Hi there,

I'd like to build my own version of something like this, and customise the design:

Code:
http://www.chordbook.com/guitarchords.php
Has anyone seen any posts, or tutorials where I could get started from? I've got a good idea of the process, but little things like the way you can Drag and Drop the circles into position is something I've never done before...

Thanks to anyone who can point me in the right direction!!