// -----------------------------------------------------------------------------------
//
//	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.
//
//
// -----------------------------------------------------------------------------------
/*

	Table of Contents
	-----------------
	Configuration
	Global Variables

	Extending Built-in Objects	
	- Object.extend(Element)
	- Array.prototype.removeDuplicates()
	- Array.prototype.empty()

	Lightbox Class Declaration
	- initialize()
	- updateImageList()
	- start()
	- changeImage()
	- resizeContainer()
	- showImage()
	- updateDetails()
	- updateNav()
	- enableKeyboardNav()
	- disableKeyboardNav()
	- keyboardAction()
	- preloadNeighborImages()
	- end()
	
	Miscellaneous Functions
	- getPageScroll()
	- getPageSize()
	- getKey()
	- listenKey()
	- showSelectBoxes()
	- hideSelectBoxes()
	- showFlash()
	- hideFlash()
	- pause()
	- initLightbox()
	
	Function Calls
	- addLoadEvent(initLightbox)
	
*/
// -----------------------------------------------------------------------------------

//
//	Configuration
//
var fileLoadingImage = "../images/lightbox/loading.gif";		
var fileBottomNavCloseImage = "../images/lightbox/close.gif";

var overlayOpacity = 0.8;	// controls transparency of shadow overlay

var animate = true;			// toggles resizing animations
var resizeSpeed = 10;		// controls the speed of the image resizing animations (1=slowest and 10=fastest)

var borderSize = 10;		//if you adjust the padding in the CSS, you will need to update this variable

// -----------------------------------------------------------------------------------

//
//	Global Variables
//
var imageArray = new Array;
var activeImage;

if(animate == true)
{
	overlayDuration = 0.2;	// shadow fade in/out duration
	if (resizeSpeed > 10)
	{
		resizeSpeed = 10;
	}
	if (resizeSpeed < 1)
	{
		resizeSpeed = 1;
	}
	resizeDuration = (11 - resizeSpeed) * 0.15;
}
else
{ 
	overlayDuration = 0;
	resizeDuration = 0;
}

if (parseInt(navigator.appVersion.charAt(0)) >= 4)
{
	var isNN = (navigator.appName == 'Netscape') ? 1 : 0;
	var isIE = (navigator.appName.indexOf('Microsoft') != -1) ? 1 : 0;
}


// -----------------------------------------------------------------------------------

//
//	Additional methods for Element added by SU, Couloir
//	- further additions by Lokesh Dhakar (huddletogether.com)
//
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;
	}
});

// -----------------------------------------------------------------------------------

//
//	Extending built-in Array object
//	- array.removeDuplicates()
//	- array.empty()
//
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();
	}
}

// -----------------------------------------------------------------------------------

//
//	Lightbox Class Declaration
//	- initialize()
//	- start()
//	- changeImage()
//	- resizeContainer()
//	- showImage()
//	- updateDetails()
//	- updateNav()
//	- enableKeyboardNav()
//	- disableKeyboardNav()
//	- keyboardNavAction()
//	- preloadNeighborImages()
//	- end()
//
//	Structuring of code inspired by Scott Upton (http://www.uptonic.com/)
//
var Lightbox = Class.create();

Lightbox.prototype = {
	
	// initialize()
	// Constructor runs on completion of the DOM loading. Calls updateImageList and then
	// the function inserts html at the bottom of the page which is used to display the shadow 
	// overlay and the image container.
	//
	initialize: function() {	
		
		this.updateImageList();

		// Code inserts html at the bottom of the page that looks similar to this:
		//
		//	<div id="overlay"></div>
		//	<div id="lightbox">
		//		<div id="outerContainer">
		//			<div id="imageContainer">
		//				<img id="lightboxImage">
		//				<div style="" id="hoverNav">
		//					<a href="#" id="prevLink"></a>
		//					<a href="#" id="nextLink"></a>
		//				</div>
		//				<div id="loading">
		//					<a href="#" id="loadingLink">
		//						<img src="images/loading.gif">
		//					</a>
		//				</div>
		//			</div>
		//			<div id="objectContainer">
		//				<object id="lightboxObject"></object>
		//			</div>
		//			<div id="iframeContainer">
		//				<iframe id="lightboxIframe"></iframe>
		//			</div>
		//		</div>
		//		<div id="imageDataContainer">
		//			<div id="imageData">
		//				<div id="imageDetails">
		//					<span id="caption"></span>
		//					<span id="numberDisplay"></span>
		//				</div>
		//				<div id="bottomNav">
		//					<a href="#" id="bottomNavClose">
		//						<img src="images/close.gif">
		//					</a>
		//				</div>
		//			</div>
		//		</div>
		//	</div>


