// JavaScript Document
function ajaxFunction(url)
  {
  var xmlHttp;
  try
    {
    // Firefox, Opera 8.0+, Safari
    xmlHttp=new XMLHttpRequest();
    }
  catch (e)
    {
    // Internet Explorer
    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;
        }
      }
    }	
xmlHttp.onreadystatechange=stateChanged;
xmlHttp.open("GET",url,true);
xmlHttp.send(null);
	function stateChanged() { 
		if (xmlHttp.readyState==4){
		   document.getElementById('ajax').innerHTML= xmlHttp.responseText;
		   refreshAd();
		}else{
			document.getElementById('ajax').innerHTML= 'Loading...';
		}

	}
	
}