I have a template with the date selection :
{$field_descr_date}:
{html_select_date time=$startdate start_year="-0" end_year="+2" prefix="startdate_"}
So far so good, the date is displayed nicely in my form. However when I process the entries I receive all fields but NOT the date. I simply do not know how the selected date (Day, Month and Year) are passed back. All other fields I find in the params['xxx'], but not the Date

I tired all sorts of variables ($startdate, $startdate_Year etc.)
Can sombody please point me in the right dierection ?
Thanks
Daniel