var promoOffers = new Array;
promoOffers[1] = new Array;
promoOffers[1][1] = new Array(2, '', '', '', '', '', '');
promoOffers[1][2] = new Array(3, '', '', '', '', '', '');
promoOffers[1][3] = new Array(4, '', '', '', '', '', '');
promoOffers[3] = new Array;
promoOffers[3][1] = new Array(13, '', '', '', '', '', '');
promoOffers[3][2] = new Array(14, '', '', '', '', '', '');
promoOffers[3][3] = new Array(15, '', '', '', '', '', '');
promoOffers[4] = new Array;
promoOffers[4][1] = new Array(17, '', '', '', '', '', '');
promoOffers[5] = new Array;
promoOffers[5][1] = new Array(32, '', '', '', '', '', '');
promoOffers[5][2] = new Array(31, '', '', '', '', '', '');
promoOffers[5][3] = new Array(30, '', '', '', '', '', '');
var costs = new Array;
costs[2] = new Array;
costs[2][1] = new Array(99, 99, 24, 99);
costs[2][2] = new Array(92.5, 92.5, 17.5, 92.5);
costs[3] = new Array;
costs[3][1] = new Array(250, 125, 250, 125);
costs[3][2] = new Array(235, 117.5, 235, 117.5);
costs[3][3] = new Array(290, 145, 290, 145);
costs[4] = new Array;
costs[4][1] = new Array(299, 149.5, 299, 149.5);
costs[4][2] = new Array(285, 142.5, 285, 142.5);
costs[4][3] = new Array(345, 172.48, 345, 172.48);
costs[13] = new Array;
costs[13][1] = new Array(99, 99, 24, 99);
costs[13][2] = new Array(92.5, 92.5, 17.5, 92.5);
costs[14] = new Array;
costs[14][1] = new Array(250, 125, 175, 125);
costs[14][2] = new Array(235, 117.5, 160, 117.5);
costs[14][3] = new Array(290, 145, 290, 145);
costs[15] = new Array;
costs[15][1] = new Array(299, 149.5, 224, 149.5);
costs[15][2] = new Array(285, 142.5, 210, 142.5);
costs[15][3] = new Array(345, 172.48, 345, 172.48);
costs[17] = new Array;
costs[17][1] = new Array(99, 99, 24, 99);
costs[17][2] = new Array(92.5, 92.5, 17.5, 92.5);
costs[30] = new Array;
costs[30][1] = new Array(299, 149.5, 224, 149.5);
costs[30][2] = new Array(285, 142.5, 210, 142.5);
costs[30][3] = new Array(345, 172.48, 345, 172.48);
costs[31] = new Array;
costs[31][1] = new Array(250, 125, 175, 125);
costs[31][2] = new Array(235, 117.5, 160, 117.5);
costs[31][3] = new Array(290, 145, 290, 145);
costs[32] = new Array;
costs[32][1] = new Array(99, 0, 24, 0);
costs[32][2] = new Array(92.5, 0, 17.5, 0);

function subscriptionCostsUpdate() {
	var sectorID = $F('SubscriptionActSmartRetailChannel');
	var productID = $F('SubscriptionProduct');
	var paymentMethodID = $RF('SubscriptionPaymentMethod');
	
	if (sectorID == '' || productID == '' || paymentMethodID == null) {
		$('listprice', 'discount-wrapper').invoke('hide');
		$('discounts').update();
		$('finalpricevalue').update();
		return;
	}
	
	promo = promoOffers[sectorID][productID];
	if (costs[promo[0]] && costs[promo[0]][paymentMethodID]) {
		prices = costs[promo[0]][paymentMethodID];
	} else {
		$('listprice', 'discount-wrapper').invoke('hide');
		$('discounts').update();
		$('finalpricevalue').update();
		return;
	}
	
	additionalRetailOutlets = $F('SubscriptionAdditionalRetailOutlets');
	if (isUnsignedInteger(additionalRetailOutlets)) {
		intAdditionalRetailOutlets = parseInt(additionalRetailOutlets, 10);
	} else {
		intAdditionalRetailOutlets = 0;
	}

	listPrice = prices[0] + (prices[1] * intAdditionalRetailOutlets);
	finalPrice = prices[2] + (prices[3] * intAdditionalRetailOutlets);

	listPrice = listPrice.toFixed(2);
	finalPrice = finalPrice.toFixed(2);

	$('finalpricevalue').update( finalPrice);
	
	// Is list price the same as final price? If so there aren't any promotions
	if (!(promo[1] && promo[2]) && !(promo[3] && promo[4]) && !(promo[5] && promo[6])) {
		$('listprice', 'discount-wrapper').invoke('hide');
		$('discounts').update();
	} else {
		discountHTML = '';
		if (promo[1] || promo[2]) { discountHTML += '<th class="noborder">' + promo[1] + '<br /><span>' + promo[2] + '</span></th>'; }
		if (promo[3] || promo[4]) { discountHTML += '<th>' + promo[3] + '<br /><span>' + promo[4] + '</span></th>'; }
		if (promo[5] || promo[6]) { discountHTML += '<th>' + promo[4] + '<br /><span>' + promo[6] + '</span></th>'; }
		$('discounts').update(discountHTML);
		$('listpricevalue').update(listPrice);
		$('listprice', 'discount-wrapper').invoke('show');
	}
}

function isUnsignedInteger(s) {
	return (s.toString().search(/^[0-9]+$/) == 0);
}

// Courtesy of Aaron's Thoughts
// http://aaron.xavisys.com/using-prototype-javascript-to-get-the-value-of-a-radio-group/
function $RF(el, radioGroup) {
	if($(el).type && $(el).type.toLowerCase() == 'radio') {
		var radioGroup = $(el).name;
		var el = $(el).form;
	} else if ($(el).tagName.toLowerCase() != 'form') {
		return false;
	}

	var checked = $(el).getInputs('radio', radioGroup).find(
		function(re) {return re.checked;}
	);
	return (checked) ? $F(checked) : null;
}