function createRequestObject() { 
 
	var req; 
 
	if(window.XMLHttpRequest){ 
		// Firefox, Safari, Opera... 
		req = new XMLHttpRequest(); 
	} else if(window.ActiveXObject) { 
		// Internet Explorer 5+ 
		req = new ActiveXObject("Microsoft.XMLHTTP"); 
	} else { 
		alert('Deze website vereist dat de browser XMLHttpRequests ondersteunt'); 
	} 
 
	return req; 
 
}