/*
* 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
* Modified by thoppe http://www.tomhoppe.com to allow for larger image handling, click navigation, and better ui.
*
* Modified by Grigore Enescu Madalin:
* Call like this: $thickbox.Init('a.thickbox, area.thickbox, input.thickbox','...');
*
*/
(function($) {
	
    var thickbox = {};

    // Add thickbox to the specified elements
    thickbox.Init = function (pSelector,pImgloader)
    {

        thickbox.imgLoader.src = pImgloader;
        $(pSelector).click(function(){
        var t = this.title || this.name || null;
        var a = this.href || this.alt;
        var g = this.rel || false;
        thickbox.Show(t,a,g);
        this.blur();
        return false;
        });
        
    }

    // Function called when the user clicks on a thickbox link
    thickbox.Show = function (caption, url, imageGroup) 
    {

	try {
				
		if(document.getElementById("TB_overlay") === null){
			$("body").append("<div id='TB_overlay'></div><div id='TB_window'></div>");
			$("#TB_overlay").click(thickbox.Remove);
		}
		
		if(thickbox.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='"+thickbox.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$/;
	   var urlType = baseURL.toLowerCase().match(urlString);

		if(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_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);
						if (!(TB_TempArray[TB_Counter].href == url)) {						
							if (TB_FoundURL) {
								TB_NextCaption = TB_TempArray[TB_Counter].title;
								TB_NextURL = TB_TempArray[TB_Counter].href;
								TB_NextHTML = "<span id='TB_next'>&nbsp;&nbsp;<a href='#'>Next &gt;</a></span>";
							} else {
								TB_PrevCaption = TB_TempArray[TB_Counter].title;
								TB_PrevURL = TB_TempArray[TB_Counter].href;
								TB_PrevHTML = "<span id='TB_prev'>&nbsp;&nbsp;<a href='#'>&lt; Prev</a></span>";
							}
						} else {
							TB_FoundURL = true;
							TB_imageCount = "&nbsp;&nbsp;Image " + (TB_Counter + 1) +" of "+ (TB_TempArray.length);											
						}
				}
			}

			imgPreloader = new Image();
			imgPreloader.onload = function(){		
			imgPreloader.onload = null;
			
			var imageWidth = imgPreloader.width;
			var imageHeight = imgPreloader.height;
			
			TB_WIDTH = imageWidth + 34;
			TB_HEIGHT = imageHeight + 60;
			
			captionInsert = "";
			
			if (caption) {captionInsert = "<div id='TB_caption'>" + caption + "</div>";}
			
			$("#TB_window").hide();

			$("#TB_window").append("<div id='TB_secondLine'>" + TB_PrevHTML + TB_imageCount + TB_NextHTML + "</div><div id='TB_closeWindow'></div><img class='TB_Image' id='TB_Image' src='"+url+"' width='"+imageWidth+"' height='"+imageHeight+"' alt='"+caption+"'/><div class='navText' id='closeText' style='left:"+(imageWidth-58)+"px'>Close</div><div class='navText' id='prevText'>Previous</div><div class='navText' id='nextText' style='left:"+(imageWidth-58)+"px'>Next</div>"+captionInsert); 
			
			$("#TB_window").fadeIn("fast");

			$("#TB_closeWindowButton").click(thickbox.Remove);
			
			function goNext(){
					$("#TB_window").remove();
					$("body").append("<div id='TB_window'></div>");
					thickbox.Show(TB_NextCaption, TB_NextURL, imageGroup);	
					return false;	
				}
				
			function goPrev(){
					if($(document).unbind("click",goPrev)){$(document).unbind("click",goPrev);}
					$("#TB_window").remove();
					$("body").append("<div id='TB_window'></div>");
					thickbox.Show(TB_PrevCaption, TB_PrevURL, imageGroup);
					return false;	
				}
				
			function goToImage(e,theObject){

				thickbox.hmousepos = e.pageX - theObject.parentNode.offsetLeft - 18;
			
				if (thickbox.hmousepos > (imageWidth/2)) {
					if (!(TB_NextHTML == "")) {		
						goNext();
					}
					else {
						thickbox.Remove();	
					}
				}
				else {
					if (!(TB_PrevHTML == "")) {		
						goPrev();
					}
					else {
						if (TB_NextHTML != "") {
							goNext();	
						}
						else {
							thickbox.Remove();	
						}
					}
				}
				
