diff --git a/htdocs/bookcal/admin/availabilities_extrafields.php b/htdocs/bookcal/admin/availabilities_extrafields.php
index 8241073f3fc..10a9a4bcd37 100644
--- a/htdocs/bookcal/admin/availabilities_extrafields.php
+++ b/htdocs/bookcal/admin/availabilities_extrafields.php
@@ -67,7 +67,7 @@ $textobject = $langs->transnoentitiesnoconv("Availabilities");
 $help_url = '';
 $page_name = "BookCalSetup";
 
-llxHeader('', $langs->trans("BookCalSetup"), $help_url);
+llxHeader('', $langs->trans("BookCalSetup"), $help_url, '', 0, 0, '', '', '', 'mod-bookcal page-admin_availabilities_extrafields');
 
 
 $linkback = '<a href="'.DOL_URL_ROOT.'/admin/modules.php?restore_lastsearch_values=1">'.$langs->trans("BackToModuleList").'</a>';
diff --git a/htdocs/bookcal/admin/calendar_extrafields.php b/htdocs/bookcal/admin/calendar_extrafields.php
index 79eabea10c9..582997fe3d0 100644
--- a/htdocs/bookcal/admin/calendar_extrafields.php
+++ b/htdocs/bookcal/admin/calendar_extrafields.php
@@ -68,7 +68,7 @@ $textobject = $langs->transnoentitiesnoconv("Calendar");
 $help_url = '';
 $page_name = "BookCalSetup";
 
-llxHeader('', $langs->trans("BookCalSetup"), $help_url);
+llxHeader('', $langs->trans("BookCalSetup"), $help_url, '', 0, 0, '', '', '', 'mod-bookcal page-admin_calender_extrafields');
 
 
 $linkback = '<a href="'.DOL_URL_ROOT.'/admin/modules.php?restore_lastsearch_values=1">'.$langs->trans("BackToModuleList").'</a>';
diff --git a/htdocs/bookcal/admin/setup.php b/htdocs/bookcal/admin/setup.php
index f67819497c3..421a72b13e3 100644
--- a/htdocs/bookcal/admin/setup.php
+++ b/htdocs/bookcal/admin/setup.php
@@ -163,7 +163,7 @@ $form = new Form($db);
 $help_url = '';
 $page_name = "BookCalSetup";
 
-llxHeader('', $langs->trans($page_name), $help_url);
+llxHeader('', $langs->trans($page_name), $help_url, '', 0, 0, '', '', '', 'mod-bookcal page-admin_setup');
 
 // Subheader
 $linkback = '<a href="'.($backtopage ? $backtopage : DOL_URL_ROOT.'/admin/modules.php?restore_lastsearch_values=1').'">'.$langs->trans("BackToModuleList").'</a>';
diff --git a/htdocs/bookcal/availabilities_agenda.php b/htdocs/bookcal/availabilities_agenda.php
index 082c2f93698..4de8cdae284 100644
--- a/htdocs/bookcal/availabilities_agenda.php
+++ b/htdocs/bookcal/availabilities_agenda.php
@@ -144,7 +144,7 @@ $form = new Form($db);
 if ($object->id > 0) {
 	$title = $langs->trans("Agenda");
 	$help_url = 'EN:Module_Agenda_En|DE:Modul_Terminplanung';
-	llxHeader('', $title, $help_url);
+	llxHeader('', $title, $help_url, '', 0, 0, '', '', '', 'mod-bookcal page-card_availabilities_agenda');
 
 	if (!empty($conf->notification->enabled)) {
 		$langs->load("mails");
diff --git a/htdocs/bookcal/availabilities_card.php b/htdocs/bookcal/availabilities_card.php
index bcb42c44e12..d3efc65056f 100644
--- a/htdocs/bookcal/availabilities_card.php
+++ b/htdocs/bookcal/availabilities_card.php
@@ -223,7 +223,7 @@ $formproject = new FormProjets($db);
 
 $title = $langs->trans("Availabilities");
 $help_url = '';
-llxHeader('', $title, $help_url);
+llxHeader('', $title, $help_url, '', 0, 0, '', '', '', 'mod-bookcal page-card_availabilities');
 
 // Example : Adding jquery code
 // print '<script type="text/javascript">
diff --git a/htdocs/bookcal/availabilities_contact.php b/htdocs/bookcal/availabilities_contact.php
index 0b6c992de8b..7f094dd6fad 100644
--- a/htdocs/bookcal/availabilities_contact.php
+++ b/htdocs/bookcal/availabilities_contact.php
@@ -116,7 +116,7 @@ if ($action == 'addcontact' && $permission) {
 $title = $langs->trans('Availabilities')." - ".$langs->trans('ContactsAddresses');
 $help_url = '';
 //$help_url='EN:Module_Third_Parties|FR:Module_Tiers|ES:Empresas';
-llxHeader('', $title, $help_url);
+llxHeader('', $title, $help_url, '', 0, 0, '', '', '', 'mod-bookcal page-card_availabilities_contact');
 
