This is a quick post, dedicated to my collage, to help him getting better with Drupal.

I always enjoy Drupal Form API with the standard output, easy to use, and easy for extension. But sometime, due to special reason, you only want to display the form input itself, no wrapper div or label. In Drupal 7, it can be as simple as changing a boolean value, but for Drupal 6 it's a big trick. And here is the trick.