仿淘宝星级评分效果

<!--
    # 星级评分
    # star:value = 分数
-->
<div class="shop-rating">
    <span class="title">物流公司的服务：</span>
    <ul class="rating-level" id="stars2">
        <li><a class="one-star" star:value="20" href="#">20</a></li>
        <li><a class="two-stars" star:value="40" href="#">40</a></li>
        <li><a class="three-stars" star:value="60" href="#">60</a></li>
        <li><a class="four-stars" star:value="80" href="#">80</a></li>
        <li><a class="five-stars" star:value="100" href="#">100</a></li>
    </ul>
    <span class="result" id="stars2-tips"></span>
    <input type="hidden" id="stars2-input" name="b" value="" size="2" />
</div>
<!-- END 星级评分 -->

---------css---------

/* 星级评分 */
.shop-rating {
    height: 25px;
    overflow: hidden;
    zoom: 1;
    padding: 2px 0px;
    position: relative;
    z-index: 999;
}
.shop-rating span {
    height: 23px;
    display: block;
    line-height: 23px;
    float: left;
}
.shop-rating span.title {
    width: 125px;
    text-align: right;
    margin-right: 5px;
}
.shop-rating ul {
    float: left;
    margin:0;padding:0
}
.shop-rating .result {
    margin-left: 20px;
    padding-top: 2px;
}
.shop-rating .result span {
    color: #ff6d02;
}
.shop-rating .result em {
    color: #f60;
    font-family: arial;
    font-weight: bold;
}
.shop-rating .result strong {
    color: #666666;
    font-weight: normal;
}
.rating-level,
.rating-level a {
    background: url(http://a.tbcdn.cn/app/rc/img/star_v2.png) no-repeat scroll 1000px 1000px;
}
.rating-level {
    background-position: 0px 0px;
    width: 120px;
    height: 23px;
    position: relative;
    z-index: 1000;
}
.rating-level li {
    display: inline;
}
.rating-level a {
    line-height: 23px;
    height: 23px;
    position: absolute;
    top: 0px;
    left: 0px;
    text-indent: -999em;
    *zoom: 1;
    outline: none;
}
.rating-level a.one-star {
    width: 20%;
    z-index: 6;
}
.rating-level a.two-stars {
width: 40%;
z-index: 5;
}
.rating-level a.three-stars {
    width: 60%;
    z-index: 4;
}
.rating-level a.four-stars {
    width: 80%;
    z-index: 3;
}
.rating-level a.five-stars {
    width: 100%;
    z-index: 2;
}
.rating-level .current-rating,.rating-level a:hover{background-position:0 -28px;}
.rating-level a.one-star:hover,.rating-level a.two-stars:hover,.rating-level a.one-star.current-rating,.rating-level a.two-stars.current-rating{background-position:0 -116px;}
.rating-level .three-stars .current-rating,.rating-level .four-stars .current-rating,.rating-level .five-stars .current-rating{background-position:0 -28px;}

------------js----------------

var Class = {
    create: function() {
        return function() { this.initialize.apply(this, arguments); }
    }
}
var Extend = function(destination, source) {
    for (var property in source) {
        destination[property] = source[property];
    }
}
function stopDefault( e ) {
     if ( e && e.preventDefault ){
        e.preventDefault();
    }else{
        window.event.returnValue = false;
    }
    return false;
}
/**
* 星星打分组件
*
* @author    Yunsd
* @date        2010-7-5
*/
var Stars = Class.create();
Stars.prototype = {
    initialize: function(star,options) {
        this.SetOptions(options); //默认属性
        var flag = 999; //定义全局指针
        var isIE = (document.all) ? true : false; //IE?
        var starlist = document.getElementById(star).getElementsByTagName('a'); //星星列表
        var input = document.getElementById(this.options.Input) || document.getElementById(star+"-input"); // 输出结果
        var tips = document.getElementById(this.options.Tips) || document.getElementById(star+"-tips"); // 打印提示
        var nowClass = " " + this.options.nowClass; // 定义选中星星样式名
        var tipsTxt = this.options.tipsTxt; // 定义提示文案
        var len = starlist.length; //星星数量
        
