OK, I uploaded it myself and it works. Here it is:
<object width="425" height="355"><param name="movie" value="http://www.youtube.com/v/GMkX1YN7xCI&hl=en"></param><param name="wmode" value="transparent"></param><embed src="http://www.youtube.com/v/GMkX1YN7xCI&hl=en" type="application/x-shockwave-flash" wmode="transparent" width="425" height="355"></embed></object>