Jcrop Image cropping
Jcrop is the quick and easy way to add image cropping functionality to your web application. It combines the ease-of-use of a typical jQuery plugin with a powerful cross-platform DHTML cropping engine that is faithful to familiar desktop graphics applications.
Default behavior of Jcrop.
This is the most basic example of Jcrop implementation. Since no event handlers are attached, it's not very exciting, but displays the out of box functionality.
This example ties several form values together with a simple event handler. The form values are updated as the selection is changed, thanks to Jcrop's onChange event handler.