othing. When a String is supplied, the
                    position
                    of the node corresponding to the ID is returned. When nothing is supplied, the positions of all
                    nodes
                    are returned.
                </td>
            </tr>
            <tr class="collapsible toggle" onclick="toggleTable('methodTable','storePositions', this);">
                <td colspan="2"><span parent="storePositions" class="right-caret" id="method_storePositions"></span> storeP