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Ajax Starter Kit by Phil Ballard

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4. Client-Side Coding Using JavaScript

In this lesson we introduce the concept of client-side scripting using JavaScript. Client-side scripts are embedded in web pages and executed by a JavaScript interpreter built into the browser. They add extra functionality to an otherwise static HTML page.

About JavaScript

JavaScript was developed from a language called LiveScript, which was developed by Netscape for use in its early browsers. JavaScript source code is embedded within the HTML code of web pages and interpreted and executed by the browser when the page is displayed.

Using JavaScript, you can add extra functionality to your web pages. Examples include

• Change the way page elements are displayed

• Add animation and other image effects

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