diff --git a/app/scodoc/html_sco_header.py b/app/scodoc/html_sco_header.py
index 6362d4db..5d42e3d9 100644
--- a/app/scodoc/html_sco_header.py
+++ b/app/scodoc/html_sco_header.py
@@ -25,8 +25,7 @@
 #
 ##############################################################################
 
-"""HTML Header/Footer for ScoDoc pages
-"""
+"""HTML Header/Footer for ScoDoc pages"""
 
 import html
 
@@ -101,7 +100,7 @@ _HTML_BEGIN = f"""<!DOCTYPE html>
 <script src="{scu.STATIC_DIR}/libjs/menu.js"></script>
 <script src="{scu.STATIC_DIR}/libjs/bubble.js"></script>
 <script>
- window.onload=function(){{enableTooltips("gtrcontent")}};
+ window.onload=function(){{enableTooltips("gtrcontent"); enableTooltips("sidebar");}};
 </script>
 
 <script src="{scu.STATIC_DIR}/jQuery/jquery.js"></script>
@@ -218,7 +217,7 @@ def sco_header(
 <script src="{scu.STATIC_DIR}/libjs/menu.js"></script>
 <script src="{scu.STATIC_DIR}/libjs/bubble.js"></script>
 <script>
- window.onload=function(){{enableTooltips("gtrcontent")}};
+ window.onload=function(){{enableTooltips("gtrcontent"); enableTooltips("sidebar");}};
 
  const SCO_URL="{url_for("scolar.index_html", scodoc_dept=g.scodoc_dept)}";
  const SCO_TIMEZONE="{scu.TIME_ZONE}";
diff --git a/app/scodoc/html_sidebar.py b/app/scodoc/html_sidebar.py
index a296d10c..85df8548 100755
--- a/app/scodoc/html_sidebar.py
+++ b/app/scodoc/html_sidebar.py
@@ -152,7 +152,7 @@ def sidebar(etudid: int = None):
     H = [
         f"""
         <!-- sidebar py -->
-        <div class="sidebar">
+        <div class="sidebar" id="sidebar">
         { sidebar_common() }
         <div class="box-chercheetud">Chercher étudiant:<br>
         <form method="get" id="form-chercheetud"
diff --git a/app/static/libjs/bubble.js b/app/static/libjs/bubble.js
index d0c0e249..861ff3c7 100644
--- a/app/static/libjs/bubble.js
+++ b/app/static/libjs/bubble.js
@@ -11,8 +11,8 @@ h.id="btc";
 h.setAttribute("id","btc");
 h.style.position="absolute";
 document.getElementsByTagName("body")[0].appendChild(h);
-if(id==null) links=document.getElementsByTagName("a");
-else links=document.getElementById(id).getElementsByTagName("a");
+if(id==null) links=document.querySelectorAll("a, [data-tooltip]"); // was document.getElementsByTagName("a")
+else links=document.getElementById(id).querySelectorAll("a, [data-tooltip]");// was document.getElementById(id).getElementsByTagName("a")
 for(i=0;i<links.length;i++){
     Prepare(links[i]);
     }
diff --git a/app/templates/sco_page.j2 b/app/templates/sco_page.j2
index f1e8d8c2..53883f74 100644
--- a/app/templates/sco_page.j2
+++ b/app/templates/sco_page.j2
@@ -49,7 +49,7 @@
 <script src="{{scu.STATIC_DIR}}/js/scodoc.js"></script>
 <script src="{{scu.STATIC_DIR}}/DataTables/datatables.min.js"></script>
 <script>
-    window.onload = function () { enableTooltips("gtrcontent") };
+    window.onload = function () { enableTooltips("gtrcontent"); enableTooltips("sidebar"); };
 
     const SCO_URL = "{{ url_for('scolar.index_html', scodoc_dept=g.scodoc_dept) }}";
 </script>
diff --git a/app/templates/sidebar.j2 b/app/templates/sidebar.j2
index 346ffffa..f3ea3a12 100755
--- a/app/templates/sidebar.j2
+++ b/app/templates/sidebar.j2
@@ -1,7 +1,7 @@
 {# Barre marge gauche ScoDoc #}
 {# -*- mode: jinja-html -*- #}
 <!-- sidebar -->
-<div class="sidebar">
+<div class="sidebar" id="sidebar">
     {# sidebar_common #}
     <a class="scodoc_title" href="{{
         url_for('scodoc.index', scodoc_dept=g.scodoc_dept) }}">ScoDoc {{ sco.SCOVERSION }}</a>
