Anyone know how ??困惑:困惑:困惑:困惑:
Hello... I've been looking for about 3 days now... I cant figure out how websites do the following:

Preload a swf file while displaying something, such as an Advertisement, through the use of Javascript (possibly AJAX?).

I'm guessing it could be as simple as hiding the swf (flash file) and then unhiding it (+ hide the advertisement/wateva) - except theres an actual loading bar with progress:

An example can be found here:
http://www.337.com

Anyone know how ?? Please help, or point me in the right direction thanks.