<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<title>jquery星级评论打分组件</title>
<script src="/ajaxjs/jquery-1.6.2.min.js"></script>
<script>
var pRate = function(box,callBack){
this.Index = null;
var B = $("#"+box),
rate = B.children("i"),
w = rate.width(),
n = rate.length,
me = this;
for(var i=0;i<n;i++){
rate.eq(i).css({
‘width‘:w*(i+1),
‘z-index‘:n-i
});
}
rate.hover(function(){
var S = B.children("i.select");
$(this).addClass("hover").siblings().removeClass("hover");
if($(this).index()>S.index()){
S.addClass("hover");
}
},function(){
rate.removeClass("hover");
})
rate.click(function(){
rate.removeClass("select hover");
$(this).addClass("select");
me.Index = $(this).index() + 1;
if(callBack){callBack();}
})
}
</script>
<style type="text/css">
h1{font:26px/3 ‘microsoft yahei‘,‘simhei‘;color:#000;text-indent:2em;text-shadow:1px 1px 2px #ccc}
.p_rate{height:14px;position:relative;width:80px;overflow:hidden;display:inline-block;background:url(/jscss/demoimg/201208/rate.png) repeat-x;margin:40px 100px}
.p_rate i{position:absolute;top:0;left:0;cursor:pointer;height:14px;width:16px;background:url(/jscss/demoimg/201208/rate.png) repeat-x 0 -500px}
.p_rate .select{background-position:0 -32px}
.p_rate .hover{background-position:0 -16px}
</style>
</head>
<body>
<h1>jquery星级评论打分组件</h1>
<span class="p_rate" id="p_rate">
<i title="1分"></i>
<i title="2分"></i>
<i title="3分"></i>
<i title="4分"></i>
<i title="5分"></i>
</span>
<script>
var Rate = new pRate("p_rate",function(){
alert(Rate.Index+‘分‘)
});
</script>
</body>
</html>
原文：http://www.cnblogs.com/youtianxia/p/3858055.html