Rails - Dec 2005 - Best way to handle associated object creation WithIN the SAME form ?

hi,

let''s take a very simple example.

2 tables: people and phones
One person has_many :phones
One phone belongs_to :person
(the phone table contains a person_id)


i began with the classical scaffold generator for the main form (the
people form)....

How can i add a phone , associated to the NOT YET SAVED person objet ,
with an ajax mean?

do i have to put the unsaved person in session to be abble to
associate a new phone to it with ajax?




just trying to make a single screen address book like in the joyent teaser.

help