The LSAPI Navigation API exposes the navigation hierarchy and provides functionality to control navigation in the portal. You can use the Navigation API to manipulate the navigation iViews and/or regular portal navigation.
Client-Side Navigation API
The Navigation API is comprised of the following:
NavigationNode Object : represents a node in the navigation tree
AFPModel Object : provides read-only access to the navigation tree of the current user
AFPController Object : controls access to navigation events
AFPService Object : enables actions, such as navigation to a specific node
setInitialNodes Method : defines the display sequence of nodes in top-level navigation
Tutorial
Tutorial: Using the Navigation API
Guides you through an implementation of a basic quick launch utility