Thanks Egg. Although correct me if I'm wrong, but this seems to play any video selected in a placeholder on the page. I'm trying to create popups with videos in them set to autoplay. The problem is that although the popups aren't visible when the main page loads they all start playing anyway.

You can see the video links on the righthand side at www.smoothjazzevents.co.uk

I currently have them opening the youtube page in another tab, but would have preferred the video to play in a popup.