my $oecd = URI->new('http://cs3-hq.oecd.org/scripts/hpv/DetailProduit_Contenu.asp?CASNUM='."$_");
	$mech->get($oecd);
	#$mech->follow_link(url_regex => qr/\.pdf/);
	#my $url = $mech->find_link(text_regex => qr/\.pdf/);
	my @links = $mech->find_all_links();
	for(@links)
	{
		print $_->url(), "\n";
		print $_->text(), "\n";	
	}