		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) {	// close Lightbox is user clicks shadow overlay
			if (!e) var e = window.event;
			var clickObj = Event.element(e).id;
			if ( clickObj == 'lightbox') {
				myLightbox.end();
			}
		};
		objBody.appendChild(objLightbox);
			
		var objOuterContainer = document.createElement("div");
		objOuterContainer.setAttribute('id','outerContainer');
		objLightbox.appendChild(objOuterContainer);

		// When Lightbox starts it will resize itself from 250 by 250 to the current image dimension.
		// If animations are turned off, it will be hidden as to prevent a flicker of a
		// white 250 by 250 box.
		
		/*if (animate)
		{
			Element.setWidth('outerContainer', 250);
			Element.setHeight('outerContainer', 250);			
		} else {
			Element.setWidth('outerContainer', 1);
			Element.setHeight('outerContainer', 1);			
		}*/

		var objImageContainer = document.createElement("div");
		objImageContainer.setAttribute('id','imageContainer');
		objOuterContainer.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 objObjectContainer = document.createElement("div");
		objObjectContainer.setAttribute('id','objectContainer');
		objOuterContainer.appendChild(objObjectContainer);
		
		var objLightboxObject = document.createElement("object");
		objLightboxObject.setAttribute('id','lightboxObject');
		objObjectContainer.appendChild(objLightboxObject);
		
		var objIframeContainer = document.createElement("div");
		objIframeContainer.setAttribute('id','iframeContainer');
		objOuterContainer.appendChild(objIframeContainer);
		
		var objLightboxIframe = document.createElement("iframe");
		objLightboxIframe.setAttribute('id','lightboxIframe');
		objIframeContainer.appendChild(objLightboxIframe);
		
		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 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);
	},


	//
	// updateImageList()
	// Loops through anchor tags looking for 'lightbox' references and applies onclick
	// events to appropriate links. You can rerun after dynamically adding images w/ajax.
	//
	updateImageList: function() {	
		if (!document.getElementsByTagName){ return; }
		var anchors = document.getElementsByTagName('a');
		var areas = document.getElementsByTagName('area');

		// loop through all anchor tags
		for (var i=0; i<anchors.length; i++){
			var anchor = anchors[i];
			
			var relAttribute = String(anchor.getAttribute('rel'));
			
			// use the string.match() method to catch 'lightbox' references in the rel attribute
			if (anchor.getAttribute('href') && (relAttribute.toLowerCase().match('lightbox'))){
				anchor.onclick = function () {myLightbox.start(this); return false;}
			}
		}

		// loop through all area tags
		// todo: combine anchor & area tag loops
		for (var i=0; i< areas.length; i++){
			var area = areas[i];
			
			var relAttribute = String(area.getAttribute('rel'));
			
			// use the string.match() method to catch 'lightbox' references in the rel attribute
			if (area.getAttribute('href') && (relAttribute.toLowerCase().match('lightbox'))){
				area.onclick = function () {myLightbox.start(this); return false;}
			}
		}
	},
	
	
	//
	//	start()
	//	Display overlay and lightbox. If image is part of a set, add siblings to imageArray.
	//
	start: function(Link)
	{
		this.optimizeScreen(0);
		
		// detect which kind of source it is
		result = Link.href.match(/\?(\d)+x(\d)+/)
		if (!result)
		{
			result = Link.href.match(/&(\d)+x(\d)+/)
		}
		if (result)
		{
			var sizes = result[0].substr(1);
			sizes = sizes.split('x');
			sizes[0] *= 1;
			sizes[1] *= 1;
			// width= sizes[0] ; height= sizes[1]
			if (Link.href.match('.gif') || Link.href.match('.jpg') || Link.href.match('.png') || Link.href.match('.tif'))
			{
				var type = 'image';
			}
			else if (Link.href.match('.swf'))
			{
				var type = 'object';
			} else {
				var type = 'iframe';
			}
			var realLink = Link.href.substr(0, Link.href.length - result[0].length);
		} else {
			var type = 'image';
			var sizes = false;
		}
		
		hideSelectBoxes();
		hideFlash();

