function searchHarga(quantity) {
                var ret
                for(var j=0, arrayLength = checkPrice.length; j < arrayLength ;j++)
                {
                    if(j == arrayLength)
                    {
                        ret = checkPrice[j].price;
                        break
                    }
                    if(j < arrayLength)
                    {
                        if( (parseInt(quantity) >= parseInt(checkPrice[j].qty)) && (parseInt(quantity) < parseInt(checkPrice[j+1].qty)) ){
                            ret = checkPrice[j].price;
                            break;
                        }
                    }
                }
                return ret;
            }