function addEvent(object, type, handler){
	if (object.addEventListener)
		object.addEventListener(type, handler, false);
	else if (object.attachEvent)
		object.attachEvent(['on',type].join(''),handler);
	else
		object[['on',type].join('')] = handler;
}
<!--//--><![CDATA[//><!--
function sfHover() {
	var sfEls = document.getElementById("nav").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
			this.className+="sfhover";
		}
		sfEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp("sfhover"), "");
		}
	}
}
addEvent(window,"load",function(){
	sfHover()
});
//--><!]]>

function openWindow(url){
	popupWin = window.open(url, 'openWin', "width=450, height=450, scrollbars=yes, resizable=yes"); 
}