 			if (index < tree.verticalScrollPosition ||
 				index >= tree.verticalScrollPosition + tree.rowCount)
 			{
-				accState |= STATE_SYSTEM_INVISIBLE;
+				accState |= AccConst.STATE_SYSTEM_INVISIBLE;
 			}
 			else
 			{
-				accState |= STATE_SYSTEM_SELECTABLE;
+				accState |= AccConst.STATE_SYSTEM_SELECTABLE;
 
 				var item:Object = getItemAt(index);
 
 				if (item && tree.dataDescriptor.isBranch(item, tree.dataProvider))
 				{
 					if (tree.isItemOpen(item))
-						accState |= STATE_SYSTEM_EXPANDED;
+						accState |= AccConst.STATE_SYSTEM_EXPANDED;
 					else
-						accState |= STATE_SYSTEM_COLLAPSED;
+						accState |= AccConst.STATE_SYSTEM_COLLAPSED;
 				}
 
 				var renderer:IListItemRenderer =
 					tree.itemToItemRenderer(item);
 
 				if (renderer != null && tree.isItemSelected(renderer.data))
-					accState |= STATE_SYSTEM_SELECTED | STATE_SYSTEM_FOCUSED;
+					accState |= AccConst.STATE_SYSTEM_SELECTED | AccConst.STATE_SYSTEM_FOCUSED;
 			}
 		}
 		return accState;

	{
		super(master);

		role = 0x23; // ROLE_SYSTEM_OUTLINE
	}

	//--------------------------------------------------------------------------


	//--------------------------------------------------------------------------
	//
	//  Class methods
	//
	//--------------------------------------------------------------------------
