function newslettersubmit() {
	var email = $('emailaddress').getValue();

	new Ajax.Request('subscribe.php?email=' + email, {
	  onSuccess: function(response) {
		resp = response.responseText;
	    if (resp.indexOf('err') == 0) {
			msg = resp.substr(4);
			if (msg.indexOf('already subscribed') > -1)
				msg = 'You are already subscribed.';
			if (msg.indexOf('Invalid') > -1)
				msg = 'Invalid Email Address.';
			$('form').update('<div id="message" class="error"><a href="#" onclick="revert(); return false">'+msg+'</a></div>');
		}
		else {
			$('form').update('<div id="message">'+resp+'</div>');
		}
	  }
	});
}

function revert() {
	$('form').update($('originalform').innerHTML);
}