



// Configuration
// If you would like to use a custom loading image or close button reference them in the next two lines.
var loadingImage = '/images/lightbox/loading.gif';
var closeButtonImage = '/images/lightbox/close.gif';
var overlayImage = '/images/lightbox/overlay.png'
function getRequest(u) {
var request;
var results = "";
var DoCommit = "Yes";
var method = "GET";
var params = null;
if (arguments.length >= 2 && arguments[1].toString().toLowerCase() == "post") {
method = "POST";
if (arguments.length >= 3) {
params = arguments[2];
}
}
if (window.XMLHttpRequest) { 
request = new XMLHttpRequest();
if (request.overrideMimeType) {
request.overrideMimeType("text/xml");
}
} else if (window.ActiveXObject) { 
try {
request = new ActiveXObject("Msxml2.XMLHTTP");
} catch (e) {
try {
request = new ActiveXObject("Microsoft.XMLHTTP");
} catch (e) {
DoCommit = "No";
}
}
}
if(DoCommit != "No") {
request.open(method, u, false);
if (method == "POST") {
request.setRequestHeader("Content-Type", "application/x-www-form-urlencoded; charset=UTF-8");
}
request.send(params);
if (request.readyState == 4) {
results = request.responseText;
return results;
} else {
request.onreadystatechange = function() {
if (request.readyState == 4) {
if(request.status == 200) {
results = request.responseText;
return results;
} else {
return results;
}
}
}
}
} else {
return results;
}
}
// getPageScroll()
// Returns array with x,y page scroll values.
// Core code from - quirksmode.org
function getPageScroll() {
var yScroll;
if(self.pageYOffset) {
yScroll = self.pageYOffset;
} else if (document.documentElement && document.documentElement.scrollTop) { // Explorer 6 Strict
yScroll = document.documentElement.scrollTop;
} else if (document.body) { // all other Explorers
yScroll = document.body.scrollTop;
}
arrayPageScroll = new Array(); 
arrayPageScroll[0] = "";
arrayPageScroll[1] = yScroll;
return arrayPageScroll;
}
// getPageSize()
// Returns array with page width, height and window width, height
// Core code from - quirksmode.org
// Edit for Firefox by pHaez
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) { // 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;
yScroll = document.body.offsetHeight;
}
var windowWidth, windowHeight;
if (self.innerHeight) {// all except Explorer
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 = windowWidth;
} else {
pageWidth = xScroll;
}
arrayPageSize = new Array();
arrayPageSize[0] = pageWidth;
arrayPageSize[1] = pageHeight;
arrayPageSize[2] = windowWidth;
arrayPageSize[3] = 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'){ hideLightBox(); }
}
// hideFlash()
// Hides all Flash on a page.
function hideFlash(){
var flashObjects = document.getElementsByTagName("object");
for(i = 0; i != flashObjects.length; i++) {
flashObjects[i].style.visibility = "hidden";
}
var flashEmbeds = document.getElementsByTagName("embeds");
for(i = 0; i != flashEmbeds.length; i++) {
flashEmbeds[i].style.visibility = "hidden";
}
}
// showFlash()
// Shows all Flash on a page.
function showFlash() {
var flashObjects = document.getElementsByTagName("object");
for(i = 0; i != flashObjects.length; i++) {
flashObjects[i].style.visibility = "visible";
}
var flashEmbeds = document.getElementsByTagName("embeds");
for(i = 0; i != flashEmbeds.length; i++) {
flashEmbeds[i].style.visibility = "visible";
}
}
// hideSelects()
// Hides all Selects on a page.
function hideSelects(){
// Hide select boxes as they will 'peek' through the image in IE
var selects = document.getElementsByTagName("select");
for(i = 0; i != selects.length; i++) {
selects[i].style.visibility = "hidden";
}
jQuery("#lightBoxHTMLSection select").css("visibility","visible");
}
// showSelects()
// Shows all Selects on a page.
function showSelects() {
// Hide select boxes as they will 'peek' through the image in IE
var selects = document.getElementsByTagName("select");
for(i = 0; i != selects.length; i++) {
selects[i].style.visibility = "visible";
}
}
// addLoadEvent()
// Adds event to window.onload without overwriting currently assigned onload functions.
