window.onload = function(){
var star = document.getElementById('star');
var ul = star.getElementsByTagName('ul')[0];
var li = star.getElementsByTagName('li');
var span = star.getElementsByTagName('span')[1];
var p = star.getElementsByTagName('p')[0];
var evl = ["很不满意|差得太离谱，与卖家描述的严重不符，非常不满",
"不满意|部分有破损，与卖家描述的不符，不满意",
"一般|质量一般，没有卖家描述的那么好",
"满意|质量不错，与卖家描述的基本一致，还是挺满意的",
"非常满意|质量非常好，与卖家描述的完全一致，非常满意"];
var iStar = iArg = 0;
for(i = 1;i <= li.length;i++){
li[i-1].point = i;
li[i-1].onmouseover = function(){
fnPoint(this.point);
p.style.left = ul.offsetLeft + this.point * this.offsetWidth - 104 + 'px';
p.innerHTML = '<em><b>'+this.point+'分</b>'+ evl[this.point-1].match(/(.+)\|/)[1] + '</em>' + evl[this.point-1].match(/\|(.+)/)[1];
p.style.display = 'block';
}
li[i-1].onclick = function(){
iStar = this.point;
p.style.display = 'none';
span.innerHTML = '<strong>'+this.point+'分'+'</strong>'+'('+evl[this.point-1].match(/\|(.+)/)[1]+')';
}
li[i-1].onmouseout = function(){
fnPoint(); //可以传参数
p.style.display = 'none';
}
}
function fnPoint(iArg){
var score = iArg || iStar;
for(i =1;i <=li.length;i++){
li[i-1].className = score < i?'':'on';
}
}
}