В {custom} не работает кнопка Популярные (Рекомендуемые), как сделать кнопку?

<div class="dop_btn">
       <a href="#" class="btn" onclick="dle_change_sort('rating','asc'); return false;">Популярные</a>
       <a href="javascript:void(0)" class="btn" onclick="go('/hit/','rating')">Рекомендуемые</a>
     </div>

 <form action="" method="POST" id="go">
                            <input type="hidden" name="dledirection" value="desc">
                            <input type="hidden" name="dlenewssortby" value="" id="gval">
                            <input type="hidden" name="set_direction_sort" value="dle_direction_cat">
                            <input type="hidden" name="set_new_sort" value="dle_sort_cat">
                        </form>  

  <script type="text/javascript">
                            function go(url, val) {
                                $('#go').attr('action', url);
                                $('#gval').attr('value', val);
                                $('#go').submit()
                            }
                        </script>

 <a href="javascript:void(0)" class="btn" onclick="go('/main/','news_read')">Популярные</a>
           <a href="javascript:void(0)" class="btn" onclick="go('/main/','rating')">Рекомендуемые</a>