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1.1. Execution Requirements

> The version of the application discussed here requires a browser that supports JavaScript 1.1. That's good news for people using Netscape Navigator 3 and 4 and Microsoft Internet Explorer 4 and 5, and bad news for IE 3 users. If you're intent on backwards compatibility, don't fret. I'll show you how you can accommodate IE 3 users (at the price of functionality) later in this chapter in Section 1.5.

All client-side applications depend on the resources of the client machine, a fact that's especially true here. It's a safe bet the client will have the resources to run the code, but if you pass the client a huge database (more than about 6,000 or 7,000 records), your performance will begin to degrade, and you'll eventually choke the machine.


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