public static function getComposerModule($className)
	{
		global $Composer;
		
		if ( $result = $Composer->findFile($className) ) {
			$result = substr($result, strlen(self::$root));
			
			if ( preg_match('#^vendor/([a-z0-9_-]+/[a-z0-9_-]+)/#', $result, $match) ) {
				return $match[1];
			}
		}
		
		return null;
	}