function GetPreNext($gtype='')    {        $rs = '';        if(count($this->PreNext)<2)        {            $aid = $this->ArcID;            $preR =  $this->dsql->GetOne("Select id From `dede_arctiny` where id<$aid And arcrank>-1 And typeid='{$this->Fields['typeid']}' order by id desc");            $nextR = $this->dsql->GetOne("Select id From `dede_arctiny` where id>$aid And arcrank>-1 And typeid='{$this->Fields['typeid']}' order by id asc");            $next = (is_array($nextR) ? " where arc.id={$nextR['id']} " : ' where 1>2 ');            $pre = (is_array($preR) ? " where arc.id={$preR['id']} " : ' where 1>2 ');            $query = "Select arc.id,arc.title,arc.shorttitle,arc.typeid,arc.ismake,arc.senddate,arc.arcrank,arc.money,arc.filename,arc.litpic,                        t.typedir,t.typename,t.namerule,t.namerule2,t.ispart,t.moresite,t.siteurl,t.sitepath                        from `dede_archives` arc left join dede_arctype t on arc.typeid=t.id  ";            $nextRow = $this->dsql->GetOne($query.$next);            $preRow = $this->dsql->GetOne($query.$pre);            if(is_array($preRow))            {                $mlink = GetFileUrl($preRow['id'],$preRow['typeid'],$preRow['senddate'],$preRow['title'],$preRow['ismake'],$preRow['arcrank'],                $preRow['namerule'],$preRow['typedir'],$preRow['money'],$preRow['filename'],$preRow['moresite'],$preRow['siteurl'],$preRow['sitepath']);                $mobile_mlink = "/m/view.php?aid=".$preRow['id'];                $this->PreNext['pre'] = "上一篇：<a href='$mlink'>{$preRow['title']}</a> ";                $this->PreNext['mobile_pre'] = "上一篇：<a href='$mobile_mlink'>{$preRow['title']}</a> ";                $this->PreNext['preimg'] = "<a href='$mlink'><img src=/"{$preRow['litpic']}/" alt=/"{$preRow['title']}/"/></a> ";             }            else            {                $this->PreNext['pre'] = "上一篇：沒有了 ";                $this->PreNext['mobile_pre'] = "上一篇：沒有了 ";                $this->PreNext['preimg'] ="<img src=/"/templets/default/images/nophoto.jpg/" alt=/"對不起，沒有上一圖集了！/"/>";            }            if(is_array($nextRow))            {                $mlink = GetFileUrl($nextRow['id'],$nextRow['typeid'],$nextRow['senddate'],$nextRow['title'],$nextRow['ismake'],$nextRow['arcrank'],                $nextRow['namerule'],$nextRow['typedir'],$nextRow['money'],$nextRow['filename'],$nextRow['moresite'],$nextRow['siteurl'],$nextRow['sitepath']);                                $mobile_mlink = "/m/view.php?aid=".$nextRow['id'];                $this->PreNext['next'] = "下一篇：<a href='$mlink'>{$nextRow['title']}</a> ";                $this->PreNext['mobile_next'] = "下一篇：<a href='$mobile_mlink'>{$nextRow['title']}</a> ";                $this->PreNext['nextimg'] = "<a href='$mlink'><img src=/"{$nextRow['litpic']}/" alt=/"{$nextRow['title']}/"/></a> ";            }            else            {                $this->PreNext['next'] = "下一篇：沒有了 ";                $this->PreNext['mobile_next'] = "下一篇：沒有了 ";                $this->PreNext['nextimg'] ="<a href='javascript:void(0)' alt=/"/"><img src=/"/templets/default/images/nophoto.jpg/" alt=/"對不起，沒有下一圖集了！/"/></a>";            }        }        if($gtype=='pre')        {            $rs =  $this->PreNext['pre'];        }        else if($gtype=='preimg'){            $rs =  $this->PreNext['preimg'];        }                else if($gtype=='mobile_pre'){            $rs =  $this->PreNext['mobile_pre'];        }        else if($gtype=='next')        {            $rs =  $this->PreNext['next'];        }                else if($gtype=='mobile_next')        {            $rs =  $this->PreNext['mobile_next'];        }        else if($gtype=='nextimg'){            $rs =  $this->PreNext['nextimg'];        }        else        {            $rs =  $this->PreNext['pre']." &nbsp; ".$this->PreNext['next'];        }        return $rs;    }