Embedded image USEMAPs make me feel old. I remember when you couldn't even reliably support them in all web browsers. For each clickable image map you also needed a GET/POST form 'CGI' program that was passed only relative image coordinates of the click and had to decode it server side.

Wow. How did you find it? Thanks for sharing the tip.

Repeatedly hit the Tab key. It's likely you'll see 'o' link getting outlined.