The layer elements describe flash movie layers. Each movie layer contains one or several frames.
The order, in which the movie layers are introduced in the ActiveSWF XML file, defines the order the movie objects are displayed on screen. Objects described in the last layer will be displayed on the foreground. And vice versa, objects in the first layer described will appear in the background.
<layer>
<!-- Defining layer frames -->
...
</layer>
frame element