krpano中有好多object，krpano Plugin Interface, krpano Plugin Object, krpano Base Object, krpano Interface Object, krpano Javascript Interface... 真心觉得官方文档的组织形式太晦涩了，所以这里整理下

Hotspots are areas in the panorama, which react on mouse hovering or clicking. They can be used to load other panoramas, links to other urls, change the viewing ...