function ExchangeLogin() {        vstrServer='<%=LocationUrl %>'        vstrDomain = '<%=userLogin.AD %>'        vstrUsername = document.getElementById("<%=UserNameTxt.ClientID%>").value;        vstrPassword = document.getElementById("<%=PassWordTxt.ClientID%>").value;        if (vstrUsername == "" || vstrPassword == "")        { alert("用户名密码不能为空!"); return; }        var strUrl = "https://" + vstrServer + "/owa/auth/owaauth.dll";        var strExchange = { destination: 'https://' + vstrServer + '/owa',            flags: '0', forcedownlevel: '0',            trusted: '0', isutf8: '1', username: vstrUsername, password: vstrPassword        };        var myForm = document.createElement("form");        myForm.method = "post";        myForm.action = strUrl;        for (var varElement in strExchange) {            var myInput = document.createElement("input");            myInput.setAttribute("name", varElement);            myInput.setAttribute("value", strExchange[varElement]);            myForm.appendChild(myInput);        }        document.body.appendChild(myForm);        myForm.submit();        document.body.removeChild(myForm);    }