diff -Naur event.orig/eventblock.js event/eventblock.js
--- event.orig/eventblock.js	2007-03-26 20:14:45.000000000 +0200
+++ event/eventblock.js	2007-06-28 20:19:53.701150368 +0200
@@ -76,6 +76,7 @@
 
     if (result!=undefined && result!="abort") {
       blockUpdate.element.html(xmlHttp.responseText);
+      blockUpdate.dontUpdate = true;
     }
     else if (result == "abort") {
       blockUpdate.element.html(this.oldHTML);