<a:application xmlns:a="http://ajax.org/2005/aml">
    <a:button id="btnTreeSettings"
      skin="header-btn"
      class="panel-settings" />
    <a:menu id="mnuFilesSettings" />
    <a:menu id="mnuCtxTree" />
    
    <a:bar id="winOpenfiles" class="openfiles" height="10" visible="false" />
    <a:bar id="container" class="filetree real" focussable="true" contextmenu="mnuCtxTree" />
</a:application>