function action_updateattendance()
{
$atnrecord = array();
$atnrecord['id'] = cm_get_param('atnid', 0);
$atnrecord['classid'] = $clsid;
$atnrecord['userid'] = cm_get_param('userid', 0);
$startyear = cm_get_param('startyear');
$startmonth = cm_get_param('startmonth');
$startday = cm_get_param('startday');
$atnrecord['timestart'] = mktime(0, 0, 0, $startmonth, $startday, $startyear);
$endyear = cm_get_param('endyear');
$endmonth = cm_get_param('endmonth');
$endday = cm_get_param('endday');
$atnrecord['timeend'] = mktime(0, 0, 0, $endmonth, $endday, $endyear);
$atnrecord['note'] = cm_get_param('note', '');
$atn = new attendance($atnrecord);
if (($status = $atn->update()) !== true) {
echo cm_error('Record not updated. Reason: ' . $status->message);
}
}
