drupal api

Hali!

Egy kerdes:

value
Description: A form value that is internal to the form and never displayed to the screen.
Properties: #type, #value
Usage example (node.module):
<?php
$form['vid] = array('#type' => 'value', '#value' => $node->vid);
?>

Akkor kire jo az az adott form-ban?
Nem tudok rejonni sehogy sem!
koszi!