sfHover = function() {
	var m = document.getElementById("nav");
	var sfEls;
	if(m)
		sfEls = document.getElementById("nav").getElementsByTagName("LI");
	if(sfEls)
	{
		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);