function GetXmlHttpObject(){	var xmlHttp; try{		xmlHttp = new XMLHttpRequest();	}catch (e){		try{			xmlHttp = new ActiveXObject("Msxml2.XMLHTTP");		}catch (e){			try{				xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");			}catch (e){				alert("Your browser does not support AJAX!");				return false;			}		}	}	return xmlHttp;}
function rotate_ads(site_url)
{	
	xmlHttp2 = GetXmlHttpObject();
	
	if (xmlHttp2 == null)
 	{
 		alert ("Browser does not support HTTP Request");
 		return;
 	}
	
	var url2=site_url+"/modules/ads/assets/php/rotating_ads.php"; 
	url2=url2+"?sid="+Math.random();
	
	xmlHttp2.onreadystatechange = function()
	{
		if(xmlHttp2.readyState == 4)
		{
			document.getElementById('rotating_banner_hp').innerHTML = xmlHttp2.responseText;
		}
	}
	xmlHttp2.open("GET",url2,true);
	xmlHttp2.send(null);
	
	setTimeout('rotate_ads("'+site_url+'")',5000);
}