jquery实现用户打分评分特效

<script type="text/javascript">
$(function(){
 
//简洁用户评分代码
$(".pfxtFen li").click(function(){
$(this).addClass("pfxtCur");
$(this).prevAll().addClass("pfxtCur");
$(this).nextAll().removeClass("pfxtCur");
});
 
$(".pfxtFen li").dblclick(function(){
$(".pfxtFen li").removeClass("pfxtCur");
});
 
})
</script>

<style type="text/css">
*{margin:0;padding:0; font-family:"微软雅黑"}
ul{ list-style:none;}
/*用户评分*/
.pingfenxitong{
padding:15px 0;
width:500px;
margin:0 auto;
}
.pingfenList{
float:left;
width:500px;
padding-right:20px;
}
.pfxtTitle{
font-weight:bold;
font-size:1.2em;
padding:4px 0;
}
.pfxtText{
line-height:25px;
}
.pfxtFen{
margin:10px 0;
}
.pfxtFen li{
float:left;
width:98px;
height:30px;
text-align:center;
line-height:30px;
border:#ddd 1px solid;
background:#f1f1f1;
cursor:pointer;
}
.pfxtFen li.pfxtCur{
background:#308A95;
color:#fff;
border:#308A95 1px solid;
}
 
</style>

<div class="pingfenxitong">
 
<div class="pingfenList">
 
<div class="pfxtTitle">功能：</div>
<div class="pfxtText">你觉得这个创意在功能上优秀吗？</div>
<ul class="pfxtFen" title="双击取消评分">
<li>1</li>
<li>2</li>
<li>3</li>
<li>4</li>
<li>5</li>
<div class="clearfix"></div>
</ul>
 
<div class="pfxtRight"></div>
<div class="clearfix"></div>
</div>
 
<div class="pingfenList">
<div class="pfxtTitle">外观：</div>
<div class="pfxtText">你觉得这个创意在外观上优秀吗？</div>
<ul class="pfxtFen" title="双击取消评分">
<li>1</li>
<li>2</li>
<li>3</li>
<li>4</li>
<li>5</li>
<div class="clearfix"></div>
</ul>
<div class="pfxtRight"></div>
<div class="clearfix"></div>
</div>
 
<div class="pingfenList">
<div class="pfxtTitle">成本：</div>
<div class="pfxtText">你觉得这个创意在成本上优秀吗？</div>
<ul class="pfxtFen" title="双击取消评分">
<li>1</li>
<li>2</li>
<li>3</li>
<li>4</li>
<li>5</li>
<div class="clearfix"></div>
</ul>
<div class="pfxtRight"></div>
<div class="clearfix"></div>
</div>
 
<div class="pingfenList">
<div class="pfxtTitle">难度：</div>
<div class="pfxtText">你觉得这个创意在难度上可行吗？</div>
<ul class="pfxtFen" title="双击取消评分">
<li>1</li>
<li>2</li>
<li>3</li>
<li>4</li>
<li>5</li>
<div class="clearfix"></div>
</ul>
<div class="pfxtRight"></div>
<div class="clearfix"></div>
</div>
 
<div class="clearfix"></div>
 
</div>