public function getUrlTrackGoal($idGoal, $revenue = 0.0)
    {
        $url = $this->getRequest($this->idSite);
        $url .= '&idgoal=' . $idGoal;
        if (!empty($revenue)) {
            $revenue = $this->forceDotAsSeparatorForDecimalPoint($revenue);
            $url .= '&revenue=' . $revenue;
        }

        return $url;
    }