function VolumeControle(sName, nAantal) {
 
		var obj = document.getElementById(sName);
		var sText = obj.value;

		if(sText.length > nAantal) {
			alert("Tekst in dit veld is groter dan "+nAantal+" karakters.");
			//obj.value = sText
		}
	}

	function GroepUpdate(obj) {
	
		var request = makeHttpRequest();
		var url = "index.php?p=groep&Id="+obj.name+"&type="+obj.value;

		request.onreadystatechange = function() { 
			if (request.readyState == 4) { 
				if (request.status == 200) { 
					if(request.responseText.length > 0) {
						document.getElementById("N"+obj.name).checked = true;
						alert(request.responseText);
					}

				} else
					alert('There was a problem with the request.(Code: ' + request.status + ')'); 
			} 
		}

		request.open('GET', url, true);
		request.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
		request.send(null);

	}

	function NieuwsbriefUpdate(obj) {
	
		var request = makeHttpRequest();
		var url = "index.php?p=brief&Id="+obj.name+"&type="+obj.value;

		request.onreadystatechange = function() { 
			if (request.readyState == 4) { 
				if (request.status == 200) { 
					if(request.responseText.length > 0) {
						document.getElementById("N"+obj.name).checked = true;
						alert(request.responseText);
					}

				} else
					alert('There was a problem with the request.(Code: ' + request.status + ')'); 
			} 
		}

		request.open('GET', url, true);
		request.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
		request.send(null);
	
	}

	function PreviewZetten(bolPreview) {
	
		if(bolPreview == true) {
			document.formulier.action="index.php?p=preview";
			document.formulier.target='_blank'
		}
		if(bolPreview == false) {
			document.formulier.action="index.php?p=stand";
			document.formulier.target=''
		}

	}

	function PakketUpdate() {
	
		var request = makeHttpRequest();
		var url = "index.php?p=pakket";

		request.onreadystatechange = function() { 
			if (request.readyState == 4) { 
				if (request.status == 200) { 
					if(request.responseText.length > 0) {
		               document.getElementById("pakket").innerHTML = request.responseText;
					}

				} else
					alert('There was a problem with the request.(Code: ' + request.status + ')'); 
			} 
		}

		request.open('GET', url, true);
		request.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
		request.send(null);

	}