var XMLHttpRequestObject = false; 

if (window.XMLHttpRequest) {
XMLHttpRequestObject = new XMLHttpRequest();
} else if (window.ActiveXObject) {
XMLHttpRequestObject = new ActiveXObject("Microsoft.XMLHTTP");
}
//
function getData(dataSource){
	if(XMLHttpRequestObject) {
	  var obj1 = document.getElementById("menu");
	  var obj2 = document.getElementById("content");
	  XMLHttpRequestObject.open("GET", dataSource);
	  XMLHttpRequestObject.onreadystatechange = function(){ 
		if (XMLHttpRequestObject.readyState == 4 && XMLHttpRequestObject.status == 200) {
			//split php output
			var menucontent = (XMLHttpRequestObject.responseText).split('--split--');
			//
			obj1.innerHTML = menucontent[0]; // hoofdmenu
			obj2.innerHTML = menucontent[1]; // taal keuze
		} 
	  } 
	  XMLHttpRequestObject.send(null); 
	}
}