// Lightbox 1.6, Extended version of Slimbox with some fixes for Mootools 1.2 by Aeron Glemann. Copyright (c) 2007 Samuel Birch <http://phatfusion.net>, MIT Style License.

var Lightbox=new Class(
{Implements:[Events,Options],
	options:{
				resizeDuration:400,
				resizeTransition:Fx.Transitions.Sine.easeInOut,
				initialWidth:250,
				initialHeight:250,
				animateCaption:{
					In:true,
					Out:true
					},
				showControls:false,
				showNumbers:true,
				descriptions:false,
				opacity:0.8,
				onClose:$empty,
				onOpen:$empty
			},
initialize:function(A){
	this.setOptions(A);
	this.options.container=document.body;
	this.anchors=[];
	$$("a[rel]").each(function(C){							   	
							   if(C.rel.test(/^lightbox/i)){C.onclick=this.click.pass(C,this);this.anchors.push(C)}},this);
	this.eventPosition=this.position.bind(this);
	this.overlay=new Element("div").set("id","lbOverlay").inject(this.options.container);
	this.center=new Element("div").set("id","lbCenter").setStyles(
			{
				width:this.options.initialWidth+"px",
				height:this.options.initialHeight+"px",
				marginLeft:"-"+(this.options.initialWidth/2)+"px",
				display:"none"
			}
		).inject(this.options.container);
	this.image=new Element("div").set("id","lbImage").inject(this.center);
	this.bottomContainer=new Element("div").set("id","lbBottomContainer").setStyle("display","none").inject(this.options.container);
	this.bottom=new Element("div").set("id","lbBottom").inject(this.bottomContainer);	
	if(this.options.showControls){
		this.controlDiv=new Element("div").set("id","lbControls").inject(this.bottom)
	}else{
		this.controlDiv=this.image
	}
	this.prevLink=new Element("a").setProperties({id:"lbPrevLink",href:"#"}).setStyle("display","none").inject(this.controlDiv);
	this.nextLink=this.prevLink.clone().set("id","lbNextLink").inject(this.controlDiv);
	this.prevLink.onclick=this.previous.bind(this);
	this.nextLink.onclick=this.next.bind(this);
	this.closeButton=new Element("a").setProperties({id:"lbCloseLink",href:"#"}).inject(this.bottom);
	this.closeButton.onclick=this.overlay.onclick=this.close.bind(this);
	this.caption=new Element("div").set("id","lbCaption").inject(this.bottom);
	if(this.options.descriptions!=false){
		this.options.descriptions=$$(this.options.descriptions);
		this.description=new Element("div").set("id","lbDescription").inject(this.bottom)
	}if(this.options.showNumbers){
		this.number=new Element("div").set("id","lbNumber").inject(this.bottom)
	}
	new Element("div").setStyle("clear","both").inject(this.bottom);
	var B=this.nextEffect.bind(this);
	this.fx={
		overlay:new Fx.Tween(
							 this.overlay,
							 "opacity",
							 {
								 duration:500
							}
							 ),
		resize:new Fx.Morph(
							this.center,
							{
								duration:this.options.resizeDuration,
								transition:this.options.resizeTransition,
								onComplete:B
							}
							),
		image:new Fx.Tween(
						   this.image,
						   "opacity",
						   {
							   duration:500,
							   onComplete:B
							}
							),
		bottom:new Fx.Tween(
							this.bottom,
							"margin-top",
							{
								duration:400,
								onComplete:B
							}
							)
	};

	this.overlay.fade("hide");
	this.preloadPrev=new Image();
	this.preloadNext=new Image();
	return this
	},
	
click:function(D){

	if(this.options.descriptions!=false){
		this.options.descriptions.each(function(F,E){
			
			if(F.hasClass(D.id)){
				this.linkLoc=E
				}
		 },this)
	}
	if(D.rel.length==8){		
		return this.show(D.href,D.title)}var C,B,A=[];
		this.anchors.each(
		  function(E){
			  if(E.rel==D.rel)
			  {
				  for(C=0;C<A.length;C++)
					  {					  
					  if(A[C][0]==E.href)					  
						 {
						 
						  break
						 }
					  }
					  if(C==A.length)
					  {
						  A.push([E.href,E.title]);
						  if(E.href==D.href){
							  B=C
							  }
					  }
				}
			},
			this);
			return this.open(A,B)
		},

show:function(A,B){
	return this.open([[A,B]],0)
},


open:function(A,B){
	this.images=A;
	//alert(typeof(A));
	for (var p in A){
	//	alert(p + "=" + A[p]);
	}
	this.position();
	this.setup(true);
	this.top=window.getScrollTop()+(window.getHeight()/15);
	this.window={};
	this.window.height=window.getScrollHeight();
	this.window.width=window.getScrollWidth();
	this.window.top=window.getScrollTop();
	this.window.left=window.getScrollLeft();
	this.center.setStyles({top:this.top+"px",display:""});
	this.overlay.fade(this.options.opacity);
	this.fireEvent("onOpen");
	return this.changeImage(B)
},

