function addLoadEvent(func) {
   var oldonload = window.onload; 
   if (typeof window.onload != 'function') {
      window.onload = func; 
      }
   else {
      window.onload = function() {
         if (oldonload) {
            oldonload(); 
            }
         func(); 
         }
      }
   }
var tipHolder;  
function toolTip(title,descriptionHolderID){
tipHolder = document.getElementById(descriptionHolderID);
tipHolder.innerHTML = title;
}
function toolTipOut(){
tipHolder.innerHTML = '';
}
function setOpacity(elem, opacityAsInt)
 {
    var opacityAsDecimal = opacityAsInt;

    if (opacityAsInt > 100)
    opacityAsInt = opacityAsDecimal = 100;
    else if (opacityAsInt < 0)
    opacityAsInt = opacityAsDecimal = 0;

    opacityAsDecimal /= 100;
    if (opacityAsInt < 1)
    opacityAsInt = 1;
    elem.style.opacity = opacityAsDecimal;
    elem.style.filter = "alpha(opacity=" + opacityAsInt + ")";
}
function createGallery(gallery){
this[gallery] = new Array();
}
function addImage(image,title,gallery){
tempObj = new Object();
tempObj["image"] = image;
tempObj["title"] = title;
this[gallery].push(tempObj);
}
function initGallery(gallery,galleryHolderID,navHolderID,descriptionHolderID,firstImage){
	this[gallery + "_settings"] = new Object();
	this[gallery + "_settings"].nav = document.getElementById(navHolderID);
	this[gallery + "_settings"].holder = document.getElementById(galleryHolderID);
	this[gallery + "_settings"].activeimage = 2;
	this[gallery + "_settings"].altimage = 1;
//height:264px; overflow:hidden; update apr1 2011 myles
	this[gallery + "_settings"].holder.innerHTML = '<div id="' + gallery + 'holder1" style="position:absolute; z-index: 2;"><img src="#" id="' + gallery + 'holder1image" /></div><div id="' + gallery + 'holder2" style="overflow:hidden; position:absolute; z-index: 1;"><img src="#" id="' + gallery + 'holder2image" /></div>'
	this[gallery + "_settings"].description =document.getElementById(descriptionHolderID);

	showImage(gallery,firstImage);
	
}
function buildNav(gallery,imageNum){
	navHTML = "";
if(this[gallery].length >1){
	for(i=0;i< this[gallery].length;i++){
	boldStart = "";
	boldEnd = "";
	if (i+1 == imageNum ){
	boldStart = '<span class="active">';
	boldEnd = "</span>";
	}
	myLink = "<a href=\"javascript:showImage('" + gallery + "'," + (i+1) + ")\">" + boldStart + "&nbsp;" + (i+1) + "&nbsp;" + boldEnd + "</a>";
	navHTML = navHTML + myLink;
	}
}
	this[gallery + "_settings"].nav.innerHTML = navHTML;
}
function fadeUp(gallery){

	window[gallery + "_settings"].currOpacity = window[gallery + "_settings"].currOpacity + 8;
	if(window[gallery + "_settings"].currOpacity > 100 ){
		window[gallery + "_settings"].currOpacity = 100;
		clearInterval(window[gallery + "_settings"].fadeInterval);
	}
	
setOpacity(window[gallery + "_settings"].activeholder, window[gallery + "_settings"].currOpacity);
}
function showImage(gallery,imageNum){
if (this[gallery + "_settings"].activeimage == 2){
	this[gallery + "_settings"].activeimage = 1;
	this[gallery + "_settings"].altimage = 2;
}else{
	this[gallery + "_settings"].activeimage = 2;
	this[gallery + "_settings"].altimage = 1; 
}
buildNav(gallery,imageNum);
this[gallery + "_settings"].activeholder = document.getElementById(gallery + "holder" + this[gallery + "_settings"].activeimage);
this[gallery + "_settings"].altholder = document.getElementById(gallery + "holder" + this[gallery + "_settings"].altimage);
this[gallery + "_settings"].activeholder.style.display = "none";

this[gallery + "_settings"].activeimageholder = document.getElementById(gallery + "holder" + this[gallery + "_settings"].activeimage +"image");
this[gallery + "_settings"].activeimageholder.onload = function () {

	 

window[gallery + "_settings"].activeholder.style.display = 'block';
if (typeof(window[gallery + "_settings"].firstTime) == "undefined"){
window[gallery + "_settings"].firstTime =1;
}else{
window[gallery + "_settings"].currOpacity = 0;
setOpacity(window[gallery + "_settings"].activeholder,window[gallery + "_settings"].currOpacity );
window[gallery + "_settings"].fadeInterval = setInterval("fadeUp('" + gallery + "');",50);
window[gallery + "_settings"].altholder.style.MozOpacity = 1;
}
window[gallery + "_settings"].activeholder.style.zIndex = 2;
window[gallery + "_settings"].altholder.style.zIndex = 1;
    };
this[gallery + "_settings"].activeimageholder.src =  this[gallery][imageNum-1].image;


this[gallery + "_settings"].description.innerHTML = this[gallery][imageNum-1].title;
}