app/views/messages/_notif.html.erb
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.0.2/jquery.min.js" type="text/javascript"></script>
<script src="/assets/jquery.growl.js" type="text/javascript"></script>
<link href="/assets/jquery.growl.css" rel="stylesheet" type="text/css" />
</head>
<script type="text/javascript">
var sender = "<%= @message.user.username %>";
var msg = "<%= @message.body %>"
if (msg.length > 35) {
msg = msg.substring(0,35) + "..."
}
$.growl.notice({ title: sender, message: msg});
</script>