Interactive activation of input method from a list

[Heime]

How can I make this function allow to user to select the input method 
interactively
from a list.  For instance, have a list composed of italian-keyboard and 
italian-postfix,
with the user selecting one of them. then applying activate-input-method to the 
user
selection?

(defun multilinge ()
  "Activate the Italian Dictionary and the Italian Environmment."
  (interactive)
  (setq ispell-local-dictionary "it_IT")
  (activate-input-method XXX) )