function calculateTotal(){
	document.all.merch_frm.book2_qty.value = book2;
	document.all.merch_frm.puzzle_qty.value = puzzle;
	document.all.merch_frm.watch_qty.value = watch;
	document.all.merch_frm.tshirt_s.value = tshirt_s;
	document.all.merch_frm.tshirt_l.value = tshirt_l;
	document.all.merch_frm.tshirt_xl.value = tshirt_xl;
	document.all.merch_frm.sweatshirt_m.value = sweatshirt_m;
	document.all.merch_frm.sweatshirt_l.value = sweatshirt_l;
	document.all.merch_frm.sweatshirt_xl.value = sweatshirt_xl;
	items = (book2 + puzzle + watch + tshirt_s + tshirt_l + tshirt_xl + sweatshirt_m + sweatshirt_l + sweatshirt_xl);
	total = ((book2 * 15) + (puzzle * 2) + (watch * 25) + (tshirt_s * 9) + (tshirt_l * 9) + (tshirt_xl * 9) + (sweatshirt_m * 15) + (sweatshirt_l * 15) + (sweatshirt_xl * 15));
	//alert('Items: ' + items + ' Total: £' + total + '.00');
	document.all.items.innerHTML = 'Items: ' + items;
	document.all.total.innerHTML = 'Total: £' + total + '.00';
}

function addBook2(){
	book2 = parseInt(document.all.merch_frm.book2_qty.value);
	calculateTotal();
}

function addPuzzle(){
	puzzle = parseInt(document.all.merch_frm.puzzle_qty.value);
	calculateTotal();
}

function addWatch(){
	watch = parseInt(document.all.merch_frm.watch_qty.value);
	calculateTotal();
}

function addTshirt(){
	if (document.all.merch_frm.tshirt_size.value == 's'){
		tshirt_s = parseInt(document.all.merch_frm.tshirt_qty.value);
	}
	if (document.all.merch_frm.tshirt_size.value == 'l'){
		tshirt_l = parseInt(document.all.merch_frm.tshirt_qty.value);
	}
	if (document.all.merch_frm.tshirt_size.value == 'xl'){
		tshirt_xl = parseInt(document.all.merch_frm.tshirt_qty.value);
	}
	calculateTotal();
}

function addSweatshirt(){
	if (document.all.merch_frm.sweatshirt_size.value == 'm'){
		sweatshirt_m = parseInt(document.all.merch_frm.sweatshirt_qty.value);
	}
	if (document.all.merch_frm.sweatshirt_size.value == 'l'){
		sweatshirt_l = parseInt(document.all.merch_frm.sweatshirt_qty.value);
	}
	if (document.all.merch_frm.sweatshirt_size.value == 'xl'){
		sweatshirt_xl = parseInt(document.all.merch_frm.sweatshirt_qty.value);
	}
	calculateTotal();
}

function getTshirt(){
	if (document.all.merch_frm.tshirt_size.value == 's'){
		document.all.merch_frm.tshirt_qty.value = tshirt_s;
	}
	if (document.all.merch_frm.tshirt_size.value == 'l'){
		document.all.merch_frm.tshirt_qty.value = tshirt_l;
	}
	if (document.all.merch_frm.tshirt_size.value == 'xl'){
		document.all.merch_frm.tshirt_qty.value = tshirt_xl;
	}
}

function getSweatshirt(){
	if (document.all.merch_frm.sweatshirt_size.value == 'm'){
		document.all.merch_frm.sweatshirt_qty.value = sweatshirt_m;
	}
	if (document.all.merch_frm.sweatshirt_size.value == 'l'){
		document.all.merch_frm.sweatshirt_qty.value = sweatshirt_l;
	}
	if (document.all.merch_frm.sweatshirt_size.value == 'xl'){
		document.all.merch_frm.sweatshirt_qty.value = sweatshirt_xl;
	}
}

function emptyBasket(){
	if (confirm('Are you sure you want to empty your basket?')){
		book = 0;
		puzzle = 0;
		watch = 0;
		tshirt_s = 0;
		tshirt_l = 0;
		tshirt_xl = 0;
		sweatshirt_m = 0;
		sweatshirt_l = 0;
		sweatshirt_xl = 0;
		items = 0;
		total = 0;
		document.all.items.innerHTML = 'Items: ' + items;
		document.all.total.innerHTML = 'Total: £' + total + '.00';
		return(true);
	}
	else{
		return(false);
	}
}

function checkDetails(){
	message = '';
	if (document.all.order_frm.name.value == ''){
		message = 'Full Name\n';
	}
	if (document.all.order_frm.email.value == ''){
		message = message + 'Email Adress\n';
	}
	if (document.all.order_frm.address.value == ''){
		message = message + 'Postal Address';
	}
	if (message == ''){
		document.all.order_frm.submit();
	}
	else{
		alert('Please enter:\n' + message);
	}
}