Close audio player when new player is opened

I'm using Acrobat Pro XI.   My document has a page that contains multiple buttons that each open a floating audio player.  Currently, if a user has clicked on a button to open a player, then clicks on a second button, both player will be open at the same time.  Is there a way to automatically close the first player when the second is activated? 

If not, is there javascript that can be added to a new button that will close all audio players?