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      // Set a flag to indicate that the form has been processed and executed.

  $value = array('pass1' => '', 'pass2' => '');

  // Throw out all invalid array keys; we only allow pass1 and pass2.

  foreach ($value as $allowed_key => $default) {

    // These should be strings, but allow other scalars since they might be

    // valid input in programmatic form submissions. Any nested array values

    // are ignored.

    if (isset($input[$allowed_key]) && is_scalar($input[$allowed_key])) {

      $value[$allowed_key] = (string) $input[$allowed_key];

    }

  }

  return $value;

/**

 * Determines the value for a textarea form element.

 *

 * @param array $element

 *   The form element whose value is being populated.

 * @param mixed $input

 *   The incoming input to populate the form element. If this is FALSE,

 *   the element's default value should be returned.

 *

 * @return string

 *   The data that will appear in the $element_state['values'] collection

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

 */

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

  if ($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 : '';

  }

}

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

    // valid input in programmatic form submissions.

    if (!is_scalar($input)) {

      $input = '';

    }

    return str_replace(array("\r", "\n"), '', (string) $input);