Zooming in and out on an image

Is there a way to that users can zoom in and out of an image and even drag/scroll around if the image is larger than the viewing window. I looking for a way to creativly display my portfolio in a limited area. Any direction would me much appreciated.

http://www.senocular.com/downloads/index.php?subaction=showfull&id=1075179839&archive=&start_from=&ucat=2&kind=2

perfect, thanks!