1 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
 2 <html xmlns="http://www.w3.org/1999/xhtml">
 3 <head>
 4 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 5 <title>星级评分系统</title>
 6 <style> 
 7 body,div,ul,li,p{margin:0;padding:0;}
 8 body{color:#666;font:12px/1.5 Arial;}
 9 ul{list-style-type:none;}
10 #star{position:relative;width:600px;margin:10px auto;}
11 #star ul,#star span{float:left;display:inline;height:19px;line-height:19px;}
12 #star ul{margin:0 10px;}
13 #star li{float:left;width:24px;cursor:pointer;text-indent:-9999px;background:url(/jscss/demoimg/201206/star.png) no-repeat;}
14 #star strong{color:#f60;padding-left:10px;}
15 #star li.on{background-position:0 -28px;}
16 #star p{position:absolute;top:20px;width:159px;height:60px;display:none;background:url(/jscss/demoimg/201206/icon.gif) no-repeat;padding:7px 10px 0;}
17 #star p em{color:#f60;display:block;font-style:normal;}
18 </style>
19 <script type="text/javascript"> 
20 window.onload = function ()
21 {
22     var oStar = document.getElementById("star");
23     var aLi = oStar.getElementsByTagName("li");
24     var oUl = oStar.getElementsByTagName("ul")[0];
25     var oSpan = oStar.getElementsByTagName("span")[1];
26     var oP = oStar.getElementsByTagName("p")[0];
27     var i = iScore = iStar = 0;
28     var aMsg = [
29                 "很不满意|差得太离谱，与卖家描述的严重不符，非常不满",
30                 "不满意|部分有破损，与卖家描述的不符，不满意",
31                 "一般|质量一般，没有卖家描述的那么好",
32                 "满意|质量不错，与卖家描述的基本一致，还是挺满意的",
33                 "非常满意|质量非常好，与卖家描述的完全一致，非常满意"
34                 ]
35     
36     for (i = 1; i <= aLi.length; i++)
37     {
38         aLi[i - 1].index = i;
39         //鼠标移过显示分数
40         aLi[i - 1].onmouseover = function ()
41         {
42             fnPoint(this.index);
43             //浮动层显示
44             oP.style.display = "block";
45             //计算浮动层位置
46             oP.style.left = oUl.offsetLeft + this.index * this.offsetWidth - 104 + "px";
47             //匹配浮动层文字内容
48             oP.innerHTML = "<em><b>" + this.index + "</b> 分 " + aMsg[this.index - 1].match(/(.+)\|/)[1] + "</em>" + aMsg[this.index - 1].match(/\|(.+)/)[1]
49         };
50         //鼠标离开后恢复上次评分
51         aLi[i - 1].onmouseout = function ()
52         {
53             fnPoint();
54             //关闭浮动层
55             oP.style.display = "none"
56         };
57         //点击后进行评分处理
58         aLi[i - 1].onclick = function ()
59         {
60             iStar = this.index;
61             oP.style.display = "none";
62             oSpan.innerHTML = "<strong>" + (this.index) + " 分</strong> (" + aMsg[this.index - 1].match(/\|(.+)/)[1] + ")"
63         }
64     }
65     //评分处理
66     function fnPoint(iArg)
67     {
68         //分数赋值
69         iScore = iArg || iStar;
70         for (i = 0; i < aLi.length; i++) aLi[i].className = i < iScore ? "on" : "";    
71     }
72 };
73 </script>
74 </head>
75 <body>
76 <div id="star">
77     <span>点击星星就能打分</span>
78     <ul>
79         <li><a href="javascript:;">1</a></li>
80         <li><a href="javascript:;">2</a></li>
81         <li><a href="javascript:;">3</a></li>
82         <li><a href="javascript:;">4</a></li>
83         <li><a href="javascript:;">5</a></li>
84     </ul>
85     <span></span>
86     <p></p>
87 </div>
88 </body>
89 </html>

http://www.codefans.net/jscss/code/3458.shtml