diff --git a/ChangeLog b/ChangeLog
index 6d57dfc86..0d4019ced 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2010-03-11  Wolfgang Sourdeau  <wsourdeau@inverse.ca>
+
+	* UI/WebServerResources/generic.js (SetLogMessage): we must attach
+	the message to the container even when the message is null.
+
 2010-03-10  Wolfgang Sourdeau  <wsourdeau@inverse.ca>
 
 	* UI/WebServerResources/SchedulerUI.js (updateCalendarProperties):
diff --git a/UI/WebServerResources/generic.js b/UI/WebServerResources/generic.js
index 5be395279..6df83a1dc 100644
--- a/UI/WebServerResources/generic.js
+++ b/UI/WebServerResources/generic.js
@@ -1783,7 +1783,7 @@ function SetLogMessage(containerId, message, msgType) {
             container.typeClass = typeClass;
             container.addClassName(typeClass);
         }
-        if (!container.message || container.message != message) {
+        if (container.message != message) {
             while (container.lastChild) {
                 container.removeChild(container.lastChild);
             }
@@ -1794,8 +1794,8 @@ function SetLogMessage(containerId, message, msgType) {
                     container.appendChild(document.createElement("br"));
                     container.appendChild(document.createTextNode(sentences[i]));
                 }
-                container.message = message;
             }
+            container.message = message;
         }
     }
 }