jQuery Forum

I am very new to jQuery and try to learn it now. I want to use jQuery for a website that uses the Parallax Scrolling effect. I found the website dentsunetwork.com and I really like the effects. How did they create the effect of the elements moving after I stop to scroll? I want to use this effect on my site. After I stop scrolling elements in the background should move a little bit and then stop. How is that possible?

Thank you in advance.