scrolling banner on click of thumbnail image

[fbm247]

Hi Peeps,

 

Keep it short, come across this site http://www.xero.com/

 

I really like that when you click on one of the thumbnail faces under the main banner it slides across to the next image and does it so smoothly it doesn't matter if your jumping to the next image or the last image.

 

How do i do this, where do i start, any guides or free scripts i can play with to learn it?

 

I am good with CSS/HTML and i presume this is done with Jquery or JS.

 

Any pointers would be great.