织梦dedecms网站栏目页怎么获取当前顶级栏目名称

//获取顶级栏目名
function GetTopTypename($id)
{
global $dsql;
$row = $dsql->GetOne("SELECT typename,topid FROM jiemou_arctype WHERE id= $id");
if ($row['topid'] == '0')
{
return $row['typename'];
}
else
{
$row1 = $dsql->GetOne("SELECT typename FROM jiemou_arctype WHERE id= $row[topid]");
return $row1['typename'];
}
}

{dede:field name='typeid' function="GetTopTypename(@me)" /}