jquery 共用修改和提交事件

$(function(){//共用提交和修改按鈕事件    var url = window.location.search;    if (url.indexOf("id") > 0) {        var action = url.split("=")[2];        $("input[class='a_btn_blue']:last").attr("id", "btnAlter_" + action).attr("value", "修 改");    }    else {        var action = url.split("=")[1];        $("input[class='a_btn_blue']:last").attr("id", "btnSumit_" + action).attr("value", "提 交");    }})

提交時地址為：http://localhost:6464/EnterInfo/OrderInfo.aspx?action=tjdd
修改時地址為：http://localhost:6464/EnterInfo/OrderInfo.aspx?id=14&action=tjdd

按鈕：<input  runat="server" type="button" class="a_btn_blue" style=" cursor:pointer; margin-left: 25px;" onfocus="this.blur()"/>

提交按鈕ID：btnSumit_tjdd

修改按鈕ID：btnAlter_tjdd