Really cool JS tools: does anybody know what this is?
<p>Very cool JS components: <a href="http://www.msnbc.msn.com/id/40664031/ns/us_news-crime_and_courts/" rel="nofollow">http://www.msnbc.msn.com/id/40664031/ns/us_news-crime_and_courts/</a></p>

<p>Check out the icons next to the vertical scrollbar in your browser, and the expanding 'sharing' toolbar at the bottom.</p>

<p>Does anybody know if these are publicly available components? Has anybody seen these before?</p>

<p>Edit: I'm talking about:</p>

<ol>
<li>The way the sections in the bottom bar expand into tabs to show more controls. Try clicking on "Login and settings", for example.</li>
<li>The way the links near the scrollbar take you to the respective sections. Very cool tool to aid user discovery in a long page.</li>
</ol>
