This is an example of the script in its original setup — adding usability-enhancing behaviors to grouped content, in this case navigational links. Users can reposition the boxes, open and close them as interested, and the script will remember those preferences between page views.

The dark purple heading at the top of each box is the "drag 'n' drop" handle for mouse navigation; the arrow icon inside each handle is the "press 'n' move" anchor for keyboard navigation; this icon is also the toggle button for opening and closing the box.