Js操作cookie

/**存放Cookies: 兩個參數，一個是cookie的名子，一個是值*/
function SetCookie(name,value){
	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();
}
/**取cookies函數 */
function getCookie(name){
	var arr = document.cookie.match(new RegExp("(^| )"+name+"=([^;]*)(;|$)"));
	if(arr != null) return unescape(arr[2]); return null;
}
/**刪除cookie*/
function delCookie(name){
	var exp = new Date();
	exp.setTime(exp.getTime() - 1);
	var cval=getCookie(name);
	if(cval!=null) document.cookie= name + "="+cval+";expires="+exp.toGMTString();
}

這裏有一個讀取php設置的二維數組的cookie

	//可以應對二維數組的cookie
	function getCookie(name) 
	{ 
   		var ret = {};
   		var cookie = document.cookie.split(';');
   		for (var i = 0; i < cookie.length; i++) {
   			var s = cookie[i].split('=');
   			ret[s[0].replace(/(^\s*)|(\s*$)/g, "")] = s[1].replace(/(^\s*)|(\s*$)/g, "");
   		}
   		if (name in ret)
   			return ret[name];
   		return null;
	}