Using cPanel account login+pass in external PHP?

[Eibwen]

Helo,

I tried to find an answer/examples to this but didn't find any.

My problem is that I have my own site with discussion board to my users, and I would like to have there same account names and passwords as they have already in cPanel

How it is possible to integrate cPanel account login+password matching in my own separate site?

Any examples for this kind of PHP script to query cPanel accounts, find if the account user gives does exist, and then checks that the user given password matches the cPanel accounts password?

Thanks in Advance,

Eibwen