private function getFacebookSession($accessToken)
	{
		$facebookSession = new FacebookSession($accessToken);

		try 
		{
		  $facebookSession->validate();

		  return $facebookSession;
		} 
		catch (FacebookRequestException $ex)
		{
			throw new FacebookException($ex->getMessage());
		}
		catch (\Exception $ex) 
		{
			throw new FacebookException($ex->getMessage());
		}
	}