private function _generateAccessToken()
	{
		// Set the parameters.
		$parameters = array(
			'oauth_token' => $this->token['key']
		);

		if (strcmp($this->version, '1.0a') === 0)
		{
			$parameters = array_merge($parameters, array('oauth_verifier' => $this->token['verifier']));
		}

		// Make an OAuth request for the Access Token.
		$response = $this->oauthRequest($this->getOption('accessTokenURL'), 'POST', $parameters);

		parse_str($response->body, $params);

		// Save the access token.
		$this->token = array('key' => $params['oauth_token'], 'secret' => $params['oauth_token_secret']);
	}