function onLoad() {
	var biscuit = document.cookie;
	biscuit = biscuit.substring(biscuit.indexOf("currency"),biscuit.length);

	if (biscuit.indexOf(";") != -1)
		biscuit = biscuit.substring(0,biscuit.indexOf(";"));

	if (biscuit.indexOf("currency") == -1)
		document.cookie = "currency=GBP; path=/; expires=Thu, 01-Jan-2070 00:00:01 GMT;";
	if (biscuit.indexOf("GBP") != -1)
		document.currencyForm.currency.options[0].selected = true;
	else if (biscuit.indexOf("USD") != -1)
		document.currencyForm.currency.options[1].selected = true;
	else if (biscuit.indexOf("EUR") != -1)
		document.currencyForm.currency.options[2].selected = true;
	else if (biscuit.indexOf("JPY") != -1)
		document.currencyForm.currency.options[3].selected = true;
	else if (biscuit.indexOf("AUD") != -1)
		document.currencyForm.currency.options[4].selected = true;
	else if (biscuit.indexOf("CAD") != -1)
		document.currencyForm.currency.options[5].selected = true;
}

function setCurrency() {
	var currency = document.currencyForm.currency.options[document.currencyForm.currency.options.selectedIndex].value;
	var currencyCookie = "currency=" + escape(currency)  + "; path=/; expires=Thu, 01-Jan-2070 00:00:01 GMT;";

	document.cookie = currencyCookie;
	window.location.reload(true);
}

function change(id) {
	var products = getProducts();
	id = id+"";

	if (products[id] == undefined)
		products[id] = 0;

	var value = document.getElementById("qty_"+id).value;
    numProduct = parseInt(products[id]) +  parseInt(value);

    if (isNaN(numProduct)) {
        alert("Please enter a numeric value to add to the basket");
        return;
    }
    else if (numProduct < 0) {
        alert("Please enter a positive value");
        return;
    }

    products[id] = numProduct;
    //alert(products[id]);
	setCookie(products);
	//window.location.reload(true);
}

function setQuantity(id) {
	var products = getProducts();
	id = id+"";
	var value = document.getElementById("qty_"+id).value;
    numProduct =  parseInt(value);
    if (isNaN(numProduct)) {
        alert("Please enter a numeric value to add to the basket");
        return;
    }
    else if (numProduct < 0) {
        alert("Please enter a positive value");
        return;
    }

    products[id] = numProduct;
	setCookie(products);
	window.location.reload(true);
}

function add(id) {
	var products = getProducts();
	id = id+"";

	if (products[id] == undefined)
		products[id] = 0;

	products[id] = parseInt(products[id]) +1;

	setCookie(products);
	window.location.reload(true);
}

function removeOne(id) {
	var products = getProducts();
	id = id+"";

	if (products[id] == undefined)
		products[id] = 0;

	if (products[id] > 0)
		products[id] = parseInt(products[id]) -1;

	setCookie(products);
	window.location.reload(true);
}

function getProducts() {
	var biscuit = document.cookie;
	var index = biscuit.indexOf("products=");
	var cartItems = new Array();

	if (index == -1)  //if there are no products return empty array
		return cartItems;

	biscuit = unescape(biscuit.substring(index+9,biscuit.length));

	//grab the end of the product string
	if (biscuit.indexOf(";") != -1)
		biscuit = biscuit.substring(0,biscuit.indexOf(";"));

    var cartPairs = biscuit.split(" ");

	for ( var count=0; count < cartPairs.length; count++ )	{
        if (cartPairs[count] == "") {
            continue;
        }
		var itemCodeAndCount = cartPairs[count].split(":");
		var key =  itemCodeAndCount[0]+"";
		cartItems[ key ] = itemCodeAndCount[1];
	}

    for (i in cartItems) {
        //alert(cartItems[i]);
    }
	return cartItems;
}

function setCookie (itemsArray) {
	var cartPairs = new Array();
	//join array into an array of code:quantity
	var cartCookieValue = "";

    for ( var i in itemsArray ) {
		if (itemsArray[i]) {
			if (i == "map" || i == "filter" || i == "every" || i == "some" || i == "reduce" || i == "indexOf" || i == "lastIndexOf" || i == "each" || i == "eachSlice" || i == "all" || i == "any" || i == "collect" || i == "detect" || i == "findAll" || i == "grep" || i == "include" || i == "inGroupsOf" || i == "inject" || i == "invoke" || i == "max" || i == "min" || i == "partition" || i == "pluck" || i == "reject" || i == "s||tBy" || i == "toArray" || i == "zip" || i == "size" || i == "inspect" || i == "find" || i == "select" || i == "member" || i == "entries" || i == "_reverse" || i == "_each" || i == "clear" || i == "first" || i == "last" || i == "compact" || i == "flatten" || i == "without" || i == "uniq" || i == "intersect" || i == "clone" || i == "toJSON" || i == "sortBy") {
				continue;
			}
			cartCookieValue = cartCookieValue + i + ":" + itemsArray[i] + " ";
		}
	}
    //alert(cartCookieValue);
	document.cookie = "products=" + escape(cartCookieValue) + "; path=/;";
    //alert(document.cookie);
}

