sfHover = function() {

			if (!document.getElementsByTagName) return false;

			var sfEls = document.getElementById("nav").getElementsByTagName("li");

			var sfEls1 = document.getElementById("subnav").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"), "");

				}

			}

			for (var i=0; i<sfEls1.length; i++) {

				sfEls1[i].onmouseover=function() {

					this.className+=" sfhover1";

				}

				sfEls1[i].onmouseout=function() {

					this.className=this.className.replace(new RegExp(" sfhover1\\b"), "");

				}

			}

		}

		if (window.attachEvent) window.attachEvent("onload", sfHover);