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

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