startList = function() {
if (document.all&&document.getElementById) {
	navRoot = document.getElementById("menu");
		for (i=0; i<navRoot.childNodes.length; i++) {
			node = navRoot.childNodes[i];
				if (node.nodeName=="LI") {
					node.onmouseover=function() {
					this.className+=" over";
				}
			node.onmouseout=function() {
		this.className=this.className.replace
	(" over", "");
   }
   }
  }
 }
}


function mostrar(e)
{
	var e = document.getElementById(e);	
	if(e.style.display == 'block')
		e.style.display = 'none';
	else
		e.style.display = 'block';

}