my $itemtype = &GetFrameworkCode($biblionumber);
my $tagslib = &GetMarcStructure( 0, $itemtype );
my $biblio = GetBiblioData($biblionumber);
+$biblionumber = $biblio->{biblionumber};
my $record = GetMarcBiblio($biblionumber, 1);
if ( ! $record ) {
print $query->redirect("/cgi-bin/koha/errors/404.pl");