/*
 * Thickbox 3.1 - One Box To Rule Them All.
 * By Cody Lindley (http://www.codylindley.com)
 * Copyright (c) 2007 cody lindley
 * Licensed under the MIT License: http://www.opensource.org/licenses/mit-license.php
*/

var labelGalleryNext, labelGalleryPrev, labelGalleryClose, labelGalleryOpenInNewWindow, labelGalleryEsc, labelGalleryImage, labelGalleryImageOf;

var tb_galleryWrapperClass = "galleryWrapper"; // Gallery Wrapper Css Class. Thickbox gallery wont work withouth this
var tb_ThumbLinkCssClass = "thickbox"; // Css class that thickbox handle with
var tb_previewImageWidth = "900"; // Full image width. If it is empty the full image with will be the same as thumbnail width
var tb_showPrevNext = true; 
var tb_openFullImageInNewWindow = false; // If it is false, click on image will close preview pane, else, click on image will open full image in new window 

var tb_pathToImage = "DesignTemplates/Epidaurus_content/images/_gui/loadingAnimation.gif";
var tb_domChunk = "a." + tb_ThumbLinkCssClass + ", area." + tb_ThumbLinkCssClass + ", input." + tb_ThumbLinkCssClass // Where to apply thickbox

/*!!!!!!!!!!!!!!!!! edit below this line at your own risk !!!!!!!!!!!!!!!!!!!!!!!*/

//on page load call tb_init
$(document).ready(function(){ 
	tb_handleRelAttributes(tb_domChunk); // add rel attributes if they no exists
	tb_initActions();
});

function tb_initActions() {
	tb_init(tb_domChunk); // pass where to apply thickbox
	imgLoader = new Image(); // preload image
	imgLoader.src = tb_pathToImage;
}

//add thickbox to href & area elements that have a class of .thickbox
function tb_init(domChunk){
	$(domChunk).click(function(){
		var t = this.getElementsByTagName("img")[0].title || this.title || this.name || null;
		var a = tb_handlePreviewImageLink(this.getElementsByTagName("img")[0].src) || this.href || this.alt;
		var g = this.rel || false;		
		tb_show(t,a,g);
		this.blur();
		return false;
	});
}

function tb_show(caption, url, imageGroup) {//function called when the user clicks on a thickbox link

	try {
		if (typeof document.body.style.maxHeight === "undefined") {//if IE 6
			$("body","html").css({height: "100%", width: "100%"});
			$("html").css("overflow","hidden");
			if (document.getElementById("TB_HideSelect") === null) {//iframe to hide select elements in ie6
				$("body").append("<iframe id='TB_HideSelect'></iframe><div id='TB_overlay'></div><div id='TB_window'></div>");
				$("#TB_overlay").click(tb_remove);
			}
		}else{//all others
			if(document.getElementById("TB_overlay") === null){
				$("body").append("<div id='TB_overlay'></div><div id='TB_window'></div>");
				$("#TB_overlay").click(tb_remove);
			}
		}
		
		if(tb_detectMacXFF()){
			$("#TB_overlay").addClass("TB_overlayMacFFBGHack");//use png overlay so hide flash
		}else{
			$("#TB_overlay").addClass("TB_overlayBG");//use background and opacity
		}
		
		if(caption===null){caption="";}
		$("body").append("<div id='TB_load'><img src='" + imgLoader.src+"' /></div>"); //add loader to the page
		$('#TB_load').show();//show loader
		
		var baseURL;

		if(url.indexOf("?")!==-1){ //ff there is a query string involved
			baseURL = url.substr(0, url.indexOf("?"));
		}else{ 
			baseURL = url;
		}
	   
		var urlString = /\.jpg$|\.jpeg$|\.png$|\.gif$|\.bmp$|\.axd$/;
		var urlType = baseURL.toLowerCase().match(urlString);

		if(urlType == '.axd' || urlType == '.jpg' || urlType == '.jpeg' || urlType == '.png' || urlType == '.gif' || urlType == '.bmp'){//code to show images
			
