MACROMEDIA FLASH 8-LEARNING ACTIONSCRIPT 2.0 IN FLASH Manual page 632

9.
Select Control > Test Movie to test your code.
The video loads and an animating bar and changing text values communicate the loading
progress. If these elements overlap your video, move the video object on the Stage. You
can customize the color of the progress bar by modifying
previous code snippet.
If your progress bar loads instantly, the video is cached on your hard disk (either from
testing this example already, or loading it in a different procedure). If this occurs,
upload a FLV file to your server and load it instead.
You can find a sample source file that uses scripted animation to create a progress bar
animation. Find tweenProgress.fla in the Samples folder on your hard disk.
In Windows, browse to boot drive\Program Files\Macromedia\Flash 8\Samples and
Tutorials\Samples\ActionScript\Tween ProgressBar.
On the Macintosh, browse to Macintosh HD/Applications/Macromedia Flash 8/Samples
and Tutorials/Samples/ActionScript/Tween ProgressBar.
632 Working with Images, Sound, and Video
and
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in