<style>div { margin:3px; width:40px; height:40px;
position:absolute; left:0px; top:60px;
background:green; display:none; }
div.newcolor { background:blue; }
p { color:red; } </style>
<script type="text/javascript" src="/js/jquery.js"></script>
<p>队列长度是:<span></span></p>
div.animate({left:'+=200'},2000);
div.animate({left:'-=200'},1500);
div.slideUp("normal", runIt);
$("span").text( n.length );