a global navigation system that displays an electronic map for guiding a user to a destination contains : an input module to receive commands from the user ; a plurality of navigation modules to initiate navigation functions in different countries and regions ; a position detection module to detect the current position of the global navigation system ; a region selecting module to direct to a specific country and region in response to the current position of the global navigation system and to select an electronic map that covers the current position of the global navigation system ; and a display module to display the electronic map and related information .