XF 1.5 Adsense Javascript

[upnet]

Is it redundant to have this same code in three different ad templates?

I find even though I am calling the same ad unit I still see the same ads on page frequently.

<div id="google-ads-1"></div>

<script type="text/javascript">

/* Calculate the width of available ad space */
ad = document.getElementById('google-ads-1');

if (ad.getBoundingClientRect().width) {
adWidth = ad.getBoundingClientRect().width;
} else {
adWidth = ad.offsetWidth;
}


google_ad_client = "ca-pub-812581712xxxxxxxx";


google_ad_slot = "191731xxxxxxxx";

if ( adWidth >= 728 )
google_ad_size = ["728", "90"];

else
google_ad_size = ["300", "250"];

document.write (
'<ins class="adsbygoogle" style="display:inline-block;width:'
+ google_ad_size[0] + 'px;height:'
+ google_ad_size[1] + 'px" data-ad-client="'
+ google_ad_client + '" data-ad-slot="'
+ google_ad_slot + '"></ins>'
);

(adsbygoogle = window.adsbygoogle || []).push({});
</script>
​