function MakeIndex()
{global $dsql,$cfg_basedir,$cfg_templets_dir,$cfg_df_style;
require_once(DEDEINC.'/arc.partview.class.php');
$envs = $_sys_globals = array();
$envs['aid'] = 0;
$pv = new PartView();
$row = $pv->dsql->GetOne('SELECT * FROM `dede_homepageset`');
$templet = str_replace("{style}", $cfg_df_style, $row['templet']);
$homeFile = dirname(__FILE__).'/../'.$row['position'];
$homeFile = str_replace("//", "/", str_replace("\\", "/", $homeFile));
$fp = fopen($homeFile, 'w') or die("无法更新网站主页到：$homeFile 位置");
fclose($fp);
$tpl = $cfg_basedir.$cfg_templets_dir.'/'.$templet;
if(!file_exists($tpl))
{$tpl = $cfg_basedir.$cfg_templets_dir.'/default/index.htm';
if(!file_exists($tpl)) exit("无法找到主页模板：$tpl ");
}$GLOBALS['_arclistEnv'] = 'index';
$pv->SetTemplet($tpl);
$pv->SaveToHtml($homeFile);
$pv->Close();
}

想让手机端二级目录也更新，手机端模板_m，这个怎么改？