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"), "");
		}
	}
}

sfHoverMultiple = function() {

	var els=document.getElementsByTagName("ul");
	
	for (var j=0;j<els.length;j++) {
	
		if (els[j].className=="nav") {
			var sfEls = els[j].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", sfHoverMultiple);