IWP - Multiple DBs, multiple web pages, how?

[KirkR]

FM9 Server Adv - IWP deployment. OS X 10.5.6

Multiple databases - each client has their own set of applications.

Multiple customer branded web pages.

Apache configured for VirtualHosts, one IP, branded web pages in separate directories, sub-domain access set up in hosts file.

Web page contains link to each clients set of databases. This works perfectly.

Problem comes when ....

1) cancel at login in iwp_auth.html

2) Scripted exit database

Both return to iwp_home.html - and not one that is unique to the customer, so they can never get back to their own set of databases without re-entering the subdomain URL

Replacing the Javascript in the header for top.location ?

How would this deal with multiple customer companies??

Any solutions??