An apparatus and method is disclosed for displaying a secondary layer of
information in a graphical user interface where the second layer of
information is revealed when a point on the circumference defined by
radius "r" originating at the x,y coordinates of the cursor covers a
point in a secondary content of the second layer. The circumference may
be set to trigger appearance of secondary content gradually, all at once
or to trigger the appearance of all secondary content in a predefined
zone.