我的广告单元，有空点一下哦，谢谢！

function SetCookie(name,value){    var Days = 30; //此 cookie 将被保存 30 天    var exp = new Date();    exp.setTime(exp.getTime() + Days*24*60*60*1000);    document.cookie = name + "="+ escape (value) + ";expires=" + exp.toGMTString();}function getCookie(name) {    var arr = document.cookie.match(new RegExp("(^| )"+name+"=([^;]*)(;|$)"));     if(arr != null) return unescape(arr[2]); return "ext-all.css";}function delCookie(name){        var exp = new Date();         exp.setTime(exp.getTime() - 1);        var cval=getCookie(name);        if(cval!=null) document.cookie= name + "="+cval+";expires="+exp.toGMTString();    }