diff --git a/kfet/static/kfet/css/jconfirm-kfet.css b/kfet/static/kfet/css/jconfirm-kfet.css
index 86c7c42b..4269fbcc 100644
--- a/kfet/static/kfet/css/jconfirm-kfet.css
+++ b/kfet/static/kfet/css/jconfirm-kfet.css
@@ -64,3 +64,22 @@
     color:#FFF !important;
     background:#C8102E !important;
 }
+
+.jconfirm .capslock {
+    position: relative ;
+}
+
+.jconfirm .capslock .glyphicon {
+    position: absolute;
+    padding: 10px;
+    right: 0px;
+    top: 15px;
+    font-size: 30px;
+    display: none ;
+    margin-left: 60px !important;
+}
+
+.jconfirm .capslock input {
+    padding-right: 50px;
+    padding-left: 50px;
+}
diff --git a/kfet/static/kfet/js/kfet.js b/kfet/static/kfet/js/kfet.js
index dbfba0b2..e3e5a6d9 100644
--- a/kfet/static/kfet/js/kfet.js
+++ b/kfet/static/kfet/js/kfet.js
@@ -88,7 +88,7 @@ function getErrorsHtml(data) {
 
 function requestAuth(data, callback, focus_next = null) {
     var content = getErrorsHtml(data);
-    content += '<input type="password" name="password" autofocus>',
+    content += '<div class="capslock"><span class="glyphicon glyphicon-lock"></span><input type="password" name="password" autofocus><div>',
     $.confirm({
         title: 'Authentification requise',
         content: content,
@@ -102,14 +102,39 @@ function requestAuth(data, callback, focus_next = null) {
         },
         onOpen: function() {
             var that = this;
+            var capslock = -1 ; // 1 -> caps on ; 0 -> caps off ; -1 or 2 -> unknown
             this.$content.find('input').on('keypress', function(e) {
                 if (e.keyCode == 13)
                     that.$confirmButton.click();
+
+                var s = String.fromCharCode(e.which);
+                if ((s.toUpperCase() === s && s.toLowerCase() !== s && !e.shiftKey)|| //caps on, shift off
+                    (s.toUpperCase() !== s && s.toLowerCase() === s && e.shiftKey)) { //caps on, shift on
+                        capslock = 1 ;
+                } else if ((s.toLowerCase() === s && s.toUpperCase() !== s && !e.shiftKey)|| //caps off, shift off
+                           (s.toLowerCase() !== s && s.toUpperCase() === s && e.shiftKey)) { //caps off, shift on
+                        capslock = 0 ;
+                }
+                if (capslock == 1)
+                    $('.capslock .glyphicon').show() ;
+                else if (capslock == 0)
+                    $('.capslock .glyphicon').hide() ;
+            });
+            // Capslock key is not detected by keypress
+            this.$content.find('input').on('keydown', function(e) {
+                if (e.which == 20) {
+                    capslock = 1-capslock ;
+                }
+                if (capslock == 1)
+                    $('.capslock .glyphicon').show() ;
+                else if (capslock == 0)
+                    $('.capslock .glyphicon').hide() ;
             });
         },
         onClose: function() {
             if (focus_next)
                 this._lastFocused = focus_next;
         }
+
     });
 }
diff --git a/kfet/templates/kfet/kpsul.html b/kfet/templates/kfet/kpsul.html
index babd4175..9d44a09d 100644
--- a/kfet/templates/kfet/kpsul.html
+++ b/kfet/templates/kfet/kpsul.html
@@ -114,10 +114,10 @@
     <div class="kpsul_middle_left">
       <div class="kpsul_middle_left_top">
         <div id="special_operations">
-          <button role="button" class="btn" id="operation_deposit">Charge</button>
-          <button role="button" class="btn" id="operation_withdraw">Retrait</button>
-          <button role="button" class="btn" id="cool_reset">RAZ</button>
-          <button role="button" class="btn" id="ask_addcost">Major.</button>
+          <button role="button" class="btn" id="operation_deposit">Charge (F3)</button>
+          <button role="button" class="btn" id="operation_withdraw">Retrait (Shift+F3)</button>
+          <button role="button" class="btn" id="cool_reset">RAZ (F1)</button>
+          <button role="button" class="btn" id="ask_addcost">Major. (F9)</button>
         </div>
         <div id="article_selection">
           <input type="text" id="article_autocomplete" autocomplete="off">
diff --git a/kfet/views.py b/kfet/views.py
index b270a96d..2fe284ad 100644
--- a/kfet/views.py
+++ b/kfet/views.py
@@ -490,7 +490,8 @@ class AccountGroupUpdate(UpdateView):
 
 class AccountNegativeList(ListView):
     queryset = (AccountNegative.objects
-        .select_related('account', 'account__cofprofile__user'))
+        .select_related('account', 'account__cofprofile__user')
+        .exclude(account__trigramme='#13'))
     template_name = 'kfet/account_negative.html'
     context_object_name = 'negatives'
 
@@ -501,12 +502,13 @@ class AccountNegativeList(ListView):
             'overdraft_duration': Settings.OVERDRAFT_DURATION(),
         }
         negs_sum = (AccountNegative.objects
+            .exclude(account__trigramme='#13')
             .aggregate(
                 bal    = Coalesce(Sum('account__balance'),0),
                 offset = Coalesce(Sum('balance_offset'),0),
             )
         )
-        context['negatives_sum'] = negs_sum['bal'] + negs_sum['offset']
+        context['negatives_sum'] = negs_sum['bal'] - negs_sum['offset']
         return context
 
 # -----