How to add page "Contact us"/"Terms of usage" using a link in the footer but page's content to be in the main content(middle region)? This seems to be a very newbie question. This is what I want to do:

I 'd like to have a link of type "Terms of usage"/"contact us" in the footer, and when the user clicks on it, a page to be appeared in the main region. 
How that could be done? Is it possible? Because from what I 've already seen, the page appears in the same theme region with its parent menu.
Do not know the version your using., search for 'overlay' in modules there are many.

In Drupal 7. Grab the following for direction

http://drupal.org/project/admin_path

http://drupal.org/project/context_overlay