Auto-start youtube video?

Hallo everyone.
I didn't know exactly where to post this, but since it has something do to
with youtube I though I would post it here.
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I know this sounds as a noob question, but I've been searching the
internet a long time to find out how to post a auto-starting video from Youtube, in a profile on a website, http://www.arto.dk. It is a danish website, and Denmark is a small country, so it didn't surprise me that I couldn't find af guide about this.

Anyone could tell me how to this?

I dunno how you put them on that website but you can edit the embed HTML to autoplay the video, by adding "&autoplay=1" to the end of the URL;

Original Code:

<object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/oP7wHOHYCdc"></param><param name="allowFullScreen" value="true"></param><embed src="http://www.youtube.com/v/oP7wHOHYCdc" type="application/x-shockwave-flash" allowfullscreen="true" width="425" height="344"></embed></object>

Autoplay Code:

<object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/oP7wHOHYCdc&autoplay=1"></param><param name="allowFullScreen" value="true"></param><embed src="http://www.youtube.com/v/oP7wHOHYCdc&autoplay=1" type="application/x-shockwave-flash" allowfullscreen="true" width="425" height="344"></embed></object>

That was exactly what I was looking for!
Thank you so much Olly! :b

Heh, no problem glad I could help