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

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

//nuevo menu
function showlayer(layer){
var myLayer = document.getElementById(layer);
if(myLayer.style.display=="none" || myLayer.style.display==""){
myLayer.style.display="block";
} else {
myLayer.style.display="none";
}
}