var myTWin = window.myTWin;
      function OpenMyWin(link)
      {
        link.target = '_MyWin';
        if (myTWin != null && !myTWin.closed)
        {
          myTWin.focus();
          myTWin.location.href = link.href;
        }
        else
        {
          myTWin = window.open(link.href,'_MyWin',"width=640px,height=480px,status=no,scrollbars=no,top=30,left=30");
          if (myTWin != null)
            myTWin.focus();
        }
        return myTWin;
      }