<!--AJAX-->
function createRequestObject() {
    var ro = null;
    var browser = navigator.appName;
    if(browser == "Microsoft Internet Explorer"){
        ro = new ActiveXObject("Microsoft.XMLHTTP");
    }else{
        ro = new XMLHttpRequest();
    }
    return ro;
}

var http = createRequestObject();
var trigger;
var division;
var div;
var i2html;

function validate(temp, id)
{
	obj = temp.split("_");
	division = obj[0]

	trigger = obj[1];

	var url;
	
    url = '/ads/ext/target/index.php?id='+id+'&host='+parent.window.location.hostname+'&href='+parent.window.location.href+'&ref='+parent.document.referrer;

    http.open('get', url, false);
    http.onreadystatechange = handleResponse;
    http.send(null);

	div = "ads_div_"+id;

    if(http.status == 200)
    {
        var response = http.responseText;
        i2html = response;
		document.getElementById(div).innerHTML = response;
    }
}

function handleResponse()
{
    if(http.readyState == 4)
    {
        var response = http.responseText;
    }
}
<!--END AJAX-->

function runAds()
{
	var getdivs = document.getElementsByTagName("div");
	for (i = 0; i < getdivs.length; i++) {
		var runad = getdivs[i].id;
		if (runad.substring(0,8) == "ads_div_")
		{
			if (runad.substring(8,10) != 2)
			{
				validate('ads_display', runad.substring(8,10));
			}
		}
	}
}