text: var Container = require('./Container');
  var GameObjectFactory = require('../GameObjectFactory');
  
  //  When registering a factory function 'this' refers to the GameObjectFactory context.
  //  
  //  There are several properties available to use:
  //  
  //  this.scene - a reference to the Scene that owns the GameObjectFactory
  //  this.displayList - a reference to the Display List the Scene owns
  //  this.updateList - a reference to the Update List the Scene owns
  
  GameObjectFactory.register('container', function (x, y)
  {
      var container = new Container(this.scene, x, y);
  
      // this.displayList.add(container);
      this.updateList.add(container);
  
      return container;
  });
  