        for(i=0;i<len;i++){ // 绑定事件 点击 鼠标滑过
            starlist[i].value = i;
            starlist[i].onclick = function(e){
                stopDefault(e);
                this.className = this.className + nowClass;
                flag = this.value;
                input.value = this.getAttribute("star:value");
                tips.innerHTML = tipsTxt[this.value]
            }
            starlist[i].onmouseover = function(){
                if (flag< 999){
                    var reg = RegExp(nowClass,"g");
                    starlist[flag].className = starlist[flag].className.replace(reg,"")
                }
            }
            starlist[i].onmouseout = function(){
                if (flag< 999){
                    starlist[flag].className = starlist[flag].className + nowClass;
                }
            }
        };
        if (isIE){ //FIX IE下样式错误
            var li = document.getElementById(star).getElementsByTagName('li');
            for (var i = 0, len = li.length; i < len; i++) {
                var c = li[i];
                if (c) {
                    c.className = c.getElementsByTagName('a')[0].className;
                }
            }
        }
    },
    //设置默认属性
    SetOptions: function(options) {
        this.options = {//默认值
            Input:            "",//设置触保存分数的INPUT
            Tips:            "",//设置提示文案容器
            nowClass:    "current-rating",//选中的样式名
            tipsTxt:        ["1分-严重不合格","2分-不合格","3分-合格","4分-优秀","5分-完美"]//提示文案
        };
        Extend(this.options, options || {});
    }
}

---------全部代码-----------

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>Title</title>
<meta name="description" content="" />
<meta name="keywords" content="" />
<meta name="owner" content="" />
<meta name="robots" content="index, follow" />
<meta name="googlebot" content="index, follow" />
<style type="text/css">
<!--
body {background:#fff;text-align:center;margin:0 auto;padding: 0;font:12px Arial;color:#000;line-height:1.2em}
div,form,img,ul,ol,li,dl,dt,dd {margin: 0; padding: 0; border: 0;}
h1,h2,h3,h4,h5,h6 { margin:0; padding:0;}
table,td,tr,th{font-size:12px;}
/* 星级评分 */
.shop-rating {
    height: 25px;
    overflow: hidden;
    zoom: 1;
    padding: 2px 0px;
    position: relative;
    z-index: 999;
}
.shop-rating span {
    height: 23px;
    display: block;
    line-height: 23px;
    float: left;
}
.shop-rating span.title {
    width: 125px;
    text-align: right;
    margin-right: 5px;
}
.shop-rating ul {
    float: left;
    margin:0;padding:0
}
.shop-rating .result {
    margin-left: 20px;
    padding-top: 2px;
}
.shop-rating .result span {
    color: #ff6d02;
}
.shop-rating .result em {
    color: #f60;
    font-family: arial;
    font-weight: bold;
}
.shop-rating .result strong {
    color: #666666;
    font-weight: normal;
}
.rating-level,
.rating-level a {
    background: url(http://a.tbcdn.cn/app/rc/img/star_v2.png) no-repeat scroll 1000px 1000px;
}
.rating-level {
    background-position: 0px 0px;
    width: 120px;
    height: 23px;
    position: relative;
    z-index: 1000;
}
.rating-level li {
    display: inline;
}
.rating-level a {
    line-height: 23px;
    height: 23px;
    position: absolute;
    top: 0px;
    left: 0px;
    text-indent: -999em;
    *zoom: 1;
    outline: none;
}
.rating-level a.one-star {
    width: 20%;
    z-index: 6;
}
.rating-level a.two-stars {
width: 40%;
z-index: 5;
}
.rating-level a.three-stars {
    width: 60%;
    z-index: 4;
}
.rating-level a.four-stars {
    width: 80%;
    z-index: 3;
}
.rating-level a.five-stars {
    width: 100%;
    z-index: 2;
}
.rating-level .current-rating,.rating-level a:hover{background-position:0 -28px;}
.rating-level a.one-star:hover,.rating-level a.two-stars:hover,.rating-level a.one-star.current-rating,.rating-level a.two-stars.current-rating{background-position:0 -116px;}
.rating-level .three-stars .current-rating,.rating-level .four-stars .current-rating,.rating-level .five-stars .current-rating{background-position:0 -28px;}
-->
</style>
</head>
 <body>
<div class="shop-rating">
    <span class="title">物流公司的服务：</span>
    <ul class="rating-level" id="stars1">
        <li><a class="one-star" star:value="100" href="#">100</a></li>
        <li><a class="two-stars" star:value="200" href="#">200</a></li>
        <li><a class="three-stars" star:value="300" href="#">300</a></li>
        <li><a class="four-stars" star:value="400" href="#">400</a></li>
        <li><a class="five-stars" star:value="500" href="#">500</a></li>
    </ul>
    <span class="result" id="stars1-tips"></span>
    <input type="hidden" id="stars1-input" name="a" value="" size="2" />
</div>
<!--
    # 星级评分
    # star:value = 分数
-->
<div class="shop-rating">
    <span class="title">物流公司的服务：</span>
    <ul class="rating-level" id="stars2">
        <li><a class="one-star" star:value="1" href="#">1</a></li>
        <li><a class="two-stars" star:value="2" href="#">2</a></li>
        <li><a class="three-stars" star:value="3" href="#">3</a></li>
        <li><a class="four-stars" star:value="4" href="#">4</a></li>
        <li><a class="five-stars" star:value="5" href="#">5</a></li>
    </ul>
    <span class="result" id="stars2-tips"></span>
    <input type="hidden" id="stars2-input" name="b" value="" size="2" />
</div>
<!-- END 星级评分 -->
<input type="button" value="test" onclick="teststars()" />
<script type="text/javascript">
var Class = {
    create: function() {
        return function() { this.initialize.apply(this, arguments); }
    }
}
var Extend = function(destination, source) {
    for (var property in source) {
        destination[property] = source[property];
    }
}
function stopDefault( e ) {
     if ( e && e.preventDefault ){
        e.preventDefault();
    }else{
        window.event.returnValue = false;
    }
    return false;
}
/**
 * 星星打分组件
 *
 * @author    Yunsd
 * @date        2010-7-5
 */
var Stars = Class.create();
Stars.prototype = {
    initialize: function(star,options) {
        this.SetOptions(options); //默认属性
        var flag = 999; //定义全局指针
        var isIE = (document.all) ? true : false; //IE?
        var starlist = document.getElementById(star).getElementsByTagName('a'); //星星列表
        var input = document.getElementById(this.options.Input) || document.getElementById(star+"-input"); // 输出结果
        var tips = document.getElementById(this.options.Tips) || document.getElementById(star+"-tips"); // 打印提示
        var nowClass = " " + this.options.nowClass; // 定义选中星星样式名
        var tipsTxt = this.options.tipsTxt; // 定义提示文案
        var len = starlist.length; //星星数量
        
