# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU General Public License for more details.
#
-# You should have received a copy of the GNU General Public License along with
-# Koha; if not, write to the Free Software Foundation, Inc., 59 Temple Place,
-# Suite 330, Boston, MA 02111-1307 USA
+# You should have received a copy of the GNU General Public License along
+# with Koha; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 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');