flash progress bar in webpage? Using javascript

How to make progress bar in my page, that show how much flash file g开发者_Python百科ot progress in dwonload.

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I'm guessing you mean just a normal flash preloader inside flash? There are loads of different tutorials on Google each showing you examples of how to do it in AS2 and AS3 with example code.

AS2:

http://the-dude.co.uk/tutorials/basic-flash-preloader-as2/

AS3

http://www.republicofcode.com/tutorials/flash/as3preloader/

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This loading bar tutorial will get you started.