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 pause(numberMillis) {
	var now = new Date();
	var exitTime = now.getTime() + numberMillis;
	while (true) {
		now = new Date();
		if (now.getTime() > exitTime)
			return;	}}
function getKey(e){
	if (e == null) {
		keycode = event.keyCode;	} else {
		keycode = e.which;	}
	key = String.fromCharCode(keycode).toLowerCase();
	
	if(key == 'x'){ hideLightbox(); }}
function listenKey () {	document.onkeypress = getKey; }
function showLightbox(objLink){
	var objOverlay = document.getElementById('overlay');
	var objLightbox = document.getElementById('lbox');
	var objCaption = document.getElementById('lboxCaption');
	var objImage = document.getElementById('lboxImage');
	var objLoadingImage = document.getElementById('');
	var objLightboxDetails = document.getElementById('lboxDetails');	
	var arrayPageSize = getPageSize();
	var arrayPageScroll = getPageScroll();
	if (objLoadingImage) {
		objLoadingImage.style.top = (arrayPageScroll[1] + ((arrayPageSize[3] - 35 - objLoadingImage.height) / 2) + 'px');
		objLoadingImage.style.left = (((arrayPageSize[0] - 20 - objLoadingImage.width) / 2) + 'px');
		objLoadingImage.style.display = 'block';	}
	objOverlay.style.height = (arrayPageSize[1] + 'px');
	objOverlay.style.display = 'block';
	imgPreload = new Image();
	imgPreload.onload=function(){
		objImage.src = objLink.href;
		var lboxTop = arrayPageScroll[1] + ((arrayPageSize[3] - 35 - imgPreload.height) / 2);
		var lboxLeft = ((arrayPageSize[0] - 20 - imgPreload.width) / 2);		
		objLightbox.style.top = (lboxTop < 0) ? "0px" : lboxTop + "px";
		objLightbox.style.left = (lboxLeft < 0) ? "0px" : lboxLeft + "px";
		objLightboxDetails.style.width = imgPreload.width + 'px';		
		if(objLink.getAttribute('title')){
			objCaption.style.display = 'block';
			objCaption.innerHTML = objLink.getAttribute('title');		} else {
			objCaption.style.display = 'none';		}
		if (navigator.appVersion.indexOf("MSIE")!=-1){
			pause(250);		} 
		if (objLoadingImage) {	objLoadingImage.style.display = 'none'; }
		selects = document.getElementsByTagName("select");
        for (i = 0; i != selects.length; i++) {
                selects[i].style.visibility = "hidden";      }	
		objLightbox.style.display = 'block';
		arrayPageSize = getPageSize();
		objOverlay.style.height = (arrayPageSize[1] + 'px');
		listenKey();
		return false;	}
	imgPreload.src = objLink.href;	}
function hideLightbox(){
	objOverlay = document.getElementById('overlay');
	objLightbox = document.getElementById('lbox');
	objOverlay.style.display = 'none';
	objLightbox.style.display = 'none';
	selects = document.getElementsByTagName("select");
    for (i = 0; i != selects.length; i++) {
		selects[i].style.visibility = "visible";	}
	document.onkeypress = '';}
function initLightbox(){	
	if (!document.getElementsByTagName){ return; }
	var anchors = document.getElementsByTagName("a");
	for (var i=0; i<anchors.length; i++){
		var anchor = anchors[i];
		if (anchor.getAttribute("href") && (anchor.getAttribute("rel") == "lbox")){
			anchor.onclick = function () {showLightbox(this); return false;}		}	}
	var objBody = document.getElementsByTagName("body").item(0);
	var objOverlay = document.createElement("div");
	objOverlay.setAttribute('id','overlay');
	objOverlay.onclick = function () {hideLightbox(); return false;}
	objOverlay.style.display = 'none';
	objOverlay.style.position = 'absolute';
	objOverlay.style.top = '0';
	objOverlay.style.left = '0';
	objOverlay.style.zIndex = '90';
 	objOverlay.style.width = '100%';
	objBody.insertBefore(objOverlay, objBody.firstChild);	
	var arrayPageSize = getPageSize();
	var arrayPageScroll = getPageScroll();
	var imgPreloader = new Image();
	imgPreloader.onload=function(){
		var objLoadingImageLink = document.createElement("a");
		objLoadingImageLink.setAttribute('href','#');
		objLoadingImageLink.onclick = function () {hideLightbox(); return false;}
		objOverlay.appendChild(objLoadingImageLink);		
		var objLoadingImage = document.createElement("img");
		objLoadingImage.setAttribute('id');
		objLoadingImage.style.position = 'absolute';
		objLoadingImage.style.zIndex = '150';
		objLoadingImageLink.appendChild(objLoadingImage);
		imgPreloader.onload=function(){};	
		return false;	}
	var objLightbox = document.createElement("div");
	objLightbox.setAttribute('id','lbox');
	objLightbox.style.display = 'none';
	objLightbox.style.position = 'absolute';
	objLightbox.style.zIndex = '100';	
	objBody.insertBefore(objLightbox, objOverlay.nextSibling);
	var objLink = document.createElement("a");
	objLink.setAttribute('href','#');
	objLink.onclick = function () {hideLightbox(); return false;}
	objLightbox.appendChild(objLink);
	var imgPreloadCloseButton = new Image();
	imgPreloadCloseButton.onload=function(){	}
	var objImage = document.createElement("img");
	objImage.setAttribute('id','lboxImage');
	objLink.appendChild(objImage);
	var objLightboxDetails = document.createElement("div");
	objLightboxDetails.setAttribute('id','lboxDetails');
	objLightbox.appendChild(objLightboxDetails);
	var objCaption = document.createElement("div");
	objCaption.setAttribute('id','lboxCaption');
	objCaption.style.display = 'none';
	objLightboxDetails.appendChild(objCaption);}
function addLoadEvent(func){	
	var oldonload = window.onload;
	if (typeof window.onload != 'function'){
    	window.onload = func;	} else {
		window.onload = function(){
		oldonload();
		func();		}	}}
//addLoadEvent(initLightbox);
jQuery(document).ready(function(){
	initLightbox()
});