Thumbnail Gallery: Rollover instead of Release?

Hello!

Is it possible to make this thumbnail gallery work, so the user can roll-over to change the main image instead of clicking on it?

This is the tutorial I’m working with, the thumbnail/xml

http://www.kirupa.com/developer/mx2004/thumbnails.htm

I couldn’t figure out the right combination in the actionscript.

thanks for your help!

md