diff -u -r1.1 -r1.2
--- TrackingVolumeTest.java	21 Nov 2007 01:10:51 -0000	1.1
+++ TrackingVolumeTest.java	21 Nov 2007 01:20:50 -0000	1.2
@@ -15,6 +15,13 @@

 import org.lcsim.detector.IPhysicalVolume;
 import org.lcsim.detector.solids.Tube;
 

+/**
+ * 
+ * Shows how to access the detector's tracking volume from an {@link org.lcsim.util.Driver}.
+ * 
+ * @author Jeremy McCormick
+ * @version $Id: TrackingVolumeTest.java,v 1.2 2007/11/21 01:20:50 jeremy Exp $
+ */

 public class TrackingVolumeTest
 extends TestCase
 {

@@ -35,6 +42,9 @@

 	class TrackingVolumeAccessDriver
 	extends Driver
 	{

+		/**
+		 * This method is called when a new detector is loaded. 
+		 */

 		protected void detectorChanged(Detector detector)
 		{
 			StringBuffer buff = new StringBuffer();