Thank you very much bonniebeth. 
tonguello where exactly the problem is?
HI!
well...when i pick on the plane to get the color a sign appears saying "failed to creat canvas element" and then another "failed to read pixel......ect"
Because apparently it does not work with Windows Explorer. Should be Firefox or other... It's a great link though, I just have to download firefox I think...  

Thanx!! 
Gaston