今天写了个滑过星星，点击发送打分的功能。看了下别人的思路，是用<a>标签套<img>标签，然后在<a>标签上写onmouseover事件，不同的星星上要发送不同的参数出去，觉得怪麻烦的。自己写个好了，不用那么麻烦，只要把<img>标签的父元素写个onmouseover事件就可以了，里面的<img>标签可以干干净净的。
//=================== 选星星点评功能 =======================
function rate(obj,oEvent){
//==================
// 图片地址设置
//==================
var imgSrc = 'http://image1.koubei.com/images/store/icon_star_1.gif';
var imgSrc_2 = 'http://image1.koubei.com/images/store/icon_star_2.gif';
//---------------------------------------------------------------------------
if(obj.rateFlag) return;
var e = oEvent || window.event;
var target = e.target || e.srcElement;
var imgArray = obj.getElementsByTagName("img");
for(var i=0;i<imgArray.length;i++){
imgArray[i]._num = i;
imgArray[i].onclick=function(){
if(obj.rateFlag) return;
obj.rateFlag=true;
alert(this._num+1);
};
}
if(target.tagName=="IMG"){
for(var j=0;j<imgArray.length;j++){
if(j<=target._num){
imgArray[j].src=imgSrc_2;
} else {
imgArray[j].src=imgSrc;
}
}
} else {
for(var k=0;k<imgArray.length;k++){
imgArray[k].src=imgSrc;
}
}
}
================= demo =======================
<!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=utf-8" />
<title>无标题文档</title>
<style type="text/css">
.starWrapper{border:1px solid #FFCC00;padding:5px;70px;}
</style>
<script type="text/javascript">
function rate(obj,oEvent){
//==================
// 图片地址设置
//==================
var imgSrc = 'http://image1.koubei.com/images/store/icon_star_1.gif';
var imgSrc_2 = 'http://image1.koubei.com/images/store/icon_star_2.gif';
//---------------------------------------------------------------------------
if(obj.rateFlag) return;
var e = oEvent || window.event;
var target = e.target || e.srcElement;
var imgArray = obj.getElementsByTagName("img");
for(var i=0;i<imgArray.length;i++){
imgArray[i]._num = i;
imgArray[i].onclick=function(){
if(obj.rateFlag) return;
obj.rateFlag=true;
alert(this._num+1);
};
}
if(target.tagName=="IMG"){
for(var j=0;j<imgArray.length;j++){
if(j<=target._num){
imgArray[j].src=imgSrc_2;
} else {
imgArray[j].src=imgSrc;
}
}
} else {
for(var k=0;k<imgArray.length;k++){
imgArray[k].src=imgSrc;
}
}
}
</script>
<body>
<p class="starWrapper" onmouseover="rate(this,event)">
<img src="http://image1.koubei.com/images/store/icon_star_1.gif" title="很烂" /><img src="http://image1.koubei.com/images/store/icon_star_1.gif" title="一般" /><img src="http://image1.koubei.com/images/store/icon_star_1.gif" title="还好" /><img src="http://image1.koubei.com/images/store/icon_star_1.gif" title="较好" /><img src="http://image1.koubei.com/images/store/icon_star_1.gif" title="很好" />
</p>
</body>
</html>