Wait, you're trying to beat NSA by writing your own crypto? This is worse than useless :), all you'll do is flag that communication for further research (which the NSA will then break within a couple of hours if need be), at least with plain text you'll stay in the noise of the masses.
I don't want to beat the NSA, I was just asking for a better javascript AES script.
I have nothing to hide, that's why I would be very happy to get out of the noise of the masses and make the NSA waste a couple of hours :)