var Lightbox={init:function(A){this.options=Object.extend({resizeDuration:400,resizeTransition:Fx.Transitions.sineInOut,initialWidth:300,initialHeight:500,animateCaption:{In:true,Out:true},container:document.body,showControls:false,showNumbers:true,descriptions:false,opacity:0.8},A||{});this.anchors=[];$each(document.links,function(C){if(C.rel&&C.rel.test(/^lightbox/i)){C.onclick=this.click.pass(C,this);this.anchors.push(C)}},this);this.eventKeyDown=this.keyboardListener.bindAsEventListener(this);this.eventPosition=this.position.bind(this);this.overlay=new Element("div").setProperty("id","lbOverlay").injectInside(this.options.container);this.center=new Element("div").setProperty("id","lbCenter").setStyles({width:this.options.initialWidth+"px",height:this.options.initialHeight+"px",marginLeft:"-"+(this.options.initialWidth/2)+"px",display:"none"}).injectInside(this.options.container);this.image=new Element("div").setProperty("id","lbImage").injectInside(this.center);this.bottomContainer=new Element("div").setProperty("id","lbBottomContainer").setStyle("display","none").injectInside(this.options.container);this.bottom=new Element("div").setProperty("id","lbBottom").injectInside(this.bottomContainer);if(this.options.showControls){this.controlDiv=new Element("div").setProperty("id","lbControls").injectInside(this.bottom)}else{this.controlDiv=this.image}this.prevLink=new Element("a").setProperties({id:"lbPrevLink",href:"#"}).setStyle("display","none").injectInside(this.controlDiv);this.nextLink=this.prevLink.clone().setProperty("id","lbNextLink").injectInside(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:"#"}).injectInside(this.bottom);this.closeButton.onclick=this.overlay.onclick=this.close.bind(this);this.caption=new Element("div").setProperty("id","lbCaption").injectInside(this.bottom);if(this.options.descriptions!=false){this.options.descriptions=$$(this.options.descriptions);this.description=new Element("div").setProperty("id","lbDescription").injectInside(this.bottom)}if(this.options.showNumbers){this.number=new Element("div").setProperty("id","lbNumber").injectInside(this.bottom)}new Element("div").setStyle("clear","both").injectInside(this.bottom);var B=this.nextEffect.bind(this);this.fx={overlay:this.overlay.effect("opacity",{duration:500}).hide(),resize:this.center.effects({duration:this.options.resizeDuration,transition:this.options.resizeTransition,onComplete:B}),image:this.image.effect("opacity",{duration:500,onComplete:B}),bottom:this.bottom.effect("margin-top",{duration:200,onComplete:B})};this.preloadPrev=new Image();this.preloadNext=new Image()},click:function(D){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;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.fx.overlay.start(this.options.opacity);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);document[B]("keydown",this.eventKeyDown);this.step=0},keyboardListener:function(A){switch(A.keyCode){case 27:case 88:case 67:this.close();break;case 37:case 80:this.previous();break;case 39:case 78:this.next()}},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.effect("margin-top",{duration:200,onComplete:this.loadImage.bind(this)}).start(-this.bottom.offsetHeight)}else{this.bottomContainer.style.display=this.prevLink.style.display=this.nextLink.style.display="none";this.loadImage()}this.fx.image.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.setHTML(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").injectInside(this.description)}if(this.options.showNumbers){this.number.setHTML((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.fx.image.start(1);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=""}if(!this.options.showControls){this.prevLink.style.display=this.nextLink.style.display="none"}break;case 4:if(!this.options.showControls){this.prevLink.style.display=this.nextLink.style.display="none"}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=Class.empty;this.preload=null}for(var A in this.fx){this.fx[A].stop()}this.center.style.display=this.bottomContainer.style.display="none";this.fx.overlay.chain(this.setup.pass(false,this)).start(0);this.overlay.setStyles({height:this.window.height+"px",width:this.window.width+"px"});return false}};