js-cookie方法封装

//JS操作cookies方法!//写cookiesfunction setCookie(name,value){    // var time = 1;    var exp = new Date();    // exp.setTime(exp.getTime() + 4*60*60*1000);//4小时失效    exp.setTime(exp.getTime() + 200000);    document.cookie = name + "="+ escape (value) + ";expires=" + exp.toGMTString();}function getCookie(name){    var arr,reg=new RegExp("(^| )"+name+"=([^;]*)(;|$)");    if(arr=document.cookie.match(reg)){        return unescape(arr[2]);    }else{        return null;    }}