i like both these scripts, but with the Image w/ description tooltip can I use a image to rollover instead of a link, or with the Image Thumbnail Viewer is there a way to make the popup show up on a rollover?

Image w/ description tooltip
http://www.dynamicdrive.com/dynamici...agetooltip.htm

Image Thumbnail Viewer
http://www.dynamicdrive.com/dynamicindex4/thumbnail.htm

thank you