position:function(){if(this.options.container==document.body){var B=window.getScrollHeight()+"px";
var A=window.getScrollWidth()+"px";
this.overlay.setStyles({top:"0px",height:B,width:A})}else{var C=this.options.container.getCoordinates();
this.overlay.setStyles({top:C.top+"px",height:C.height+"px",left:C.left+"px",width:C.width+"px"})}},

setup:function(A){var C=$A(document.getElementsByTagName("object"));
if(window.ie){C.extend(document.getElementsByTagName("select"))}C.each(function(D){D.style.visibility=A?"hidden":""});
var B=A?"addEvent":"removeEvent";
window[B]("scroll",this.eventPosition)[B]("resize",this.eventPosition);
this.step=0},

previous:function(){this.linkLoc--;
return this.changeImage(this.activeImage-1)},

next:function(){this.linkLoc++;
return this.changeImage(this.activeImage+1)},

changeImage:function(A){if(this.step||(A<0)||(A>=this.images.length)){return false}this.step=1;
this.activeImage=A;
if(this.options.animateCaption.In&&this.bottom.offsetHeight){this.prevLink.style.display=this.nextLink.style.display="none";
this.bottom.set("tween",{duration:300,onComplete:this.loadImage.bind(this)}).tween("margin-top",-this.bottom.offsetHeight)}else{this.bottomContainer.style.display=this.prevLink.style.display=this.nextLink.style.display="none";
this.loadImage()}this.image.fade("hide");
this.center.className="lbLoading";
return false},

loadImage:function(){this.preload=new Image();
this.preload.onload=this.nextEffect.bind(this);
this.preload.src=this.images[this.activeImage][0]},

nextEffect:function(){switch(this.step++){case 1:this.center.className="";
this.image.style.backgroundImage="url("+this.images[this.activeImage][0]+")";
this.image.style.width=this.bottom.style.width=this.preload.width+"px";
if(this.options.showControls){this.image.style.height=this.preload.height+"px"}else{this.image.style.height=this.prevLink.style.height=this.nextLink.style.height=this.preload.height+"px"}this.caption.set("html",this.images[this.activeImage][1]||"");
if(this.options.descriptions!=false){if(this.description.getFirst()){this.description.getFirst().remove()}var B=this.options.descriptions[this.linkLoc].clone();
B.setStyle("display","block").inject(this.description)}if(this.options.showNumbers){this.number.set("html",(this.images.length==1)?"":"Image "+(this.activeImage+1)+" of "+this.images.length)}if(this.activeImage){this.preloadPrev.src=this.images[this.activeImage-1][0]}if(this.activeImage!=(this.images.length-1)){this.preloadNext.src=this.images[this.activeImage+1][0]}if(this.center.clientHeight!=this.image.offsetHeight){this.fx.resize.start({height:this.image.offsetHeight});
break}this.step++;
case 2:if(this.center.clientWidth!=this.image.offsetWidth){this.fx.resize.start({width:this.image.offsetWidth,marginLeft:-this.image.offsetWidth/2});
break}this.step++;
case 3:this.bottomContainer.setStyles({top:(this.top+this.center.clientHeight)+"px",height:"0px",marginLeft:this.center.style.marginLeft,display:""});
this.image.fade("in");
var A=this.caption.getStyle("height").toInt();
if(this.options.descriptions!=false){A+=this.description.getStyle("height").toInt()}if(this.options.showControls){A+=this.controlDiv.getStyle("height").toInt()}if(this.options.showNumbers){A+=this.number.getStyle("height").toInt()}var C=(A-(this.closeButton.getStyle("height").toInt()*2));
if(C<0){C=0}this.closeButton.setStyle("marginTop",C+"px");
if(this.activeImage!=0){this.prevLink.style.display=""}if(this.activeImage!=(this.images.length-1)){this.nextLink.style.display=""}break;
case 4:if(this.options.animateCaption.Out){this.fx.bottom.set(-this.bottom.offsetHeight);
this.bottomContainer.style.height="";
this.fx.bottom.start(0);
break}this.bottomContainer.style.height="";
case 5:this.step=0}},

close:function(){if(this.step<0){return }this.step=-1;
if(this.preload){this.preload.onload=$empty;
this.preload=null}for(var A in this.fx){this.fx[A].cancel()}this.center.style.display=this.bottomContainer.style.display="none";
this.overlay.fade("out");
this.setup.pass(false,this);
this.overlay.setStyles({height:this.window.height+"px",width:this.window.width+"px"});
this.fireEvent("onClose");
return false}});