js設置cookie

			//寫cookies
            function setCookie(name, value) {
                var Days = 30;
                var exp = new Date();
                exp.setTime(exp.getTime() + Days * 24 * 60 * 60 * 1000);
                document.cookie = name + "=" + escape(value) + ";expires=" + exp.toGMTString();
            }

            //讀取cookies 
            function getCookie(name) {
                var arr, reg = new RegExp("(^| )" + name + "=([^;]*)(;|$)");

                if (arr = document.cookie.match(reg)) return unescape(arr[2]);
                else return null;
            }

            //刪除cookies 
            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();
            }

使用cookie：

				//將用戶名和密碼寫入cookie
				setCookie("name",name);
				setCookie("pwd",pwd);