function creaAjax(){
  var objetoAjax=false;
  try {
   objetoAjax = new ActiveXObject("Msxml2.XMLHTTP");
  } catch (e) {
   try {
     objetoAjax = new ActiveXObject("Microsoft.XMLHTTP");
     } 
     catch (E) {
     objetoAjax = false;
   }
  }

  if (!objetoAjax && typeof XMLHttpRequest!='undefined') {
   objetoAjax = new XMLHttpRequest();
  }
  return objetoAjax;
}

 function FAjax (url,capa,valores,metodo)
{
   var ajax=creaAjax();
   var capaContenedora = document.getElementById(capa);
 if(metodo.toUpperCase()=='POST'){
        document.write="Hola Editorial";
    ajax.open ('POST', url, true);
    ajax.onreadystatechange = function() {
         if (ajax.readyState==1) {
                 capaContenedora.innerHTML="<center>Cargando<br><IMG SRC=cargando.gif></center>";
         }
         else if (ajax.readyState==4){
            if(ajax.status==200)
            {
                 document.getElementById(capa).innerHTML=ajax.responseText; 
            }
            else if(ajax.status==404)
                 {

                     capaContenedora.innerHTML = "La direccion existe";
                 }
             else
                 {
                     capaContenedora.innerHTML = "Error: ".ajax.status;
                 }
        }
    }
    ajax.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
    ajax.send(valores);
    return;
}
if (metodo.toUpperCase()=='GET'){

    ajax.open ('GET', url, true);
    ajax.onreadystatechange = function() {
         if (ajax.readyState==1) {
                 capaContenedora.innerHTML="<center>Cargando<br><IMG SRC=cargando.gif></center>";
         }
         else if (ajax.readyState==4){
            if(ajax.status==200){ 
                 document.getElementById(capa).innerHTML=ajax.responseText; 
            }
            else if(ajax.status==404)
                 {

                     capaContenedora.innerHTML = "La direccion existe";
                 }
                 else
                 {
                     capaContenedora.innerHTML = "Error: ".ajax.status;
                 }
        }
    }
    ajax.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
    ajax.send(null);
    return
}
}
function v (pagina) {
		var opciones="toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=yes, resizable=no, width=600, height=365, top=85, left=140";
		window.open(pagina,"",opciones);
}
function cierra () {
	window.close();
}
function quita(texto) {
		document.write(texto);
}