hlm_pl_mall/app/home/view/default/seller/sellerorder/cancel.html

<div class="eject_con">
  <div id="warning"></div>
  <form method="post" id="order_cancel_form" action="{:url('Sellerorder/change_state',['state_type'=>'order_cancel','order_id'=>$order_info.order_id])}">
    <dl>
      <dt>{$Think.lang.store_order_order_sn}{$Think.lang.ds_colon}</dt>
      <dd><span class="num">{$Request.param.order_sn}</span></dd>
    </dl>
    <dl>
      <dt>{$Think.lang.store_order_cancel_reason}{$Think.lang.ds_colon}</dt>
      <dd>
        <ul class="checked">
          <li>
            <input type="radio" checked name="state_info" id="d1" value="{$Think.lang.store_order_lose_goods}" />
            <label for="d1">{$Think.lang.store_order_lose_goods}</label>
          </li>
          <li>
            <input type="radio" name="state_info" id="d2" value="{$Think.lang.store_order_invalid_order}" />
            <label for="d2">{$Think.lang.store_order_invalid_order}</label>
          </li>
          <li>
            <input type="radio" name="state_info" id="d3" value="{$Think.lang.store_order_buy_apply}" />
            <label for="d3">{$Think.lang.store_order_buy_apply}</label>
          </li>
          <li>
            <input type="radio" name="state_info" flag="other_reason" id="d4" value="" />
            <label for="d4">{$Think.lang.store_order_other_reason}</label>
          </li>
          <li id="other_reason" style="display:none; height:80px;">
            <textarea name="state_info1" rows="2"  id="other_reason_input" style="width:200px;"></textarea>
          </li>
        </ul>
      </dd>
    </dl>
    <dl class="bottom">
      <dt>&nbsp;</dt>
      <dd>
        <input type="submit" class="submit" id="confirm_button" value="{$Think.lang.ds_ok}" />
      </dd>
    </dl>
  </form>
</div>
<script type="text/javascript">
    $(document).ready(function(){
        $('#order_cancel_form').validate({
            submitHandler:function(form){
                ds_ajaxpost('order_cancel_form');
            }
        });
    });

    $(function(){
        $('#cancel_button').click(function(){
            DialogManager.close('seller_order_cancel_order');
         });
       $("input[name='state_info']").click(function(){
        if ($(this).attr('flag') == 'other_reason')
        {
            $('#other_reason').show();
        }
        else
        {
            $('#other_reason').hide();
        }
    });
});
</script>