Index: lams_monitoring/web/includes/javascript/monitorLesson.js
===================================================================
diff -u -r40de3afab4e8d589660daffb6efd6e568e87f8fa -r73590f6d18d917c1daa2a1cfedab5d807dbcef05
--- lams_monitoring/web/includes/javascript/monitorLesson.js	(.../monitorLesson.js)	(revision 40de3afab4e8d589660daffb6efd6e568e87f8fa)
+++ lams_monitoring/web/includes/javascript/monitorLesson.js	(.../monitorLesson.js)	(revision 73590f6d18d917c1daa2a1cfedab5d807dbcef05)
@@ -330,15 +330,20 @@
 }			
 
 function applyStateChange(state, method, newLessonEndDate) {
-    var params = $("#lesson-state-form").serialize();
+	var params = {
+		'lessonID'      : lessonId
+	};
+	params[csrfTokenName] = csrfTokenValue;
+
 	if (newLessonEndDate) {
-	    params += "&lessonEndDate=" + token;
+		params.lessonEndDate = newLessonEndDate;
 	}
 	
 	$.ajax({
 		url : LAMS_URL + 'monitoring/monitoring/' + method + ".do",
-		type: "POST",
 		data: params,
+		type: "POST",
+		cache : false,
 	    success: function() {
 			if (state == 7) {
 				// user chose to finish the lesson, close monitoring and refresh the lesson list
Index: lams_monitoring/web/monitor.jsp
===================================================================
diff -u -r328b2d5068eb7b9c271f43e55b3f19a05733312b -r73590f6d18d917c1daa2a1cfedab5d807dbcef05
--- lams_monitoring/web/monitor.jsp	(.../monitor.jsp)	(revision 328b2d5068eb7b9c271f43e55b3f19a05733312b)
+++ lams_monitoring/web/monitor.jsp	(.../monitor.jsp)	(revision 73590f6d18d917c1daa2a1cfedab5d807dbcef05)
@@ -387,10 +387,6 @@
 												<option value="-1"><fmt:message key="lesson.select.state"/></option>
 											</select>
 											<span id="lessonStateApply">
-												<csrf:form id="lesson-state-form" method="post" action="">
-													<input type="hidden" name="lessonID" value="${lesson.lessonID}"/>
-												</csrf:form>
-												
 												<button type="button" class="lessonManageField btn btn-xs btn-primary"
 														onClick="javascript:changeLessonState()"
 														title='<fmt:message key="lesson.change.state.tooltip"/>'>