) {
                    from = Strophe.unescapeNode(Strophe.getResourceFromJid($message.attr('from')));
                } else {
                    from = Strophe.getBareJidFromJid($message.attr('from'));
                }
                if (_.isEmpty(fullname)) {
                    fullname = from;
                }
                if (delayed) {
                    stamp = $delay.attr('stamp');
                    time = stamp;
                } else {
                    time = moment().format();
                }
                if ((is_groupchat && from === this.get('nick')) || (!is_groupchat && from === converse.bare_jid)) {
                    sender = 'me';
                } else {
                    sender = 'them';
                }
                return {
                    'type': type,
                    'chat_state': chat_state,
                    'delayed': delayed,
                    'fullname': fullname,
                    'message': body || undefined,
                    'msgid': $message.attr('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.
                 */
                collection.each(function (chatbox) {
                    if (this.chatBoxMayBeShown(chatbox)) {
                        chatbox.trigger('show');
                    }
                }.bind(this));
                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 $message = $(message),
                    from_jid =  Strophe.getBareJidFromJid($message.attr('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 $message = $(message),
                    contact_jid, $forwarded, $delay, from_bare_jid,
                    from_resource, is_me, msgid,
                    chatbox, resource,
                    from_jid = $message.attr('from'),
                    to_jid = $message.attr('to'),
                    to_resource = Strophe.getResourceFromJid(to_jid);

                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 = $message.find('forwarded');
                if ($forwarded.length) {
                    $message = $forwarded.children('message');
                    $delay = $forwarded.children('delay');
                    from_jid = $message.attr('from');
                    to_jid = $message.attr('to');
                }
                from_bare_jid = Strophe.getBareJidFromJid(from_jid);
                from_resource = Strophe.getResourceFromJid(from_jid);
                is_me = from_bare_jid === converse.bare_jid;
                msgid = $message.attr('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;
                }
                // Get chat box, but only create a new one when the message has a body.
                chatbox = this.getChatBox(contact_jid, $message.find('body').length > 0);
                if (!chatbox) {
                    return true;
                }
                if (msgid && chatbox.messages.findWhere({msgid: msgid})) {
                    return true; // We already have this message stored.
                }
                chatbox.createMessage($message, $delay, message);
                converse.roster.addResource(contact_jid, resource);
                converse.emit('message', message);
                return true;
            },

            getChatBox: function (jid, create) {
                /* 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?
                 */
                jid = jid.toLowerCase();
                var bare_jid = Strophe.getBareJidFromJid(jid);
                var chatbox = this.get(bare_jid);
                if (!chatbox && create) {
                    var roster_item = converse.roster.get(bare_jid);
                    if (roster_item === undefined) {
                        converse.log('Could not get roster item for JID '+bare_jid, 'error');
                        return;
                    }
                    chatbox = this.create({
                        'id': bare_jid,
                        'jid': bare_jid,
                        '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')
                    });
                }
                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 = $('#conversejs');
                    if (!$el.length) {
                        $el = $('<div id="conversejs">');
                        $('body').append($el);
                    }
                    $el.html(converse.templates.chats_panel());
                    this.setElement($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 = typeof type === 'string' ? type : (this.get('status') || converse.default_state);
                status_message = typeof status_message === 'string' ? 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);
                }
                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) {
                    $.ajax({
                        url:  this.xhr_custom_status_url,
                        type: 'POST',
                        data: {'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) {
                $(stanza).find('query item').each(function (idx, item) {
                    converse.connection.disco.info(
                        $(item).attr('jid'),
                        null,
                        this.onInfo.bind(this));
                }.bind(this));
            },

            onInfo: function (stanza) {
                var $stanza = $(stanza);
                if (($stanza.find('identity[category=server][type=im]').length === 0) &&
                    ($stanza.find('identity[category=conference][type=text]').length === 0)) {
                    // This isn't an IM server component
                    return;
                }
                $stanza.find('feature').each(function (idx, feature) {
                    var namespace = $(feature).attr('var');
                    this[namespace] = true;
                    this.create({
                        'var': namespace,
                        'from': $stanza.attr('from')
                    });
                }.bind(this));
            }
        });

        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();
            $.ajax({
                url:  converse.credentials_url,
                type: 'GET',
                dataType: "json",
                success: function (response) {
                    deferred.resolve({
                        'jid': response.jid,
                        'password': response.password
                    });
                },
                error: function (response) {
                    delete converse.connection;
                    converse.emit('noResumeableSession');
                    deferred.reject(response);
                }
            });
            return deferred.promise();
        };

        this.startNewBOSHSession = function () {
            $.ajax({
                url:  this.prebind_url,
                type: 'GET',
                dataType: "json",
                success: function (response) {
                    this.connection.attach(
                            response.jid,
                            response.sid,
                            response.rid,
                            this.onConnectStatusChanged
                    );
                }.bind(this),
                error: function (response) {
                    delete this.connection;
                    this.emit('noResumeableSession');
                }.bind(this)
            });
        };

        this.attemptPreboundSession = function (tokens) {
            /* Handle session resumption or initialization when prebind is being used.
             */
            if (this.jid && this.sid && this.rid) {
                return this.connection.attach(this.jid, this.sid, this.rid, this.onConnectStatusChanged);
            } else if (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)
                }
            } else {
                throw new Error("attemptPreboundSession: If you use prebind and not keepalive, "+
                    "then you MUST supply JID, RID and SID values");
            }
            // We haven't been able to attach yet. Let's see if there
            // is a prebind_url, otherwise there's nothing with which
            // we can attach.
            if (this.prebind_url) {
                this.startNewBOSHSession();
            } else {
                delete this.connection;
                this.emit('noResumeableSession');
            }
        };

        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.user.login.");
                }
                this.connection.connect(this.jid.toLowerCase(), null, this.onConnectStatusChanged);
            } else if (this.authentication === converse.LOGIN) {
                if (!this.password) {
                    throw new Error("initConnection: If you use auto_login and "+
                        "authentication='login' then you also need to provide a password.");
                }
                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.connect(this.jid, this.password, this.onConnectStatusChanged);
            }
        };

        this.attemptNonPreboundSession = function () {
            /* 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) {
                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 (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 {
                    this.autoLogin();
                }
            }
        };

        this.logIn = function (credentials) {
            if (credentials || this.authentication === converse.ANONYMOUS) {
                // When credentials are passed in, they override prebinding
                // or credentials fetching via HTTP
                this.autoLogin(credentials);
            } else {
                // 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();
                } else {
                    this.attemptNonPreboundSession();
                }
            }
        };

        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);
            } else if (this.bosh_service_url) {
                this.connection = new Strophe.Connection(this.bosh_service_url, {'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.
            if (this.features) {
                this.features.reset();
            }
            $(window).off('click mousemove keypress focus'+unloadevent, converse.onUserActivity);
            window.clearInterval(converse.everySecondTrigger);
            return this;
        };

        this._initialize = function () {
            this.chatboxes = new this.ChatBoxes();
            this.chatboxviews = new this.ChatBoxViews({model: this.chatboxes});
            this.initSession();
            this.initConnection();
            this.setUpXMLLogging();
            this.logIn();
            return this;
        };

        // Initialization
        // --------------
        // This is the end of the initialize method.
        if (settings.connection) {
            this.connection = settings.connection;
        }
        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.
             */
            _.extend(converse.default_settings, settings);
            _.extend(converse, settings);
            _.extend(converse, _.pick(converse.user_settings, Object.keys(settings)));
        };
        converse.pluggable.initializePlugins({
            'updateSettings': updateSettings,
            'converse': converse
        });
        converse.emit('pluginsInitialized');
        converse._initialize();
        converse.registerGlobalEventHandlers();
        return init_deferred.promise();
    };
    return converse;
}));

// Converse.js (A browser based XMPP chat client)
// http://conversejs.org
//
// Copyright (c) 2012-2016, 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-api", [
            "jquery",
            "underscore",
            "moment_with_locales",
            "strophe",
            "utils",
            "converse-core"
        ],
        factory);
}(this, function ($, _, moment, strophe, utils, converse) {
    var Strophe = strophe.Strophe;
    return {
        'initialize': function (settings, callback) {
            return converse.initialize(settings, callback);
        },
        'log': converse.log,
        '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 (!_.contains(_.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 (typeof message === "string") {
                        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 (_.contains(Object.keys(converse.default_settings), key)) {
                    return converse[key];
                }
            },
            'set': function (key, val) {
                var o = {};
                if (typeof key === "object") {
                    _.extend(converse, _.pick(key, Object.keys(converse.default_settings)));
                } else if (typeof key === "string") {
                    o[key] = val;
                    _.extend(converse, _.pick(o, Object.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 (typeof jids === "undefined") {
                    jids = converse.roster.pluck('jid');
                } else if (typeof jids === "string") {
                    return _transform(jids);
                }
                return _.map(jids, _transform);
            },
            'add': function (jid, name) {
                if (typeof jid !== "string" || jid.indexOf('@') < 0) {
                    throw new TypeError('contacts.add: invalid jid');
                }
                converse.roster.addAndSubscribe(jid, _.isEmpty(name)? jid: name);
            }
        },
        'chats': {
            'open': function (jids) {
                var chatbox;
                if (typeof jids === "undefined") {
                    converse.log("chats.open: You need to provide at least one JID", "error");
                    return null;
                } else if (typeof jids === "string") {
                    chatbox = converse.wrappedChatBox(converse.chatboxes.getChatBox(jids, true));
                    chatbox.open();
                    return chatbox;
                }
                return _.map(jids, function (jid) {
                    chatbox = converse.wrappedChatBox(converse.chatboxes.getChatBox(jid, true));
                    chatbox.open();
                    return chatbox;
                });
            },
            'get': function (jids) {
                if (typeof jids === "undefined") {
                    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.wrappedChatBox(chatbox));
                        }
                    });
                    return result;
                } else if (typeof jids === "string") {
                    return converse.wrappedChatBox(converse.chatboxes.getChatBox(jids, true));
                }
                return _.map(jids,
                    _.partial(
                        _.compose(
                            converse.wrappedChatBox.bind(converse), converse.chatboxes.getChatBox.bind(converse.chatboxes)
                        ), _, true
                    )
                );
            }
        },
        'tokens': {
            'get': function (id) {
                if (!converse.expose_rid_and_sid || typeof converse.connection === "undefined") {
                    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': function (evt, handler) {
                converse.once(evt, handler);
            },
            'on': function (evt, handler) {
                converse.on(evt, handler);
            },
            'not': function (evt, handler) {
                converse.off(evt, handler);
            },
            'stanza': function (name, options, handler) {
                if (typeof options === 'function') {
                    handler = options;
                    options = {};
                } else {
                    options = options || {};
                }
                converse.connection.addHandler(
                    handler,
                    options.ns,
                    name,
                    options.type,
                    options.id,
                    options.from,
                    options
                );
            },
        },
        'send': function (stanza) {
            converse.connection.send(stanza);
        },
        'plugins': {
            'add': function (name, plugin) {
                plugin.__name__ = name;
                converse.pluggable.plugins[name] = plugin;
            },
            'remove': function (name) {
                delete converse.plugins[name];
            },
            'override': function (name, value) {
                /* Helper method for overriding methods and attributes directly on the
                 * converse object. For Backbone objects, use instead the 'extend'
                 * method.
                 *
                 * If a method is overridden, then the original method will still be
                 * available via the _super attribute.
                 *
                 * name: The attribute being overridden.
                 * value: The value of the attribute being overridden.
                 */
                converse._overrideAttribute(name, value);
            },
            'extend': function (obj, attributes) {
                /* Helper method for overriding or extending Converse's Backbone Views or Models
                 *
                 * When a method is overriden, the original will still be available
                 * on the _super attribute of the object being overridden.
                 *
                 * obj: The Backbone View or Model
                 * attributes: A hash of attributes, such as you would pass to Backbone.Model.extend or Backbone.View.extend
                 */
                converse._extendObject(obj, attributes);
            }
        },
        'env': {
            '$build': strophe.$build,
            '$iq': strophe.$iq,
            '$msg': strophe.$msg,
            '$pres': strophe.$pres,
            'Strophe': strophe.Strophe,
            'b64_sha1':  strophe.SHA1.b64_sha1,
            '_': _,
            'jQuery': $,
            'moment': moment,
            'utils': utils
        }
    };
}));

/*
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);


define('text!af',[],function () { return '{\n   "domain": "converse",\n   "locale_data": {\n      "converse": {\n         "": {\n            "domain": "converse",\n            "lang": "af"\n         },\n         "Close this chat box": [\n            null,\n            "Sluit hierdie kletskas"\n         ],\n         "Personal message": [\n            null,\n            "Persoonlike boodskap"\n         ],\n         "me": [\n            null,\n            "ek"\n         ],\n         "is typing": [\n            null,\n            "tik tans"\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         "Hide the list of occupants": [\n            null,\n            "Verskuil die lys van deelnemers"\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         "Connecting": [\n            null,\n            "Verbind tans"\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         "Save": [\n            null,\n            "Stoor"\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        


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         "Close this chat box": [\n            null,\n            "Tanca aquest quadre del xat"\n         ],\n         "Personal message": [\n            null,\n            "Missatge personal"\n         ],\n         "me": [\n            null,\n            "jo"\n         ],\n         "is typing": [\n            null,\n            "està escrivint"\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         "Hide the list of occupants": [\n            null,\n            "Amaga la llista d\'ocupants"\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         "Connecting": [\n            null,\n            "S\'està establint la connexió"\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         "Save": [\n            null,\n            "Desa"\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       


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         "Personal message": [\n            null,\n            "Persönliche Nachricht"\n         ],\n         "me": [\n            null,\n            "Ich"\n         ],\n         "is typing": [\n            null,\n            "tippt"\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         "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         "Connecting": [\n            null,\n            "Verbindungsaufbau …"\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         "user@server": [\n            null,\n            ""\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         "Save": [\n            null,\n            "Speichern"\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         "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            ""\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       


define('text!en',[],function () { return '{\n   "domain": "converse",\n   "locale_data": {\n      "converse": {\n         "": {\n            "domain": "converse",\n            "plural_forms": "nplurals=2; plural=(n != 1);",\n            "lang": "en"\n         },\n         "Close this chat box": [\n            null,\n            ""\n         ],\n         "Personal message": [\n            null,\n            ""\n         ],\n         "me": [\n            null,\n            ""\n         ],\n         "is typing": [\n            null,\n            ""\n         ],\n         "has stopped typing": [\n            null,\n            ""\n         ],\n         "has gone away": [\n            null,\n            ""\n         ],\n         "Show this menu": [\n            null,\n            "Show this menu"\n         ],\n         "Write in the third person": [\n            null,\n            "Write in the third person"\n         ],\n         "Remove messages": [\n            null,\n            "Remove messages"\n         ],\n         "Are you sure you want to clear the messages from this chat box?": [\n            null,\n            ""\n         ],\n         "has gone offline": [\n            null,\n            ""\n         ],\n         "is busy": [\n            null,\n            ""\n         ],\n         "Clear all messages": [\n            null,\n            ""\n         ],\n         "Hide the list of occupants": [\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            ""\n         ],\n         "Connecting": [\n            null,\n            ""\n         ],\n         "XMPP Username:": [\n            null,\n            ""\n         ],\n         "Password:": [\n            null,\n            "Password:"\n         ],\n         "Click here to log in anonymously": [\n            null,\n            "Click here to log in anonymously"\n         ],\n         "Log In": [\n            null,\n            "Log In"\n         ],\n         "Username": [\n            null,\n            ""\n         ],\n         "user@server": [\n            null,\n            ""\n         ],\n         "Sign in": [\n            null,\n            "Sign in"\n         ],\n         "I am %1$s": [\n            null,\n            "I am %1$s"\n         ],\n         "Click here to write a custom status message": [\n            null,\n            "Click here to write a custom status message"\n         ],\n         "Click to change your chat status": [\n            null,\n            "Click to change your chat status"\n         ],\n         "Custom status": [\n            null,\n            "Custom status"\n         ],\n         "Save": [\n            null,\n            "Save"\n         ],\n         "online": [\n            null,\n            "online"\n         ],\n         "busy": [\n            null,\n            "busy"\n         ],\n         "away for long": [\n            null,\n            "away for long"\n         ],\n         "away": [\n            null,\n            "away"\n         ],\n         "Online": [\n            null,\n            ""\n         ],\n         "Busy": [\n            null,\n            ""\n         ],\n         "Away": [\n            null,\n            ""\n         ],\n         "Offline": [\n            null,\n            ""\n         ],\n         "Log out": [\n            null,\n            ""\n         ],\n         "Contact name": [\n            null,\n            ""\n         ],\n         "Search": [\n            null,\n            ""\n         ],\n         "e.g. user@example.org": [\n            null,\n            ""\n         ],\n         "Add": [\n            null,\n            ""\n         ],\n         "Click to add new chat contacts": [\n            null,\n            ""\n         ],\n         "Add a contact": [\n            null,\n            ""\n         ],\n         "No users found": [\n            null,\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         "Personal message": [\n            null,\n            "Mensaje personal"\n         ],\n         "me": [\n            null,\n            "yo"\n         ],\n         "is typing": [\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         "Hide the list of occupants": [\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            "Contactos"\n         ],\n         "Connecting": [\n            null,\n            "Conectando"\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         "Save": [\n            null,\n            "Guardar"\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         "Attempting to reconnect": [\n            null,\n            ""\n         ],\n         "Error": [\n            null,\n            "Error"\n         ],\n         "Authenticat


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         "Personal message": [\n            null,\n            "Message personnel"\n         ],\n         "me": [\n            null,\n            "moi"\n         ],\n         "is typing": [\n            null,\n            "écrit"\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            "Êtes-vous sûr de vouloir 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            ""\n         ],\n         "Start a call": [\n            null,\n            "Démarrer un appel"\n         ],\n         "Contacts": [\n            null,\n            "Contacts"\n         ],\n         "Connecting": [\n            null,\n            "Connexion"\n         ],\n         "XMPP Username:": [\n            null,\n            "Nom d\'utilisateur XMPP/Jabber"\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         "user@server": [\n            null,\n            ""\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         "Save": [\n            null,\n            "Enregistrer"\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         "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            ""\n         ],\n         "Add": [\n            null,\n            "Ajouter"\n         ],\n         "Click to add new chat contacts": [\n            null,\n            "Cliquez po


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         "Personal message": [\n            null,\n            "הודעה אישית"\n         ],\n         "me": [\n            null,\n            "אני"\n         ],\n         "is typing": [\n            null,\n            "מקליד(ה) כעת"\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         "Connecting": [\n            null,\n            "כעת מתחבר"\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         "Save": [\n            null,\n            "שמור"\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 א<EFBFBD>


define('text!hu',[],function () { return '{\n   "domain": "converse",\n   "locale_data": {\n      "converse": {\n         "": {\n            "domain": "converse",\n            "lang": "hu"\n         },\n         "Close this chat box": [\n            null,\n            "A csevegés bezárása"\n         ],\n         "Personal message": [\n            null,\n            "Személyes üzenet"\n         ],\n         "me": [\n            null,\n            "Én"\n         ],\n         "is typing": [\n            null,\n            "gépel..."\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         "Hide the list of occupants": [\n            null,\n            "A résztvevők listájának elrejtése"\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         "Connecting": [\n            null,\n            "Kapcsolódás"\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         "Save": [\n            null,\n            "Ment"\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            nu


define('text!id',[],function () { return '{\n   "domain": "converse",\n   "locale_data": {\n      "converse": {\n         "": {\n            "domain": "converse",\n            "lang": "id"\n         },\n         "Personal message": [\n            null,\n            "Pesan pribadi"\n         ],\n         "me": [\n            null,\n            "saya"\n         ],\n         "is typing": [\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         "Hide the list of occupants": [\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         "Connecting": [\n            null,\n            "Menyambung"\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         "Save": [\n            null,\n            "Simpan"\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         "Attempting to reconnect": [\n            null,\n            ""\n         ],\n         "Error": [\n            null,\n            "Kesalahan"\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     