				
			}
			
			function showAction(e,theObject,fade) {
				if (e && theObject) {
					thickbox.hmousepos = e.pageX - theObject.parentNode.offsetLeft - 18;
				}
				if(imageGroup) {
					if(thickbox.hmousepos) {
						if (fade == 0) {
							if (thickbox.hmousepos > (imageWidth/2)) {
								if (!(TB_NextHTML == "")) {		
									$("#nextText").show();
								}
								else {
									$("#closeText").show();
								}
							}
							else {
								if (!(TB_PrevHTML == "")) {		
									$("#prevText").show();	
								}
								else {
									$("#nextText").show();
								}				
							}	
						}
						else {
							if (thickbox.hmousepos > (imageWidth/2)) {
								if (!(TB_NextHTML == "")) {		
									$("#nextText").fadeIn("fast");
									$("#prevText").fadeOut("fast");
									$("#closeText").fadeOut("fast");
								}
								else {
									$("#closeText").fadeIn("fast");
									$("#prevText").fadeOut("fast");	
								}
							}
							else {
								if (!(TB_PrevHTML == "")) {		
									$("#nextText").fadeOut("fast");
									$("#prevText").fadeIn("fast");	
									$("#closeText").fadeOut("fast");
								}
								else {
									$("#nextText").fadeIn("fast");
									$("#closeText").fadeOut("fast");
								}				
							}	
						}
					}
				}
				
			}
				
			if ((!(TB_PrevHTML == "")) && (imageGroup)) {
				$("#TB_prev").click(goPrev);
			}
			if ((!(TB_NextHTML == "")) && (imageGroup)) {		
				$("#TB_next").click(goNext);
			}

			document.onkeydown = function(e){ 	
				if (e == null) { // ie
					keycode = event.keyCode;
				} else { // mozilla
					keycode = e.which;
				}
				if(keycode == 27){ // close
					thickbox.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();
					}
				}	
			};
			
			thickbox.Position();
			
			$("#TB_load").remove();
			
			showAction();
			
			$("#TB_Image").click(function(e){goToImage(e,this);});	
			$("#TB_Image").mousemove(function(e){showAction(e,this);});
			
			$("#nextText").mousemove(function(e){showAction(e,this,0);});
			$("#nextText").click(function(e){goToImage(e,this);});
			
			$("#prevText").mousemove(function(e){showAction(e,this,0);});
			$("#prevText").click(function(e){goToImage(e,this);});
			
			$("#closeText").mousemove(function(e){showAction(e,this,0);});
			$("#closeText").click(function(e){goToImage(e,this);});	
			
			$("#TB_Image").mouseout(function(e){$("#nextText").css({display:"none"});$("#prevText").css({display:"none"});$("#closeText").css({display:"none"});});
			
			$("#TB_window").css({display:"block"}); //for safari using css instead of show
			};
			
			imgPreloader.src = url;
		}

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

    // helper functions below
    thickbox.Remove = function () 
    {
        $("#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 IE 6
        if (typeof document.body.style.maxHeight == "undefined") 
        {
            
            $("body","html").css({height: "auto", width: "auto"});
            $("html").css("overflow","");
        }
        document.onkeydown = "";
        document.onkeyup = "";
        return false;
    }

    thickbox.Position = function () 
    {
        
        var de = document.documentElement;
        if (de&&de.clientWidth < TB_WIDTH) 
        {
            $("#TB_window").css({left: '20px', width: TB_WIDTH + 'px', marginRight:'20px'});
        } else 
        {
            $("#TB_window").css({marginLeft: '-' + parseInt((TB_WIDTH / 2),10) + 'px', width: TB_WIDTH + 'px'});
        }

        if (de&&de.clientHeight < TB_HEIGHT) 
        {
            $("#TB_window").css({top: (document.documentElement.scrollTop + 20) + 'px'});
        } else 
        {
            $("#TB_window").css({top: parseInt(document.documentElement.scrollTop + ((de.clientHeight - TB_HEIGHT) / 2)) + 'px'});
        }
        
    }

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

    thickbox.hmousepos = 0;
    thickbox.imgLoader = new Image();
	$.extend({ thickbox: thickbox });
    
})(jQuery);