How to get php to show only domain name?

[grakker]

squirrelmail and phpwiki both want to use my hostname.domainname.com in the URL of the browser. For example, if I log onto squirrelmail, instead of looking like this:

http://www.bar.com/mail/src/login.php

it looks like this:

http://foo.bar.com/mail/src/login.php

Not earth shattering, but pissing me off. I've used the gallery php program for displaying pictures on my site and it doesn't do this, so I'm thinking it's just an application thing. I've tried to look at the source, but I don't know php at all. Looks pretty easy to pick up, but if someone could tell me if I'm missing some config in my commonapache.conf or somewhere I'd REALLY appreciate it.

[grakker]

Might as well continue my habit on here of answering my own question after a little while. I had forgotten to set ServerName to www.bar.com in my /etc/apache/conf/apache.conf. Works just like I expect now.