How do you have multiple adsense units on one website? The only code Google gives are per unit.
To have more then one adsense unit on one page you must add more rows of (adsbygoogle = window.adsbygoogle || []).push({});
.
So if you have 3 ad units, you want to use it 3 times.
(adsbygoogle = window.adsbygoogle || []).push({});
(adsbygoogle = window.adsbygoogle || []).push({});
(adsbygoogle = window.adsbygoogle || []).push({});
If you want to do it dynamically, use this:
[].forEach.call(document.querySelectorAll('.adsbygoogle'), function(){
(adsbygoogle = window.adsbygoogle || []).push({});
});