Does anyone know how to do this????

Here's my situation:

In my Flash Movie, I want to have buttons so the user can pause and then play the animation. Instead of having a pause button and a play button, I want to have only one button with two graphics (1 for pause and 1 for play). It starts off as a pause Graphic and then when the user clicks on it to pause the movie it turns to the play graphic and vice versa. Thanks in advance