function upDn(ud) {
	if (ud == 'down') {
		Effect.BlindDown('newsletter_box', {duration: .5});
		$('button_newslettersignup').update('<a href="#" onclick="upDn(\'up\'); return false;"><img src="/images/button_newslettersignup.gif" width="157" height="28" alt="Newsletter Signup" border="0" /></a>');
	} else if (ud == 'up') {
		Effect.BlindUp('newsletter_box', {duration: .5});
		$('button_newslettersignup').update('<a href="#" onclick="upDn(\'down\'); return false;"><img src="/images/button_newslettersignup.gif" width="157" height="28" alt="Newsletter Signup" border="0" /></a>');
	}
}