// To see the VRML string used to create the node, uncomment
  // the 'print' line and look in the console window.
  // 'xform' contains the parsed version of the VRML string.
  // createVrmlFromString is a method in the Browser object.
  // Once the VRML is parsed, it can be added to the scene
  // geometry with the addChildren method (event) of the
  // appropriate grouping node (CrystalNode in this case).
  //      print (tstr);
          xform = new MFNode();
          xform = Browser.createVrmlFromString(tstr);
          CrystalNode.addChildren = xform;