<{foreach name=outer item=category from=$xoops_notification.categories}>
<{foreach name=inner item=event from=$category.events}>
<{if $smarty.foreach.inner.first}>
<{$category.title}>
<{/if}>
<{counter assign=index}>
checked="checked"<{/if}>>
<{$event.caption}>
<{/foreach}>
<{/foreach}>