How to make part of an image a link

[beginner_83]

Hi All

I was wondering if anyone can advise me on how to make part of an image into a link. I just need small parts of it to be clickable.
To create my website I am using dreamweaver, photoshop, html, css, and php.

Any help is greatly appreciated. :)

[Charles]

http://www.w3.org/TR/html4/struct/objects.html#h-13.6