Need search script help

[PornHustler]

I am looking for a simple script to add to one of my sites that will allow a users to search not only the main domain but also a sub domain(i.e. example.com and blog.example.com)

Thanks

[fatfoo]

That would be a useful script. It is kind of like the search function on GFY, isn't it. I think GFY does not have sub domains, though.