diff --git a/addons/web/common/http.py b/addons/web/common/http.py
index 3f6c96d1f42..0186fd985cc 100644
--- a/addons/web/common/http.py
+++ b/addons/web/common/http.py
@@ -20,6 +20,7 @@ def session(request, storage_path, session_cookie='sessionid'):
     else:
         request.session = session_store.new()
 
-    yield request.session
-
-    session_store.save(request.session)
+    try:
+        yield request.session
+    finally:
+        session_store.save(request.session)
diff --git a/addons/web/static/src/css/base.css b/addons/web/static/src/css/base.css
index 3accd712a57..124279bc0a0 100644
--- a/addons/web/static/src/css/base.css
+++ b/addons/web/static/src/css/base.css
@@ -221,17 +221,11 @@ label.error {
     height: 100%;
     background: #f0eeee;
 }
+.openerp .oe-application-container {
+    height: 100%;
+}
 
 /* Menu */
-.openerp .sf-menu {
-    margin-bottom: 0;
-}
-/*
-.sf-menu a {
-    padding: 5px 5px;
-}
-*/
-
 .openerp .menu {
     height: 34px;
     background: #cc4e45; /* Old browsers */
@@ -253,7 +247,7 @@ label.error {
     height: 20px;
     margin: 3px 2px;
     padding: 0 8px;
-    
+
     background: #bd5e54; /* Old browsers */
     background: -moz-linear-gradient(top, #bd5e54 0%, #90322a 60%); /* FF3.6+ */
     background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#bd5e54), color-stop(60%,#90322a)); /* Chrome,Safari4+ */
@@ -291,13 +285,38 @@ label.error {
     background: linear-gradient(top, #c6c6c6 0%,#5c5c5c 7%,#969595 86%); /* W3C */
     /* for ie */
     filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#5c5c5c', endColorstr='#969595',GradientType=0 ); /* IE6-9 */
-    
     color: #fff;
 }
-.openerp .oe-application-container {
-    height: 100%;
-}
 /* Secondary Menu */
+.openerp .secondary_menu .oe_toggle_secondary_menu {
+    position: absolute;
+    cursor: pointer;
+    border-left: 1px solid #282828;
+    width: 21px;
+    height: 21px;
+    z-index: 10;
+    background: transparent;
+    color: white;
+    text-shadow: 0 1px 0 #333;
+    text-align: center;
+    font-size: 18px;
+    line-height: 14px;
+    right: 0;
+}
+.openerp .secondary_menu.oe_folded .oe_toggle_secondary_menu {
+    position: static;
+    border-left: none;
+    border-bottom: 1px solid #282828;
+    width: 21px;
+    height: 21px;
+    background: #818181;
+}
+.openerp .secondary_menu.oe_folded .oe_toggle_secondary_menu span.oe_menu_fold {
+    display: none;
+}
+.openerp .secondary_menu.oe_unfolded .oe_toggle_secondary_menu span.oe_menu_unfold {
+    display: none;
+}
 .openerp .secondary_menu {
     width: 200px;
     min-width: 200px;
@@ -306,15 +325,34 @@ label.error {
     background: #5A5858;
     vertical-align: top;
     height: 100%;
+    position: relative;
 }
-.openerp .secondary_menu .menu_content {
-    padding: 0;
-    border: none;
-    background: none;
-    overflow: hidden;
+.openerp .secondary_menu.oe_folded {
+    width: 20px;
+    min-width: 20px;
+    position: static;
 }
-.openerp .secondary_menu h3 {
-    padding: 0 0 2px;
+.openerp .secondary_menu.oe_folded .oe_secondary_menu.active {
+    position: absolute;
+    z-index: 100;
+    border: 4px solid #585858;
+    border: 4px solid rgba(88, 88, 88, .5);
+    border-radius: 4px;
+    min-width: 200px;
+}
+.openerp .secondary_menu a {
+    display: block;
+    padding: 0 5px 2px 5px;
+    line-height: 20px;
+    text-decoration: none;
+    white-space: nowrap;
+    color: white;
+    text-shadow: 0 1px 0 #333;
+}
+.openerp .oe_secondary_submenu {
+    background: #5A5858;
+}
+.openerp .secondary_menu a.oe_secondary_menu_item {
     background: #949292; /* Old browsers */
     background: -moz-linear-gradient(top, #949292 0%, #6d6b6b 87%, #282828 99%); /* FF3.6+ */
     background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#949292), color-stop(87%,#6d6b6b), color-stop(99%,#282828)); /* Chrome,Safari4+ */
