x;
  this.addChild( container );
  </pre></div>
  
  <p><strong>Advanced Client Options:</strong></p>
  <p>Optional client configuration parameters allow a developer to specify
  behaviors for individual children of the target container. To set these
  advanced options, one must call <code>addClient()</code> on the BoxLayout
  instance and pass the child to configure along with an object specifying
  the configuration parameters. Several client parameters are available to
  the BoxLayout algorithm:</p>
  
 