Your plugin has been working well for me, thank you! However, I'm having a minor issue with it.
It looks fine on Firefox and Chrome, but in Internet Explorer 10 and Safari, my YouTube video's (when they are playing or finished playing), always render on top of my FancyBox lightbox when I pop out my images.
As you'll be aware, setting the z-index won't work. I've tried adding 'wmode=opaque' and 'wmode=transparent' to the YouTube URL. This works, but only before the video is played. Once the video is playing, or has completed playing, it will always show through the popped out images.
Please can you guide me? :)