@@ -325,34 +363,13 @@ label.error {
     background: linear-gradient(top, #949292 0%,#6d6b6b 87%,#282828 99%); /* W3C */
     /* for ie9 */
     filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#949292', endColorstr='#5B5A5A',GradientType=0 ); /* IE6-9 */
-    border: none;
-    /* overriding jquery ui */
-    -moz-border-radius: 0; -webkit-border-radius: 0; border-radius: 0;
-}
-.openerp .secondary_menu h4 {
-    padding: 0 0 2px 10px;
-    border: none;
-    background: none;
-}
-.openerp .secondary_menu h3 span, .openerp .secondary_menu h4 span {
-    left: 0 !important;
-}
-.openerp .secondary_menu a {
-    display: block;
-    height: 20px;
-    padding: 0 5px;
-    line-height: 20px;
     white-space: nowrap;
     color: white;
-    text-decoration: none;
     text-shadow: 0 1px 0 #333;
 }
-.openerp .secondary_menu a.leaf:hover,
-.openerp .secondary_menu a.leaf:active,
-.openerp .secondary_menu a.leaf.active,
-.openerp .secondary_menu h4:hover,
-.openerp .secondary_menu h4:active,
-.openerp .secondary_menu h4.active {
+.openerp a.oe_secondary_submenu_item:hover,
+.openerp a.oe_secondary_submenu_item.leaf.active {
+    display: block;
     background: #ffffff; /* Old browsers */
     background: -moz-linear-gradient(top, #ffffff 0%, #d8d8d8 11%, #afafaf 86%, #333333 91%, #5a5858 96%); /* FF3.6+ */
     background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#ffffff), color-stop(11%,#d8d8d8), color-stop(86%,#afafaf), color-stop(91%,#333333), color-stop(96%,#5a5858)); /* Chrome,Safari4+ */
@@ -361,22 +378,17 @@ label.error {
     background: -ms-linear-gradient(top, #ffffff 0%,#d8d8d8 11%,#afafaf 86%,#333333 91%,#5a5858 96%); /* IE10+ */
     filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#FFFFFF', endColorstr='#5A5858',GradientType=0 ); /* IE6-9 */
     background: linear-gradient(top, #ffffff 0%,#d8d8d8 11%,#afafaf 86%,#333333 91%,#5a5858 96%); /* W3C */
-    /* overriding jquery ui */
-    -moz-border-radius-topright: 0; -webkit-border-top-right-radius: 0; border-top-right-radius: 0;
+    padding: 0 5px 2px 5px;
+    line-height: 20px;
     color: #3f3d3d;
+    text-decoration: none;
     text-shadow: #fff 0 1px 0;
-    border: none !important;
 }
-
-.openerp .secondary_menu h4:hover a,
-.openerp .secondary_menu h4:active a,
-.openerp .secondary_menu h4.active a {
-    color: #3f3d3d;
-    text-shadow: #fff 0 1px 0;
-    border: none !important;
+.openerp a.oe_secondary_submenu_item.submenu.opened span:before {
+    content: "\25be";
 }
-.openerp div.submenu_accordion div.menu_content a span {
-    padding-left: 20px;
+.openerp a.oe_secondary_submenu_item.submenu span:before {
+    content: "\25b8";
 }
 
 /* Header */
diff --git a/addons/web/static/src/js/chrome.js b/addons/web/static/src/js/chrome.js
index d114f485c62..fd3ea690245 100644
--- a/addons/web/static/src/js/chrome.js
+++ b/addons/web/static/src/js/chrome.js
@@ -581,7 +581,6 @@ openerp.web.Header =  openerp.web.Widget.extend(/** @lends openerp.web.Header# *
         this._super(parent);
         this.qs = "?" + jQuery.param.querystring();
         this.$content = $();
-        console.debug("initializing header with id", this.element_id);
         this.update_promise = $.Deferred().resolve();
     },
     start: function() {
@@ -776,74 +775,132 @@ openerp.web.Menu =  openerp.web.Widget.extend(/** @lends openerp.web.Menu# */{
         this.secondary_menu_id = secondary_menu_id;
         this.$secondary_menu = $("#" + secondary_menu_id).hide();
         this.menu = false;
+        this.folded = false;
+        if (window.localStorage) {
+            this.folded = localStorage.getItem('oe_menu_folded') === 'true';
+        }
+        this.float_timeout = 700;
     },
     start: function() {
+        this.$secondary_menu.addClass(this.folded ? 'oe_folded' : 'oe_unfolded');
+        this.reload();
+    },
+    reload: function() {
