<!-- algemeen -->
function close_window() {
    window.close();
}
function print_window() {
    window.print();
}

function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function MM_showHideLayers() { //v6.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'block':(v=='hide')?'none':v; }
    obj.display=v; }
}


var prevObj =  null;
var prevLayer =  null;
function showPanel(obj,layer) {
	if (prevLayer != layer) {
		MM_showHideLayers(layer,'','show');
		obj.className = "active";
		if (prevObj !=  null) prevObj.className = "";
		if (prevLayer !=  null) MM_showHideLayers(prevLayer,'','hide');
		prevObj = obj;
		prevLayer = layer;
	}
}


var prevObjSub =  null;
var prevLayerSub =  null;
function showPanelSub(obj,layer) {
	if (prevLayerSub != layer) {
		MM_showHideLayers(layer,'','show');
		obj.className = "active";
		if (prevObjSub !=  null) prevObjSub.className = "";
		if (prevLayerSub !=  null) MM_showHideLayers(prevLayerSub,'','hide');
		prevObjSub = obj;
		prevLayerSub = layer;
	}
}

function MM_goToURL() { //v3.0
  var i, args=MM_goToURL.arguments; document.MM_returnValue = false;
  for (i=0; i<(args.length-1); i+=2) eval(args[i]+".location='"+args[i+1]+"'");
}
function toggleDiv(divid) {
	var divobj = document.getElementById(divid);
	if (divobj.style.display == "none") {
		divobj.style.display = "block";
	}
	else {
		divobj.style.display = "none";
	}
}
function getWindowHeight() {
	var windowHeight = 0;
	if (typeof(window.innerHeight) == 'number') {
		windowHeight = window.innerHeight;
	}
	else {
		if (document.documentElement && document.documentElement.clientHeight) {
			windowHeight = document.documentElement.clientHeight;
		}
		else {
			if (document.body && document.body.clientHeight) {
				windowHeight = document.body.clientHeight;
			}
		}
	}
	return windowHeight;
}
function f_scrollTop() {
	return f_filterResults (
		window.pageYOffset ? window.pageYOffset : 0,
		document.documentElement ? document.documentElement.scrollTop : 0,
		document.body ? document.body.scrollTop : 0
	);
}
function f_filterResults(n_win, n_docel, n_body) {
	var n_result = n_win ? n_win : 0;
	if (n_docel && (!n_result || (n_result > n_docel)))
		n_result = n_docel;
	return n_body && (!n_result || (n_result > n_body)) ? n_body : n_result;
}




function posMailFriend() {
	windowHeight = getWindowHeight();
	scrollpos = f_scrollTop();
	total = (windowHeight/2) - 100 + scrollpos;
	document.getElementById('mailFriend').style.top= total + 'px';
	
}


// toggles an answer div from visible to hidden or hidden to visible
function toggleQAAnswer(answerDivId, questionDivId)
{
	var labelObj = document.getElementById(questionDivId);
	labelObj.className = labelObj.className== "cbq-question" ? "cbq-question-active" : "cbq-question";
	
    var answerDiv = document.getElementById(answerDivId);
    
    if ( answerDiv != null)
    {
        var currentDisp = answerDiv.style.display
        var disp = ( ( currentDisp == "" || currentDisp == "none" ) ? "block" : "none" );
        answerDiv.style.display = disp;        
    }
}
// toggles an answer div from visible to hidden or hidden to visible
function toggleQAAnswerSubvraag(answerDivId, questionDivId)
{
	var labelObj = document.getElementById(questionDivId);
	labelObj.className = labelObj.className== "cbqSubvraag-question" ? "cbqSubvraag-question-active" : "cbqSubvraag-question";
	
    var answerDiv = document.getElementById(answerDivId);
    
    if ( answerDiv != null)
    {
        var currentDisp = answerDiv.style.display
        var disp = ( ( currentDisp == "" || currentDisp == "none" ) ? "block" : "none" );
        answerDiv.style.display = disp;        
    }
}