How to sort select input dates according to date-eu plug-in?

gbmapo

Hello,
Based on [Individual column searching (select inputs)] (http://www.datatables.net/examples/api/multi_filter_select.html), I finally succeded to make this code work.

$(document).ready(function() {

    var oTable1 = $('#LoA1').dataTable({
        "info": true,
        "paging": false,
        "dom": '<"top"if>',
        "columnDefs": [{
            "targets": [2, 3, 7],
            "orderable": false
        }, {
            "targets": [4, 5],
            "type": 'date-eu'
        }, ],
        orderCellsTop: true,
        initComplete: function() {
            var api = this.api();
            $('#LoA1 thead tr#forFilters th').each(function(i) {
                if (i == 1 || i == 4 || i == 5) {
                    var column = api.column(i);
                    var select = $('<select><option value=""></option></select>').appendTo($(this)).on('change', function() {
                        var val = $.fn.dataTable.util.escapeRegex(
                        $(this).val());
                        column.search(val ? '^' + val + '$' : '', true, false).draw();
                    });
                    column.data().unique().sort().each(function(d, j) {
                        select.append('<option value="' + d + '">' + d + '</option>')
                    });
                }
            });
        }
    });
    var oFH1 = new $.fn.dataTable.FixedHeader(oTable1, {
        "zTop": "0"
    });

});

where columns 4 and 5 are date in DD/MM/YYY format which is the reason why I use date-eu plug-in for sorting these columns.

In line 25, I populate the select inputs keeping unique values and sorting them.

column.data().unique().sort().each(function(d, j) {

My question is: How can I sort the content of the select inputs using the rules of date-eu plug-in and not alphabetically as does sort()?