public function getUrl($image, $imageQuery = NULL)
    {
        // Experimental support for absolute picture url when is relative generator url set
        if($imageQuery && Strings::startsWith($imageQuery, '//'))
        {
            $imageQuery = Strings::substring($imageQuery, 2);
            $imageUrl   = $this->getPictureGeneratorUrl($image, $imageQuery);

            if($this->isUrlRelative)
            {
                if($this->websiteUrl)
                {
                    return $this->websiteUrl . $imageUrl;
                }
                else
                {
                    return '//' . $_SERVER['SERVER_ADDR'] . $imageUrl;
                }
            }
            else
            {
                return $imageUrl;
            }
        }

        return $this->getPictureGeneratorUrl($image, $imageQuery);
    }