title: Superfish problem, "Object does not support this property or method"
body: <p>I'm getting an "Object does not support this property or method" error on the following line...</p>
  
  <pre><code>$("ul.sf-menu").superfish({ 
          pathClass: 'current-subs'
      });
  </code></pre>
  
  <p>My understanding is that superfish.js should have defined that method.  It's embarrassing to ask for help since it's likely to be something really dumb, but probably due to my ignorance of jQuery I'm not able to get a handle on it.</p>