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         "Personal message": [\n            null,\n            "Messaggio personale"\n         ],\n         "me": [\n            null,\n            "me"\n         ],\n         "is typing": [\n            null,\n            "sta scrivendo"\n         ],\n         "has stopped typing": [\n            null,\n            "ha smesso di scrivere"\n         ],\n         "has gone away": [\n            null,\n            ""\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            ""\n         ],\n         "has gone offline": [\n            null,\n            ""\n         ],\n         "is busy": [\n            null,\n            "è occupato"\n         ],\n         "Clear all messages": [\n            null,\n            "Pulisci tutti i messaggi"\n         ],\n         "Hide the list of occupants": [\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            "Contatti"\n         ],\n         "Connecting": [\n            null,\n            "Connessione in corso"\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         "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         "Save": [\n            null,\n            "Salva"\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         "Add": [\n            null,\n            "Aggiungi"\n         ],\n         "Click to add new chat contacts": [\n            null,\n            "Clicca 


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         "Personal message": [\n            null,\n            "私信"\n         ],\n         "me": [\n            null,\n            "私"\n         ],\n         "is typing": [\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         "Hide the list of occupants": [\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         "Connecting": [\n            null,\n            "接続中です"\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         "Save": [\n            null,\n            "保存"\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         "Attempting to reconnect": [\n            null,\n            ""\n         ],\n         "Error": [\n            null,\n            "エラー"\n         ],\n         "Authenticating": [\n            null


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         "Personal message": [\n            null,\n            "Personlig melding"\n         ],\n         "me": [\n            null,\n            "meg"\n         ],\n         "is typing": [\n            null,\n            "skriver"\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         "Connecting": [\n            null,\n            "Kobler til"\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         "Save": [\n            null,\n            "Lagre"\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         "Click to hide


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         "Personal message": [\n            null,\n            "Persoonlijk bericht"\n         ],\n         "me": [\n            null,\n            "ikzelf"\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         "Hide the list of occupants": [\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         "Connecting": [\n            null,\n            "Verbinden"\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         "Save": [\n            null,\n            "Opslaan"\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         "Attempting to reconnect": [\n            null,\n            ""\n         ],\n         "Error": [\n            null,\n            "Error"\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"


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         "Personal message": [\n            null,\n            "Wiadomość osobista"\n         ],\n         "me": [\n            null,\n            "ja"\n         ],\n         "is typing": [\n            null,\n            "pisze"\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 wiadomość"\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         "Connecting": [\n            null,\n            "Łączę się"\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         "user@server": [\n            null,\n            "user@server"\n         ],\n         "password": [\n            null,\n            "hasło"\n         ],\n         "Sign in": [\n            null,\n            "Zarejestruj 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         "Save": [\n            null,\n            "Zachowaj"\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"\n         ],\n         "Contact name": [\n            null,\n            "Nazwa kontaktu"\n         ],\n         "Search": [\n            null,\n            "Szukaj"\n         ],\n         "Add": [\n            null,\n            "Dodaj"\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         "Personal message": [\n            null,\n            "Mensagem pessoal"\n         ],\n         "me": [\n            null,\n            "eu"\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         "Hide the list of occupants": [\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            "Contatos"\n         ],\n         "Connecting": [\n            null,\n            "Conectando"\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         "Save": [\n            null,\n            "Salvar"\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         "Attempting to reconnect": [\n            null,\n            ""\n         ],\n         "Error": [\n            null,\n            "Erro"\n         ],\n         "Authenticating": [\n            null,\n            "Autenticando"\n         ],\n         "Authentication Failed": [\n            null,\n            "Falha de autenticação"\n         ],\n         "Sorry, there 


define('text!ru',[],function () { return '{\n   "domain": "converse",\n   "locale_data": {\n      "converse": {\n         "": {\n            "domain": "converse",\n            "lang": "ru"\n         },\n         "Close this chat box": [\n            null,\n            "Закрыть это окно чата"\n         ],\n         "Personal message": [\n            null,\n            "Ваше сообщение"\n         ],\n         "me": [\n            null,\n            "Я"\n         ],\n         "is typing": [\n            null,\n            "набирает текст"\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         "Hide the list of occupants": [\n            null,\n            "Спрятать список участников"\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         "Connecting": [\n            null,\n            "Соединение"\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         "Save": [\n            null,\n            "Сохранить"\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         "Offl


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         "Personal message": [\n            null,\n            "Персональна вісточка"\n         ],\n         "me": [\n            null,\n            "я"\n         ],\n         "is typing": [\n            null,\n            "друкує"\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         "Connecting": [\n            null,\n            "Під\'єднуюсь"\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         "Save": [\n            null,\n            "Зберегти"\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


define('text!zh',[],function () { return '{\n   "domain": "converse",\n   "locale_data": {\n      "converse": {\n         "": {\n            "domain": "converse",\n            "lang": "zh"\n         },\n         "Personal message": [\n            null,\n            "私信"\n         ],\n         "me": [\n            null,\n            "我"\n         ],\n         "is typing": [\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         "Hide the list of occupants": [\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            "联系人"\n         ],\n         "Connecting": [\n            null,\n            "连接中"\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         "Save": [\n            null,\n            "保存"\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         "Attempting to reconnect": [\n            null,\n            ""\n         ],\n         "Error": [\n            null,\n            "错误"\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    

/*
 * 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
 */
(function (root, factory) {
    define("locales", ['jed',
        'text!af',
        'text!ca',
        'text!de',
        'text!en',
        '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 = {
                'af':     arguments[1],
                'ca':     arguments[2],
                'de':     arguments[3],
                'en':     arguments[4],
                'es':     arguments[5],
                'fr':     arguments[6],
                'he':     arguments[7],
                'hu':     arguments[8],
                'id':     arguments[9],
                'it':     arguments[10],
                'ja':     arguments[11],
                'nb':     arguments[12],
                'nl':     arguments[13],
                'pl':     arguments[14],
                'pt-br':  arguments[15],
                'ru':     arguments[16],
                'uk':     arguments[17],
                'zh':     arguments[18]
            };
            return root.locales;
        });
})(this);

// Converse.js (A browser based XMPP chat client)
// http://conversejs.org
//
// Copyright (c) 2012-2016, Jan-Carel Brand <jc@opkode.com>
// Licensed under the Mozilla Public License (MPLv2)
//
/*global Backbone, define */

(function (root, factory) {
    define("converse-chatview", ["converse-core", "converse-api"], factory);
}(this, function (converse, converse_api) {
    "use strict";
    var $ = converse_api.env.jQuery,
        utils = converse_api.env.utils,
        Strophe = converse_api.env.Strophe,
        $msg = converse_api.env.$msg,
        _ = converse_api.env._,
        __ = utils.__.bind(converse),
        moment = converse_api.env.moment;

    var KEY = {
        ENTER: 13,
        FORWARD_SLASH: 47
    };


    converse_api.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 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.
             */
            this.updateSettings({
                show_toolbar: true,
            });

            converse.ChatBoxView = Backbone.View.extend({
                length: 200,
                tagName: 'div',
                className: 'chatbox',
                is_chatroom: false,  // This is not a multi-user chatroom

                events: {
                    'click .close-chatbox-button': 'close',
                    'keypress textarea.chat-textarea': 'keyPressed',
                    '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().insertIntoDOM().hide();
                    // XXX: adding the event below to the events map above doesn't work.
                    // The code that gets executed because of that looks like this:
                    //      this.$el.on('scroll', '.chat-content', this.markScrolled.bind(this));
                    // Which for some reason doesn't work.
                    // So working around that fact here:
                    this.$el.find('.chat-content').on('scroll', this.markScrolled.bind(this));
                    converse.emit('chatBoxInitialized', this);
                },

                render: function () {
                    this.$el.attr('id', this.model.get('box_id'))
                        .html(converse.templates.chatbox(
                                _.extend(this.model.toJSON(), {
                                        show_toolbar: converse.show_toolbar,
                                        show_textarea: true,
                                        title: this.model.get('fullname'),
                                        unread_msgs: __('You have unread messages'),
                                        info_close: __('Close this chat box'),
                                        label_personal_message: __('Personal message')
                                    }
                                )
                            )
                        );
                    this.$content = this.$el.find('.chat-content');
                    this.renderToolbar().renderAvatar();
                    converse.emit('chatBoxOpened', this);
                    window.setTimeout(utils.refreshWebkit, 50);
                    return this.showStatusMessage();
                },

                afterMessagesFetched: function () {
                    // Provides a hook for plugins, such as converse-mam.
                    return;
                },

                fetchMessages: function () {
                    this.model.messages.fetch({
                        'add': true,
                        'success': this.afterMessagesFetched.bind(this)
                    });
                    return this;
                },

                insertIntoDOM: function () {
                    /* This method gets overridden in src/converse-controlbox.js if
                     * the controlbox plugin is active.
                     */
                    $('#conversejs').prepend(this.$el);
                    return this;
                },

                clearStatusNotification: function () {
                    this.$content.find('div.chat-event').remove();
                },

                showStatusNotification: function (message, keep_old) {
                    if (!keep_old) {
                        this.clearStatusNotification();
                    }
                    this.$content.append($('<div class="chat-info chat-event"></div>').text(message));
                    this.scrollDown();
                },

                addSpinner: function () {
                    if (!this.$content.first().hasClass('spinner')) {
                        this.$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, converse.templates.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 insert = prepend ? this.$content.prepend : this.$content.append;
                    _.compose(
                        this.scrollDownMessageHeight.bind(this),
                        function ($el) {
                            insert.call(this.$content, $el);
                            return $el;
                        }.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.children('.chat-message:first'),
                        first_msg_date = $first_msg.data('isodate'),
                        current_msg_date = moment(attrs.time) || moment,
                        last_msg_date = this.$content.children('.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.children('.chat-message'), function (el) {
                        return $(el).data('isodate');
                    });
                    msg_dates.push(current_msg_date);
                    msg_dates.sort();
                    idx = msg_dates.indexOf(current_msg_date)-1;
                    _.compose(
                            this.scrollDownMessageHeight.bind(this),
                            function ($el) {
                                $el.insertAfter(this.$content.find('.chat-message[data-isodate="'+msg_dates[idx]+'"]'));
                                return $el;
                            }.bind(this)
                        )(this.renderMessage(attrs));
                },

                getExtraMessageTemplateAttributes: function (attrs) {
                    // Provides a hook for sending more attributes to the
                    // message template.
                    return {};
                },

                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,
                        extra_classes = attrs.delayed && 'delayed' || '',
                        template, username;

                    if ((match) && (match[1] === 'me')) {
                        text = text.replace(/^\/me/, '');
                        template = converse.templates.action;
                        username = fullname;
                    } else  {
                        template = converse.templates.message;
                        username = attrs.sender === 'me' && __('me') || fullname;
                    }
                    this.$content.find('div.chat-event').remove();

                    // FIXME: leaky abstraction from MUC
                    if (this.is_chatroom && attrs.sender === 'them' && (new RegExp("\\b"+this.model.get('nick')+"\\b")).test(text)) {
                        // Add special class to mark groupchat messages in which we
                        // are mentioned.
                        extra_classes += ' mentioned';
                    }
                    return $(template(
                            _.extend(this.getExtraMessageTemplateAttributes(attrs), {
                                'msgid': attrs.msgid,
                                'sender': attrs.sender,
                                'time': msg_time.format('hh:mm'),
                                'isodate': msg_time.format(),
                                'username': username,
                                'message': '',
                                'extra_classes': extra_classes
                            })
                        )).children('.chat-msg-content').first().text(text)
                            .addHyperlinks()
                            .addEmoticons(converse.visible_toolbar_buttons.emoticons).parent();
                },

                showHelpMessages: function (msgs, type, spinner) {
                    var i, msgs_length = msgs.length;
                    for (i=0; i<msgs_length; i++) {
                        this.$content.append($('<div class="chat-'+(type||'info')+'">'+msgs[i]+'</div>'));
                    }
                    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) {
                        this.showStatusNotification(message.get('fullname')+' '+__('is typing'));
                        this.clear_status_timeout = window.setTimeout(this.clearStatusNotification.bind(this), 10000);
                    } else if (message.get('chat_state') === converse.PAUSED) {
                        this.showStatusNotification(message.get('fullname')+' '+__('has stopped typing'));
                    } else if (_.contains([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 (typeof this.clear_status_timeout !== 'undefined') {
                        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 (typeof this.chat_state_timeout !== 'undefined') {
                        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.val();
                        $textarea.val('').focus();
                        if (message !== '') {
                            // XXX: leaky abstraction from MUC
                            if (this.model.get('type') === 'chatroom') {
                                this.onChatRoomMessageSubmitted(message);
                            } else {
                                this.onMessageSubmitted(message);
                            }
                            converse.emit('messageSend', message);
                        }
                        this.setChatState(converse.ACTIVE);
                    // XXX: leaky abstraction from MUC
                    } else if (this.model.get('type') !== 'chatroom') { // chat state data is currently only for single user chat
                        // 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);
                    }
                },

                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 (typeof msg === "string") {
                        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();

                        this.model.destroy();
                    }
                    this.remove();
                    converse.emit('chatBoxClosed', this);
                    return this;
                },

                renderToolbar: function (options) {
                    if (!converse.show_toolbar) {
                        return;
                    }
                    options = _.extend(options || {}, {
                        label_clear: __('Clear all messages'),
                        label_hide_occupants: __('Hide the list of occupants'),
                        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,
                        // FIXME Leaky abstraction MUC
                        show_occupants_toggle: this.is_chatroom && converse.visible_toolbar_buttons.toggle_occupants
                    });
                    this.$el.find('.chat-toolbar').html(converse.templates.toolbar(_.extend(this.model.toJSON(), options || {})));
                    return this;
                },

                renderAvatar: function () {
                    if (!this.model.get('image')) {
                        return;
                    }
                    var img_src = 'data:'+this.model.get('image_type')+';base64,'+this.model.get('image'),
                        canvas = $('<canvas height="32px" width="32px" class="avatar"></canvas>').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, 32, 32*(1/ratio));
                        } else {
                            ctx.drawImage(img, 0,0, 32, 32*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.hide();
                    utils.refreshWebkit();
                    return this;
                },

                afterShown: function () {
                    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;
                    }
                    this.$el.fadeIn(this.afterShown.bind(this));
                },

                show: function (focus) {
                    if (typeof this.debouncedShow === 'undefined') {
                        /* 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, true);
                    }
                    this.debouncedShow.apply(this, arguments);
                    return this;
                },

                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(); }
                    var is_at_bottom = this.$content.scrollTop() + this.$content.innerHeight() >= this.$content[0].scrollHeight-10;
                    if (is_at_bottom) {
                        this.model.set('scrolled', false);
                        this.$el.find('.new-msgs-indicator').addClass('hidden');
                    } 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.set('scrolled', true);
                    }
                }, 150),


                viewUnreadMessages: function () {
                    this.model.set('scrolled', false);
                    this.scrollDown();
                },

                scrollDownMessageHeight: function ($message) {
                    if (this.$content.is(':visible') && !this.model.get('scrolled')) {
                        this.$content.scrollTop(this.$content.scrollTop() + $message[0].scrollHeight);
                    }
                    return this;
                },

                scrollDown: function () {
                    if (this.$content.is(':visible') && !this.model.get('scrolled')) {
                        this.$content.scrollTop(this.$content[0].scrollHeight);
                        this.$el.find('.new-msgs-indicator').addClass('hidden');
                    }
                    return this;
                }
            });
        }
    });
}));

// Converse.js (A browser based XMPP chat client)
// http://conversejs.org
//
// Copyright (c) 2012-2016, Jan-Carel Brand <jc@opkode.com>
// Licensed under the Mozilla Public License (MPLv2)
//
/*global Backbone, define */

(function (root, factory) {
    define("converse-rosterview", ["converse-core", "converse-api"], factory);
}(this, function (converse, converse_api) {
    "use strict";
    var $ = converse_api.env.jQuery,
        utils = converse_api.env.utils,
        Strophe = converse_api.env.Strophe,
        $iq = converse_api.env.$iq,
        b64_sha1 = converse_api.env.b64_sha1,
        _ = converse_api.env._,
        __ = utils.__.bind(converse);

    converse_api.plugins.add('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);
            },

            RosterGroups: {
                comparator: function () {
                    // RosterGroupsComparator only gets set later (once i18n is
                    // set up), so we need to wrap it in this nameless function.
                    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.
             */
            this.updateSettings({
                allow_chat_pending_contacts: false,
                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 = _.contains(special_groups, a);
                var b_is_special = _.contains(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",
                    "click .onX": "clearFilter",
                    "mousemove .x": "toggleX",
                    "change .filter-type": "changeTypeFilter",
                    "change .state-type": "changeChatStateFilter"
                },

                initialize: function () {
                    this.model.on('change', this.render, this);
                },

                render: function () {
                    this.$el.html(converse.templates.roster(
                        _.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')
                        })
                    ));
                    var $roster_filter = this.$('.roster-filter');
                    $roster_filter[this.tog($roster_filter.val())]('x');
                    return this.$el;
                },

                tog: function (v) {
                    return v?'addClass':'removeClass';
                },

                toggleX: function (ev) {
                    if (ev && ev.preventDefault) { ev.preventDefault(); }
                    var el = ev.target;
                    $(el)[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.$('.state-type').val()
                    });
                },

                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.$('.state-type').val()
                        });
                    } else {
                        this.model.save({
                            'filter_type': type,
                            'filter_text': this.$('.roster-filter').val(),
                        });
                    }
                },

                liveFilter: _.debounce(function (ev) {
                    if (ev && ev.preventDefault) { ev.preventDefault(); }
                    this.model.save({
                        'filter_type': this.$('.filter-type').val(),
                        'filter_text': this.$('.roster-filter').val()
                    });
                }, 250),

                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.$el.is(':visible')) { return this; }
                    if (this.$('.roster-filter').val().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);
                    this.$roster = $('<dl class="roster-contacts" style="display: none;"></dl>');
                    // 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();
                },

                render: function () {
                    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.addClass('no-contact-requests');
                    }
                    return this;
                },

                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 (this.$roster.parent().length === 0) {
                        this.$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;
                },

                fetch: function () {
                    this.model.fetch({
                        silent: true, // We use the success handler to handle groups that were added,
                                    // we need to first have all groups before positionFetchedGroups
                                    // will work properly.
                        success: function (collection, resp, options) {
                            if (collection.length !== 0) {
                                this.positionFetchedGroups(collection, resp, options);
                            }
                            converse.roster.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.roster.fetchFromServer(
                                                converse.xmppstatus.sendPresence.bind(converse.xmppstatus));
                                    } else {
                                        converse.emit('cachedRoster', collection);
                                        if (converse.send_initial_presence) {
                                            /* We're not going to fetch the roster again because we have
                                            * it already cached in sessionStorage, but we still need to
                                            * send out a presence stanza because this is a new session.
                                            * See: https://github.com/jcbrand/converse.js/issues/536
                                            */
                                            converse.xmppstatus.sendPresence();
                                        }
                                    }
                                }
                            });
                        }.bind(this)
                    });
                    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 (view.model.get('name').toLowerCase().indexOf(query.toLowerCase()) === -1) {
                                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.$roster = $('<dl class="roster-contacts" style="display: none;"></dl>');
                    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 (_.contains(['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 (model, resp, options) {
                    /* 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.
                     */
                    model.sort();
                    model.each(function (group, idx) {
                        var view = this.get(group.get('name'));
                        if (!view) {
                            view = new converse.RosterGroupView({model: group});
                            this.add(group.get('name'), view.render());
                        }
                        if (idx === 0) {
                            this.$roster.append(view.$el);
                        } else {
                            this.appendGroup(view);
                        }
                    }.bind(this));
                },

