pre-wicket.1.2.5/wicket-extensions/src/main/java/wicket/extensions/markup/html/tree/Tree.html

<wicket:panel>
<div class="wicket-tree">
	<div wicket:id="i"><div class="a_">		
		<span wicket:id="indent"></span><a wicket:id="link"><span wicket:id="image"/></a>
       	<a wicket:id="nodeLink"><span class="icon" wicket:id="icon"></span><span wicket:id="label"></span></a>       	
	</div></div>
</div>
</wicket:panel>