diff --git a/modoboa/extensions/stats/graph_templates.py b/modoboa/extensions/stats/graph_templates.py
new file mode 100644
index 000000000..ce629c822
--- /dev/null
+++ b/modoboa/extensions/stats/graph_templates.py
@@ -0,0 +1,51 @@
+# coding: utf-8
+
+from django.utils.translation import ugettext_lazy
+
+class MailTrafic(object):
+    pass
+
+traffic_avg_template = {
+    'name' : 'traffic',
+    'title' : ugettext_lazy("Average normal traffic"),
+    'width'  : '540',
+    'height' : '120',
+    'vertlabel' : ugettext_lazy('msgs/min'),
+    'cf' : 'AVERAGE',
+    'vars' : {
+        'sent' : { "type" : "AREA", "color" : "#00FF00", 
+                   "legend" : ugettext_lazy("sent messages") },
+        'recv' : { "type" : "AREA", "color" : "#0000FF", 
+                   "legend" : ugettext_lazy("received messages") },
+        }
+}
+
+badtraffic_avg_template = {
+    'name' : 'badtraffic',
+    'title' : ugettext_lazy("Average bad traffic"),
+    'width'  : '540',
+    'height' : '120',
+    'vertlabel' : ugettext_lazy('msgs/min'),
+    'cf' : 'AVERAGE',
+    'vars' : {
+        'bounced' : { "type" : "AREA", "color" : "#FFFF00", 
+                      "legend" : ugettext_lazy("bounced messages") },
+        'reject' : { "type" : "AREA", "color" : "#FF0000", 
+                     "legend" : ugettext_lazy("rejected messages") },
+        }
+}
+
+size_avg_template = {
+    'name' : 'size',
+    'title' : ugettext_lazy("Average normal traffic size"),
+    'width'  : '540',
+    'height' : '120',
+    'vertlabel' : ugettext_lazy('bytes/min'),
+    'cf' : 'AVERAGE',
+    'vars' : {
+        'size_recv' : { "type" : "AREA", "color" : "#FF9900", 
+                        "legend" : ugettext_lazy("received size") },
+        'size_sent' : { "type" : "AREA", "color" : "#339999", 
+                        "legend" : ugettext_lazy("sent size") },
+        }
+}
diff --git a/modoboa/extensions/stats/grapher.py b/modoboa/extensions/stats/grapher.py
index 8d8f3f10f..4da6ac8e4 100644
--- a/modoboa/extensions/stats/grapher.py
+++ b/modoboa/extensions/stats/grapher.py
@@ -1,57 +1,11 @@
-# -*- coding: utf-8 -*-
+# coding: utf-8
 
 import sys, os
 import time
 import datetime
-from django.utils.translation import ugettext as _
+from django.utils.translation import ugettext as _, ugettext_lazy
 from modoboa.lib import parameters
 
-traffic_avg_template = {
-    'name' : 'traffic',
-    'width'  : '540',
-    'height' : '100',
-    'vertlabel' : 'msgs/min',
-    'cf' : 'AVERAGE',
-    'vars' : {
-        'sent' : { "type" : "AREA", "color" : "#00FF00", 
-                   "legend" : _("sent messages") },
-        'recv' : { "type" : "AREA", "color" : "#0000FF", 
-                   "legend" : _("received messages") },
-        }
-}
-
-badtraffic_avg_template = {
-    'name' : 'badtraffic',
-    'width'  : '540',
-    'height' : '100',
-    'vertlabel' : _('msgs/min'),
-    'cf' : 'AVERAGE',
-    'vars' : {
-        'bounced' : { "type" : "AREA", "color" : "#FFFF00", 
-                      "legend" : _("bounced messages") },
-        'reject' : { "type" : "AREA", "color" : "#FF0000", 
-                     "legend" : _("rejected messages") },
-        }
-}
-
-size_avg_template = {
-    'name' : 'size',
-    'width'  : '540',
-    'height' : '100',
-    'vertlabel' : _('bytes/min'),
-    'cf' : 'AVERAGE',
-    'vars' : {
-        'size_recv' : { "type" : "AREA", "color" : "#FF9900", 
-                        "legend" : _("received size") },
-        'size_sent' : { "type" : "AREA", "color" : "#339999", 
-                        "legend" : _("sent size") },
-        }
-}
-
-tpl = {'traffic':traffic_avg_template,
-       'badtraffic':badtraffic_avg_template,
-       'size':size_avg_template}
-
 def str2Time(y, M, d, h="0", m="0", s="0"):
     """Date conversion
 
