e that can be dragged by the user.
        Parameter <code>time</code> can be a Date, Number, or String, and is <code>new Date()</code> by default.
        Parameter <code>id</code> can be Number or String and is <code>undefined</code> by default.
        The <code>id</code>code> is added as CSS class name of the custom time bar, allowing to style multiple time bars differently.
        The method returns id of the created bar.
      </td>
    </tr>

    <tr>
      <td>destroy()</td>
      <td>none</td>
   