Please note all client side code is from http://www.defusion.org.uk/code/javascript-image-cropper-ui-using-prototype-scriptaculous/
Please go there for the latest release of the client side code, as well as to donate.
Server-side code [v1] : Sanjay Uttam 9.6.2008 ==> http://www.geeksWithBlogs.net/SanjayU