复选框筛选没有效果

<div class="search-list">

      <div class="fl search-tit">领域</div>

      <ul class="search-uls search-ul box-sizing" style="z-index: 30">

        <li class="unfold fr" style="">

          <p class="box-sizing"> <span class="unfold-font" data-disabled="0">更多</span>&nbsp;<span class="iconfont up-down icon-jiantouarrow483"></span> </p>

        </li>

        <li class="search-lis fl search-li w_ch" style=""><a class="{if !$params.jyfw}on{/if}" href="{dr_search_url($params, 'jyfw', NULL)}">不限</a></li>

        {php $field = dr_options_other('jyfw', $catid);} {loop $field $k $t}

        <li class="search-lis fl search-li " style=""><a href="{dr_search_url($params, 'jyfw', $k)}" class="{if $k==$params.jyfw || $t==$params.jyfw}on{/if}">{$t}</a></li>

        {/loop}

      </ul>

    </div>