$.post(

     url,

     function(data){

         if(data.retcode == "0"){

             alert(data.retmsg);

         }else{

             alert(data.retmsg);

         }

     }

 ); 

 $(function(){

     $("#btn").click(function(){

         var url = "/ytz/tb/issueTender.action";

         var options = {

             url : url,

             success : callback,

             type : 'post',

             dataType : 'json'

         };

         $("#myForm").ajaxSubmit(options);

     });

     function callback(data) {

     if (data.retcode == "0") {

         alert(data.retmsg);

         //window.location.href = "/ytz/";

     }

     }

 }) ;   

 $.ajax({

     type:"GET",                      //请求类型

     url:path+"/delete.do",           //URL

     data:{uid:obj.attr("userid")},   //传递的参数

     dataType:"json",                 //返回的数据类型

     success:function(data){          //data就是返回的json类型的数据

         if(data.mess == "true"){

             alert("删除成功");

             obj.parents("tr").remove();

         }else if(data.mess == "false"){

            alert("对不起, "+obj.attr("username")+" 用户删除失败");

         }else if(data.mess == "noex"){

             alert("对不起,用户 "+obj.attr("username")+" 不存在");

         }

     },

     error:function(data){

         alert("删除失败");

     }

 });