var selected;

function selectRowEffect(object, buttonSelect) {
	if (!selected) {
		if (document.getElementById) {
			selected = document.getElementById('defaultSelected');
		} else {
			selected = document.all['defaultSelected'];
		}
	}

	if (selected) selected.className = 'moduleRow';
	object.className = 'moduleRowSelected';
	selected = object;

	// one button is not an array
	if (document.checkout_payment.payment[0]) {
		document.checkout_payment.payment[buttonSelect].checked=true;
	} else {
		document.checkout_payment.payment.checked=true;
	}
}

function rowOverEffect(object) {
	if (object.className == 'moduleRow') object.className = 'moduleRowOver';
}

function rowOutEffect(object) {
	if (object.className == 'moduleRowOver') object.className = 'moduleRow';
}

function checkBox(object) {
	document.account_newsletter.elements[object].checked = !document.account_newsletter.elements[object].checked;
}

function check_form_optional(form_name) {
	var form = form_name;

	var firstname = form.elements['firstname'].value;
	var lastname = form.elements['lastname'].value;
	var street_address = form.elements['street_address'].value;

	if (firstname == '' && lastname == '' && street_address == '') {
		return true;
	} else {
		return check_form(form_name);
	}
}