I used a javascript plugin called autodivscroll.js (all javascript) download it here http://scripterlative.com/files/autodivscroll.htm. So what you would need to do is add the script tag in the code view in the header.
1) <script type="text/javascript" src="autodivscroll.js"></script>
2) Make sure the autodivscroll.js file is in the same folder as your working files.
3)Created your div that has the scrollable content (make sure it has overflow:scroll) give it a unique <div id="scrollingISI">.... </div>
4) go to design view and add an event by right clicking on the top most timeline (Events) and give it a name like Initialize scrolling. You can set this to be at the very beginning or in the middle. This will start your scrolling ISI.
5) Double Click on the little Event tag you created on the timeline > Custom > add custom action > give it a name (i.e., startAutoScroll ) and paste the initializer function: new AutoDivScroll("ID OF YOUR SCROLLING ISI");
You should be all set!