[ZackMercury]

Так вы сможете использовать переменную в любом месте класса или в классе, наследующем данный класс:

public class fishka5 extends MovieClip
	{
		protected var originalPosition:Point;
      protected var 
kft_zamkn5:Number;
//or integer if your variable is always an int
		public function fishka5()
		{
			originalPosition = new Point (x,y);
			buttonMode = true;
			addEventListener ( MouseEvent.MOUSE_DOWN, down );
		}
			protected function down( event:MouseEvent ):void
		{
			parent.addChild( this );
			startDrag();
			stage.addEventListener( MouseEvent.MOUSE_UP, stageUp );
		}
			protected function stageUp( event:MouseEvent ):void
		{
			stage.removeEventListener( MouseEvent.MOUSE_UP, stageUp );
			stopDrag();
 
			if ( dropTarget )
				{	
					var slot = dropTarget.parent.name;
					if ( slot == "e1" ){
						kft_zamkn5 = -1;
					}
					else if ( slot == "d1" ){
						kft_zamkn5 = 0;
					}
					buttonMode = false;
					removeEventListener ( MouseEvent.MOUSE_DOWN, down );
				} else {
							returnToOriginalPosition();
						}
		}
			protected function returnToOriginalPosition():void
				{
					x = originalPosition.x;
					y = originalPosition.y;
				}
	}
}

Добавлено через 3 минуты
А так в любом месте программы:

public class fishka5 extends MovieClip
	{
		protected var originalPosition:Point;
      public var kft_zamkn5:Number;
//or integer, if your variable is always an int.
		public function fishka5()
		{
			originalPosition = new Point (x,y);
			buttonMode = true;
			addEventListener ( MouseEvent.MOUSE_DOWN, down );
		}
			protected function down( event:MouseEvent ):void
		{
			parent.addChild( this );
			startDrag();
			stage.addEventListener( MouseEvent.MOUSE_UP, stageUp );
		}
			protected function stageUp( event:MouseEvent ):void
		{
			stage.removeEventListener( MouseEvent.MOUSE_UP, stageUp );
			stopDrag();
 
			if ( dropTarget )
				{	
					var slot = dropTarget.parent.name;
					if ( slot == "e1" ){
						kft_zamkn5 = -1;
					}
					else if ( slot == "d1" ){
						kft_zamkn5 = 0;
					}
					buttonMode = false;
					removeEventListener ( MouseEvent.MOUSE_DOWN, down );
				} else {
							returnToOriginalPosition();
						}
		}
			protected function returnToOriginalPosition():void
				{
					x = originalPosition.x;
					y = originalPosition.y;
				}
	}
}