Swaping button on stage to button in library

Question

I have event listeners for a MouseEvent.CLICK and so when the
listener triggers the function I want it to change the "box" symbol
on the stage to the corresponding symbol in the library for the
target.
So basically, what is the method and syntax that allows for
such a swap?
Thx.

Answer 1

you can't swap objects.
but you can remove an object from the display list and you
can add an object.
to remove an object, use the removeChild() method of
displayobjectcontainers.
to add an object, assign a class to your library item,
instantiate it (using the "new" constructor), and add it to the
display list using addChild.