How do i disable the function keys in linux fedora core 2?

Hi can anyone help me to disable the function keys (or assign them to something like space) its for a kiosk which boots straight into firefox, and i want as few keys (out side the letters, and alt control and backspace) to work. Ie no help on F1, etc.
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uuccuAuthor Commented:
For anyone else interested, I have found a great way to disable keys in firefox (which is what I wanted anyway). It comes in the form of a firefox extension .xpi which is basically an add on for Mozilla products. Its called keyconfig find it here...

 You can install it directly from the site if you go to the site using firefox and click on install. Alternatively you can download the xpi file seperately and open it in the firefox browser.

It allows you to disable or set new combinations of keys for use in firefox or thunderbird.
Hope this might be useful to someone
Also for a web kiosk check out these extensions for firefox...
This isnt an xpi but is very useful for manually customising your firefox, I used it to get rid of contect menus and the main menu lbar and have only the buttons i wanted.
This xpi allows you to call full screen mode from the command line. Coupled with the keyconfig the user cannot get out of full screen.

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