@@ -77,7 +31,7 @@ class Grapher(object):
         self.rrd_rootdir = parameters.get_admin("RRD_ROOTDIR")
         self.img_rootdir = parameters.get_admin("IMG_ROOTDIR")
 
-    def process(self, target, suffix, start, end, tpl=traffic_avg_template):
+    def process(self, target, suffix, start, end, tpl):
         import rrdtool
 
         rrdfile = "%s/%s.rrd" % (self.rrd_rootdir, target)
@@ -90,12 +44,17 @@ class Grapher(object):
         end = str(end)
         defs = []
         lines = []
+        defs.append('COMMENT: %s %s %s %s\\c' % ("From", start, "to", end))
+        defs.append('COMMENT:\\s')
         for v, d in tpl["vars"].iteritems():
             defs += [str('DEF:%s=%s:%s:%s' % (v, rrdfile, v, tpl['cf'])),
-                     str('CDEF:%spm=%s,60,*' % (v, v))]
+                     str('CDEF:%spm=%s,60,*' % (v, v)),
+                     str('VDEF:%s_total=%s,TOTAL' % (v, v))]
             type = d.has_key("type") and d["type"] or "LINE"
-            lines += [str("%s:%spm%s:%s" % (type, v, d["color"],
-                                        d["legend"].encode("utf-8")))]
+            lines += [str("%s:%spm%s:%s:STACK" % (type, v, d["color"],
+                                                  (d["legend"].encode("utf8")).ljust(20)))]
+            lines.append('GPRINT:%s_total:%s%%7.0lf%%s\\l' % (v, _("Total").encode('utf-8')))
+
         params = defs + lines
         rrdtool.graph(str(path),
                       "--imgformat", "PNG",
@@ -107,12 +66,13 @@ class Grapher(object):
                       "--lower-limit", "0",
                       "--slope-mode",
                       "--units-exponent", "0",
+                      "--title", tpl["title"].encode("utf-8"),
                       *params)
 
         if not os.path.exists(path):
             print "[graph] Impossible to create %s graph" %path
 
-    def make_defaults(self, target, tpl=traffic_avg_template):
+    def make_defaults(self, target, tpl):
         end = "%d" % int(time.mktime(time.localtime()))
         self.process(target, "day", "-1day", end, tpl)
         self.process(target, "week", "-1week", end, tpl)
diff --git a/modoboa/extensions/stats/static/stats/css/stats.css b/modoboa/extensions/stats/static/stats/css/stats.css
index 71e70d3e6..e69de29bb 100644
--- a/modoboa/extensions/stats/static/stats/css/stats.css
+++ b/modoboa/extensions/stats/static/stats/css/stats.css
@@ -1,24 +0,0 @@
-#fixed_content { 
-    padding: 0 15px;
-}
-
-#searchform {
-    float: left;
-    margin-right: 10px;
-    margin-bottom: 0px;
-}
-
-#menubar { 
-    clear: both;
-}
-
-#graphs {
-    margin-top: 15px;
-}
-
-#period { 
-}
-
-#custom-period {
-    margin-left: 10px;
-}
\ No newline at end of file
diff --git a/modoboa/extensions/stats/static/stats/js/stats.js b/modoboa/extensions/stats/static/stats/js/stats.js
index 1460b5fc1..d371966cf 100644
--- a/modoboa/extensions/stats/static/stats/js/stats.js
+++ b/modoboa/extensions/stats/static/stats/js/stats.js
@@ -31,14 +31,6 @@ Stats.prototype = {
                 }
             }
         });
-        if (navobj.params.period) {
-            $("input[value=" + navobj.params.period + "]").attr("checked", "checked");
-            if (navobj.params.period != "custom") {
-                $("#custom-period").hide();
-            }
-        } else {
-            $("#custom-period").hide();
-        }
         if (navobj.params.start) {
             $("#id_from").attr("value", navobj.params.start);
         }
@@ -55,8 +47,7 @@ Stats.prototype = {
 
     listen: function() {
         $("#searchform").on("keypress", $.proxy(this.search_domain, this));
-        $(document).on("change", "input[name=period]",
-            $.proxy(this.change_period, this));
+        $(".period_selector").click($.proxy(this.change_period, this));
         $("#customsend").on("click", $.proxy(this.customgraphs, this));
     },
 
