var xmlHttp

function trackClicks(prefix,bannerId,data){
	xmlHttp = GetXmlHttpObject();
	if(xmlHttp == null){
		alert("Browser does not support HTTP Request");
		return;
	}
	var php = "common/ajax/bannerads/clicktracker.php?prefix="+prefix+"&bannerId="+bannerId+"&data="+data;
	xmlHttp.onreadystatechange = stateChanged;
	xmlHttp.open("GET",php,true);
	xmlHttp.send(null);
}

function stateChanged(){ 
	if(xmlHttp.readyState == 4 || xmlHttp.readyState == "complete"){ 
		return
	}
}

function GetXmlHttpObject(){
	var objXMLHttp=null
	if(window.XMLHttpRequest){
		objXMLHttp=new XMLHttpRequest()
	} else if (window.ActiveXObject){
		objXMLHttp=new ActiveXObject("Microsoft.XMLHTTP")
	}
	return objXMLHttp
}