Scraping Javascript page using perl

Bpl has asked for the wisdom of the Perl Monks concerning the following question:

Hi Monkers, Actually I am trying to scrape the Javascript code of an Italian website, I am able to scrape the normal HTML code through the classical

$lwp->get( $site );
[download]

But I cannot scrape the DOM code created by Javascript (or Ajax), any helps??

I have already tried with the "get" function of WWW::Mechanize::PhantomJS but it doesn't work.

the site is: http://operedigitali.lincei.it/rendicontiFMN/cliccami.htm under the voice of "volumi"

Thanks in advance.