{eyou:type type='top' id='field1'}   
<div class="product01">
    <div class="product07"><b>{$field1.typename}</b></div>
    <!--left nav-->
    <div class="sidenav">
      <ul>
          {eyou:channel type='sonself' currentstyle="cu" id='field2'}
           <li><a href="{$field2.typeurl}" class="sidenava {$field2.currentstyle}"><p>{$field2.typename}</p></a></li>
          {/eyou:channel} 
      </ul>
    </div>
  </div>
  {/eyou:type}