@@ -66,15 +57,11 @@ Stats.prototype = {
     },
 
     change_period: function(e) {
-        var $input = $(e.target);
+        e.preventDefault();
+        var $link = $(e.target);
 
-        if ($input.attr("value") == "custom") {
-            $("#custom-period").show();
-        } else {
-            $("#custom-period").hide();
-            this.navobj.delparam("start").delparam("end");
-            this.navobj.setparam("period", $input.attr("value")).update();
-        }
+        this.navobj.delparam("start").delparam("end");
+        this.navobj.setparam("period", $link.attr("data-period")).update();
     },
 
     graphs_cb: function(data) {
@@ -82,7 +69,7 @@ Stats.prototype = {
             $("body").notify("error", data.respmsg);
             return;
         }
-        $("#graphs").html(data.content);
+        $("#graphs_mailstats").html(data.content);
     },
 
     search_domain: function(e) {
diff --git a/modoboa/extensions/stats/templates/stats/graphs.html b/modoboa/extensions/stats/templates/stats/graphs.html
index 83a088259..114deb675 100644
--- a/modoboa/extensions/stats/templates/stats/graphs.html
+++ b/modoboa/extensions/stats/templates/stats/graphs.html
@@ -1,9 +1,5 @@
 {% load i18n %}
-{% if start or end %}
-<h2>{% trans "Custom period : from" %} {{ start }} {% trans "to" %} {{ end }}</h2>
-{% endif %}
-{% for elems in graphs %}
-<h3>{% trans elems.label %}</h3>
-<p><img src="{{ MEDIA_URL }}stats/{{ elems.name }}_{{ domain }}_AVERAGE_{% ifequal period 'custom' %}{{ period_name }}{% else %}{{ period }}{% endifequal %}.png" 
+{% for name in graphs %}
+<p><img src="{{ MEDIA_URL }}stats/{{ name }}_{{ domain }}_AVERAGE_{% ifequal period 'custom' %}{{ period_name }}{% else %}{{ period }}{% endifequal %}.png" 
         alt="{% trans 'No statistics available' %}" /></p>
 {% endfor %}
diff --git a/modoboa/extensions/stats/templates/stats/index.html b/modoboa/extensions/stats/templates/stats/index.html
index 8724a2fb3..6eb171e5e 100644
--- a/modoboa/extensions/stats/templates/stats/index.html
+++ b/modoboa/extensions/stats/templates/stats/index.html
@@ -1,4 +1,4 @@
-{% extends "fixed.html" %}{% load i18n %}
+{% extends "twocols.html" %}{% load i18n %}
 {% block pagetitle %}{% trans "Graphical statistics" %}{% endblock %}
 {% block html_head %}
 <link rel="stylesheet" type="text/css" href="{{ STATIC_URL }}stats/css/stats.css" />
@@ -13,24 +13,43 @@ $(document).ready(function() {
 });
 </script>
 {% endblock %}
-{% block fixed_content %}
-<div id="menubar">
-  <form id="searchform" class="form-search">
-    <input class="input-medium search-query" type="text" 
-           value={% if squery %}"{{ squery }}"{% else %}"{% trans 'Search a domain' %}"{% endif %}
-           id="searchquery" name="searchquery" />
-  </form>
-  <form id="period" class="form-inline">
-    {% for p in periods %}<label class="radio"><input name="period" type="radio" value="{{ p.name }}"{% if p.name == period %}checked{% endif %} />{% trans p.label %}</label>
+{% block leftcol %}
+<div id="periods" class="well sidebar-nav">
+  <ul class="nav nav-list">
+    <li class="nav-header">
+      {% trans "Predefined time ranges" %}
+    </li>
+    {% for p in periods %}<li class="period">
+      <a href="#" class="period_selector" data-period="{{ p.name }}">{% trans p.label %}</a>
+    </li>
     {% endfor %}
-    <span id="custom-period">
-      <input id="id_from" class="input-small" name="date_from" value="{{ start }}" type="text" />
-      <input id="id_to" class="input-small" name="date_to" value="{{ end }}" type="text" />
-      <button class="btn" id="customsend">{% trans "Apply" %}</button>
-    </span>
-  </form>
+    <li class="nav-header">
+      {% trans "Custom time range" %}
+    </li>
+    <li>
+      <form class="form-inline">
+        <span id="custom-period">
+          <div class="input-prepend">
+            <span class="add-on"><i class="icon-indent-left"></i></span><input id="id_from" class="input-medium" name="date_from" value="{{ start }}" type="text" />
+          </div>
+          <div class="input-prepend">
+            <span class="add-on"><i class="icon-indent-right"></i></span><input id="id_to" class="input-medium" name="date_to" value="{{ end }}" type="text" />
+          </div>
+          <button class="btn" id="customsend">{% trans "Apply" %}</button>
+        </span>
+      </form>
+    </li>
+  </ul>
+</div>
+{% endblock %}
+{% block apparea %}
+<div id="graphs" class="tabbable">
+  <ul class="nav nav-tabs">
+    <li class="active"><a href="#graphs_mailstats" data-toggle="tab">{% trans "Mail trafic" %}</a></li>
+  </ul>
+  <div class="tab-content">
+    <div class="tab-pane active" id="graphs_mailstats"></div>
+  </div>
 </div>
-<hr>
-<div id="graphs"></div>
 {% endblock %}
  
