设置cookie的方法，和获取cookie的方法如下

设置cookiedocument.cookie="name="+value;

//获取cookie其中index是cookie的名称    function getCookie(index){    	var allcookies = document.cookie;      	var cookie_pos = allcookies.indexOf(index);    	if (cookie_pos != -1){    		cookie_pos += index.length + 1;    		var cookie_end = allcookies.indexOf(";",cookie_pos);     		if (cookie_end == -1){      				cookie_end = allcookies.length;      		}      		var value = http://www.mamicode.com/unescape(allcookies.substring(cookie_pos, cookie_end)); >