=head1 NAME

  Kwiki::Scode - Saves you from Wiki spammer.

=head1 INSTALLATION

To use this plugin, you need to add this B<TWO> lines into
your C<plugins> file:

    Kwiki::Scode
    Kwiki::Edit::Score

And remove C<Kwiki::Edit> from that file.  C<Kwiki::Edit::Score> take
places of C<Kwiki::Edit>, and only update page content when captcha
code is verified correct.

=head1 DESCRIPTION

Scode (or Captcha) is a facility to prevent web spammers from posting
abusing content to your website. Anyone who wants to edit wiki page
are now required to input a verification code from an image. Thus make
any spam-bot difficult to reconized that verifcation code.

This plugin make use most of C<MT::Scode> plugin code, and adapt to
C<Kwiki::Edit>, so it can help you if your site is suffered from
annoeying wiki spammers.

=head1 CREDITS

C<MT::Scode> Copyright (c) 2003, James Seng. (http://james.seng.cc/)

=head1 SEE ALSO

MT::Scode at http://james.seng.cc/archives/000145.html

For explanation of B<Captcha>, http://en.wikipedia.org/wiki/Captcha

=head1 COPYRIGHT

Copyright 2004 by Kang-min Liu <gugod@gugod.org>.

This program is free software; you can redistribute it and/or modify
it under the same terms as Perl itself.

See <http://www.perl.com/perl/misc/Artistic.html>