diff --git a/modoboa/extensions/stats/views.py b/modoboa/extensions/stats/views.py
index 6cfb766e0..cbd87bd69 100644
--- a/modoboa/extensions/stats/views.py
+++ b/modoboa/extensions/stats/views.py
@@ -6,16 +6,12 @@ from django.contrib.auth.decorators \
     import login_required, user_passes_test, permission_required
 from modoboa.extensions.stats.grapher import *
 from modoboa.lib.exceptions import *
+from graph_templates import *
 
-graph_types = ['AVERAGE', 'MAX']
-graph_list = [{"name" : "traffic", "label" : ugettext_lazy("Average normal traffic")},
-              {"name" : "badtraffic", "label" : ugettext_lazy("Average bad traffic")},
-              {"name" : "size", "label" : ugettext_lazy("Average normal traffic size")}]
 periods = [{"name" : "day", "label" : ugettext_lazy("Day")},
            {"name" : "week", "label" : ugettext_lazy("Week")},
            {"name" : "month", "label" : ugettext_lazy("Month")},
-           {"name" : "year", "label" : ugettext_lazy("Year")},
-           {"name" : "custom", "label" : ugettext_lazy("Custom")}]
+           {"name" : "year", "label" : ugettext_lazy("Year")}]
 
 @login_required
 @permission_required("admin.view_mailboxes")
@@ -31,7 +27,6 @@ def index(request):
         
     period = request.GET.get("period", "day")
     return _render(request, 'stats/index.html', {
-            "graphs" : graph_list,
             "periods" : periods,
             "period" : period,
             "selection" : "stats",
@@ -45,7 +40,7 @@ def graphs(request):
     if not view:
         raise ModoboaException(_("Invalid request"))
     period = request.GET.get("period", "day")
-    tplvars = dict(graphs=graph_list, period=period)
+    tplvars = dict(graphs=[], period=period)
     if view == "global":
         if not request.user.is_superuser:
             raise PermDeniedException
@@ -66,12 +61,13 @@ def graphs(request):
         end = request.GET["end"]
         G = Grapher()
         period_name = "%s_%s" % (start.replace('-',''), end.replace('-',''))
-        for tpl_name in graph_list:
+        for tpl in [traffic_avg_template, badtraffic_avg_template, size_avg_template]:
+            tplvars['graphs'].append(tpl['name'])
             G.process(tplvars["domain"],
                       period_name,
                       str2Time(*start.split('-')),
                       str2Time(*end.split('-')),
-                      tpl[tpl_name['name']])
+                      tpl)
         tplvars["period_name"] = period_name
         tplvars["start"] = start
         tplvars["end"] = end