Anuradha Prasanna wrote:Is it possible to learn it within 1 week?
Depends on how well you want to learn it. As Bear said, the basics are easy, especially if you know any other programming languages. Using JavaScript *well*, however, requires some paradigm shifts if you're not familiar with other protoypal inheritance languages like Self.
I always recommend JavaScript: The Good Parts and Doug Crawford's JavaScript pages as excellent resources, as well as his videos. If you can understand all of that, you're on your way. I'd also strongly recommend picking up a good JavaScript library and learning how to use it effectively, either jQuery or Prototype being good choices (although there are other libraries, those two are used the most).