Initialize controls in AccordionPane

I have an Accordion with 3 AccordionPanes. Each AccordionPane has several controls used to perform some logic. The Accordion is in a TabPanel. I want to be able to:

1. Reset or initialize the controls in each AccordionPane when the TabPanel is entered (or exited).

2. Prevent the user from selecting another AccordionPane while work is being done in the current AccordionPane, or at least warn the user that changing panes will reset all controls in the Pane being left.

3. Reset or initialize controls in each AccordionPane when entering or exiting one of the AccordionPanes.

All this preferably with as little javaScript as possible - preferably none.

Thank you