application/modules/navigation/templates/widget_navigation.tpl
{$i=0}
<div>
<b>{lang('Navigation', 'navigation')}:</b>
{foreach $navi_cats as $item}
{$i++}
{if $i < count($navi_cats)}
<a href="{site_url($item.path_url)}">{$item.name}</a> /
{else:}
{$item.name}
{/if}
{/foreach}
</div>