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Microsoft® HTML5 Step by Step by Faithe Wempen

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JavaScript Events and jQuery

Most modern Web sites use JavaScript to dynamically respond to mouse actions on a Web page and change elements of that page based on those movements or on other user input. Doing this requires “event handling” which is a somewhat advanced concept—or at least one that requires JavaScript programming beyond what you’ve seen in the first few pages of this chapter!

To introduce event handling at this very early stage in your JavaScript adventure, I need the help of an additional tool, called jQuery. jQuery is an open source JavaScript file that not only removes the need for developers to handle many of the cross-browser incompatibilities but also simplifies much more advanced programming than would normally be available ...

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