Youtube Loop coding - help!!

I have been trying for the last 2 hours to get a video that I have embedded on my site to autoplay and loop.
The autoplay works fine, I have removed the relevant videos, removed the border and controls but urrrrrrrrrrrrrrr can't get the loop to work!!

I'm using:

src="http://www.youtube.com/embed/-XXXXXXXXX?&rel=0&autoplay=1&controls=0&loop=1" frameborder=0" allowfullscreen>

This is the last coding that I tried, there were several others that I also could not get to work.

I have a headache, I need a drink, my dog needs to go out, if someone could help I would reeeeeeeeeeeeeeeeallly appreciate it!!

This may help

Hawkster said:

This may help

Code:

http://www.dynamicdrive.com/forums/showthread.php?74403-Youtube-autoplay-and-loop

Code:

https://developers.google.com/youtube/player_parameters

Click to expand...

Thank You !!!!!!!!!