If you are moving to a new frame to show this content, and
radioButton is set to no by default then you can just tell
dateField components to be not visible. Then when/if the user
the yes radioButton, set the visible of these dateFields to
the onChange function of the yes button.
If you are creating the radioButtons and the dateFields using
actionscript, then just set the visible property of the
objects at the end of the end of the function that calls
createClassObject(). Then make them visible as above.