1.获取原有单选框的值
var value=$("input[name='is_setting']:checked").val();
2.获取重选后的单选框的值
<tr> <td>使用首末场设置:</td> <td> <input type="radio" name="is_setting" value="1" <{if $activity.is_setting eq "1"}> checked <{/if}> onchange="readonly($(this))" >是<br> <input type="radio" name="is_setting" value="2" <{if $activity.is_setting eq "2"}> checked <{/if}> onchange="readonly($(this))" >否 </td> </tr>
function readonly(obj){ var value = obj.val(); }