Two JavaScript Books

In addition to the now quite famous "JavaScript: The Good Parts" by Douglas Crockford check out the following books that discuss JavaScript from a Functional Programming view point:

1. "Functional JavaScript" by MichaelFogus.  You will need to understand the Underscore JavaScript Library (http://underscorejs.org/) since the book heavily uses that.
2. "JavaScript Allongé" by Reginald Braithwaite.