function revealDefaults () {
	Element.toggle($F('request_type'));
}

function revealRequestType (obj) {
	if (Element.visible('business') && ($F(obj) != 'business'))
		Element.toggle('business');
	else if (Element.visible('personal') && ($F(obj) != 'personal'))
		Element.toggle('personal');
	if ($F(obj) != 'none')
		Element.toggle($F(obj));
}