# Suite 330, Boston, MA 02111-1307 USA
use strict;
+use warnings;
+
use C4::Context;
use C4::Output;
use CGI;
use Date::Calc qw/Today Add_Delta_YM/;
my $input = new CGI;
-my $order = $input->param('order');
+my $order = $input->param('order') || '';
my $startdate = $input->param('from');
my $enddate = $input->param('to');
my $ratio = $input->param('ratio');