diff --git a/libsrc/ffdec_lib/testdata/run_as3/RunMain.as b/libsrc/ffdec_lib/testdata/run_as3/RunMain.as
index 43b6cb17a..c8e8c8fab 100644
--- a/libsrc/ffdec_lib/testdata/run_as3/RunMain.as
+++ b/libsrc/ffdec_lib/testdata/run_as3/RunMain.as
@@ -1,44 +1,57 @@
-package  {
-	
-	import flash.display.*;
-	import flash.text.TextField;
-	import flash.events.MouseEvent;
-	
-	public class RunMain extends MovieClip {
-		
-		private var myTextBox:TextField;
-		
-		public function RunMain() {
-			myTextBox = new TextField();    
-			myTextBox.text = "";    
-			addChild(myTextBox);  
-
-			var rectangleShape:Shape = new Shape();
-			rectangleShape.graphics.beginFill(0xFF0000);
-			rectangleShape.graphics.drawRect(0, 0, 100, 25);
-			rectangleShape.graphics.endFill();
-
-			var btnTextBox:TextField = new TextField();    
-			btnTextBox.text = "EXECUTE";    
-
-			var simpleButtonSprite:Sprite = new Sprite();
-			simpleButtonSprite.name = "simpleButtonSprite";
-			simpleButtonSprite.addChild(rectangleShape);
-			simpleButtonSprite.addChild(btnTextBox);
-
-			var simpleButton:SimpleButton = new SimpleButton();
-			simpleButton.upState = simpleButtonSprite;
-			simpleButton.overState = simpleButtonSprite;
-			simpleButton.downState = simpleButtonSprite;
-			simpleButton.hitTestState = simpleButtonSprite;
-			simpleButton.x = 200;
-			simpleButton.y = 100;
-			simpleButton.addEventListener(MouseEvent.CLICK, this.clickListener);
-			addChild(simpleButton);
-		}
-		
-		function clickListener(e:MouseEvent){
-			myTextBox.text = "Result:" + Run.run();
-		}
-	}
-}
+package  {
+	
+	import flash.display.*;
+	import flash.text.TextField;
+	import flash.events.MouseEvent;
+	import flash.external.ExternalInterface;
+	
+	public class RunMain extends MovieClip {
+		
+		private var myTextBox:TextField;
+		
+		public function RunMain() {
+			myTextBox = new TextField();    
+			myTextBox.text = "";
+			myTextBox.width = 400;
+			addChild(myTextBox);  
+
+			var rectangleShape:Shape = new Shape();
+			rectangleShape.graphics.beginFill(0xFF0000);
+			rectangleShape.graphics.drawRect(0, 0, 100, 25);
+			rectangleShape.graphics.endFill();
+
+			var btnTextBox:TextField = new TextField();    
+			btnTextBox.text = "EXECUTE";    
+
+			var simpleButtonSprite:Sprite = new Sprite();
+			simpleButtonSprite.name = "simpleButtonSprite";
+			simpleButtonSprite.addChild(rectangleShape);
+			simpleButtonSprite.addChild(btnTextBox);
+
+			var simpleButton:SimpleButton = new SimpleButton();
+			simpleButton.upState = simpleButtonSprite;
+			simpleButton.overState = simpleButtonSprite;
+			simpleButton.downState = simpleButtonSprite;
+			simpleButton.hitTestState = simpleButtonSprite;
+			simpleButton.x = 200;
+			simpleButton.y = 100;
+			simpleButton.addEventListener(MouseEvent.CLICK, this.clickListener);
+			addChild(simpleButton);
+			
+			ExternalInterface.addCallback("testFunc", testFunction);
+		}
+		
+		function testFunction() {
+			try {
+				var result = Run.run();
+				return "Result:" + result + " Type:" + typeof(result);
+			} catch (ex:Error) {
+				return "Error:" + ex;
+			}
+		}
+
+		function clickListener(e:MouseEvent) {
+			myTextBox.text = testFunction();
+		}
+	}
+}