Sound switching

hey, im wanting to create a simple feature in my flash ap that allows a user to select if they want voice overs played or the standard beep beep (fashy sounds)

i have three buttons (onBtn, offBtn and rollMe). does anyone know how i could do somting like…

if onBtn is selected then… on rollover ‘rollMe’ mySound1.start();

else if offBtn is selected then… on rollover ‘rollMe’ mySound2.start();

?

Ty