begin
  owa_util.mime_header('text/html', FALSE);
  owa_cookie.send(
    name => 'ITMG_FIRM_'||:P520_PRICE_FIRM,
    value => :P520_ITMG);
end;

   
declare
  l_cookie owa_cookie.cookie;
begin
  l_cookie := owa_cookie.get('ITMG_FIRM_'||:P520_PRICE_FIRM);
  if l_cookie.num_vals > 0 then    
    :P520_ITMG := l_cookie.vals(1); 
  end if;