/*	
Lightbox v2.02
by Lokesh Dhakar - http://www.huddletogether.com
3/31/06
For more information on this script, visit:
http://huddletogether.com/projects/lightbox2/
Licensed under the Creative Commons Attribution 2.5 License - http://creativecommons.org/licenses/by/2.5/
Credit also due to those who have helped, inspired, and made their code available to the public.
Including: Scott Upton(uptonic.com), Peter-Paul Koch(quirksmode.org), Thomas Fuchs(mir.aculo.us), and others.
Modified by Adam Shaw (Weebly Inc)
Modified by Admin (DA Mind Pte Ltd)
*/

function Left(str, n){
    if (n <= 0)
        return "";
    else if (n > String(str).length)
        return str;
    else
        return String(str).substring(0,n);
}

function Right(str, n){
    if (n <= 0)
       return "";
    else if (n > String(str).length)
       return str;
    else {
       var iLen = String(str).length;
       return String(str).substring(iLen, iLen - n);
    }
}

if (!window.STATIC_BASE) {
	STATIC_BASE = 'http://static-cdn.weebly.com/';
}

var fileLoadingImage = STATIC_BASE + "/images/loading.gif";
var fileBottomNavPrevImage = STATIC_BASE + "/images/miniprev.jpg";
var fileBottomNavNextImage = STATIC_BASE + "/images/mininext.jpg";
var fileBottomNavCloseImage = STATIC_BASE + "/images/closelabel.gif";
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','lightbox2-overlay');
		objOverlay.style.display = 'none';
		objOverlay.onclick = function() { myLightbox.end(); return false; }
		objBody.appendChild(objOverlay);

		var objLightbox = document.createElement("div");
		objLightbox.setAttribute('id','lightbox2');
		objLightbox.style.display = 'none';
		objLightbox.onclick = function() { myLightbox.end(); return false; }
		objBody.appendChild(objLightbox);

		var objOuterImageContainer = $(document.createElement("div"));
		objOuterImageContainer.setAttribute('id','outerImageContainer');
		objOuterImageContainer.observe('click', function(ev) { ev.stop() });
		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';
		objImageDataContainer.observe('click', function(ev) { ev.stop() /* prevent #lightbox click close */ });
		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);
		
		var objBottomNavNextLink = document.createElement("a");
		objBottomNavNextLink.setAttribute('id','bottomNavNext');
		objBottomNavNextLink.setAttribute('href','#');
		objBottomNavNextLink.onclick = function() {	myLightbox.changeImage(activeImage + 1); return false; }
		objBottomNav.appendChild(objBottomNavNextLink);
		
		var objBottomNavNextImage = document.createElement("img");
		objBottomNavNextImage.setAttribute('src', fileBottomNavNextImage);
		objBottomNavNextLink.appendChild(objBottomNavNextImage);
		
		var objBottomNavPrevLink = document.createElement("a");
		objBottomNavPrevLink.setAttribute('id','bottomNavPrev');
		objBottomNavPrevLink.setAttribute('href','#');
		objBottomNavPrevLink.onclick = function() {	myLightbox.changeImage(activeImage - 1); return false; }
		objBottomNav.appendChild(objBottomNavPrevLink);
		
		var objBottomNavPrevImage = document.createElement("img");
		objBottomNavPrevImage.setAttribute('src', fileBottomNavPrevImage);
		objBottomNavPrevLink.appendChild(objBottomNavPrevImage);

	},

	start: function(imageLink) {

		hideSelectBoxes();

		var arrayPageSize = getPageSize();
		Element.setHeight('lightbox2-overlay', arrayPageSize[1]);
		new Effect.Appear('lightbox2-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);
		this.lightboxTop = lightboxTop;

		Element.setTop('lightbox2', lightboxTop);
		Element.show('lightbox2');

		this.changeImage(imageNum);
	},

	changeImage: function(imageNum) {

		if (typeof activeImage != 'undefined') {
			var img = $('lightboxImage');
			img.removeAttribute('width');
			img.removeAttribute('height');
		}
		
		activeImage = imageNum;

		Element.show('loading');
		Element.hide('lightboxImage');
		Element.hide('hoverNav');
		Element.hide('prevLink');
		Element.hide('nextLink');
		Element.hide('bottomNavPrev');
		Element.hide('bottomNavNext');
		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) {
			var pageSize = getPageSize();
		var maxWidth = (pageSize[2] || 0) - 50;
		var maxHeight = (pageSize[3] || 0) - 115;
		if (maxWidth > 0 && maxHeight > 0) {
			var scale;
			if (imgHeight > imgWidth) {
				scale = maxWidth/imgWidth;
			}else{
				scale = Math.min(maxWidth/imgWidth, maxHeight/imgHeight);
			}
			if (scale < 1) {
				imgWidth = Math.round(imgWidth * scale);
				imgHeight = Math.round(imgHeight * scale);
				$('lightboxImage').width = imgWidth;
			}
		}

		this.wCur = Element.getWidth('outerImageContainer');
		this.hCur = Element.getHeight('outerImageContainer');

		Element.setWidth('outerImageContainer', imgWidth + borderSize * 2);
		Element.setHeight('outerImageContainer', imgHeight + borderSize * 2);

		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() {

		$('caption').update().show().appendChild(document.createTextNode(imageArray[activeImage][1]||''));

		if(imageArray.length > 1){
			Element.show('numberDisplay');
			Element.setInnerHTML( 'numberDisplay', "Image " + eval(activeImage + 1) + " of " + imageArray.length);
		}
		
		if(activeImage > 0){ 
		    Element.show('bottomNavPrev');
		}
		
		if(activeImage != (imageArray.length - 1)){ 
		    Element.show('bottomNavNext');
		}

		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;
			}
		}
		
		var arrayPageSize = getPageSize();
		Element.setHeight('lightbox2-overlay', Math.max(arrayPageSize[1], $('lightbox2').getHeight() + this.lightboxTop));

		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('lightbox2');
		new Effect.Fade('lightbox2-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;
	}
}

var lightboxLoaded = false;

function initLightbox() {
	myLightbox = new Lightbox();
	lightboxLoaded = true;
}


if (Prototype.Browser.IE) {
	Event.observe(window, 'load', initLightbox, false);
}else{
	document.observe('dom:loaded', initLightbox);
}