Index: lams_monitoring/web/tblmonitor/tblmonitor.jsp
===================================================================
diff -u -re9b2b083ad3802e79ed5fbf51ae98967575c198d -ra81b922d6cf6198a28e82e65143d75e22059c267
--- lams_monitoring/web/tblmonitor/tblmonitor.jsp	(.../tblmonitor.jsp)	(revision e9b2b083ad3802e79ed5fbf51ae98967575c198d)
+++ lams_monitoring/web/tblmonitor/tblmonitor.jsp	(.../tblmonitor.jsp)	(revision a81b922d6cf6198a28e82e65143d75e22059c267)
@@ -80,6 +80,11 @@
 				lastTabMethod = method;
 				lastTabToolContentID = toolContentID;
 			}
+
+			if (!method) {
+				// we should not have this situation!
+				return;
+			}
 			
 			var url = "<lams:LAMSURL/>monitoring/tblmonitor/"
 			var options = {};