html5本地存储localStorage和cookie的灵活运用

//设置cookie的方法
function setCookie(c_name,value,expiredays){
	var exdate=new Date()
	exdate.setDate(exdate.getDate()+expiredays)
	document.cookie=c_name+ "=" +escape(value)+((expiredays==null) ? "" : ";expires="+exdate.toGMTString())
}

//获取cookie的方法
function getCookie(c_name){
	if (document.cookie.length>0){
		c_start=document.cookie.indexOf(c_name + "=")
		if (c_start!=-1){
			c_start=c_start + c_name.length+1
			c_end=document.cookie.indexOf(";",c_start)
			if(c_end==-1) c_end=document.cookie.length
				return unescape(document.cookie.substring(c_start,c_end));
			}
		}
	return "";
}

//设置用户名
if(window.localStorage){
	localStorage.setItem("name","漫画之迷");
}else{
	 setCookie("name","漫画之迷",1);
}

//获取用户名
var name = "";
if(window.localStorage){
	 name=localStorage.getItem("name");
}else{
	 name=getCookie("name");
}