织梦实现嵌套li加currentstyle的二级菜单

<ul>          <li><a href='{dede:global.cfg_cmsurl/}/'>              <span class="cn">首页</span>              <span class="en">Home</span>          </a></li>          {dede:channel type='top' row='10' currentstyle='<li class="current"><a href="~typelink~" ~rel~>#<span class="cn">~typename~</span><span class="en">~dirName~</span></a></li>'          }          <li>              <a href='[field:typeurl/]' [field:rel/]>                  <span class="cn">[field:typename/]</span>                  <span class="en">[field:typedir runphp='yes' commet="获得最后目录名，英文"]                      $l=split("/", @me);                      @me=array_pop($l);                  [/field:typedir]</span>              </a>          </li>          {/dede:channel}      </ul>  

而且在底部
 

{dede:channelartlist typeid='top'}      <ul id="dropmenu{dede:field.typeid/}">      {dede:channel type='son' noself='yes'}          <li><a href="[field:typelink/]">[field:typename/]</a></li>      {/dede:channel}      </ul>  {/dede:channelartlist}  

剩下的就是css和js的工作了。