no "rendered" attribute in a4j:ajax (and f:ajax)

[captainvoid]

Anyone any idea why there isn't the attribute "rendered" any more? It existed in the old a4j:support in Richfaces 3.

In Richfaces 4 it disappeared, probably because the underlying f:ajax doesn't have the attribute either...

The thing is that I can't wrap a a4j:ajax in a ui:fragment (Faces exception thrown..)

So how do I add ajax behavior conditionally at runtime??

[captainvoid]

Ok,

I found out this one by myself:

I can use the "disabled" attribute to switch off the ajax call.