JavaScript (or ECMA Script) is one of the most popular and also most under rated programming languages used on the internet today. This powerful language is object based, which means that like C++, Java or C# you can create objects to work with in your code.

JavaScript is commonly used for programming HTML web pages. For example, when you enter an invalid post code in an address field, JavaScript might be used to notify you of the error. Dynamic HTML (DHTML) is the term given to using JavaScript, HTML, the Document Object Mode (DOM) and Cascading Style Sheets to create interactive web pages. JavaScript continues to play an important part in the delivery of next generation web applications. Technologies such as AJAX and E4X are making use of JavaScript to provide highly interactive and powerful web based applications.