Image Viewer--Change Position Dynamically

[Bunk]

I implemented the CSS Popup Image Viewer at
http://www.dynamicdrive.com/style/csslibrary/item/css-popup-image-viewer/

When I compared its function to the thumbnail viewer at

http://www.pfaltzgraff.com/on/demandware.store/Sites-Pfaltzgraff-Site/default/Search-ShowCategories?cgid=patterns

in their section "Our Top Five Patterns" dishes;
I found that when I do a mouseover the thumbnails from left to right, their images displayed in a standard x, y position, but when I hovered over thumbnails close to the right side of the page their displayed images changed x, y positions to keep from being displayed off the right side of the page.

How can I implement their automated position feature?
Thanks,
Bunk

[Nile]

http://www.dynamicdrive.com/dynamicindex5/stickytooltip.htm

[Bunk]

http://www.dynamicdrive.com/dynamicindex5/stickytooltip.htm
Your example is not what I'm seeing on the Pfaltzgraff site.

I appreciate your response.

Thanks,

Bunk