title: Twitter Bootstrap Tooltip Data-selector?
body: <p>What is the data-selector option used for in <a href="http://twitter.github.com/bootstrap/javascript.html#tooltips" rel="noreferrer">Twitter's Bootstrap Tooltip</a>?  The description reads...</p>
  
  <pre><code>If a selector is provided, tooltip objects will be delegated to the specified targets.
  </code></pre>
  
  <p>But I don't understand its purpose or how to use it.</p>