<object width="425" height="355"><param name="movie" value="http://www.youtube.com/v/Pb5c5KBXSvk&rel=1"></param><param name="wmode" value="transparent"></param><embed src="http://www.youtube.com/v/Pb5c5KBXSvk&rel=1" type="application/x-shockwave-flash" wmode="transparent" width="425" height="355"></embed></object>

Or

 http://www.youtube.com/watch?v=Pb5c5KBXSvk