Need Scroller with both autoplay and manual scrolling funtionality

I am looking for a scroller which auto scrolls to the end and stops and switches to manual navigation. I tried googling, there are thousands of scrollers but i need one with both autoplay and manual scroll funtionality. Where user can also switch to manual scroll with a single click while it is auto scrolling. something like this

http://aspsnippets.com/demos/424/ But it must auto scroll and switch to manual scroll once user clicks on it or if the scroll has reached the end. I dont want it to slide i want it to scroll. With constant speed and without jerks. Thanks in advance.