// JavaScript Document
//	Lightbox v2.02 by Lokesh Dhakar - http://www.huddletogether.com
//	http://huddletogether.com/projects/lightbox2/
//	Licensed under the Creative Commons Attribution 2.5 License - http://creativecommons.org/licenses/by/2.5/
var resizeSpeed=7;
var borderSize=10;
var imageArray=new Array;
var activeImage;
if(resizeSpeed>10)
{
	resizeSpeed=10;
}
if(resizeSpeed<1)
{
	resizeSpeed=1;
}
resizeDuration=(11-resizeSpeed)*0.15;
Object.extend(
														Element,
														{
															getWidth:function(element)
																								{
																									element=$(element);	
																									return element.offsetWidth;
																								},
															setWidth:function(element,w)
																								{
																									element=$(element);
																									element.style.width=w+"px";
																								},
															setHeight:function(element,h)
																								{
																									element=$(element);
																									element.style.height=h+"px";
																								},
															setTop:function(element,t)
																								{
																									element=$(element);
																									element.style.top=t+"px";
																								},
															setSrc:function(element,src)
																								{
																									element=$(element);
																									element.src=src;
																								},
															setHref:function(element,href)
																								{
																									element=$(element);
																									element.href=href;
																								},
															setInnerHTML:function(element,content)
																								{
																									element=$(element);
																									element.innerHTML=content;
																								}
																}
);
Array.prototype.removeDuplicates=function(){for(i=1;i<this.length;i++){if(this[i][0]==this[i-1][0]){this.splice(i,1);}}}
Array.prototype.empty=function(){for(i=0;i<=this.length;i++){this.shift();}}
var Lightbox=Class.create();
Lightbox.prototype={initialize:function(){if(!document.getElementsByTagName){return;}
var anchors=document.getElementsByTagName('a');
for(var i=0;i<anchors.length;i++)
{
	var anchor=anchors[i];
	var relAttribute=String(anchor.getAttribute('rel'));
	if(anchor.getAttribute('href')&&(relAttribute.toLowerCase().match('lightbox')))
	{
		anchor.onclick=function(){myLightbox.start(this);return false;}
	}
}
var objBody=document.getElementsByTagName("body").item(0);
var objOverlay=document.createElement("div");
objOverlay.setAttribute('id','overlay');
objOverlay.style.display='none';
objOverlay.onclick=function(){myLightbox.end();return false;}
objBody.appendChild(objOverlay);
var objLightbox=document.createElement("div");
objLightbox.setAttribute('id','lightbox');
objLightbox.style.display='none';
objBody.appendChild(objLightbox);
var objOuterImageContainer=document.createElement("div");
objOuterImageContainer.setAttribute('id','outerImageContainer');
objLightbox.appendChild(objOuterImageContainer);
var objImageContainer=document.createElement("div");
objImageContainer.setAttribute('id','imageContainer');
objOuterImageContainer.appendChild(objImageContainer);
var objLightboxImage=document.createElement("img");
objLightboxImage.setAttribute('id','lightboxImage');
objImageContainer.appendChild(objLightboxImage);
var objHoverNav=document.createElement("div");
objHoverNav.setAttribute('id','hoverNav');
objImageContainer.appendChild(objHoverNav);
var objPrevLink=document.createElement("a");
objPrevLink.setAttribute('id','prevLink');
objPrevLink.setAttribute('href','#');
objHoverNav.appendChild(objPrevLink);
var objNextLink=document.createElement("a");
objNextLink.setAttribute('id','nextLink');
objNextLink.setAttribute('href','#');
objHoverNav.appendChild(objNextLink);
var objLoading=document.createElement("div");
objLoading.setAttribute('id','lightboxLoading');
objImageContainer.appendChild(objLoading);
var objLoadingLink=document.createElement("a");
