472 lines
20 KiB
JavaScript
472 lines
20 KiB
JavaScript
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/**
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* jQuery lightBox plugin
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* This jQuery plugin was inspired and based on Lightbox 2 by Lokesh Dhakar (http://www.huddletogether.com/projects/lightbox2/)
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* and adapted to me for use like a plugin from jQuery.
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* @name jquery-lightbox-0.5.js
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* @author Leandro Vieira Pinho - http://leandrovieira.com
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* @version 0.5
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* @date April 11, 2008
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* @category jQuery plugin
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* @copyright (c) 2008 Leandro Vieira Pinho (leandrovieira.com)
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* @license CCAttribution-ShareAlike 2.5 Brazil - http://creativecommons.org/licenses/by-sa/2.5/br/deed.en_US
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* @example Visit http://leandrovieira.com/projects/jquery/lightbox/ for more informations about this jQuery plugin
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*/
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// Offering a Custom Alias suport - More info: http://docs.jquery.com/Plugins/Authoring#Custom_Alias
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(function($) {
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/**
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* $ is an alias to jQuery object
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*
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*/
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$.fn.lightBox = function(settings) {
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// Settings to configure the jQuery lightBox plugin how you like
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settings = jQuery.extend({
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// Configuration related to overlay
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overlayBgColor: '#000', // (string) Background color to overlay; inform a hexadecimal value like: #RRGGBB. Where RR, GG, and BB are the hexadecimal values for the red, green, and blue values of the color.
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overlayOpacity: 0.8, // (integer) Opacity value to overlay; inform: 0.X. Where X are number from 0 to 9
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// Configuration related to navigation
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fixedNavigation: false, // (boolean) Boolean that informs if the navigation (next and prev button) will be fixed or not in the interface.
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// Configuration related to images
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imageLoading: 'images/lightbox-ico-loading.gif', // (string) Path and the name of the loading icon
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imageBtnPrev: 'images/lightbox-btn-prev.gif', // (string) Path and the name of the prev button image
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imageBtnNext: 'images/lightbox-btn-next.gif', // (string) Path and the name of the next button image
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imageBtnClose: 'images/lightbox-btn-close.gif', // (string) Path and the name of the close btn
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imageBlank: 'images/lightbox-blank.gif', // (string) Path and the name of a blank image (one pixel)
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// Configuration related to container image box
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containerBorderSize: 10, // (integer) If you adjust the padding in the CSS for the container, #lightbox-container-image-box, you will need to update this value
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containerResizeSpeed: 400, // (integer) Specify the resize duration of container image. These number are miliseconds. 400 is default.
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// Configuration related to texts in caption. For example: Image 2 of 8. You can alter either "Image" and "of" texts.
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txtImage: 'Image', // (string) Specify text "Image"
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txtOf: 'of', // (string) Specify text "of"
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// Configuration related to keyboard navigation
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keyToClose: 'c', // (string) (c = close) Letter to close the jQuery lightBox interface. Beyond this letter, the letter X and the SCAPE key is used to.
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keyToPrev: 'p', // (string) (p = previous) Letter to show the previous image
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keyToNext: 'n', // (string) (n = next) Letter to show the next image.
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// Don<6F>t alter these variables in any way
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imageArray: [],
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activeImage: 0
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},settings);
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// Caching the jQuery object with all elements matched
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var jQueryMatchedObj = this; // This, in this context, refer to jQuery object
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/**
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* Initializing the plugin calling the start function
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*
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* @return boolean false
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*/
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function _initialize() {
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_start(this,jQueryMatchedObj); // This, in this context, refer to object (link) which the user have clicked
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return false; // Avoid the browser following the link
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}
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/**
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* Start the jQuery lightBox plugin
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*
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* @param object objClicked The object (link) whick the user have clicked
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* @param object jQueryMatchedObj The jQuery object with all elements matched
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*/
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function _start(objClicked,jQueryMatchedObj) {
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// Hime some elements to avoid conflict with overlay in IE. These elements appear above the overlay.
