title: Calling the zoom in and out of context menu from custom button in flex3
body: <p>I want to call the zoom in and zoom out function of context menu from custom button In adobe flex application.</p>
  
  <p>Code something like this :</p>
  
  <pre><code>onZoomInButtonClick()
  {
  this.contextMenu.customItems.zoom.doIn();
  }
  </code></pre>