The problem is your reference to boostrap's tooltip library. You can't link to it like that; it's not a CDN...
<script src="http://twitter.github.com/bootstrap/assets/js/bootstrap-tooltip.js"></script>
.
Use netdna's complete JS package or host the individual script yourself. See BootstrapCDN.
<script src="//netdna.bootstrapcdn.com/twitter-bootstrap/2.3.2/js/bootstrap.min.js"></script>