How to pause mp3 playback

[rlinsurf]

I have the following script. This is my first attempt to create a Play/Pause toggle. I can get it to Play, of course, but Pause not so much:

If [ jotts::playPause  ≠ 1 ] 

Go to Field [ jottmp3s::mp3Play ] 

[ Select/perform ] 

Set Field [ jotts::playPause; 1 ] 

Else 

Set Field [ jotts::playPause; 0 ] 

?

End If