Pausing a dynamically loaded swf


I have a swf that loads an external swf and allows playback of it - basic pause, play, back and forward controls.

It’s all working great, except if I have some actionscript that’s doing some animation (one swf has bubbles floating around in the background).

Is there a way to pause the loaded swf, including all scripts? Then have them pick up where they left off when you hit play again?