use CGI qw( -utf8 );
use List::MoreUtils qw( uniq );
-use C4::Auth;
-use C4::Output;
-use C4::CourseReserves qw(GetItemCourseReservesInfo DelCourseReserve GetCourseItem);
+use C4::Auth qw( get_template_and_user );
+use C4::Output qw( output_html_with_http_headers );
+use C4::CourseReserves qw( GetCourse GetCourseItem GetItemCourseReservesInfo DelCourse DelCourseReserve );
use Koha::Items;
-my $cgi = new CGI;
+my $cgi = CGI->new;
my $action = $cgi->param('action') || q{};
my $barcodes = $cgi->param('barcodes') || q{};