		// stretch overlay to fill page and fade in
		var arrayPageSize = getPageSize();
		Element.setWidth('overlay', arrayPageSize[0]);
		Element.setHeight('overlay', arrayPageSize[1]);

		new Effect.Appear('overlay', { duration: overlayDuration, from: 0.0, to: overlayOpacity });

		imageArray = [];
		imageNum = 0;		

		if (!document.getElementsByTagName){ return; }
		var anchors = document.getElementsByTagName(Link.tagName);
		
		if (type == 'image')
		{
			// if image is NOT part of a set..
			if((Link.getAttribute('rel') == 'lightbox')){
				// add single image to imageArray
				imageArray.push(new Array(Link.getAttribute('href'), Link.getAttribute('title')));			
			} else {
			// if image is part of a set..
	
				// loop through anchors, find other images in set, and add them to imageArray
				for (var i=0; i<anchors.length; i++){
					var anchor = anchors[i];
					if (anchor.getAttribute('href') && (anchor.getAttribute('rel') == Link.getAttribute('rel'))){
						imageArray.push(new Array(anchor.getAttribute('href'), anchor.getAttribute('title')));
					}
				}
				imageArray.removeDuplicates();
				while(imageArray[imageNum][0] != Link.getAttribute('href')) { imageNum++;}
			}
		}

		// calculate top and left offset for the lightbox 
		var arrayPageScroll = getPageScroll();
		if (typeof(lightboxtopalign) != 'undefined' && lightboxtopalign == true && type == 'iframe')
		{
			var lightboxTop = arrayPageScroll[1] + 10;
			borderSize = 0;
			document.getElementById('imageContainer').style.padding = '0px';
			document.getElementById('iframeContainer').style.padding = '0px';
			document.getElementById('objectContainer').style.padding = '0px';
		}
		else
		{
			var lightboxTop = arrayPageScroll[1] + (arrayPageSize[3] / 10);
			document.getElementById('imageContainer').style.padding = '10px';
			document.getElementById('iframeContainer').style.padding = '10px';
			document.getElementById('objectContainer').style.padding = '10px';
		}
		var lightboxLeft = arrayPageScroll[0];
		Element.setTop('lightbox', lightboxTop);
		Element.setLeft('lightbox', lightboxLeft);
		Element.show('lightbox');
		switch (type)
		{
			case 'image':
				this.changeImage(imageNum, sizes);
			break;
			case 'iframe':
				this.changeIframe(realLink, sizes);
			break;
			case 'object':
				this.changeObject(realLink, sizes);
			break;
		}
	},

	//
	//	changeImage()
	//	Hide most elements and preload image in preparation for resizing image container.
	//
	changeImage: function(imageNum, sizes) {	
		
		activeImage = imageNum;	// update global var

		// hide elements during transition
		if(animate){ Element.show('loading');}
		Element.hide('objectContainer');
		Element.hide('iframeContainer');
		Element.show('imageContainer');
		Element.hide('lightboxImage');
		Element.hide('hoverNav');
		Element.hide('prevLink');
		Element.hide('nextLink');
		Element.hide('imageDataContainer');
		Element.hide('numberDisplay');		
		
		imgPreloader = new Image();
		
		// once image is preloaded, resize image container
		imgPreloader.onload = function()
		{
			Element.setSrc('lightboxImage', imageArray[activeImage][0]);
			if (sizes != false && typeof(sizes) != 'undefined')
			{
				Element.setWidth('lightboxImage', sizes[0]);
				Element.setHeight('lightboxImage', sizes[1]);
				myLightbox.resizeContainer('image', sizes[0], sizes[1]);
			}
			else
			{
				myLightbox.resizeContainer('image', imgPreloader.width, imgPreloader.height);
			}
			imgPreloader.onload = function(){};	//	clear onLoad, IE behaves irratically with animated gifs otherwise 
		}
		imgPreloader.src = imageArray[activeImage][0];
	},
	
