$arParams["USE_CAPTCHA"] = (($arParams["USE_CAPTCHA"] != "N" && !$USER->IsAuthorized()) ? "Y" : "N");
$arParams["USE_CAPTCHA"] = (($arParams["USE_CAPTCHA"] != "N" ? "Y" : "N");
$arParams["USE_CAPTCHA"] = (($arParams["USE_CAPTCHA"] != "N") ? "Y" : "N");