js的cookie设置

function SetCookie (name, value) {

var exp = new Date();

exp.setTime (exp.getTime()+3600000000);

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

}

function getCookieVal (offset) {

var endstr = document.cookie.indexOf (";", offset);

if (endstr == -1) endstr = document.cookie.length;

return unescape(document.cookie.substring(offset, endstr));

}

function DelCookie(name)

{

var exp = new Date();

exp.setTime (exp.getTime() - 1);

var cval = GetCookie (name);

document.cookie = name + "=" + cval + "; expires="+ exp.toGMTString();

}

function GetCookie(name) {

var arg = name + "=";

var alen = arg.length;

var clen = document.cookie.length;

var i = 0;

while (i < clen) {

var j = i + alen;

if (document.cookie.substring(i, j) == arg) return getCookieVal (j);

i = document.cookie.indexOf(" ", i) + 1;

if (i == 0) break;

}

return null;

}

今天要让网站安全点，不登录情况下没有权限访问其他网页。最简单的办法便是设置cookie（达人有其他方法请示下，谢谢）！

php设置cookie很简单，在js里不能嵌入php代码 ，于是到网上找了上面这个库， 经过测试很好用。

SetCookie（name,value) 设置cookie

GetCookie（name） 获得cookie值

DelCookie（name）删除cookie值