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