function jsAjax() {            var Con;            var XmlRequset;            var AjaxContent; //返回内容            if (window.XMLHttpRequest) {                //判断浏览器是否支持XMLHttpRequest类 ie6以上支持                XmlRequset = new XMLHttpRequest();            } else {                //不支持调用 使用 ActiveXObject类 ie6和ie5                XmlRequset = new ActiveXObject("Microseft.XMLHTTP");            }                        XmlRequset.open("POST", "index.aspx/GetAjax", false); //调取方法            XmlRequset.onreadystatechange = function () {                if (XmlRequset.readyState == 4 && XmlRequset.status == 200) {                    //readystate 返回 0: 请求未初始化 1: 服务器连接已建立 2: 请求已接收 3: 请求处理中 4: 请求已完成，且响应已就绪                    //status 返回 200: "OK" 404: 未找到页面                     Con=XmlRequset.responseText;                    AjaxContent = XmlRequset.responseText; //读取返回值                     document.getElementById(‘test‘).innerHTML = AjaxContent;                }            }            XmlRequset.setRequestHeader(‘Content-Type‘, ‘application/json; charset=utf-8‘);            XmlRequset.setRequestHeader(‘SOAPAction‘, "GetAjax");            XmlRequset.send();            return Con;        }        function jsAjax() {            var Con = "";            $.ajax({                type: "post",                contentType: "application/json",                url: "index.aspx/GetAjax",                data: "",                dataType:"json",                async: false,                success: function (resfe) {                     Con = resfe.d;                }            })            return Con;        }