How do i change mouse cursor animation?

hi guys, I learnt how to change a normal mouse cursor
into something different when the mouse cursor is located
within the flash file (SWF)

i was wandering whether it is possible to change the mouse cursor
to something else if the user clicks the mouse cursor.

example: the mouse cursor is alphabet A, when user clicks the mouse cursor, it changes to B, once the user lift off his mouse, it changed back to A.

i tried searching for a tutorial on this in kirupa but they don’t have any.