What is the use of depth? How many methods for depth are available? - Flash

What is the use of depth? How many methods for depth are available?

- Depth works similar to layer.

- Depth is used for determining order of stacking objects.

- SwapDepths (), getNextHighestDepth (), getInstanceAtDepth () are methods.

- Depth Manages class is available to allow for managing the depth assignments of a component, like a movie clip.

- Reserved depths can also be managed in a highest-depth clip on root at system level services.