Scrollbar help

So I am creating a history timeline and I have just a simple scroll bar at the bottom that you click and drag to move the movie clips that are part of the timeline. But I want to be able to just click within the track of the scroll bar so the timeline automatically moves to where you clicked. i also would like to have arrows so you can scroll that way instead of just dragging the scroll bar. Any help on this would be greatly appreciated. Thanks

steve.