         this.rpc("/web/menu/load", {}, this.on_loaded);
     },
     on_loaded: function(data) {
         this.data = data;
-        this.$element.html(QWeb.render("Menu", this.data));
-        for (var i = 0; i < this.data.data.children.length; i++) {
-            var v = { menu : this.data.data.children[i] };
-            this.$secondary_menu.append(QWeb.render("Menu.secondary", v));
-        }
-        this.$secondary_menu.find("div.menu_accordion").accordion({
-            animated : false,
-            autoHeight : false,
-            icons : false
-        });
-        this.$secondary_menu.find("div.submenu_accordion").accordion({
-            animated : false,
-            autoHeight : false,
-            active: false,
-            collapsible: true,
-            header: 'h4'
-        });
-
+        this.$element.html(QWeb.render("Menu", { widget : this }));
+        this.$secondary_menu.html(QWeb.render("Menu.secondary", { widget : this }));
         this.$element.add(this.$secondary_menu).find("a").click(this.on_menu_click);
+        this.$secondary_menu.find('.oe_toggle_secondary_menu').click(this.on_toggle_fold);
+    },
+    on_toggle_fold: function() {
+        this.$secondary_menu.toggleClass('oe_folded').toggleClass('oe_unfolded');
+        if (this.folded) {
+            this.$secondary_menu.find('.oe_secondary_menu.active').show();
+        } else {
+            this.$secondary_menu.find('.oe_secondary_menu').hide();
+        }
+        this.folded = !this.folded;
+        if (window.localStorage) {
+            localStorage.setItem('oe_menu_folded', this.folded.toString());
+        }
     },
     on_menu_click: function(ev, id) {
         id = id || 0;
-        var $menu, $parent, $secondary;
+        var $clicked_menu, manual = false;
 
         if (id) {
             // We can manually activate a menu with it's id (for hash url mapping)
-            $menu = this.$element.find('a[data-menu=' + id + ']');
-            if (!$menu.length) {
-                $menu = this.$secondary_menu.find('a[data-menu=' + id + ']');
+            manual = true;
+            $clicked_menu = this.$element.find('a[data-menu=' + id + ']');
+            if (!$clicked_menu.length) {
+                $clicked_menu = this.$secondary_menu.find('a[data-menu=' + id + ']');
             }
         } else {
-            $menu = $(ev.currentTarget);
-            id = $menu.data('menu');
-        }
-        if (this.$secondary_menu.has($menu).length) {
-            $secondary = $menu.parents('.menu_accordion');
-            $parent = this.$element.find('a[data-menu=' + $secondary.data('menu-parent') + ']');
-        } else {
-            $parent = $menu;
-            $secondary = this.$secondary_menu.find('.menu_accordion[data-menu-parent=' + $menu.attr('data-menu') + ']');
+            $clicked_menu = $(ev.currentTarget);
+            id = $clicked_menu.data('menu');
         }
 
-        this.$secondary_menu.find('.menu_accordion').hide();
-        // TODO: ui-accordion : collapse submenus and expand the good one
-        $secondary.show();
-
-        if (id) {
+        if (this.do_menu_click($clicked_menu, manual) && id) {
             this.session.active_id = id;
-            this.rpc('/web/menu/action', {'menu_id': id},
-                    this.on_menu_action_loaded);
+            this.rpc('/web/menu/action', {'menu_id': id}, this.on_menu_action_loaded);
         }
+        ev.stopPropagation();
+        return false;
+    },
+    do_menu_click: function($clicked_menu, manual) {
+        var $sub_menu, $main_menu,
+            active = $clicked_menu.is('.active'),
+            sub_menu_visible = false;
+
+        if (this.$secondary_menu.has($clicked_menu).length) {
+            $sub_menu = $clicked_menu.parents('.oe_secondary_menu');
+            $main_menu = this.$element.find('a[data-menu=' + $sub_menu.data('menu-parent') + ']');
