This one is the simple code Copy and paste into your blog and earn money with ad sense
<script type="text/javascript">
google_ad_client = "pub-";
google_ad_width = 336;
google_ad_height = 280;
google_ad_format = "336x280_as";
google_ad_type = "text_image";
google_color_border = "FFFFFF";
google_color_bg = "0000FF";
google_color_link = "FFFFFF";
google_color_text = "000000";
google_color_url = "008000";
</script><script type="text/javascript" src="http://pagead2.googlesyndication.com/pagead/show_ads.js"></script>