objLoadingLink.setAttribute('id','loadingLink');
objLoadingLink.setAttribute('href','#');
objLoadingLink.onclick=function(){myLightbox.end();return false;}
objLoading.appendChild(objLoadingLink);
var objLoadingImage=document.createElement("img");
objLoadingImage.setAttribute('src',fileLoadingImage);
objLoadingLink.appendChild(objLoadingImage);
var objImageDataContainer=document.createElement("div");
objImageDataContainer.setAttribute('id','imageDataContainer');
objImageDataContainer.className='clearfix';
objLightbox.appendChild(objImageDataContainer);
var objImageData=document.createElement("div");
objImageData.setAttribute('id','imageData');
objImageDataContainer.appendChild(objImageData);
var objImageDetails=document.createElement("div");
objImageDetails.setAttribute('id','imageDetails');
objImageData.appendChild(objImageDetails);
var objCaption=document.createElement("span");
objCaption.setAttribute('id','caption');
objImageDetails.appendChild(objCaption);
var objNumberDisplay=document.createElement("span");
objNumberDisplay.setAttribute('id','numberDisplay');
objImageDetails.appendChild(objNumberDisplay);
var objBottomNav=document.createElement("div");
objBottomNav.setAttribute('id','bottomNav');
objImageData.appendChild(objBottomNav);
var objBottomNavCloseLink=document.createElement("a");
objBottomNavCloseLink.setAttribute('id','bottomNavClose');
objBottomNavCloseLink.setAttribute('href','#');
objBottomNavCloseLink.onclick=function(){myLightbox.end();return false;}
objBottomNav.appendChild(objBottomNavCloseLink);
var objBottomNavCloseImage=document.createElement("img");
objBottomNavCloseImage.setAttribute('src',fileBottomNavCloseImage);
objBottomNavCloseLink.appendChild(objBottomNavCloseImage);},start:function(imageLink){hideSelectBoxes();var arrayPageSize=getPageSize();Element.setHeight('overlay',arrayPageSize[1]);new Effect.Appear('overlay',{duration:0.2,from:0.0,to:0.8});imageArray=[];imageNum=0;if(!document.getElementsByTagName){return;}
var anchors=document.getElementsByTagName('a');if((imageLink.getAttribute('rel')=='lightbox')){imageArray.push(new Array(imageLink.getAttribute('href'),imageLink.getAttribute('title')));}else{for(var i=0;i<anchors.length;i++){var anchor=anchors[i];if(anchor.getAttribute('href')&&(anchor.getAttribute('rel')==imageLink.getAttribute('rel'))){imageArray.push(new Array(anchor.getAttribute('href'),anchor.getAttribute('title')));}}
imageArray.removeDuplicates();while(imageArray[imageNum][0]!=imageLink.getAttribute('href')){imageNum++;}}
var arrayPageSize=getPageSize();var arrayPageScroll=getPageScroll();var lightboxTop=arrayPageScroll[1]+(arrayPageSize[3]/15);Element.setTop('lightbox',lightboxTop);Element.show('lightbox');this.changeImage(imageNum);},changeImage:function(imageNum){activeImage=imageNum;Element.show('lightboxLoading');Element.hide('lightboxImage');Element.hide('hoverNav');Element.hide('prevLink');Element.hide('nextLink');Element.hide('imageDataContainer');Element.hide('numberDisplay');imgPreloader=new Image();imgPreloader.onload=function(){Element.setSrc('lightboxImage',imageArray[activeImage][0]);myLightbox.resizeImageContainer(imgPreloader.width,imgPreloader.height);}
imgPreloader.src=imageArray[activeImage][0];},resizeImageContainer:function(imgWidth,imgHeight){this.wCur=Element.getWidth('outerImageContainer');this.hCur=Element.getHeight('outerImageContainer');this.xScale=((imgWidth+(borderSize*2))/this.wCur)*100;this.yScale=((imgHeight+(borderSize*2))/this.hCur)*100;wDiff=(this.wCur-borderSize*2)-imgWidth;hDiff=(this.hCur-borderSize*2)-imgHeight;if(!(hDiff==0)){new Effect.Scale('outerImageContainer',this.yScale,{scaleX:false,duration:resizeDuration,queue:'front'});}
if(!(wDiff==0)){new Effect.Scale('outerImageContainer',this.xScale,{scaleY:false,delay:resizeDuration,duration:resizeDuration});}
if((hDiff==0)&&(wDiff==0)){if(navigator.appVersion.indexOf("MSIE")!=-1){pause(250);}else{pause(100);}}
