var Test = (function() {
    return {
        useSub: function () {
            this.Sub.sayHi();
        },

        init: function () {
            $(document).ready(this.useSub);
        }
    };
})();

Test.Sub = (function () {
    return {
        sayHi: function () {
            alert('hi');
        }
    };
})();

Test.useSub(); // works
Test.init(); // explodes

Above I am trying to create a Test namespace and add an object Sub to it. I was doing fine until I tried using the object in jQuery. The error is "Uncaught TypeError: Cannot call method 'sayHi' of undefined". If there is a better way to do this, I am open to it.