diff --git a/plugins/TestingList.java b/plugins/TestingList.java
index b2fcb76..81a3575 100644
--- a/plugins/TestingList.java
+++ b/plugins/TestingList.java
@@ -27,10 +27,6 @@ import javax.swing.JFrame;
 import javax.swing.JPanel;
 import javax.swing.table.DefaultTableModel;
 
-
-/**
- *
- */
 public class TestingList extends Panel {
     
     Task task = new Task() {
@@ -40,19 +36,47 @@ public class TestingList extends Panel {
                 return true;
         }
     };
+    
     @Override
     protected JPanel create() {        
         return new NetbeansPluginPanel();     
     }    
 
+    //listen to script end of execution and get return value
+    @Override
+    protected void onExecutedFile(String fileName) {
+        try {
+                switch(fileName){
+                    case "power-supply":
+                                     Object ret = eval("ret");
+                                    if (ret != null) {
+                                         SwingUtils.showMessage(getComponent(), "", ret.toString() + " - " + ret.getClass().getName());
+                                         //showResult(ret.toString());
+                                    }
+                    break;
+            }
+        } 
+        catch (Exception ex) {
+            SwingUtils.showException(getComponent(), ex);
+        }                    
+    }
+
+
+    
+    
+    
     public class NetbeansPluginPanel extends MonitoredPanel {
 
         public NetbeansPluginPanel() {
-            initComponents();            
-            buildGUI();
-            hookUpEvents();
+            initComponents();     
+            buildTable();
         }
         @SuppressWarnings("unchecked")
+
+    public void showResult(String res){
+        txtOutput.setText(res);
+    }
+    
     // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
     private void initComponents() {
 
@@ -141,50 +165,7 @@ public class TestingList extends Panel {
 
         DefaultTableModel model = new DefaultTableModel(data, columnNames);
     
-     }
-    
-        
-    //dynamically added checkbboxes
-      JButton remove;
-      JButton appear;
-      JCheckBox cb[]=new JCheckBox[10]; 
-
-       public void buildGUI() {
-           JFrame fr=new JFrame();
-           JPanel p=new JPanel();
-           remove=new JButton("remove");
-           appear=new JButton("appear");
-             for(int i=0;i<10;i++) {
-                cb[i]=new JCheckBox("checkbox:"+i);
-                cb[i].setVisible(false);
-             }
-           fr.add(p);
-           p.add(remove);
-           p.add(appear);
-           for(int i=0;i<10;i++) {
-             p.add(cb[i]);
-           }
-           fr.setVisible(true);
-           fr.setSize(400,400);
-        }
-
-        public void hookUpEvents() {
-           remove.addActionListener(new ActionListener() {
-                public void actionPerformed(ActionEvent ae) {
-                    for(int i=0;i<10;i++) {
-                        cb[i].setVisible(false);
-                     }
-                 }
-           });
-
-           appear.addActionListener(new ActionListener() {
-                public void actionPerformed(ActionEvent ae) {
-                   for(int i=0;i<10;i++) {
-                      cb[i].setVisible(true);
-                    }
-                }
-           });
-         }    
+    }
     
     }
 }
diff --git a/plugins/TestingPanel.java b/plugins/TestingPanel.java
index fc3cf8d..b371d8b 100644
--- a/plugins/TestingPanel.java
+++ b/plugins/TestingPanel.java
@@ -59,6 +59,8 @@ public class TestingPanel extends Panel {
         motorPanel.setDevice(motor);        
     }
     
+    //listen to script end of execution and get return value
+    @Override
     protected void onExecutedFile(String fileName) {
         try {
                 switch(fileName){
@@ -353,10 +355,7 @@ public class TestingPanel extends Panel {
                 args.put("relative", var1);
                 args.put("steps", var2);
                 run("power-supply", args);
-                Object ret = eval("ret");
-                //try to print the result
-                txtTestPSRes.setText(ret.toString());
-                
+             
 
                 //evalAsync("run('args', locals = {'relative':" + (var1 ? "True" :"False")  + ", 'steps':" + var2 + "})");