Stop the currently-running animation on the matched elements

$("#stop").click(function(){
    $("div").stop();
});

syntax:

$(selector).stop(stopAll,goToEnd)

    Parameter                                                Description                                      

     stopAll                              Optional. A Boolean value specifying whether or

                                               not to stop the queued animations as well.   

                                                                 Default is false

     goToEnd                          Optional. A Boolean value specifying whether or

                                               not to complete all animations immediately.

                                                                  Default is false