This is Perl module FormValidator::Nested. INSTALLATION FormValidator::Nested installation is straightforward. If your CPAN shell is set up, you should just be able to do % cpan FormValidator::Nested Download it, unpack it, then build it as per the usual: % perl Makefile.PL % make && make test Then install it: % make install DOCUMENTATION FormValidator::Nested documentation is available as in POD. So you can do: % perldoc FormValidator::Nested to read the documentation online with your favorite pager. Masahiro Chiba