// Function found at Simon Willison's weblog - http://simon.incutio.com/
function addLoadEvent(func) {
var oldonload = window.onload;
if (typeof window.onload != 'function') {
window.onload = func;
} else {
window.onload = function() {
oldonload();
func();
}
}
}
// initLightBox()
// Function runs on window load, going through link tags looking for rel="lightbox".
// These links receive onclick events that enable the lightbox display for their targets.
// The function also inserts html markup at the top of the page which will be used as a
// container for the overlay pattern and the inline image.
function initLightBox() {
if (!document.getElementsByTagName) { return; }
// the rest of this code inserts html at the top of the page that looks like this:
//
// <div id="overlay">
//<a href="#" onclick="hideLightBox(); return false;"><img id="loadingImage" /></a>
//</div>
// <div id="lightbox">
//<div id="lightBoxImageSection" style="display:;">
//<a href="#" onclick="hideLightBox(); return false;" title="Click anywhere to close image">
//<img id="closeButton" />
//<img id="lightboxImage" />
//</a>
// </div>
// <div id="lightBoxHTMLSection" style="display:;overflow:auto;">
// </div>
//<div id="lightboxDetails">
//<div id="lightboxCaption"></div>
//</div>
// </div>
var objBody = document.getElementsByTagName("body").item(0);
// create overlay div and hardcode some functional styles (aesthetic styles are in CSS file)
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%';
objOverlay.style.border = 'none';
objOverlay.style.background = 'url(' + overlayImage + ')';
objBody.insertBefore(objOverlay, objBody.firstChild);
var arrayPageSize = getPageSize();
var arrayPageScroll = getPageScroll();
// preload and create loader image
var imgPreloader = new Image();
// if loader image found, create link to hide lightbox and create loadingimage
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','loadingImage');
objLoadingImage.src = loadingImage;
objLoadingImage.style.position = 'absolute';
objLoadingImage.style.border = 'none';
objLoadingImage.style.zIndex = '150';
objLoadingImageLink.appendChild(objLoadingImage);
imgPreloader.onload = function() { }; // clear onLoad, as IE will flip out w/ animated gifs
return false;
}
imgPreloader.src = loadingImage;
// create lightbox div, same note about styles as above
var objLightBox = document.createElement("div");
objLightBox.setAttribute('id','lightbox');
objLightBox.style.display = 'none';
objLightBox.style.position = 'absolute';
objLightBox.style.zIndex = '100';
objLightBox.style.backgroundColor = '#EEEEEE';
objLightBox.style.padding = '10px';
objLightBox.style.borderBottom = '2px solid #666666';
objLightBox.style.borderRight = '2px solid #666666';
objLightBox.style.borderLeft = '2px solid #AAAAAA';
objLightBox.style.borderTop = '2px solid #AAAAAA';
objBody.insertBefore(objLightBox,objOverlay.nextSibling);
// create lightboxSectionImage div, same note about styles as above
var objImageSection = document.createElement("div");
objImageSection.setAttribute('id','lightBoxImageSection');
objImageSection.style.zIndex = '101';
objImageSection.style.display = '';
objLightBox.appendChild(objImageSection);
// create lightboxSectionHTML div, same note about styles as above
var objHTMLSection = document.createElement("div");
objHTMLSection.setAttribute('id','lightBoxHTMLSection');
objHTMLSection.style.zIndex = '101';
objHTMLSection.style.display = 'none';
objHTMLSection.style.overflow = 'auto';
objLightBox.appendChild(objHTMLSection);
// create the image link
var objLink = document.createElement("a");
objLink.setAttribute('href','#');
objLink.setAttribute('title','Click to close');
objLink.onclick = function () { hideLightBox(); return false; }
objImageSection.appendChild(objLink);
// preload and create close button image
var imgPreloadCloseButton = new Image();
// if close button image found...
