behaviour_rules[".arbol_apartados_leccion li"] = function(element){
			element.onclick = function(evt){
				var evento = evt ? evt : window.event;
				var target = evento.target ? evento.target : evento.srcElement;
				if(target.className=="close") target.className="open";
				else target.className="close";
				
				Ajax("../componente/ocultarMostrarApartado?id=896&apartado="+target.id.substr(8))
				
				if (!e) var e = window.event;
				e.cancelBubble = true;
				if (e.stopPropagation) e.stopPropagation();
	
				return false;
			}
		}
		
		behaviour_rules[".arbol_apartados_leccion li a"] = function(element){
			element.onclick = function(evt){
				if (!e) var e = window.event;
				e.cancelBubble = true;
				if (e.stopPropagation) e.stopPropagation();
			}
		}
		
		function Ajax(query,func){
			if (window.XMLHttpRequest) request=new XMLHttpRequest()
			else if (window.ActiveXObject) request=new ActiveXObject("Microsoft.XMLHTTP")
			
			if (request!=null)
			{
				if(func) request.onreadystatechange=func;
				request.open("GET",query,true)
				request.send(null)
			}
		}