Scroll a large nested layer within a viewport using native scroll from the container. It does not require drag and drop functionality from UI and it is faster than UI dragging.
Can be used to build a similar effect as in Google maps where you drag contents of a div acting as a viewport.
Download
http://archive.plugins.jquery.com/project/Dragscrollable
Demo
http://hitconsultants.com/dragscroll_scrollsync/scrollpane.html