Create an attractive loading panel in jQuery

One of the important things about web programming, especially when using AJAX, from a usability standpoint is to provide a responsive user interface to the audience. This level of responsiveness to the user’s actions can be achieved in many different ways; showing messages, changing colors, adding animation, changing contexts, basically anything that provides a natural transition from the action performed by the user to the reaction by the application to indicate that their action is actually causing something to happen.