diff --git a/modoboa/extensions/admin/static/admin/js/admin.js b/modoboa/extensions/admin/static/admin/js/admin.js
index 6888f565f..e57bdf823 100644
--- a/modoboa/extensions/admin/static/admin/js/admin.js
+++ b/modoboa/extensions/admin/static/admin/js/admin.js
@@ -191,6 +191,7 @@ var Identities = function(options) {
 Identities.prototype = {
     initialize: function(options) {
         Admin.prototype.initialize.call(this, options);
+        this.domain_list = [];
         this.register_tag_handler("idt", this.generic_tag_handler);
         this.register_tag_handler("grp", this.grp_tag_handler);
     },
@@ -243,10 +244,29 @@ Identities.prototype = {
         return false;
     },
 
+    /**
+     * Retrieve a list of domain from the server.
+     *
+     * @this Identities
+     * @return {Array} a list of domain names
+     */
+    get_domain_list: function() {
+        if (!this.domain_list.length) {
+            $.ajax({
+            url: this.options.domain_list_url,
+                dataType: "json",
+                async: false
+            }).done($.proxy(function(data) {
+                this.domain_list = data;
+            }, this));
+        }
+        return this.domain_list;
+    },
+
     simpleuser_mode: function() {
         $("#id_username").autocompleter({
             from_character: "@",
-            choices: get_domains_list
+            choices: $.proxy(this.get_domain_list, this)
         });
         $("#id_email").addClass("disabled")
             .attr("readonly", "")
@@ -279,11 +299,11 @@ Identities.prototype = {
     mailform_init: function() {
         $("#id_aliases").autocompleter({
             from_character: "@",
-            choices: get_domains_list
+            choices: $.proxy(this.get_domain_list, this)
         }).dynamic_input();
         $("#id_email").autocompleter({
             from_character: "@",
-            choices: get_domains_list
+            choices: $.proxy(this.get_domain_list, this)
         });
         if ($("#id_role").length) {
             $("#id_role").trigger("change");
@@ -292,7 +312,7 @@ Identities.prototype = {
         }
         $("#id_domains")
             .autocompleter({
-                choices: get_domains_list
+                choices: $.proxy(this.get_domain_list, this)
             })
             .dynamic_input();
         activate_widget.call($("#id_quota_act"));
@@ -335,7 +355,7 @@ Identities.prototype = {
     aliasform_cb: function() {
         $("#id_email").autocompleter({
             from_character: "@",
-            choices: get_domains_list
+            choices: $.proxy(this.get_domain_list, this)
         });
         $("#id_recipients").dynamic_input();
         $(".submit").on('click', $.proxy(function(e) {
diff --git a/modoboa/extensions/admin/templates/admin/identities.html b/modoboa/extensions/admin/templates/admin/identities.html
index 632a6f31c..77d45299d 100644
--- a/modoboa/extensions/admin/templates/admin/identities.html
+++ b/modoboa/extensions/admin/templates/admin/identities.html
@@ -4,20 +4,11 @@
 {{ block.super }}
 <script type="text/javascript" src="{{ STATIC_URL }}js/autocompleter.js"></script>
 <script type="text/javascript">
-function get_domains_list(container) {
-    $.getJSON("{% url 'modoboa.extensions.admin.views.domain.domains_list' %}", function(data) {
-        container.value = data;
-    });
-}
-
-function get_account_list(container) {
-    $.getJSON("{% url 'modoboa.extensions.admin.views.identity.accounts_list' %}", function(data) {
-        container.value = data;
-    });
-}
-
 $(document).ready(function() {
-    admin = new Identities();
+    admin = new Identities({
+        domain_list_url: "{% url 'modoboa.extensions.admin.views.domain.domains_list' %}",
+        load_page_url: "{% url 'modoboa.extensions.admin.views.identity._identities' %}"
+    });
 });
 </script>
 {% extra_static_content "identities" user %}
diff --git a/modoboa/lib/permissions.py b/modoboa/lib/permissions.py
index 40cc67cde..a4b3487d3 100644
--- a/modoboa/lib/permissions.py
+++ b/modoboa/lib/permissions.py
@@ -4,7 +4,6 @@ from django.utils.translation import ugettext as _
 from django.db import IntegrityError
 from modoboa.core.models import ObjectAccess, User
 from modoboa.lib import events
-from modoboa.lib.exceptions import ModoboaException
 
 
 def get_account_roles(user, account=None):
@@ -19,7 +18,7 @@ def get_account_roles(user, account=None):
     """
     std_roles = [("SimpleUsers", _("Simple user"))]
     if user.is_superuser:
-        std_roles += [("SuperAdmins",  _("Super administrator"))]
+        std_roles += [("SuperAdmins", _("Super administrator"))]
     filters = events.raiseQueryEvent(
         'UserCanSetRole', user, 'DomainAdmins', account
     )
diff --git a/modoboa/static/js/autocompleter.js b/modoboa/static/js/autocompleter.js
index 0b826cbe8..1467343b4 100644
--- a/modoboa/static/js/autocompleter.js
+++ b/modoboa/static/js/autocompleter.js
@@ -148,7 +148,7 @@
                     evt.preventDefault();
                     this.activate_next();
                     break;
-            };
+            }
         },
 
         keyup: function(evt) {