I need to get up to speed on client-side programming.

At my current job, I need to maintain Classic ASP sites that are using
Yahoo User Interface, Dreamweaver Spry (css, xml and javascript), and JSON and Javascript to get data from a SQL database and display manipulated results with an Ajax front-end.

Can you recommend book(s) that would get me working fast and
other book(s) that would give some in-depth understanding of the principles and strategies inherent in these disciplines?

My background is ColdFusion web application development and database design. I use CSS and HTML.