KanatestJS - Simple javascript hiragana/katakana drill

Over the weekend I got really bored, and came up with a javascript hiragana flash card thingy. It's really primitive right now and the randomness is not the best. If it gets popular I might consider improving it :-)

I got the idea after using Kanatest by Tomasz M±ka. Actually, I used the images from Kanatest, I hope that's allowed ;-)

If you wanna use be warned that it needs to preload about 1M of image data. There's no "Please wait" message so just wait until your browser's throbber stops moving.