ity to select only certain columns
                (using a <a href=
                                    "//datatables.net/reference/type/column-selector"><code class="type"
                                                                                            title="DataTables parameter type">column-selector</code></a>).
                In this example only the
                visible columns are used for the printing.</p>
            <p>The column visibility buttons (<a href="//datatables.net/referen