sfHover = function() {
			var sfEls = document.getElementById("nav").getElementsByTagName("ul");
			for (var i=0; i<sfEls.length; i++) {
				sfEls[i].parentNode.onmouseover= function() {
					this.lastChild.className+=" soasfhover";
				}
				sfEls[i].parentNode.onmouseout=function() {
					this.lastChild.className=this.lastChild.className.replace(new RegExp(" soasfhover\\b"), "");
				}
			}
		}
		if (window.attachEvent) window.attachEvent("onload", sfHover);