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$('embed, object, select').css({ 'visibility' : 'hidden' });
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// Call the function to create the markup structure; style some elements; assign events in some elements.
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_set_interface();
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// Unset total images in imageArray
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settings.imageArray.length = 0;
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// Unset image active information
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settings.activeImage = 0;
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// We have an image set? Or just an image? Let<65>s see it.
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if ( jQueryMatchedObj.length == 1 ) {
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settings.imageArray.push(new Array(objClicked.getAttribute('href'),objClicked.getAttribute('title')));
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} else {
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// Add an Array (as many as we have), with href and title atributes, inside the Array that storage the images references
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for ( var i = 0; i < jQueryMatchedObj.length; i++ ) {
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settings.imageArray.push(new Array(jQueryMatchedObj[i].getAttribute('href'),jQueryMatchedObj[i].getAttribute('title')));
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}
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}
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while ( settings.imageArray[settings.activeImage][0] != objClicked.getAttribute('href') ) {
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settings.activeImage++;
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}
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// Call the function that prepares image exibition
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_set_image_to_view();
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}
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/**
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* Create the jQuery lightBox plugin interface
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*
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* The HTML markup will be like that:
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<div id="jquery-overlay"></div>
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<div id="jquery-lightbox">
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<div id="lightbox-container-image-box">
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<div id="lightbox-container-image">
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<img src="../fotos/XX.jpg" id="lightbox-image">
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<div id="lightbox-nav">
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<a href="#" id="lightbox-nav-btnPrev"></a>
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<a href="#" id="lightbox-nav-btnNext"></a>
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</div>
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<div id="lightbox-loading">
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<a href="#" id="lightbox-loading-link">
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<img src="../images/lightbox-ico-loading.gif">
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</a>
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</div>
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</div>
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</div>
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<div id="lightbox-container-image-data-box">
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<div id="lightbox-container-image-data">
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<div id="lightbox-image-details">
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<span id="lightbox-image-details-caption"></span>
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<span id="lightbox-image-details-currentNumber"></span>
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</div>
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<div id="lightbox-secNav">
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<a href="#" id="lightbox-secNav-btnClose">
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<img src="../images/lightbox-btn-close.gif">
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</a>
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</div>
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</div>
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</div>
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</div>
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*
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*/
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function _set_interface() {
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// Apply the HTML markup into body tag
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$('body').append('<div id="jquery-overlay"></div><div id="jquery-lightbox"><div id="lightbox-container-image-box"><div id="lightbox-container-image"><img id="lightbox-image"><div style="" id="lightbox-nav"><a href="#" id="lightbox-nav-btnPrev"></a><a href="#" id="lightbox-nav-btnNext"></a></div><div id="lightbox-loading"><a href="#" id="lightbox-loading-link"><img src="' + settings.imageLoading + '"></a></div></div></div><div id="lightbox-container-image-data-box"><div id="lightbox-container-image-data"><div id="lightbox-image-details"><span id="lightbox-image-details-caption"></span><span id="lightbox-image-details-currentNumber"></span></div><div id="lightbox-secNav"><a href="#" id="lightbox-secNav-btnClose"><img src="' + settings.imageBtnClose + '"></a></div></div></div></div>');
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// Get page sizes
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var arrPageSizes = ___getPageSize();
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// Style overlay and show it
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$('#jquery-overlay').css({
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backgroundColor: settings.overlayBgColor,
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opacity: settings.overlayOpacity,
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width: arrPageSizes[0],
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height: arrPageSizes[1]
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}).fadeIn();
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// Get page scroll
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var arrPageScroll = ___getPageScroll();
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// Calculate top and left offset for the jquery-lightbox div object and show it
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$('#jquery-lightbox').css({
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top: arrPageScroll[1] + (arrPageSizes[3] / 10),
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left: arrPageScroll[0]
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}).show();
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// Assigning click events in elements to close overlay
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$('#jquery-overlay,#jquery-lightbox').click(function() {
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_finish();
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});
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// Assign the _finish function to lightbox-loading-link and lightbox-secNav-btnClose objects
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$('#lightbox-loading-link,#lightbox-secNav-btnClose').click(function() {
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_finish();
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return false;
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});
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// If window was resized, calculate the new overlay dimensions
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$(window).resize(function() {
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// Get page sizes
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var arrPageSizes = ___getPageSize();
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// Style overlay and show it
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$('#jquery-overlay').css({
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width: arrPageSizes[0],