			TB_PrevCaption = "";
			TB_PrevURL = "";
			TB_PrevHTML = "";
			TB_NextCaption = "";
			TB_NextURL = "";
			TB_NextHTML = "";
			TB_imageCount = "";
			TB_FoundURL = false;
			if(imageGroup && tb_showPrevNext){
				TB_TempArray = $("a[@rel="+imageGroup+"]").get();
				for (TB_Counter = 0; ((TB_Counter < TB_TempArray.length) && (TB_NextHTML === "")); TB_Counter++) {
					
					var urlTypeTemp = TB_TempArray[TB_Counter].href.toLowerCase().match(urlString);
					
					var TB_Url = (urlType == ".axd")? tb_handlePreviewImageLink(TB_TempArray[TB_Counter].getElementsByTagName("img")[0].src) : TB_TempArray[TB_Counter].href;
					
					if (!(TB_Url == url)) {						
						if (TB_FoundURL) {
							TB_NextCaption = TB_TempArray[TB_Counter].title;
							TB_NextURL = TB_Url;
							TB_NextHTML = "<span id=\"TB_next\">  <a href=\"#\" title=\"" + labelGalleryNext + "\"><span>" + labelGalleryNext + "</span></a></span>";
						} else {
							TB_PrevCaption = TB_TempArray[TB_Counter].title;
							TB_PrevURL = TB_Url;
							TB_PrevHTML = "<span id=\"TB_prev\">  <a href=\"#\" title=\"" + labelGalleryPrev + "\"><span>" + labelGalleryPrev + "</span></a></span>";
						}
					} else {
						TB_FoundURL = true;
						TB_imageCount = labelGalleryImage + " " + (TB_Counter + 1) + " " + labelGalleryImageOf + " " + (TB_TempArray.length);											
					}
				}
			}

			imgPreloader = new Image();
			imgPreloader.onload = function(){		
				imgPreloader.onload = null;
					
				// Resizing large images - orginal by Christian Montoya edited by me.
				var pagesize = tb_getPageSize();
				var x = pagesize[0] - 150;
				var y = pagesize[1] - 150;
				var imageWidth = imgPreloader.width;
				var imageHeight = imgPreloader.height;
				if (imageWidth > x) {
					imageHeight = imageHeight * (x / imageWidth); 
					imageWidth = x; 
					if (imageHeight > y) { 
						imageWidth = imageWidth * (y / imageHeight); 
						imageHeight = y; 
					}
				} else if (imageHeight > y) { 
					imageWidth = imageWidth * (y / imageHeight); 
					imageHeight = y; 
					if (imageWidth > x) { 
						imageHeight = imageHeight * (x / imageWidth); 
						imageWidth = x;
					}
				}
				// End Resizing
				
				TB_WIDTH = imageWidth + 30;
				TB_HEIGHT = imageHeight + 60;
				
				if (!tb_openFullImageInNewWindow) {
					$("#TB_window").append("<a href=\"\" id=\"TB_ImageOff\" title=\"" + labelGalleryClose + "\"><img id=\"TB_Image\" src=\"" + url + "\" width=\"" + imageWidth + "\" height=\"" + imageHeight + "\" alt=\"" + caption + "\" title=\"" + labelGalleryClose + "\"/></a>" + "<div id='TB_caption'>" + caption + "<div id='TB_secondLine'>" + TB_imageCount + TB_PrevHTML + TB_NextHTML + "</div></div><div id=\"TB_closeWindow\"><a href=\"#\" id=\"TB_closeWindowButton\" title=\"" + labelGalleryClose + "\">" + labelGalleryClose + "</a> " + labelGalleryEsc + "</div>"); 		
				} 
				else {
					$("#TB_window").append("<a href=\"\" id=\"TB_ImageInNewWindow\" title=\"" + labelGalleryOpenInNewWindow + "\"><img id=\"TB_Image\" src=\"" + url + "\" width=\"" + imageWidth + "\" height=\"" + imageHeight + "\" alt=\"" + caption + "\" title=\"" + labelGalleryOpenInNewWindow + "\"/></a>" + "<div id='TB_caption'>" + caption + "<div id='TB_secondLine'>" + labelGalleryOpenInNewWindow + "</div></div><div id=\"TB_closeWindow\"><a href=\"#\" id=\"TB_closeWindowButton\" title=\"" + labelGalleryClose + "\">" + labelGalleryClose + "</a> " + labelGalleryEsc + "</div>"); 
				}
				
				$("#TB_closeWindowButton").click(tb_remove);
				
				if (!(TB_PrevHTML === "")) {
					function goPrev(){
						if($(document).unbind("click",goPrev)){$(document).unbind("click",goPrev);}
						$("#TB_window").remove();
						$("body").append("<div id='TB_window'></div>");
						tb_show(TB_PrevCaption, TB_PrevURL, imageGroup);
						return false;	
					}
					$("#TB_prev").click(goPrev);
				}
				
				if (!(TB_NextHTML === "")) {		
					function goNext(){
						$("#TB_window").remove();
						$("body").append("<div id='TB_window'></div>");
						tb_show(TB_NextCaption, TB_NextURL, imageGroup);				
						return false;	
					}
					$("#TB_next").click(goNext);
					
