public function renderJsContainerCircles(Map $map)
    {
        $output = array();

        foreach ($map->getCircles() as $circle) {
            $output[] = sprintf(
                '%s.circles.%s = %s',
                $this->getJsContainerName($map),
                $circle->getJavascriptVariable(),
                $this->circleHelper->render($circle, $map)
            );
        }

        return implode('', $output);
    }