getNumberOf("orders")-1

function is_it_my_quote(price_from_glass, volume_from_glass, sec)
   local row
   for i=getNumberOf("orders"),getNumberOf("orders")-orders_threshold,-1 do   
      row=getItem("orders",i)

      if row.seccode==sec and row.price==price_from_glass and orderflags2table(row.flags).active then
         if row.balance==volume_from_glass then
            return true,true
         else
            return true,false
         end
      end
   end
   return false,false
end