diff --git a/example_scripts/dancefloor.js b/example_scripts/dancefloor.js
index 78f5ed4..07ffc15 100644
--- a/example_scripts/dancefloor.js
+++ b/example_scripts/dancefloor.js
@@ -5,22 +5,25 @@ Drone.extend('dancefloor',function(width,length)
         width = 5;
     if (typeof length == "undefined")
         length = width;
+	 //
+	 // create a separate Drone object to lay down disco tiles
+	 //
     var disco = new Drone(this.x,this.y, this.z, this.dir);
+	 //
     // under-floor lighting
+	 //
     disco.down().box(89,width,1,length).up();
     var floorTiles = [35,35,'35:1','35:2','35:3','35:4','35:4','35:4','35:6',20,20];
     //
     // strobe gets called in a java thread
     //
-    var strobe = function(){
-        disco.rand(floorTiles,width,1,length);
-    };
-    thread = new java.lang.Thread(function(){
+	 var strobe = function(){
         while(true){
-            strobe();
+				disco.rand(floorTiles,width,1,length);
             java.lang.Thread.sleep(1000);
         }
-    });
+	 };
+	 var thread = new java.lang.Thread(strobe);
     thread.start();
     return this;
 });