var cartArr = new Array();

function addProduct() {
	var prod = new Object();
	prod.gender = $('gender').options[$('gender').selectedIndex].value;
	prod.color 	= $('color').options[$('color').selectedIndex].value;
	prod.size 	= $('size').options[$('size').selectedIndex].value;
	prod.amount = $('amount').options[$('amount').selectedIndex].value;
	cartArr.push(prod);
	buildOverview();
}

function deleteProduct(i) {
	cartArr.splice(i,1);
	buildOverview();
}

function calculateTotal(){
	var total = 0;
	if ($('f_shipment').options[$('f_shipment').selectedIndex].value == 'O') {
		price = 27.95;
		$('countryfield').style.display = 'block';
	} else  {
		price = 23.95;
		$('countryfield').style.display = 'none';
	}
	for (var i=0; i<cartArr.length; i++) {  
		total+=cartArr[i].amount*price;
	}
	$('ordervalue').value = price;
	$('total').innerHTML = '<strong>'+total+' &euro;</strong> (incl. vat and transport)';
}

function buildOverview() {
	var outStr = '';
	for (var i=0; i<cartArr.length; i++) {  
		outStr+='<p>'+cartArr[i].amount+' x '+cartArr[i].color+' - '+cartArr[i].gender+' - '+cartArr[i].size+' <input type="button" value="remove" onclick="javascript:deleteProduct('+i+');" class="btn2"></p>';
	}
	if(cartArr.length == 0)
		outStr+='please make your t-shirt selection...';
	$('orderoverview').innerHTML = outStr;
	calculateTotal();
}