// Search at the press of a button
    $('#kt_search').on('click', function(e) {
        e.preventDefault();
        var params = {};
        $('.kt-input').each(function() {
            var i = $(this).data('col-index');

            if (params[i]) {
                params[i] += '|' + $(this).val();
            }
            else {
                params[i] = $(this).val();
            }
        });
        $.each(params, function(i, val) {
            // apply search params to datatable
            if (i == 'all') {
                datatable.search(val ? val : '', false, false);
            } else {
                console.log(datatable.column(i).data())
                console.log(val)
                datatable.column(i).search(val ? val : '', false, false);
            }
        });
        datatable.table().draw();
    });