var w = window;
      function openWin(url) {
         if ((w == window) || w.closed) {
            w = open(url,"program","width=580,height=630,status=yes,scrollbars=yes,resizable=yes");
         } else {
            w.focus();
            w = open(url,"program","width=580,height=630,status=yes,scrollbars=yes,resizable=yes");
         }
         return(false);
            }