<tr id="tr_<%:=list[i].order_id%>_<%:=i%>" 

$ress=$("tr[id^='tr_"+data[i].order_id+"']");
         for($i=1;$i<=$ress.length;$i++) {
             $ress.eq(1).children("td:lt(6)").css("border-top", " 1px solid #FFFFFF");
             $ress.eq(1).children("td:lt(6)").empty();
         }