Index: lams_monitoring/web/includes/javascript/monitorLesson.js
===================================================================
diff -u -r35ee206c5d47a350ae59a47321a2c11a96af6f04 -r40d574e90c45111f7235398a683c4bf2ea889d20
--- lams_monitoring/web/includes/javascript/monitorLesson.js	(.../monitorLesson.js)	(revision 35ee206c5d47a350ae59a47321a2c11a96af6f04)
+++ lams_monitoring/web/includes/javascript/monitorLesson.js	(.../monitorLesson.js)	(revision 40d574e90c45111f7235398a683c4bf2ea889d20)
@@ -1436,7 +1436,11 @@
 
 function selectAllInDialogList(listId) {
 	var targetState = $('#' + listId + 'SelectAll').is(':checked') ? 'checked' : null;
-	$('#' + listId + 'List input').attr('checked', targetState);
+	$('#' + listId + 'List input').each(function(){
+		if (!$(this).is(':disabled')) {
+			$(this).attr('checked', targetState);
+		}		
+	});
 }
 
 
Index: lams_monitoring/web/monitor.jsp
===================================================================
diff -u -rf992a141ad8dac72d1db43fbe4a7ed460a093dd0 -r40d574e90c45111f7235398a683c4bf2ea889d20
--- lams_monitoring/web/monitor.jsp	(.../monitor.jsp)	(revision f992a141ad8dac72d1db43fbe4a7ed460a093dd0)
+++ lams_monitoring/web/monitor.jsp	(.../monitor.jsp)	(revision 40d574e90c45111f7235398a683c4bf2ea889d20)
@@ -400,6 +400,18 @@
 				</td>
 			</tr>
 			<tr>
+				<td>
+					<input type="checkbox" id="classLearnerSelectAll"
+						   onChange="javascript:selectAllInDialogList('classLearner')" />
+					<fmt:message key="learner.group.select.all"/>
+				</td>
+				<td>
+					<input type="checkbox" id="classMonitorSelectAll"
+						   onChange="javascript:selectAllInDialogList('classMonitor')" />
+					<fmt:message key="learner.group.select.all"/>
+				</td>
+			</tr>
+			<tr>
 				<td id="classLearnerList" class="dialogList">
 				</td>
 				<td id="classMonitorList" class="dialogList">