function openWin( windowURL, windowName, windowFeatures) {
       window.open( windowURL, windowName, windowFeatures ) ;
  };

  function mapWin() {
      openWin('images/map.gif','MapWin','resizeable=no,toolbar=no,menubar=no,scrollbars=no,status=no,width=260,alwaysRaised,height=260,top=(screen.availHeight-600)/2, left=(screen.availWidth-600)/2');
  };