application/modules/menu/templates/cats_list.tpl
{foreach $tree as $item}
<a title="{$item.name}" href="#" onclick="set_category_data({$item.id}); return false;" id="cat_{$item.id}" style="display:block;font-size:13px;padding:5px;">
{for $i=0; $i < $item['level']; $i++}-{/for} {$item.name}
</a>
{if $item['subtree']}
{$CI->template->assign('tree',$item['subtree'])}
{include_tpl('cats_list')}
{/if}
{/foreach}