public function urlOfImage($filename, $width=300, $height=300)
    {
        $url  = Config::get('app.url');
        $url .= '/';
        $url .= Config::get('lasallecmsfrontend.images_folder_resized');
        $url .= '/';
        $url .= $this->parseFilenameIntoResizedFilename($filename, $width, $height);

        return $url;
    }