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height: arrPageSizes[1]
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});
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// Get page scroll
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var arrPageScroll = ___getPageScroll();
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// Calculate top and left offset for the jquery-lightbox div object and show it
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$('#jquery-lightbox').css({
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top: arrPageScroll[1] + (arrPageSizes[3] / 10),
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left: arrPageScroll[0]
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});
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});
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}
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/**
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* Prepares image exibition; doing a image<EFBFBD>s preloader to calculate it<EFBFBD>s size
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*
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*/
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function _set_image_to_view() { // show the loading
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// Show the loading
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$('#lightbox-loading').show();
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if ( settings.fixedNavigation ) {
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$('#lightbox-image,#lightbox-container-image-data-box,#lightbox-image-details-currentNumber').hide();
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} else {
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// Hide some elements
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$('#lightbox-image,#lightbox-nav,#lightbox-nav-btnPrev,#lightbox-nav-btnNext,#lightbox-container-image-data-box,#lightbox-image-details-currentNumber').hide();
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}
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// Image preload process
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var objImagePreloader = new Image();
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objImagePreloader.onload = function() {
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$('#lightbox-image').attr('src',settings.imageArray[settings.activeImage][0]);
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// Perfomance an effect in the image container resizing it
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_resize_container_image_box(objImagePreloader.width,objImagePreloader.height);
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// clear onLoad, IE behaves irratically with animated gifs otherwise
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objImagePreloader.onload=function(){};
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};
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objImagePreloader.src = settings.imageArray[settings.activeImage][0];
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};
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/**
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* Perfomance an effect in the image container resizing it
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*
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* @param integer intImageWidth The image<EFBFBD>s width that will be showed
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* @param integer intImageHeight The image<EFBFBD>s height that will be showed
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*/
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function _resize_container_image_box(intImageWidth,intImageHeight) {
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// Get current width and height
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var intCurrentWidth = $('#lightbox-container-image-box').width();
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var intCurrentHeight = $('#lightbox-container-image-box').height();
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// Get the width and height of the selected image plus the padding
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var intWidth = (intImageWidth + (settings.containerBorderSize * 2)); // Plus the image<67>s width and the left and right padding value
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var intHeight = (intImageHeight + (settings.containerBorderSize * 2)); // Plus the image<67>s height and the left and right padding value
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// Diferences
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var intDiffW = intCurrentWidth - intWidth;
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var intDiffH = intCurrentHeight - intHeight;
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// Perfomance the effect
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$('#lightbox-container-image-box').animate({ width: intWidth, height: intHeight },settings.containerResizeSpeed,function() { _show_image(); });
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if ( ( intDiffW == 0 ) && ( intDiffH == 0 ) ) {
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if ( $.browser.msie ) {
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___pause(250);
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} else {
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___pause(100);
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}
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}
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$('#lightbox-container-image-data-box').css({ width: intImageWidth });
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$('#lightbox-nav-btnPrev,#lightbox-nav-btnNext').css({ height: intImageHeight + (settings.containerBorderSize * 2) });
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};
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/**
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* Show the prepared image
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*
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*/
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function _show_image() {
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$('#lightbox-loading').hide();
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$('#lightbox-image').fadeIn(function() {
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_show_image_data();
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_set_navigation();
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});
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_preload_neighbor_images();
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};
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/**
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* Show the image information
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*
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*/
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function _show_image_data() {
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$('#lightbox-container-image-data-box').slideDown('fast');
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$('#lightbox-image-details-caption').hide();
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if ( settings.imageArray[settings.activeImage][1] ) {
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$('#lightbox-image-details-caption').html(settings.imageArray[settings.activeImage][1]).show();
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}
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// If we have a image set, display 'Image X of X'
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/*if ( settings.imageArray.length > 1 ) {
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$('#lightbox-image-details-currentNumber').html(settings.txtImage + ' ' + ( settings.activeImage + 1 ) + ' ' + settings.txtOf + ' ' + settings.imageArray.length).show();
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}*/
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}
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/**
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* Display the button navigations
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*
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*/
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function _set_navigation() {
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$('#lightbox-nav').show();
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// Instead to define this configuration in CSS file, we define here. And it<69>s need to IE. Just.
