一级栏目高亮同时调用二级栏目，灵动标签嵌套实现栏目导航

<nav id="nav">
        <div class="logo">
           <a href="#"><img src="[!--news.url--]zw/img/logo.png" alt=""></a>
                    </div>
                    <ul class="nav">
                        <li class="nav-item active"><a href="#" >首页</a></li>
[e:loop={"select classid,classname,islast from {$dbtbpre}enewsclass where bclassid='0' order by myorder,classid ASC limit 11",0,24,0}]
<?php
$classurl=sys_ReturnBqClassname($bqr,9);//取得栏目地址
$bgcolor="";

if($GLOBALS[navclassid])
{
$fcr=explode('|',$class_r[$GLOBALS[navclassid]][featherclass]);
$topbclassid=$fcr[1]?$fcr[1]:$GLOBALS[navclassid];//取得当前栏目的一级栏目ID
if($bqr[classid]==$topbclassid)
{
$bgcolor="active";
}
}
?>
<li class="nav-item <?=$bgcolor?>">
                    <a href="<?=$classurl?>"><?=$bqr[classname]?></a>
  <?php
if(!$bqr[islast]) //判断是否终极栏目
{
?>
<div class="subMenu">
        <ul class="wrap">
    <?php
    //取得栏目下的子栏目      
    $newsclass=$empire->query("select classid,classname from ".$dbtbpre."enewsclass where bclassid=".$bqr[classid]." order by myorder,classid desc limit 11");
    while($classr=$empire->fetch($newsclass))
    {
        $classrurl=sys_ReturnBqClassname($classr,9); //取得子栏目地址,
if($GLOBALS[navclassid])
{
$fcr=explode('|',$class_r[$GLOBALS[navclassid]][featherclass]);
}
        ?>
                <li><a href="<?=$classrurl?>"><?=$classr[classname]?></a></li>
    <?php
    }
    ?>
</ul>
</div>
  <?php
}
?>
</li>
[/e:loop]       
                    </ul>
                </nav>