load question/dialog in %post section

["Avner BenHanoch" <avner kinor com>]

Is there a way to ask the user question in the %post section and store the
answer somewhere in the system.
The UI can be simple text, but a decent dialog will be nicer.

If it is possible, can I add timeout to the question, so the system will
continue after some seconds?


Thanks in advance,
  Avner