function delItem(id) {
	document.cartForm.act.value = 'delitem';
	document.cartForm.pid.value = id;
	document.cartForm.submit();
}

function delCart() {
	document.cartForm.act.value = 'delall';
	document.cartForm.submit();
}

function updCart(id, newAmount) {
	document.cartForm.act.value = 'updall';
	document.cartForm.pid.value = id;
	document.cartForm.amount.value = newAmount;
	document.cartForm.submit();
}