I'm looking to add some nifty toys to my web pages.

Can anyone recommend any Javascript or DHTML books? I know a little programming, so it doesn't need to be an absolute beginner's book. I don't want to delve too much into the heavy-duty programming as I just want to add some functionality (I already use PHP). Basically some complex popups/layers, forms manipulation, etc.

Beginning Javascript seems highly rated at Amazon. But it's only got one chapter on DHTML...

Thanks in advance.