public function createPhoto($event, $source, $message = null)
	{
		// Set POST request parameters.
		$data = array();
		$data[basename($source)] = '@' . realpath($source);

		if ($message)
		{
			$data['message'] = $message;
		}

		return $this->createConnection($event, 'photos', $data, array('Content-Type' => 'multipart/form-data'));
	}