diff --git a/esup-opi-web-jsf-servlet/src/main/webapp/WEB-INF/web.xml b/esup-opi-web-jsf-servlet/src/main/webapp/WEB-INF/web.xml
index 71514ab6..dd513368 100644
--- a/esup-opi-web-jsf-servlet/src/main/webapp/WEB-INF/web.xml
+++ b/esup-opi-web-jsf-servlet/src/main/webapp/WEB-INF/web.xml
@@ -113,7 +113,7 @@
         </init-param>
         <init-param>
             <param-name>singleSession</param-name>
-            <param-value>false</param-value>
+            <param-value>true</param-value>
         </init-param>
     </filter>
     <filter-mapping>
diff --git a/esup-opi-web-jsf-servlet/src/main/webapp/stylesheets/gestionnaire/referentiels/seeCalendars.xhtml b/esup-opi-web-jsf-servlet/src/main/webapp/stylesheets/gestionnaire/referentiels/seeCalendars.xhtml
index 4030b598..a906336f 100644
--- a/esup-opi-web-jsf-servlet/src/main/webapp/stylesheets/gestionnaire/referentiels/seeCalendars.xhtml
+++ b/esup-opi-web-jsf-servlet/src/main/webapp/stylesheets/gestionnaire/referentiels/seeCalendars.xhtml
@@ -76,7 +76,8 @@
                                 <p:commandLink styleClass="ui-button ui-widget ui-state-default ui-corner-all"
                                                style="padding: .4em;"
                                                action="#{calendarController.goSeeOneCal}"
-                                               title="#{msgs['_.BUTTON.DISPLAY']}">
+                                               title="#{msgs['_.BUTTON.DISPLAY']}"
+                                               ajax="false">
                                     <div class="ui-button-icon-left ui-icon ui-icon-search" />
                                     <f:setPropertyActionListener value="#{calendarController.actionEnum.updateAction}"
                                                                  target="#{calendarController.actionEnum.whatAction}"/>
@@ -91,7 +92,8 @@
                                                    style="padding: .4em;" 
                                                    title="#{msgs['BUTTON.UPDATE']}" 
                                                    action="#{calendarController.goUpdateCal}"
-                                                   rendered="#{managedAccess.updateAuthorized}">
+                                                   rendered="#{managedAccess.updateAuthorized}"
+                                                   ajax="false">
                                     <div class="ui-button-icon-left ui-icon ui-icon-pencil" />
                                     <f:setPropertyActionListener value="#{calendarController.actionEnum.updateAction}"
                                                                  target="#{calendarController.actionEnum.whatAction}"/>
@@ -111,8 +113,8 @@
                                     <div class="ui-button-icon-left ui-icon ui-icon-minus" />
                                     <f:setPropertyActionListener value="#{calendar}" 
                                                                     target="#{calendarController.beanCalendar.calendar}"/>
-        			    		</p:commandLink>
-        					</p:column>
+        			</p:commandLink>
+        		</p:column>
                         </p:dataTable>
                         <p:blockUI block="seeCalendrierForm" trigger="calendarsData">
                             <p:graphicImage library="images" name="ajax-loader.gif"/>
@@ -122,4 +124,4 @@
             </div>
         </div>
     </ui:define>
-</ui:composition>
\ No newline at end of file
+</ui:composition>
diff --git a/esup-opi-web-jsf-servlet/src/main/webapp/stylesheets/gestionnaire/referentiels/seeOneCalendar.xhtml b/esup-opi-web-jsf-servlet/src/main/webapp/stylesheets/gestionnaire/referentiels/seeOneCalendar.xhtml
index 56262f80..bf00f90b 100644
--- a/esup-opi-web-jsf-servlet/src/main/webapp/stylesheets/gestionnaire/referentiels/seeOneCalendar.xhtml
+++ b/esup-opi-web-jsf-servlet/src/main/webapp/stylesheets/gestionnaire/referentiels/seeOneCalendar.xhtml
@@ -38,11 +38,12 @@
     								<p:commandButton value="#{msgs['_.BUTTON.UPDATE']}"
     									immediate="true"
     									action="#{calendarController.goUpdateCal}"
-    									rendered="#{managedAccess.updateAuthorized}" >
+    									rendered="#{managedAccess.updateAuthorized}"
+                                                                        ajax="false">
     									<f:setPropertyActionListener value="#{calendarController.actionEnum.updateAction}" target="#{calendarController.actionEnum.whatAction}" />
     								</p:commandButton>
     								<p:commandButton value="#{msgs['_.BUTTON.BACK']}" immediate="true"
-    									action="#{calendarController.goSeeAllCal}" />
+    									action="#{calendarController.goSeeAllCal}" ajax="false" />
     							</h:panelGroup>
     						</h:panelGrid>
     					</div>