Element.setHeight('prevLink',imgHeight);Element.setHeight('nextLink',imgHeight);Element.setWidth('imageDataContainer',imgWidth+(borderSize*2));this.showImage();},showImage:function(){Element.hide('lightboxLoading');new Effect.Appear('lightboxImage',{duration:0.5,queue:'end',afterFinish:function(){myLightbox.updateDetails();}});this.preloadNeighborImages();},updateDetails:function(){Element.show('caption');Element.setInnerHTML('caption',imageArray[activeImage][1]);if(imageArray.length>1){Element.show('numberDisplay');Element.setInnerHTML('numberDisplay',"Image "+eval(activeImage+1)+" of "+imageArray.length);}
new Effect.Parallel([new Effect.SlideDown('imageDataContainer',{sync:true,duration:resizeDuration+0.25,from:0.0,to:1.0}),new Effect.Appear('imageDataContainer',{sync:true,duration:1.0})],{duration:0.65,afterFinish:function(){myLightbox.updateNav();}});},updateNav:function(){Element.show('hoverNav');if(activeImage!=0){Element.show('prevLink');document.getElementById('prevLink').onclick=function(){myLightbox.changeImage(activeImage-1);return false;}}
if(activeImage!=(imageArray.length-1)){Element.show('nextLink');document.getElementById('nextLink').onclick=function(){myLightbox.changeImage(activeImage+1);return false;}}
this.enableKeyboardNav();},enableKeyboardNav:function(){document.onkeydown=this.keyboardAction;},disableKeyboardNav:function(){document.onkeydown='';},keyboardAction:function(e){if(e==null){keycode=event.keyCode;}else{keycode=e.which;}
key=String.fromCharCode(keycode).toLowerCase();if((key=='x')||(key=='o')||(key=='c')){myLightbox.end();}else if(key=='p'){if(activeImage!=0){myLightbox.disableKeyboardNav();myLightbox.changeImage(activeImage-1);}}else if(key=='n'){if(activeImage!=(imageArray.length-1)){myLightbox.disableKeyboardNav();myLightbox.changeImage(activeImage+1);}}},preloadNeighborImages:function(){if((imageArray.length-1)>activeImage){preloadNextImage=new Image();preloadNextImage.src=imageArray[activeImage+1][0];}
if(activeImage>0){preloadPrevImage=new Image();preloadPrevImage.src=imageArray[activeImage-1][0];}},end:function(){this.disableKeyboardNav();Element.hide('lightbox');new Effect.Fade('overlay',{duration:0.2});showSelectBoxes();}}
function getPageScroll(){var yScroll;if(self.pageYOffset){yScroll=self.pageYOffset;}else if(document.documentElement&&document.documentElement.scrollTop){yScroll=document.documentElement.scrollTop;}else if(document.body){yScroll=document.body.scrollTop;}
arrayPageScroll=new Array('',yScroll)
return arrayPageScroll;}
function getPageSize(){var xScroll,yScroll;if(window.innerHeight&&window.scrollMaxY){xScroll=document.body.scrollWidth;yScroll=window.innerHeight+window.scrollMaxY;}else if(document.body.scrollHeight>document.body.offsetHeight){xScroll=document.body.scrollWidth;yScroll=document.body.scrollHeight;}else{xScroll=document.body.offsetWidth;yScroll=document.body.offsetHeight;}
var windowWidth,windowHeight;if(self.innerHeight){windowWidth=self.innerWidth;windowHeight=self.innerHeight;}else if(document.documentElement&&document.documentElement.clientHeight){windowWidth=document.documentElement.clientWidth;windowHeight=document.documentElement.clientHeight;}else if(document.body){windowWidth=document.body.clientWidth;windowHeight=document.body.clientHeight;}
if(yScroll<windowHeight){pageHeight=windowHeight;}else{pageHeight=yScroll;}
if(xScroll<windowWidth){pageWidth=windowWidth;}else{pageWidth=xScroll;}
arrayPageSize=new Array(pageWidth,pageHeight,windowWidth,windowHeight)
return arrayPageSize;}
function getKey(e){if(e==null){keycode=event.keyCode;}else{keycode=e.which;}
key=String.fromCharCode(keycode).toLowerCase();if(key=='x'){}}
function listenKey(){document.onkeypress=getKey;}
function showSelectBoxes(){selects=document.getElementsByTagName("select");for(i=0;i!=selects.length;i++){selects[i].style.visibility="visible";}}
function hideSelectBoxes(){selects=document.getElementsByTagName("select");for(i=0;i!=selects.length;i++){selects[i].style.visibility="hidden";}}
function pause(numberMillis){var now=new Date();var exitTime=now.getTime()+numberMillis;while(true){now=new Date();if(now.getTime()>exitTime)
return;}}
function initLightbox(){myLightbox=new Lightbox();}
Event.observe(window,'load',initLightbox,false);