javascript网站随机弹出QQ对话窗口

为集团旗下的营销网站加上了一段随机弹QQ窗口，而且对话量还不错啊！现分享给需要的人。希望这一段javascript能对他的营销带来便利！

代码如下：

//取得cookie
function getCookie(name) {
    var nameEQ = name + "=";
    var ca = document.cookie.split(';');
    for (var i = 0; i < ca.length; i++) {
        var c = ca[i];
        while (c.charAt(0) == ' ') {
            c = c.substring(1, c.length);
        }
        if (c.indexOf(nameEQ) == 0) {
            return unescape(c.substring(nameEQ.length, c.length));
        }
    }
    return false;
}
//清除cookie

function clearCookie(name) {

setCookie(name, "", -1);

}
//设置cookie

function setCookie(name, value, seconds) {

seconds = seconds || 0;

var expires = "";

if (seconds != 0) {

var date = new Date();

date.setTime(date.getTime() + (seconds * 1000));

expires = "; expires=" + date.toGMTString();

}

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

}
var qqin = getCookie('qqin');

var qqinok = getCookie('qqinok');

if (!qqin) {

setCookie('qqin', 1, 60);

} else if (!qqinok) {

clearCookie('qqin');

setCookie('qqinok', 1, 300);

window.location.href = "tencent://message/?uin=190707072&Site=中山古镇网站建设&Menu=yes";

}