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('home_nieuwsfotos').innerHTML = "<div style='float:left;position: absolute; top:100px;left:260px;'><img src='images/wait.gif'></div>"; 
	 }
	 if (http_request.readyState == 4) {
	    if (http_request.status == 200) {
	        result = http_request.responseText;
	       	document.getElementById('home_foto').innerHTML = result; 
	       	sIFR.replace(fresco, {selector: '#carrousel_titel', wmode: 'transparent' ,css: [ '.sIFR-root {color:#FFFFFF;line-height:0.8em; }'] });
       } else {
	       alert('There was a problem with the request.');
	    }
	 }
}
function checkResults()
{ 
	soortenleerkracht=document.formulier.soortenleerkracht.value;
	soortonderwijs=document.formulier.soortonderwijs.value;
	regios=document.formulier.regios.value;
	aantaluren=document.formulier.aantaluren.value;
	trefwoord=document.formulier.trefwoord.value;
	if(trefwoord=='trefwoord'){trefwoord=''}
	var url="aantal_resultaten.asp?soortenleerkracht="  + soortenleerkracht + "&soortonderwijs="  + soortonderwijs + "&regios="  + regios + "&aantaluren="  + aantaluren + "&trefwoord="  + trefwoord ;
	xmlHttp=GetXmlHttpObject(resChanged);
	xmlHttp.open("GET", url , true);
	xmlHttp.send(null);
}
function resChanged() 
{ 
	if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
	{
		document.getElementById("toon_resultaat").innerHTML=xmlHttp.responseText;
	}
} 
var msecs;
var nieuwstimer;

function maakCarrousel(inDir) {
	//even clearen voor als je met de hand doorgeklikt hebt
	if(nieuwstimer){clearTimeout(nieuwstimer)};
	if(!msecs){msecs=8000}
	nieuwstimer=setTimeout("maakCarrousel(1)", msecs)
	var getstr = "";
	var elems = document.formulier.elements;
	laatste="";
	for (var i = 0; i < elems.length; ++i)
	{
		wrd=elems[i].value;	  			
		getstr += elems[i].id + "=" +wrd + "&"; 	
	}
	makePOSTRequest('carrousel.php?dir='  + inDir, encodeURI(getstr));
	
}
function stateChanged() 
{ 
	if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
	{
		document.getElementById("home_foto").innerHTML=xmlHttp.responseText;
	}
}