问题:
	
	在2级栏目页面单独调用该栏目的顶级栏目名称!
	
	方法思路:
	
	在
	{dede:type}
	<a href="[field:typelink /]">[field:typename /]</a>
	{/dede:type}
	标签的基础上进行修改。
	
	调用方法:
	{dede:type2}
	<a href="[field:typelink /]">[field:typename /]</a>
	{/dede:type2}
	
	新标签放置位置:
	\include\taglib\type2.lib.php保存为type2.lib.php标签就可以使用
	
	<?php
	/* vim: set expandtab tabstop=4 shiftwidth=4: */
	// +----------------------------------------------------------------------+
	// | PHP version 5                            |
	// +----------------------------------------------------------------------+
	// | Copyright (c) 1997-2004 The PHP Group                |
	// +----------------------------------------------------------------------+
	// | This source file is subject to version 3.0 of the PHP license,    |
	// | that is bundled with this package in the file LICENSE, and is    |
	// | available through the world-wide-web at the following url:      |
	// | http://www.php.net/license/3_0.txt.                 |
	// | If you did not receive a copy of the PHP license and are unable to  |
	// | obtain it through the world-wide-web, please send a note to     |
	// | license@php.net so we can mail you a copy immediately.        |
	// +----------------------------------------------------------------------+
	// | Authors: Original Author <author@example.com>            |
	// |     Your Name <you@example.com>                 |
	// +----------------------------------------------------------------------+
	//
	// $Id:$
	
	if (!defined('DEDEINC')) exit('Request Error!');
	function lib_type2(&$ctag, &$refObj) {
	  global $dsql, $envs;
	  $attlist = 'typeid|0';
	  FillAttsDefault($ctag->CAttribute->Items, $attlist);
	  extract($ctag->CAttribute->Items, EXTR_SKIP);
	  $innertext = trim($ctag->GetInnerText());
	  if ($typeid == 0) {
	    $typeid = (isset($refObj->TypeLink->TypeInfos['topid']) ? $refObj->TypeLink->TypeInfos['topid'] : $envs['typeid']);
	//echo "ssssssssss1".$refObj->TypeLink->TypeInfos['topid'];
	//echo "ssssssssss2".$envs['typeid']; exit;
	  }
	//echo "typeid:".$typeid; exit;
	//lyy 如果topid==0 就是顶级分类,取当前记录
	if($refObj->TypeLink->TypeInfos['topid']==0){
	$typeid=$refObj->TypeLink->TypeInfos['id'];
	}
	//echo "typeid:".$typeid; exit;
	  if (empty($typeid)) return '';
	$row = $dsql->GetOne("SELECT id,typename,typedir,isdefault,ispart,defaultname,namerule2,moresite,siteurl,sitepath
	             FROM `dede_arctype` WHERE id='$typeid'");
	
	  if (!is_array($row)) return '';
	  if (trim($innertext) == '') $innertext = GetSysTemplets("part_type_list.htm");
	  $dtp = new DedeTagParse();
	  $dtp->SetNameSpace('field', '[', ']');
	  $dtp->LoadSource($innertext);
	  if (!is_array($dtp->CTags)) {
	    unset($dtp);
	    return '';
	  } else {
	//lyy 以下getTypeUrl($row[topid]错的,换成 $row['id'] echo $row['id']."sssss";exit;
	    $row['typelink'] = GetTypeUrl($row['id'], MfTypedir($row['typedir']) , $row['isdefault'], $row['defaultname'], $row['ispart'], $row['namerule2'], $row['siteurl'], $row['sitepath']);
	
	//print_r($row);exit;
	    foreach ($dtp->CTags as $tagid => $ctag) {
	      if (isset($row[$ctag->GetName() ])) $dtp->Assign($tagid, $row[$ctag->GetName() ]);
	    }
	    $revalue = $dtp->GetResult();
	    unset($dtp);
	    return $revalue;
	  }
	} ?>