k="popupCode('PopUpMenu.src/M000030.html');return false;">
          <span class="method-name">collapse_expand</span><span class="method-args">(item)</span>
          </a>
        </div>
      
        <div class="method-description">
          <p>
Recursively collapse/expand a subtree starting from the selected node.
</p>
        </div>
      </div>

      <div id="method-M000025" class="method-detail">
        <a name="M000025"></a>

        <div class="method-heading">
          <a href="PopUpMenu.src/M0