diff --git a/addons/web/static/lib/qweb/qweb2.js b/addons/web/static/lib/qweb/qweb2.js
index c9b065ee69f..71a9628eff2 100644
--- a/addons/web/static/lib/qweb/qweb2.js
+++ b/addons/web/static/lib/qweb/qweb2.js
@@ -4,7 +4,7 @@
 // TODO: t-set + t-value + children node == scoped variable ?
 var QWeb2 = {
     expressions_cache: {},
-    RESERVED_WORDS: 'true,false,NaN,null,undefined,debugger,console,in,instanceof,new,function,return,this,typeof,eval,void,Math,RegExp,Array,Object,Date'.split(','),
+    RESERVED_WORDS: 'true,false,NaN,null,undefined,debugger,console,window,in,instanceof,new,function,return,this,typeof,eval,void,Math,RegExp,Array,Object,Date'.split(','),
     ACTIONS_PRECEDENCE: 'foreach,if,call,set,esc,escf,raw,rawf,js,debug,log'.split(','),
     WORD_REPLACEMENT: {
         'and': '&&',
diff --git a/addons/web/static/src/js/chrome.js b/addons/web/static/src/js/chrome.js
index fcb4747a2e0..b440746be9f 100644
--- a/addons/web/static/src/js/chrome.js
+++ b/addons/web/static/src/js/chrome.js
@@ -532,7 +532,9 @@ instance.web.Login =  instance.web.Widget.extend({
         });
         var d;
         if (self.params.db) {
-            d = self.do_login(self.params.db, self.params.login, self.params.password);
+            if (self.params.login && self.params.password) {
+                d = self.do_login(self.params.db, self.params.login, self.params.password);
+            }
         } else {
             d = self.rpc("/web/database/get_list", {}).done(self.on_db_loaded).fail(self.on_db_failed);
         }
@@ -577,7 +579,7 @@ instance.web.Login =  instance.web.Widget.extend({
      */
     do_login: function (db, login, password) {
         var self = this;
-        this.$el.removeClass('oe_login_invalid');
+        self.hide_error();
         self.$(".oe_login_pane").fadeOut("slow");
         return this.session.session_authenticate(db, login, password).pipe(function() {
             if (self.has_local_storage) {
@@ -594,12 +596,19 @@ instance.web.Login =  instance.web.Widget.extend({
                 }
             }
             self.trigger('login_successful');
-        },function () {
+        }, function () {
             self.$(".oe_login_pane").fadeIn("fast", function() {
-                self.$el.addClass("oe_login_invalid");
+                self.show_error("Invalid username or password");
             });
         });
     },
+    show_error: function(message) {
+        this.$el.addClass("oe_login_invalid");
+        this.$(".oe_login_error_message").text(message);
+    },
+    hide_error: function() {
+        this.$el.removeClass('oe_login_invalid');
+    },
 });
 instance.web.client_actions.add("login", "instance.web.Login");
 
diff --git a/addons/web/static/src/js/view_form.js b/addons/web/static/src/js/view_form.js
index af1980b7b6e..73f3d0b8ca7 100644
--- a/addons/web/static/src/js/view_form.js
+++ b/addons/web/static/src/js/view_form.js
@@ -16,6 +16,14 @@ instance.web.form = {};
  * Events:
  *     - view_content_has_changed : when the values of the fields have changed. When
  *     this event is triggered all fields should reprocess their modifiers.
+ *     - field_changed:<field_name> : when the value of a field change, an event is triggered
+ *     named "field_changed:<field_name>" with <field_name> replaced by the name of the field.
+ *     This event is not related to the on_change mechanism of OpenERP and is always called
+ *     when the value of a field is setted or changed. This event is only triggered when the
+ *     value of the field is syntactically valid, but it can be triggered when the value
+ *     is sematically invalid (ie, when a required field is false). It is possible that an event
+ *     about a precise field is never triggered even if that field exists in the view, in that
+ *     case the value of the field is assumed to be false.
  */
 instance.web.form.FieldManagerMixin = {
     /**
@@ -26,6 +34,11 @@ instance.web.form.FieldManagerMixin = {
      * Returns true when the view is in create mode.
      */
     is_create_mode: function() {},
+    /**
+     * Returns the current value of a field present in the view. See the get_value() method
+     * method in FieldInterface for further information.
+     */
+    get_field_value: function(field_name) {},
 };
 
 instance.web.views.add('form', 'instance.web.FormView');
@@ -331,7 +344,9 @@ instance.web.FormView = instance.web.View.extend(instance.web.form.FieldManagerM
 
