News Ticker &PX_ITEM. not populating

Question

I have created a newsticker from Denes' page using &PX_ITEM. PX_ITEM is created from the following process. On Load - After Footer.:
SELECT
EXTRACT(DAY FROM TO_TIMESTAMP(:P1_END_DT,'MMDDYYYY HH24:MI') -
TO_TIMESTAMP(:P1_BEG_DT,'MMDDYYYY HH24:MI')) || ' days, ' ||
EXTRACT (HOUR FROM TO_TIMESTAMP(:P1_END_DT,'MMDDYYYY HH24:MI') -
TO_TIMESTAMP(:P1_BEG_DT,'MMDDYYYY HH24:MI')) || ' hours, ' ||
EXTRACT (MINUTE FROM TO_TIMESTAMP(:P1_END_DT,'MMDDYYYY HH24:MI') -
TO_TIMESTAMP(:P1_BEG_DT,'MMDDYYYY HH24:MI')) || ' minutes' Duration
into :P1_REMAINING_TIME
FROM dual;
END_DT is defaulted to 03222010 07:00 mask MMDDYYYY HH24:MI.
BEG_DT has a process to insert sysdate,'MMDDYYYY HH24:MI' into it on load, before header.
It works well, after if you refresh the page. I haven't been able to figure out how to make it work without the user needing to refresh the page.
END_DT and BEG_DT load ok, but REMAINING_TIME stays null until you refresh the page.
Can anyone give me an idea how to set a process to refresh the page, or use the META HTTP-EQUIV to run only on load, or some other solution?
Thank you all so much

Answer 1

Per the HTML specification, the values of unchecked checkboxes (and disabled controls) are not POSTed on page submit. You therefore need to compute values for the unchecked checkbox items prior to the insert row process. This can be done using either a computation for each item, or a process that handles all of them.
Computations would be PL/SQL Expressions:
coalesce(:p2_item1, '0')
A process would include an assignment for each item:
begin
  :p2_item1 := coalesce(:p2_item1, '0');
  :p2_item2 := coalesce(:p2_item2, '0');
end;
IIRC APEX 4.x handles this automatically, and as 3.2 is out of support, you are recommended to upgrade to the latest 4.2 release.