# You should have received a copy of the GNU General Public License
# along with Koha; if not, see <http://www.gnu.org/licenses>.
-use strict;
-use warnings;
-use C4::Templates;
+use Modern::Perl;
use CGI qw ( -utf8 );
+use C4::Templates;
+use Koha::Util::Navigation;
-my $query = new CGI;
+my $query = new CGI;
my $language = $query->param('language');
-my $url = $query->referer() || '/';
-
-# warn "Language : $query // $language // $url";
-
-# If language was set by an external URL the parameter
-# 'language=' should be removed from url string, otherwise
-# the language picker will not work
-$url =~ s|(.)language=[\w-]*&?|$1|;
-$url =~ s|(&\|\?)$||; # Remove extraneous ? or &
+my $url = Koha::Util::Navigation::local_referer($query, { remove_language => 1 });
C4::Templates::setlanguagecookie( $query, $language, $url );