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$('#lightbox-nav-btnPrev,#lightbox-nav-btnNext').css({ 'background' : 'transparent url(' + settings.imageBlank + ') no-repeat' });
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// Show the prev button, if not the first image in set
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if ( settings.activeImage != 0 ) {
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if ( settings.fixedNavigation ) {
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$('#lightbox-nav-btnPrev').css({ 'background' : 'url(' + settings.imageBtnPrev + ') left 15% no-repeat' })
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.unbind()
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.bind('click',function() {
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settings.activeImage = settings.activeImage - 1;
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_set_image_to_view();
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return false;
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});
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} else {
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// Show the images button for Next buttons
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$('#lightbox-nav-btnPrev').unbind().hover(function() {
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$(this).css({ 'background' : 'url(' + settings.imageBtnPrev + ') left 15% no-repeat' });
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},function() {
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$(this).css({ 'background' : 'transparent url(' + settings.imageBlank + ') no-repeat' });
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}).show().bind('click',function() {
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settings.activeImage = settings.activeImage - 1;
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_set_image_to_view();
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return false;
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});
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}
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}
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// Show the next button, if not the last image in set
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if ( settings.activeImage != ( settings.imageArray.length -1 ) ) {
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if ( settings.fixedNavigation ) {
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$('#lightbox-nav-btnNext').css({ 'background' : 'url(' + settings.imageBtnNext + ') right 15% no-repeat' })
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.unbind()
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.bind('click',function() {
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settings.activeImage = settings.activeImage + 1;
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_set_image_to_view();
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return false;
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});
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} else {
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// Show the images button for Next buttons
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$('#lightbox-nav-btnNext').unbind().hover(function() {
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$(this).css({ 'background' : 'url(' + settings.imageBtnNext + ') right 15% no-repeat' });
