Adding a search box for a specific forum

[Dominic]

Cant think on how to add a search box to search just a specific forum instead of the whole forum. any ideas? and no i dont want to javascript one, i just want a regular search box.

[Shazz]

Like what invision forums have on the bottom of theres?
Kinda like:
http://img137.imageshack.us/img137/2020/tutorialke7.gif


Accept a speical search box already for that forum?
That would be nice :D
I Would like to see this done as well -.-