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"), "");
		}
	}
}

sfHover2 = function() {
var sfEls2 = document.getElementById("nav2").getElementsByTagName("LI");
	for (var j=0; j<sfEls2.length; j++) {
		sfEls2[j].onmouseover=function() {
			this.className+=" sfhover";
		}
		sfEls2[j].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
		}
	}
}
if (window.attachEvent) window.attachEvent("onload", sfHover);
if (window.attachEvent) window.attachEvent("onload", sfHover2);