Simple Invoices - Forum

I want to use a different database for user authentication instead of the SimpleInvoices database. In this manner I want to share the usernames and passwords with other applications. Hence, I only want to change the databasename when executing the user authentication functions.

Which files do I have to alter to realise this? A seperate config.ini file with the "username table" is not necessary. Hardcoding the database in the php files is sufficient.

Any thoughts?

Thanks in advance!

DB