var sBasketPage = 'update_basket.html';

function addToBasket(id) {
	document.location.href = sBasketPage+'?action=add&id='+id;
}

function deleteFromBasket(id) {
	document.location.href = sBasketPage+'?action=delete&id='+id;
}

function updateShipping(sDestination, sCategory) {
	var oDestination = document.forms[0].elements[sDestination]
	var iDestination = oDestination.options[oDestination.options.selectedIndex].value;
	
	var oCategory = document.forms[0].elements[sCategory];
	var iCategory = aOptions[iDestination][oCategory.options.selectedIndex].id;

	document.location.href = sBasketPage+'?action=shipping&destination='+iDestination+'&category='+iCategory;
}