title: date.format in Chrome 5
body: <p>I'm experiencing something really strange with my javascript in chrome with Date().format.</p>
  
  <p>If I use the console and type:</p>
  
  <pre><code>d = new Date(Date.parse("2010-05-28"))
  d.format("yyyy-MM-dd");
  ""
  d._toFormattedString();
  "Fri May 28 2010 00:00:00 GMT+0200 (W. Europe Daylight Time)"  
  </code></pre>
  
  <p>Anyone got any clue why I get an empty string? And it's only in Chrome, didn't happen in Chrome 4, and it doesn't happen in IE8/Firefox3.5</p>