<html>
<head>
<script type="text/javascript" src="/jquery/jquery.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$("#start").click(function(){
$("#box").animate({height:300},"slow");
$("#box").animate({width:300},"slow");
$("#box").animate({height:100},"slow");
$("#box").animate({width:100},"slow");
});
$("#stop").click(function(){
$("#box").stop(true,true);
});
});
</script>
</head>
<body>
<p><button id="start">Start Animation</button><button id="stop">Stop Animation</button></p>
<div id="box" style="background:#98bf21;height:100px;width:100px;position:relative">
</div>
</body>
</html>