codice:
<?xml version="1.0" encoding="iso-8859-1"?>

  <!DOCTYPE html 
     PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
     "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

  <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
    <head>
      <title>Code Example by DYNAMIC+</title>

      <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
      <meta http-equiv="Content-Language" content="en-us" />

      <script type="text/javascript">
      <!--

        var _maxFlash = 5;	/* number of flashes to do */
        var _tpfFlash = 400;	/* delay between flashing  */
        var _curFlash = 0;


        function flashWindow( )
        {
          if ( _curFlash <= _maxFlash*2 )
          {
            _curFlash++;
            if ( _curFlash%2 == 0 )
              window.top.blur( );
            else
              window.top.focus( );

            window.setTimeout( 'flashWindow( );', _tpfFlash );
          }

          else
            _curFlash = 0;
        }
       
      //-->
      </script>

    </head>
    <body>

      <div>
       Flash Me!
      </div>

    </body>
  </html>
non si vede nella taskbar, tuttavia, su piu' finestre si vede
l'effetto!