<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>