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},function() {
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$(this).css({ 'background' : 'transparent url(' + settings.imageBlank + ') no-repeat' });
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}).show().bind('click',function() {
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settings.activeImage = settings.activeImage + 1;
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_set_image_to_view();
|
|||
|
|
return false;
|
|||
|
|
});
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
// Enable keyboard navigation
|
|||
|
|
_enable_keyboard_navigation();
|
|||
|
|
}
|
|||
|
|
/**
|
|||
|
|
* Enable a support to keyboard navigation
|
|||
|
|
*
|
|||
|
|
*/
|
|||
|
|
function _enable_keyboard_navigation() {
|
|||
|
|
$(document).keydown(function(objEvent) {
|
|||
|
|
_keyboard_action(objEvent);
|
|||
|
|
});
|
|||
|
|
}
|
|||
|
|
/**
|
|||
|
|
* Disable the support to keyboard navigation
|
|||
|
|
*
|
|||
|
|
*/
|
|||
|
|
function _disable_keyboard_navigation() {
|
|||
|
|
$(document).unbind();
|
|||
|
|
}
|
|||
|
|
/**
|
|||
|
|
* Perform the keyboard actions
|
|||
|
|
*
|
|||
|
|
*/
|
|||
|
|
function _keyboard_action(objEvent) {
|
|||
|
|
// To ie
|
|||
|
|
if ( objEvent == null ) {
|
|||
|
|
keycode = event.keyCode;
|
|||
|
|
escapeKey = 27;
|
|||
|
|
// To Mozilla
|
|||
|
|
} else {
|
|||
|
|
keycode = objEvent.keyCode;
|
|||
|
|
escapeKey = objEvent.DOM_VK_ESCAPE;
|
|||
|
|
}
|
|||
|
|
// Get the key in lower case form
|
|||
|
|
key = String.fromCharCode(keycode).toLowerCase();
|
|||
|
|
// Verify the keys to close the ligthBox
|
|||
|
|
if ( ( key == settings.keyToClose ) || ( key == 'x' ) || ( keycode == escapeKey ) ) {
|
|||
|
|
_finish();
|
|||
|
|
}
|
|||
|
|
// Verify the key to show the previous image
|
|||
|
|
if ( ( key == settings.keyToPrev ) || ( keycode == 37 ) ) {
|
|||
|
|
// If we<77>re not showing the first image, call the previous
|
|||
|
|
if ( settings.activeImage != 0 ) {
|
|||
|
|
settings.activeImage = settings.activeImage - 1;
|
|||
|
|
_set_image_to_view();
|
|||
|
|
_disable_keyboard_navigation();
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
// Verify the key to show the next image
|
|||
|
|
if ( ( key == settings.keyToNext ) || ( keycode == 39 ) ) {
|
|||
|
|
// If we<77>re not showing the last image, call the next
|
|||
|
|
if ( settings.activeImage != ( settings.imageArray.length - 1 ) ) {
|
|||
|
|
settings.activeImage = settings.activeImage + 1;
|
|||
|
|
_set_image_to_view();
|
|||
|
|
_disable_keyboard_navigation();
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
/**
|
|||
|
|
* Preload prev and next images being showed
|
|||
|
|
*
|
|||
|
|
*/
|
|||
|
|
function _preload_neighbor_images() {
|
|||
|
|
if ( (settings.imageArray.length -1) > settings.activeImage ) {
|
|||
|
|
objNext = new Image();
|
|||
|
|
objNext.src = settings.imageArray[settings.activeImage + 1][0];
|
|||
|
|
}
|
|||
|
|
if ( settings.activeImage > 0 ) {
|
|||
|
|
objPrev = new Image();
|
|||
|
|
objPrev.src = settings.imageArray[settings.activeImage -1][0];
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
/**
|
|||
|
|
* Remove jQuery lightBox plugin HTML markup
|
|||
|
|
*
|
|||
|
|
*/
|
|||
|
|
function _finish() {
|
|||
|
|
$('#jquery-lightbox').remove();
|
|||
|
|
$('#jquery-overlay').fadeOut(function() { $('#jquery-overlay').remove(); });
|
|||
|
|
// Show some elements to avoid conflict with overlay in IE. These elements appear above the overlay.
