variable issues in mod_perl again

I have currently have to sites working on my box. A live and development site.

Having got my scripts working in mod_perl for the development site, I want to move them over to the live site. I would also like a different version working for the development site.

However when I try this I find a little "cross fertilisation" of variables between the two versions of the script. As you can imagine this isn't something that I really want to happen!

So how do I ensure that this doesn't happen. I guess I have to change the package for each. What else? Do I have to reset the server at some point to ensure that things don't get mixed up?

cheers for any comments.