How to stop Captivate movie?

I have an audio-driven Captivate 3 .swf playing on my Lectora page. The page also contains a button that launches a pop-up browser window containing another Captivate audio-driven movie. I need to be able to stop the playback of the Captivate movie in the main content page before the audio in the pop-up window begins. I tried adding a Flash Command -> Stop action to the button, but this does not stop the Captivate playback when published to HTML (strangely it does work in preview mode). Is there any way to stop the Captivate movie from Lectora?I've seen this topic mentioned a few times in the past, but no good solution yet. I am aware of the BeWitched extension, but I would prefer to have a solution that didn't involve third-party software.Thanks,Mark