淘宝网的弹窗代码，用户体验还不错，弹出机率比较高。
原理需要用户触发才弹出窗口，这样就避免了被拦截。
代码如下，还没测试，先收藏了，以后可能会用到。
(function(){
var _init = function() {
var debug = (location.hostname.indexOf('.taobao.com') == -1);
if (TB.bom.getCookie('_tb_defaultbackpop_') == 1 && !debug)
return;
var nowDate = new Date();
var nowTime =nowDate.getHours()*3600 + nowDate.getMinutes()*60 + nowDate.getSeconds();
var DAY = 24*3600;
var leaveTime = DAY - nowTime;
TB.bom.setCookie('_tb_defaultbackpop_', 1, leaveTime/DAY, document.domain, '/');
var popuped = false;
var popAd = function() {
if (popuped) return;
popuped = true;
var purl='http://www.你的网址.com/';
var w=760;
var h=480;
var adPopup = window.open('about:blank', '_blank','width='+w+',height='+h+', ...');
adPopup.blur();
adPopup.opener.focus();
adPopup.location = purl;
$E.removeListener(document.body, 'click', arguments.callee);
return adPopup;
}
try {
popAd();
} catch (e) {
popuped = false;
$E.on(document.body, 'click', popAd);
}
}
$E.on(window, 'load', _init);
})();
// (function(){})();