	//
	//	changeImage()
	//	Hide most elements and preload image in preparation for resizing image container.
	//
	changeIframe: function(Link, sizes)
	{	
		activeImage = 0;	// update global var
		Element.hide('objectContainer');
		Element.hide('imageContainer');
		Element.show('iframeContainer');
		Element.hide('lightboxImage');
		Element.hide('hoverNav');
		Element.hide('prevLink');
		Element.hide('nextLink');
		Element.hide('imageDataContainer');
		Element.hide('numberDisplay');
		document.getElementById('lightboxIframe').src = Link;
		document.getElementById('lightboxIframe').style.height = sizes[1]+'px';
		myLightbox.resizeContainer('iframe', sizes[0], sizes[1]);
	},
	
	//
	//	changeObject()
	//	Hide most elements and preload object in preparation for resizing image container.
	//
	changeObject: function(Link, sizes)
	{	
		activeImage = 0;	// update global var
		Element.hide('imageContainer');
		Element.hide('iframeContainer');
		Element.show('objectContainer');
		Element.hide('lightboxImage');
		Element.hide('hoverNav');
		Element.hide('prevLink');
		Element.hide('nextLink');
		Element.hide('imageDataContainer');
		Element.hide('numberDisplay');
		var fo = new SWFObject(Link, 'lightboxObject', sizes[0], sizes[1], "7", "#ffffff");
   		fo.write('objectContainer');
		myLightbox.resizeContainer('object', sizes[0], sizes[1]);
	},
	
	//
	//	resizeContainer()
	//
	resizeContainer: function(type, width, height)
	{
		var elementName = 'outerContainer';
		
		this.optimizeScreen(0);
			
		// get current width and height
		this.widthCurrent = Element.getWidth(elementName);
		this.heightCurrent = Element.getHeight(elementName);
		
		// get new width and height
		var widthNew = (width  + (borderSize * 2));
		var heightNew = (height  + (borderSize * 2));
		
		// stretch overlay to fill page and fade in
		var arrayPageSize = getPageSize();
		Element.setWidth('overlay', arrayPageSize[0]);
		Element.setHeight('overlay', arrayPageSize[1]);
		
		// calculate top and left offset for the lightbox 
		var arrayPageScroll = getPageScroll();
		if (typeof(lightboxtopalign) != 'undefined' && lightboxtopalign == true && type == 'iframe')
		{
			var lightboxTop = arrayPageScroll[1] + 10;
		}
		else
		{
			var lightboxTop = arrayPageScroll[1] + (arrayPageSize[3] / 10);
		}
		var lightboxLeft = arrayPageScroll[0];
		Element.setTop('lightbox', lightboxTop);
		Element.setLeft('lightbox', lightboxLeft);
			
		// if container too big, move
		if (heightNew > (arrayPageSize[3] - (borderSize * 2) - 40) && typeof(lightboxtopalign) == 'undefined' && type != 'iframe')
		{
			Element.setTop('lightbox', arrayPageScroll[1]);
		}
		else
		{
			if (typeof(lightboxtopalign) != 'undefined' && lightboxtopalign == true && type == 'iframe')
			{
				Element.setTop('lightbox', arrayPageScroll[1] + 10);
			}
			else
			{
				Element.setTop('lightbox', arrayPageScroll[1] + (arrayPageSize[3] - (borderSize * 2) - heightNew) / 2);
			}
		}
		
		// if size of image bigger that size of page » resize
		var arrayPageSize = getPageSize();
		if (widthNew > arrayPageSize[2] || heightNew > arrayPageSize[3])
		{
			this.optimizeScreen(1);
		}
		
		// scalars based on change from old to new
		this.xScale = ( widthNew / this.widthCurrent) * 100;
		this.yScale = ( heightNew / this.heightCurrent) * 100;

		// calculate size difference between new and old image, and resize if necessary
		wDiff = this.widthCurrent - widthNew;
		hDiff = this.heightCurrent - heightNew;
	
		if(!( hDiff == 0)){ new Effect.Scale(elementName, this.yScale, {scaleX: false, duration: resizeDuration, queue: 'front'}); }
		if(!( wDiff == 0)){ new Effect.Scale(elementName, this.xScale, {scaleY: false, delay: resizeDuration, duration: resizeDuration}); }

