hi Tamas,
the files are hosted at my dropbox account (Public), but if you do understand a little how the browsers and spec's go, you will have no issue using it in your system: just disable some high level security, otherwise, move everything into your own domain inside the mime repository.
https://dl.dropboxusercontent.com/u/16071953/requestFullScreen.html
this is a sample 'fullScreen' html, it's on my public dropbox - you can download and modify as you see fit.
https://dl.dropboxusercontent.com/u/16071953/personasFullScreen.png
this is just a picture I took from our demo system, you will notice there is a simple 100w X 100h iFrame which links to the above URL.
hope somehow the example helps,
D.