how to make the server aware of ReverseAjax

Seems like i'm messing too much with connection limit problem. But, here goes my query.
In my application, i do "dwr.engine.setActiveReverseAjax(true)" and "dwr.engine.setActiveReverseAjax(false)" time-to-time to reduce the burden of keeping one permanent connection for reverse ajax even if the client does not need it.

I want my server also to be aware of this thing i.e, whether there is a reverse ajax connection with a client or not. Explicitly Calling the server is not a reliable approach. I want some sort of listener at the server end which keeps track of when ActiveReverseAjax has been set true/false.

Otherwise, can somebody suggest my some way to set ActiveReverseAjax true or false from server side only.


Plz somebody help me out.. Hey Joe, are you listening?