public function index() {

        if ($this->input->is_ajax_request()) {
            $aColumns = array('accountid', 'name', 'description', 'parent');
            $sIndexColumn = "id";
            $sTable = 'tblledgergroups';
            $where = array('WHERE type="Ledger"');
            
            $result = data_tables_init($aColumns, $sIndexColumn, $sTable, array(), $where, array('id'));
            $output = $result['output'];
            $rResult = $result['rResult'];
            
            foreach ($rResult as $aRow) {
                $row = array();
                for ($i = 0; $i < count($aColumns); $i++) {
                    $_data = $aRow[$aColumns[$i]];

                    if ($aColumns[$i] == 'parent') {
                        $_data = $this->ledgers_model->get_parent($aRow['parent']);
                    }

                    $row[] = $_data;
                }

                $options = icon_btn('admin/ledgers/ledger/' . $aRow['id'], 'pencil-square-o');
                $row[] = $options .= icon_btn('admin/ledgers/delete/' . $aRow['id'], 'remove', '', array('data-toggle' => 'tooltip', 'title' => _l('ledger_delete_tooltip')));

                $output['aaData'][] = $row;
            }

           echo json_encode($output);
            die(); 
        }


        $data['title'] = _l('list_ledgers');
        $this->load->view('admin/ledgers/manage', $data);
    }