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    <p>I've found four things helpful in developing JavaScript applications: </p> <ul> <li>Feature detection</li> <li>Libraries</li> <li>Iterative Development using Virtualization</li> <li>JavaScript: The Definitive Guide, Douglas Crockford &amp; John Resig</li> </ul> <p><strong>Feature Detection</strong></p> <p>Use reflection to ask if the browser supports the desired feature. If you want to know what event handling a browser supports, you can if(el.addEventHandler) for W3C compliance, if(el.attachEvent) for the IE-type, and finally fall back on el.['onSomeEvent']. </p> <p><em>ONE BIG BUT!</em></p> <p>Browsers sometimes lie about what features they support. I can't remember, but I ran into an issues where Firefox implemented a DOM feature, but would return false if you tested for that feature!</p> <p><strong>Libraries</strong></p> <p>Since you're already working with jQuery, I'll save the explanation. But if you're running into problems you may want to consider YUI for it's wonderful cross-browser compatibility. They even work together.</p> <p><strong>Iterative Development with Virtualization</strong> </p> <p>Perhaps my best advice: Run all your test environment's at once. Get a Linux distro, Compiz Fusion and a bunch of RAM. Download a copy of either VMWare's VMWare Server or Sun's Virtual Box and install a few operating systems. Get images for Windows XP, Windows Vista and Mac OS X.</p> <p>The basic idea is this: Compiz Fusion gives you 4 Desktops mapped onto a Cube. 1 of these desktops is your Linux computer, the next your Virtutual Windows XP box, the one after that Vista, the last Mac OS X. After writing some code, you alt-tab into virtual computer and check out your work. Plus it looks awesome.</p> <p><strong>JavaScript: The Definitive Guide, Douglas Crockford &amp; John Resig</strong></p> <p>These three sources provide most of my information for JavaScript development. The Definitive guide is perhaps the best reference book for JavaScript. </p> <p>Douglas Crockford is a JavaScript guru (I hate the word) at Yahoo. Lookup his series "Douglas Crockford Theory of the DOM", "Douglas Crockford Advanced JavaScript", "Douglas Crockford Theory of the Dom", and ""Douglas Crockford The Good Parts" on Yahoo! Videos. </p> <p>John Resig (as you know) wrote jQuery. His website at ejohn.org contains a wealth of JavaScript information, and if you dig around on Google you'll find he's given a number of presentations on defensive JavaScript techniques.</p> <p>... Good luck!</p>
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    1. POWhat is the best technique for consistent form, function between all web browsers (including Google Chrome)?
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    1. COrooney, thank you for your advice. You imply that the troublemaker is Javascript, not so much HTML/CSS--a good point. Virtualization is an interesting solution. I've been using EC2 recently for throwaway test work. Maybe it's time for a RAM upgrade :)
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