//寫cookies函數
function SetCookie(name,value)//兩個參數，一個是cookie的名子，一個是值
{
??? var Days = 30; //此 cookie 將被保存 30 天
??? var exp? = new Date();??? //new Date("December 31, 9998");
??? exp.setTime(exp.getTime() + Days*24*60*60*1000);
??? document.cookie = name + "="+ escape (value) + ";expires=" + exp.toGMTString() +";path=/100class";//path是cookie的訪問路徑
}
//取cookies函數??
function getCookie(name)??????
{
??? var arr = document.cookie.match(new RegExp("(^| )"+name+"=([^;]*)(;|$)"));
??? if(arr != null)
??? return unescape(arr[2]);
??? else
??? return null;

}
//刪除cookie
function deleteCookie(name)
{
??? var exp = new Date();
??? exp.setTime(exp.getTime() - 1);
??? var cval=getCookie(name);
??? if(cval!=null)
??? document.cookie= name + "="+cval+";expires="+exp.toGMTString();
}