/**
 * Imgzoom 1.2 (Requires the dimensions-plugin)
 *
 * Opens links that point to images in the "Imgzoom" (zooms out the image)
 *
 * Usage: jQuery.imgzoom();
 *
 * @class imgzoom
 * @param {Object} conf, custom config-object {speed: 500, dontFadeIn: 0, hideClicked: 0} // pelase note that i've removed the ability to fade in/out the zoomed image because it caused a bug in IE. If you don't care about IE uncomment the opacity-stuff on line ~50
 *
 * Copyright (c) 2008 Andreas Lagerkvist (andreaslagerkvist.com)
 * Released under a GNU General Public License v3 (http://creativecommons.org/licenses/by/3.0/)
 */
jQuery.imgzoom = function(conf) {
 // Some config. If you set dontFadeIn: 0 and hideClicked: 0 imgzoom will act exactly like fancyzoom
 var config = jQuery.extend({
 speed: 200, // Animation-speed of zoom
 dontFadeIn: 1, // 1 = Do not fade in, 0 = Do fade in
 hideClicked: 0, // Whether to hide the image that was clicked to bring up the imgzoom
 loading: 'Loading...'
 }, conf);
 config.doubleSpeed = config.speed / 4; // Used for fading in the close-button

 jQuery(document.body).click(function(e) {
 var clickedElement = jQuery(e.target);
 var clickedLink = clickedElement.is('a') ? clickedElement : clickedElement.parents('a');
 clickedLink = (clickedLink && clickedLink.is('a') && clickedLink.attr('href').search(/(.*)\.(jpg|jpeg|gif|png|bmp|tif|tiff)/gi) != -1) ? clickedLink : false;
 var clickedImg = (clickedLink && clickedLink.find('img').length) ? clickedLink.find('img') : false; 

 if(clickedLink) {
 clickedLink.oldText = clickedLink.text();

 clickedLink.setLoadingImg = function() {
 if(clickedImg) {
 clickedImg.css({opacity: '0.5'});
 }
 else {
 clickedLink.text(config.loading);
 }
 };

 clickedLink.setNotLoadingImg = function() {
 if(clickedImg) {
 clickedImg.css({opacity: '1'});
 }
 else {
 clickedLink.text(clickedLink.oldText);
 }
 };

 var displayImgSrc = clickedLink.attr('href');
 if(jQuery('div.imgzoom img[src="' +displayImgSrc +'"]').length) {
 return false;
 }
 var preloadOnload = function() {
 clickedLink.setNotLoadingImg();
 var linkContainsImg = clickedLink.find('img').length;
 var dimElement = linkContainsImg ? clickedLink.find('img') : clickedLink;
 var hideClicked = linkContainsImg ? config.hideClicked : 0; 
 var offset = dimElement.offset(); 
 var imgzoomBefore = { 
 width: dimElement.outerWidth(), 
 height: dimElement.outerHeight(), 
 left: offset.left, 
 top: offset.top
 };
 var imgzoom = jQuery('<div><img src="' +displayImgSrc +'" alt="" /></div>').css({position: 'absolute'}).appendTo(document.body); 
 var imgzoomAfter = { 
 width: imgzoom.outerWidth(), 
 height: imgzoom.outerHeight()
 };
 var windowDim = {
 width: jQuery(window).width(), 
 height: jQuery(window).height()
 };
 if(imgzoomAfter.width > windowDim.width) {
 var nWidth = windowDim.width - 100;
 imgzoomAfter.height = (nWidth / imgzoomAfter.width) * imgzoomAfter.height;
 imgzoomAfter.width = nWidth;
 }
 if(imgzoomAfter.height > windowDim.height) {
 var nHeight = windowDim.height - 100;
 imgzoomAfter.width = (nHeight / imgzoomAfter.height) * imgzoomAfter.width;
 imgzoomAfter.height = nHeight;
 }
 imgzoomAfter.left = (windowDim.width - imgzoomAfter.width) / 2 + jQuery(window).scrollLeft();
 imgzoomAfter.top = (windowDim.height - imgzoomAfter.height) / 2 + jQuery(window).scrollTop();
 var closeButton = jQuery('<a href="#">Close</a>').appendTo(imgzoom).hide(); 
 if(hideClicked) {
 clickedLink.css({visibility: 'hidden'});
 }
 imgzoom.addClass('imgzoom').css(imgzoomBefore).animate(imgzoomAfter, config.speed, function() {
 closeButton.fadeIn(config.doubleSpeed);
 });
 var hideImgzoom = function() {
 closeButton.fadeOut(config.doubleSpeed, function() {
 imgzoom.animate(imgzoomBefore, config.speed, function() {
 clickedLink.css({visibility: 'visible'});
 imgzoom.remove();
 });
 });
 return false;
 };
 imgzoom.click(hideImgzoom);
 closeButton.click(hideImgzoom);
 };
 var preload = new Image();
 preload.src = displayImgSrc;
 if(preload.complete) {
 preloadOnload();
 }
 else {
 clickedLink.setLoadingImg();
 preload.onload = preloadOnload;
 }
 return false;
 }
 });
};