How can i make and image that stays in the same place as you scroll through a page?

[Kevin :)]

so i have a myspace and i want to add a facebook badge to my page which has images and links, how can i make this linked image stay in the same spot as you scroll through the page like say in the bottom right of the page and when you scroll down to the lower part of the page the image stays in same spot on the bottom right, if anyone has an example of a page that uses this or something please post it as i have seen some but dont remember... any feedback is appreciated, thanks in advance...