帝国cms 如何制作搜索功能

<form action="[!--news.url--]e/search/index.php" method="post" name="searchform" id="searchform">
<table border="0" cellspacing="6" cellpadding="0">
<tr>
<td><strong>站内搜索：</strong>
<input name="keyboard" type="text" size="32" id="keyboard" class="inputText" />
<input type="hidden" name="show" value="title" />
<input type="hidden" name="tempid" value="1" />
<select name="tbname">
<option value="news">新闻</option>
<option value="download">下载</option>
<option value="photo">图库</option>
<option value="flash">FLASH</option>
<option value="movie">电影</option>
<option value="shop">商品</option>
<option value="article">文章</option>
<option value="info">分类信息</option>
</select>
</td>
<td><input type="image" class="inputSub" src="[!--news.url--]skin/default/images/search.gif" />
</td>
<td><a href="[!--news.url--]search/" target="_blank">高级搜索</a></td>
</tr>
</table>
</form>