{nav type="2" parent_id="0"} {nav:loop}

[nav:name]

{if:OW.int("[nav:children]")>0} {nav2 parent_id="[nav:nav_id]"} {nav2:loop}

[nav2:name]

{/nav2:loop} {/nav2} {/if}

{/nav:loop} {/nav}