[dataTables.js] row 노출개수 lengthMenu custom

$('#table_paging').DataTable({
    language: {
        "lengthMenu": '<select class="form-control">'+
            '<option value="10">10쪽</option>'+
            '<option value="20">20쪽</option>'+
            '<option value="30">30쪽</option>'+
            '<option value="40">40쪽</option>'+
            '</select>'
    }
});