A moveable displayed user interface element can be used to select an item displayed
on a user interface. Once the proper item or items are selected, an area of the
moveable displayed user interface element can be activated to perform an operation
on the selected item or items. The moveable displayed user interface element can
additionally display information about a selected item, and, in some cases, the
displayed information can be edited to modify the selected item. A versatile lightweight
system can be used to determine when a moveable object is over any of a number
of regions associated with specified targets. The lightweight system can be used
to implement moveable displayed user interface elements.
