Referencing the stage from inner classes. Singleton method.

Main.as

package
{
	import flash.display.MovieClip;
	import Pages;
	
	public class Main extends MovieClip
	{
		public static var instance:Main;
		
		public function Main()
		{
			instance = this;
			var pages = new Pages();
		}
		
		static public function getInstance()
		{
			// Beause this is base class, a new Main should never really be created.
			if(instance == null) instance = new Main();
			return instance;
		}
		
	}
}