function popup(loc,name,w,h)
{
  options="menubar=no,location=no,toolbar=no,resizeable=no,status=yes,width=" + w + ",height=" + h + ",scrollbars=yes";
  newWindow = window.open(loc,name,options);
  if(!newWindow.opener)
  {
     newWindow.opener = window;
     newWindow.focus();
  }
}