 $form = new Form($db);
 $formcompany = new FormCompany($db);
diff --git a/htdocs/bookcal/availabilities_document.php b/htdocs/bookcal/availabilities_document.php
index 27ecf64e926..c6c287f13f6 100644
--- a/htdocs/bookcal/availabilities_document.php
+++ b/htdocs/bookcal/availabilities_document.php
@@ -114,7 +114,7 @@ $form = new Form($db);
 $title = $langs->trans("Availabilities").' - '.$langs->trans("Files");
 $help_url = '';
 //$help_url='EN:Module_Third_Parties|FR:Module_Tiers|ES:Empresas';
-llxHeader('', $title, $help_url);
+llxHeader('', $title, $help_url, '', 0, 0, '', '', '', 'mod-bookcal page-card_availabilities_document');
 
 if ($object->id) {
 	/*
diff --git a/htdocs/bookcal/availabilities_list.php b/htdocs/bookcal/availabilities_list.php
index d9d4bedf525..e730be6ef7c 100644
--- a/htdocs/bookcal/availabilities_list.php
+++ b/htdocs/bookcal/availabilities_list.php
@@ -386,7 +386,7 @@ if ($num == 1 && getDolGlobalInt('MAIN_SEARCH_DIRECT_OPEN_IF_ONLY_ONE') && $sear
 // Output page
 // --------------------------------------------------------------------
 
-llxHeader('', $title, $help_url, '', 0, 0, $morejs, $morecss, '', 'bodyforlist');	// Can use also classforhorizontalscrolloftabs instead of bodyforlist for no horizontal scroll
+llxHeader('', $title, $help_url, '', 0, 0, $morejs, $morecss, '', 'bodyforlist mod-bookcal page-list_availabilities');	// Can use also classforhorizontalscrolloftabs instead of bodyforlist for no horizontal scroll
 
 // Example : Adding jquery code
 // print '<script type="text/javascript">
diff --git a/htdocs/bookcal/availabilities_note.php b/htdocs/bookcal/availabilities_note.php
index fbac83db11f..e2a6ccd7afb 100644
--- a/htdocs/bookcal/availabilities_note.php
+++ b/htdocs/bookcal/availabilities_note.php
@@ -101,7 +101,7 @@ $form = new Form($db);
 //$help_url='EN:Customers_Orders|FR:Commandes_Clients|ES:Pedidos de clientes';
 $help_url = '';
 $title = $langs->trans('Availabilities').' - '.$langs->trans("Notes");
-llxHeader('', $title, $help_url);
+llxHeader('', $title, $help_url, '', 0, 0, '', '', '', 'mod-bookcal page-card_availabilities_note');
 
 if ($id > 0 || !empty($ref)) {
 	$object->fetch_thirdparty();
diff --git a/htdocs/bookcal/bookcalindex.php b/htdocs/bookcal/bookcalindex.php
index 8248ca44308..cbb6ae1f74a 100644
--- a/htdocs/bookcal/bookcalindex.php
+++ b/htdocs/bookcal/bookcalindex.php
@@ -63,7 +63,7 @@ $max = getDolGlobalInt('MAIN_SIZE_SHORTLIST_LIMIT', 5);
 $form = new Form($db);
 $formfile = new FormFile($db);
 
-llxHeader("", $langs->trans("BookCalArea"));
+llxHeader("", $langs->trans("BookCalArea"), '', '', 0, 0, '', '', '', 'mod-bookcal page-index');
 
 print load_fiche_titre($langs->trans("BookCalArea"), '', 'fa-calendar-check');
 
diff --git a/htdocs/bookcal/booking_list.php b/htdocs/bookcal/booking_list.php
index b4ac4cabe1b..cc6fed974c2 100644
--- a/htdocs/bookcal/booking_list.php
+++ b/htdocs/bookcal/booking_list.php
@@ -110,7 +110,7 @@ $form = new Form($db);
 $now = dol_now();
 $title = $langs->trans('Calendar')." - ".$langs->trans('Bookings');
 
