[R] predicting residual expected survival times

[Anne]

DeaR-Helpers
Is there an implemented method to predict residual expected survival
times for parametric/Cox PH models ? (I have modelled my data using
the survival library)
I would like to predict for a given subject (with a given profile )
having survived up to time Ts the expected residual surviving time (or
the  residual survival time quantiles)

Thanks a lot
-- 
Anne