var zwever = "transcriptie";
var verbergmeerdere = true;
var isLayers = 0;
	var isAll = 0;
	var isGet = 0;
	
	if (document.layers) {isLayers = 1}
	if (document.all) {isAll = 1}
	if (document.getElementById) {isGet = 1}
	
	var docObj;
	var styleObj;
	
	docObj = (isLayers) ? 'document' : 'document.all'; 
	styleObj = (isLayers) ? '' : '.style';



isIE=document.all;
isNN=!document.all&&document.getElementById;
isN4=document.layers;
isHot=false;

function ddInit(e){
  //zwever = "transcriptie"
  topDog=isIE ? "BODY" : "HTML";
  whichDog= document.getElementById(zwever);  
  hotDog=isIE ? event.srcElement : e.target;  
  while (hotDog.id!="tb_"+zwever&&hotDog.tagName!=topDog){
    hotDog=isIE ? hotDog.parentElement : hotDog.parentNode;
  }  
  if (hotDog.id=="tb_"+zwever){
    offsetx=isIE ? event.clientX : e.clientX;
    offsety=isIE ? event.clientY : e.clientY;
    nowX=parseInt(whichDog.style.left);
    nowY=parseInt(whichDog.style.top);
    ddEnabled=true;
    document.onmousemove=dd;
  }
}

function dd(e){
  if (!ddEnabled) return;
  whichDog.style.left=isIE ? nowX+event.clientX-offsetx : nowX+e.clientX-offsetx; 
  whichDog.style.top=isIE ? nowY+event.clientY-offsety : nowY+e.clientY-offsety;
  return false;  
}

document.onmousedown=ddInit;
document.onmouseup=Function("ddEnabled=false");



		
function errorfunction(msg)     {
        return true;
}
// switch off errormessages
//window.onerror=errorfunction;

function toon(currElem){
if ((isLayers && currElem != 0) || (isAll && currElem != 0) || (isGet && currElem != 0)){

	if ((isAll) || (isLayers)) {
		dom = eval(docObj +  '.' + currElem + styleObj);}
	else {
		dom = (document.getElementById(currElem).style);}
	
	state = dom.visibility;
	
	if (state == "visible" || state == "show")
			{dom.visibility = "hidden";}
	else 
			{dom.visibility = "visible";
			zwever=currElem}
	}
	if (verbergmeerdere) hideall(currElem);
}

function hideall(exept){
	if ((isLayers && exept != 0) || (isAll && exept != 0) || (isGet && exept != 0)){

		if (exept != "vraag"){
			if ((isAll) || (isLayers)) {dom = eval(docObj +  '.' + 'vraag' + styleObj);}
			else {dom = (document.getElementById('vraag').style);}
			dom.visibility = "hidden";
		}
		if (exept != "toelichting"){
			if ((isAll) || (isLayers)) {dom = eval(docObj +  '.' + 'toelichting' + styleObj);}
			else {dom = (document.getElementById('toelichting').style);}
			dom.visibility = "hidden";
		}
		if (exept != "transcriptie"){
			if ((isAll) || (isLayers)) {dom = eval(docObj +  '.' + 'transcriptie' + styleObj);}
			else {dom = (document.getElementById('transcriptie').style);}
			dom.visibility = "hidden";
		}
		if (exept != "trefwoorden"){
			if ((isAll) || (isLayers)) {dom = eval(docObj +  '.' + 'trefwoorden' + styleObj);}
			else {dom = (document.getElementById('trefwoorden').style);}
			dom.visibility = "hidden";
		}
		if (exept != "help"){
			if ((isAll) || (isLayers)) {dom = eval(docObj +  '.' + 'help' + styleObj);}
			else {dom = (document.getElementById('help').style);}
			dom.visibility = "hidden";
		}		
	  }
	}

	
	function print(id){
		 printwindow = window.open('print.asp?ID='+id,'printvenster','toolbar=1,location=0,directories=0,status=0,menubar=0,scrollbars=1,resizable=1,width=600,height=400,left=0,top=0,screenX=0,screenY=0,copyhistory=0');
if (printwindow != null) printwindow.focus();
	}	
	
	function memo(titel,bron_id){
	  memowindow = window.open('memo.asp?titel='+titel+'&bron_id='+bron_id,'memovenster','toolbar=1,location=0,directories=0,status=0,menubar=0,scrollbars=1,resizable=1,width=600,height=360,left=0,top=0,screenX=0,screenY=0,copyhistory=0');
if (memowindow != null) memowindow.focus();
	 }

	 function plaatje(welke){
	if (document.all) {afb.src=welke;} else {
		if (document.layers) {document.plaatjespan.document.afb.src=welke;}
		if (document.getElementById) {document.getElementById('afb').src=welke;}
		}
}
function geenplaatje(){
	welke='afbeeldingen/_klein/kaal.gif';
	if (document.all) {afb.src=welke;} else {
		if (document.layers) {document.plaatjespan.document.afb.src=welke;}
		if (document.getElementById) {document.getElementById('afb').src=welke;}
		}
}
function gathema(thema){
	parent.location.href='thema.asp?thema='+thema;
}

function inloggen(){
	if (parent.logindeel) {parent.logindeel.document.form1.submit();}
	else {document.form1.submit();}
}

function melding(){
alert("Naam en/of wachtwoord kloppen niet. Probeer nogmaals of bezoek de site als gast."); 
}

function zet(str){document.write(str)}