sfHover = function() {
	var num_ids = 2;
	var myIds = new Array(num_ids);
	myIds[0] = "listmenu";
	myIds[1] = "left_nav";
	
	for (var cur_id=0; cur_id<num_ids; cur_id++) {
		var sfEls = document.getElementById(myIds[cur_id]).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); /* runs if IE */