Conditioned radio-buttons form

[udi1234]

Hi everyone,
I want to know how to create a conditioned radio-box form. Let me give you an example:
In cell A1, I will write: "Are you married?", and in cells B1 and C1 I'll put radio buttons that says "no" and "yes", respectively.
Now, if the user will choose "no", I want that in cell A2 will appear a "follow-up" question: "Are you married more than 5 years?", and two radio boxes alongside ("no" and "yes" in cells B2 and C2, respectively).
However, if the user will choose "yes", I want that in cell A2 will appear the question: "Are you a widow(er)?", and two radio boxes alongside ("no" and "yes" in cells B2 and C2, respectively).

Is it possible? If so, I would be very thankful you can explain how, or just paste relevant links.

[Bernie Deitrick]

A much better solution than Excel is a form created using Google Documents Forms. They include the conditional branching that you describe, and are great for data collection and questionnaires.