window.onload = pageCount;

function pageCount()
{
  var ajaxRequest;
  try
    {
    // Firefox, Opera 8.0+, Safari
    ajaxRequest=new XMLHttpRequest();
    }
  catch (e)
    {
    // Internet Explorer
    try
      {
      ajaxRequest=new ActiveXObject("Msxml2.XMLHTTP");
      }
    catch (e)
      {
      try
        {
        ajaxRequest=new ActiveXObject("Microsoft.XMLHTTP");
        }
      catch (e)
        {
        alert("Your browser does not support AJAX!");
        return false;
        }
      }
    }

// Create a function that will receive data sent from the server
	ajaxRequest.onreadystatechange = function(){
		if(ajaxRequest.readyState == 4){
			var ajaxDisplay = document.getElementById('ajaxDiv');
			ajaxDisplay.innerHTML = ajaxRequest.responseText;
		}
	}

	// Send this URL
	
	var URL = unescape(location.href)	// get current URL in plain ASCII
	var xstart = URL.lastIndexOf("/") + 1
	var xend = URL.length
	var hereName = URL.substring(xstart,xend)
	var herePath = URL.substring(0,xstart)
	// Not sure necessary as can get IP from PHP end	
  	var queryString = "?referrer=" + document.referrer + "&url="+encodeURIComponent(URL);

//alert(queryString);
	ajaxRequest.open("GET", "http://www.engineeringtalk.com/ajax/pagecounter.php" + queryString, true);
	ajaxRequest.send(null); 	
 }