                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 () {
                    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 (this.el.className.indexOf(cls) !== -1) {
                                this.$el.removeClass(cls);
                            }
                        }, this);
                    this.$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.$el.addClass('pending-xmpp-contact');
                        this.$el.html(converse.templates.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.$el.addClass('requesting-xmpp-contact');
                        this.$el.html(converse.templates.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
                            })
                        ));
                        converse.controlboxtoggle.showControlBox();
                    } else if (subscription === 'both' || subscription === 'to') {
                        this.$el.addClass('current-xmpp-contact');
                        this.$el.removeClass(_.without(['both', 'to'], subscription)[0]).addClass(subscription);
                        this.$el.html(converse.templates.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 = converse.rosterview.model.where({'name': name})[0];
                    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.$el.attr('data-group', this.model.get('name'));
                    this.$el.html(
                        $(converse.templates.group_header({
                            label_group: this.model.get('name'),
                            desc_group_toggle: this.model.get('description'),
                            toggle_state: this.model.get('state')
                        }))
                    );
                    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 = _.contains(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();
                    }
                }
            });
        }
    });
}));

// Converse.js (A browser based XMPP chat client)
// http://conversejs.org
//
// Copyright (c) 2012-2016, Jan-Carel Brand <jc@opkode.com>
// Licensed under the Mozilla Public License (MPLv2)
//
/*global define, Backbone */

(function (root, factory) {
    define("converse-controlbox", [
            "converse-core",
            "converse-api",
            // TODO: The next two dependencies can be made optional
            "converse-rosterview",
            "converse-chatview"
    ], factory);
}(this, function (converse, converse_api) {
    "use strict";
    // Strophe methods for building stanzas
    var Strophe = converse_api.env.Strophe,
        utils = converse_api.env.utils;
    // Other necessary globals
    var $ = converse_api.env.jQuery,
        _ = converse_api.env._,
        __ = utils.__.bind(converse),
        moment = converse_api.env.moment;


    converse_api.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();
                }
            },

            onDisconnected: function () {
                var result = this._super.onDisconnected.apply(this, arguments);
                if (result === 'disconnected') {
                    var view = converse.chatboxviews.get('controlbox');
                    view.model.set({connected:false});
                    view.$('#controlbox-tabs').empty();
                    view.renderLoginPanel();
                }
                return result;
            },

            _tearDown: function () {
                this._super._tearDown.apply(this, arguments);
                if (this.rosterview) {
                    this.rosterview.unregisterHandlers();
                    // Removes roster groups
                    this.rosterview.model.off().reset();
                    this.rosterview.undelegateEvents().remove();
                }
            },

            clearSession: function () {
                this._super.clearSession.apply(this, arguments);
                if (typeof this.connection !== 'undefined' && 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) {
                    this._super.onChatBoxesFetched.apply(this, arguments);
                    if (!_.include(_.pluck(resp, 'id'), 'controlbox')) {
                        this.add({
                            id: 'controlbox',
                            box_id: 'controlbox'
                        });
                    }
                    this.get('controlbox').save({connected:true});
                },
            },

            ChatBoxViews: {
                onChatBoxAdded: function (item) {
                    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 () {
                    this.each(function (view) {
                        if (view.model.get('id') !== 'controlbox') {
                            view.close();
                        }
                    });
                    return this;
                },

                getChatBoxWidth: function (view) {
                    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 () {
                    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;
            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.initRoster();
                    }
                    if (typeof this.model.get('closed')==='undefined') {
                        this.model.set('closed', !converse.show_controlbox_by_default);
                    }
                    if (!this.model.get('closed')) {
                        this.show();
                    } else {
                        this.hide();
                    }
                },

                render: function () {
                    this.$el.html(converse.templates.controlbox(
                        _.extend(this.model.toJSON(), {
                            sticky_controlbox: converse.sticky_controlbox
                        }))
                    );
                    if (!converse.connection.connected || !converse.connection.authenticated || converse.connection.disconnecting) {
                        this.renderLoginPanel();
                    } else if (!this.contactspanel || !this.contactspanel.$el.is(':visible')) {
                        this.renderContactsPanel();
                    }
                    return this;
                },

                giveFeedback: function (message, klass) {
                    var $el = this.$('.conn-feedback');
                    $el.addClass('conn-feedback').text(message);
                    if (klass) {
                        $el.addClass(klass);
                    }
                },

                onConnected: function () {
                    if (this.model.get('connected')) {
                        this.render().initRoster();
                    }
                },

                initRoster: function () {
                    /* We initialize the roster, which will appear inside the
                     * Contacts Panel.
                     */
                    converse.rosterview = new converse.RosterView({model: converse.rostergroups});
                    this.contactspanel.$el.append(converse.rosterview.$el);
                    converse.rosterview.render().fetch().update();
                    return this;
                },

                renderLoginPanel: function () {
                    var $feedback = this.$('.conn-feedback'); // we want to still show any existing feedback.
                    this.loginpanel = new converse.LoginPanel({
                        '$parent': this.$el.find('.controlbox-panes'),
                        'model': this
                    });
                    this.loginpanel.render();
                    if ($feedback.length && $feedback.text() !== __('Connecting')) {
                        this.$('.conn-feedback').replaceWith($feedback);
                    }
                    return this;
                },

                renderContactsPanel: function () {
                    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) {
                        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.hide('fast', function () {
                        utils.refreshWebkit();
                        converse.emit('chatBoxClosed', this);
                        converse.controlboxtoggle.show(function () {
                            if (typeof callback === "function") {
                                callback();
                            }
                        });
                    });
                    return this;
                },

                onControlBoxToggleHidden: function () {
                    this.$el.show('fast', function () {
                        converse.controlboxtoggle.updateOnlineCount();
                        utils.refreshWebkit();
                        converse.emit('controlBoxOpened', this);
                    }.bind(this));
                },

                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')).hide();
                    $sibling.removeClass('current');
                    $tab.addClass('current');
                    $tab_panel.show();
                    return this;
                },

                showHelpMessages: function (msgs) {
                    // Override showHelpMessages in ChatBoxView, for now do nothing.
                    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(
                        converse.templates.login_panel({
                            'LOGIN': converse.LOGIN,
                            'ANONYMOUS': converse.ANONYMOUS,
                            '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.$tabs.append(converse.templates.login_tab({label_sign_in: __('Sign in')}));
                    this.$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)  {
                        errors = true;
                        $pw_input.addClass('error');
                    }
                    if (errors) { return; }
                    if (converse.locked_domain) {
                        jid = Strophe.escapeNode(jid) + '@' + converse.locked_domain;
                    } else if (converse.default_domain && jid.indexOf('@') === -1) {
                        jid = jid + '@' + converse.default_domain;
                    }
                    this.connect($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.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(converse.templates.choose_status());
                    this.$el.find('#fancy-xmpp-status-select')
                            .html(converse.templates.chat_status({
                                'status_message': this.model.get('status_message') || __("I am %1$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(converse.templates.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 = this.model.get('status') || 'offline';
                    var input = converse.templates.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(
                        converse.templates.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 = converse.templates.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
                    });
                    this.$tabs.append(converse.templates.contacts_tab({label_contacts: LABEL_CONTACTS}));
                    if (converse.xhr_user_search) {
                        markup = converse.templates.search_contact({
                            label_contact_name: __('Contact name'),
                            label_search: __('Search')
                        });
                    } else {
                        markup = converse.templates.add_contact_form({
                            label_contact_username: __('e.g. user@example.org'),
                            label_add: __('Add')
                        });
                    }
                    if (converse.allow_contact_requests) {
                        widgets += converse.templates.add_contact_dropdown({
                            label_click_to_chat: __('Click to add new chat contacts'),
                            label_add_contact: __('Add a contact')
                        });
                    }
                    this.$el.html(widgets);
                    this.$el.find('.search-xmpp ul').append(markup);
                    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',
                id: 'toggle-controlbox',
                events: {
                    'click': 'onClick'
                },
                attributes: {
                    'href': "#"
                },

                initialize: function () {
                    this.render();
                    this.updateOnlineCount();
                    converse.on('initialized', function () {
                        converse.roster.on("add", this.updateOnlineCount, this);
                        converse.roster.on('change', this.updateOnlineCount, this);
                        converse.roster.on("destroy", this.updateOnlineCount, this);
                        converse.roster.on("remove", this.updateOnlineCount, this);
                    }.bind(this));
                },

                render: function () {
                    $('#conversejs').prepend(this.$el.html(
                        converse.templates.controlbox_toggle({
                            'label_toggle': __('Toggle chat')
                        })
                    ));
                    // 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).
                    this.$el.hide();
                    return this;
                },

                updateOnlineCount: _.debounce(function () {
                    if (typeof converse.roster === 'undefined') {
                        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.fadeOut('fast', callback);
                },

                show: function (callback) {
                    this.$el.show('fast', 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();
                    }
                }
            });
        }
    });
}));

/*!
 * typeahead.js 0.10.5
 * https://github.com/twitter/typeahead.js
 * Copyright 2013-2014 Twitter, Inc. and other contributors; Licensed MIT
 */

(function (root, factory) {
    if (typeof define === 'function' && define.amd) {
        // AMD. Register as an anonymous module.
        define('typeahead',['jquery'], function ($) {
            factory($, root);
        });
    } else {
        // Browser globals
        factory(jQuery, root);
    }
}(this, function($, window) {
    var _ = function() {
        "use strict";
        return {
            isMsie: function() {
                return /(msie|trident)/i.test(navigator.userAgent) ? navigator.userAgent.match(/(msie |rv:)(\d+(.\d+)?)/i)[2] : false;
            },
            isBlankString: function(str) {
                return !str || /^\s*$/.test(str);
            },
            escapeRegExChars: function(str) {
                return str.replace(/[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g, "\\$&");
            },
            isString: function(obj) {
                return typeof obj === "string";
            },
            isNumber: function(obj) {
                return typeof obj === "number";
            },
            isArray: $.isArray,
            isFunction: $.isFunction,
            isObject: $.isPlainObject,
            isUndefined: function(obj) {
                return typeof obj === "undefined";
            },
            toStr: function toStr(s) {
                return _.isUndefined(s) || s === null ? "" : s + "";
            },
            bind: $.proxy,
            each: function(collection, cb) {
                $.each(collection, reverseArgs);
                function reverseArgs(index, value) {
                    return cb(value, index);
                }
            },
            map: $.map,
            filter: $.grep,
            every: function(obj, test) {
                var result = true;
                if (!obj) {
                    return result;
                }
                $.each(obj, function(key, val) {
                    if (!(result = test.call(null, val, key, obj))) {
                        return false;
                    }
                });
                return !!result;
            },
            some: function(obj, test) {
                var result = false;
                if (!obj) {
                    return result;
                }
                $.each(obj, function(key, val) {
                    if (result = test.call(null, val, key, obj)) {
                        return false;
                    }
                });
                return !!result;
            },
            mixin: $.extend,
            getUniqueId: function() {
                var counter = 0;
                return function() {
                    return counter++;
                };
            }(),
            templatify: function templatify(obj) {
                return $.isFunction(obj) ? obj : template;
                function template() {
                    return String(obj);
                }
            },
            defer: function(fn) {
                setTimeout(fn, 0);
            },
            debounce: function(func, wait, immediate) {
                var timeout, result;
                return function() {
                    var context = this, args = arguments, later, callNow;
                    later = function() {
                        timeout = null;
                        if (!immediate) {
                            result = func.apply(context, args);
                        }
                    };
                    callNow = immediate && !timeout;
                    clearTimeout(timeout);
                    timeout = setTimeout(later, wait);
                    if (callNow) {
                        result = func.apply(context, args);
                    }
                    return result;
                };
            },
            throttle: function(func, wait) {
                var context, args, timeout, result, previous, later;
                previous = 0;
                later = function() {
                    previous = new Date();
                    timeout = null;
                    result = func.apply(context, args);
                };
                return function() {
                    var now = new Date(), remaining = wait - (now - previous);
                    context = this;
                    args = arguments;
                    if (remaining <= 0) {
                        clearTimeout(timeout);
                        timeout = null;
                        previous = now;
                        result = func.apply(context, args);
                    } else if (!timeout) {
                        timeout = setTimeout(later, remaining);
                    }
                    return result;
                };
            },
            noop: function() {}
        };
    }();
    var html = function() {
        return {
            wrapper: '<span class="twitter-typeahead"></span>',
            dropdown: '<span class="tt-dropdown-menu"></span>',
            dataset: '<div class="tt-dataset-%CLASS%"></div>',
            suggestions: '<span class="tt-suggestions"></span>',
            suggestion: '<div class="tt-suggestion"></div>'
        };
    }();
    var css = function() {
        "use strict";
        var css = {
            wrapper: {
                position: "relative",
                display: "inline-block"
            },
            hint: {
                position: "absolute",
                top: "0",
                left: "0",
                borderColor: "transparent",
                boxShadow: "none",
                opacity: "1"
            },
            input: {
                position: "relative",
                verticalAlign: "top",
                backgroundColor: "transparent"
            },
            inputWithNoHint: {
                position: "relative",
                verticalAlign: "top"
            },
            dropdown: {
                position: "absolute",
                top: "100%",
                left: "0",
                zIndex: "100",
                display: "none"
            },
            suggestions: {
                display: "block"
            },
            suggestion: {
                whiteSpace: "nowrap",
                cursor: "pointer"
            },
            suggestionChild: {
                whiteSpace: "normal"
            },
            ltr: {
                left: "0",
                right: "auto"
            },
            rtl: {
                left: "auto",
                right: " 0"
            }
        };
        if (_.isMsie()) {
            _.mixin(css.input, {
                backgroundImage: "url(data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)"
            });
        }
        if (_.isMsie() && _.isMsie() <= 7) {
            _.mixin(css.input, {
                marginTop: "-1px"
            });
        }
        return css;
    }();
    var EventBus = function() {
        "use strict";
        var namespace = "typeahead:";
        function EventBus(o) {
            if (!o || !o.el) {
                $.error("EventBus initialized without el");
            }
            this.$el = $(o.el);
        }
        _.mixin(EventBus.prototype, {
            trigger: function(type) {
                var args = [].slice.call(arguments, 1);
                this.$el.trigger(namespace + type, args);
            }
        });
        return EventBus;
    }();
    var EventEmitter = function() {
        "use strict";
        var splitter = /\s+/, nextTick = getNextTick();
        return {
            onSync: onSync,
            onAsync: onAsync,
            off: off,
            trigger: trigger
        };
        function on(method, types, cb, context) {
            var type;
            if (!cb) {
                return this;
            }
            types = types.split(splitter);
            cb = context ? bindContext(cb, context) : cb;
            this._callbacks = this._callbacks || {};
            while (type = types.shift()) {
                this._callbacks[type] = this._callbacks[type] || {
                    sync: [],
                    async: []
                };
                this._callbacks[type][method].push(cb);
            }
            return this;
        }
        function onAsync(types, cb, context) {
            return on.call(this, "async", types, cb, context);
        }
        function onSync(types, cb, context) {
            return on.call(this, "sync", types, cb, context);
        }
        function off(types) {
            var type;
            if (!this._callbacks) {
                return this;
            }
            types = types.split(splitter);
            while (type = types.shift()) {
                delete this._callbacks[type];
            }
            return this;
        }
        function trigger(types) {
            var type, callbacks, args, syncFlush, asyncFlush;
            if (!this._callbacks) {
                return this;
            }
            types = types.split(splitter);
            args = [].slice.call(arguments, 1);
            while ((type = types.shift()) && (callbacks = this._callbacks[type])) {
                syncFlush = getFlush(callbacks.sync, this, [ type ].concat(args));
                asyncFlush = getFlush(callbacks.async, this, [ type ].concat(args));
                syncFlush() && nextTick(asyncFlush);
            }
            return this;
        }
        function getFlush(callbacks, context, args) {
            return flush;
            function flush() {
                var cancelled;
                for (var i = 0, len = callbacks.length; !cancelled && i < len; i += 1) {
                    cancelled = callbacks[i].apply(context, args) === false;
                }
                return !cancelled;
            }
        }
        function getNextTick() {
            var nextTickFn;
            if (window.setImmediate) {
                nextTickFn = function nextTickSetImmediate(fn) {
                    setImmediate(function() {
                        fn();
                    });
                };
            } else {
                nextTickFn = function nextTickSetTimeout(fn) {
                    setTimeout(function() {
                        fn();
                    }, 0);
                };
            }
            return nextTickFn;
        }
        function bindContext(fn, context) {
            return fn.bind ? fn.bind(context) : function() {
                fn.apply(context, [].slice.call(arguments, 0));
            };
        }
    }();
    var highlight = function(doc) {
        "use strict";
        var defaults = {
            node: null,
            pattern: null,
            tagName: "strong",
            className: null,
            wordsOnly: false,
            caseSensitive: false
        };
        return function hightlight(o) {
            var regex;
            o = _.mixin({}, defaults, o);
            if (!o.node || !o.pattern) {
                return;
            }
            o.pattern = _.isArray(o.pattern) ? o.pattern : [ o.pattern ];
            regex = getRegex(o.pattern, o.caseSensitive, o.wordsOnly);
            traverse(o.node, hightlightTextNode);
            function hightlightTextNode(textNode) {
                var match, patternNode, wrapperNode;
                if (match = regex.exec(textNode.data)) {
                    wrapperNode = doc.createElement(o.tagName);
                    o.className && (wrapperNode.className = o.className);
                    patternNode = textNode.splitText(match.index);
                    patternNode.splitText(match[0].length);
                    wrapperNode.appendChild(patternNode.cloneNode(true));
                    textNode.parentNode.replaceChild(wrapperNode, patternNode);
                }
                return !!match;
            }
            function traverse(el, hightlightTextNode) {
                var childNode, TEXT_NODE_TYPE = 3;
                for (var i = 0; i < el.childNodes.length; i++) {
                    childNode = el.childNodes[i];
                    if (childNode.nodeType === TEXT_NODE_TYPE) {
                        i += hightlightTextNode(childNode) ? 1 : 0;
                    } else {
                        traverse(childNode, hightlightTextNode);
                    }
                }
            }
        };
        function getRegex(patterns, caseSensitive, wordsOnly) {
            var escapedPatterns = [], regexStr;
            for (var i = 0, len = patterns.length; i < len; i++) {
                escapedPatterns.push(_.escapeRegExChars(patterns[i]));
            }
            regexStr = wordsOnly ? "\\b(" + escapedPatterns.join("|") + ")\\b" : "(" + escapedPatterns.join("|") + ")";
            return caseSensitive ? new RegExp(regexStr) : new RegExp(regexStr, "i");
        }
    }(window.document);
    var Input = function() {
        "use strict";
        var specialKeyCodeMap;
        specialKeyCodeMap = {
            9: "tab",
            27: "esc",
            37: "left",
            39: "right",
            13: "enter",
            38: "up",
            40: "down"
        };
        function Input(o) {
            var that = this, onBlur, onFocus, onKeydown, onInput;
            o = o || {};
            if (!o.input) {
                $.error("input is missing");
            }
            onBlur = _.bind(this._onBlur, this);
            onFocus = _.bind(this._onFocus, this);
            onKeydown = _.bind(this._onKeydown, this);
            onInput = _.bind(this._onInput, this);
            this.$hint = $(o.hint);
            this.$input = $(o.input).on("blur.tt", onBlur).on("focus.tt", onFocus).on("keydown.tt", onKeydown);
            if (this.$hint.length === 0) {
                this.setHint = this.getHint = this.clearHint = this.clearHintIfInvalid = _.noop;
            }
            if (!_.isMsie()) {
                this.$input.on("input.tt", onInput);
            } else {
                this.$input.on("keydown.tt keypress.tt cut.tt paste.tt", function($e) {
                    if (specialKeyCodeMap[$e.which || $e.keyCode]) {
                        return;
                    }
                    _.defer(_.bind(that._onInput, that, $e));
                });
            }
            this.query = this.$input.val();
            this.$overflowHelper = buildOverflowHelper(this.$input);
        }
        Input.normalizeQuery = function(str) {
            return (str || "").replace(/^\s*/g, "").replace(/\s{2,}/g, " ");
        };
        _.mixin(Input.prototype, EventEmitter, {
            _onBlur: function onBlur() {
                this.resetInputValue();
                this.trigger("blurred");
            },
            _onFocus: function onFocus() {
                this.trigger("focused");
            },
            _onKeydown: function onKeydown($e) {
                var keyName = specialKeyCodeMap[$e.which || $e.keyCode];
                this._managePreventDefault(keyName, $e);
                if (keyName && this._shouldTrigger(keyName, $e)) {
                    this.trigger(keyName + "Keyed", $e);
                }
            },
            _onInput: function onInput() {
                this._checkInputValue();
            },
            _managePreventDefault: function managePreventDefault(keyName, $e) {
                var preventDefault, hintValue, inputValue;
                switch (keyName) {
                  case "tab":
                    hintValue = this.getHint();
                    inputValue = this.getInputValue();
                    preventDefault = hintValue && hintValue !== inputValue && !withModifier($e);
                    break;

