public function postPos()
 {
     $q = strtolower(Input::get('term'));
     if (!$q) {
         return;
     }
     $data['response'] = 'false';
     $query = Pos::where('pos_id', 'LIKE', "%{$q}%")->orWhere('pos_description', 'LIKE', "%{$q}%")->get();
     if ($query) {
         $data['message'] = array();
         $data['response'] = 'true';
         foreach ($query as $row) {
             $records = $row->pos_description . ' (' . $row->pos_id . ')';
             $data['message'][] = array('label' => $records, 'value' => $row->pos_id);
         }
     }
     echo json_encode($data);
 }