哪位大神帮我下我想实现一级栏目切换并多项选择二级栏目现在写成

哪位大神帮我下，我想实现一级栏目切换并多项选择二级栏目 现在写成这样，切换不了，不知道怎么写了

  <div class="sy_menuCate mb10">
     <ul>
          {category module=services pid=0 return=c1}
    <li><a href="javascript:;"><img src="{dr_thumb($c1.thumb,100,100)}" width="70" height="70"><p>{$c1.name}</p></a></li>
 
{/category}

   {list action=category pid=$c1.id return=c2}
                                                           <ul class="brandc">

                                                        <table width="100%" border="0" cellspacing="2" cellpadding="2">
                                                              <tbody>
                                                                  <tr>
                                                                            <td width="50%" rowspan="2" align="center"><a href="{$t.url}">
                                                                                                    <img src="{dr_thumb($c2.thumb,70,50)}" width="70" height="50"></a></td>
                                                                            <td width="50%" height="48"><a href="{$c2.url}"><strong><h2>{$c2.name}</h2></strong></a></td>
                                                                  </tr>
                                                                            <tr></tr>
                                                              </tbody>
                                                        </table>
                                                     </ul>
    {/list}

</ul>
       </div>