帝国cms的灵动标签怎么判断栏目ID

<?php 
if($navinfor[classid]==15 || $navinfor[classid]==16) 
{ 
echo &#39;<p class="img-listing-dis">&#39;.$navinfor[flashsay].&#39;</p>&#39;; 
} 
else 
{ 
echo &#39;<p class="img-listing-dis">&#39;.$navinfor[flashsay].&#39;</p>&#39;; 
} 
?>