				}
	
				document.onkeydown = function(e){ 	
					if (e == null) { // ie
						keycode = event.keyCode;
					} else { // mozilla
						keycode = e.which;
					}
					if(keycode == 27){ // close
						tb_remove();
					} else if(keycode == 190){ // display previous image
						if(!(TB_NextHTML == "")){
							document.onkeydown = "";
							goNext();
						}
					} else if(keycode == 188){ // display next image
						if(!(TB_PrevHTML == "")){
							document.onkeydown = "";
							goPrev();
						}
					}	
				};
				
				tb_position();
				$("#TB_load").remove();
				$("#TB_ImageOff").click(tb_remove);
				$("#TB_ImageInNewWindow").url = url;
				$("#TB_ImageInNewWindow").click(tb_openInNewWindow);
				$("#TB_window").css({display:"block"}); //for safari using css instead of show
			};
			
			imgPreloader.src = url;
		}else{//code to show html
			
			var queryString = url.replace(/^[^\?]+\??/,'');
			var params = tb_parseQuery( queryString );

			TB_WIDTH = (params['width']*1) + 30 || 630; //defaults to 630 if no paramaters were added to URL
			TB_HEIGHT = (params['height']*1) + 40 || 440; //defaults to 440 if no paramaters were added to URL
			ajaxContentW = TB_WIDTH - 30;
			ajaxContentH = TB_HEIGHT - 45;
			
			if(url.indexOf('TB_iframe') != -1){// either iframe or ajax window		
					urlNoQuery = url.split('TB_');
					$("#TB_iframeContent").remove();
					if(params['modal'] != "true"){//iframe no modal
						$("#TB_window").append("<div id='TB_title'><div id='TB_ajaxWindowTitle'>"+caption+"</div><div id='TB_closeAjaxWindow'><a href='#' id='TB_closeWindowButton' title='Close'>close</a> or Esc Key</div></div><iframe frameborder='0' hspace='0' src='"+urlNoQuery[0]+"' id='TB_iframeContent' name='TB_iframeContent"+Math.round(Math.random()*1000)+"' onload='tb_showIframe()' style='width:"+(ajaxContentW + 29)+"px;height:"+(ajaxContentH + 17)+"px;' > </iframe>");
					}else{//iframe modal
					$("#TB_overlay").unbind();
						$("#TB_window").append("<iframe frameborder='0' hspace='0' src='"+urlNoQuery[0]+"' id='TB_iframeContent' name='TB_iframeContent"+Math.round(Math.random()*1000)+"' onload='tb_showIframe()' style='width:"+(ajaxContentW + 29)+"px;height:"+(ajaxContentH + 17)+"px;'> </iframe>");
					}
			}else{// not an iframe, ajax
					if($("#TB_window").css("display") != "block"){
						if(params['modal'] != "true"){//ajax no modal
						$("#TB_window").append("<div id='TB_title'><div id='TB_ajaxWindowTitle'>"+caption+"</div><div id='TB_closeAjaxWindow'><a href='#' id='TB_closeWindowButton'>close</a> or Esc Key</div></div><div id='TB_ajaxContent' style='width:"+ajaxContentW+"px;height:"+ajaxContentH+"px'></div>");
						}else{//ajax modal
						$("#TB_overlay").unbind();
						$("#TB_window").append("<div id='TB_ajaxContent' class='TB_modal' style='width:"+ajaxContentW+"px;height:"+ajaxContentH+"px;'></div>");	
						}
					}else{//this means the window is already up, we are just loading new content via ajax
						$("#TB_ajaxContent")[0].style.width = ajaxContentW +"px";
						$("#TB_ajaxContent")[0].style.height = ajaxContentH +"px";
						$("#TB_ajaxContent")[0].scrollTop = 0;
						$("#TB_ajaxWindowTitle").html(caption);
					}
			}
					
			$("#TB_closeWindowButton").click(tb_remove);
			
				if(url.indexOf('TB_inline') != -1){	
					$("#TB_ajaxContent").append($('#' + params['inlineId']).children());
					$("#TB_window").unload(function () {
						$('#' + params['inlineId']).append( $("#TB_ajaxContent").children() ); // move elements back when you're finished
					});
					tb_position();
					$("#TB_load").remove();
					$("#TB_window").css({display:"block"}); 
				}else if(url.indexOf('TB_iframe') != -1){
					tb_position();
					if($.browser.safari){//safari needs help because it will not fire iframe onload
						$("#TB_load").remove();
						$("#TB_window").css({display:"block"});
					}
				}else{
					$("#TB_ajaxContent").load(url += "&random=" + (new Date().getTime()),function(){//to do a post change this load method
						tb_position();
						$("#TB_load").remove();
						tb_init("#TB_ajaxContent a." + tb_ThumbLinkCssClass);
						$("#TB_window").css({display:"block"});
					});
				}
			
