Refresh Data

Hello :D:

Well, i have a, probably, stupid problem whit datatables + asp.net mvc4, my script is

$(document).ready(function () {

    var arrayDatos = {
        'canal': $(" ListaCanales ").val(),
        'anio': $(" ListaAnios ").val(),
        'vendedorsigla': $(" #ListaVendedores ").val()
    };

    var datatable = $('informe').dataTable({
        "language": { "url": "http://cdn.datatables.net/plug-ins/28e7751dbec/i18n/Spanish.json" },
        "bFilter": false,
        "processing": true,
        "serverSide": true,
        "ajax": {
            "url": "mensualajax",
            "type": "POST",
            "dataType": "json",
            "data": arrayDatos
        },
        "columns": [                
            { "data": "Mes", "bSortable": false },
            { "data": "TotalCredito" },
            { "data": "TotalClientes" },
            { "data": "Balance7" },
            { "data": "Balance37" },
            { "data": "Balance67" }               

        ],            
    });

    $(" #FiltrarResultados ").click(function () {

        var arrayDatos = {
            'canal': $(" ListaCanales ").val(),
            'anio': $(" ListaAnios ").val(),
            'vendedorsigla': $(" ListaVendedores ").val()
        };

        datatable.fnDraw();
    });
});

basically, arrayDatos is a filter, i need reload the page, but when i apply datatable.fnDraw(), not change the arrayDatos passed to the script (this work by default conf (populate the table with de query) but doesn't work when "click" ).

Best Regards