sfHover = function() {
	var sfEls = document.getElementById("menu").getElementsByTagName("LI");
	var sfElsLength = sfEls.length;
	for (var i=0; i<sfElsLength; i++) {
		sfEls[i].onmouseover = function() {
			if (this.className == "") {
				this.className = "over";
			}
			else {
				this.className += " over";
			}
		}
		sfEls[i].onmouseout = function() {
			if (this.className == "over") {
				this.className = "";
			}
			else {
				this.className = this.className.replace(new RegExp(" over\\b"), "");
			}
		}
	}
}
if (window.attachEvent) window.attachEvent("onload", sfHover);