function hideItems() {
	var listLi = document.getElementById("nav").getElementsByTagName("li");
	for(i=0;i<listLi.length;i++) {
		if (listLi[i].id=="activado")
			listLi[i].id="";
	}

	var list = document.getElementById("subNav").getElementsByTagName("ul");
	for(i=0;i<list.length;i++) {
		list[i].style.display="none";
	}
}

function navMenu() {
	if (!document.getElementsByTagName){ return; }
	var anchors = document.getElementsByTagName('a');
	
	for (var i=0; i<anchors.length; i++){
		var anchor = anchors[i];
		var relAttribute = String(anchor.getAttribute('rel'));
		if (relAttribute.toLowerCase().match('menutrigger')){
			anchor.onclick = function() {
				var nameAttribute = this.getAttribute('name') + "Nav";
				var thismenu = document.getElementById(nameAttribute);

				hideItems();

				this.parentNode.id="activado";
				thismenu.style.display="inline";
				return false;
			}
		}
		else if (relAttribute.toLowerCase().match('contenido')){
			anchor.onclick = function() {
				hideItems();
				this.parentNode.id="activado";
			}
		}
	}
}