function getProductTree($typeid) 
{ 
$linkList = ""; 
$dsql = new DedeSql(false); 
$dsql->SetQuery("select ID,typedir,typename,isdefault from dede_arctype where reID = '$typeid' order by sortrank"); 
$dsql->Execute(); 
while($row=$dsql->GetObject()) 
{ 
   $typelink = GetTypeUrl($row->id,MfTypedir($row->typedir),$row->isdefault,$row->defaultname,$row->ispart,$row->namerule2,$row->moresite,$row->siteurl,$row->sitepath); 
   $linkList .= "\n<div class=\"firsttype\"><a href=\"$typelink\"><b>".$row->typename."</b></a></div>\n\n"; 
   $linkList .= getSonClass($row->ID); 
} 
$dsql->Close(); 
return $linkList; 
} 
//获得小类栏目链接 
function getSonClass($parentid) 
{ 
$linkList = ""; 
$dsql = new DedeSql(false); 
$dsql->SetQuery("Select ID,typedir,typename,isdefault From dede_arctype where reID='$parentid' order by sortrank"); 
$dsql->Execute($parentid); 
while($row=$dsql->GetObject($parentid)) 
{ 
   $typelink = GetTypeUrl($row->id,MfTypedir($row->typedir),$row->isdefault,$row->defaultname,$row->ispart,$row->namerule2,$row->moresite,$row->siteurl,$row->sitepath); 
   $linkList .= "<li class=\"secondtype\"><a href=\"$typelink\">".$row->typename."</a></li>\n"; 
   $linkList .= getSonClass2($row->ID); 
} 
return $linkList; 
} 
function getSonClass2($parentid) 
{ 
$linkList = ""; 
$dsql = new DedeSql(false); 
$dsql->SetQuery("Select ID,typedir,typename,isdefault From dede_arctype where reID='$parentid' order by sortrank"); 
$dsql->Execute($parentid); 
while($row=$dsql->GetObject($parentid)) 
{ 
   $typelink = GetTypeUrl($row->id,MfTypedir($row->typedir),$row->isdefault,$row->defaultname,$row->ispart,$row->namerule2,$row->moresite,$row->siteurl,$row->sitepath); 
   $linkList .= "<li class=\"thirdtype\"><a href=\"$typelink\">".$row->typename."</a></li>\n"; 
   $linkList .= getSonClass3($row->ID); 
} 
return $linkList; 
} 
function getSonClass3($parentid) 
{ 
$linkList = ""; 
$dsql = new DedeSql(false); 
$dsql->SetQuery("Select ID,typedir,typename,isdefault From dede_arctype where reID='$parentid' order by sortrank"); 
$dsql->Execute($parentid); 
while($row=$dsql->GetObject($parentid)) 
{ 
   $typelink = GetTypeUrl($row->id,MfTypedir($row->typedir),$row->isdefault,$row->defaultname,$row->ispart,$row->namerule2,$row->moresite,$row->siteurl,$row->sitepath); 
   $linkList .= "<li class=\"fourthtype\"><a href=\"$typelink\">".$row->typename."</a></li>\n"; 
} 
return $linkList; 
}