Pages individual auth level

Hi,


I just wonder, that if there's any good way to put a authentication level for each individual page in site (database related)?
example:
(navigation database; or what ever you wish to call it...)
root
- main (x)
- news (x)
- forum (2)
- control panel (1)
-- user settings (1)
-- page management (1)
-- forum management (1)
-- system settings (0)
(Memeber database)
x = guest
0 = Administrator
1 = Moderator
2 = User


All pages "settings" are retrieved from database. Everything else is hard-coded or dynamically coded (as database or user settings related).


Thank you. :)
...