Graceful degredation is essential if you're creating web content that may not render reliably in all browsers. Here's some ways to play with Drupal and JQuery - replacing flash animations with back-end-editable, SEO-friendly html and serving up cross-browser page transitions - while also providing reliable fallbacks when things go wrong.
When a client requested a flash-based, CMS-backed website that also scored high on SEO and could be viewed usefully by non-flash users, it got me to exploring JQuery animation as a flash replacement.
Admittedly, there's nothing radical about that, but it did allow me to stack the whole site on top of Drupal - making for easy editing, secure and solid foundations, easy expansion, and great SEO potential... all without ditching the animation they were after.
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