sfHover = function() {

	if (document.getElementById("nav")) {
		var sfEls = document.getElementById("nav").getElementsByTagName("li");
		if (sfEls) {
			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 (document.getElementById("menu2")) {
		var sfEls2 = document.getElementById("menu2").getElementsByTagName("li");
		if (sfEls2) {
			for (var i=0; i<sfEls2.length; i++) {
				sfEls2[i].onmouseover=function() {
					this.className+=" sfhover";
				}
				sfEls2[i].onmouseout=function() {
					this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
				}
			}
		}	
	}

	if (document.getElementById("menu3")) {
		var sfEls3 = document.getElementById("menu3").getElementsByTagName("li");
		if (sfEls3) {
			for (var i=0; i<sfEls3.length; i++) {
				sfEls3[i].onmouseover=function() {
					this.className+=" sfhover";
				}
				sfEls3[i].onmouseout=function() {
					this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
				}
			}
		}
	}

}

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