title: GWT Collapsible Panel found in common google services?
body: <p>The GWT Incubator contains <a href="http://code.google.com/docreader/#p=google-web-toolkit-incubator&amp;s=google-web-toolkit-incubator&amp;t=CollapsiblePanel" rel="nofollow noreferrer">this widget</a>, but it doesn't provide the clean look and feel I am looking for. The Same page does show precisely the widget I would like to use:
  A thin resize bar with the small middle arrow icon which is clicked to hide/show a docked panel on the side of the page.</p>
  
  <p>The widget appears on many google services pages, which makes me suspect that it may be a common widget:
  <BR/><BR/><a href="http://www.google.com/reader/view" rel="nofollow noreferrer">Google Reader</a>
  <BR/>Slightly modified (animated) version on <a href="http://maps.google.com/maps" rel="nofollow noreferrer">Maps</a></p>
  
  <p>Does anyone where to find or know how to build this widget in GWT.</p>