A drop and drop shopping cart example can be see here
Scriptaculous can be downloaded from here...
Download and link the scriptaculouos.js file to your html page. Using scriptaculous effects is very easy
Effect.Appear('elementid'); (elementid is the id of a DOM element)
Similar examples with demo can be seen here
Scriptaculous library by itself is simple, but Ruby on Rails makes it even simpler. Rails has wrappers around scriptacuolus methods.
i :onclick => visual_effect(:highlight, 'msg', :duration => 1.0)
ii. <%= draggable_element 'idOne', :revert => true %>