 import mx.events.ScrollEventDetail;
 import mx.managers.IFocusManager;
 import mx.managers.IFocusManagerComponent;
+import mx.managers.ISystemManager2;
 import mx.styles.StyleManager;
 import mx.collections.ItemWrapper;
 import mx.collections.ModifiedCollectionView;

    private function itemEditorItemEditBeginHandler(event:ListEvent):void
    {
        // trace("listening for deactivate");
        // weak reference to stage
        stage.addEventListener(Event.DEACTIVATE, deactivateHandler, false, 0, true);

        if (!event.isDefaultPrevented() && listItems[actualRowIndex][actualColIndex].data != null)
        {

        DisplayObject(itemEditorInstance).addEventListener(KeyboardEvent.KEY_DOWN, editorKeyDownHandler);
        // we disappear on any mouse down outside the editor
        // use weak reference
        systemManager.addEventListener(MouseEvent.MOUSE_DOWN, editorMouseDownHandler, true, 0, true);

    }

