Bus NS Widget makes the whole with the application Bus NS - City Transport Novi Sad, by the same author. In order to further simplify access to transport information, the Widget displays on the Android phone or tablet screen the timetable of both directions for the selected bus line for the next two hours.
For general instructions on installing the Widget on your phone or tablet, see the video link, and then apply the manual to "Bus NS Widget":
http://www.dailymotion.com/video/xd95yi_how-to-add-a-widget-on-your-android_tech