random = Math.floor(Math.random()*3);
			switch(random){
				case 1 :
					google_728x90 = '<script type="text/javascript">google_ad_client = "pub-7230423703369335";google_ad_slot = "5637708994";google_ad_width = 728;google_ad_height = 90;</script><script type="text/javascript" src="http://pagead2.googlesyndication.com/pagead/show_ads.js"></script>';
     				document.write(google_728x90);		
     			break
     			case 2 : 
					document.write('<script type="text/javascript">google_ad_client = "pub-7230423703369335";google_ad_slot = "9618421151";google_ad_width = 468;google_ad_height = 60;</script><script type="text/javascript" src="http://pagead2.googlesyndication.com/pagead/show_ads.js"></script>');
				break
				default :
				document.write('<script type="text/javascript">google_ad_client = "pub-7230423703369335";google_ad_slot = "2284185262";google_ad_width = 234;google_ad_height = 60;</script><script type="text/javascript" src="http://pagead2.googlesyndication.com/pagead/show_ads.js"></script>');
			}