// -----------------------------------------------------------------------------------
//
//	Lightbox v2.03.3
//	by Lokesh Dhakar - http://www.huddletogether.com
//	5/21/06
//
//	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.com), Thomas Fuchs(mir.aculo.us), and others.
//
// -----------------------------------------------------------------------------------
var lboxLoadingImage = "engine/lightbox/loading.gif";
var lboxCloseImage = "engine/lightbox/close.gif";
var lboxPrevImage = "engine/lightbox/prev.gif";
var lboxNextImage = "engine/lightbox/next.gif";
var lboxOpacity = 0.8;
var lboxAnimate = true;
var lboxResizeSpeed = 5;
var lboxBorderSize = 10;
var lboxImageList = new Array;
var lboxActiveImage;
var lboxOverlayDuration;
var lboxResizeDuration;
if (lboxAnimate == true) {
	lboxOverlayDuration = 0.2;
	if (lboxResizeSpeed > 10) {
		lboxResizeSpeed = 10;
	}
	if (lboxResizeSpeed < 1) {
		lboxResizeSpeed = 1;
	}
	lboxResizeDuration = (11 - lboxResizeSpeed) * 0.15;
} else {
	lboxOverlayDuration = 0;
	lboxResizeDuration = 0;
}
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";
	},
	setLeft: function(element,l) {
		element = $(element);
		element.style.left = l +"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 = 0; i < this.length; i++){
		for(j = this.length-1; j>i; j--){
			if(this[i][0] == this[j][0]){
				this.splice(j,1);
			}
		}
	}
}
Array.prototype.empty = function () {
	for(i = 0; i <= this.length; i++){
		this.shift();
	}
}
var Lightbox = Class.create();
Lightbox.prototype = {
	initialize: function() {
		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();
		}
		objBody.appendChild(objOverlay);
		var objLightbox = document.createElement("div");
		objLightbox.setAttribute('id','lightbox');
		objLightbox.style.display = 'none';
		objLightbox.onclick = function(e) {
			if (!e) var e = window.event;
			var clickObj = Event.element(e).id;
			if ( clickObj == 'lightbox') {
				myLightbox.end();
			}
		};
		objBody.appendChild(objLightbox);
		var objOuterImageContainer = document.createElement("div");
		objOuterImageContainer.setAttribute('id','outerImageContainer');
		objLightbox.appendChild(objOuterImageContainer);
		if(lboxAnimate){
			Element.setWidth('outerImageContainer', 300);
			Element.setHeight('outerImageContainer', 300);
		} else {
			Element.setWidth('outerImageContainer', 1);
			Element.setHeight('outerImageContainer', 1);
		}
		var objImageContainer = document.createElement("div");
		objImageContainer.setAttribute('id','imageContainer');
		objOuterImageContainer.appendChild(objImageContainer);
		var objLightboxImage = document.createElement("img");
		objLightboxImage.setAttribute('id','lightboxImage');
		objLightboxImage.onclick = function() {
			myLightbox.end();
		}
		objImageContainer.appendChild(objLightboxImage);
		var objLoading = document.createElement("div");
		objLoading.setAttribute('id','loading');
		objImageContainer.appendChild(objLoading);
		var objLoadingImage = document.createElement("img");
		objLoadingImage.setAttribute('src', lboxLoadingImage);
		objLoading.appendChild(objLoadingImage);
		var objImageDataContainer = document.createElement("div");
		objImageDataContainer.setAttribute('id','imageDataContainer');
		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 objPrevLink = document.createElement("a");
		objPrevLink.setAttribute('id','prevLink');
		objPrevLink.setAttribute('href','#');
		objImageDetails.appendChild(objPrevLink);
		var objPrevImage = document.createElement("img");
		objPrevImage.setAttribute('src', lboxPrevImage);
		objPrevLink.appendChild(objPrevImage);
		var objNumberDisplay = document.createElement("div");
		objNumberDisplay.setAttribute('id','numberDisplay');
		objImageDetails.appendChild(objNumberDisplay);
		var objNextLink = document.createElement("a");
		objNextLink.setAttribute('id','nextLink');
		objNextLink.setAttribute('href','#');
