var fileLoadingImage = "/resources/org.wicketstuff.lightbox.LightboxBehavior/resources/images/loading.gif";
var fileBottomNavCloseImage = "/resources/org.wicketstuff.lightbox.LightboxBehavior/resources/images/closelabel.gif";

var overlayOpacity = 0.8;	
var animate = true;
var resizeSpeed = 7;

var borderSize = 10;


var imageArray = new Array;
var activeImage;
if(animate == true){
overlayDuration = 0.2;		if(resizeSpeed > 10){ resizeSpeed = 10;}
if(resizeSpeed < 1){ resizeSpeed = 1;}
resizeDuration = (11 - resizeSpeed) * 0.15;
} else {
overlayDuration = 0;
resizeDuration = 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() {
this.updateImageList();
































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(animate){
Element.setWidth('outerImageContainer', 250);
Element.setHeight('outerImageContainer', 250);
} 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');
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');
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: function() {
if (!document.getElementsByTagName){ return; }
var anchors = document.getElementsByTagName('a');
var areas = document.getElementsByTagName('area');

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;}
}
}


for (var i=0; i< areas.length; i++){
var area = areas[i];
var relAttribute = String(area.getAttribute('rel'));

if (area.getAttribute('href') && (relAttribute.toLowerCase().match('lightbox'))){
area.onclick = function () {myLightbox.start(this); return false;}
}
}
},
				start: function(imageLink) {
hideSelectBoxes();
hideFlash();

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( imageLink.tagName);

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 arrayPageScroll = getPageScroll();
var lightboxTop = arrayPageScroll[1] + (arrayPageSize[3] / 10);
var lightboxLeft = arrayPageScroll[0];
Element.setTop('lightbox', lightboxTop);
Element.setLeft('lightbox', lightboxLeft);
Element.show('lightbox');
this.changeImage(imageNum);
},
				changeImage: function(imageNum) {
activeImage = imageNum;	

if(animate){ 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.onload=function(){};	
}
imgPreloader.src = imageArray[activeImage][0];
},
			resizeImageContainer: function( imgWidth, imgHeight) {

this.widthCurrent = Element.getWidth('outerImageContainer');
this.heightCurrent = Element.getHeight('outerImageContainer');

var widthNew = (imgWidth
+ (borderSize * 2));
var heightNew = (imgHeight
+ (borderSize * 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: 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', widthNew);
this.showImage();
},
				showImage: function(){
Element.hide('loading');
new Effect.Appear('lightboxImage', { duration: resizeDuration, queue: 'end', afterFinish: function(){	myLightbox.updateDetails(); } });
this.preloadNeighborImages();
},
				updateDetails: function() {

if(imageArray[activeImage][1]){
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, from: 0.0, to: 1.0 }),
new Effect.Appear('imageDataContainer', { sync: true, duration: resizeDuration }) ],
{ duration: resizeDuration, afterFinish: function() {

var arrayPageSize = getPageSize();
Element.setHeight('overlay', arrayPageSize[1]);
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;
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(activeImage != 0){
myLightbox.disableKeyboardNav();
myLightbox.changeImage(activeImage - 1);
}
} else if((key == 'n') || (keycode == 39)){	
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: overlayDuration});
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);