function crearAjax()
{
   var xmlhttp = false;
   try
   {
      xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
   }
   catch(e)
   {
      try
      {
         xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
      }
      catch(E)
      {
         xmlhttp = false;
      }
   }
   if(!xmlhttp && typeof XMLHttpRequest != 'undefined')
      xmlhttp = new XMLHttpRequest();
   return xmlhttp;
}

var flag = 0;
function time (lang)
{
   if (flag == 0)
      flag = 1;
   else
      flag = 0;
   var param;
   ajax = crearAjax ();
   ajax.open ("GET", "publicacion.php?pub=" + flag + "&lang=" + lang, true);
   ajax.onreadystatechange = function ()
   {
      if (ajax.readyState == 4)
      {
         document.getElementById('publicacion').innerHTML = ajax.responseText
      }
      else
      {
         document.getElementById('publicacion').innerHTML = '<b>Cargando..</b>';
      }
   }
   ajax.send(null)
   param = "time('" + lang + "');";
   setTimeout(param, 60000);
}