		objImageDetails.appendChild(objNextLink);
		var objNextImage = document.createElement("img");
		objNextImage.setAttribute('src', lboxNextImage);
		objNextLink.appendChild(objNextImage);
		var objCloseLink = document.createElement("a");
		objCloseLink.setAttribute('id','closeLink');
		objCloseLink.setAttribute('href','#');
		objCloseLink.onclick = function() {
			myLightbox.end();
			return false;
		}
		objImageDetails.appendChild(objCloseLink);
		var objCloseImage = document.createElement("img");
		objCloseImage.setAttribute('src', lboxCloseImage);
		objCloseLink.appendChild(objCloseImage);
	},
	start: function(imageNumParam) {
		hideSelectBoxes();
		hideFlash();
		Element.hide('imageDataContainer');
		var arrayPageSize = getPageSize();
		Element.setWidth('overlay', arrayPageSize[0]);
		Element.setHeight('overlay', arrayPageSize[1]);
		new Effect.Appear('overlay', { duration: lboxOverlayDuration, from: 0.0, to: lboxOpacity });
		imageNum = imageNumParam;
		var arrayPageScroll = getPageScroll();
		var lightboxTop = arrayPageScroll[1] + 10;
		var lightboxLeft = arrayPageScroll[0];
		Element.setTop('lightbox', lightboxTop);
		Element.setLeft('lightbox', lightboxLeft);
		Element.show('lightbox');
		this.changeImage(imageNum);
	},
	changeImage: function(imageNum) {
		lboxActiveImage = imageNum;
		if(lboxAnimate){Element.show('loading');}
		Element.hide('lightboxImage');
		Element.setStyle('prevLink', {visibility: 'hidden'});
		Element.setStyle('nextLink', {visibility: 'hidden'});
		imgPreloader = new Image();
		imgPreloader.onload=function(){
			Element.setSrc('lightboxImage', lboxImageList[lboxActiveImage][0]);
			myLightbox.resizeImageContainer(imgPreloader.width, imgPreloader.height);
			imgPreloader.onload=function(){};
		}
		imgPreloader.src = lboxImageList[lboxActiveImage][0];
	},
	resizeImageContainer: function(imgWidth, imgHeight) {
		this.widthCurrent = Element.getWidth('outerImageContainer');
		this.heightCurrent = Element.getHeight('outerImageContainer');
		var widthNew = (imgWidth + (lboxBorderSize * 2));
		var heightNew = (imgHeight + (lboxBorderSize * 2));
		this.xScale = ( widthNew / this.widthCurrent) * 100;
		this.yScale = ( heightNew / this.heightCurrent) * 100;
		wDiff = this.widthCurrent - widthNew;
		hDiff = this.heightCurrent - heightNew;
		if(hDiff != 0)
		{
			new Effect.Scale(
				'outerImageContainer',
				this.yScale,
				{
					scaleX: false,
					duration: lboxResizeDuration,
					queue: 'front'
				}
			);
		}
		if(wDiff != 0)
		{
			new Effect.Scale(
				'outerImageContainer',
				this.xScale,
				{
					scaleY: false,
					delay: lboxResizeDuration,
					duration: lboxResizeDuration,
					beforeStart: function(){
						Element.hide('imageDataContainer');
					},
					afterFinish: function() {
						Element.setWidth('imageDataContainer', widthNew);
						Element.show('imageDataContainer');
					}
				}
			);
		}
		else
		{
			Element.hide('imageDataContainer');
			Element.setWidth('imageDataContainer', widthNew);
			Element.show('imageDataContainer');
		}
		if((hDiff == 0) && (wDiff == 0)){
			if (navigator.appVersion.indexOf("MSIE")!=-1){ pause(250); } else { pause(100); }
		}
		this.showImage();
	},
	showImage: function(){
		Element.hide('loading');
		new Effect.Appear(
			'lightboxImage',
			{
				duration: lboxResizeDuration,
				queue: 'end',
				afterFinish: function()
				{
					myLightbox.updateDetails();
				}
			}
		);
		this.preloadNeighborImages();
	},
	updateDetails: function() {
		if(lboxImageList.length > 1){
			Element.setInnerHTML('numberDisplay', "Image " + eval(lboxActiveImage + 1) + " of " + lboxImageList.length);
		}
		var arrayPageSize = getPageSize();
		Element.setHeight('overlay', arrayPageSize[1]);
		myLightbox.updateNav();
	},
	updateNav: function() {
		if(lboxActiveImage != 0){
			Element.setStyle('prevLink', {visibility: ''});
			document.getElementById('prevLink').onclick = function() {
