text: // Register a message completion builder for OVERLAY_SHOW
  cmapi.map.message.complete.builder[emp.intents.control.OVERLAY_SHOW] = {
      
      // oTransaction will have a transaction property
      build: function (oTransaction) {
  
          var oMsgCompletion = new cmapi.typeLibrary.MessageComplete(oTransaction);
          var oOverlay = oTransaction.items[0];
          
          if (oOverlay)
          {
              var oDetails = {
                  overlayId: oOverlay.overlayId
              };
  
              oMsgCompletion.details = oDetails;
          }
  
          return oMsgCompletion;
      }
  };
  