Progressbar for a Flash game file

i have a game website, and sometimes is the swf game flash file > 2mb and the browser need a time to display it. And the Flash stay blank.

How i can make a progressbar with javascript to detect after how much time can the user pla开发者_运维技巧y the game ( Swf file)

thank u

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JqUploader - jQuery plugin for file upload and progressbar http://pixeline.be/experiments/jqUploader/

example, Escape Room Games

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You can do it using Flash it self :) Check it out here

http://www.wikihow.com/Make-a-Loading-Screen-in-Flash

http://www.kirupa.com/developer/actionscript/tween_as_preloader.htm