var remote = null;
function shoplink(Location,Shop) {

  remote = window.open();
  if (remote != null)
  {  if (remote.opener == null) {remote.opener = self;}


  switch (Shop) {
  case "carrefour":
       remote.document.location.href = "http://www.brita.es/llenatedepureza/tracking/tracking_carrefour.html?Location="+Location;
  break;
  case "elcorteingles":
       remote.document.location.href = "http://www.brita.es/llenatedepureza/tracking/tracking_carrefour.html?Location="+Location;
  break;
  }

  }
  remote.opener.name = "opener";
}