sfHover = function() {
	var sfEls = document.getElementById("mainnav").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 sfEl2s = document.getElementById("sectionnav").getElementsByTagName("li");
	
	for (var i=0; i < sfEl2s.length; i++) {
		sfEl2s[i].onmouseover=function() {
			this.className+=" sfhover2";
		}
		sfEl2s[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" sfhover2\\b"), "");
		}
	}
}

/* only IE6 sees this? */
if (window.attachEvent) {
	window.attachEvent("onload", sfHover);
}