function buyItem(ItemNo,NeedsPic)
{
	var amount, input;
	for (var i=0; i<7; i++){
	  	inputField = document.getElementById('amount'+i+'_'+ItemNo);
	  	if (inputField == null || inputField == '') continue;

			amount = inputField.value;
			if (amount != null && amount != '' && amount != 0){
				if (i == 0)
					doBuyItem(ItemNo, '', amount, NeedsPic);
				else
					doBuyItem(ItemNo, i, amount, NeedsPic);

				inputField.value = '';
			}
	}

	new Ajax.Request('http://www.posten.ax/webshop/lib/ajaxServer.con', {
		method:'post',
		asynchronous:false,
		postBody:'LangCode=1&pagepath=/var/www/http-www.posten.ax/&function=GetCartPrice',
		onSuccess:updateCartPrice,
		onFailure:errFunc
	});
}

function doBuyItem(ItemNo, vCode, amount, NeedsPic)
{
	new Ajax.Request('http://www.posten.ax/webshop/lib/ajaxServer.con', {
		method:'post',
		asynchronous:false,
		postBody:'LangCode=1&ItemNo='+ItemNo+
			'&vCode='+vCode+
			'&amount='+amount+
			'&NeedsPic='+NeedsPic+
			'&pagepath=/var/www/http-www.posten.ax/&function=AddItemToCart',
		onSuccess:updateCart,
		onFailure:errFunc
	});
}

var errFunc = function(t)
	{
    alert('Error ' + t.status + ' -- ' + t.statusText);
	}

var updateCart = function(t)
	{
	var xmlDoc = t.responseXML.documentElement;
	//Handle data.
	var ItemCategoryCode = getXMLValue('ItemCategoryCode', xmlDoc, 1);
	var Items = xmlDoc.getElementsByTagName('item');
	var CartList = document.getElementById('CartList');
	CartList.innerHTML = '';

	if(Items.length > 0)
		{

		//document.getElementById('btnEditBasket').disabled=false;
		document.getElementById('btnCheckout').disabled=false;
		//alert("length: "+Items.length);
		var table = document.createElement("table");
		var tbody = document.createElement("tbody");
		table.appendChild(tbody);

		var mod = 0;

		for(i=0;i<Items.length;i++)
			{

			var No = getXMLValue('No', Items[i], 1);
			var Amount = getXMLValue('Amount', Items[i], 1);
			var Description = getXMLValue('Description', Items[i], 1);
			var Price = getXMLValue('Price', Items[i], 1);
			var AllPrice = getXMLValue('AllPrice', Items[i], 1);

			var mod = i % 2;
			var tr = document.createElement("tr");
			tr.className = 'ItemLine'+mod;
			tr.id = 'ItemLine'+(i+1);

			var td = document.createElement("td");
			td.className = 'cartAmount';
			td.innerHTML = Amount;
			tr.appendChild(td);

			var td = document.createElement("td");
			td.className = 'cartDesc';
			td.innerHTML = Description;
			tr.appendChild(td);

			var td = document.createElement("td");
			td.className = 'cartPrice';
			checkDecimal(td, AllPrice);
			tr.appendChild(td);

			tbody.appendChild(tr);
			}

		CartList.appendChild(table);
		}
	else
		{
		CartList.innerHTML = "<p>Din varukorg är tom</p>";
		}
	}

function updateCartPrice(t)
	{
	var xmlDoc = t.responseXML.documentElement;
	//var data = xmlDoc.getElementsByTagName('data');
	var price = getXMLValue('result', xmlDoc, 1);
	//alert(price);
	$('CartPrice').innerHTML = price;
	}

function checkDecimal(obj, objStr){
    var objNumber;
    if(isNaN(objStr) && objStr!=''){
        //alert('Värdet är ej nummeriskt');
        objNumber = objStr;
    }
    if(objStr==''){
        objNumber = '';
    }
    else if(objStr.indexOf(',')!=-1){
        if(((objStr.length) - (objStr.indexOf(',')))>3){
            objStr = objStr.substr(0,((objStr.indexOf(','))+3));
        }
        if(objStr.indexOf(',')==0){
            objStr = '0' + objStr;
        }
        var sLen = objStr.length;
        var TChar = objStr.substr(sLen-3,3);
        if(TChar.indexOf(',')==0){
            objNumber = objStr;
        }
        else if(TChar.indexOf(',')==1){
            objNumber = objStr + '0';
        }
        else if(TChar.indexOf(',')==2){
            objNumber = objStr + '00';
        }
    }
    else{
        objNumber = objStr + ',00';
    }
    obj.innerHTML = objNumber;
}

// datatype 1 - text
//          2 - int
//          3 - float
function getXMLValue(fieldname, dataset, datatype)
	{
	var result;

	if (!dataset.getElementsByTagName(fieldname)[0] || dataset.getElementsByTagName(fieldname)[0].firstChild == null)
		result = '';
	else
		result = dataset.getElementsByTagName(fieldname)[0].firstChild.nodeValue;

	return result;
	}

function removeCartItem(uCode)
	{
	document.getElementById('uCode').value = uCode;
	document.getElementById('action').value = 'remove';
	document.getElementById('basketForm').submit();
	}

function destroyBasket()
	{
	var answer = confirm("Är du säker på att du vill radera alla dina varor från kundvagnen?");
	if(answer)
		{
		alert("Din kundvagn är nu tom");
		document.getElementById('Action').value = 'Destroy';
		document.getElementById('ItemActionForm').submit();
		}
	}

function updateAmounts()
	{
	document.getElementById('UpdateAction').value = 'Update';
	document.getElementById('ItemUpdateForm').submit();
	}

function checkout(CashOnly)
{
	/*if(CashOnly && document.getElementById('PaymentMethod_INVOICE').checked == true)
		{
		document.getElementById('checkoutButton').disabled = false;
		alert("SSN is needed for invoice payment!");
		return;
		}*/
	document.getElementById('ItemUpdateForm').action = 'shop_checkout.con';
	document.getElementById('ItemUpdateForm').submit();
	//window.location='CheckOut.con';
}

function payment()
	{
	document.getElementById('ItemUpdateForm').action = 'shop_payment.con';
	document.getElementById('ItemUpdateForm').submit();
	//window.location='CheckOut.con';
	}