				myLightbox.changeImage(lboxActiveImage - 1);
				return false;
			}
		}
		if(lboxActiveImage != (lboxImageList.length - 1)){
			Element.setStyle('nextLink', {visibility: ''});
			document.getElementById('nextLink').onclick = function() {
				myLightbox.changeImage(lboxActiveImage + 1);
				return false;
			}
		}
		this.enableKeyboardNav();
	},
	enableKeyboardNav: function() {
		document.onkeydown = this.keyboardAction;
	},
	disableKeyboardNav: function() {
		document.onkeydown = '';
	},
	keyboardAction: function(e) {
		if (e == null) {
			keycode = event.keyCode;
			escapeKey = 27;
		} else {
			keycode = e.keyCode;
			escapeKey = e.DOM_VK_ESCAPE;
		}
		key = String.fromCharCode(keycode).toLowerCase();
		if((key == 'x') || (key == 'o') || (key == 'c') || (keycode == escapeKey)){
			myLightbox.end();
		} else if((key == 'p') || (keycode == 37)){
			if(lboxActiveImage != 0){
				myLightbox.disableKeyboardNav();
				myLightbox.changeImage(lboxActiveImage - 1);
			}
		} else if((key == 'n') || (keycode == 39)){
			if(lboxActiveImage != (lboxImageList.length - 1)){
				myLightbox.disableKeyboardNav();
				myLightbox.changeImage(lboxActiveImage + 1);
			}
		}
	},
	preloadNeighborImages: function(){
		if((lboxImageList.length - 1) > lboxActiveImage){
			preloadNextImage = new Image();
			preloadNextImage.src = lboxImageList[lboxActiveImage + 1][0];
		}
		if(lboxActiveImage > 0){
			preloadPrevImage = new Image();
			preloadPrevImage.src = lboxImageList[lboxActiveImage - 1][0];
		}
	},
	end: function() {
		this.disableKeyboardNav();
		Element.hide('lightbox');
		new Effect.Fade('overlay', { duration: lboxOverlayDuration});
		showSelectBoxes();
		showFlash();
	}
}
function getPageScroll() {
	var xScroll, yScroll;
	if (self.pageYOffset) {
		yScroll = self.pageYOffset;
		xScroll = self.pageXOffset;
	} else if (document.documentElement && document.documentElement.scrollTop) {
		yScroll = document.documentElement.scrollTop;
		xScroll = document.documentElement.scrollLeft;
	} else if (document.body) {
		yScroll = document.body.scrollTop;
		xScroll = document.body.scrollLeft;
	}
	arrayPageScroll = new Array(xScroll, yScroll);
	return arrayPageScroll;
}
function getPageSize() {
	var xScroll, yScroll;
	if (window.innerHeight && window.scrollMaxY) {
		xScroll = window.innerWidth + window.scrollMaxX;
		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) {
		if (document.documentElement.clientWidth) {
			windowWidth = document.documentElement.clientWidth;
		} else {
			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 = xScroll;
	} else {
		pageWidth = windowWidth;
	}
	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() {
	var selects = document.getElementsByTagName("select");
	for (i = 0; i != selects.length; i++) {
		selects[i].style.visibility = "visible";
	}
}
function hideSelectBoxes() {
	var selects = document.getElementsByTagName("select");
	for (i = 0; i != selects.length; i++) {
		selects[i].style.visibility = "hidden";
	}
}
function showFlash() {
	var flashObjects = document.getElementsByTagName("object");
	for (i = 0; i < flashObjects.length; i++) {
		flashObjects[i].style.visibility = "visible";
	}
	var flashEmbeds = document.getElementsByTagName("embed");
	for (i = 0; i < flashEmbeds.length; i++) {
		flashEmbeds[i].style.visibility = "visible";
	}
}
function hideFlash() {
	var flashObjects = document.getElementsByTagName("object");
	for (i = 0; i < flashObjects.length; i++) {
		flashObjects[i].style.visibility = "hidden";
	}
	var flashEmbeds = document.getElementsByTagName("embed");
	for (i = 0; i < flashEmbeds.length; i++) {
		flashEmbeds[i].style.visibility = "hidden";
	}
}
function pause(ms) {
	var date = new Date;
	curDate = null;
	do {
		var curDate = new Date;
	} while (curDate - date < ms);
}
function initLightbox() {
	myLightbox = new Lightbox;
}
Event.observe(window, "load", initLightbox, false);