         _(this.fields).each(function (field, f) {
             field._dirty_flag = false;
+            field._inhibit_on_change_flag = true;
             var result = field.set_value(self.datarecord[f] || false);
+            field._inhibit_on_change_flag = false;
             set_values.push(result);
         });
         return $.when.apply(null, set_values).pipe(function() {
@@ -580,7 +595,9 @@ instance.web.FormView = instance.web.View.extend(instance.web.form.FieldManagerM
                 if (field) {
                     var value_ = result.value[f];
                     if (field.get_value() != value_) {
+                        field._inhibit_on_change_flag = true;
                         field.set_value(value_);
+                        field._inhibit_on_change_flag = false;
                         field._dirty_flag = true;
                         if (!_.contains(processed, field.name)) {
                             this.do_onchange(field, processed);
@@ -940,6 +957,15 @@ instance.web.FormView = instance.web.View.extend(instance.web.form.FieldManagerM
                 return self.dataset.parent_view.recursive_save();
         });
     },
+    recursive_reload: function() {
+        var self = this;
+        var pre = $.when();
+        if (self.dataset.parent_view)
+                pre = self.dataset.parent_view.recursive_reload();
+        return pre.pipe(function() {
+            return self.reload();
+        });
+    },
     is_dirty: function() {
         return _.any(this.fields, function (value_) {
             return value_._dirty_flag;
@@ -1043,6 +1069,12 @@ instance.web.FormView = instance.web.View.extend(instance.web.form.FieldManagerM
             this.translatable_fields.push(field);
         }
         field.on('changed_value', this, function() {
+            if (field.is_syntax_valid()) {
+                this.trigger('field_changed:' + name);
+            }
+            if (field._inhibit_on_change_flag) {
+                return;
+            }
             field._dirty_flag = true;
             if (field.is_syntax_valid()) {
                 this.do_onchange(field);
@@ -1057,6 +1089,9 @@ instance.web.FormView = instance.web.View.extend(instance.web.form.FieldManagerM
     is_create_mode: function() {
         return this.get("actual_mode") === "create";
     },
+    get_field_value: function(field_name) {
+        return this.fields[field_name].get_value();
+    },
 });
 
 /**
@@ -1809,7 +1844,7 @@ instance.web.form.WidgetButton = instance.web.form.FormWidget.extend({
         return this.view.do_execute_action(
             _.extend({}, this.node.attrs, {context: context}),
             this.view.dataset, this.view.datarecord.id, function () {
-                self.view.reload();
+                self.view.recursive_reload();
             });
     },
     check_disable: function() {
@@ -1827,7 +1862,8 @@ instance.web.form.WidgetButton = instance.web.form.FormWidget.extend({
  *     - force_readonly: boolean, When it is true, the field should always appear
  *      in read only mode, no matter what the value of the "readonly" property can be.
  * Events:
- *     - changed_value: triggered to inform the view to check on_changes
+ *     - changed_value: triggered when the value of the field has changed. This can be due
+ *      to a user interaction or a call to set_value().
  *
  */
 instance.web.form.FieldInterface = {
@@ -1939,8 +1975,7 @@ instance.web.form.AbstractField = instance.web.form.FormWidget.extend(instance.w
         this.on("change:force_readonly", this, test_effective_readonly);
         test_effective_readonly.call(this);
         this.on("change:value", this, function() {
-            if (! this._inhibit_on_change)
-                this.trigger('changed_value');
+            this.trigger('changed_value');
             this._check_css_flags();
         });
     },
@@ -1975,9 +2010,7 @@ instance.web.form.AbstractField = instance.web.form.FormWidget.extend(instance.w
         this.$el.toggleClass('oe_form_required', this.get("required"));
     },
     set_value: function(value_) {
-        this._inhibit_on_change = true;
         this.set({'value': value_});
-        this._inhibit_on_change = false;
     },
     get_value: function() {
         return this.get('value');
@@ -3312,6 +3345,7 @@ instance.web.form.FieldOne2Many = instance.web.form.AbstractField.extend({
             this.dataset.index = 0;
         }
         self.is_setted.resolve();
+        this.trigger_on_change();
         return self.reload_current_view();
     },
     get_value: function() {
@@ -3364,7 +3398,7 @@ instance.web.form.FieldOne2Many = instance.web.form.AbstractField.extend({
         }, this));
     },
     is_syntax_valid: function() {
-        if (!this.viewmanager.views[this.viewmanager.active_view])
+        if (! this.viewmanager || ! this.viewmanager.views[this.viewmanager.active_view])
             return true;
         var view = this.viewmanager.views[this.viewmanager.active_view].controller;
         switch (this.viewmanager.active_view) {
@@ -4792,7 +4826,10 @@ instance.web.form.FieldStatus = instance.web.form.AbstractField.extend({
     get_selection: function() {
         var self = this;
         if (this.field.type == "many2one") {
-            var domain = new instance.web.CompoundDomain(['|'], self.build_domain(), [['id', '=', self.selected_value]]);
+            var domain = [];
+            if(this.field.domain || this.node.attrs.domain) {
+                domain = new instance.web.CompoundDomain(['|'], self.build_domain(), [['id', '=', self.selected_value]]);
+            }
             var ds = new instance.web.DataSetSearch(this, this.field.relation, self.build_context(), domain);
             ds.read_slice(['name'], {}).done( function (records) {
                 for(var i = 0; i < records.length; i++) {
diff --git a/addons/web/static/src/xml/base.xml b/addons/web/static/src/xml/base.xml
index f0b9d624607..b02fa62e12a 100644
--- a/addons/web/static/src/xml/base.xml
+++ b/addons/web/static/src/xml/base.xml
@@ -61,7 +61,7 @@
 <t t-name="Login">
     <div class="oe_login">
         <div class="oe_login_bottom"> </div>
-        <div class="oe_login_error_message">Invalid username or password</div>
+        <div class="oe_login_error_message"/>
         <div class="oe_login_pane">
             <div class="oe_login_logo"><img src='/web/static/src/img/logo2.png'/></div>
             <form action="" method="post">