$timesheet_id = $fields['timesheet_id'];
$comment = $fields['comment'];
$sql = "update tt_timesheets set approve_status = 1, approve_comment = ".$mdb2->quote($comment).
$timesheet_id = $fields['timesheet_id'];
$comment = $fields['comment'];
$sql = "update tt_timesheets set approve_status = 1, approve_comment = ".$mdb2->quote($comment).