It helps to stop the remaining functions in the queue:
.clearQueue()
// To stop animation using clearQueue() .
$(document).ready(function(){
    $(“#start”).click(function(){
           $(“div”).animate({height:100},1200);
           $(“div”).animate({width:100},1200);
           $(“div”).animate({height:200},1700);
           $(“div”).animate({width:200},7500);
    });
    $(“#stop”).click(function(){
           $(“div”).clearQueue();
    });
});
