Selective separability on spaces with an analytic topology

We study two form of selective separability, SS and SS+, on countable spaces with an analytic topology. We show several Ramsey type properties which imply SS. For analytic spaces X, SS+ is equivalent to have that the collection of dense sets is a Gδ subset of 2X, and also equivalent to the existence of a weak base which is an Fσ-subset of 2X. We study several examples of analytic spaces.