     import flare.analytics.graph.ShortestPaths;
     import flare.display.DirtySprite;
     import flare.display.TextSprite;
+    import flare.display.RectSprite;
     import flare.query.methods.update;
     import flare.vis.Visualization;
     import flare.vis.controls.ClickControl;

                    previously_clicked_node=null;
                    vis.update();
                }));

            // add mouse-over details
            vis.controls.add(new HoverControl(NodeSprite, HoverControl.MOVE_TO_FRONT, function(evt:SelectionEvent):void
                {

            layout();
            vis.update();
        }
        
        private function create_toggle_rect_background():void
        {
			_toggle_rect_background = new RectSprite(0,0, 600, 30);
			_toggle_rect_background.fillColor = 0XFFF1F1F1;
			_toggle_rect_background.lineColor = 0XFFF1F1F1;
			_toggle_rect_background.cornerSize = 10;
			addChild(_toggle_rect_background);
    	}

		private function hideInfoForPrinting():void
		{
