<div class="rate"> 
  <div class="big_rate"> 
    <span rate="2"> </span> 
    <span rate="4"> </span> 
    <span rate="6"> </span> 
    <span rate="8"> </span> 
    <span rate="10"> </span> 
    <div style="width:45px;" class="big_rate_up"></div> 
  </div> 
  <p><span id="s" class="s"></span><span id="g" class="g"></span></p> 
  <div id="my_rate"></div> 
</div> 

.rate{width:600px; margin:100px auto; font-size:14px; position:relative; padding:10px 0;} 
.rate p {margin:0; padding:0; display:inline; height:40px; overflow:hidden; position:absolute; 
top:0; left:100px; margin-left:140px;} 
.rate p span.s {font-size:36px; line-height:36px; float:left; font-weight:bold; color:#DD5400;} 
.rate p span.g {font-size:22px; display:block; float:left; color:#DD5400;} 
.big_rate {width:140px; height:28px; text-align:left; position:absolute; top:3px; left:85px; 
display:inline-block; background:url(star.gif) left bottom repeat-x;} 
.big_rate span {display:inline-block; width:24px; height:28px; position:relative; z-index:1000; 
 cursor:pointer; overflow:hidden;} 
.big_rate_up {width:140px; height:28px; position:absolute; top:0; left:0; 
 background:url(star.gif) left top;} 
#my_rate{ position:absolute; margin-top:40px; margin-left:100px} 
#my_rate span{color:#dd5400; font-weight:bold} 

function get_rate(rate){ 
  ....do some thing 
} 

rate=rate.toString(); 
  var s; 
  var g; 
  $("#g").show(); 
  if (rate.length>=3){ 
    s=10;  
    g=0; 
    $("#g").hide(); 
  }else if(rate=="0"){ 
    s=0; 
    g=0; 
  }else{ 
    s=rate.substr(0,1); 
    g=rate.substr(1,1); 
  } 
  $("#s").text(s); 
  $("#g").text("."+ g); 

$(".big_rate_up").animate({width:(parseInt(s)+parseInt(g)/10) * 14,height:26},1000); 
$(".big_rate span").each(function(){ 
    $(this).mouseover(function(){ 
      $(".big_rate_up").width($(this).attr("rate") * 14 ); 
      $("#s").text($(this).attr("rate")); 
      $("#g").text(""); 
    }).click(function(){ 
      ...ajax异步提交给后台处理 
    }) 
}) 

var score = $(this).attr("rate"); 
$("#my_rate").html("您的评分：<span>"+score+"</span>"); 
  $.ajax({ 
     type: "POST", 
     url: "post.php", 
     data:"score="+score, 
     success: function(msg){ 
      if(msg==1){ 
        $("#my_rate").html("<span>您已经评过分了！</span>"); 
      }else if(msg==2){ 
        $("#my_rate").html("<span>您评过分了！</span>"); 
      }else{ 
        get_rate(msg); 
      } 
    } 
  }); 

$(".big_rate").mouseout(function(){ 
  $("#s").text(s); 
  $("#g").text("."+ g); 
  $(".big_rate_up").width((parseInt(s)+parseInt(g)/10) * 14); 
}) 

$(function(){ 
  get_rate(88); 
}); 

include_once ('connect.php'); //连接数据库 
$score = $_POST['score']; 
if (isset ($score)) { 
  $cookiestr = getip(); 
  $time = time(); 
  if (isset ($_COOKIE['person']) && $_COOKIE['person'] == $cookiestr) { 
    echo "1"; 
  } 
  elseif (isset ($_COOKIE['rate_time']) && ($time -intval($_COOKIE['rate_time'])) < 600) { 
    echo "2"; 
  } else { 
    $query = mysql_query("update raty set voter=voter+1,total=total+'$score' where id=1"); 
    $query = mysql_query("select * from raty where id=1"); 
    $rs = mysql_fetch_array($query); 
    $aver = $rs['total'] / $rs['voter']; 
    $aver = round($aver, 1) * 10; 
    //设置COOKIE 
    setcookie("person", $cookiestr, time() + 3600); 
    setcookie("rate_time", time(), time() + 3600); 
    echo $aver; 
  } 
} 

CREATE TABLE IF NOT EXISTS `raty` ( 
 `id` int(11) NOT NULL auto_increment, 
 `voter` int(10) NOT NULL default '0' COMMENT '评分次数', 
 `total` int(11) NOT NULL default '0' COMMENT '总分', 
 PRIMARY KEY (`id`) 
) ENGINE=MyISAM DEFAULT CHARSET=utf8;