if ( $link_id ) : ?>
<input type="hidden" name="action" value="save" />
<input type="hidden" name="link_id" value="<?php echo (int) $link_id; ?>" />
-<input type="hidden" name="order_by" value="<?php echo esc_attr($order_by); ?>" />
<input type="hidden" name="cat_id" value="<?php echo (int) $cat_id ?>" />
<?php else: ?>
<input type="hidden" name="action" value="add" />