Asset::gzipEnabled

static function gzipEnabled()
{
	static $gzip = null;
	if ($gzip === null)
	{
		$gzip = (
			Option::get('main','compres_css_js_files', 'N') == 'Y'
			&& extension_loaded('zlib')
			&& function_exists('gzopen')
		);
	}
	return $gzip;
}