织梦dedecms网站怎么实现按栏目分类搜索的方法

<form action="{dede:field name='phpurl'/}/search.php" name="formsearch">

        <div class="form">

          <h4>搜索</h4>

           <input type="hidden" name="kwtype" value="0" />

          <input type="hidden" name="searchtype" value="titlekeyword" />

           <input name="keyword" type="text" class="search-keyword" id="search-keyword" />

           <select name="typeid" class="search-option" id="typeid">

 <option value='0' selected='1'>全部栏目</option>

{dede:channelartlist typeid='top' }

{dede:type} <option value='[field:id/]'>[field:typename/]</option>{/dede:type}

{dede:channel type='son' noself='yes'}

<option value='[field:id/]'>-[field:typename/]</option>

{/dede:channel}

{/dede:channelartlist}

</select><button type="submit" class="search-submit">搜索</button>

        </div>

        </form>