下拉列表框 select 动态赋值

<tr>
        <td class="label">所属群组:</td>
        <td>
          <select name="group" dataType="Require" msg="请选择群组">
            {foreach from=$arrgroups item=group}
              <option value="{$group.car_group_id}" {if $group.car_group_id eq $car.group}selected{/if} >{$group.car_group_name}</option>
            {/foreach}
          </select>   
        </td>
</tr>