+        } else {
+            $sub_menu = this.$secondary_menu.find('.oe_secondary_menu[data-menu-parent=' + $clicked_menu.attr('data-menu') + ']');
+            $main_menu = $clicked_menu;
+        }
+
+        sub_menu_visible = $sub_menu.is(':visible');
+        this.$secondary_menu.find('.oe_secondary_menu').hide();
 
         $('.active', this.$element.add(this.$secondary_menu.show())).removeClass('active');
-        $parent.addClass('active');
-        $menu.addClass('active');
-        $menu.parent('h4').addClass('active');
+        $main_menu.add($clicked_menu).add($sub_menu).addClass('active');
 
-        if (this.$secondary_menu.has($menu).length) {
-            return !$menu.is(".leaf");
-        } else {
-            return false;
+        if (!(this.folded && manual)) {
+            this.do_show_secondary($sub_menu, $main_menu);
         }
+
+        if ($main_menu != $clicked_menu) {
+            if ($clicked_menu.is('.submenu')) {
+                $sub_menu.find('.submenu.opened').each(function() {
+                    if (!$(this).next().has($clicked_menu).length && !$(this).is($clicked_menu)) {
+                        $(this).removeClass('opened').next().hide();
+                    }
+                });
+                $clicked_menu.toggleClass('opened').next().toggle();
+            } else if ($clicked_menu.is('.leaf')) {
+                $sub_menu.toggle(!this.folded);
+                return true;
+            }
+        } else if (this.folded) {
+            if (active && sub_menu_visible) {
+                $sub_menu.hide();
+                return true;
+            }
+        } else {
+            return true;
+        }
+        return false;
+    },
+    do_show_secondary: function($sub_menu, $main_menu) {
+        var self = this;
+        if (this.folded) {
+            var css = $main_menu.position(),
+                fold_width = this.$secondary_menu.width() + 2,
+                window_width = $(window).width();
+            css.top += 33;
+            css.left -= Math.round(($sub_menu.width() - $main_menu.width()) / 2);
+            css.left = css.left < fold_width ? fold_width : css.left;
+            if ((css.left + $sub_menu.width()) > window_width) {
+                delete(css.left);
+                css.right = 1;
+            }
+            $sub_menu.css(css);
+            $sub_menu.mouseenter(function() {
+                clearTimeout($sub_menu.data('timeoutId'));
+            }).mouseleave(function(evt) {
+                var timeoutId = setTimeout(function() {
+                    if (self.folded) {
+                        $sub_menu.hide();
+                    }
+                }, self.float_timeout);
+                $sub_menu.data('timeoutId', timeoutId);
+            });
+        }
+        $sub_menu.show();
     },
     on_menu_action_loaded: function(data) {
         var self = this;
@@ -905,7 +962,6 @@ openerp.web.WebClient = openerp.web.Widget.extend(/** @lends openerp.web.WebClie
         this.session.start();
         this.login.start();
         this.menu.start();
-        console.debug("The openerp client has been initialized.");
     },
     on_logged: function() {
         if(this.action_manager)
diff --git a/addons/web/static/src/js/core.js b/addons/web/static/src/js/core.js
index fc4e3b4c2c4..076e91b269c 100644
--- a/addons/web/static/src/js/core.js
+++ b/addons/web/static/src/js/core.js
@@ -1,7 +1,10 @@
 /*---------------------------------------------------------
  * OpenERP Web core
  *--------------------------------------------------------*/
-
+var console;
+if (!console) {
+    console = {log: function () {}};
+}
 if (!console.debug) {
     console.debug = console.log;
 }
@@ -944,7 +947,6 @@ openerp.web.Widget = openerp.web.SessionAware.extend(/** @lends openerp.web.Widg
      * If that's not the case this method will simply return `false`.