		}

		if(!params['modal']){
			document.onkeyup = function(e){ 	
				if (e == null) { // ie
					keycode = event.keyCode;
				} else { // mozilla
					keycode = e.which;
				}
				if(keycode == 27){ // close
					tb_remove();
				}	
			};
		}
		
	} catch(e) {
		//nothing here
	}
}

//helper functions below
function tb_showIframe(){
	$("#TB_load").remove();
	$("#TB_window").css({display:"block"});
}

function tb_remove() {
 	$("#TB_imageOff").unbind("click");
	$("#TB_closeWindowButton").unbind("click");
	$("#TB_window").fadeOut("fast",function(){$('#TB_window,#TB_overlay,#TB_HideSelect').trigger("unload").unbind().remove();});
	$("#TB_load").remove();
	if (typeof document.body.style.maxHeight == "undefined") {//if IE 6
		$("body","html").css({height: "auto", width: "auto"});
		$("html").css("overflow","");
	}
	document.onkeydown = "";
	document.onkeyup = "";
	return false;
}

function tb_openInNewWindow() {	
	$("#TB_ImageInNewWindow").unbind("click");
	$("#TB_closeWindowButton").unbind("click");
	$("#TB_window").fadeOut("fast",function(){$('#TB_window,#TB_overlay,#TB_HideSelect').trigger("unload").unbind().remove();});
	$("#TB_load").remove();
	if (typeof document.body.style.maxHeight == "undefined") {//if IE 6
		$("body","html").css({height: "auto", width: "auto"});
		$("html").css("overflow","");
	}
	
	document.onkeydown = "";
	document.onkeyup = "";
	
	var linkUrl = $("#TB_Image")[0].src;
	
	window.open(linkUrl.substring(0, linkUrl.indexOf("&")));
	
	return false;
}

function tb_position() {
$("#TB_window").css({marginLeft: '-' + parseInt((TB_WIDTH / 2),10) + 'px', width: TB_WIDTH + 'px'});
	if ( !(jQuery.browser.msie && jQuery.browser.version < 7)) { // take away IE6
		$("#TB_window").css({marginTop: '-' + parseInt((TB_HEIGHT / 2),10) + 'px'});
	}
}

function tb_parseQuery ( query ) {
   var Params = {};
   if ( ! query ) {return Params;}// return empty object
   var Pairs = query.split(/[;&]/);
   for ( var i = 0; i < Pairs.length; i++ ) {
      var KeyVal = Pairs[i].split('=');
      if ( ! KeyVal || KeyVal.length != 2 ) {continue;}
      var key = unescape( KeyVal[0] );
      var val = unescape( KeyVal[1] );
      val = val.replace(/\+/g, ' ');
      Params[key] = val;
   }
   return Params;
}

function tb_getPageSize(){
	var de = document.documentElement;
	var w = window.innerWidth || self.innerWidth || (de&&de.clientWidth) || document.body.clientWidth;
	var h = window.innerHeight || self.innerHeight || (de&&de.clientHeight) || document.body.clientHeight;
	arrayPageSize = [w,h];
	return arrayPageSize;
}

function tb_detectMacXFF() {
  var userAgent = navigator.userAgent.toLowerCase();
  if (userAgent.indexOf('mac') != -1 && userAgent.indexOf('firefox')!=-1) {
    return true;
  }
}

function tb_handleRelAttributes(domChunk) { // add rel attribute if they no exist in any of galleries separately
	var oGalleryWrappers = $("." + tb_galleryWrapperClass);	
	var galleryWrappersCounter = 0;
	
	for (gallery in oGalleryWrappers) {
		oGalleryWrappers[gallery].className = tb_galleryWrapperClass + galleryWrappersCounter; 
		
		var oGalleryItems = $("." + oGalleryWrappers[gallery].className + " " + domChunk);
		
		for (galleryItem in oGalleryItems) {
			if (oGalleryItems[galleryItem].rel == "") {
				oGalleryItems[galleryItem].rel = "gallery-" + oGalleryWrappers[gallery].className;
			} 
		}
		
		galleryWrappersCounter ++;
	}
}

function tb_handlePreviewImageLink(linkurl) {
	//	Handle links for image gallery element
	var myregexp = /tms=(\d{1,4})/;
	var match = myregexp.exec(linkurl);
	
	if (match != null) {
		linkurl = linkurl.substring(0, linkurl.lastIndexOf("=")) + "=" + tb_previewImageWidth;
	}	
	
	//	Handle links for image gallery in article
	var myregexp = /sp=(\d{1,4})/;
	var match = myregexp.exec(linkurl);
	
	if (match != null) {
		linkurl = linkurl.substring(0, linkurl.lastIndexOf("=")) + "=" + tb_previewImageWidth;
	}
	
	return linkurl;
}