--- a/src/browser/public/libervia.css	Fri Jan 15 15:42:37 2016 +0100
+++ b/src/browser/public/libervia.css	Fri Jan 15 15:42:37 2016 +0100
@@ -1200,6 +1200,14 @@
     background-color: #fff;
 }
 
+.notifInfo {
+    background-color: #66FF00;
+}
+
+.notifWarning {
+    background-color: #DB1616;
+}
+
 /* Tab panel */
 
 .gwt-TabPanel {

--- a/src/browser/sat_browser/main_panel.py	Fri Jan 15 15:42:37 2016 +0100
+++ b/src/browser/sat_browser/main_panel.py	Fri Jan 15 15:42:37 2016 +0100
@@ -54,26 +54,31 @@
     def __init__(self):
         self._popup = None
         self._timer = Timer(notify=self._timeCb)
+        self.timeout = None
+        self._html = None
+        self._last_type = None
+        self._last_html = None
 
     def showWarning(self, type_=None, msg=None, duration=2000):
         """Display a popup information message, e.g. to notify the recipient of a message being composed.
+
         If type_ is None, a popup being currently displayed will be hidden.
         @type_: a type determining the CSS style to be applied (see _showWarning)
         @msg: message to be displayed
+        @duration(int, None): time (in ms) to display the message
         """
         if type_ is None:
-            self.__removeWarning()
+            self._removeWarning()
             return
-        if not self._popup:
+
+        self.timeout = duration
+
+        if not self._popup or self._last_type != type_ or self._last_html != msg:
             self._showWarning(type_, msg)
-        elif (type_, msg) != self._popup.target_data:
-            self._timeCb(None)  # we remove the popup
-            self._showWarning(type_, msg)
-
-        self._timer.schedule(duration)
 
     def _showWarning(self, type_, msg):
         """Display a popup information message, e.g. to notify the recipient of a message being composed.
+
         @type_: a type determining the CSS style to be applied. For now the defined styles are
         "NONE" (will do nothing), "PUBLIC", "GROUP", "STATUS" and "ONE2ONE".
         @msg: message to be displayed
@@ -91,31 +96,44 @@
             style = "targetStatus"
         elif type_ == "ONE2ONE":
             style = "targetOne2One"
+        elif type_ == "INFO":
+            style = "notifInfo"
+        elif type_ == "WARNING":
+            style = "notifWarning"
         else:
             log.error("unknown message type")
             return
-        contents = HTML(msg)
+
+        self._last_html = msg
+
+        if self._popup is None:
+            self._popup = dialog.PopupPanelWrapper(autoHide=False, modal=False)
+            self._html = HTML(msg)
+            self._popup.add(self._html)
 
-        self._popup = dialog.PopupPanelWrapper(autoHide=False, modal=False)
-        self._popup.target_data = (type_, msg)
-        self._popup.add(contents)
-        self._popup.setStyleName("warningPopup")
-        if style:
+            left = 0
+            top = 0  # max(0, self.getAbsoluteTop() - contents.getOffsetHeight() - 2)
+            self._popup.setPopupPosition(left, top)
+            self._popup.show()
+        else:
+            self._html.setHTML(msg)
+
+        if type_ != self._last_type:
+            self._last_type = type_
+            self._popup.setStyleName("warningPopup")
             self._popup.addStyleName(style)
 
-        left = 0
-        top = 0  # max(0, self.getAbsoluteTop() - contents.getOffsetHeight() - 2)
-        self._popup.setPopupPosition(left, top)
-        self._popup.show()
+        if self.timeout is not None:
+            self._timer.schedule(self.timeout)
 
     def _timeCb(self, timer):
         if self._popup:
             self._popup.hide()
-            del self._popup
             self._popup = None
 
-    def __removeWarning(self):
+    def _removeWarning(self):
         """Remove the popup"""
+        self._timer.cancel()
         self._timeCb(None)