/*
         * Save linked taxonomies for a sinle field
         */
        function save_taxonomy_field( &$field, $entry, $taxonomy ) {
            if ( array_key_exists( 'type', $field ) && $field['type'] == 'checkbox' ) {
                $term_ids = array();
                foreach ( $field['inputs'] as $input ) {
                    $term_id = (int) $entry[ (string) $input['id'] ];
                    if ( $term_id > 0 )
                        $term_ids[] = $term_id;
                }
                if ( !empty ( $term_ids ))
                    wp_set_object_terms( $entry['post_id'], $term_ids, $taxonomy, true );
            } else if ( array_key_exists( 'type', $field ) &&
              ($field['type'] == 'text' || $field['type'] == 'multiselect') ) {
              $terms = $entry[$field['id']];
              if ( !empty($terms) )
                wp_set_post_terms( $entry['post_id'], $terms, $taxonomy );
            } else {
                $term_id = (int) $entry[$field['id']];
                if ( $term_id > 0 )
                    wp_set_object_terms( $entry['post_id'], $term_id, $taxonomy, true );
            }
        }