function closeWindow()
  {
    if (opener) window.close();
    else window.history.go(-1);
  }

  function openWindow (url,name)
  {	
    someWindow=window.open(url,name,"width=720,height=500,toolbar=no,menubar=no,scrollbars=yes,status=yes,location=no");
    someWindow.focus();
  }