my @divs = $pf_mech->xpath('//div[@class="col-superbill-id"]');
my $len = scalar @divs;
print "$len\n";
sleep(1);

$pf_mech->click(xpath => '//div[@class="col-superbill-id"]', synchronize => 0 );

##</code><code>##

$pf_mech->click(shift(@divs), synchronize => 0 );