谁能帮我看看为什么我的jQuery ajax数据提交不过去

<script type="text/javascript">

    function cheshi(id) {

        $.ajax({

            type: "POST",

            url: "/tools/admin_ajax.ashx?action=cheshi",

            data: { id:id },

            dataType: "json",

            beforeSend: function (XMLHttpRequest) {

                //发送前动作

            },

            success: function (data, textStatus) {

                $("#div1").text(data.word_ename);

            },

            error: function (XMLHttpRequest, textStatus, errorThrown) {

                $("#div1").text("错误");

            } 

            

        });

    }





</script>

<div id="div1">123</div>

  <img alt="" src="../../images/msg.png"  onclick="cheshi(2)"/>

 case "cheshi": //

                    cheshi(context);

                    break;

 private void cheshi(HttpContext context)

        {

            int id = DTRequest.GetFormInt("id");

            

            BLL.word bl=new BLL.word();

            Model.Word wo=new Model.Word();

            wo = bl.GetGoodsModel(id);

            context.Response.Write("{\"word_ename\":" + wo.word_ename + ", \"word_cname\":" + wo.word_cname + "}");

            return;

        }

    通过点击页面上的img标签，把id提交到.ashx里查询到一条记录，把查询的记录返回到html页面并覆盖到div里。现在我点img标签标签一点反应也没有。求大家帮我改改，初学jQuery很多问题都不明白