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','toolbar=0,location=0,scrollbars=0,width=620,height=430,resizable=1,top=0,left=0');
          if (myTWin != null)
            myTWin.focus();
        }
        return myTWin;
      }