js cookie操作

直接上代码废话不说:

function addCookie(objName, objValue, objHours) {//添加cookie
    var str = objName + "=" + escape(objValue);
    if (objHours > 0) {//为0时不设定过期时间，浏览器关闭时cookie自动消失
        var date = new Date();
        var ms = objHours * 3600 * 1000 * 24;
        date.setTime(date.getTime() + ms);
        str += "; expires=" + date.toGMTString();
    }
    document.cookie = str;

}

function getCookie(objName) {//获取指定名称的cookie的值
    var arrStr = document.cookie.split("; ");
    for (var i = 0; i < arrStr.length; i++) {
        var temp = arrStr[i].split("=");
        if (temp[0] == objName) return unescape(temp[1]);
    }
}



function delCookie(name, domain)//删除cookie
{
    var exp = new Date();
    exp.setTime(exp.getTime() - 1);
    var str = name + "=";
    str += "; expires=" + exp.toGMTString() + ";domain=" + domain;

    document.cookie = str;
}