Use AJAX scripting responsibly
I know the feeling you can get when you learn or read about a new trick or technique - you just want to find a problem to apply your new favourite solution to. But a lot of the time the solution fixes a problem that doesn’t exist and only creates new, more serious problems, especially when you consider accessibility.
Shaun Inman’s article Responsible Asynchronous Scripting contains more good advice for web developers who want or need to use asynchronous scripting when building a web app.
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