var game = (function () {

    // Global vars
  var canvas,
            canvasCtx;
            // And so on...

    // Private methods
    function loop() {
        update();
        draw();
    }

    function update() {
    }

    function draw() {
        ctx.drawImage(buffer, 0, 0);
  }

    function init() {
        // Marvelous code...
    }


    // Public Methods
    return {
        init: init
    }
})();