sfHover = function() {
	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\\b"), "");
		}
	}
}
if (window.attachevent) window.attachevent("onload", sfhover);