                  case "up":
                  case "down":
                    preventDefault = !withModifier($e);
                    break;

                  default:
                    preventDefault = false;
                }
                preventDefault && $e.preventDefault();
            },
            _shouldTrigger: function shouldTrigger(keyName, $e) {
                var trigger;
                switch (keyName) {
                  case "tab":
                    trigger = !withModifier($e);
                    break;

                  default:
                    trigger = true;
                }
                return trigger;
            },
            _checkInputValue: function checkInputValue() {
                var inputValue, areEquivalent, hasDifferentWhitespace;
                inputValue = this.getInputValue();
                areEquivalent = areQueriesEquivalent(inputValue, this.query);
                hasDifferentWhitespace = areEquivalent ? this.query.length !== inputValue.length : false;
                this.query = inputValue;
                if (!areEquivalent) {
                    this.trigger("queryChanged", this.query);
                } else if (hasDifferentWhitespace) {
                    this.trigger("whitespaceChanged", this.query);
                }
            },
            focus: function focus() {
                this.$input.focus();
            },
            blur: function blur() {
                this.$input.blur();
            },
            getQuery: function getQuery() {
                return this.query;
            },
            setQuery: function setQuery(query) {
                this.query = query;
            },
            getInputValue: function getInputValue() {
                return this.$input.val();
            },
            setInputValue: function setInputValue(value, silent) {
                this.$input.val(value);
                silent ? this.clearHint() : this._checkInputValue();
            },
            resetInputValue: function resetInputValue() {
                this.setInputValue(this.query, true);
            },
            getHint: function getHint() {
                return this.$hint.val();
            },
            setHint: function setHint(value) {
                this.$hint.val(value);
            },
            clearHint: function clearHint() {
                this.setHint("");
            },
            clearHintIfInvalid: function clearHintIfInvalid() {
                var val, hint, valIsPrefixOfHint, isValid;
                val = this.getInputValue();
                hint = this.getHint();
                valIsPrefixOfHint = val !== hint && hint.indexOf(val) === 0;
                isValid = val !== "" && valIsPrefixOfHint && !this.hasOverflow();
                !isValid && this.clearHint();
            },
            getLanguageDirection: function getLanguageDirection() {
                return (this.$input.css("direction") || "ltr").toLowerCase();
            },
            hasOverflow: function hasOverflow() {
                var constraint = this.$input.width() - 2;
                this.$overflowHelper.text(this.getInputValue());
                return this.$overflowHelper.width() >= constraint;
            },
            isCursorAtEnd: function() {
                var valueLength, selectionStart, range;
                valueLength = this.$input.val().length;
                selectionStart = this.$input[0].selectionStart;
                if (_.isNumber(selectionStart)) {
                    return selectionStart === valueLength;
                } else if (document.selection) {
                    range = document.selection.createRange();
                    range.moveStart("character", -valueLength);
                    return valueLength === range.text.length;
                }
                return true;
            },
            destroy: function destroy() {
                this.$hint.off(".tt");
                this.$input.off(".tt");
                this.$hint = this.$input = this.$overflowHelper = null;
            }
        });
        return Input;
        function buildOverflowHelper($input) {
            return $('<pre aria-hidden="true"></pre>').css({
                position: "absolute",
                visibility: "hidden",
                whiteSpace: "pre",
                fontFamily: $input.css("font-family"),
                fontSize: $input.css("font-size"),
                fontStyle: $input.css("font-style"),
                fontVariant: $input.css("font-variant"),
                fontWeight: $input.css("font-weight"),
                wordSpacing: $input.css("word-spacing"),
                letterSpacing: $input.css("letter-spacing"),
                textIndent: $input.css("text-indent"),
                textRendering: $input.css("text-rendering"),
                textTransform: $input.css("text-transform")
            }).insertAfter($input);
        }
        function areQueriesEquivalent(a, b) {
            return Input.normalizeQuery(a) === Input.normalizeQuery(b);
        }
        function withModifier($e) {
            return $e.altKey || $e.ctrlKey || $e.metaKey || $e.shiftKey;
        }
    }();
    var Dataset = function() {
        "use strict";
        var datasetKey = "ttDataset", valueKey = "ttValue", datumKey = "ttDatum";
        function Dataset(o) {
            o = o || {};
            o.templates = o.templates || {};
            if (!o.source) {
                $.error("missing source");
            }
            if (o.name && !isValidName(o.name)) {
                $.error("invalid dataset name: " + o.name);
            }
            this.query = null;
            this.highlight = !!o.highlight;
            this.name = o.name || _.getUniqueId();
            this.source = o.source;
            this.displayFn = getDisplayFn(o.display || o.displayKey);
            this.templates = getTemplates(o.templates, this.displayFn);
            this.$el = $(html.dataset.replace("%CLASS%", this.name));
        }
        Dataset.extractDatasetName = function extractDatasetName(el) {
            return $(el).data(datasetKey);
        };
        Dataset.extractValue = function extractDatum(el) {
            return $(el).data(valueKey);
        };
        Dataset.extractDatum = function extractDatum(el) {
            return $(el).data(datumKey);
        };
        _.mixin(Dataset.prototype, EventEmitter, {
            _render: function render(query, suggestions) {
                if (!this.$el) {
                    return;
                }
                var that = this, hasSuggestions;
                this.$el.empty();
                hasSuggestions = suggestions && suggestions.length;
                if (!hasSuggestions && this.templates.empty) {
                    this.$el.html(getEmptyHtml()).prepend(that.templates.header ? getHeaderHtml() : null).append(that.templates.footer ? getFooterHtml() : null);
                } else if (hasSuggestions) {
                    this.$el.html(getSuggestionsHtml()).prepend(that.templates.header ? getHeaderHtml() : null).append(that.templates.footer ? getFooterHtml() : null);
                }
                this.trigger("rendered");
                function getEmptyHtml() {
                    return that.templates.empty({
                        query: query,
                        isEmpty: true
                    });
                }
                function getSuggestionsHtml() {
                    var $suggestions, nodes;
                    $suggestions = $(html.suggestions).css(css.suggestions);
                    nodes = _.map(suggestions, getSuggestionNode);
                    $suggestions.append.apply($suggestions, nodes);
                    that.highlight && highlight({
                        className: "tt-highlight",
                        node: $suggestions[0],
                        pattern: query
                    });
                    return $suggestions;
                    function getSuggestionNode(suggestion) {
                        var $el;
                        $el = $(html.suggestion).append(that.templates.suggestion(suggestion)).data(datasetKey, that.name).data(valueKey, that.displayFn(suggestion)).data(datumKey, suggestion);
                        $el.children().each(function() {
                            $(this).css(css.suggestionChild);
                        });
                        return $el;
                    }
                }
                function getHeaderHtml() {
                    return that.templates.header({
                        query: query,
                        isEmpty: !hasSuggestions
                    });
                }
                function getFooterHtml() {
                    return that.templates.footer({
                        query: query,
                        isEmpty: !hasSuggestions
                    });
                }
            },
            getRoot: function getRoot() {
                return this.$el;
            },
            update: function update(query) {
                var that = this;
                this.query = query;
                this.canceled = false;
                this.source(query, render);
                function render(suggestions) {
                    if (!that.canceled && query === that.query) {
                        that._render(query, suggestions);
                    }
                }
            },
            cancel: function cancel() {
                this.canceled = true;
            },
            clear: function clear() {
                this.cancel();
                this.$el.empty();
                this.trigger("rendered");
            },
            isEmpty: function isEmpty() {
                return this.$el.is(":empty");
            },
            destroy: function destroy() {
                this.$el = null;
            }
        });
        return Dataset;
        function getDisplayFn(display) {
            display = display || "value";
            return _.isFunction(display) ? display : displayFn;
            function displayFn(obj) {
                return obj[display];
            }
        }
        function getTemplates(templates, displayFn) {
            return {
                empty: templates.empty && _.templatify(templates.empty),
                header: templates.header && _.templatify(templates.header),
                footer: templates.footer && _.templatify(templates.footer),
                suggestion: templates.suggestion || suggestionTemplate
            };
            function suggestionTemplate(context) {
                return "<p>" + displayFn(context) + "</p>";
            }
        }
        function isValidName(str) {
            return /^[_a-zA-Z0-9-]+$/.test(str);
        }
    }();
    var Dropdown = function() {
        "use strict";
        function Dropdown(o) {
            var that = this, onSuggestionClick, onSuggestionMouseEnter, onSuggestionMouseLeave;
            o = o || {};
            if (!o.menu) {
                $.error("menu is required");
            }
            this.isOpen = false;
            this.isEmpty = true;
            this.datasets = _.map(o.datasets, initializeDataset);
            onSuggestionClick = _.bind(this._onSuggestionClick, this);
            onSuggestionMouseEnter = _.bind(this._onSuggestionMouseEnter, this);
            onSuggestionMouseLeave = _.bind(this._onSuggestionMouseLeave, this);
            this.$menu = $(o.menu).on("click.tt", ".tt-suggestion", onSuggestionClick).on("mouseenter.tt", ".tt-suggestion", onSuggestionMouseEnter).on("mouseleave.tt", ".tt-suggestion", onSuggestionMouseLeave);
            _.each(this.datasets, function(dataset) {
                that.$menu.append(dataset.getRoot());
                dataset.onSync("rendered", that._onRendered, that);
            });
        }
        _.mixin(Dropdown.prototype, EventEmitter, {
            _onSuggestionClick: function onSuggestionClick($e) {
                this.trigger("suggestionClicked", $($e.currentTarget));
            },
            _onSuggestionMouseEnter: function onSuggestionMouseEnter($e) {
                this._removeCursor();
                this._setCursor($($e.currentTarget), true);
            },
            _onSuggestionMouseLeave: function onSuggestionMouseLeave() {
                this._removeCursor();
            },
            _onRendered: function onRendered() {
                this.isEmpty = _.every(this.datasets, isDatasetEmpty);
                this.isEmpty ? this._hide() : this.isOpen && this._show();
                this.trigger("datasetRendered");
                function isDatasetEmpty(dataset) {
                    return dataset.isEmpty();
                }
            },
            _hide: function() {
                this.$menu.hide();
            },
            _show: function() {
                this.$menu.css("display", "block");
            },
            _getSuggestions: function getSuggestions() {
                return this.$menu.find(".tt-suggestion");
            },
            _getCursor: function getCursor() {
                return this.$menu.find(".tt-cursor").first();
            },
            _setCursor: function setCursor($el, silent) {
                $el.first().addClass("tt-cursor");
                !silent && this.trigger("cursorMoved");
            },
            _removeCursor: function removeCursor() {
                this._getCursor().removeClass("tt-cursor");
            },
            _moveCursor: function moveCursor(increment) {
                var $suggestions, $oldCursor, newCursorIndex, $newCursor;
                if (!this.isOpen) {
                    return;
                }
                $oldCursor = this._getCursor();
                $suggestions = this._getSuggestions();
                this._removeCursor();
                newCursorIndex = $suggestions.index($oldCursor) + increment;
                newCursorIndex = (newCursorIndex + 1) % ($suggestions.length + 1) - 1;
                if (newCursorIndex === -1) {
                    this.trigger("cursorRemoved");
                    return;
                } else if (newCursorIndex < -1) {
                    newCursorIndex = $suggestions.length - 1;
                }
                this._setCursor($newCursor = $suggestions.eq(newCursorIndex));
                this._ensureVisible($newCursor);
            },
            _ensureVisible: function ensureVisible($el) {
                var elTop, elBottom, menuScrollTop, menuHeight;
                elTop = $el.position().top;
                elBottom = elTop + $el.outerHeight(true);
                menuScrollTop = this.$menu.scrollTop();
                menuHeight = this.$menu.height() + parseInt(this.$menu.css("paddingTop"), 10) + parseInt(this.$menu.css("paddingBottom"), 10);
                if (elTop < 0) {
                    this.$menu.scrollTop(menuScrollTop + elTop);
                } else if (menuHeight < elBottom) {
                    this.$menu.scrollTop(menuScrollTop + (elBottom - menuHeight));
                }
            },
            close: function close() {
                if (this.isOpen) {
                    this.isOpen = false;
                    this._removeCursor();
                    this._hide();
                    this.trigger("closed");
                }
            },
            open: function open() {
                if (!this.isOpen) {
                    this.isOpen = true;
                    !this.isEmpty && this._show();
                    this.trigger("opened");
                }
            },
            setLanguageDirection: function setLanguageDirection(dir) {
                this.$menu.css(dir === "ltr" ? css.ltr : css.rtl);
            },
            moveCursorUp: function moveCursorUp() {
                this._moveCursor(-1);
            },
            moveCursorDown: function moveCursorDown() {
                this._moveCursor(+1);
            },
            getDatumForSuggestion: function getDatumForSuggestion($el) {
                var datum = null;
                if ($el.length) {
                    datum = {
                        raw: Dataset.extractDatum($el),
                        value: Dataset.extractValue($el),
                        datasetName: Dataset.extractDatasetName($el)
                    };
                }
                return datum;
            },
            getDatumForCursor: function getDatumForCursor() {
                return this.getDatumForSuggestion(this._getCursor().first());
            },
            getDatumForTopSuggestion: function getDatumForTopSuggestion() {
                return this.getDatumForSuggestion(this._getSuggestions().first());
            },
            update: function update(query) {
                _.each(this.datasets, updateDataset);
                function updateDataset(dataset) {
                    dataset.update(query);
                }
            },
            empty: function empty() {
                _.each(this.datasets, clearDataset);
                this.isEmpty = true;
                function clearDataset(dataset) {
                    dataset.clear();
                }
            },
            isVisible: function isVisible() {
                return this.isOpen && !this.isEmpty;
            },
            destroy: function destroy() {
                this.$menu.off(".tt");
                this.$menu = null;
                _.each(this.datasets, destroyDataset);
                function destroyDataset(dataset) {
                    dataset.destroy();
                }
            }
        });
        return Dropdown;
        function initializeDataset(oDataset) {
            return new Dataset(oDataset);
        }
    }();
    var Typeahead = function() {
        "use strict";
        var attrsKey = "ttAttrs";
        function Typeahead(o) {
            var $menu, $input, $hint;
            o = o || {};
            if (!o.input) {
                $.error("missing input");
            }
            this.isActivated = false;
            this.autoselect = !!o.autoselect;
            this.minLength = _.isNumber(o.minLength) ? o.minLength : 1;
            this.$node = buildDom(o.input, o.withHint);
            $menu = this.$node.find(".tt-dropdown-menu");
            $input = this.$node.find(".tt-input");
            $hint = this.$node.find(".tt-hint");
            $input.on("blur.tt", function($e) {
                var active, isActive, hasActive;
                active = document.activeElement;
                isActive = $menu.is(active);
                hasActive = $menu.has(active).length > 0;
                if (_.isMsie() && (isActive || hasActive)) {
                    $e.preventDefault();
                    $e.stopImmediatePropagation();
                    _.defer(function() {
                        $input.focus();
                    });
                }
            });
            $menu.on("mousedown.tt", function($e) {
                $e.preventDefault();
            });
            this.eventBus = o.eventBus || new EventBus({
                el: $input
            });
            this.dropdown = new Dropdown({
                menu: $menu,
                datasets: o.datasets
            }).onSync("suggestionClicked", this._onSuggestionClicked, this).onSync("cursorMoved", this._onCursorMoved, this).onSync("cursorRemoved", this._onCursorRemoved, this).onSync("opened", this._onOpened, this).onSync("closed", this._onClosed, this).onAsync("datasetRendered", this._onDatasetRendered, this);
            this.input = new Input({
                input: $input,
                hint: $hint
            }).onSync("focused", this._onFocused, this).onSync("blurred", this._onBlurred, this).onSync("enterKeyed", this._onEnterKeyed, this).onSync("tabKeyed", this._onTabKeyed, this).onSync("escKeyed", this._onEscKeyed, this).onSync("upKeyed", this._onUpKeyed, this).onSync("downKeyed", this._onDownKeyed, this).onSync("leftKeyed", this._onLeftKeyed, this).onSync("rightKeyed", this._onRightKeyed, this).onSync("queryChanged", this._onQueryChanged, this).onSync("whitespaceChanged", this._onWhitespaceChanged, this);
            this._setLanguageDirection();
        }
        _.mixin(Typeahead.prototype, {
            _onSuggestionClicked: function onSuggestionClicked(type, $el) {
                var datum;
                if (datum = this.dropdown.getDatumForSuggestion($el)) {
                    this._select(datum);
                }
            },
            _onCursorMoved: function onCursorMoved() {
                var datum = this.dropdown.getDatumForCursor();
                this.input.setInputValue(datum.value, true);
                this.eventBus.trigger("cursorchanged", datum.raw, datum.datasetName);
            },
            _onCursorRemoved: function onCursorRemoved() {
                this.input.resetInputValue();
                this._updateHint();
            },
            _onDatasetRendered: function onDatasetRendered() {
                this._updateHint();
            },
            _onOpened: function onOpened() {
                this._updateHint();
                this.eventBus.trigger("opened");
            },
            _onClosed: function onClosed() {
                this.input.clearHint();
                this.eventBus.trigger("closed");
            },
            _onFocused: function onFocused() {
                this.isActivated = true;
                this.dropdown.open();
            },
            _onBlurred: function onBlurred() {
                this.isActivated = false;
                this.dropdown.empty();
                this.dropdown.close();
            },
            _onEnterKeyed: function onEnterKeyed(type, $e) {
                var cursorDatum, topSuggestionDatum;
                cursorDatum = this.dropdown.getDatumForCursor();
                topSuggestionDatum = this.dropdown.getDatumForTopSuggestion();
                if (cursorDatum) {
                    this._select(cursorDatum);
                    $e.preventDefault();
                } else if (this.autoselect && topSuggestionDatum) {
                    this._select(topSuggestionDatum);
                    $e.preventDefault();
                }
            },
            _onTabKeyed: function onTabKeyed(type, $e) {
                var datum;
                if (datum = this.dropdown.getDatumForCursor()) {
                    this._select(datum);
                    $e.preventDefault();
                } else {
                    this._autocomplete(true);
                }
            },
            _onEscKeyed: function onEscKeyed() {
                this.dropdown.close();
                this.input.resetInputValue();
            },
            _onUpKeyed: function onUpKeyed() {
                var query = this.input.getQuery();
                this.dropdown.isEmpty && query.length >= this.minLength ? this.dropdown.update(query) : this.dropdown.moveCursorUp();
                this.dropdown.open();
            },
            _onDownKeyed: function onDownKeyed() {
                var query = this.input.getQuery();
                this.dropdown.isEmpty && query.length >= this.minLength ? this.dropdown.update(query) : this.dropdown.moveCursorDown();
                this.dropdown.open();
            },
            _onLeftKeyed: function onLeftKeyed() {
                this.dir === "rtl" && this._autocomplete();
            },
            _onRightKeyed: function onRightKeyed() {
                this.dir === "ltr" && this._autocomplete();
            },
            _onQueryChanged: function onQueryChanged(e, query) {
                this.input.clearHintIfInvalid();
                query.length >= this.minLength ? this.dropdown.update(query) : this.dropdown.empty();
                this.dropdown.open();
                this._setLanguageDirection();
            },
            _onWhitespaceChanged: function onWhitespaceChanged() {
                this._updateHint();
                this.dropdown.open();
            },
            _setLanguageDirection: function setLanguageDirection() {
                var dir;
                if (this.dir !== (dir = this.input.getLanguageDirection())) {
                    this.dir = dir;
                    this.$node.css("direction", dir);
                    this.dropdown.setLanguageDirection(dir);
                }
            },
            _updateHint: function updateHint() {
                var datum, val, query, escapedQuery, frontMatchRegEx, match;
                datum = this.dropdown.getDatumForTopSuggestion();
                if (datum && this.dropdown.isVisible() && !this.input.hasOverflow()) {
                    val = this.input.getInputValue();
                    query = Input.normalizeQuery(val);
                    escapedQuery = _.escapeRegExChars(query);
                    frontMatchRegEx = new RegExp("^(?:" + escapedQuery + ")(.+$)", "i");
                    match = frontMatchRegEx.exec(datum.value);
                    match ? this.input.setHint(val + match[1]) : this.input.clearHint();
                } else {
                    this.input.clearHint();
                }
            },
            _autocomplete: function autocomplete(laxCursor) {
                var hint, query, isCursorAtEnd, datum;
                hint = this.input.getHint();
                query = this.input.getQuery();
                isCursorAtEnd = laxCursor || this.input.isCursorAtEnd();
                if (hint && query !== hint && isCursorAtEnd) {
                    datum = this.dropdown.getDatumForTopSuggestion();
                    datum && this.input.setInputValue(datum.value);
                    this.eventBus.trigger("autocompleted", datum.raw, datum.datasetName);
                }
            },
            _select: function select(datum) {
                this.input.setQuery(datum.value);
                this.input.setInputValue(datum.value, true);
                this._setLanguageDirection();
                this.eventBus.trigger("selected", datum.raw, datum.datasetName);
                this.dropdown.close();
                _.defer(_.bind(this.dropdown.empty, this.dropdown));
            },
            open: function open() {
                this.dropdown.open();
            },
            close: function close() {
                this.dropdown.close();
            },
            setVal: function setVal(val) {
                val = _.toStr(val);
                if (this.isActivated) {
                    this.input.setInputValue(val);
                } else {
                    this.input.setQuery(val);
                    this.input.setInputValue(val, true);
                }
                this._setLanguageDirection();
            },
            getVal: function getVal() {
                return this.input.getQuery();
            },
            destroy: function destroy() {
                this.input.destroy();
                this.dropdown.destroy();
                destroyDomStructure(this.$node);
                this.$node = null;
            }
        });
        return Typeahead;
        function buildDom(input, withHint) {
            var $input, $wrapper, $dropdown, $hint;
            $input = $(input);
            $wrapper = $(html.wrapper).css(css.wrapper);
            $dropdown = $(html.dropdown).css(css.dropdown);
            $hint = $input.clone().css(css.hint).css(getBackgroundStyles($input));
            $hint.val("").removeData().addClass("tt-hint").removeAttr("id name placeholder required").prop("readonly", true).attr({
                autocomplete: "off",
                spellcheck: "false",
                tabindex: -1
            });
            $input.data(attrsKey, {
                dir: $input.attr("dir"),
                autocomplete: $input.attr("autocomplete"),
                spellcheck: $input.attr("spellcheck"),
                style: $input.attr("style")
            });
            $input.addClass("tt-input").attr({
                autocomplete: "off",
                spellcheck: false
            }).css(withHint ? css.input : css.inputWithNoHint);
            try {
                !$input.attr("dir") && $input.attr("dir", "auto");
            } catch (e) {}
            return $input.wrap($wrapper).parent().prepend(withHint ? $hint : null).append($dropdown);
        }
        function getBackgroundStyles($el) {
            return {
                backgroundAttachment: $el.css("background-attachment"),
                backgroundClip: $el.css("background-clip"),
                backgroundColor: $el.css("background-color"),
                backgroundImage: $el.css("background-image"),
                backgroundOrigin: $el.css("background-origin"),
                backgroundPosition: $el.css("background-position"),
                backgroundRepeat: $el.css("background-repeat"),
                backgroundSize: $el.css("background-size")
            };
        }
        function destroyDomStructure($node) {
            var $input = $node.find(".tt-input");
            _.each($input.data(attrsKey), function(val, key) {
                _.isUndefined(val) ? $input.removeAttr(key) : $input.attr(key, val);
            });
            $input.detach().removeData(attrsKey).removeClass("tt-input").insertAfter($node);
            $node.remove();
        }
    }();
    (function() {
        "use strict";
        var old, typeaheadKey, methods;
        old = $.fn.typeahead;
        typeaheadKey = "ttTypeahead";
        methods = {
            initialize: function initialize(o, datasets) {
                datasets = _.isArray(datasets) ? datasets : [].slice.call(arguments, 1);
                o = o || {};
                return this.each(attach);
                function attach() {
                    var $input = $(this), eventBus, typeahead;
                    _.each(datasets, function(d) {
                        d.highlight = !!o.highlight;
                    });
                    typeahead = new Typeahead({
                        input: $input,
                        eventBus: eventBus = new EventBus({
                            el: $input
                        }),
                        withHint: _.isUndefined(o.hint) ? true : !!o.hint,
                        minLength: o.minLength,
                        autoselect: o.autoselect,
                        datasets: datasets
                    });
                    $input.data(typeaheadKey, typeahead);
                }
            },
            open: function open() {
                return this.each(openTypeahead);
                function openTypeahead() {
                    var $input = $(this), typeahead;
                    if (typeahead = $input.data(typeaheadKey)) {
                        typeahead.open();
                    }
                }
            },
            close: function close() {
                return this.each(closeTypeahead);
                function closeTypeahead() {
                    var $input = $(this), typeahead;
                    if (typeahead = $input.data(typeaheadKey)) {
                        typeahead.close();
                    }
                }
            },
            val: function val(newVal) {
                return !arguments.length ? getVal(this.first()) : this.each(setVal);
                function setVal() {
                    var $input = $(this), typeahead;
                    if (typeahead = $input.data(typeaheadKey)) {
                        typeahead.setVal(newVal);
                    }
                }
                function getVal($input) {
                    var typeahead, query;
                    if (typeahead = $input.data(typeaheadKey)) {
                        query = typeahead.getVal();
                    }
                    return query;
                }
            },
            destroy: function destroy() {
                return this.each(unattach);
                function unattach() {
                    var $input = $(this), typeahead;
                    if (typeahead = $input.data(typeaheadKey)) {
                        typeahead.destroy();
                        $input.removeData(typeaheadKey);
                    }
                }
            }
        };
        $.fn.typeahead = function(method) {
            var tts;
            if (methods[method] && method !== "initialize") {
                tts = this.filter(function() {
                    return !!$(this).data(typeaheadKey);
                });
                return methods[method].apply(tts, [].slice.call(arguments, 1));
            } else {
                return methods.initialize.apply(this, arguments);
            }
        };
        $.fn.typeahead.noConflict = function noConflict() {
            $.fn.typeahead = old;
            return this;
        };
    })();
    return {};
}));

