XML image scroller...help

In summary, I have an image scroller that loads a series of thumbnails defined in an XML file. All of the image load and begin scrolling. When I rollover the scroller, the scrolling stops then resumes again when I roll out.

My problem: In addition to a mouseover pausing the scroller, I would like to be able to load text from another XML node based on which thumbnail the mouse is currently over.

My question: How do I keep track of which thumbnail the mouse is over? Do I need to create an additional array to keep track of the thumbs or is there a simpler way to do this?

I apologize if I’m not being clear but I’d appreciate any help that I can get

Thank you