imgPreloadCloseButton.onload = function() {
var objCloseButton = document.createElement("img");
objCloseButton.setAttribute('id','closeButton');
objCloseButton.src = closeButtonImage;
objCloseButton.onclick = function () { hideLightBox(); return false; }
objCloseButton.style.cursor = 'pointer';
objCloseButton.style.position = 'absolute';
objCloseButton.style.zIndex = '200';
objCloseButton.style.border = 'none';
objCloseButton.style.clear = 'both';
objCloseButton.style.top = '5px';
objCloseButton.style.right = '4px';
objLightBox.appendChild(objCloseButton);
return false;
}
imgPreloadCloseButton.src = closeButtonImage;
// create image
var objImage = document.createElement("img");
objImage.setAttribute('id','lightboxImage');
objImage.style.border = 'none';
objImage.style.clear = 'both';
objLink.appendChild(objImage);
// create details div, a container for the caption and keyboard message
var objLightBoxDetails = document.createElement("div");
objLightBoxDetails.setAttribute('id','lightboxDetails');
objLightBox.appendChild(objLightBoxDetails);
// create caption
var objCaption = document.createElement("div");
objCaption.setAttribute('id','lightboxCaption');
objCaption.style.display = 'none';
objCaption.style.fontSize = '0.8em';
objCaption.style.paddingTop = '0.4em';
objCaption.style.textAlign = 'center';
objLightBoxDetails.appendChild(objCaption);
}
// loadLightBoxImage()
// Preloads the image, then places in lightbox, centers and displays.
function loadLightBoxImage(imageURL,flashTitle) {
// prep objects
var objOverlay = document.getElementById('overlay');
var objLightBox = document.getElementById('lightbox');
var objImageSection = document.getElementById('lightBoxImageSection');
var objHTMLSection = document.getElementById('lightBoxHTMLSection');
var objCaption = document.getElementById('lightboxCaption');
var objImage = document.getElementById('lightboxImage');
var objLoadingImage = document.getElementById('loadingImage');
var objLightBoxDetails = document.getElementById('lightboxDetails');
var arrayPageSize = getPageSize();
var arrayPageScroll = getPageScroll();
// center loadingImage if it exists
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';
}
// set height of Overlay to take up whole page and show
objOverlay.style.height = (arrayPageSize[1] + 'px');
objOverlay.style.display = 'block';
// preload image
imgPreload = new Image();
imgPreload.onload = function() {
objImage.src = imageURL;
// center lightbox and make sure that the top and left values are not negative
// and the image placed outside the viewport
var lightboxTop = arrayPageScroll[1] + ((arrayPageSize[3] - 35 - imgPreload.height) / 2);
var lightboxLeft = ((arrayPageSize[0] - 20 - imgPreload.width) / 2);
objLightBox.style.top = (lightboxTop < 0) ? "0px" : lightboxTop + "px";
objLightBox.style.left = (lightboxLeft < 0) ? "0px" : lightboxLeft + "px";
objLightBoxDetails.style.width = imgPreload.width + 'px';
if(flashTitle != undefined){
objCaption.style.display = 'block';
objCaption.innerHTML = flashTitle;
} else {
objCaption.style.display = 'none';
}
if (objLoadingImage) { objLoadingImage.style.display = 'none'; }
// Hide flash and selects as they will 'peek' through the image in IE
hideSelects();
hideFlash();
objLightBox.style.display = 'block';
objImageSection.style.display = '';
objHTMLSection.style.display = 'none';
// After image is loaded, update the overlay height as the new image might have
// increased the overall page height.
