function Login() {
    var IsComplete = { UserEmail: false, Pwd: false };
    var var1 = $("txtUserName").value.Trim();
    var var2 = $("txtPwd").value.Trim();

    var obj1 = $("txtUserNameMsg");
    var obj2 = $("txtPwdMsg");
    var obj3 = $("txtLoginMsg");
    var obj4 = $("btnSubmit");

    Msg(obj3, "", false);

    if (var1.IsNullOrEmpty()) {
        Msg(obj1, "Email address is required.", true);
        IsComplete.UserEmail = false;
    }
    else {
        Msg(obj1, "", false);
        IsComplete.UserEmail = true;
    }

    if (var2.IsNullOrEmpty()) {
        Msg(obj2, "Password is required.", true);
        IsComplete.Pwd = false;
    }
    else {
        Msg(obj2, "", false);
        IsComplete.Pwd = true;
    }

    if (IsComplete.UserEmail && IsComplete.Pwd) {
        obj4.disabled = "disabled";
    }
    else
        return false;
}
addDomLoad(function() {
    Public.Response.setCookie('isCookie', 1);
    if (Public.Response.getCookie('isCookie') == null) $('cookieErr').style.display = 'block';
});