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/**

 * Get the error message as configured on the general CAPTCHA settings page.

 *

 * If the locale module is enabled, the error message will be returned

 * for the current language the page is rendered for. This language

 * can optionally been overridden with the $lang_code argument.

 *

 * @param string|null $lang_code

 *   an optional language code to get the description for.

 *

 * @return string

 *   String with (localized) error message.

 */

function _captcha_get_error_message($lang_code = NULL) {

  // If no language code is given: use the language of the current page.

  global $language;

  $lang_code = isset($lang_code) ? $lang_code : $language->language;

  // The hardcoded but localizable default.

  $default = t('The answer you entered for the CAPTCHA was not correct.', array(), array('langcode' => $lang_code));

  // Look up the configured error message or fall back on the (localized) default.

  if (module_exists('locale')) {

    $message = variable_get('captcha_error_message_' . $lang_code, $default);

  }

  else {

    $message = variable_get('captcha_error_message', $default);

  }

  return filter_xss_admin($message);

}

        $placement = (isset($buttons[count($buttons) - 1])) ? $buttons[count($buttons) - 1] : $buttons[0];