arrayPageSize = getPageSize();
objOverlay.style.height = (arrayPageSize[1] + 'px');
// Check for 'x' keypress
document.onkeypress = getKey;
return false;
}
imgPreload.src = imageURL;
}
// loadLightBoxHTML(contentURL,width,height)
// Fetches the URL's content via ajax and sets the innerHTML of the HTML section
// to the returned HTML. Width and height refer to the window's width and height.
function loadLightBoxHTML(contentURL,width,height) {
// ajax variables
var results = "";
var request = "";
var complete = "";
var prepare = "";
var timer = 0;
// prep objects
var objOverlay = document.getElementById('overlay');
var objLightBox = document.getElementById('lightbox');
var objImageSection = document.getElementById('lightBoxImageSection');
var objHTMLSection = document.getElementById('lightBoxHTMLSection');
var objCaption = document.getElementById('lightboxCaption');
var objImage = document.getElementById('lightboxImage');
var objLoadingImage = document.getElementById('loadingImage');
var objLightBoxDetails = document.getElementById('lightboxDetails');
var arrayPageSize = getPageSize();
var arrayPageScroll = getPageScroll();
request = function() {
clearTimeout(timer);
results = getRequest(contentURL,'GET');
complete();
}
complete = function() {
objHTMLSection.innerHTML = results;
objHTMLSection.style.width = width + "px";
objHTMLSection.style.height = height + "px";
objCaption.style.display = 'block';
objCaption.innerHTML = '';
if (objLoadingImage) { objLoadingImage.style.display = 'none'; }
// Hide flash and selects as they will 'peek' through the image in IE
hideSelects();
hideFlash();
// center lightbox and make sure that the top and left values are not negative
// and the image placed outside the viewport
var lightboxTop = arrayPageScroll[1] + ((arrayPageSize[3] - 35 - height) / 2);
var lightboxLeft = ((arrayPageSize[0] - 20 - width) / 2);
objLightBox.style.top = (lightboxTop < 0) ? "0px" : lightboxTop + "px";
objLightBox.style.left = (lightboxLeft < 0) ? "0px" : lightboxLeft + "px";
objLightBoxDetails.style.width = width + 'px';
objLightBox.style.display = 'block';
objImageSection.style.display = 'none';
objHTMLSection.style.display = '';
// After image is loaded, update the overlay height as the content might 
// have increased the overall page height.
arrayPageSize = getPageSize();
objOverlay.style.height = (arrayPageSize[1] + 'px');
}
// start request
prepare = function() {
// center loadingImage if it exists
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';
}
// set height of Overlay to take up whole page and show
objOverlay.style.height = (arrayPageSize[1] + 'px');
objOverlay.style.display = 'block';
timer = setTimeout(request, 100);
}
prepare();
}
// hideLightBox()
// Hides the Light Box
function hideLightBox() {
// get objects
var objOverlay = document.getElementById('overlay');
var objLightBox = document.getElementById('lightbox');
// hide lightbox and overlay
objOverlay.style.display = 'none';
objLightBox.style.display = 'none';
// disable keypress listener
document.onkeypress = '';
// show flash and selects
showSelects();
showFlash();
}
// sendToLightBox(item,[type],[width],[height])
// Sends content of type to the LightBox. Type defaults to image, which expects an
// image url. Type can also be 'html', which expects a url to a page. Width and
// height are only used by type 'html' for the size of the window.
function sendToLightBox(item) {
var type = "image";
var width = 650;
var height = 500;
if(arguments.length > 1) {
type = arguments[1];
}
if(arguments.length > 2) {
width = arguments[2];
}
if(arguments.length > 3) {
height = arguments[3];
}
switch(type) {
case "image": {
loadLightBoxImage(item,"Click On Image To Close");
break;
}
case "html": {
loadLightBoxHTML(item,width,height);
break;
}
default: {
// Do Nothing
break;
}
}
}
addLoadEvent(initLightBox); // run initLightBox onLoad

