sfHover = function() {	
var sfEls = document.getElementById("menu").getElementsByTagName("LI");	
for (var i=0; i<sfEls.length; i++) {		
	sfEls[i].onmouseover=function() {			
		this.className+=" hover";		
	}		
	sfEls[i].onmouseout=function() {			
		this.className=this.className.replace(new RegExp(" hover\\b"), "");		
	}	}}
	
	if (window.attachEvent) window.attachEvent("onload", sfHover);