Tricky answer. Javascript is beautiful, but not the DOM, and as have been said he would need to learn at least some HTML. On the other side, using only Javascr

Tricky answer. Javascript is beautiful, but not the DOM, and as have been said he would need to learn at least some HTML. On the other side, using only Javascript with a stand-alone interpreter would be a nice. I would go for Logo. [edit: a couple of spelling mistake]