Tam olarak nedir.

<script type='text/javascript' src='http://partner.googleadservices.com/gampad/google_service.js'>
</script>
<script type='text/javascript'>
GS_googleAddAdSenseService("ca-pub-0894711935682761");
GS_googleEnableAllServices();
</script>
<script type='text/javascript'>
GA_googleAddSlot("ca-pub-0894711935682761", "PopAdNetwork");
GA_googleAddSlot("ca-pub-0894711935682761", "Play_RECT_NoAS_Right");
GA_googleAddSlot("ca-pub-0894711935682761", "Play_Promo_300x100_Right");
GA_googleAddSlot("ca-pub-0894711935682761", "TopLeftPromo_206x90");
GA_googleAddSlot("ca-pub-0894711935682761", "Play_LDB_NoAS_Top");
GA_googleAddSlot("ca-pub-0894711935682761", "GameBox");
GA_googleAddSlot("ca-pub-0894711935682761", "Play_Promo_206x90_Right");
GA_googleAddSlot("ca-pub-0894711935682761", "Play_sky_right");
GA_googleAddSlot("ca-pub-0894711935682761", "Play_Promo_160x300");
GA_googleAddSlot("ca-pub-0894711935682761", "Play_RECT_Prerolls");
</script>
<script type='text/javascript'>
GA_googleAddSlot("ca-pub-0894711935682761", "adcharacter");
</script>
<script type='text/javascript'>
GA_googleFetchAds();
</script>
<script type='text/javascript'>
GA_googleFillSlot("PopAdNetwork");
</script>
<script type='text/javascript'>
var _gaq = _gaq || [];
_gaq.push(['_setAccount', 'UA-144399-1']);
_gaq.push(['_trackPageview']);
_gaq.push(['_trackPageLoadTime']);
(function() {
var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;
ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';
var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);
})();
</script>
<script language="JavaScript">
    GA_googleAddAttr("gamecategory", "action");
</script>

Kodlar bir siteden alıntı arkadaslar. Sistemde adsense kulanılıyor.
Bu sekilde kod ne amacla kullanılır vede ayricalik istermi googlede ?