Display A Success Message From An Application Process

Question

Apex 3.2
I have an on demand application process, which is resetting my application, except application items
BEGIN
   FOR c IN (SELECT page_id
               FROM apex_application_pages
              WHERE application_id = :app_id)
   LOOP
      apex_util.clear_page_cache (c.page_id);
   END LOOP;
:F270_REFRESH_INTERVAL := null;
END;
I have a list item that calls some javascript on page zero
<script type="text/javascript">
function resetapp(){
var answer=confirm("Do you really want to reset the application ?");
if(answer==true) {
var get = new htmldb_Get(null, null, 'APPLICATION_PROCESS=RESET_APPLICATION');
var gReturn = get.get();
redirect('f?p=&APP_ID.:1:&APP_SESSION.');
</script>
The user clicks on the item in the list. A confirmation appear and when they click ok,
then the on demand process runs and they are directed to page 1.
This is all working ok.
My problem is that I would like to display a message (a sucesss message) on page 1.
I have an unconditional branch on page 1 with the tick box checked for include process message.
I have tried the following in my application process, but none seem to work.
apex_application.g_print_success_message := 'Application Has Been Reset';
htp.prn('Application Has Been Reset');
HTP.P('Application Has Been Reset');
How can I do this ?
Gus

Answer 1

Can anyone help ?
Gus