var XMLHttpRequestObject = false; 

 if (window.XMLHttpRequest) {
   XMLHttpRequestObject = new XMLHttpRequest();
 } else if (window.ActiveXObject) {
   XMLHttpRequestObject = new ActiveXObject("Microsoft.XMLHTTP");
 }

 function getData(dataSource, divID) 
 { 
   
    if(XMLHttpRequestObject) {
     var obj = document.getElementById(divID); 
     XMLHttpRequestObject.open("GET", dataSource); 

     XMLHttpRequestObject.onreadystatechange = function() 
     { 
      if (XMLHttpRequestObject.readyState <= 4) {
	 	obj.innerHTML = "<div style='float:left;position: relative; top:10px;left:20px;'><img src='images/wait.gif'></div>"; 
	 }
	 if (XMLHttpRequestObject.readyState == 4 && 
         XMLHttpRequestObject.status == 200) { 
           obj.innerHTML = XMLHttpRequestObject.responseText;
           
       } 
     } 

     XMLHttpRequestObject.send(null); 
   }
 }
 function setData(dataSource, divID) 
 { 
    if(XMLHttpRequestObject) {
     var obj = document.getElementById(divID); 
     XMLHttpRequestObject.open("GET", dataSource); 

     XMLHttpRequestObject.onreadystatechange = function() 
     { 
      if (XMLHttpRequestObject.readyState <= 4) {
	 	//obj.innerHTML = "<div style='float:left;'><img src='images/wait_small.gif'></div>"; 
	 }
	 if (XMLHttpRequestObject.readyState == 4 && 
         XMLHttpRequestObject.status == 200) { 
           obj.innerHTML = XMLHttpRequestObject.responseText;
       } 
     } 

     XMLHttpRequestObject.send(null); 
   }
 }




 function GetXmlHttpObject(handler)
{ 
var objXmlHttp=null;

if (navigator.userAgent.indexOf("MSIE")>=0)
	{ 
	var strName="Msxml2.XMLHTTP";
	if (navigator.appVersion.indexOf("MSIE 5.5")>=0)
	{
		strName="Microsoft.XMLHTTP";
	} 
	try
	{ 
		objXmlHttp=new ActiveXObject(strName);
		objXmlHttp.onreadystatechange=handler;
		return objXmlHttp;
	} 
	catch(e)
	{ 
		alert("Error. Scripting for ActiveX might be disabled");
		return;
	} 
} 
if (navigator.userAgent.indexOf("Mozilla")>=0)
	{
	objXmlHttp=new XMLHttpRequest();
	objXmlHttp.onload=handler;
	objXmlHttp.onerror=handler;
	return objXmlHttp;
	}
} 
function makePOSTRequest(url, parameters,reloadTree) {
	http_request = false;
	 if (window.XMLHttpRequest) { // Mozilla, Safari,...
	    http_request = new XMLHttpRequest();
	    if (http_request.overrideMimeType) {
	    	// set type accordingly to anticipated content type
	       //http_request.overrideMimeType('text/xml');
	       http_request.overrideMimeType('text/html');
	    }
	 } else if (window.ActiveXObject) { // IE
	    try {
	       http_request = new ActiveXObject("Msxml2.XMLHTTP");
	    } catch (e) {
	       try {
	          http_request = new ActiveXObject("Microsoft.XMLHTTP");
	       } catch (e) {}
	    }
	 }
	 if (!http_request) {
	    alert('Cannot create XMLHTTP instance');
	    return false;
	 }
	 
	 eval("http_request.onreadystatechange = function() {alertContents()}");
	 http_request.open('POST', url, true);
	 http_request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
	 http_request.setRequestHeader("Content-length", url.length);
	 http_request.setRequestHeader("Connection", "close");
	 http_request.send(parameters);
	 
}
function alertContents() {
	 if (http_request.readyState <= 4) {
	 	document.getElementById('twitter').innerHTML = "<div style='float:left;position: absolute; top:100px;left:100px;'><img src='images/wait.gif'></div>"; 
	 }
	 if (http_request.readyState == 4) {
	    if (http_request.status == 200) {
	        result = http_request.responseText;
	       	document.getElementById('twitter').innerHTML = result; 
	     } else {
	       alert('There was a problem with the request.');
	    }
	 }
}

function pakTweet(inTaal) {
	makePOSTRequest('twitter.php', '');
}
function stateChanged() 
{ 
	if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
	{
		document.getElementById("twitter").innerHTML=xmlHttp.responseText;
	}
}