[javascript]代码库
<!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>jQuery换皮肤 利用cookie记住皮肤</title>
<style type="text/css">
body, p, ul {
margin:0;
padding:0;
}
ul {
float:right;
height:40px;
margin-top:20px;
margin-right:20px;
}
ul li {
list-style-type:none;
float:left;
width:20px;
height:20px;
margin-left:10px;
cursor:pointer;
}
.skin {
height:40px;
position:fixed;
background:#fff;
border-bottom:solid 1px #cccc;
top:0;
left:0;
width:100%;
}
.red {
background-color: #C00;
}/*红色*/
.black {
background:#000;
}/*黑色*/
.blue {
background:#09F;
}/*蓝色*/
.green {
background-color: #096;
}/*绿色*/
</style>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js" type="text/javascript"></script>
<script type="text/javascript">
$(document).ready(
function() {
// 为了安全 google chrome
// 等浏览器是禁止本地文件写Cookie的
var cookieClass = getCookie('class');// 读取需要缓存的对象。
$("body").attr("class", cookieClass);//
$(".skin_list li").each(
function() {
$(this).click(
function() {
var className = $(this).attr("class");// 保存当前选择的类名
$("body").attr("class", className, 30);// 把选中的类名给body
function SetCookie(name, value, day)// 两个参数,一个是cookie的名子,一个是值
{
var exp = new Date(); // new
// Date("December
// 31, 9998");
exp.setTime(exp.getTime() + day * 24
* 60 * 60 * 1000);
document.cookie = name + "="
+ escape(value) + ";expires="
+ exp.toGMTString();
}
SetCookie("class", className, 30);
})
});
});
function getCookie(name)// 取cookies函数
{
var nameEQ = name + "=";
var ca = document.cookie.split(';');
for ( var i = 0; i < ca.length; i++) {
var c = ca[i];
while (c.charAt(0) == ' ')
c = c.substring(1, c.length);
if (c.indexOf(nameEQ) == 0)
return c.substring(nameEQ.length, c.length);
}
return null;
}
</script>
</head>
<body>
<div class="skin">
<ul class="skin_list">
<li style="width:100px;text-align:right;">更换背景:</li>
</li>
<li class="red"></li>
<li class="black"></li>
<li class="blue"></li>
<li class="green"></li>
</ul>
</div>
</body>
</html>
[代码运行效果截图]