// Converse.js (A browser based XMPP chat client)
// http://conversejs.org
//
// Copyright (c) 2012-2016, Jan-Carel Brand <jc@opkode.com>
// Licensed under the Mozilla Public License (MPLv2)
//
/*global Backbone, define, window */

/* 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",
            "converse-api",
            "typeahead",
            "converse-chatview"
    ], factory);
}(this, function (converse, converse_api) {
    "use strict";
    // Strophe methods for building stanzas
    var Strophe = converse_api.env.Strophe,
        $iq = converse_api.env.$iq,
        $build = converse_api.env.$build,
        $msg = converse_api.env.$msg,
        $pres = converse_api.env.$pres,
        b64_sha1 = converse_api.env.b64_sha1,
        utils = converse_api.env.utils;
    // Other necessary globals
    var $ = converse_api.env.jQuery,
        _ = converse_api.env._,
        moment = converse_api.env.moment;

    // For translations
    var __ = utils.__.bind(converse);
    var ___ = utils.___;

    // 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");

    converse_api.plugins.add('converse-muc', {
        /* Optional dependencies are other plugins which might be
         * overridden or relied upon, if they exist, otherwise they're ignored.
         *
         * However, 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.

            wrappedChatBox: function (chatbox) {
                /* Wrap a chatbox for outside consumption (i.e. so that it can be
                * returned via the API.
                */
                if (!chatbox) { return; }
                var view = converse.chatboxviews.get(chatbox.get('id'));
                var box = this._super.wrappedChatBox.apply(this, arguments);
                box.is_chatroom = view.is_chatroom;
                return box;
            },

            Features: {
                addClientFeatures: function () {
                    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 () {
                    // TODO: This can probably be refactored to be an event
                    // handler (and therefore removed from overrides)
                    var converse = this._super.converse;
                    this._super.onConnected.apply(this, arguments);

                    if (this.model.get('connected')) {
                        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);
                        }
                    }
                },

                featureAdded: function (feature) {
                    var converse = this._super.converse;
                    if ((feature.get('var') === Strophe.NS.MUC) && (converse.allow_muc)) {
                        this.roomspanel.model.save({muc_domain: feature.get('from')});
                        var $server= this.$el.find('input.new-chatroom-server');
                        if (! $server.is(':focus')) {
                            $server.val(this.roomspanel.model.get('muc_domain'));
                        }
                    }
                }
            },

            ChatBoxViews: {
                onChatBoxAdded: function (item) {
                    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;
            // Configuration values for this plugin
            this.updateSettings({
                allow_muc_invitations: true,
                allow_muc: true,
                auto_join_on_invite: false,  // Auto-join chatroom on invite
                auto_join_rooms: [], // List of maps {'jid': 'room@example.org', 'nick': 'WizardKing69' },
                                     // providing room jids and nicks or simply a list JIDs.
                auto_list_rooms: false,
                hide_muc_server: false,
                muc_history_max_stanzas: undefined, // Takes an integer, limits the amount of messages to fetch from chat room's history
                show_toolbar: true,
            });


            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',
                is_chatroom: true,
                events: {
                    'click .close-chatbox-button': 'close',
                    'click .configure-chatroom-button': 'configureChatRoom',
                    '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 textarea.chat-textarea': 'keyPressed'
                },

                initialize: function () {
                    this.model.messages.on('add', this.onMessageAdded, this);
                    this.model.on('show', this.show, this);
                    this.model.on('destroy', this.hide, this);

                    this.occupantsview = new converse.ChatRoomOccupantsView({
                        model: new converse.ChatRoomOccupants({nick: this.model.get('nick')})
                    });
                    var id = b64_sha1('converse.occupants'+converse.bare_jid+this.model.get('id')+this.model.get('nick'));
                    this.occupantsview.model.browserStorage = new Backbone.BrowserStorage[converse.storage](id);
                    this.occupantsview.chatroomview = this;
                    this.render().$el.hide();
                    this.occupantsview.model.fetch({add:true});
                    var nick = this.model.get('nick');
                    if (!nick) {
                        this.checkForReservedNick();
                    } else {
                        this.join(nick);
                    }

                    this.fetchMessages().insertIntoDOM();
                    // XXX: adding the event below to the events map above doesn't work.
                    // The code that gets executed because of that looks like this:
                    //      this.$el.on('scroll', '.chat-content', this.markScrolled.bind(this));
                    // Which for some reason doesn't work.
                    // So working around that fact here:
                    this.$el.find('.chat-content').on('scroll', this.markScrolled.bind(this));
                    converse.emit('chatRoomOpened', this);
                },

                insertIntoDOM: function () {
                    var view = converse.chatboxviews.get("controlbox");
                    if (view) {
                        this.$el.insertAfter(view.$el);
                    } else {
                        $('#conversejs').prepend(this.$el);
                    }
                    return this;
                },

                render: function () {
                    this.$el.attr('id', this.model.get('box_id'))
                            .html(converse.templates.chatroom(this.model.toJSON()));
                    this.renderChatArea();
                    window.setTimeout(converse.refreshWebkit, 50);
                    return this;
                },

                renderChatArea: function () {
                    if (!this.$('.chat-area').length) {
                        this.$('.chatroom-body').empty()
                            .append(
                                converse.templates.chatarea({
                                    'unread_msgs': __('You have unread messages'),
                                    'show_toolbar': converse.show_toolbar,
                                    'label_message': __('Message')
                                }))
                            .append(this.occupantsview.render().$el);
                        this.renderToolbar();
                        this.$content = this.$el.find('.chat-content');
                    }
                    this.toggleOccupants(null, true);
                    return this;
                },

                close: function (ev) {
                    converse.connection.deleteHandler(this.handler);
                    this.leave();
                    converse.ChatBoxView.prototype.close.apply(this, arguments);
                },

                toggleOccupants: function (ev, preserve_state) {
                    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);
                },

                directInvite: function (recipient, reason) {
                    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
                    });
                },

                onCommandError: function (stanza) {
                    this.showStatusNotification(__("Error: could not execute the command"), true);
                },

                sendChatRoomMessage: function (text) {
                    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("composing");
                    converse.connection.send(msg);
                    this.model.messages.create({
                        fullname: this.model.get('nick'),
                        sender: 'me',
                        time: moment().format(),
                        message: text,
                        msgid: msgid
                    });
                },

                setAffiliation: function(room, jid, affiliation, reason, onSuccess, onError) {
                    var item = $build("item", {jid: jid, affiliation: affiliation});
                    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);
                },

                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);
                },

                member: function(room, jid, reason, handler_cb, error_cb) {
                    return this.setAffiliation(room, jid, 'member', reason, handler_cb, error_cb);
                },
                revoke: function(room, jid, reason, handler_cb, error_cb) {
                    return this.setAffiliation(room, jid, 'none', reason, handler_cb, error_cb);
                },
                owner: function(room, jid, reason, handler_cb, error_cb) {
                    return this.setAffiliation(room, jid, 'owner', reason, handler_cb, error_cb);
                },
                admin: function(room, jid, reason, handler_cb, error_cb) {
                    return this.setAffiliation(room, jid, 'admin', reason, handler_cb, error_cb);
                },

                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) {
                    if (typeof ev !== "undefined") { 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;
                },

                onChatRoomMessageSubmitted: function (text) {
                    /* Gets called when the user presses enter to send off a
                     * message in a chat room.
                     *
                     * Parameters:
                     *    (String) text - The message text.
                     */
                    var match = text.replace(/^\s*/, "").match(/^\/(.*?)(?: (.*))?$/) || [false, '', ''],
                        args = match[2] && match[2].splitOnce(' ') || [];
                    switch (match[1]) {
                        case 'admin':
                            if (!this.validateRoleChangeCommand(match[1], args)) { break; }
                            this.setAffiliation(
                                    this.model.get('jid'), args[0], 'admin', args[1],
                                    undefined, this.onCommandError.bind(this));
                            break;
                        case 'ban':
                            if (!this.validateRoleChangeCommand(match[1], args)) { break; }
                            this.setAffiliation(
                                    this.model.get('jid'), args[0], 'outcast', args[1],
                                    undefined, this.onCommandError.bind(this));
                            break;
                        case 'clear':
                            this.clearChatRoomMessages();
                            break;
                        case 'deop':
                            if (!this.validateRoleChangeCommand(match[1], 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>/topic</strong>: ' +__('Set room topic'),
                                '<strong>/voice</strong>: ' +__('Allow muted user to post messages')
                            ]);
                            break;
                        case 'kick':
                            if (!this.validateRoleChangeCommand(match[1], args)) { break; }
                            this.modifyRole(
                                    this.model.get('jid'), args[0], 'none', args[1],
                                    undefined, this.onCommandError.bind(this));
                            break;
                        case 'mute':
                            if (!this.validateRoleChangeCommand(match[1], args)) { break; }
                            this.modifyRole(
                                    this.model.get('jid'), args[0], 'visitor', args[1],
                                    undefined, this.onCommandError.bind(this));
                            break;
                        case 'member':
                            if (!this.validateRoleChangeCommand(match[1], args)) { break; }
                            this.setAffiliation(
                                    this.model.get('jid'), args[0], 'member', args[1],
                                    undefined, 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(match[1], args)) { break; }
                            this.setAffiliation(
                                    this.model.get('jid'), args[0], 'owner', args[1],
                                    undefined, this.onCommandError.bind(this));
                            break;
                        case 'op':
                            if (!this.validateRoleChangeCommand(match[1], args)) { break; }
                            this.modifyRole(
                                    this.model.get('jid'), args[0], 'moderator', args[1],
                                    undefined, this.onCommandError.bind(this));
                            break;
                        case 'revoke':
                            if (!this.validateRoleChangeCommand(match[1], args)) { break; }
                            this.setAffiliation(
                                    this.model.get('jid'), args[0], 'none', args[1],
                                    undefined, this.onCommandError.bind(this));
                            break;
                        case 'topic':
                            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(match[1], args)) { break; }
                            this.modifyRole(
                                    this.model.get('jid'), args[0], 'occupant', args[1],
                                    undefined, this.onCommandError.bind(this));
                            break;
                        default:
                            this.sendChatRoomMessage(text);
                        break;
                    }
                },