		// if new and old image are same size and no scaling transition is necessary, 
		// do a quick pause to prevent image flicker.
		if((hDiff == 0) && (wDiff == 0)){
			if (navigator.appVersion.indexOf("MSIE")!=-1){ pause(250); } else { pause(100);} 
		}

		switch (type)
		{
			case 'image':
				Element.setHeight('prevLink', height);
				Element.setHeight('nextLink', height);
				this.showImage();
			break;
			case 'object':
				this.showObject();
			break;
			case 'iframe':
				this.showIframe();
			break;
		}
		Element.setWidth('imageDataContainer', widthNew);
	},
	
	//
	//	showImage()
	//	Display image and begin preloading neighbors.
	//
	showImage: function(){
		Element.hide('loading');
		new Effect.Appear('lightboxImage', { duration: resizeDuration, queue: 'end', afterFinish: function(){	myLightbox.updateDetails('image'); } });
		this.preloadNeighborImages();
	},
	
	//
	//	showImage()
	//	Display image and begin preloading neighbors.
	//
	showIframe: function(){
		Element.hide('loading');
		new Effect.Appear('lightboxIframe', { duration: resizeDuration, queue: 'end', afterFinish: function(){	myLightbox.updateDetails('iframe'); } });
		this.preloadNeighborImages();
	},
	
	//
	//	showImage()
	//	Display image and begin preloading neighbors.
	//
	showObject: function(){
		Element.hide('loading');
		new Effect.Appear('lightboxObject', { duration: resizeDuration, queue: 'end', afterFinish: function(){	myLightbox.updateDetails('object'); } });
		this.preloadNeighborImages();
	},

	//
	//	updateDetails()
	//	Display caption, image number, and bottom nav.
	//
	updateDetails: function(type)
	{
		if (type == 'image')
		{
			// if caption is not null
			if(imageArray[activeImage][1]){
				Element.show('caption');
				Element.setInnerHTML( 'caption', imageArray[activeImage][1]);
			}
			else
			{
				Element.setInnerHTML( 'caption', '');
			}
		
			// if image is part of set display 'Image x of x' 
			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, from: 0.0, to: 1.0 }), 
			  new Effect.Appear('imageDataContainer', { sync: true, duration: resizeDuration }) ], 
		{ duration: resizeDuration, afterFinish: function()
			{
				// update overlay size and update nav
				var arrayPageSize = getPageSize();
				Element.setHeight('overlay', arrayPageSize[1]);
				if (type == 'image')
				{
					myLightbox.updateNav();
				}
				else
				{
					myLightbox.enableKeyboardNavLight();
					if (typeof(lightboxtopalign) != 'undefined' && lightboxtopalign == true && type == 'iframe')
					{
						Element.hide('imageDataContainer');
					}
				}
				}
			} 
		);
	},

	//
	//	updateNav()
	//	Display appropriate previous and next hover navigation.
	//
	updateNav: function() {

		Element.show('hoverNav');				

		// if not first image in set, display prev image button
		if(activeImage != 0){
			Element.show('prevLink');
			document.getElementById('prevLink').onclick = function() {
				myLightbox.changeImage(activeImage - 1); return false;
			}
		}

		// if not last image in set, display next image button
		if(activeImage != (imageArray.length - 1)){
			Element.show('nextLink');
			document.getElementById('nextLink').onclick = function() {
				myLightbox.changeImage(activeImage + 1); return false;
			}
		}
		
		this.enableKeyboardNav();
	},

	//
	//	enableKeyboardNav()
	//
	enableKeyboardNav: function() {
		document.onkeydown = this.keyboardAction; 
	},
	
	enableKeyboardNavLight: function() {
		document.onkeydown = this.keyboardActionLight; 
	},

	//
	//	disableKeyboardNav()
	//
	disableKeyboardNav: function() {
		document.onkeydown = '';
	},

