Lift Ajax request time out

[Lift_Scala_user]

We would like to have different timeouts for different request in our
application
This seems to be the older post that explains using ajaxRequestTimeout
https://groups.google.com/group/liftweb/tree/browse_frm/month/2007-07?hide_quotes=no

This however seems to have been deprecated
I tried a general case just to see if it works but it wouldnt print
anything. Am I missing something?
LiftRules.calcRequestTimeout = Full( (request:Req) =>{

println("*******inside calcRequestTimeout ")
180000
})

[Jeppe Nejsum Madsen]

It doesn't look like the calcRequestTimeout value is used anywhere :-(

/Jeppe