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

        foreach ($this->computeMarkerImages($map) as $markerImage) {
            $output[] = sprintf(
                '%s.marker_images.%s = %s',
                $this->getJsContainerName($map),
                $markerImage->getJavascriptVariable(),
                $this->markerImageHelper->render($markerImage)
            );
        }

        return implode('', $output);
    }