        for(i=0;i<len;i++){ // 绑定事件 点击 鼠标滑过
            starlist[i].value = i;
            starlist[i].onclick = function(e){
                stopDefault(e);
                this.className = this.className + nowClass;
                flag = this.value;
                input.value = this.getAttribute("star:value");
                tips.innerHTML = tipsTxt[this.value]
            }
            starlist[i].onmouseover = function(){
                if (flag< 999){
                    var reg = RegExp(nowClass,"g");
                    starlist[flag].className = starlist[flag].className.replace(reg,"")
                }
            }
            starlist[i].onmouseout = function(){
                if (flag< 999){
                    starlist[flag].className = starlist[flag].className + nowClass;
                }
            }
        };
        if (isIE){ //FIX IE下样式错误
            var li = document.getElementById(star).getElementsByTagName('li');
            for (var i = 0, len = li.length; i < len; i++) {
                var c = li[i];
                if (c) {
                    c.className = c.getElementsByTagName('a')[0].className;
                }
            }
        }
    },
    //设置默认属性
    SetOptions: function(options) {
        this.options = {//默认值
            Input:            "",//设置触保存分数的INPUT
            Tips:            "",//设置提示文案容器
            nowClass:    "current-rating",//选中的样式名
            tipsTxt:        ["1分-严重不合格","2分-不合格","3分-合格","4分-优秀","5分-完美"]//提示文案
        };
        Extend(this.options, options || {});
    }
}
/* For TEST */
function teststars(){
    alert(document.getElementById("stars1-input").value + "|" + document.getElementById("stars2-input").value)
}
var Stars1 = new Stars("stars1",{nowClass:"current-rating",tipsTxt:["100分-严重不合格","200分-不合格","300分-合格","400分-优秀","500分-完美"]})
var Stars2 = new Stars("stars2")
</script>
 </body>
</html>