how return a second value from autocomplete function?

how return a second value from autocomplete function?

Hello !
sorry for my English.
I am new to ajax and jquery, as I can return a second value of the autocomplete function?

the script


<script type="text/javascript">
        $("#nombre").autocomplete("<?php echo base_url()?>transportistas_controller/autocomplete_partidos");

        $("#nombre").blur(function(){
            window.opener.$("#partidonum").val($(this).val());
            window.close();

});
</script>









the function

function autocomplete_partidos() {
        $nombre = $this->input->post('q');
        $this->db->order_by('cDes');
        $this->db->limit(10);
        $this->db->like('lower(cDes)', strtolower($nombre), 'both');
        $partidos = $this->db->get("cerepartidos")->result();
        foreach ($partidos as $partido) {
            echo "$partido->cDes - $partido->cCod\n";
        }
        }   
}