sfHover = function(){
	var sfEls = document.getElementById("menu").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\\b"), "");
		}
	}
}
if(window.attachEvent)
	window.attachEvent("onload", sfHover);