function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		nav2_over = newImage("/images/nav2-over.gif");
		nav2_nav3_over = newImage("/images/nav2-nav3_over.gif");
		nav3_over = newImage("/images/nav3-over.gif");
		nav3_nav4_over = newImage("/images/nav3-nav4_over.gif");
		nav4_nav3_over = newImage("/images/nav4-nav3_over.gif");
		nav4_over = newImage("/images/nav4-over.gif");
		nav5_nav4_over = newImage("/images/nav5-nav4_over.gif");
		nav5_over = newImage("/images/nav5-over.gif");
		nav5_nav6_over = newImage("/images/nav5-nav6_over.gif");
		nav6_nav5_over = newImage("/images/nav6-nav5_over.gif");
		nav6_over = newImage("/images/nav6-over.gif");
		nav6_nav7_over = newImage("/images/nav6-nav7_over.gif");
		nav7_nav6_over = newImage("/images/nav7-nav6_over.gif");
		nav7_over = newImage("/images/nav7-over.gif");
		donate_over = newImage("/images/donate-over.gif");
		preloadFlag = true;
	}
}

function addEvent(elm, evType, fn, useCapture) {
	if(elm.addEventListener){
		elm.addEventListener(evType, fn, useCapture);
		return true;
		} 
		else if (elm.attachEvent)
		{
			var r = elm.attachEvent('on' + evType, fn);
			return r;
			} else {
				elm['on' + evType] = fn;
				}
			}

var newWindow = null;

function closeWin(){
	if (newWindow != null){
		if(!newWindow.closed)
			newWindow.close();
	}
}

function popUpWin(url, type, strWidth, strHeight){
	
	closeWin();
		
	type = type.toLowerCase();
	
	if (type == "fullscreen"){
		strWidth = screen.availWidth;
		strHeight = screen.availHeight;
	}
	var tools="";
	if (type == "standard") tools = "resizable,toolbar=yes,location=yes,scrollbars=yes,menubar=yes,width="+strWidth+",height="+strHeight+",top=0,left=0";
	if (type == "console" || type == "fullscreen") tools = "resizable,toolbar=no,location=no,scrollbars=no,width="+strWidth+",height="+strHeight+",left=0,top=0";
	newWindow = window.open(url, 'newWin', tools);
	newWindow.focus();
}

function doPopUp(e)
{
//set defaults - if nothing in rel attrib, these will be used
var t = "standard";
var w = "780";
var h = "580";
//look for parameters
attribs = this.rel.split(" ");
if (attribs[1]!=null) {t = attribs[1];}
if (attribs[2]!=null) {w = attribs[2];}
if (attribs[3]!=null) {h = attribs[3];}
//call the popup script
popUpWin(this.href,t,w,h);
//cancel the default link action if pop-up activated
if (window.event) 
	{
	window.event.returnValue = false;
	window.event.cancelBubble = true;
	} 
else if (e) 
	{
	e.stopPropagation();
	e.preventDefault();
	}
}

function findPopUps()
{
var popups = document.getElementsByTagName("a");
for (i=0;i<popups.length;i++)
	{
	if (popups[i].rel.indexOf("popup")!=-1)
		{
		// attach popup behaviour
		popups[i].onclick = doPopUp;
		// add popup indicator
		if (popups[i].rel.indexOf("noicon")==-1)
			{
			popups[i].style.backgroundImage = "url(pop-up.gif)";
			popups[i].style.backgroundPosition = "0 center";
			popups[i].style.backgroundRepeat = "no-repeat";
			popups[i].style.paddingLeft = "0px";
			}
		// add info to title attribute to alert fact that it's a pop-up window
		popups[i].title = popups[i].title + " [Opens in pop-up window]";
		}
	}
}

addEvent(window, 'load', findPopUps, false);