CHAPTER 5

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Using JavaScript and Ajax to Dynamically Load Page Elements

Web applications are adopting advanced user interface features traditionally found in desktop applications. Drop-down menus, dynamic list boxes, pop-up windows, expanding and collapsing display panes, and live data updates were once available only on platform-specific applications or code-heavy Java apps. Now these features can be found on quick-loading web sites that use technology built into almost every web browser to provide much more immediate and dynamic site interaction.

At the center of this push for a rich user experience on web pages is a set of technologies collectively ...

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