Ajax call failed, htmlDB_get return null

Question

Hi,
I'm having some problem at ajax call. I'm always getting null return value after htmldb_Get.get() function.
Tried to follow some examples in this forum,
in Html header, i have:
<script language="JavaScript" type="text/javascript">
function simple()
var ajaxRequest = new htmldb_Get(null,html_GetElement('pFlowId').value,'APPLICATION_PROCESS=simple',0);
alert('ajaxRequestis '+ ajaxRequest);
ajaxResult = ajaxRequest.get();
alert('ajaxResult is '+ ajaxResult);
if (ajaxResult)
html_GetElement('UserListDiv').innerHTML = ajaxResult;
else
html_GetElement('UserListDiv').innerHTML = 'null';
ajaxRequest = null;
</script>
The application level process "simple" is really simple (on_demand):
begin
-- Set the MIME type
owa_util.mime_header( 'application/xml', FALSE );
-- Close the HTTP Header
owa_util.http_header_close;
htp.prn('<?xml version="1.0" ?><abc><def>123</def></abc>');
htmldb_application.g_unrecoverable_error := true;
end;
After runing the page, the first alert print I've got "object Object".
and the second is always null.
I've been working on that for days, and I can not follow Carl's cascading select list example for the same reason, please advice!!!

Answer 1

Did this ever get figured out? I'm doing a cascading LOV and coming back with an emply LOV. I put alerts in as well as am definitely not getting any thing back from the application process.
function get_AJAX_SELECT_XML(pThis,pSelect){
var l_Return = null;
var l_Select = $x(pSelect);
var get = new htmldb_Get(null,$x('pFlowId').value,'APPLICATION_PROCESS=otn_Select_XML',0);
get.add('TEMPORARY_ITEM',pThis.value);
gReturn = get.get('XML');
alert_text = get.get();
alert(alert_text);
if(gReturn && l_Select){
var l_Count = gReturn.getElementsByTagName("option").length;
alert_text = l_Count;
alert(alert_text);
... not including rest of the function...
For now, simplified application process just to see if anything was being returned...
declare
l_counter number;
l_o_name varchar2(2000);
begin
owa_util.mime_header('text/xml', FALSE );
htp.p('Cache-Control: no-cache');
htp.p('Pragma: no-cache');
owa_util.http_header_close;
htp.prn('<select>');
htp.prn('<option value="' || rec.id || '">' || rec.name || '</option>');
end loop;
htp.prn('<option value="11111111">test</option>');
htp.prn('</select>');
end;