	//
	//	keyboardAction()
	//
	keyboardAction: function(e) {
		if (e == null) { // ie
			keycode = event.keyCode;
			escapeKey = 27;
		} else { // mozilla
			keycode = e.keyCode;
			escapeKey = e.DOM_VK_ESCAPE;
		}

		key = String.fromCharCode(keycode).toLowerCase();
		
		if((key == 'x') || (key == 'o') || (key == 'c') || (keycode == escapeKey)){	// close lightbox
			myLightbox.end();
		} else if((key == 'p') || (keycode == 37)){	// display previous image
			if(activeImage != 0){
				myLightbox.disableKeyboardNav();
				myLightbox.changeImage(activeImage - 1);
			}
		} else if((key == 'n') || (keycode == 39)){	// display next image
			if(activeImage != (imageArray.length - 1)){
				myLightbox.disableKeyboardNav();
				myLightbox.changeImage(activeImage + 1);
			}
		}

	},
	
	keyboardActionLight: function(e) {
		if (e == null) { // ie
			keycode = event.keyCode;
			escapeKey = 27;
		} else { // mozilla
			keycode = e.keyCode;
			escapeKey = e.DOM_VK_ESCAPE;
		}

		key = String.fromCharCode(keycode).toLowerCase();
		
		if((key == 'x') || (key == 'o') || (key == 'c') || (keycode == escapeKey)){	// close lightbox
			myLightbox.end();
		}
	},

	//
	//	preloadNeighborImages()
	//	Preload previous and next images.
	//
	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()
	//
	end: function() {
		var xw = screen.width;
		this.optimizeScreen(2);
		this.disableKeyboardNav();
		Element.hide('lightbox');
		new Effect.Fade('overlay', { duration: overlayDuration});
		showSelectBoxes();
		showFlash();
		if (document.getElementById('objectContainer'))
		{
			document.getElementById('objectContainer').innerHTML = '';
		}
		if (document.getElementById('lightboxIframe'))
		{
			document.getElementById('lightboxIframe').src = 'about:blank';
		}
	},
	
	optimizeScreen: function(status)
	{
		var scrollpos_before = getPageScroll();
		var arrayPageSize = getPageSize();
		
		if (status == 0)
		{
			if (arrayPageSize[0] > 1000 && arrayPageSize[1] > 660)
			{
				document.getElementsByTagName('body')[0].style.width = '100%';
				document.getElementsByTagName('body')[0].style.height = '100%';
				document.getElementsByTagName('html')[0].style.width = '100%';
				document.getElementsByTagName('html')[0].style.height = '100%';
				document.getElementsByTagName('html')[0].style.overflow = 'hidden';
				document.getElementsByTagName('html')[0].style.paddingRight = '18px';
				if (isIE)
				{
					document.getElementsByTagName('html')[0].style.marginLeft = '-8px';
				}
				else if (isNN)
				{
					document.getElementsByTagName('html')[0].style.marginLeft = '0px';
					document.getElementsByTagName('body')[0].style.marginLeft = '-8px';
				}
	
			}
			var scrollpos_after = getPageScroll();
			if (scrollpos_before[0] != scrollpos_after[0] || scrollpos_before[1] != scrollpos_after[1])
			{
				window.scrollTo(scrollpos_before[0], scrollpos_before[1]);
			}
		}
		else if (status == 1)
		{
			document.getElementsByTagName('body')[0].style.width = 'auto';
			document.getElementsByTagName('body')[0].style.height = 'auto';
			document.getElementsByTagName('html')[0].style.width = 'auto';
			document.getElementsByTagName('html')[0].style.height = 'auto';
			document.getElementsByTagName('html')[0].style.overflow = 'scroll';
			document.getElementsByTagName('html')[0].style.paddingRight = '0px';
			if (isIE)
			{
				document.getElementsByTagName('html')[0].style.marginLeft = '0px';
			}
			else if (isNN)
			{
				document.getElementsByTagName('html')[0].style.marginLeft = 'auto';
			}
		}
		else if (status == 2)
		{
			if (arrayPageSize[0] > 1000 && arrayPageSize[1] > 660)
			{
				document.getElementsByTagName('body')[0].style.width = 'auto';
				document.getElementsByTagName('body')[0].style.height = 'auto';
				document.getElementsByTagName('html')[0].style.width = 'auto';
				document.getElementsByTagName('html')[0].style.height = 'auto';
				document.getElementsByTagName('html')[0].style.overflow = 'scroll';
				document.getElementsByTagName('html')[0].style.overflowX = 'hidden';
				document.getElementsByTagName('html')[0].style.paddingRight = '0px';
				if (isIE)
				{
					document.getElementsByTagName('html')[0].style.marginLeft = '0px';
				}
				else if (isNN)
				{
					document.getElementsByTagName('html')[0].style.marginLeft = 'auto';
					document.getElementsByTagName('body')[0].style.marginLeft = 'auto';
				}
			}
		}
	}
}

