var newWin = '';

  function picWin(hrf, wd, ht){
    // if (!newWin.closed){
      // newWin.close();
    // }
    newWin = window.open(hrf,"popWin","toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=yes,copyhistory=no,width=" + wd + ",height=" + ht);
    newWin.focus();
  }