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  // Add JavaScript for general CAPTCHA functionality.

  drupal_add_js(drupal_get_path('module', 'captcha') . '/captcha.js');

  // Get the form ID of the form we are currently processing (which is not

  // necessary the same form that is submitted (if any).

  $this_form_id = $complete_form['form_id']['#value'];

    // Store the solution in the #captcha_info array.

    $element['#captcha_info']['solution'] = $captcha['solution'];

    // Make sure we can use a top level form value $form_state['values']['captcha_response'], even if the form has #tree=true.

    $element['#tree'] = FALSE;

 */

function theme_captcha($variables) {

  $element = $variables['element'];

  if (!empty($element['#description']) && isset($element['captcha_widgets'])) {

    $fieldset = array(

      '#type' => 'fieldset',

 */

function captcha_form_alter(&$form, &$form_state, $form_id) {

  if (!user_access('skip CAPTCHA')) {

    // Visitor does not have permission to skip CAPTCHAs.

    module_load_include('inc', 'captcha');

      _captcha_insert_captcha_element($form, $captcha_placement, $captcha_element);

    }

  }

    variable_get('captcha_administration_mode', FALSE)

    && user_access('administer CAPTCHA settings')

    && (arg(0) != 'admin' || variable_get('captcha_allow_on_admin_pages', FALSE))

      '#collapsed' => TRUE,

      '#attributes' => array('class' => array('captcha-admin-links')),

    );

    if ($captcha_point !== NULL && $captcha_point->captcha_type) {

      $captcha_element['#title'] = t('CAPTCHA: challenge "@type" enabled', array('@type' => $captcha_point->captcha_type));

      $captcha_element['#description'] = t('Untrusted users will see a CAPTCHA here (<a href="@settings">general CAPTCHA settings</a>).',

          '@disable' => url("admin/config/people/captcha/captcha/captcha_point/$form_id/disable", array('query' => drupal_get_destination())),

        )),

      );

      // Add an example challenge with solution.

      // This does not work with the reCAPTCHA and Egglue challenges as

      // discussed in http://drupal.org/node/487032 and

      $captcha_element['add_captcha'] = array(

        '#markup' => l(t('Place a CAPTCHA here for untrusted users.'), "admin/config/people/captcha/captcha/captcha_point/$form_id", array('query' => drupal_get_destination()))

      );

    }

    // Get placement in form and insert in form.

    $captcha_placement = _captcha_get_captcha_placement($form_id, $form);

    _captcha_insert_captcha_element($form, $captcha_placement, $captcha_element);

  }

  // Add a warning about caching on the Perfomance settings page.

        )->fetchField();

        if ($expected_captcha_token !== $posted_captcha_token) {

          // Invalidate the CAPTCHA session.

          $posted_captcha_sid = NULL;

        }

        ->expression('attempts', 'attempts + 1')

        ->execute();

      // Set form error.

      // Update wrong response counter.

      if (variable_get('captcha_enable_stats', FALSE)) {

        variable_set('captcha_wrong_response_counter', variable_get('captcha_wrong_response_counter', 0) + 1);

  // when the challenge is solved correctely on preview, the form is still

  // not completely submitted, but the CAPTCHA can be skipped.

  if (_captcha_required_for_user($captcha_sid, $form_id) || $element['#captcha_admin_mode'] || $element['#captcha_always']) {

    // Update captcha_sessions table: store the solution of the generated CAPTCHA.

    _captcha_update_captcha_session($captcha_sid, $captcha_info['solution']);