diff --git a/APPL/BEZ/bez_edit_afspraak.asp b/APPL/BEZ/bez_edit_afspraak.asp
index 15314a9de1..af0ad28a5f 100644
--- a/APPL/BEZ/bez_edit_afspraak.asp
+++ b/APPL/BEZ/bez_edit_afspraak.asp
@@ -153,7 +153,7 @@ else
   <body id="editbody">
 <%  var buttons =  [ {title: L("lcl_submit"), icon: "opslaan.png", action:"bez_submit()", singlepress: true, id:"btn_bez_submit"},
                      {title: L("lcl_cancel"), icon: "undo.png", action:"bez_cancel()"} ];
-    IFRAMER_HEADER(L("lcl_bez_frame"),buttons);
+    IFRAMER_HEADER(L("lcl_bez_frame"), buttons);
 %>  <div id="edit">
 <%
       maxPast = ((urole == "fe")? 0 : S("vis_afspraak_limiet"));
diff --git a/APPL/Shared/iface.inc b/APPL/Shared/iface.inc
index 8b67ce7bc9..0ca1f0446d 100644
--- a/APPL/Shared/iface.inc
+++ b/APPL/Shared/iface.inc
@@ -179,22 +179,36 @@ function IFRAMER(id, url, params)
 
 function IFRAMER_HEADER(titel, buttons, params)
 {
+    params = params || {};
     var iscoll = getQParamInt("collapsed",0)==1;
 %>
     <script>
-        // in een 2de ready() want deze moet worden uitgevoerd na andere $(document).ready()'s
-        $(function()
+
+      function moveHeaderToFooter()
+      {
+        headertofooter();
+        <% if (iscoll) { %>
+           $(".fcltframeheader").next().toggle();
+        <% } %>
+      }
+
+      $(function()
+      {
+        if ($.active > 0) // Has active ajax calls?
         {
-          $(function()
+          // Then await those calls first (UWVA#51618)
+          $(document).ajaxStop(function()
           {
-            headertofooter();
-            <% if (iscoll) { %>
-               $(".fcltframeheader").next().toggle(); <%
-            }
-            %>
-          })
-        });
+            $(this).unbind("ajaxStop");
+            moveHeaderToFooter();
+          });
+        }
+        else
+          moveHeaderToFooter();
+      });
+
     </script>
+
       <div class="fcltframeheader <%= iscoll && !(params && params.nocollaps) ? ' collapsed' : ''%>" <%=params && params.nocollaps? "" : "onclick=\"$(this).nextAll('#collapseblock').eq(0).toggle();$(this).toggleClass('collapsed');FcltMgr.resized(window);updateTableHeaders()\""%>>
         <span style="float:left"><nobr><%=titel %>&nbsp;<span id="iframerextratitle"></span></nobr></span><%
         if (buttons) {
