var loadingImage = '/js/loading.gif';
var closeButton = '/js/close.gif';
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'){ hidepoxy(); }
}
function listenKey () {document.onkeypress = getKey; }
function showpoxy(objLink)
{
var objOverlay = document.getElementById('overlay');
var objpoxy = document.getElementById('poxy');
var objCaption = document.getElementById('poxyCaption');
var objImage = document.getElementById('poxyImage');
var objLoadingImage = document.getElementById('loadingImage');
var objpoxyDetails = document.getElementById('poxyDetails');
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 poxyTop = arrayPageScroll[1] + ((arrayPageSize[3] - 305 - imgPreload.height) / 2);
var poxyLeft = ((arrayPageSize[0] - 100 - imgPreload.width) / 2);
objpoxy.style.top = (poxyTop < 0) ? "10px" : poxyTop + "px";
objpoxy.style.left = (poxyLeft < 0) ? "0px" : poxyLeft + "px";
objpoxyDetails.style.width = imgPreload.width + 'px';
if(objLink.getAttribute('caption')){
objCaption.style.display = 'block';
objCaption.innerHTML = objLink.getAttribute('caption');

} 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";
}
objpoxy.style.display = 'block';
arrayPageSize = getPageSize();
objOverlay.style.height = (arrayPageSize[1] + 'px');
listenKey();
return false;
}
imgPreload.src = objLink.href;
}
function hidepoxy()
{
objOverlay = document.getElementById('overlay');
objpoxy = document.getElementById('poxy');
objOverlay.style.display = 'none';
objpoxy.style.display = 'none';
selects = document.getElementsByTagName("select");
for (i = 0; i != selects.length; i++) {
selects[i].style.visibility = "visible";
}
document.onkeypress = '';
}
function initpoxy()
{
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") == "poxy")){
anchor.onclick = function () {showpoxy(this); return false;}
}
}
var objBody = document.getElementsByTagName("body").item(0);
var objOverlay = document.createElement("div");
objOverlay.setAttribute('id','overlay');
objOverlay.onclick = function () {hidepoxy(); 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 () {hidepoxy(); return false;}
objOverlay.appendChild(objLoadingImageLink);
var objLoadingImage = document.createElement("img");
objLoadingImage.src = loadingImage;
objLoadingImage.setAttribute('id','loadingImage');
objLoadingImage.style.position = 'absolute';
objLoadingImage.style.zIndex = '150';
objLoadingImageLink.appendChild(objLoadingImage);
imgPreloader.onload=function(){};
return false;
}
imgPreloader.src = loadingImage;
var objpoxy = document.createElement("div");
objpoxy.setAttribute('id','poxy');
objpoxy.style.display = 'none';
objpoxy.style.position = 'absolute';
objpoxy.style.zIndex = '100';
objBody.insertBefore(objpoxy, objOverlay.nextSibling);
var objLink = document.createElement("a");
objLink.setAttribute('href','#');
objLink.setAttribute('caption','');
objLink.onclick = function () {hidepoxy(); return false;}
objpoxy.appendChild(objLink);
var objImage = document.createElement("img");
objImage.setAttribute('id','poxyImage');
//objImage.setAttribute('width','300');
//objImage.setAttribute('height','300');
objLink.appendChild(objImage);
var objpoxyDetails = document.createElement("div");
objpoxyDetails.setAttribute('id','poxyDetails');
objpoxy.appendChild(objpoxyDetails);
var objCaption = document.createElement("div");
objCaption.setAttribute('id','poxyCaption');
objCaption.style.display = 'none';
objCaption.setAttribute('width','300');
objpoxyDetails.appendChild(objCaption);
}
function addLoadEvent(func)
{
var oldonload = window.onload;
if (typeof window.onload != 'function'){
window.onload = func;
} else {
window.onload = function(){
oldonload();
func();
}
}
}
addLoadEvent(initpoxy);