sub form {
    start_form;

    # This would be the first page they see when entering
    # the form for the first time, no param passed into 
    # the subroutine at this point, first time entry
    if (!param) {
        Ask user for URL (param('url'));
        Ask user for Title (param('title'));
        Next/Reset form buttons; 
    }

    # This would be the validation of the first form, which
    # is only shown when the elements in the first page
    # above are validated and completed
    if (param('url') && param('title') {
        validate input (only allow ftp, http, gopher)
        test that the URL is up (HEAD on url)
        retrieve Content-Type and Content-Length from url
            if (($url =~ /.pdf$/i) || ($url =~ /.doc$/i)) {
                if ($type =~ "pdf") {
                    # turn into pdf:// URI syntax
                    $url =~ s/^\w+/pdf/m;
                } elsif ($type =~ "doc") {
                    # turn into doc:// URI syntax
                    $url =~ s/^\w+/doc/m;
                }
        convert any spaces in 'title' to underscores
    }

    if (the first page was filled out and validated) {
        start_second_page_form
        Ask user for maxdepth to gather (param('maxdepth'))
        Ask user for heuristics on URL (param('ag'))
        Next/Back/Reset form buttons
    }

    # ...and so on
}