帝国cms的多条件搜索案例

<form name="searchform" method="post" action="/e/search/index.php"><input type="hidden" name="tempid" value="1"><input type="hidden" name="andor" value="and"><input type="hidden" name="tbname" value="xiazai" /><TABLE class="listforum listforumtop" cellSpacing=0 cellPadding=0> <THEAD>  <TR>    <TD class=subclassi colSpan=4><SPAN>类型：</SPAN><select name="classid"><option value="">所有</option><option value="99">油画</option><option value="109">古画</option><option value="100">国画</option><option value="113">书法</option><option value="101">装饰画</option><option value="111">佛画</option><option value="102">其他</option></select> </TD></TR><TR><TD class=subclassi colSpan=4><SPAN>级别：</SPAN><input type="hidden" name="show[]" value="filetype"><input type="hidden" name="hh[]" value="EQ"><select name="keyboard[]"class="sjput"> <option value="">不限</option> <option value="欣赏级别">欣赏级别</option><option value="印刷一级">印刷一级</option><option value="印刷二级">印刷二级</option></select>  <TR><TD class=subclassi colSpan=4><SPAN>大小：</SPAN><input type="hidden" name="show[]" value="filesize"><input type="hidden" name="hh[]" value="EQ"><select name="keyboard[]"class="sjput">                  <option value="">不限</option>                  <option value="0__10">10m以下</option>                  <option value="10__50">10-50m</option>                  <option value="50__100">50-100m</option>                  <option value="100__500">100-500m</option>                  <option value="500__10000000000000">500m以上</option>               </select>                         </TD></TR>            <TR>    <TD class=subclassi colSpan=4><SPAN>分数：</SPAN><input type="hidden" name="show[]" value="fs"><input type="hidden" name="hh[]" value="EQ"><select name="keyboard[]"class="sjput">                  <option value="">不限</option>                  <option value="0">0分</option>                  <option value="1__10">1-10分</option>                  <option value="10__50">10-50分</option>                  <option value="50__100">50-100分</option>                  <option value="100__100000000000">100分以上</option>               </select>                        </TD></TR>                   <TR>    <TD class=subclassi colSpan=4>            <input type="hidden" name="show[]" value="title">          <input type="hidden" name="hh[]" value="LK">      <INPUT class=soso   onblur="if (value ==''){value='[!--keyboard--]'}" style="COLOR: #999"  onfocus="if (value =='[!--keyboard--]'){value =''}" size=16 value="[!--keyboard--]"  name="keyboard[]"><INPUT class=but type=submit value=全站搜索 name=Submit></TD></TR>               </THEAD></TABLE></form>