var eersteKlik = true;

function LeftToggle(lcn) {
  var i = 1;
  while (document.getElementById("LeftContent" + i)) {
    if (i != lcn) {
      document.getElementById("LeftContent" + i).style.display="none";
	}
    i++;
  }
  var lci = document.getElementById("LeftContent" + lcn)
  if (lci.style.display == "none" || eersteKlik) { ns = "inline"; } else { ns = "none"; }
  lci.style.display = ns;
  eersteKlik = false;
}

function ContentToggle() {
  var cti = document.getElementById("InitialContent1");
  if (cti) {
    if (cti.style.display == "none") {
  	  acd = "none";
      icd = "inline";
    } else {
      acd = "inline";
	  icd = "none";
    }
    var i = 1;
    while (document.getElementById("InitialContent" + i)) {
      document.getElementById("AdditionalContent" + i).style.display=acd;
      document.getElementById("InitialContent" + i).style.display=icd;
	  i++;
	}
  }
}

function cursusinfo_print() {
  theUrl = location.href;
  if (theUrl.charAt(theUrl.length - 1) == "#") {
    theUrl = theUrl.substring(0,theUrl.length - 1);
  }
  if (theUrl.indexOf("?afdrukken") < 0) {
    theUrl += "?afdrukken=J";
  }
  location.href=theUrl;
}

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_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_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_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}