Here are some trick today how to make your youtube video can automatically play when you embed code into your blog or web. To make the youtube video play automatically just add this code &autoplay=1 to both of the youtube url. For example:

<object width=”425″ height=”344″><param name=”movie” value=”http://www.youtube.com/v/Fmk4A_W4JrE&hl=en“></param><embed src=”http://www.youtube.com/v/Fmk4A_W4JrE&hl=en” type=”application/x-shockwave-flash” width=”425″ height=”344″></embed></object>

Just replace this code:

http://www.youtube.com/v/Fmk4A_W4JrE&hl=en

to

http://www.youtube.com/v/Fmk4A_W4JrE&autoplay=1

and here the final result i got:

<object width=”425″ height=”344″><param name=”movie” value=”http://www.youtube.com/v/Fmk4A_W4JrE&autoplay=1“></param><embed src=”http://www.youtube.com/v/Fmk4A_W4JrE&autoplay=1” type=”application/x-shockwave-flash” width=”425″ height=”344″></embed></object>

For another trick you can add this &autoplay=1&loop=1 to your youtube video url to make your video automatically restart when your video done. For example

http://www.youtube.com/v/Fmk4A_W4JrE&autoplay=1&loop=1