<ul id ="directory-toc" class="directory-toc">
	{{#recursive children}}
		<li>
			<div id={{id}} pid={{up_id}}>
				<a>{{cha_name}}</a>
				{{#if children}}<span class="collapsed"></span>{{/if}}
			</div>
			{{#if children}}
				<ul style="display:none">{{{recursive children}}}</ul>
			{{/if}}
		</li>
	{{/recursive}}
</ul>
