LOL ...

I'm not going to weigh in on THIS one!

I hate Flash web sites as much as I actually love Flash animations.

Can you do a web site in Flash? Of course you can. But just because you CAN do something is no reason why you SHOULD!

The preloader you would use would, of necessity, take even more time to download, so it would have to be something really entertaining to make a visitor to your site want to watch it while something else is loading.

Have fun...
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Will