-llxHeader('', $title, $helpurl);
+llxHeader('', $title, $helpurl, '', 0, 0, '', '', '', 'mod-bookcal page-list');
 
 
 if ($object->id > 0) {
diff --git a/htdocs/bookcal/calendar_agenda.php b/htdocs/bookcal/calendar_agenda.php
index b9390ede6fc..e72b5e691a3 100644
--- a/htdocs/bookcal/calendar_agenda.php
+++ b/htdocs/bookcal/calendar_agenda.php
@@ -144,7 +144,7 @@ $form = new Form($db);
 if ($object->id > 0) {
 	$title = $langs->trans("Agenda");
 	$help_url = 'EN:Module_Agenda_En|DE:Modul_Terminplanung';
-	llxHeader('', $title, $help_url);
+	llxHeader('', $title, $help_url, '', 0, 0, '', '', '', 'mod-bookcal page-card_calendar_agenda');
 
 	if (isModEnabled('notification')) {
 		$langs->load("mails");
diff --git a/htdocs/bookcal/calendar_card.php b/htdocs/bookcal/calendar_card.php
index f9ca47c6edc..2093f412bd5 100644
--- a/htdocs/bookcal/calendar_card.php
+++ b/htdocs/bookcal/calendar_card.php
@@ -184,7 +184,7 @@ $formproject = new FormProjets($db);
 
 $title = $langs->trans("Calendar");
 $help_url = '';
-llxHeader('', $title, $help_url);
+llxHeader('', $title, $help_url, '', 0, 0, '', '', '', 'mod-bookcal page-card_calendar');
 
 // Example : Adding jquery code
 // print '<script type="text/javascript">
diff --git a/htdocs/bookcal/calendar_contact.php b/htdocs/bookcal/calendar_contact.php
index 5252a0f4d7c..5f95496c70f 100644
--- a/htdocs/bookcal/calendar_contact.php
+++ b/htdocs/bookcal/calendar_contact.php
@@ -118,7 +118,7 @@ if ($action == 'addcontact' && $permission) {
 $title = $langs->trans('Calendar')." - ".$langs->trans('ContactsAddresses');
 $help_url = '';
 //$help_url='EN:Module_Third_Parties|FR:Module_Tiers|ES:Empresas';
-llxHeader('', $title, $help_url);
+llxHeader('', $title, $help_url, '', 0, 0, '', '', '', 'mod-bookcal page-card_calendar_contact');
 
 $form = new Form($db);
 $formcompany = new FormCompany($db);
diff --git a/htdocs/bookcal/calendar_document.php b/htdocs/bookcal/calendar_document.php
index cb4a379c559..f08c52b3927 100644
--- a/htdocs/bookcal/calendar_document.php
+++ b/htdocs/bookcal/calendar_document.php
@@ -120,7 +120,7 @@ $form = new Form($db);
 $title = $langs->trans("Calendar").' - '.$langs->trans("Files");
 $help_url = '';
 //$help_url='EN:Module_Third_Parties|FR:Module_Tiers|ES:Empresas';
-llxHeader('', $title, $help_url);
+llxHeader('', $title, $help_url, '', 0, 0, '', '', '', 'mod-bookcal page-card_document');
 
 // Show tabs
 $head = calendarPrepareHead($object);
diff --git a/htdocs/bookcal/calendar_list.php b/htdocs/bookcal/calendar_list.php
index 7fb13145b0b..75079272459 100644
--- a/htdocs/bookcal/calendar_list.php
+++ b/htdocs/bookcal/calendar_list.php
@@ -382,7 +382,7 @@ if ($num == 1 && getDolGlobalInt('MAIN_SEARCH_DIRECT_OPEN_IF_ONLY_ONE') && $sear
 // Output page
 // --------------------------------------------------------------------
 
-llxHeader('', $title, $help_url, '', 0, 0, $morejs, $morecss, '', 'bodyforlist');	// Can use also classforhorizontalscrolloftabs instead of bodyforlist for no horizontal scroll
+llxHeader('', $title, $help_url, '', 0, 0, $morejs, $morecss, '', 'bodyforlist mod-bookcal page-list_calendar');	// Can use also classforhorizontalscrolloftabs instead of bodyforlist for no horizontal scroll
 
 $arrayofselected = is_array($toselect) ? $toselect : array();
 
diff --git a/htdocs/bookcal/calendar_note.php b/htdocs/bookcal/calendar_note.php
index f18872e6ae1..d818e0b9476 100644
--- a/htdocs/bookcal/calendar_note.php
+++ b/htdocs/bookcal/calendar_note.php
@@ -103,7 +103,7 @@ $form = new Form($db);
 //$help_url='EN:Customers_Orders|FR:Commandes_Clients|ES:Pedidos de clientes';
 $help_url = '';
 $title = $langs->trans('Calendar').' - '.$langs->trans("Notes");
-llxHeader('', $title, $help_url);
+llxHeader('', $title, $help_url, '', 0, 0, '', '', '', 'mod-bookcal page-card_calendar_note');
 
 if ($id > 0 || !empty($ref)) {
 	$object->fetch_thirdparty();