/************************ Iniciamos las peticiones ***************************/



function recibeidsincache(_pagina,valorget,valorpost,capa){ 
ajax=objetus(_pagina);
if(valorpost!=""){
ajax.open("GET", _pagina+""+valorget,true);
//ajax.open("POST", _pagina+"?"+valorget+"&tiempo="+new Date().getTime(),true);
} else {
ajax.open("GET", _pagina+""+valorget,true);
}
ajax.onreadystatechange=function() {
 if (ajax.readyState==1){
  document.getElementById(capa).innerHTML = '';
  }
  if (ajax.readyState==4) {
   if(ajax.status==200)
   	{
   		//document.getElementById(capa).innerHTML = ajax.responseText;
		//document.getElementById(id_contenedor).innerHTML = pagina_requerida.responseText;
		SetContainerHTML(capa, ajax.responseText, true);
	}
   else if(ajax.status==404)
                                             {
 capa.innerHTML = "La direccion no existe";
                                             }
                           else
                                             {
                            capa.innerHTML = "Error: ".ajax.status;
                                             }
}
}
if(valorpost!=""){
ajax.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
ajax.send(valorpost);
} else {
ajax.send(null);
}
}