Looping A Horizontally Scrolling List Of Images

Using Scriptaculous, I've got a horizontally scrolling list of images that works almost exactly how I want it to - except the images don't loop. If you scroll left at the beginning or right past the end of the list, you just get empty space:

[URL]

Code:

<div id="arrow_left"><a href="#" id="move_demo" onclick="new Effect.Move('logos', { x: 170, y: 0 }); return false;"><img src="_images/arrow_left.png" width="40" height="155" id="left_arrow"></a></div>

[Code]....

Is there a way to automatically reorder the list to create an infinite loop of the logos?