jQuery(function($) {
    $(document).ready(function() {
        $('#config_label_format').change(function() {
            const formatSelect = $(this);
            const typeSelect = $('#config_label_type');

            if (formatSelect.val() != 'Pdf') {
                typeSelect.val('A6').prop('disabled', true);
                typeSelect.selectBox('update');
            } else {
                typeSelect.prop('disabled', false);
            }
        }).change();
    });
});