function userLoginSystem(callback) {
    var password = $("#guestPassword").val();
    $("#guestEncryptPassword").val(encrypt(password));
    var action = _contextpath + "/guest/login.action";
    if (window.location.href.indexOf("https") >= 0) {
        action = caserver;
    }
    $.ajax({
        type: "POST",
        url:  action,
        data: $("#guestLoginFrm").serialize(),
        success: function(data) {
            callback(data);
        },
        dataType: "html",
        async: false
    });
}