Patent ID: 8843850

Claim:
A method comprising: displaying a base map; displaying an index with the base map, the index concurrently displaying a hierarchy of retrieval bars comprising: a first retrieval bar for switching categories of mapsets; a second retrieval bar, configured to be updated by a selection in the first retrieval bar, the second retrieval bar for switching subcategories of mapsets; a third retrieval bar, configured to be updated by a selection in the second retrieval bar, the third retrieval bar for calling forth clickable lists of mapsets within selected categories and subcategories of mapsets, and a fourth retrieval bar, configured to be updated by a selection in the third retrieval bar, the fourth retrieval bar for displaying, in part, designated portions of a list that is currently displayed; receiving an index selection in the fourth retrieval bar; and responsive to receiving the index selection, displaying associated mapset information.