Switch lock settings "disable webcams" and "webcam only for moderators"...

Switch lock settings "disable webcams" and "webcam only for moderators" states, only one of them can be enabled at the same time.

bigbluebutton-client/src/org/bigbluebutton/main/views/LockSettings.mxml

@@ -69,6 +69,21 @@ with BigBlueButton; if not, see <http://www.gnu.org/licenses/>.
 			private function onCancelClicked():void {
 				PopUpUtil.removePopUp(this);
 			}
+			
+			protected function chkDisableWebcam_changeHandler(event:Event):void
+			{
+				if (chkDisableWebcam.selected) {
+					chkwebcamsOnlyForModerator.selected = false;
+				}
+			}
+			
+			protected function chkwebcamsOnlyForModerator_changeHandler(event:Event):void
+			{
+				if (chkwebcamsOnlyForModerator.selected) {
+					chkDisableWebcam.selected = false;
+				}
+			}
+			
 		]]>
 	</fx:Script>
 	
@@ -95,7 +110,7 @@ with BigBlueButton; if not, see <http://www.gnu.org/licenses/>.
 			<mx:Label width="70%" styleName="lockSettingsDefaultLabelStyle" 
                 text="{ResourceUtil.getInstance().getString('bbb.lockSettings.webcam')}" />
 			<mx:HBox width="30%" styleName="lockSettingsCheckboxColumn">
-				<mx:CheckBox id="chkDisableWebcam" selected="{disableCam}" />
+				<mx:CheckBox id="chkDisableWebcam" selected="{disableCam}" change="chkDisableWebcam_changeHandler(event)"/>
 			</mx:HBox>
 		</mx:HBox>
 
@@ -103,7 +118,7 @@ with BigBlueButton; if not, see <http://www.gnu.org/licenses/>.
 			<mx:Label width="70%" styleName="lockSettingsDefaultLabelStyle" 
                 text="{ResourceUtil.getInstance().getString('bbb.lockSettings.webcamsOnlyForModerator')}" />
 			<mx:HBox width="30%" styleName="lockSettingsCheckboxColumn">
-				<mx:CheckBox id="chkwebcamsOnlyForModerator" selected="{webcamsOnlyForModerator}" />
+				<mx:CheckBox id="chkwebcamsOnlyForModerator" selected="{webcamsOnlyForModerator}" change="chkwebcamsOnlyForModerator_changeHandler(event)"/>
 			</mx:HBox>
 		</mx:HBox>