      */
     do_action: function(action, on_finished) {
-        console.log('Widget.do_action', action, on_finished);
         if (this.widget_parent) {
             return this.widget_parent.do_action(action, on_finished);
         }
diff --git a/addons/web/static/src/js/search.js b/addons/web/static/src/js/search.js
index a2151dbd40f..db91d6bfd27 100644
--- a/addons/web/static/src/js/search.js
+++ b/addons/web/static/src/js/search.js
@@ -327,7 +327,8 @@ openerp.web.SearchView = openerp.web.Widget.extend(/** @lends openerp.web.Search
         this.notification.notify("Invalid Search", "triggered from search view");
     },
     do_clear: function () {
-        $('.filter_label').removeClass('enabled');
+        this.$element.find('.filter_label').removeClass('enabled');
+        this.enabled_filters.splice(0);
         var string = $('a.searchview_group_string');
         _.each(string, function(str){
             $(str).closest('div.searchview_group').removeClass("expanded").addClass('folded');
@@ -542,6 +543,7 @@ openerp.web.search.FilterGroup = openerp.web.search.Input.extend(/** @lends open
         var domains = _(this.filters).chain()
             .filter(function (filter) { return filter.is_enabled(); })
             .map(function (filter) { return filter.attrs.domain; })
+            .reject(_.isEmpty)
             .value();
 
         if (!domains.length) { return; }
diff --git a/addons/web/static/src/js/view_list.js b/addons/web/static/src/js/view_list.js
index f8a89cd34a1..eeda44c4c99 100644
--- a/addons/web/static/src/js/view_list.js
+++ b/addons/web/static/src/js/view_list.js
@@ -415,8 +415,8 @@ openerp.web.ListView = openerp.web.View.extend( /** @lends openerp.web.ListView#
      */
     do_search: function (domains, contexts, groupbys) {
         return this.rpc('/web/session/eval_domain_and_context', {
-            domains: [this.dataset.get_domain()].concat(domains),
-            contexts: [this.dataset.get_context()].concat(contexts),
+            domains: _([this.dataset.get_domain()].concat(domains)).compact(),
+            contexts: _([this.dataset.get_context()].concat(contexts)).compact(),
             group_by_seq: groupbys
         }, $.proxy(this, 'do_actual_search'));
     },
@@ -541,6 +541,7 @@ openerp.web.ListView = openerp.web.View.extend( /** @lends openerp.web.ListView#
         if (_.isEmpty(records)) {
             records = this.groups.get_records();
         }
+        records = _(records).compact();
 
         var count = 0, sums = {};
         _(columns).each(function (column) {
@@ -1235,6 +1236,9 @@ openerp.web.ListView.Groups = openerp.web.Class.extend( /** @lends openerp.web.L
     },
     get_records: function () {
         if (_(this.children).isEmpty()) {
+            if (!this.datagroup.length) {
+                return;
+            }
             return {
                 count: this.datagroup.length,
                 values: this.datagroup.aggregates
diff --git a/addons/web/static/src/js/view_list_editable.js b/addons/web/static/src/js/view_list_editable.js
index b5a5a3d8c10..beb2c3ac0a9 100644
--- a/addons/web/static/src/js/view_list_editable.js
+++ b/addons/web/static/src/js/view_list_editable.js
@@ -182,9 +182,11 @@ openerp.web.list_editable = function (openerp) {
                 self.edition_id = record_id;
                 self.edition_form = _.extend(new openerp.web.ListEditableFormView(self, self.dataset, false), {
                     form_template: 'ListView.row.form',
-                    registry: openerp.web.list.form.widgets
+                    registry: openerp.web.list.form.widgets,
+                    $element: $new_row
                 });
-                self.edition_form.appendTo($("#" + $new_row.attr('id')));
+                // HA HA
+                self.edition_form.appendTo();
                 $.when(self.edition_form.on_loaded(self.get_form_fields_view())).then(function () {
                     // put in $.when just in case  FormView.on_loaded becomes asynchronous
                     $new_row.find('td')
@@ -335,6 +337,9 @@ openerp.web.list_editable = function (openerp) {
