function login() {
    if (!validate()) return;
 
    var name = $.trim($("#txtName").val());
    var pass = $.trim($("#txtPw").val());
    var code = $.trim($("#txtCode").val());
    var rname = $("#rname").attr("checked");
    var rpass = $("#rpass").attr("checked");

    $.ajax({
        type: "get",
        url: "Page/Main/login.ashx",
        data: "name=" + name + "&pass=" + pass + "&code=" + code + "&rname=" + rname + "&rpass=" + rpass,
        async: false,
        success: BackMsg,
        error: function(err) {
            alert("错误:"+err);
        }
    });
}

function BackMsg(msg) {
    if (msg.length > 0) {
        if (msg == "0") {
            editpwd();
        }
        else {
            alert(msg);
        }
        again();
    }
    else {
        var name = $.trim($("#txtName").val());
        window.location.href = 'Page/main/index.aspx';
    }
}

function validate() {
    var message = "";
    $.each({ txtName: "登录账号", txtPw: "有效口令", txtCode: "验证码" },
    function(i, n) {
        var text = $.trim($("#" + i).val());
        if (text.length == 0) {
            message = message + "[" + n + "]";
        }
    });

    if (message.length > 0) {
        alert(message + "不允许为空！");
        return false;
    }
    return true;
}

function again() {
    document.all.imgVerify.src = document.all.imgVerify.src+"?";
}

function ctlent() {
    if (window.event.keyCode == 13) { login(); }        //跨浏览器
}