Global properties are available in every script, and are visible to every Timeline and scope in your document. For example, global properties allow access to the timelines of other loaded movie clips, both relative (_parent) and absolute (_root). They also let you restrict (this) or expand (super) scope. And, you can use global properties to adjust runtime settings like screen reader accessibility, playback quality, and sound buffer size.
Global Properties summary
|_accProps||Lets you control screen reader accessibility options for SWF files, movie clips, buttons, dynamic text fields, and input text fields at runtime.|
|_focusrect||Property (global); specifies whether a yellow rectangle appears around ...|