Introduction to JavaScript

   »    Free Introductory JavaScript Tutorial, Learn to Start JavaScript Coding

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Language References

DevGuru JavaScript Introduction
http://www.devguru.com/Technologies/ecmascript/quickref/javascript_intro.html  

JavaScript Tutorials

WebMonkey’s JavaScript Resource Page
http://www.hotwired.com/webmonkey/programming/javascript/  

Website Abstraction’s JavaScript Tutorials
http://wsabstract.com/javaindex.shtml  

WDVL: Authoring JavaScript
http://wdvl.internet.com/Authoring/JavaScript/

Script Archives

JavaScript Source
http://javascript.internet.com/  

DevHead’s JavaScript Library
http://www.zdnet.com/devhead/resources/scriptlibrary/javascript/  

Cornell Class

Computer Science 130
http://www3.cs.cornell.edu/cs130/  


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Some older browsers are incompatible with JavaScript. JavaScript can also be turned off on many browsers. You can turn it off on Netscape by going to Edit > Preferences > Advanced and unchecking the Enable JavaScript checkbox. It is therefore a good idea to make sure that someone viewing your page without a JavaScript enabled browser can navigate your page properly. For examp le, creating links as alternatives to using the pull down menu above would provide such accessibility.


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JavaScript allows us to change the text in the status bar of the window through the window.status property.
We will now show you how to place a welcome message on the status bar as soon as your page finishes loading. The event handler goes in the opening <body> tag
1. Put this code in the body of your HTML document: (more…)


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We saw that a MouseOver can be used to change the image displayed when the mouse rolls over an image. This has an interesting application in animated images. Let’s say we have two versions of a GIF image, one of which is a still and one of which is animated. We can use a MouseOver to animate a still image when the mouse rolls over it. In your class files folder you have two images, logoscroll.gif and logostill.gif which can be used to create this effect. (more…)


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