for my $shelf (@{ $shelflist }) {
push(@shelvesloop, $shelf->{shelfnumber});
$shelvesloop{$shelf->{shelfnumber}} = $shelf->{shelfname};
for my $shelf (@{ $shelflist }) {
push(@shelvesloop, $shelf->{shelfnumber});
$shelvesloop{$shelf->{shelfnumber}} = $shelf->{shelfname};