$next = (is_array($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 `#@__archives` arc left join #@__arctype t on arc.typeid=t.id  ";

            if($this->ChannelUnit->ChannelInfos['issystem']!=-1){

                $next = (is_array($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 `#@__archives` arc left join #@__arctype t on arc.typeid=t.id  ";

            }else{

                $next = (is_array($nextR) ? " where arc.aid={$nextR['id']} " : ' where 1>2 ');

                $pre = (is_array($preR) ? " where arc.aid={$preR['id']} " : ' where 1>2 ');

                $query = "Select arc.aid,arc.title,arc.typeid,arc.senddate,arc.arcrank,arc.litpic, t.typedir,t.typename,t.namerule,t.namerule2,t.ispart,t.moresite,t.siteurl,t.sitepath

                        from `".$this->ChannelUnit->ChannelInfos['addtable']."` arc left join #@__arctype t on arc.typeid=t.id  ";

            }