--- a/src/browser/sat_browser/blog.py	Fri Feb 06 19:23:08 2015 +0100
+++ b/src/browser/sat_browser/blog.py	Fri Feb 06 19:25:17 2015 +0100
@@ -414,14 +414,10 @@
         assert(first.type == 'main_item')
         return first if first.empty else None
 
-    @classmethod
-    def registerClass(cls):
-        base_widget.LiberviaWidget.addDropKey("GROUP", cls.createPanel)
-        base_widget.LiberviaWidget.addDropKey("CONTACT_TITLE", cls.createMetaPanel)
+    @staticmethod
+    def onGroupDrop(host, item):
+        """Generic panel creation for one, several or all groups (meta).
 
-    @classmethod
-    def createPanel(cls, host, item):
-        """Generic panel creation for one, several or all groups (meta).
         @parem host: the SatWebFrontend instance
         @param item: single group as a string, list of groups
          (as an array) or None (for the meta group = "all groups")
@@ -430,17 +426,11 @@
         items_ = tuple(item) if isinstance(item, list) else (() if item is None else (item,))
         type_ = 'ALL' if items_ == () else 'GROUP'
         # XXX: pyjamas doesn't support use of cls directly
-        _new_panel = MicroblogPanel(host, _items)
-        host.FillMicroblogPanel(_new_panel)
-        host.bridge.call('getMassiveLastMblogs', _new_panel.massiveInsert, _type, _items, 10)
-        host.setSelected(_new_panel)
-        _new_panel.refresh()
-        return _new_panel
-
-    @classmethod
-    def createMetaPanel(cls, host, item):
-        """Needed for the drop keys to not be mixed between meta panel and panel for "Contacts" group"""
-        return MicroblogPanel.createPanel(host, None)
+        widget = host.widgets.getOrCreateWidget(MicroblogPanel, items_, profile=C.PROF_KEY_NONE, on_new_widget=None, on_existing_widget=C.WIDGET_RECREATE)
+        host.FillMicroblogPanel(widget)
+        host.bridge.getMassiveLastMblogs(type_, items_, 10, profile=C.PROF_KEY_NONE, callback=widget.massiveInsert)
+        widget.refresh() # FIXME: needed ?
+        return widget
 
     @property
     def accepted_groups(self):
@@ -716,3 +706,9 @@
             if self.host.contact_lists[self.profile].isEntityInGroup(jid_, group):
                 return True
         return False
+
+
+base_widget.LiberviaWidget.addDropKey("GROUP", MicroblogPanel.onGroupDrop)
+
+# Needed for the drop keys to not be mixed between meta panel and panel for "Contacts" group
+base_widget.LiberviaWidget.addDropKey("CONTACT_TITLE", lambda host, item: MicroblogPanel.onGroupDrop(host, None))