<form action="http://rs208.rapidshare.com/files/47486343/PowerOptions.pdf" method="post">
<input type="submit" name="dl.start" value="PREMIUM"></td><td align="center"><input type="submit" name="dl.start" value="Free">

#!/usr/bin/perl -w
use strict;
use diagnostics;
use Data::Dumper;
use WWW::Mechanize;

my $mech = WWW::Mechanize->new;
$mech->add_header( 'accept-language' => 'de');
$mech->get('http://www.rapidshare.com/files/47486343/PowerOptions.pdf');


$mech->click_button( name => "dl.start",
                     value => "Free"
);

print $mech->content;