Draggable

I cannot figure out how to use Draggable
Can someone give me the full code of a simple program to demo it?
I tried the code from http://ui.jquery.com/demos/draggable#default and
placed it at /jquery.ui-1.5.3/demos/functional/, taking the / off the
front of css and js, but it did not work
They give little snippits of js and html but I dont know the wrapper
around it, and their demos show everything