As well as covering the basics of this well established and diverse subject area at all levels, Wrox books in this category continue to push into specialist areas, getting straight to the heart of key features such as tag libraries in JSP, and security in Java.JavaScript is the language of the web, used in programming all the major browsers. It is a powerful scripting language that allows web developers to produce more powerful, user-friendly, and interactive web pages. JavaScript is not only for client-side development. It's increasingly finding favor as a server side programming language - in Microsoft's ASP technology - and as a programming language for administration tasks with applications such as Windows Script Host.