js 浏览器写coke

/*设置cookie*/

function setCookie(name, value, Days) {

if (Days == null || Days == '') {

Days = 300;

}

var exp = new Date();

exp.setTime(exp.getTime() + Days * 24 * 60 * 60 * 1000);

document.cookie = name + "=" + escape(value) + "; path=/;expires="

+ exp.toGMTString();

}

/* 获取cookie */

function getCookie(name) {

var arr, reg = new RegExp("(^| )" + name + "=([^;]*)(;|$)");

if (arr = document.cookie.match(reg))

return unescape(arr[2]);

else

return null;

}