// JavaScript Document

/*---------------------------------- Print料金  -------------------------------------*/
function PrintChargeList() {
	this.list = new Array();
}

var _printChargeList = new PrintChargeList(); //料金表

function printCharge(discount, index) {
	return _printChargeList.list[discount][index];
}

function setPrintCharge() {
	chargeArray = new Array();
	for (i = 0 ; i < arguments.length ; i++) {
		chargeArray[i] = arguments[i];
	}
	_printChargeList.list.push(chargeArray);
	
	return _printChargeList.list.length - 1; 
}

var _discount0 = setPrintCharge(800, 930, 980, 1100, 2780);
var _discount1 = setPrintCharge(660, 740, 790, 890, 2400);
var _discount2 = setPrintCharge(580, 650, 700, 780, 2200);
var _discount3 = setPrintCharge(520, 600, 650, 690, 2100);

function DiscountForNumber(num) {
	if (num < 9 || isNaN(num)) {
		return  _discount0;
	}	else if (num < 18) {
		return _discount1;
	}	else if (num < 27) {
		return _discount2;
	}	else {
		return _discount3;
	}
}