Event.onDOMReady( function() {

  /* Replace subtitles */
  $$("#layoutExtra h2").each( function(element) {
    setPNGbackground(element, getTitleURL(element, "groen"));
    Element.setStyle(element, { textIndent: "-2000px" });
  } );
  $$("#layoutContent h2").each( function(element) {
    setPNGbackground(element, getTitleURL(element, "blauw"));
    Element.setStyle(element, { textIndent: "-2000px" });
  } );

} );

/* Get location to dynamic images */
function getTitleURL(element, state) {
  var text = element.childNodes[0].nodeValue;
  state = (state) ? "-" + state : "";
  var url = "/images/titel/"+escape(text)+escape(state)+".png";
  return url;
}

/* Set a PNG as a background images */
function setPNGbackground(element, url) {
  if (pngSupport()) {
    Element.setStyle( element, { backgroundImage: "url('"+url+"')" } );
  }else{
    Element.setStyle( element, { filter: "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='"+url+"', sizingMethod='crop')" } );
  }
}

function pngSupport() {
  /*@cc_on
    @if (@_win32)
      return (@_jscript_version > 5.6);
    @end
  @*/
  return true;
}

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 startOnlineboeken(OB,lng) {
  var w=1050,h=740,scroll='yes';
  var LeftPosition = (screen.width) ? (screen.width-w)/2 : 0;
  var TopPosition = (screen.height) ? (screen.height-h)/2 : 0;
  settings = 'height='+h+',width='+w+',top='+TopPosition+',left='+LeftPosition+',scrollbars='+scroll+',resizable'
  window.open('http://boeken.tibos.nl/nollen/start.lp?lng='+lng+'&value='+OB+'&type=GCB', 'winTIBOSnollen', settings);
}

/*
function startOnlineboeken(OB,lng) {
  if (lng=="nl") {
    alert('Online boeken is in de loop van december weer mogelijk. Tot die tijd kunt u uw boeking via e-mail (info@denollen.nl) aan ons doorgeven.');
  }else{
    alert('Online buchen ist im laufe von Dezember wieder möglich. Bis dann können Sie Ihre Buchungsanfrage per E-Mail (info@denollen.nl) an uns schicken.');
  }
}
*/