Learn javascript

First year CS student.
Bored of making toy programs in C and want to learn Javascript.
What would be the definitive Javascript book to learn from?

You don't know learn javascript from a book. You gradually increase your understanding through cobbling together many different examples from the internet until it makes sense

Read this first, it'll bootstrap your knowledge: http://www.crockford.com/javascript/survey.html

Then read "Pro JavaScript Techniques", by John Resig, and "JavaScript: The Good Parts" by Crockford.

want to learn Javascript.

WHY