protected function _renderVarInput_captcha($form, &$var, &$vars)
{
return sprintf('<input type="text" name="%s" id="%s" size="%s" value="%s" />', htmlspecialchars($var->getVarName()), $this->_genID($var->getVarName(), false), strlen($var->type->getText()), htmlspecialchars($var->getValue($vars))) . '<br />' . Horde_Core_Translation::t("Enter the letters below:") . '<br />' . $this->_renderVarDisplay_captcha($form, $var, $vars);
}