Being that I am not a programmer, but have become hooked on JavaScript, I was looking for a good book on the subject that was not over my head. This one fits the bill. It clearly explains the language so that anyone can understand.
My only problem has been with the example of a loan payment calculator (figure 1-3) on page 16. I went ahead and typed it up so that I could play with it and hopefully learn by example. I adapted it and came up with a mortgage calculator that works great in explorer but returns an infinity value in Navigator. I have looked at the code until my eyes cross and just can't figure out why it works on one platform and not the other. (It probably doesn't help that I failed high school math.) There is an example of my calculator at http://www.geocities.com/padme67/uhlercalc.html
I have several of the O'Reilly books now and have yet to be dissapointed!
Thanks