Hi all

I have a page with a top half and a bottom half.  Top half has an image map.
A rectangle with vertical slices.  Each slice being its own hot spot.

On the bottom half I have a row of images.  Each image in the row is
associated with one of the slice hot spots in the image map above.

What I am trying to figure out is the best way to put some sort of "focus"
on the image in the bottom half whenever the user scrolls across the
associated hot spot in the top half.  I would like the focus to be nothing
more than a bounding box that is highlighted when the user hits the hot spot
associated with that image.

I know I've seen this before, but as fate would have it, when I dig into it
I come up empty.

ideas???
JB