THIS IS NOT BETA THIS IS SPARTA
<object width="560" height="340"><param name="movie" value="http://www.youtube.com/v/mwJCM9O9OZ4&hl=en_GB&fs=1&"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/mwJCM9O9OZ4&hl=en_GB&fs=1&" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="560" height="340"></embed></object>
Then it's not possible for normal users to do this. Like I wrote in first reply, not possible here.
I'm curious, what's actually the worst thing that could happen with html? And I'm actually asking, not sarcasm.