Communicate between responders and events in Cairngorm

Hello all
I am implementing presentation model pattern in Cairngorm. Now I generally separate the responder from command classes for the sake of dividing the responsibilities - command basically set the properties on model & execute sequence commands (if any), while responders handle the task of acting on the response received from server side.
But I have a scenario where I have defined a callback function in my event class and need to call it in the responder. How can I do that? Does the responder have any idea which event triggered the whole process? If yes, how can it refer that particular event class and its methods/properties?
Can somebody help me out here?
With best regards
ShiVik

Thanks Paul.
I have basically understood the cairngorm workflow and the presentation model. I have implemented Cairngorm quite easily in many of my views. But the problems were there to see as you mentioned in your blogs about presentation patterns. Since then, I have been seeking out best practices using presentation model. But it keeps on giving me a hard time.
Sometimes it just doesn't seem worth it. Like I had created a loginState property in modelLocator to manage the view states in a login screen app. The states were ERROR, LOGGED_IN, LOGGED_OUT. The view was bound directly to modelLocator's property.
But when I thought about implementing it in presentation model, I could think about following things:
Creating a viewState property in presentation model for the view.
Binding the view to the property in presentation model. Till here everything goes smoothly.
When I update the loginState of modelLocator, I also need to update viewState of presentation model????
To update the viewState of presentation model, I need to create a callback function in presentation model.
I need to update the event as shown in this example and update the instance of that event, but what do I pass as reference to callback function?
Too much going on for me to pickup.
With best regards
ShiVik

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