global $_PLUGINS;
$_PLUGINS->registerFunction( 'onAfterUserRegistration', 'registered', 'tutorialtriggersPlugin' );

// Define the plugin class:
class tutorialtriggersPlugin extends cbPluginHandler {
	
	// Establish the trigger function:
	function registered( $user ) {
		cbimport( 'cb.authentication' );

		$cbAuthenticate		=	new CBAuthentication();

		$messagesToUser		=	array();
		$alertmessages		=	array();
		$redirect_url		=	null;
		$resultError		=	$cbAuthenticate->login( $user->username, false, 0, 1, $redirect_url, $messagesToUser, $alertmessages, 0 );

		if ( $resultError ) {
			$user->_error	=	$resultError;
		} else {
			return ( count( $alertmessages ) > 0 ? stripslashes( implode( '<br />', $alertmessages ) ) : true );
		}
	}
}