public static function loadClass($className) {
		if($className === null) {
			throw new WURFL_WURFLException("Unable To Load Class : " . $className);
		}
		if (substr($className, 0, 6) !== WURFL_ClassLoader::CLASS_PREFIX) {
			return false;
		}
		if (!class_exists($className, false)) {
			if (self::$classPath === null) self::$classPath = dirname(__FILE__) . DIRECTORY_SEPARATOR;
			$classFilePath = str_replace('_', DIRECTORY_SEPARATOR, substr($className, 6)) . '.php';
			include self::$classPath.$classFilePath;
		}
		return false;
	}