// ver también: /styles/nav.css

sfHover = function() {
	var hOverClass = " sfhover";
	var regEx = new RegExp(hOverClass + "\\b");
	var menus = ["nav", "menulat"];
	for (var i=0; i<menus.length; i++){
		var menu = document.getElementById(menus[i]);
		if (menu){
			var els = menu.getElementsByTagName("LI");
			if (els)
				emuleHover(els)
		}
	}
	function emuleHover(els){
		for (var i=0; i<els.length; i++) {
			els[i].onmouseover=function() {
				this.className+=hOverClass;
			}
			els[i].onmouseout=function() {
				this.className=this.className.replace(regEx, "");
			}
		}
	}
}
if (window.attachEvent) window.attachEvent("onload", sfHover);