<script type="text/javascript" src="__PUBLIC__/js/jquery.js"></script>
<script type="text/javascript" src="__PUBLIC__/js/cookie.js"></script>

<link rel="stylesheet" type="text/css" href="__PUBLIC__/css/basic2.css" id="f">

<button>風格一</button><button>風格二</button>

$(document).ready(function(){
$("#button1").click(
function(){
$.cookie('cssfile','basic2.css');//存入cookie
location.reload(); //刷新頁面
}
);
$("#button2").click(
function(){
$.cookie('cssfile','basic.css');
location.reload();
}
);
});
$(document).ready(
function(){
var file=$.cookie('cssfile'); //讀取cookie
if(typeof file=="undefined")
{
var cssfile="__PUBLIC__/css/basic2.css"; //沒有設置，讀取默認css
}
else
{
var cssfile="__PUBLIC__/css/"+file; //設置過的cookie
}
$("#f").attr("href",cssfile);
}
);

<script src="http://ajax.aspnetcdn.com/ajax/jQuery/jquery-1.8.0.js"></script>

<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.0/jquery.min.js"> </script>