function ajaxLoading(divID) {
	var div = document.getElementById(divID);
	div.innerHTML = "<p><img src='images/loading.gif' width='20' alt='Bezig met laden' /> Inhoud wordt geladen, een ogenblik geduld a.u.b.</p>";
}

function ajax(target, parameters, callback) 
{
	var 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/txt');
	   }
	} 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;
	}
	
	http_request.onreadystatechange = function() { if (http_request.readyState == 4) callback(http_request.responseText); }
	http_request.open('POST', target, true);
	http_request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
	http_request.setRequestHeader("Content-length", parameters.length);
	http_request.setRequestHeader("Connection", "close");
	http_request.send(parameters);
}