How to make an object move on the screen when scrolling?

Question

JavaScript

I recently started studying javascript, so I don’t know much yet, the question arose of making an object (picture) on the site that will scroll when scrolling, the scroll needs to be smooth. At me it is impossible yet, it would be desirable an example or the help with it to receive.

Answer 1

position: fixed
jsfiddle.net/tovic/fwkWG

Answer 2

There is no time to explain.
habrahabr.ru/post/141687
Yes, and everything has already been told.

Answer 3

niceScroll , Demo , just open demo not in crome. Something in my demo is buggy, but it works fine in the project.