                handleMUCStanza: function (stanza) {
                    var xmlns, xquery, i;
                    var from = stanza.getAttribute('from');
                    var is_mam = $(stanza).find('[xmlns="'+Strophe.NS.MAM+'"]').length > 0;
                    if (!from || (this.model.get('id') !== from.split("/")[0])  || is_mam) {
                        return true;
                    }
                    if (stanza.nodeName === "message") {
                        _.compose(this.onChatRoomMessage.bind(this), this.showStatusMessages.bind(this))(stanza);
                    } else if (stanza.nodeName === "presence") {
                        xquery = stanza.getElementsByTagName("x");
                        if (xquery.length > 0) {
                            for (i = 0; i < xquery.length; i++) {
                                xmlns = xquery[i].getAttribute("xmlns");
                                if (xmlns && xmlns.match(Strophe.NS.MUC)) {
                                    this.onChatRoomPresence(stanza);
                                    break;
                                }
                            }
                        }
                    }
                    return true;
                },

                getRoomJIDAndNick: function (nick) {
                    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 : "");
                },

                join: function (nick, password) {
                    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));
                    }
                    if (!this.handler) {
                        this.handler = converse.connection.addHandler(this.handleMUCStanza.bind(this));
                    }
                    this.model.set('connection_status', Strophe.Status.CONNECTING);
                    return converse.connection.send(stanza);
                },

                leave: function(exit_msg) {
                    var presenceid = converse.connection.getUniqueId();
                    var presence = $pres({
                        type: "unavailable",
                        id: presenceid,
                        from: converse.connection.jid,
                        to: this.getRoomJIDAndNick()
                    });
                    if (exit_msg !== null) {
                        presence.c("status", exit_msg);
                    }
                    converse.connection.addHandler(
                        function () {
                            this.model.set('connection_status', Strophe.Status.DISCONNECTED);
                        }.bind(this),
                        null, "presence", null, presenceid);
                    converse.connection.send(presence);
                },

                renderConfigurationForm: function (stanza) {
                    var $form = this.$el.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', this.cancelConfiguration.bind(this));
                    $form.on('submit', this.saveConfiguration.bind(this));
                },

                sendConfiguration: function(config, onSuccess, onError) {
                    // Send an IQ stanza with the room configuration.
                    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(); });
                    return converse.connection.sendIQ(iq.tree(), onSuccess, onError);
                },

                saveConfiguration: function (ev) {
                    ev.preventDefault();
                    var that = this;
                    var $inputs = $(ev.target).find(':input:not([type=button]):not([type=submit])'),
                        count = $inputs.length,
                        configArray = [];
                    $inputs.each(function () {
                        configArray.push(utils.webForm2xForm(this));
                        if (!--count) {
                            that.sendConfiguration(
                                configArray,
                                that.onConfigSaved.bind(that),
                                that.onErrorConfigSaved.bind(that)
                            );
                        }
                    });
                    this.$el.find('div.chatroom-form-container').hide(
                        function () {
                            $(this).remove();
                            that.$el.find('.chat-area').removeClass('hidden');
                            that.$el.find('.occupants').removeClass('hidden');
                        });
                },

                onConfigSaved: function (stanza) {
                    // TODO: provide feedback
                },

                onErrorConfigSaved: function (stanza) {
                    this.showStatusNotification(__("An error occurred while trying to save the form."));
                },

                cancelConfiguration: function (ev) {
                    ev.preventDefault();
                    var that = this;
                    this.$el.find('div.chatroom-form-container').hide(
                        function () {
                            $(this).remove();
                            that.$el.find('.chat-area').removeClass('hidden');
                            that.$el.find('.occupants').removeClass('hidden');
                        });
                },

                configureChatRoom: function (ev) {
                    ev.preventDefault();
                    if (this.$el.find('div.chatroom-form-container').length) {
                        return;
                    }
                    this.$('.chatroom-body').children().addClass('hidden');
                    this.$('.chatroom-body').append(converse.templates.chatroom_form());
                    converse.connection.sendIQ(
                            $iq({
                                to: this.model.get('jid'),
                                type: "get"
                            }).c("query", {xmlns: Strophe.NS.MUC_OWNER}).tree(),
                            this.renderConfigurationForm.bind(this)
                    );
                },

                submitNickname: function (ev) {
                    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 as 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.renderNicknameForm.bind(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 render a form for them to
                     * specify one.
                     */
                    var nick = $(iq)
                        .find('query[node="x-roomuser-item"] identity')
                        .attr('name');
                    if (!nick) {
                        this.renderNicknameForm();
                    } else {
                        this.join(nick);
                    }
                },

                renderNicknameForm: function (message) {
                    this.$('.chatroom-body').children().addClass('hidden');
                    this.$('span.centered.spinner').remove();
                    if (typeof message !== "string") {
                        message = '';
                    }
                    this.$('.chatroom-body').append(
                        converse.templates.chatroom_nickname_form({
                            heading: __('Please choose your nickname'),
                            label_nickname: __('Nickname'),
                            label_join: __('Enter room'),
                            validation_message: message
                        }));
                    this.$('.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.$('.chatroom-body').children().hide();
                    this.$('span.centered.spinner').remove();
                    this.$('.chatroom-body').append(
                        converse.templates.chatroom_password_form({
                            heading: __('This chatroom requires a password'),
                            label_password: __('Password: '),
                            label_submit: __('Submit')
                        }));
                    this.$('.chatroom-form').on('submit', this.submitPassword.bind(this));
                },

                showDisconnectMessage: function (msg) {
                    this.$('.chat-area').hide();
                    this.$('.occupants').hide();
                    this.$('span.centered.spinner').remove();
                    this.$('.chatroom-body').append($('<p>'+msg+'</p>'));
                },

                /* 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
                 */
                infoMessages: {
                    100: __('This room is not anonymous'),
                    102: __('This room now shows unavailable members'),
                    103: __('This room does not show unavailable members'),
                    104: __('Non-privacy-related room configuration has changed'),
                    170: __('Room logging is now enabled'),
                    171: __('Room logging is now disabled'),
                    172: __('This room is now non-anonymous'),
                    173: __('This room is now semi-anonymous'),
                    174: __('This room is now fully-anonymous'),
                    201: __('A new room has been created')
                },

                disconnectMessages: {
                    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.")
                },

                actionInfoMessages: {
                    /* 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: ___("<strong>%1$s</strong> has been banned"),
                    303: ___("<strong>%1$s</strong>'s nickname has changed"),
                    307: ___("<strong>%1$s</strong> has been kicked out"),
                    321: ___("<strong>%1$s</strong> has been removed because of an affiliation change"),
                    322: ___("<strong>%1$s</strong> has been removed for not being a member")
                },

                newNicknameMessages: {
                    210: ___('Your nickname has been automatically set to: <strong>%1$s</strong>'),
                    303: ___('Your nickname has been changed to: <strong>%1$s</strong>')
                },

                showStatusMessages: function (el, is_self) {
                    /* Check for status codes and communicate their purpose to the user.
                     * Allow user to configure chat room if they are the owner.
                     * See: http://xmpp.org/registrar/mucstatus.html
                     */
                    var $el = $(el),
                        i, disconnect_msgs = [], msgs = [], reasons = [];

                    $el.find('x[xmlns="'+Strophe.NS.MUC_USER+'"]').each(function (idx, x) {
                        var $item = $(x).find('item');
                        if (Strophe.getBareJidFromJid($item.attr('jid')) === converse.bare_jid && $item.attr('affiliation') === 'owner') {
                            this.$el.find('a.configure-chatroom-button').show();
                        }
                        $(x).find('item reason').each(function (idx, reason) {
                            if ($(reason).text()) {
                                reasons.push($(reason).text());
                            }
                        });
                        $(x).find('status').each(function (idx, stat) {
                            var code = stat.getAttribute('code');
                            var from_nick = Strophe.unescapeNode(Strophe.getResourceFromJid($el.attr('from')));
                            if (is_self && code === "210") {
                                msgs.push(__(this.newNicknameMessages[code], from_nick));
                            } else if (is_self && code === "303") {
                                msgs.push(__(this.newNicknameMessages[code], $item.attr('nick')));
                            } else if (is_self && _.contains(_.keys(this.disconnectMessages), code)) {
                                disconnect_msgs.push(this.disconnectMessages[code]);
                            } else if (!is_self && _.contains(_.keys(this.actionInfoMessages), code)) {
                                msgs.push(__(this.actionInfoMessages[code], from_nick));
                            } else if (_.contains(_.keys(this.infoMessages), code)) {
                                msgs.push(this.infoMessages[code]);
                            } else if (code !== '110') {
                                if ($(stat).text()) {
                                    msgs.push($(stat).text()); // Sometimes the status contains human readable text and not a code.
                                }
                            }
                        }.bind(this));
                    }.bind(this));

                    if (disconnect_msgs.length > 0) {
                        for (i=0; i<disconnect_msgs.length; i++) {
                            this.showDisconnectMessage(disconnect_msgs[i]);
                        }
                        for (i=0; i<reasons.length; i++) {
                            this.showDisconnectMessage(__('The reason given is: "'+reasons[i]+'"'), true);
                        }
                        this.model.set('connection_status', Strophe.Status.DISCONNECTED);
                        return;
                    }
                    for (i=0; i<msgs.length; i++) {
                        this.$content.append(converse.templates.info({message: msgs[i]}));
                    }
                    for (i=0; i<reasons.length; i++) {
                        this.showStatusNotification(__('The reason given is: "'+reasons[i]+'"'), true);
                    }
                    if (disconnect_msgs.length || msgs.length || reasons.length) {
                        this.scrollDown();
                    }
                    return el;
                },

                showErrorMessage: function ($error) {
                    // We didn't enter the room, so we must remove it from the MUC
                    // add-on
                    if ($error.attr('type') === 'auth') {
                        if ($error.find('not-authorized').length) {
                            this.renderPasswordForm();
                        } else if ($error.find('registration-required').length) {
                            this.showDisconnectMessage(__('You are not on the member list of this room'));
                        } else if ($error.find('forbidden').length) {
                            this.showDisconnectMessage(__('You have been banned from this room'));
                        }
                    } else if ($error.attr('type') === 'modify') {
                        if ($error.find('jid-malformed').length) {
                            this.showDisconnectMessage(__('No nickname was specified'));
                        }
                    } else if ($error.attr('type') === 'cancel') {
                        if ($error.find('not-allowed').length) {
                            this.showDisconnectMessage(__('You are not allowed to create new rooms'));
                        } else if ($error.find('not-acceptable').length) {
                            this.showDisconnectMessage(__("Your nickname doesn't conform to this room's policies"));
                        } else if ($error.find('conflict').length) {
                            this.renderNicknameForm(__("The nickname you chose is reserved or currently in use, please choose a different one."));
                        } else if ($error.find('item-not-found').length) {
                            this.showDisconnectMessage(__("This room does not (yet) exist"));
                        } else if ($error.find('service-unavailable').length) {
                            this.showDisconnectMessage(__("This room has reached its maximum number of occupants"));
                        }
                    }
                },

                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 that = this;
                    var $spinner = this.$el.find('.spinner');
                    if ($spinner.length) {
                        $spinner.hide(function () {
                            $(this).remove();
                            that.$el.find('.chat-area').removeClass('hidden');
                            that.$el.find('.occupants').removeClass('hidden');
                        });
                    }
                    return this;
                },

                onChatRoomPresence: function (pres) {
                    var $presence = $(pres), is_self;
                    var nick = this.model.get('nick');
                    if ($presence.attr('type') === 'error') {
                        this.model.set('connection_status', Strophe.Status.DISCONNECTED);
                        this.showErrorMessage($presence.find('error'));
                    } else {
                        is_self = ($presence.find("status[code='110']").length) ||
                            ($presence.attr('from') === this.model.get('id')+'/'+Strophe.escapeNode(nick));
                        if (this.model.get('connection_status') !== Strophe.Status.CONNECTED) {
                            this.model.set('connection_status', Strophe.Status.CONNECTED);
                        }
                        this.hideSpinner().showStatusMessages(pres, is_self);
                    }
                    this.occupantsview.updateOccupantsOnPresence(pres);
                },

                setChatRoomSubject: function (sender, subject) {
                    this.$el.find('.chatroom-topic').text(subject).attr('title', subject);
                    // For translators: the %1$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(
                        converse.templates.info({
                            'message': __('Topic set by %1$s to: %2$s', sender, subject)
                        }));
                    this.scrollDown();
                },

                onChatRoomMessage: function (message) {
                    var $message = $(message),
                        $forwarded = $message.find('forwarded'),
                        $delay;
                    if ($forwarded.length) {
                        $message = $forwarded.children('message');
                        $delay = $forwarded.children('delay');
                    }
                    var jid = $message.attr('from'),
                        msgid = $message.attr('id'),
                        resource = Strophe.getResourceFromJid(jid),
                        sender = resource && Strophe.unescapeNode(resource) || '',
                        subject = $message.children('subject').text(),
                        dupes = msgid && this.model.messages.filter(function (msg) {
                            // Find duplicates.
                            // Some bots (like HAL in the prosody chatroom)
                            // respond to commands with the same ID as the
                            // original message. So we also check the sender.
                            return msg.get('msgid') === msgid && msg.get('fullname') === sender;
                        });
                    if (dupes && dupes.length) {
                        return true;
                    }
                    if (subject) {
                        this.setChatRoomSubject(sender, subject);
                    }
                    if (sender === '') {
                        return true;
                    }
                    this.model.createMessage($message, $delay, message);
                    if (sender !== this.model.get('nick')) {
                        // We only emit an event if it's not our own message
                        converse.emit('message', message);
                    }
                    return true;
                },

                fetchArchivedMessages: function (options) {
                    /* Fetch archived chat messages from the XMPP server.
                     *
                     * Then, upon receiving them, call onChatRoomMessage
                     * so that they are displayed inside it.
                     */
                    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;
                    }
                    this.addSpinner();
                    converse_api.archive.query(_.extend(options, {'groupchat': true}),
                        function (messages) {
                            this.clearSpinner();
                            if (messages.length) {
                                _.map(messages, this.onChatRoomMessage.bind(this));
                            }
                        }.bind(this),
                        function () {
                            this.clearSpinner();
                            converse.log("Error while trying to fetch archived messages", "error");
                        }.bind(this)
                    );
                }
            });

            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 new_el = converse.templates.occupant(
                        _.extend(
                            this.model.toJSON(), {
                                'hint_occupant': __('Click to mention this user 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.')
                        })
                    );
                    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);
                },

                render: function () {
                    this.$el.html(
                        converse.templates.chatroom_sidebar({
                            'allow_muc_invitations': converse.allow_muc_invitations,
                            'label_invitation': __('Invite'),
                            'label_occupants': __('Occupants')
                        })
                    );
                    if (converse.allow_muc_invitations) {
                        return this.initInviteWidget();
                    }
                    return this;
                },

                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 || null;
                                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) {
                    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);
                            }
                    }
                },

                initInviteWidget: function () {
                    var $el = this.$('input.invited-contact');
                    $el.typeahead({
                        minLength: 1,
                        highlight: true
                    }, {
                        name: 'contacts-dataset',
                        source: function (q, cb) {
                            var results = [];
                            _.each(converse.roster.filter(utils.contains(['fullname', 'jid'], q)), function (n) {
                                results.push({value: n.get('fullname'), jid: n.get('jid')});
                            });
                            cb(results);
                        },
                        templates: {
                            suggestion: _.template('<p data-jid="{{jid}}">{{value}}</p>')
                        }
                    });
                    $el.on('typeahead:selected', function (ev, suggestion, dname) {
                        var reason = prompt(
                            __(___('You are about to invite %1$s to the chat room "%2$s". '), suggestion.value, this.model.get('id')) +
                            __("You may optionally include a message, explaining the reason for the invitation.")
                        );
                        if (reason !== null) {
                            this.chatroomview.directInvite(suggestion.jid, reason);
                        }
                        $(ev.target).typeahead('val', '');
                    }.bind(this));
                    return 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': 'showRoomInfo',
                    '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(
                            converse.templates.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')
                            })
                        ).hide());
                    this.$tabs = this.$parent.parent().find('#controlbox-tabs');
                    this.$tabs.append(converse.templates.chatrooms_tab({label_rooms: __('Rooms')}));
                    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 = $(this.rooms[i]).attr('jid');
                            fragment.appendChild($(
                                converse.templates.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();
                },

                showRoomInfo: function (ev) {
                    var target = ev.target,
                        $dd = $(target).parent('dd'),
                        $div = $dd.find('div.room-info');
                    if ($div.length) {
                        $div.remove();
                    } else {
                        $dd.find('span.spinner').remove();
                        $dd.append('<span class="spinner hor_centered"/>');
                        converse.connection.disco.info(
                            $(target).attr('data-room-jid'),
                            null,
                            function (stanza) {
                                var $stanza = $(stanza);
                                // All MUC features found here: http://xmpp.org/registrar/disco-features.html
                                $dd.find('span.spinner').replaceWith(
                                    converse.templates.room_description({
                                        '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_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')
                                    }));
                            }.bind(this));
                    }
                },

                createChatRoom: function (ev) {
                    ev.preventDefault();
                    var name, $name,
                        server, $server,
                        jid,
                        chatroom;

                    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;
                        }
                    }
                    chatroom = converse.chatboxviews.showChat({
                        '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});
                }
            });

            /* Support for XEP-0249: Direct MUC invitations */
            /* ------------------------------------------------------------ */
            converse.onDirectMUCInvitation = function (message) {
                /*  A direct MUC invitation to join a room has been received */
                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.chatboxviews.showChat({
                        '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 (!_.contains(
                                [Strophe.Status.CONNECTING, Strophe.Status.CONNECTED],
                                chatroom.get('connection_status'))
                            ) {
                        converse.chatboxviews.get(room_jid).join();
                    }
                }
            };

            var autoJoinRooms = function () {
                _.each(converse.auto_join_rooms, function (room) {
                    if (typeof room === 'string') {
                        converse_api.rooms.open(room);
                    } else if (typeof room === 'object') {
                        converse_api.rooms.open(room.jid, room.nick);
                    } else {
                        converse.log('Invalid room criteria specified for "auto_join_rooms"', 'error');
                    }
                });
            };
            converse.on('chatBoxesFetched', autoJoinRooms);

            if (converse.allow_muc_invitations) {
                var onConnected = function () {
                    converse.connection.addHandler(
                        function (message) {
                            converse.onDirectMUCInvitation(message);
                            return true;
                        }, 'jabber:x:conference', 'message');
                };
                converse.on('connected', onConnected);
                converse.on('reconnected', onConnected);
            }
            /* ------------------------------------------------------------ */

            var _transform = function (jid, nick, fetcher) {
                jid = jid.toLowerCase();
                return converse.wrappedChatBox(fetcher({
                    'id': jid,
                    'jid': jid,
                    'name': Strophe.unescapeNode(Strophe.getNodeFromJid(jid)),
                    'nick': nick,
                    'type': 'chatroom',
                    'box_id': b64_sha1(jid)
                }));
            };


            /* We extend the default converse.js API to add methods specific to MUC
             * chat rooms.
             */
            _.extend(converse_api, {
                'rooms': {
                    'close': function (jids) {
                        if (typeof jids === "undefined") {
                            converse.chatboxviews.each(function (view) {
                                if (view.is_chatroom && view.model) {
                                    view.close();
                                }
                            });
                        } else if (typeof jids === "string") {
                            var view = converse.chatboxviews.get(jids);
                            if (view) { view.close(); }
                        } else {
                            _.map(jids, function (jid) {
                                var view = converse.chatboxviews.get(jid);
                                if (view) { view.close(); }
                            });
                        }
                    },
                    'open': function (jids, nick) {
                        var fetcher = converse.chatboxviews.showChat.bind(converse.chatboxviews);
                        if (typeof jids === "undefined") {
                            throw new TypeError('rooms.open: You need to provide at least one JID');
                        } else if (typeof jids === "string") {
                            return _transform(jids, nick, fetcher);
                        }
                        return _.map(jids, _.partial(_transform, _, nick, fetcher));
                    },
                    'get': function (jids, nick, create) {
                        if (typeof jids === "undefined") {
                            var result = [];
                            converse.chatboxes.each(function (chatbox) {
                                if (chatbox.get('type') === 'chatroom') {
                                    result.push(converse.wrappedChatBox(chatbox));
                                }
                            });
                            return result;
                        }
                        var fetcher = _.partial(converse.chatboxviews.getChatBox.bind(converse.chatboxviews), _, create);
                        if (!nick) {
                            nick = Strophe.getNodeFromJid(converse.bare_jid);
                        }
                        if (typeof jids === "string") {
                            return _transform(jids, nick, fetcher);
                        }
                        return _.map(jids, _.partial(_transform, _, nick, fetcher));
                    }
                }
            });
        }
    });
}));

