title: Javascript library for dockable panels/tabs?
body: <p>In the process of converting a .NET rich application to Javascript.  One of the GUI features folks liked a lot was to rearrange their application layout.  In .NET this was accomplished via Sandock: </p>
  
  <p><a href="http://www.divelements.com/net/controls/sanddock/screenshots.aspx" rel="noreferrer">http://www.divelements.com/net/controls/sanddock/screenshots.aspx</a></p>
  
  <p>Anything like this for Javascript?</p>