{if $item->menu}
    <nav id="sidenav">
        <ul id="usernav" class="nav nav-tabs nav-stacked">
            {foreach from = $item->menu item = 'menu'}
                {include file = 'UserDoc/navigation-block-item.tpl' menu = $menu}
            {/foreach}
        </ul>
    </nav>
{/if}