Index: lams_central/src/flash/org/lamsfoundation/lams/authoring/cv/CanvasController.as
===================================================================
diff -u -rbe876e40aeece90c5bb30d5e0d618f8a433558a7 -r45848c679d9407f67dc843cd61bad14f07a52378
--- lams_central/src/flash/org/lamsfoundation/lams/authoring/cv/CanvasController.as	(.../CanvasController.as)	(revision be876e40aeece90c5bb30d5e0d618f8a433558a7)
+++ lams_central/src/flash/org/lamsfoundation/lams/authoring/cv/CanvasController.as	(.../CanvasController.as)	(revision 45848c679d9407f67dc843cd61bad14f07a52378)
@@ -39,6 +39,7 @@
 	private var _canvasModel:CanvasModel;
 	private var _canvasView:CanvasView;
 	private var _pi:PropertyInspectorNew;
+	private var _isBusy:Boolean;
 	
 	/**
 	* Constructor
@@ -51,7 +52,7 @@
 		_canvasModel = CanvasModel(getModel());
 		_canvasView = CanvasView(getView());
 		_pi = new PropertyInspectorNew();
-		
+		_isBusy = false;
 	}
    
     public function activityClick(ca:Object):Void{
@@ -383,8 +384,20 @@
 		
 	}
    
+	private function setBusy():Void{
+		if(_isBusy){
+			//Debugger.log('!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!',1,'checkBusy','org.lamsfoundation.lams.common.util.Hashtable');
+			//Debugger.log('!!!!!!!!!!!!!!!!!!!! HASHTABLE ACCESED WHILE BUSY !!!!!!!!!!!!!!!!',1,'checkBusy','org.lamsfoundation.lams.common.util.Hashtable');
+			//Debugger.log('!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!',1,'checkBusy','org.lamsfoundation.lams.common.util.Hashtable');
+		}
+		_isBusy=true;
+	}
 	
+	private function clearBusy():Void{
+		_isBusy=false;
+	}
 	
+	
 	/**
 	 * Transition Properties OK Handler
 	 * @usage