#!/usr/bin/perl
-#wrriten 11/1/2000 by chris@katipo.oc.nz
+#written 11/1/2000 by chris@katipo.oc.nz
#script to display borrowers account details
# Suite 330, Boston, MA 02111-1307 USA
use strict;
+use warnings;
+
use C4::Auth;
use C4::Output;
use CGI;
my $barcode=$input->param('barcode');
my $itemnum = GetItemnumberFromBarcode($barcode) if $barcode;
my $desc=$input->param('desc');
- my $amount=$input->param('amount');
+ my $amount=$input->param('amount') || 0;
$amount = -$amount;
my $type=$input->param('type');
manualinvoice($borrowernumber,$itemnum,$desc,$type,$amount);