jquery批量控制form禁用的代码

<script type="text/javascript" src="jquery-1.8.2.min.js"></script>  
 <script type="text/javascript">  
 $(document).ready(function(){  
     $(".ddd input").attr("disabled","disabled");  
     $(".ddd select").attr("disabled","disabled");  
 });   </script>  
 <div class="ddd">  
 <input type="text" disabled>  
 <input type="text">  
 <input type="text">  
 <input type="text">  
 <select name="ddlsex" id="ddlsex" runat="server">  
               <option value="">--请选择--</option>  
               <option value="m" selected="selected">男</option>  
               <option value="f">女</option>  
             </select>  
 </div>