function updateBasket(resp)
{
	$result = resp.asText().split('|');
	
	var basket = document.getElementById('basket');
	
	if ($result[0] != 0) {
		basket.innerHTML = $result[0] + ' на сумму ' + $result[1];
	}
	else {
		basket.innerHTML = 'нет товаров';
	}
}

function onAddInBasket(resp)
{
	updateBasket(resp);
	alert('Товар добавлен в корзину');
}

function onError()
{
	alert('HTTPRequest error');
}

function addInBasket(productId, optionId)
{
	var req = new sea.HTTPRequest(onAddInBasket, onError, 'POST');
	
	var params = new Object;
	params['product_id'] = productId;
	if (optionId) {
		params['option_id'] = optionId;
	}
	req.send('basket_do.php', params);
}

function checkBasket()
{
	var req = new sea.HTTPRequest(updateBasket, onError, 'POST');
	req.send('basket_do.php');
}