Stop all other players when play function is used.

[Mike-Huffman]

I have an issue where I cannot seem to stop or pause playback of all other player instances when the play function is called on a specific player. I have a page that uses multiple player instances (one for each playlist) and I would like to be able to only play one at a time stopping all other playback if the user clicks play. Currently they all play at the same time if called and it creates a huge issue. Thanks!