{assign var="ispackage" value=false}

        {foreach from=$packageindex item=onepackage}

            {if in_array($package, $onepackage)}{assign var="ispackage" value=true}{/if}

        {/foreach}

        {if $ispackage}<li><a href="{$subdir}classtrees_{$package}.html" class="menu">class tree: {$package}</a></li>

        <li><a href="{$subdir}elementindex_{$package}.html" class="menu">index: {$package}</a></li>{/if}

        <li><a href="{$subdir}elementindex.html" class="menu">all elements</a></li>