It seems that you're using an outdated browser. Some things may not work as they should (or don't work at all).
We suggest you upgrade newer and better browser like: Chrome, Firefox, Internet Explorer or Opera

I try to rebind keys because I'm using an AZERTY keyboard and game only lets me rebind the 1st key (skill 1) and when I click/double click to rebind the others nothing happen.
Yep, same for me. Do you got any answer from somewhere ?