sfHover = function() {
	var sfEls = document.getElementById("nav").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
			this.className="sfhover";
			if(!loaded[this.id]){
				loadNavMenu(this.id,false);
			}
		}
		sfEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp("sfhover\\b"), "");
		}
	}
}
if (window.addEventListener){ 
	window.addEventListener("load", sfHover, false); 
} else if (window.attachEvent){ 
	window.attachEvent("onload", sfHover); 
}