window.onload = function () {
  var tree = document.getElementById("menu_arbol");
  var lists = [ menu_arbol ];
  for (var i = 0; i < tree.getElementsByTagName("ul").length; i++)
	lists[lists.length] = tree.getElementsByTagName("ul")[i];
  for (var i = 0; i < lists.length; i++) {
	var item = lists[i].lastChild;
	while (!item.tagName || item.tagName.toLowerCase() != "li")
		item = item.previousSibling;
		item.className += " cierre";
  }
};


window.addEvent('domready', function(){
	var mySlide = new Fx.Slide('1planv');
	mySlide.hide()
		$('toggle_1').addEvent('click', function(e){
			e = new Event(e);
			mySlide.toggle();
			e.stop();
		});
});

window.addEvent('domready', function(){
	var mySlide = new Fx.Slide('1plana');
	mySlide.hide()
		$('toggle_2').addEvent('click', function(e){
			e = new Event(e);
			mySlide.toggle();
			e.stop();
		});
});
