title: Setting a property via property or setAttribute
body: <p>Is one of these more preferable than the other? Why? How about performance--if these are being called thousands of times? </p>
  
  <pre><code>A) element.setAttribute("disabled", true);
  B) element.disabled = true;
  </code></pre>
  
  <p>They both seem to disable an input[text] element in FF 4.</p>