mikeletron wrote:just one thing, is it possible with some parameter to force full screen at least for Youtube?
You mean after visitor clicks to view a Youtube video in popup, it will immediately go full screen? I'm afraid this isn't possible. There are many security issues related to full screen, because browsers don't want to force browser into full screen mode unless visitors explicitly chose this. There are some workarounds like detecting "any click" on page and then go full screen. However, in the case of Youtube, taking the video full screen is on their side, and I have never seen this and can't imagine they will allow that.