function setupOptions(view, number, orderBy, order) {
	if (view != '')
		setOption(document.optionsForm.view, view);
	else
		document.optionsForm.view.options[0].selected = true;
	if (number != '')
		setOption(document.optionsForm.number, number);
	else
		document.optionsForm.number.options[4].selected = true;
	if (orderBy != '')
		setOption(document.optionsForm.orderBy, orderBy);
	else
		document.optionsForm.orderBy.options[1].selected = true;
	if (order != '')
		setOption(document.optionsForm.order, order);
	else
		document.optionsForm.order.options[0].selected = true;
}

function setPage(num) {
	//document.products["pageBox"].options[num].selected = true;
	document.getElementsByName("pageBox")[0].options[num].selected = true;
	//document.getElementsByName("pageBox")[1].options[num].selected = true;

}

function setOption(op, value) {
	for (i = 0; i < op.length ; i++) {
		if (op.options[i].value == value) {
			op.options[i].selected = true;
		}
	}
}

function delCookie (name) {
    document.cookie = name + "=" + "; expires=Thu, 01-Jan-1970 00:00:01 GMT" +  "; path=/";
}

function clearOrder() {
    delCookie("products");
    document.location.href = "index.php";
}

function addbookmark() {
	if (document.all) {
		window.external.AddFavorite("http://www.theinternetswitchstore.co.uk/","");
	}
}

function submitForm(paymentProcessor) {
	var country = document.order.country;
	if (document.order.first_name.value == ""	|| document.order.address1.value == "" ||
		document.order.city.value == ""		|| document.order.state.value == "" ||
		document.order.zip.value == ""		|| document.order.last_name.value == "" ||
		document.order.tel.value == ""		|| country[country.selectedIndex].value =="NA" ||
		document.order.email.value.indexOf("@") == -1)
	{
		document.getElementById('error').value = 'true';
		document.forms['order'].action = "checkout.php";
	}

	document.getElementById("pp").value = paymentProcessor;
	document.forms['order'].submit();
}

function openWin(file) {
	var newWindow = '';
	file = file.toLowerCase();
	file = file.trim();

	if (file.substr(file.length -1, 1) == " ") {
		file = file.substr(0,file.length -1);
	}

	file = "info/"+file+".html";
	newWindow = window.open(file,'mapWin',"resizable=yes,scrollbars=yes,width=600,height=400");
	newWindow.focus();
}

function updateCountry() {
	var country = document.order.country;
	var postage = 0.00;
	var subTotal = document.order.elements["subTotal"].value;

	var currency = document.order.currencySymbol.value;

	if (country[country.selectedIndex].id == "0")
		postage = document.order.elements["UKPostalCost"].value;
	else if (country[country.selectedIndex].id == "1")
		postage = document.order.elements["europePostalCost"].value;
	else if (country[country.selectedIndex].id == "2")
		postage = document.order.elements["internationalPostalCost"].value;
	else
		return;

	postage = postage * document.order.currencyRate.value;
//	postage = postage.toFixed(2);

	document.getElementById("postage").value = postage.toFixed(2);
	document.getElementById("handling_cart").value = postage.toFixed(2);

	subTotal = parseFloat(subTotal) + parseFloat(postage);

	var vat = subTotal * 0.175;
	document.getElementById("vat").value =  vat.toFixed(2);
	document.getElementById("tax_cart").value =  vat.toFixed(2);
	var total = subTotal + vat;
	document.getElementById("total").value = total.toFixed(2) ;
}

String.prototype.trim = function() {
	a = this.replace(/^\s+/, '');
	return a.replace(/\s+$/, '');
};

function updateBasket() {
	var products = getProducts();

	for (var i = 0; document.products[i].name != "add"; i++) {
		var id = parseInt(document.products[i].name) + 0;
		var qty = parseInt(document.products[i].value) + 0;

		if (products[id])
			products[id] = parseInt(products[id]) + qty;
		else
			products[id] = qty;

		if (products[id] < 0)
			products[id] = 0;
	}

	setCookie(products);
}

function remove(id) {
	var products = getProducts();
	products[id] = 0;
	setCookie(products);
	window.location.reload(true);
}