If your pages don't require JavaScript you could use the WWW::Mechanize module to interact with the page (see WWW::Mechanize::Examples and WWW::Mechanize::FAQ). If you do want to automate Firefox or IE use WWW::Mechanize::Firefox or Win32::IE::Mechanize respectively.

If you are familiar with the Selenium suite of tools see Using WWW::Selenium To Test Or Automate An Ajax Website from the tutorials section of this site, which also contains tutorials for Installing Modules should you need help with that.