[newbie] VirtualHost

[Mark]

I'm looking for a sample/example for my httpd.conf file for virtual hosts.
I messed one up, and it stopped my whole website from opertating 'till I
commented it out! Oops.
I'm setting it up so my friends can have there website be at
theirname.mydomain.com and all their files be located in /home/theirname/www
Can anyone help me out?

Thanks
Mark