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 *   generate the same form (or very similar forms) using different $form_ids

 *   can implement hook_forms(), which maps different $form_id values to the

 *   proper form constructor function. Examples may be found in node_forms(),

 * @param ...

 *   Any additional arguments are passed on to the functions called by

 *   drupal_get_form(), including the unique form constructor function. For

    }

    if (isset($form_definition['callback'])) {

      $callback = $form_definition['callback'];

    }

    // In case $form_state['wrapper_callback'] is not defined already, we also

    // allow hook_forms() to define one.

  // the actual form builder function ($callback) expects. This allows for

  // pre-populating a form with common elements for certain forms, such as

  // back/next/save buttons in multi-step form wizards. See drupal_build_form().

    $form = call_user_func_array($form_state['wrapper_callback'], $args);

    // Put the prepopulated $form into $args.

    $args[0] = $form;

 *   for this element. Return nothing to use the default.

 */

function form_type_textarea_value($element, $input = FALSE) {

    // This should be a string, but allow other scalars since they might be

    // valid input in programmatic form submissions.

    return is_scalar($input) ? (string) $input : '';

function password_confirm_validate($element, &$element_state) {

  $pass1 = trim($element['pass1']['#value']);

  $pass2 = trim($element['pass2']['#value']);

    if (strcmp($pass1, $pass2)) {

      form_error($element, t('The specified passwords do not match.'));

    }

            '#return_value' => $key,

            '#default_value' => isset($value[$key]) ? $key : NULL,

            '#attributes' => $element['#attributes'],

          );

        }

        else {