// 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) 2012-2016, 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-api",
            "converse-chatview", // Could be made a soft dependency
            "converse-muc", // Could be made a soft dependency
            "strophe.rsm"
    ], factory);
}(this, function (converse, converse_api) {
    "use strict";
    var $ = converse_api.env.jQuery,
        Strophe = converse_api.env.Strophe,
        $iq = converse_api.env.$iq,
        _ = converse_api.env._,
        moment = converse_api.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_api.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 () {
                    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 () {
                    if (this.disable_mam || !converse.features.findWhere({'var': Strophe.NS.MAM})) {
                        return this._super.afterMessagesFetched.apply(this, arguments);
                    }
                    if (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
                        });
                    }
                    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.
                     */
                    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) {
                                _.map(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) {
                    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;
                },

            }

        },


        initialize: function () {
            /* The initialize function gets called as soon as the plugin is
             * loaded by converse.js's plugin machinery.
             */
            this.updateSettings({
                archived_messages_page_size: '20',
                message_archiving: 'never', // 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 (typeof options === "function") {
                    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 (typeof options !== "undefined" && 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 (typeof options !== "undefined") {
                    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 (typeof callback === "function") {
                    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 (evt, feature) {
                var prefs = feature.get('preferences') || {};
                if (feature.get('var') === Strophe.NS.MAM && prefs['default'] !== 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) 2012-2016, Jan-Carel Brand <jc@opkode.com>
// Licensed under the Mozilla Public License (MPLv2)
//
/*global define */

(function (root, factory) {
    define("converse-vcard", [
            "converse-core",
            "converse-api",
            "strophe.vcard",
    ], factory);
}(this, function (converse, converse_api) {
    "use strict";
    var Strophe = converse_api.env.Strophe,
        $ = converse_api.env.jQuery,
        _ = converse_api.env._,
        moment = converse_api.env.moment;


    converse_api.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 () {
                    this._super.addClientFeatures.apply(this, arguments);
                    if (converse.use_vcards) {
                        converse.connection.disco.addFeature(Strophe.NS.VCARD);
                    }
                }
            },

            RosterContacts: {
                createRequestingContact: function (presence) {
                    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.
             */
            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 (evt, 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);
        }
    });
}));

/*
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));

define("crypto.core", 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
*/
(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+/='
    };
}());

define("crypto.enc-base64", ["crypto.core"], function(){});

(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;

    // Constants table
    var T = [];

    // Compute constants
    (function () {
        for (var i = 0; i < 64; i++) {
            T[i] = (Math.abs(Math.sin(i + 1)) * 0x100000000) | 0;
        }
    }());

    /**
     * MD5 hash algorithm.
     */
    var MD5 = C_algo.MD5 = Hasher.extend({
        _doReset: function () {
            this._hash = new WordArray.init([
                0x67452301, 0xefcdab89,
                0x98badcfe, 0x10325476
            ]);
        },

        _doProcessBlock: function (M, offset) {
            // Swap endian
            for (var i = 0; i < 16; i++) {
                // Shortcuts
                var offset_i = offset + i;
                var M_offset_i = M[offset_i];

                M[offset_i] = (
                    (((M_offset_i << 8)  | (M_offset_i >>> 24)) & 0x00ff00ff) |
                    (((M_offset_i << 24) | (M_offset_i >>> 8))  & 0xff00ff00)
                );
            }

            // Shortcuts
            var H = this._hash.words;

            var M_offset_0  = M[offset + 0];
            var M_offset_1  = M[offset + 1];
            var M_offset_2  = M[offset + 2];
            var M_offset_3  = M[offset + 3];
            var M_offset_4  = M[offset + 4];
            var M_offset_5  = M[offset + 5];
            var M_offset_6  = M[offset + 6];
            var M_offset_7  = M[offset + 7];
            var M_offset_8  = M[offset + 8];
            var M_offset_9  = M[offset + 9];
            var M_offset_10 = M[offset + 10];
            var M_offset_11 = M[offset + 11];
            var M_offset_12 = M[offset + 12];
            var M_offset_13 = M[offset + 13];
            var M_offset_14 = M[offset + 14];
            var M_offset_15 = M[offset + 15];

            // Working varialbes
            var a = H[0];
            var b = H[1];
            var c = H[2];
            var d = H[3];

            // Computation
            a = FF(a, b, c, d, M_offset_0,  7,  T[0]);
            d = FF(d, a, b, c, M_offset_1,  12, T[1]);
            c = FF(c, d, a, b, M_offset_2,  17, T[2]);
            b = FF(b, c, d, a, M_offset_3,  22, T[3]);
            a = FF(a, b, c, d, M_offset_4,  7,  T[4]);
            d = FF(d, a, b, c, M_offset_5,  12, T[5]);
            c = FF(c, d, a, b, M_offset_6,  17, T[6]);
            b = FF(b, c, d, a, M_offset_7,  22, T[7]);
            a = FF(a, b, c, d, M_offset_8,  7,  T[8]);
            d = FF(d, a, b, c, M_offset_9,  12, T[9]);
            c = FF(c, d, a, b, M_offset_10, 17, T[10]);
            b = FF(b, c, d, a, M_offset_11, 22, T[11]);
            a = FF(a, b, c, d, M_offset_12, 7,  T[12]);
            d = FF(d, a, b, c, M_offset_13, 12, T[13]);
            c = FF(c, d, a, b, M_offset_14, 17, T[14]);
            b = FF(b, c, d, a, M_offset_15, 22, T[15]);

            a = GG(a, b, c, d, M_offset_1,  5,  T[16]);
            d = GG(d, a, b, c, M_offset_6,  9,  T[17]);
            c = GG(c, d, a, b, M_offset_11, 14, T[18]);
            b = GG(b, c, d, a, M_offset_0,  20, T[19]);
            a = GG(a, b, c, d, M_offset_5,  5,  T[20]);
            d = GG(d, a, b, c, M_offset_10, 9,  T[21]);
            c = GG(c, d, a, b, M_offset_15, 14, T[22]);
            b = GG(b, c, d, a, M_offset_4,  20, T[23]);
            a = GG(a, b, c, d, M_offset_9,  5,  T[24]);
            d = GG(d, a, b, c, M_offset_14, 9,  T[25]);
            c = GG(c, d, a, b, M_offset_3,  14, T[26]);
            b = GG(b, c, d, a, M_offset_8,  20, T[27]);
            a = GG(a, b, c, d, M_offset_13, 5,  T[28]);
            d = GG(d, a, b, c, M_offset_2,  9,  T[29]);
            c = GG(c, d, a, b, M_offset_7,  14, T[30]);
            b = GG(b, c, d, a, M_offset_12, 20, T[31]);

            a = HH(a, b, c, d, M_offset_5,  4,  T[32]);
            d = HH(d, a, b, c, M_offset_8,  11, T[33]);
            c = HH(c, d, a, b, M_offset_11, 16, T[34]);
            b = HH(b, c, d, a, M_offset_14, 23, T[35]);
            a = HH(a, b, c, d, M_offset_1,  4,  T[36]);
            d = HH(d, a, b, c, M_offset_4,  11, T[37]);
            c = HH(c, d, a, b, M_offset_7,  16, T[38]);
            b = HH(b, c, d, a, M_offset_10, 23, T[39]);
            a = HH(a, b, c, d, M_offset_13, 4,  T[40]);
            d = HH(d, a, b, c, M_offset_0,  11, T[41]);
            c = HH(c, d, a, b, M_offset_3,  16, T[42]);
            b = HH(b, c, d, a, M_offset_6,  23, T[43]);
            a = HH(a, b, c, d, M_offset_9,  4,  T[44]);
            d = HH(d, a, b, c, M_offset_12, 11, T[45]);
            c = HH(c, d, a, b, M_offset_15, 16, T[46]);
            b = HH(b, c, d, a, M_offset_2,  23, T[47]);

            a = II(a, b, c, d, M_offset_0,  6,  T[48]);
            d = II(d, a, b, c, M_offset_7,  10, T[49]);
            c = II(c, d, a, b, M_offset_14, 15, T[50]);
            b = II(b, c, d, a, M_offset_5,  21, T[51]);
            a = II(a, b, c, d, M_offset_12, 6,  T[52]);
            d = II(d, a, b, c, M_offset_3,  10, T[53]);
            c = II(c, d, a, b, M_offset_10, 15, T[54]);
            b = II(b, c, d, a, M_offset_1,  21, T[55]);
            a = II(a, b, c, d, M_offset_8,  6,  T[56]);
            d = II(d, a, b, c, M_offset_15, 10, T[57]);
            c = II(c, d, a, b, M_offset_6,  15, T[58]);
            b = II(b, c, d, a, M_offset_13, 21, T[59]);
            a = II(a, b, c, d, M_offset_4,  6,  T[60]);
            d = II(d, a, b, c, M_offset_11, 10, T[61]);
            c = II(c, d, a, b, M_offset_2,  15, T[62]);
            b = II(b, c, d, a, M_offset_9,  21, T[63]);

            // 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;
        },

        _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);

            var nBitsTotalH = Math.floor(nBitsTotal / 0x100000000);
            var nBitsTotalL = nBitsTotal;
            dataWords[(((nBitsLeft + 64) >>> 9) << 4) + 15] = (
                (((nBitsTotalH << 8)  | (nBitsTotalH >>> 24)) & 0x00ff00ff) |
                (((nBitsTotalH << 24) | (nBitsTotalH >>> 8))  & 0xff00ff00)
            );
            dataWords[(((nBitsLeft + 64) >>> 9) << 4) + 14] = (
                (((nBitsTotalL << 8)  | (nBitsTotalL >>> 24)) & 0x00ff00ff) |
                (((nBitsTotalL << 24) | (nBitsTotalL >>> 8))  & 0xff00ff00)
            );

            data.sigBytes = (dataWords.length + 1) * 4;

            // Hash final blocks
            this._process();

            // Shortcuts
            var hash = this._hash;
            var H = hash.words;

            // Swap endian
            for (var i = 0; i < 4; i++) {
                // Shortcut
                var H_i = H[i];

                H[i] = (((H_i << 8)  | (H_i >>> 24)) & 0x00ff00ff) |
                       (((H_i << 24) | (H_i >>> 8))  & 0xff00ff00);
            }

            // Return final computed hash
            return hash;
        },

        clone: function () {
            var clone = Hasher.clone.call(this);
            clone._hash = this._hash.clone();

            return clone;
        }
    });

    function FF(a, b, c, d, x, s, t) {
        var n = a + ((b & c) | (~b & d)) + x + t;
        return ((n << s) | (n >>> (32 - s))) + b;
    }

    function GG(a, b, c, d, x, s, t) {
        var n = a + ((b & d) | (c & ~d)) + x + t;
        return ((n << s) | (n >>> (32 - s))) + b;
    }

    function HH(a, b, c, d, x, s, t) {
        var n = a + (b ^ c ^ d) + x + t;
        return ((n << s) | (n >>> (32 - s))) + b;
    }

    function II(a, b, c, d, x, s, t) {
        var n = a + (c ^ (b | ~d)) + x + t;
        return ((n << s) | (n >>> (32 - s))) + b;
    }

    /**
     * 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.MD5('message');
     *     var hash = CryptoJS.MD5(wordArray);
     */
    C.MD5 = Hasher._createHelper(MD5);

    /**
     * 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.HmacMD5(message, key);
     */
    C.HmacMD5 = Hasher._createHmacHelper(MD5);
}(Math));

define("crypto.md5", ["crypto.core"], function(){});

(function () {
    // Shortcuts
    var C = CryptoJS;
    var C_lib = C.lib;
    var Base = C_lib.Base;
    var WordArray = C_lib.WordArray;
    var C_algo = C.algo;
    var MD5 = C_algo.MD5;

    /**
     * This key derivation function is meant to conform with EVP_BytesToKey.
     * www.openssl.org/docs/crypto/EVP_BytesToKey.html
     */
    var EvpKDF = C_algo.EvpKDF = Base.extend({
        /**
         * Configuration options.
         *
         * @property {number} keySize The key size in words to generate. Default: 4 (128 bits)
         * @property {Hasher} hasher The hash algorithm to use. Default: MD5
         * @property {number} iterations The number of iterations to perform. Default: 1
         */
        cfg: Base.extend({
            keySize: 128/32,
            hasher: MD5,
            iterations: 1
        }),

        /**
         * Initializes a newly created key derivation function.
         *
         * @param {Object} cfg (Optional) The configuration options to use for the derivation.
         *
         * @example
         *
         *     var kdf = CryptoJS.algo.EvpKDF.create();
         *     var kdf = CryptoJS.algo.EvpKDF.create({ keySize: 8 });
         *     var kdf = CryptoJS.algo.EvpKDF.create({ keySize: 8, iterations: 1000 });
         */
        init: function (cfg) {
            this.cfg = this.cfg.extend(cfg);
        },

        /**
         * Derives a key from a password.
         *
         * @param {WordArray|string} password The password.
         * @param {WordArray|string} salt A salt.
         *
         * @return {WordArray} The derived key.
         *
         * @example
         *
         *     var key = kdf.compute(password, salt);
         */
        compute: function (password, salt) {
            // Shortcut
            var cfg = this.cfg;

            // Init hasher
            var hasher = cfg.hasher.create();

            // Initial values
            var derivedKey = WordArray.create();

            // Shortcuts
            var derivedKeyWords = derivedKey.words;
            var keySize = cfg.keySize;
            var iterations = cfg.iterations;

            // Generate key
            while (derivedKeyWords.length < keySize) {
                if (block) {
                    hasher.update(block);
                }
                var block = hasher.update(password).finalize(salt);
                hasher.reset();

                // Iterations
                for (var i = 1; i < iterations; i++) {
                    block = hasher.finalize(block);
                    hasher.reset();
                }

                derivedKey.concat(block);
            }
            derivedKey.sigBytes = keySize * 4;

            return derivedKey;
        }
    });

    /**
     * Derives a key from a password.
     *
     * @param {WordArray|string} password The password.
     * @param {WordArray|string} salt A salt.
     * @param {Object} cfg (Optional) The configuration options to use for this computation.
     *
     * @return {WordArray} The derived key.
     *
     * @static
     *
     * @example
     *
     *     var key = CryptoJS.EvpKDF(password, salt);
     *     var key = CryptoJS.EvpKDF(password, salt, { keySize: 8 });
     *     var key = CryptoJS.EvpKDF(password, salt, { keySize: 8, iterations: 1000 });
     */
    C.EvpKDF = function (password, salt, cfg) {
        return EvpKDF.create(cfg).compute(password, salt);
    };
}());

define("crypto.evpkdf", ["crypto.md5"], 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
*/
/**
 * 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;
        }
    });
}());

define("crypto.cipher-core", ["crypto.enc-base64","crypto.evpkdf"], 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
*/
(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);
}());

define("crypto.aes", ["crypto.cipher-core"], 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
*/
(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);
}());

define("crypto.sha1", ["crypto.core"], 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
*/
(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));

define("crypto.sha256", ["crypto.core"], 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
*/
(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;
        }
    });
}());

define("crypto.hmac", ["crypto.core"], 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
*/
/**
 * A noop padding strategy.
 */
CryptoJS.pad.NoPadding = {
    pad: function () {
    },

    unpad: function () {
    }
};

define("crypto.pad-nopadding", ["crypto.cipher-core"], 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;
}());

define("crypto.mode-ctr", ["crypto.cipher-core"], function(){});

;(function (root, factory) {
    if (typeof define === "function" && define.amd) {
        define('crypto',[
            "crypto.core",
            "crypto.enc-base64",
            "crypto.md5",
            "crypto.evpkdf",
            "crypto.cipher-core",
            "crypto.aes",
            "crypto.sha1",
            "crypto.sha256",
            "crypto.hmac",
            "crypto.pad-nopadding",
            "crypto.mode-ctr"
            ], function() {
                return CryptoJS;
            }
        );
    } else {
        root.CryptoJS = factory();
    }
}(this));

;(function (root, factory) {

  if (typeof define === 'function' && define.amd) {
    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
  }

}))
;
/*!
 * 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 v0.2.12 - 2014-04-15
  (c) 2014 - Arlo Breault <arlolra@gmail.com>
  Freely distributed under the MPL v2.0 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',[
        "jquery",
        "jquery.browser",
        "bigint",
        "crypto",
        "eventemitter"
    ], function ($, dummy, BigInt, CryptoJS, EventEmitter) {
      if ($.browser.msie) {
          return undefined;
      }
      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
  }

  // 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 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.', true)

      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.', true)

          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.', true)

          // 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.', true)

          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], true)

          // 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], true)

          // 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

        // 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

  // 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){
       return { msg: m, meta: meta }
    })
    this.outgoing = this.outgoing.concat(msg)

    var self = this
    ;(function send(first) {
      if (!first) {
        if (!self.outgoing.length) return
        var elem = self.outgoing.shift()
        self.trigger('io', [elem.msg, elem.meta])
      }
      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.error('Not ready to encrypt.')

    var sessKeys = this.sessKeys[1][0]

    if (sessKeys.send_counter >= MAX_INT)
      return this.error('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.error('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.error(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.', true)
      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.', true)
      return
    }

    if (their_keyid < 0 || their_keyid > 1) {
      if (!ign) this.error('Not of your latest keys.', true)
      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.error('Must be encrypted for SMP.')

    if (typeof secret !== 'string' || secret.length < 1)
      return this.error('Secret is required.')

    if (!this.sm) this._smInit()

    // utf8 inputs
    secret = CryptoJS.enc.Utf8.parse(secret).toString(CryptoJS.enc.Latin1)
    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.error('Message cannot be sent at this time.')
        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) {

    // parse type
    msg = Parse.parseMsg(this, msg)

    if (!msg) return

    switch (msg.cls) {
      case 'error':
        this.error(msg.msg)
        return
      case 'ake':
        if ( msg.version === CONST.OTR_VERSION_3 &&
          this.checkInstanceTags(msg.instance_tags)
        ) return  // ignore
        this.ake.handleAKE(msg)
        return
      case 'data':
        if ( msg.version === CONST.OTR_VERSION_3 &&
          this.checkInstanceTags(msg.instance_tags)
        ) 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.error('Received an unencrypted message.')

