var iftrue = 0
hrefValue = window.location.href.toLowerCase(); //获取当前页面的地址
alertUrls = ['gsngd.org', 'gsngd.gov.cn'];

//指定你想要alert的域名，多个可以在数组中直接追加即可
//追加如：['www.bbb.com', 'bbb.com', 'abc.bbb.com']
for(key in alertUrls){
if(String(hrefValue).indexOf(alertUrls[key]) >= 0){
iftrue = 1
break; //直接跳出循环
}
}

if (iftrue === 0) {
console.log("请勿以非法方式使用本公司广告代码！");
} else {



<!--    对联 开始-->
        document.write("<div id='rightDivolKk50bvvXbwPEX7' class='rightDivolKk50bvvXbwPEX7' style='width: 100px; height: 125px; overflow-x: hidden; overflow-y: hidden; position: absolute; right:0px; z-index: 10000; top: 300px;'>");
        document.write("<a target='_blank' href='http://www.gsngd.org/htm/list/78_1.htm'>");
        document.write("<img src='https://ad.lzhongdian.net/../../HdAtt/img/2016/08/20160819104016233.jpg' alt='' style='width: 100px; height: 100px'>");
        document.write("</a>");
            document.write("<div style='width:100px; height:15px;cursor:pointer; text-align:right;' id='pic_close'><a id='CloseolKk50bvvXbwPEX7' style='color:red; text-decoration:none;' title='关闭'>关闭</a></div>");
        document.write("</div>");

       $("#CloseolKk50bvvXbwPEX7").click(function(){
           $("#rightDivolKk50bvvXbwPEX7").fadeOut(500);
       });
       $(function(){
           $(window).scroll(function(){goTopolKk50bvvXbwPEX7();});
           $(window).resize(function(){goTopolKk50bvvXbwPEX7();});
       });
       function goTopolKk50bvvXbwPEX7(){
           $(".rightDivolKk50bvvXbwPEX7").stop().animate({"top":$(window).height()+$(window).scrollTop()-($(window).height()+$(".rightDivolKk50bvvXbwPEX7").height())/2},500);
       }
<!--    对联 结束-->



}

document.write("<link rel='stylesheet' href='https://ad.lzhongdian.net//static/www/css/hdcss.css'>");