Password protect page (inside page)

My problem is that I need to add password protection to a series of pages, but each page has it's own password.

I've seen great solutions using an external page or connecting to a Database.

The first option seems complicated, because I need each page to have it's own password. I found this great solution, but it forces me to create a login system for each page: http://support.microsoft.com/kb/301464/en-us

The second option (connect to a database) isn't at all viable because the way they've set up our system, I can't use databases :P (All a question of security)

So what i need to know is if there is a way to use 1 login page for multiple pages, but have a password for each individual page.

I've managed to create a solution like this for form handling is it possible for passwords?