Scrolling down and ajax update view like draw something

Like draw something, we can view a list of games awaiting our action as we scroll down and it will ajax add more results at the bottom, how can i achieve this?

If you want the effect only you can try to create the list of the results but only a few of them appear on the layout, and as the player scrolls down you move the objects in and out of the layout.

But if you want the game to update the list every time it hits the bottom you will need to plan the function that updates the game to be called every time the last object hits a certain Y position.