can you tell me how to implement scripts and call them in javascript

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ASP.NET

<script type="text/javascript"><!--
google_ad_client = "ca-pub-7211996090536578";
/* google ad */
google_ad_slot = "3785121849";
google_ad_width = 160;
google_ad_height = 600;
//-->
</script>
<script type="text/javascript"
src="http://pagead2.googlesyndication.com/pagead/show_ads.js">
</script>


how to implement this script in javasvript