|
|||
|
|
$('embed, object, select').css({ 'visibility' : 'visible' });
|
|||
|
|
}
|
|||
|
|
/**
|
|||
|
|
/ THIRD FUNCTION
|
|||
|
|
* getPageSize() by quirksmode.com
|
|||
|
|
*
|
|||
|
|
* @return Array Return an array with page width, height and window width, height
|
|||
|
|
*/
|
|||
|
|
function ___getPageSize() {
|
|||
|
|
var xScroll, yScroll;
|
|||
|
|
if (window.innerHeight && window.scrollMaxY) {
|
|||
|
|
xScroll = window.innerWidth + window.scrollMaxX;
|
|||
|
|
yScroll = window.innerHeight + window.scrollMaxY;
|
|||
|
|
} else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac
|
|||
|
|
xScroll = document.body.scrollWidth;
|
|||
|
|
yScroll = document.body.scrollHeight;
|
|||
|
|
} else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
|
|||
|
|
xScroll = document.body.offsetWidth;
|
|||
|
|
yScroll = document.body.offsetHeight;
|
|||
|
|
}
|
|||
|
|
var windowWidth, windowHeight;
|
|||
|
|
if (self.innerHeight) { // all except Explorer
|
|||
|
|
if(document.documentElement.clientWidth){
|
|||
|
|
windowWidth = document.documentElement.clientWidth;
|
|||
|
|
} else {
|
|||
|
|
windowWidth = self.innerWidth;
|
|||
|
|
}
|
|||
|
|
windowHeight = self.innerHeight;
|
|||
|
|
} else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
|
|||
|
|
windowWidth = document.documentElement.clientWidth;
|
|||
|
|
windowHeight = document.documentElement.clientHeight;
|
|||
|
|
} else if (document.body) { // other Explorers
|
|||
|
|
windowWidth = document.body.clientWidth;
|
|||
|
|
windowHeight = document.body.clientHeight;
|
|||
|
|
}
|
|||
|
|
// for small pages with total height less then height of the viewport
|
|||
|
|
if(yScroll < windowHeight){
|
|||
|
|
pageHeight = windowHeight;
|
|||
|
|
} else {
|
|||
|
|
pageHeight = yScroll;
|
|||
|
|
}
|
|||
|
|
// for small pages with total width less then width of the viewport
|
|||
|
|
if(xScroll < windowWidth){
|
|||
|
|
pageWidth = xScroll;
|
|||
|
|
} else {
|
|||
|
|
pageWidth = windowWidth;
|
|||
|
|
}
|
|||
|
|
arrayPageSize = new Array(pageWidth,pageHeight,windowWidth,windowHeight);
|
|||
|
|
return arrayPageSize;
|
|||
|
|
};
|
|||
|
|
/**
|
|||
|
|
/ THIRD FUNCTION
|
|||
|
|
* getPageScroll() by quirksmode.com
|
|||
|
|
*
|
|||
|
|
* @return Array Return an array with x,y page scroll values.
|
|||
|
|
*/
|
|||
|
|
function ___getPageScroll() {
|
|||
|
|
var xScroll, yScroll;
|
|||
|
|
if (self.pageYOffset) {
|
|||
|
|
yScroll = self.pageYOffset;
|
|||
|
|
xScroll = self.pageXOffset;
|
|||
|
|
} else if (document.documentElement && document.documentElement.scrollTop) { // Explorer 6 Strict
|
|||
|
|
yScroll = document.documentElement.scrollTop;
|
|||
|
|
xScroll = document.documentElement.scrollLeft;
|
|||
|
|
} else if (document.body) {// all other Explorers
|
|||
|
|
yScroll = document.body.scrollTop;
|
|||
|
|
xScroll = document.body.scrollLeft;
|
|||
|
|
}
|
|||
|
|
arrayPageScroll = new Array(xScroll,yScroll);
|
|||
|
|
return arrayPageScroll;
|
|||
|
|
};
|
|||
|
|
/**
|
|||
|
|
* Stop the code execution from a escified time in milisecond
|
|||
|
|
*
|
|||
|
|
*/
|
|||
|
|
function ___pause(ms) {
|
|||
|
|
var date = new Date();
|
|||
|
|
curDate = null;
|
|||
|
|
do { var curDate = new Date(); }
|
|||
|
|
while ( curDate - date < ms);
|
|||
|
|
};
|
|||
|
|
// Return the jQuery object for chaining. The unbind method is used to avoid click conflict when the plugin is called more than once
|
|||
|
|
return this.unbind('click').click(_initialize);
|
|||
|
|
};
|
|||
|
|
})(jQuery); // Call and execute the function immediately passing the jQuery object
|