Editing the footer through the WP Admin

Hi,

I’d like to know whether it’s possible for the footer section of a theme to be editable through the administration panel?

Changing the footer usually entails getting the theme’s footer.php file and editing the content there, but my client wants to be able to edit the footer’s content easily through the admin panel, so that he won’t have to come back to in order to edit small things here and there.

Is there a plug-in or hack of some sort that enables the user to do this easily?

It doesn’t have to be specifically the footer – what would be perfect would be if you could insert a bit of code into one of the theme files (say the header) once, and then the user can edit what appears there in the admin panel.

If this isn’t possible, is there a bit of PHP code that calls for a certain page and inserts it into the footer section automatically? Then the user can edit it as if it were a page, but it’s in the footer section.

I do hope I’m making myself clear, haha. Tom.