When I was learning the basics of Perl CGI (well, any CGI) I vaugely remember something regarding a header or command that would invoke CGI script (using a standard GET request) WITHOUT changing the page that a user was on.
Googling hasn't been fruitful, I only remember a brief mention, and maybe it wasn't exactly what I'm thinking...
I can get around it, but it'll involve editing more than one document >_< I guess (for more than one reason) that it'd be a good idea to edit those documents anyway.
But; does anyone know what this mystical line is? or if it even exists?