     });
     
     openerp.web.ListEditableFormView = openerp.web.FormView.extend({
-        init_view: function() {}
+        init_view: function() {},
+        _render_and_insert: function () {
+            return this.start();
+        }
     });
 };
diff --git a/addons/web/static/src/xml/base.xml b/addons/web/static/src/xml/base.xml
index 346e6653018..3e75628b12b 100644
--- a/addons/web/static/src/xml/base.xml
+++ b/addons/web/static/src/xml/base.xml
@@ -38,11 +38,17 @@
         </td>
     </tr>
     <tr>
-        <td valign="top" id="oe_secondary_menu" class="secondary_menu">
-        </td>
-        <td valign="top" class="oe-application-container">
-            <div id="oe_app" class="oe-application">
-            </div>
+        <td colspan="2" valign="top" height="100%">
+            <table cellspacing="0" cellpadding="0" border="0" height="100%" width="100%">
+            <tr>
+                <td valign="top" id="oe_secondary_menu" class="secondary_menu">
+                </td>
+                <td valign="top" class="oe-application-container">
+                    <div id="oe_app" class="oe-application">
+                    </div>
+                </td>
+            </tr>
+            </table>
         </td>
     </tr>
     <tr>
@@ -364,45 +370,39 @@
 </ul>
 <t t-name="Menu">
     <table align="center">
-        <tr>
-        <t t-foreach="data.children" t-as="menu">
-            <td>
-                <a href="#" t-att-data-menu="menu.id">
-                    <t t-esc="menu.name"/>
-                </a>
-            </td>
-        </t>
-        </tr>
+    <tr>
+        <td t-foreach="widget.data.data.children" t-as="menu">
+            <a href="#" t-att-data-menu="menu.id">
+                <t t-esc="menu.name"/>
+            </a>
+        </td>
+    </tr>
     </table>
 </t>
 <t t-name="Menu.secondary">
-    <div style="display: none" class="menu_accordion" t-att-data-menu-parent="menu.id">
+    <div t-attf-class="oe_toggle_secondary_menu">
+        <span class="oe_menu_fold" title="Fold menu">&amp;laquo;</span>
+        <span class="oe_menu_unfold" title="Unfold menu">&amp;raquo;</span>
+    </div>
+    <div t-foreach="widget.data.data.children" t-as="menu" style="display: none" class="oe_secondary_menu" t-att-data-menu-parent="menu.id">
         <t t-foreach="menu.children" t-as="menu">
-            <t t-set="header">h3</t>
+            <t t-set="classname">oe_secondary_menu_item</t>
+            <t t-set="level" t-value="0"/>
             <t t-call="Menu.secondary.children"/>
         </t>
     </div>
 </t>
 <t t-name="Menu.secondary.children">
-    &lt;<t t-esc="header"/>&gt;
-        <a href="#" t-attf-id="menu_#{menu.id}">
-            <span><t t-esc="menu.name"/></span>
-        </a>
-    &lt;/<t t-esc="header"/>&gt;
-    <div class="menu_content">
+    <t t-set="level" t-value="level + 1"/>
+    <a href="#" t-att-id="menu.children.length ? 'menu_' + menu.id : undefined"
+        t-att-class="classname + (menu.children.length ? ' submenu' : ' leaf') + (menu_first and level == 1 ? ' opened' : '')"
+        t-att-data-menu="menu.children.length ? undefined : menu.id">
+        <span t-attf-style="padding-left: #{(level - 2) * 20}px"> <t t-esc="menu.name"/></span>
+    </a>
+    <div t-attf-class="oe_secondary_submenu" t-if="menu.children.length" t-att-style="menu_first and level == 1 ? undefined : 'display: none'">
         <t t-foreach="menu.children" t-as="menu">
-            <t t-if="!menu.children.length">
-                <a href="#" class="leaf" t-att-data-menu="menu.id">
-                    <span><t t-esc="menu.name"/></span>
-                </a>
-            </t>
-            <t t-if="menu.children.length">
-                <div class="submenu_accordion">
-                    <t t-call="Menu.secondary.children">
-                        <t t-set="header">h4</t>
-                    </t>
-                </div>
-            </t>
+            <t t-set="classname">oe_secondary_submenu_item</t>
+            <t t-call="Menu.secondary.children"/>
         </t>
     </div>
 </t>