        // 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])
  }

  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 {
      // is this an error?
      this.error('OTR conversation requested, ' +
        'but no compatible protocol version found.')
    }
  }

  OTR.prototype.error = function (err, send) {
    if (send) {
      if (!this.debug) err = "An OTR error has occurred."
      err = '?OTR Error:' + err
      this.io(err)
      return
    }
    this.trigger('error', [err])
  }

  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.error('Not ready to encrypt.')

    if (this.ake.otr_version !== CONST.OTR_VERSION_3)
      return this.error('Protocol v3 required.')

    if (!filename) return this.error('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.error('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 () {
    if (this.msgstate === CONST.MSGSTATE_ENCRYPTED) {
      this.sendMsg('\x00\x00\x01\x00\x00')
      if (this.sm) {
        if (this.smw) this.sm.worker.terminate()  // destroy webworker
        this.sm = null
      }
    }
    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) 2012-2016, Jan-Carel Brand <jc@opkode.com>
// Licensed under the Mozilla Public License (MPLv2)
//
/*global Backbone, 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", [
            "otr",
            "converse-core",
            "converse-api"
    ], factory);
}(this, function (otr, converse, converse_api) {
    "use strict";
    // Strophe methods for building stanzas
    var Strophe = converse_api.env.Strophe,
        utils = converse_api.env.utils,
        b64_sha1 = converse_api.env.b64_sha1;
    // Other necessary globals
    var $ = converse_api.env.jQuery,
        _ = converse_api.env._;

    // For translations
    var __ = utils.__.bind(converse);

    var HAS_CSPRNG = ((typeof crypto !== 'undefined') &&
        ((typeof crypto.randomBytes === 'function') ||
            (typeof crypto.getRandomValues === 'function')
    ));
    var HAS_CRYPTO = HAS_CSPRNG && (
        (typeof CryptoJS !== "undefined") &&
        (typeof otr.OTR !== "undefined") &&
        (typeof otr.DSA !== "undefined")
    );

    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_api.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.
 
            _initialize: function () {
                this._super._initialize.apply(this, arguments);
                this.otr = new this.OTR();
            },

            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();
                    }
                });
            },

            wrappedChatBox: function (chatbox) {
                var wrapped_chatbox = this._super.wrappedChatBox.apply(this, arguments);
                if (!chatbox) { return; }
                return _.extend(wrapped_chatbox, {
                    'endOTR': chatbox.endOTR.bind(chatbox),
                    'initiateOTR': chatbox.initiateOTR.bind(chatbox),
                });
            },

            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]) && !_.contains([UNVERIFIED, VERIFIED], this.get('otr_status')));
                },

                createMessage: function ($message, $delay, original_stanza) {
                    var converse = this._super.converse,
                        $body = $message.children('body'),
                        text = ($body.length > 0 ? $body.text() : undefined);

                    if ((!text) || (!converse.allow_otr)) {
                        return this._super.createMessage.apply(this, arguments);
                    }
                    if (text.match(/^\?OTRv23?/)) {
                        this.initiateOTR(text);
                    } else {
                        if (_.contains([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);
                            }
                        }
                    }
                },
                
                getSession: function (callback) {
                    var converse = this._super.converse;
                    var cipher = CryptoJS.lib.PasswordBasedCipher;
                    var pass, instance_tag, saved_key, pass_check;
                    if (converse.cache_otr_key) {
                        pass = converse.otr.getSessionPassphrase();
                        if (typeof pass !== "undefined") {
                            instance_tag = window.sessionStorage[b64_sha1(this.id+'instance_tag')];
                            saved_key = window.sessionStorage[b64_sha1(this.id+'priv_key')];
                            pass_check = window.sessionStorage[b64_sha1(this.connection.jid+'pass_check')];
                            if (saved_key && instance_tag && typeof pass_check !== 'undefined') {
                                var decrypted = cipher.decrypt(CryptoJS.algo.AES, saved_key, pass);
                                var key = otr.DSA.parsePrivate(decrypted.toString(CryptoJS.enc.Latin1));
                                if (cipher.decrypt(CryptoJS.algo.AES, pass_check, pass).toString(CryptoJS.enc.Latin1) === 'match') {
                                    // Verified that the passphrase is still the same
                                    this.trigger('showHelpMessages', [__('Re-establishing encrypted session')]);
                                    callback({
                                        'key': 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
                    );
                    window.setTimeout(function () {
                        var instance_tag = otr.OTR.makeInstanceTag();
                        callback({
                            'key': converse.otr.generatePrivateKey.call(this, instance_tag),
                            'instance_tag': instance_tag
                        });
                    }, 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).
                    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.
                    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 ((_.contains([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 (_.contains([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 data = this.model.toJSON();
                    var 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;
                    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 (typeof ev !== "undefined") {
                        ev.preventDefault();
                        ev.stopPropagation();
                    }
                    this.model.endOTR();
                },

                authOTR: function (ev) {
                    var converse = this._super.converse;
                    var scheme = $(ev.target).data().scheme;
                    var result, question, answer;
                    if (scheme === 'fingerprint') {
                        result = confirm(__('Here are the fingerprints, please confirm them with %1$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 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 (options) {
                    var converse = this._super.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.call(this, options);
                    this.$el.find('.chat-toolbar').append(
                            converse.templates.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;
            // 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');

            // For translations
            __ = utils.__.bind(converse);
            // Configuration values for this plugin
            var settings = {
                allow_otr: true,
                cache_otr_key: false,
                use_otr_by_default: false
            };
            _.extend(converse.default_settings, settings);
            _.extend(converse, settings);
            _.extend(converse, _.pick(converse.user_settings, Object.keys(settings)));

            // 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;

            // Backbone Models and Views
            // -------------------------
            converse.OTR = Backbone.Model.extend({
                // A model for managing OTR settings.
                getSessionPassphrase: function () {
                    if (converse.authentication === 'prebind') {
                        var key = b64_sha1(converse.connection.jid),
                            pass = window.sessionStorage[key];
                        if (typeof pass === 'undefined') {
                            pass = Math.floor(Math.random()*4294967295).toString();
                            window.sessionStorage[key] = pass;
                        }
                        return pass;
                    } else {
                        return converse.connection.pass;
                    }
                },

                generatePrivateKey: function (instance_tag) {
                    var key = new otr.DSA();
                    var jid = converse.connection.jid;
                    if (converse.cache_otr_key) {
                        var cipher = CryptoJS.lib.PasswordBasedCipher;
                        var pass = this.getSessionPassphrase();
                        if (typeof pass !== "undefined") {
                            // Encrypt the key and set in sessionStorage. Also store instance tag.
                            window.sessionStorage[b64_sha1(jid+'priv_key')] =
                                cipher.encrypt(CryptoJS.algo.AES, key.packPrivate(), pass).toString();
                            window.sessionStorage[b64_sha1(jid+'instance_tag')] = instance_tag;
                            window.sessionStorage[b64_sha1(jid+'pass_check')] =
                                cipher.encrypt(CryptoJS.algo.AES, 'match', pass).toString();
                        }
                    }
                    return key;
                }
            });
        }
    });
}));

// Converse.js (A browser based XMPP chat client)
// http://conversejs.org
//
// Copyright (c) 2012-2016, Jan-Carel Brand <jc@opkode.com>
// Licensed under the Mozilla Public License (MPLv2)
//
/*global Backbone, 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",
            "converse-api",
            "converse-controlbox"
    ], factory);
}(this, function (converse, converse_api) {
    "use strict";
    // Strophe methods for building stanzas
    var Strophe = converse_api.env.Strophe,
        utils = converse_api.env.utils,
        $iq = converse_api.env.$iq;
    // Other necessary globals
    var $ = converse_api.env.jQuery,
        _ = converse_api.env._;
    // For translations
    var __ = utils.__.bind(converse);
    
    // Add Strophe Namespaces
    Strophe.addNamespace('REGISTER', 'jabber:iq:register');

    // Add Strophe Statuses
    var i = 0;
    Object.keys(Strophe.Status).forEach(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_api.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: {

                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
                        });
                        this.registerpanel.render().$el.hide();
                    }
                    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;

            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.$parent.append(this.$el.html(
                        converse.templates.register_panel({
                            '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(converse.templates.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
                     */
                    converse.log("sendQueryStanza was called");
                    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());
                    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, Object.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()
                        .after(converse.templates.registration_request({
                            cancel: __('Cancel'),
                            info_message: __('Requesting a registration form from the XMPP server')
                        }));
                    $form.find('button.cancel').on('click', this.cancelRegistration.bind(this));
                    this.reset({
                        domain: Strophe.getDomainFromJid(domain),
                        _registering: true
                    });
                    converse.connection.connect(this.domain, "", this.onRegistering.bind(this));
                    return false;
                },

                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 (_.contains([
                                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')})
                                    .giveFeedback(__('Now logging you in'));
                            } else {
                                converse.chatboxviews.get('controlbox')
                                    .renderLoginPanel()
                                    .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.
                     */
                    var $form= this.$('form'),
                        $stanza = $(stanza),
                        $fields, $input;
                    $form.empty().append(converse.templates.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(Object.keys(this.fields), function (key) {
                            if (key === "username") {
                                $input = converse.templates.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));
                    }
                },

                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.render();
                },

                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 $empty_inputs = this.$('input.required:emptyVal');
                    if ($empty_inputs.length) {
                        $empty_inputs.addClass('error');
                        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());
                        });
                    }
                    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
*/
/**
* File: strophe.ping.js
* A Strophe plugin for XMPP Ping ( http://xmpp.org/extensions/xep-0199.html )
*/
/* 
* AMD Support added by Thierry
* 
*/

(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) 2012-2016, 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",
        "converse-api",
        "strophe.ping"
    ], factory);
}(this, function (converse, converse_api) {
    "use strict";
    // Strophe methods for building stanzas
    var Strophe = converse_api.env.Strophe;
    // Other necessary globals
    var _ = converse_api.env._;
    
    converse_api.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 (typeof jid === 'undefined' || jid === null) {
                    jid = Strophe.getDomainFromJid(converse.bare_jid);
                }
                if (typeof timeout === 'undefined' ) { timeout = null; }
                if (typeof success === 'undefined' ) { success = null; }
                if (typeof error === 'undefined' ) { 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;
                    });
                }
            };

            _.extend(converse_api, {
                /* We extend the default converse.js API to add a method specific
                 * to this plugin.
                 */
                'ping': function (jid) {
                    converse.ping(jid);
                }
            });

            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) 2012-2016, Jan-Carel Brand <jc@opkode.com>
// Licensed under the Mozilla Public License (MPLv2)
//
/*global define */

(function (root, factory) {
    define("converse-notification", ["converse-core", "converse-api"], factory);
}(this, function (converse, converse_api) {
    "use strict";
    var $ = converse_api.env.jQuery,
        utils = converse_api.env.utils,
        Strophe = converse_api.env.Strophe,
        _ = converse_api.env._;
    // For translations
    var __ = utils.__.bind(converse);
    var ___ = utils.___;


    converse_api.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;
            converse.supports_html5_notification = "Notification" in window;

            this.updateSettings({
                notify_all_room_messages: false,
                show_desktop_notifications: true,
                chatstate_notification_blacklist: [],
                // ^ a list of JIDs to ignore concerning chat state notifications
                play_sounds: false,
                sounds_path: '/sounds/',
                notification_icon: '/logo/conversejs128.png'
            });

            converse.isOnlyChatStateNotification = function ($msg) {
                // See XEP-0085 Chat State Notification
                return (
                    $msg.find('body').length === 0 && (
                        $msg.find(converse.ACTIVE).length !== 0 ||
                        $msg.find(converse.COMPOSING).length !== 0 ||
                        $msg.find(converse.INACTIVE).length !== 0 ||
                        $msg.find(converse.PAUSED).length !== 0 ||
                        $msg.find(converse.GONE).length !== 0
                    )
                );
            };

            converse.shouldNotifyOfGroupMessage = function ($message) {
                /* Is this a group message worthy of notification?
                 */
                var notify_all = converse.notify_all_room_messages,
                    jid = $message.attr('from'),
                    resource = Strophe.getResourceFromJid(jid),
                    room_jid = Strophe.getBareJidFromJid(jid),
                    sender = resource && Strophe.unescapeNode(resource) || '';
                if (sender === '' || $message.find('delay').length > 0) {
                    return false;
                }
                var room = converse.chatboxes.get(room_jid);
                var $body = $message.children('body');
                if (!$body.length) {
                    return false;
                }
                var mentioned = (new RegExp("\\b"+room.get('nick')+"\\b")).test($body.text());
                notify_all = notify_all === true || (_.isArray(notify_all) && _.contains(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 $message = $(message),
                    $forwarded = $message.find('forwarded');
                if ($forwarded.length) {
                    return false;
                } else if ($message.attr('type') === 'groupchat') {
                    return converse.shouldNotifyOfGroupMessage($message);
                } else if (utils.isHeadlineMessage(message)) {
                    // We want to show notifications for headline messages.
                    return true;
                }
                var is_me = Strophe.getBareJidFromJid($message.attr('from')) === converse.bare_jid;
                return !converse.isOnlyChatStateNotification($message) && !is_me;
            };

            converse.playSoundNotification = function ($message) {
                /* 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 && typeof Audio !== "undefined") {
                    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 n, title, contact_jid, roster_item,
                    from_jid = $message.attr('from');
                if ($message.attr('type') === 'headline' || from_jid.indexOf('@') === -1) {
                    // XXX: 2nd check is workaround for Prosody which doesn't
                    // give type "headline"
                    title = __(___("Notification from %1$s"), from_jid);
                } else {
                    if ($message.attr('type') === 'groupchat') {
                        title = __(___("%1$s says"), Strophe.getResourceFromJid(from_jid));
                    } else {
                        if (typeof converse.roster === 'undefined') {
                            converse.log("Could not send notification, because roster is undefined", "error");
                            return;
                        }
                        contact_jid = Strophe.getBareJidFromJid($message.attr('from'));
                        roster_item = converse.roster.get(contact_jid);
                        title = __(___("%1$s says"), roster_item.get('fullname'));
                    }
                }
                n = new Notification(title, {
                        body: $message.children('body').text(),
                        lang: converse.i18n.locale_data.converse[""].lang,
                        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 (_.contains(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.i18n.locale_data.converse[""].lang,
                        icon: 'logo/conversejs.png'
                    });
                setTimeout(n.close.bind(n), 5000);
            };

            converse.showContactRequestNotification = function (contact) {
                var n = new Notification(contact.fullname, {
                        body: __('wants to be your contact'),
                        lang: converse.i18n.locale_data.converse[""].lang,
                        icon: 'logo/conversejs.png'
                    });
                setTimeout(n.close.bind(n), 5000);
            };

            converse.showErrorNotification = function (data) {
                var n = new Notification(__('An error has occured'), {
                        body: data.message,
                        lang: converse.i18n.locale_data.converse[""].lang,
                        icon: 'logo/conversejs.png'
                    });
                setTimeout(n.close.bind(n), 5000);
            };

            converse.handleChatStateNotification = function (evt, contact) {
                /* Event handler for on('contactStatusChanged').
                 * Will show an HTML5 notification to indicate that the chat
                 * status has changed.
                 */
                if (converse.areDesktopNotificationsEnabled()) {
                    converse.showChatStateNotification(contact);
                }
            };

            converse.handleMessageNotification = function (evt, message) {
                /* Event handler for the on('message') event. Will call methods
                 * to play sounds and show HTML5 notifications.
                 */
                var $message = $(message);
                if (!converse.shouldNotifyOfMessage(message)) {
                    return false;
                }
                converse.playSoundNotification($message);
                if (converse.areDesktopNotificationsEnabled()) {
                    converse.showMessageNotification($message);
                }
            };

            converse.handleContactRequestNotification = function (evt, contact) {
                if (converse.areDesktopNotificationsEnabled(true)) {
                    converse.showContactRequestNotification(contact);
                }
            };

            converse.handleFeedback = function (evt, data) {
                if (data.klass === 'error' && converse.areDesktopNotificationsEnabled(true)) {
                    converse.showErrorNotification(data);
                }
            };

            converse.requestPermission = function (evt) {
                if (converse.supports_html5_notification &&
                    ! _.contains(['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) 2012-2016, Jan-Carel Brand <jc@opkode.com>
// Licensed under the Mozilla Public License (MPLv2)
//
/*global define, window */

(function (root, factory) {
    define("converse-headline", [
            "converse-core",
            "converse-api",
            "converse-chatview"
    ], factory);
}(this, function (converse, converse_api) {
    "use strict";
    var $ = converse_api.env.jQuery,
        _ = converse_api.env._,
        utils = converse_api.env.utils,
        __ = utils.__.bind(converse);

    var onHeadlineMessage = function (message) {
        /* Handler method for all incoming messages of type "headline".
         */
        var $message = $(message),
            from_jid = $message.attr('from');
        if (utils.isHeadlineMessage(message)) {
            converse.chatboxes.create({
                'id': from_jid,
                'jid': from_jid,
                'fullname':  from_jid,
                'type': 'headline'
            }).createMessage($message, undefined, message);
            converse.emit('message', message);
        }
        return true;
    };

    converse_api.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 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.
             */
            converse.HeadlinesBoxView = converse.ChatBoxView.extend({
                className: 'chatbox headlines',

                events: {
                    'click .close-chatbox-button': 'close',
                    'click .toggle-chatbox-button': 'minimize',
                    'keypress textarea.chat-textarea': 'keyPressed',
                    'mousedown .dragresize-top': 'onStartVerticalResize',
                    'mousedown .dragresize-left': 'onStartHorizontalResize',
                    'mousedown .dragresize-topleft': 'onStartDiagonalResize'
                },

                initialize: function () {
                    if (typeof this.setDimensions !== "undefined") {
                        // setDimensions is defined for dragresize
                        $(window).on('resize', _.debounce(this.setDimensions.bind(this), 100));
                    }
                    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(converse.templates.chatbox(
                                _.extend(this.model.toJSON(), {
                                        show_toolbar: converse.show_toolbar,
                                        show_textarea: false,
                                        title: this.model.get('fullname'),
                                        unread_msgs: __('You have unread messages'),
                                        info_close: __('Close this box'),
                                        info_minimize: __('Minimize this box'),
                                        label_personal_message: ''
                                    }
                                )
                            )
                        );
                    if (typeof this.setWidth !== "undefined") {
                        // setWidth is defined for dragresize
                        $(window).on('resize', _.debounce(this.setWidth.bind(this), 100));
                    }
                    this.$content = this.$el.find('.chat-content');
                    converse.emit('chatBoxOpened', this);
                    window.setTimeout(utils.refreshWebkit, 50);
                    return this;
                }
            });

            var registerHeadlineHandler = function () {
                converse.connection.addHandler(
                        onHeadlineMessage, null, 'message');
            };
            converse.on('connected', registerHeadlineHandler);
            converse.on('reconnected', registerHeadlineHandler);
        }
    });
}));

/* Converse.js components configuration
 *
 * This file is used to tell require.js which components (or plugins) to load
 * when it generates a build.
 */

if (typeof define !== 'undefined') {
    /* When running tests, define is not defined. */
    define("converse", [
        "jquery",
        "converse-api",

        /* START: Removable components
        * --------------------
        * Any of the following components may be removed if they're not needed.
        */
        "locales",              // Translations for converse.js. This line can be removed
                                // to remove *all* translations, or you can modify the
                                // file src/locales.js to include only those
                                // translations that you care about.

        "converse-chatview",    // Renders standalone chat boxes for single user chat
        "converse-controlbox",  // The control box
        "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-minimize",    // Allows chat boxes to be minimized
        "converse-dragresize",  // Allows chat boxes to be resized by dragging them
        "converse-headline",    // Support for headline messages
        /* END: Removable components */

    ], function($, converse_api) {
        window.converse = converse_api;
        $(window).trigger('converse-loaded', converse_api);
        return converse_api;
    });
}
;

require(["converse"]);
define('converse-minimize', [], function () { return; });
define('converse-dragresize', [], function () { return; });