Re: Status of an actionexecuter from a DeclarativeActionScript
There is no such thing as a DeclarativeActionScript - you probably meant to refer to DeclarativeWebScript. There is no way to get the status of an asynchronous action using public API. There is an internal API ActionTrackingService which can be used provided the action allows tracking, but usage of internal APIs is typically not recommended.
Also, why are you executing the action asynchronously when you need to wait for a response / status? Call it the normal way and wait for it to complete.