var active="1";
function ir(pagina,ob){
	//top.frames['framePrincipal'].location=pagina;
	if(ob!=null){
	document.getElementById(active).className="";
	active=ob.parentNode.id;
	ob.parentNode.className="selected";
	}
	llamarPagina(pagina);
	return false;
}
function llamarPagina(urlt){
	            $("#contenido").fadeTo("fast",0);
				document.getElementById("loading").style.display="";
				//$("#loading").fadeTo("fast",1);
                $.ajax({
                        type: 'GET',
                        url: urlt,
                        success: function(msg){
							cadena=unescape(msg);
							cadenafinal=cadena.replace(/\+/gi," ");
                        $("#contenido").html(cadenafinal);
						$("#contenido").fadeTo("normal",1);
						//$("#loading").fadeTo("fast",0);
						document.getElementById("loading").style.display="none";
                        }
						
                });
}