var payment_cost = {};
	var textfield_cost = {};

	payment_cost["Collection"] = '';
	payment_cost["Delivery (£6.50 if under 10kg)"] = '6.5';

	function format_float(value) {
		var i = parseFloat(value);
		if(isNaN(i)) { i = 0.00; }
		var minus = '';
		if(i < 0) { minus = '-'; i = -i;}
		i = parseInt((i + .005) * 100);
		i = i / 100;
		s = new String(i);
		if(s.indexOf('.') < 0) { s += '.00'; }
		if(s.indexOf('.') == (s.length - 2)) { s += '0'; }
		s = minus + s;
		return s;
	}

	function recalc_onclick(form, ctl, price) {
		var textfield = document.getElementById('tfld_'+ctl);
		if(textfield && textfield.value && textfield_cost[ctl])
			price += parseFloat(textfield_cost[ctl]);
		form['tot['+ctl+']'].value = '£' + format_float(form['qty['+ctl+']'].value * price);
		calc_total(form);
	};

	function calc_total(form) {
		var subtotal = form['qty[1]'].value * 23.99 + form['qty[2]'].value * 26.99 + form['qty[3]'].value * 24.99 + form['qty[4]'].value * 25 + form['qty[5]'].value * 29.99;
		form['subtotal'].value = '£ ' + format_float(subtotal);
<!-- LINE ABOVE WAS form['subtotal'].value = '£' + format_float(subtotal); -->
		var payment = '';
		for(var i = 0; i < form.payment.length; i++) {
			if(form.payment[i].checked) {
				payment = form.payment[i].value;
				break;
			}
		}

		var cost = payment_cost[payment] ? parseFloat(payment_cost[payment]) : 0;
		if(new String(payment_cost[payment]).match(/%/))
			form['total'].value = '£ ' + format_float(subtotal + subtotal * cost / 100);
		else
			form['total'].value = '£ ' + format_float(subtotal + cost);

		return subtotal;
	};

	function check_form(form) {
		return true;
	}