Why isn't a jQuery Tools tooltip showing up as a jQuery extension?

I have a Boilerplate 2.0-based page and want to add tooltips. Under the call to load jQuery, I add a call to load the jQuery-tools bundle, and then in js/script.js call:

jQuery(".has-tooltip").tooltip();

The result? No tooltips show up; Chrome's JavaScript console gives:

jQuery('.has-tooltip').tooltip();
script.js:30Uncaught TypeError: Object [object Object] has no method 'tooltip'

So far as I can tell, and from the order of things in index.html, the following happ开发者_StackOverflow中文版ens:

1. I load jQuery.

2. I load jQuery Tools, without apparent error.

3. I call jQuery().tooltip(). This errors out, and doesn't display tooltips.

What can I do to ensure that the Tools extension is being registered to jQuery and I can call jQuery().tooltip(...)?

ATdhvaanckse,

--edit--

It's for a portfolio; the URL is:

http://JonathanHayward.com/portfolio

I've tried to pull things in to local loading (i.e. removed the CDN jQuery hit); this has not produced observable differences.

First, You load jQuery twice, also have two body and html closing tags and fix Modernizr issue which is not defined