<script type="text/javascript">     
  $('span.forumViewed').each(function (i, g) {     
       $.get($(this).parent().find('a.forum').attr('href'), function (data) {     
        g.innerHTML = '[' + $('td.forumOnlineBar:first', data).html().replace('$USERNAME$', '') + ']';     
       });     
  });     
  </script>