public static function fromResponseValue(array $value, \PHPUnit_Extensions_Selenium2TestCase_URL $parentFolder, \PHPUnit_Extensions_Selenium2TestCase_Driver $driver)
	{
		if (!isset($value['ELEMENT']))
		{
			throw new \InvalidArgumentException('Element not found.');
		}
		$url = $parentFolder->descend($value['ELEMENT']);
		return new static($driver, $url);
	}