We should check the Wayback Machine, but in my memory this was built with an image map. Maybe like, 10 years ago or something. I was googling around when writing this post and saw that there are folks still tasked with making sure it's up and running. I wonder if they migrated it to tables at some point in the last decade.

The January 1997 version used a server-side image map served via CGI: https://web.archive.org/web/19970124032137/http://spacejam.c...

This was soon moved to a static table layout with higher quality images: https://web.archive.org/web/19970412180040/http://www.spacej...