Ken Butters wrote:Is one or both of those topics the primary emphasis of your book?
Yes. In fact, I'd say that they are the focus of the book. The book started as lessons that John learned the hard way while developing jQuery. It's been expanded beyond that, but many of the examples are still rooted in "here's a real-world problem I had to solve". And of course, browser compatibility is always one of those problems.
Would you say that you give equal airtime to both javascript and CSS? (both of which I have my sights on learning right now)
CSS itself is not covered at all. One of the advanced chapters is on writing a CSS selector engine, though. The book is purely focused on JavaScript.