Creating Play/Pause Button

I am trying to create a pause button that is also a play button when it is pressed… I thought this was a set visible and set invisible, but I got lost in the translation somewhere and I couldn’t figure it out.

If you take a look at the FLA I have created to seperate buttons for the play/pause. I want them to be in the same place and when you click pause, the play button will appear, and vise - versa.

Thank you for any help guys… this place is life saving.

Jason