sfHover = function() {
	var sfEls = document.getElementById("sideNav").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("sfhover", "");
		}
	}
}
if (document.all&&document.getElementById) window.onload=sfHover;