Auto Form Filling

[Bob_H]

I'd like to be able to automatically login to different HTML sites, fill in
various form data including a .jpg or two and a couple of paragraphs of
text. The purpose is to update/refresh a listing. No data need be returned
to the browser.

Any suggestions on the best way to go about this? The ready made programs I've
found don't seem to fit the bill. I don't think this can be done in
JavaScript. How about CGI? PERL?

If this is better handled in another forum I'm open to your input on that as
well?

Thanks for your suggestions.