bootstrap datatable custom dropdown filters

Question

I'm using bootstrap datatables in codeigniter project in footer i included this datatables js and initialized like

$('.datatable').dataTable({
            "sDom": "<'row-fluid'<'span6'l><'span6'f>r>t<'row-fluid'<'span12'i><'span12 center'p>>",
            "sPaginationType": "bootstrap",
            "oLanguage": {
            "sLengthMenu": "_MENU_ records per page"
            }
        } );

Now i want custom filters in required list page on required column i tried as

<select id="s" name="s">
<option value="1">Hyd</option>
<option value="2">Warangal</option>
</select>

and js as

<script>
$(document).ready(function(){
    $('#s').change( function() {
        //alert($(this).val());
oTable.fnFilter( $(this).val(), 2 );
} );
});
</script>

I want to filter using drop downlist for city.

Solution

Hope this is what you looking for, fiddle

$(document).ready(function() {
    var table =  $('#example').DataTable();

    $('#dropdown1').on('change', function () {
        table.columns(1).search( this.value ).draw();
    } );
    $('#dropdown2').on('change', function () {
        table.columns(2).search( this.value ).draw();
    } );
});

Peace!