sfHover = function() {
	if (!document.getElementsByTagName) return false;
	var obj = document.getElementById("nav");
	if (obj) {
		var sfEls = obj.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"), "");
			}
		}
	} else {
		var obj = document.getElementById("ienav");
		var sfEls = obj.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);