... embperl? ... this code runs in the server side, like php, or a simple perl-cgi ... and ramigi whas asking for a 'client-side' perl interpreter included in the web browser; like javascript, vbscript (on the iexplorer) or others.

I'm affraid that the solution is to install a plugin to support this web-browser-perlish comprehension(like the activeperl's one, mentioned by Corion) ...

Maybe we must propose to the mozilla-firefox guys to give developpers a way to give this support ... it would be funny to program client-side perl scripts managing the obscure DOM as you want ...
... i imagine thinks like this:

<script language='perl'>
use Dumpvalue;
my $dump = new Dumpvalue;

$dump->dumpValue(\@document); #prints the DOM :-P
</script>
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To expand on turo's post, HTML::Embperl is a server-side tool for mixing Perl and HTML, although it's more like PHP than JavaScript. See also the Embperl home page. I use it extensively and it makes transaction-oriented web systems really easy. I also wish there were a replacement for javascript, but, well, somebody's going to have to write one. :) I just embed JS calls and code in the Embperl header files and the main HTML file when I need to do browser-side validation and such.

Don Wilde
"There's more than one level to any answer."