// check captcha
    if((!isErrors()) && (SITE_CONFIG_SHOW_CAPTCHA_ON_CONTACT_FORM == 'yes'))
    {
        if (!isset($_REQUEST['g-recaptcha-response']))
        {
            setError(t("invalid_captcha", "Captcha confirmation text is invalid."));
        }
        else
        {
            $resp = verifyCaptcha($_REQUEST["g-recaptcha-response"]);
            if ($resp == false)
            {
                setError(t("invalid_captcha", "Captcha confirmation text is invalid."));
            }
        }
    }