// -----------------------------------------------------------------------------------

//
// getPageScroll()
// Returns array with x,y page scroll values.
// Core code from - quirksmode.com
//
function getPageScroll()
{
	var xScroll, yScroll;

	if (self.pageYOffset)
	{
		yScroll = self.pageYOffset;
		xScroll = self.pageXOffset;
	}
	else if (document.documentElement && document.documentElement.scrollTop)
	{	 // Explorer 6 Strict
		yScroll = document.documentElement.scrollTop;
		xScroll = document.documentElement.scrollLeft;
	}
	else if (document.body)
	{// all other Explorers
		yScroll = document.body.scrollTop;
		xScroll = document.body.scrollLeft;	
	}

	arrayPageScroll = new Array(xScroll,yScroll) 
	return arrayPageScroll;
}

// -----------------------------------------------------------------------------------

//
// getPageSize()
// Returns array with page width, height and window width, height
// Core code from - quirksmode.com
// Edit for Firefox by pHaez
//
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)
	{ // all but Explorer Mac
		xScroll = document.body.scrollWidth;
		yScroll = document.body.scrollHeight;
	}
	else
	{ // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
		xScroll = document.body.offsetWidth + 20;
		yScroll = document.body.offsetHeight + 30;
	}
	
	var windowWidth, windowHeight;
	
	if (self.innerHeight)
	{	// all except Explorer
		if (document.documentElement.clientWidth)
		{
			windowWidth = document.documentElement.clientWidth; 
		}
		else
		{
			windowWidth = self.innerWidth;
		}
		windowHeight = self.innerHeight;
	}
	else if (document.documentElement && document.documentElement.clientHeight)
	{ // Explorer 6 Strict Mode
		windowWidth = document.documentElement.clientWidth;
		windowHeight = document.documentElement.clientHeight;
	}
	else if (document.body)
	{ // other Explorers
		windowWidth = document.body.clientWidth;
		windowHeight = document.body.clientHeight;
	}	
	
	// for small pages with total height less then height of the viewport
	if (yScroll < windowHeight)
	{
		pageHeight = windowHeight;
	}
	else
	{ 
		pageHeight = yScroll;
	}

	// for small pages with total width less then width of the viewport
	if (xScroll < windowWidth)
	{	
		pageWidth = xScroll;		
	}
	else
	{
		pageWidth = windowWidth;
	}
	// wurde hinzugefügt, da die obere Abfrage nicht korrekt funktioniert!
	pageWidth = windowWidth;

	var arrayPageSize = new Array(pageWidth,pageHeight,windowWidth,windowHeight); 
	return arrayPageSize;
}

// -----------------------------------------------------------------------------------

//
// getKey(key)
// Gets keycode. If 'x' is pressed then it hides the lightbox.
//
function getKey(e){
	if (e == null) { // ie
		keycode = event.keyCode;
	} else { // mozilla
		keycode = e.which;
	}
	key = String.fromCharCode(keycode).toLowerCase();
	
	if(key == 'x'){
	}
}

// -----------------------------------------------------------------------------------

//
// listenKey()
//
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";
	}

}


// ---------------------------------------------------

//
// pause(numberMillis)
// Pauses code execution for specified time. Uses busy code, not good.
// Help from Ran Bar-On [ran2103@gmail.com]
//

function pause(ms){
	var date = new Date();
	curDate = null;
	do{var curDate = new Date();}
	while( curDate - date < ms);
}
/*
function pause(numberMillis) {
	var curently = new Date().getTime() + sender;
	while (new Date().getTime();	
}
*/
// ---------------------------------------------------



function initLightbox() { myLightbox = new Lightbox(); }
Event.observe(window, 'load', initLightbox, false);