http://javascript.about.com/ Get the latest headlines from the About.com Focus on JavaScript GuideSite. http://z.about.com/f/lg/s10.gif http://www.about.com/ 118 20 en-us 2008-05-10T15:59:02Z hourly 1 2000-01-01T12:00+00:00 http://javascript.about.com/b/2008/05/11/introduction-to-form-field-validation.htm One of the first types of JavaScript you are likely to need to write for yourself is to validate a form. Before we start looking at how to validate form fields... http://javascript.about.com/b/2008/05/11/introduction-to-form-field-validation.htm 2008-05-11T14:56:34Z http://javascript.about.com/b/2008/05/10/watermarking-images.htm Don't rely on JavaScript to protect your images! The only effective way to protect images on your web site is to watermark them. Find out why this method works while the... http://javascript.about.com/b/2008/05/10/watermarking-images.htm 2008-05-10T15:59:02Z http://javascript.about.com/b/2008/05/09/alternatives-to-eval.htm Some JavaScript commands are so inefficient and so rarely needed that you have to wonder why they are included in JavaScript in the first place. "eval" is one of the most... http://javascript.about.com/b/2008/05/09/alternatives-to-eval.htm 2008-05-09T12:02:33Z http://javascript.about.com/b/2008/05/08/what-javascript-cannot-do.htm Use the right tools for the job. While it is possible to put screws in with a spanner a screwdriver works far more effectively. Of course that screwdriver wont help... http://javascript.about.com/b/2008/05/08/what-javascript-cannot-do.htm 2008-05-08T14:34:37Z http://javascript.about.com/b/2008/05/07/aborting-ajax.htm Sometimes when waiting for an Ajax response the situation changes so that you no longer need it. Since Ajax is normally run asynchronously where we don't wait for the response to... http://javascript.about.com/b/2008/05/07/aborting-ajax.htm 2008-05-07T12:52:02Z http://javascript.about.com/b/2008/05/06/html-comments-and-javascript.htm What happens when you include HTML comments inside your JavaScript? When JavaScript was first introduced, only Netscape 2 supported it and so it was necessary to hide the JavaScript from browsers... http://javascript.about.com/b/2008/05/06/html-comments-and-javascript.htm 2008-05-06T09:54:05Z http://javascript.about.com/b/2008/05/05/extending-objects.htm When JavaScript doesn't provide the method you need you can add it yourself. In the last few modern JavaScript tutorials we have looked at the many different objects that JavaScript defines... http://javascript.about.com/b/2008/05/05/extending-objects.htm 2008-05-05T05:49:15Z http://javascript.about.com/b/2008/05/04/putting-it-all-together.htm If you have been following the original series of JavaScript tutorials over the last 30 or so weeks then you now have a basic knowledge of JavaScript. The final tutorial in... http://javascript.about.com/b/2008/05/04/putting-it-all-together.htm 2008-05-04T15:14:04Z http://javascript.about.com/b/2008/05/03/lotto-picker.htm JavaScript has powerful array functionality. Sometimes just a few lines of JavaScript can do quite a lot. Many countries these days have some sort of lottery or lotto or pools (or... http://javascript.about.com/b/2008/05/03/lotto-picker.htm 2008-05-03T15:45:23Z http://javascript.about.com/b/2008/05/02/body-mass-index-calculator.htm JavaScript can create all sorts of calculators, You just need to know how the calculation is done. When someone enters their height and weight into this JavaScript calculator then they will... http://javascript.about.com/b/2008/05/02/body-mass-index-calculator.htm 2008-05-02T10:43:42Z