es or null if node is leaf</td>
                    <td>
                        <pre><code class="javascript">// Expand child nodes
$('#node-2').treegrid('getChildNodes').treegrid('expand');
</code></pre>		  
                    </td>
                </tr>  
                <tr>
                    <td>getDepth</td>
                    <td>Returns the depth of nested branch</td>
                    <td>
                        <pre><code class="javascript">// Expand all nodes 2nd nesting
$('.tree').find('t