//Lightbox v2.02
//by Lokesh Dhakar - http://www.huddletogether.com
//HR ver modified by Tihi Studio
var fileLoadingImage="images/loading.gif";		
var fileBottomNavCloseImage="images/closelabel.gif";
var resizeSpeed=8;
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','loading');
		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('loading');
		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('loading');
		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', "Slika " + eval(activeImage + 1) + " od " + 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);