// check for layer/resolution and setWidth/SetLayout
// JPU: Be gentle when changing the indenting, this is too complex for me :-/
function setLayout()
{
  if (document.getElementById('menuCoulisseAria') == null)
  {
    // collection
    if (document.getElementById('leftCoulisse') != null)
    {
      if (screen.width > 800)
      {
        document.getElementById('switchlayout').style.width = '650px';
        document.getElementById('switchlayout').style.left = '300px';
      } else
      {
        document.getElementById('switchlayout').style.left = '140px';
        document.getElementById('collectionMenu').style.width = '30px';
        document.getElementById('framework').style.width = '750px';
        document.getElementById('switchlayout').style.width = '610px';
        document.getElementById('leftCoulisse').style.left = '60px';
        if (document.getElementById('rightCoulisse') != null)
          document.getElementById('rightCoulisse').style.left = '750px';
      }
      if (document.getElementById('rightCoulisse') != null)
        document.getElementById('contentDivPad').style.padding = '20px 110px 20px 20px';
    } else
    {
      // collection no visuals
      if (screen.width > 800)
      {
        document.getElementById('switchlayout').style.width = '730px';
        document.getElementById('switchlayout').style.left = '220px';
      } else
      {
        document.getElementById('switchlayout').style.left = '60px';
        document.getElementById('collectionMenu').style.width = '30px';
        document.getElementById('framework').style.width = '750px';
        document.getElementById('switchlayout').style.width = '690px';
        if (document.getElementById('rightCoulisse') != null)
          document.getElementById('rightCoulisse').style.left = '750px';
      }

      if (document.getElementById('rightCoulisse') != null)
        document.getElementById('contentDivPad').style.padding = '20px 110px 20px 20px';
    }
  } else
  {
    // aria
    if (screen.width > 800)
    {
      document.getElementById('switchlayout').style.width = '810px';
      if (document.getElementById('contentDivside') != null)
        document.getElementById('contentDivmain').style.width = '590px';
    } else
    {
      document.getElementById('framework').style.width = '750px';
      document.getElementById('switchlayout').style.width = '610px';
      if (document.getElementById('rightCoulisse') != null)
        document.getElementById('rightCoulisse').style.left = '750px';
      if (document.getElementById('contentDivside') != null)
        document.getElementById('contentDivmain').style.width = '570px';
      if (document.getElementById('contentDivside') != null)
        document.getElementById('contentDivside').style.display = 'none';
      /*document.getElementById('contentDivmain').style.width = '570px';
      if (document.getElementById('contentDivside') != null)
      document.getElementById('contentDivside').style.left = '414px';*/
    }
    document.getElementById('switchlayout').style.left = '140px';
    if (document.getElementById('leftCoulisse'))
    {
      document.getElementById('leftCoulisse').style.left = '60px';
    }
    if (document.getElementById('rightCoulisse') != null)
      document.getElementById('contentDivPad').style.padding = '20px 110px 20px 20px';
  }
}

//set min-height safari
var Browser = function()
{
  this.ie = navigator.appName.toLowerCase().indexOf('microsoft') != -1 ? 1 : 0;
  this.mac = navigator.userAgent.toLowerCase().indexOf('mac') != -1 ? 1 : 0;
  this.win = !this.mac ? 1 : 0;
  this.safari = navigator.userAgent.toLowerCase().indexOf('safari') != -1 ? 1 : 0;
  this.mozilla = navigator.appName.toLowerCase().indexOf('netscape') != -1 && !this.safari ? 1 : 0;
  this.winIE = this.ie && !this.mac ? 1 : 0;
  this.macIE = this.ie && this.mac ? 1 : 0;
  this.safariVersion = function()
  {
    if (!this.safari) return false;
    var ua = navigator.userAgent.toLowerCase();
    var indexNum = ua.indexOf('safari/') + 7;
    var vNum = ua.substring(indexNum, indexNum + 3);
    return parseInt(vNum, 10);
  }
}
var browser = new Browser();
function SetHeight()
{
  if (browser.safari)
  {
    if (document.getElementById('rightCoulisse') == null) {
        // dit niet doen bij een rechtercoulisse, anders gaat de text er onder door in chrome en safari , trac #353
        document.getElementById('contentDivPad').style.display = "table-cell";
    }
    document.getElementById('contentDivPad').style.height = "556px";
  }
}
//window.onload = function() {SetHeight();}



function showArrow()
{
  document.getElementById('png').style.display = 'block';
}
function hideArrow()
{
  document.getElementById('png').style.display = 'none';
}

//read more 
function zie_ook(id)
{
  var e = document.getElementById(id).style
  e.display = (e.display == "block") ? "none" : "block"
  window.scrollTo(0, 100000);
}

//droplist
function startList()
{
  if (document.all && document.getElementById)
  {
    navRoot = document.getElementById("droplist");
    for (i = 0; i < navRoot.childNodes.length; i++)
    {
      node = navRoot.childNodes[i];
      if (node.nodeName == "LI")
      {
        node.onmouseover = function()
        {
          this.className += " over";
        }
        node.onmouseout = function()
        {
          var out = true;
          if (window.event)
          {
            var element = window.event.toElement;
            while (element)
            {
              out &= element != this;
              element = element.parentNode;
            }
          }
          if (out)
          {
            this.className = document.getElementById('sublevel').className.replace(" over", " ");
          }
        }
      }
    }
  }
}

// center popup script  
var win = null;
function newWindow(mypage, myname, w, h, scroll, resize)
{
  LeftPosition = (screen.width) ? (screen.width - w) / 2 : 0;
  TopPosition = (screen.height) ? (screen.height - h) / 2 : 0;
  settings = 'height=' + h + ',width=' + w + ',top=' + TopPosition + ',left=' + LeftPosition + ',scrollbars=' + scroll + ',resizable=' + resize + ''
  win = window.open(mypage, myname, settings)
  return false;
}

// newwindow links
/** This one should be removed when all links are replaced by onclick links */
$(document).ready(function() {
  $('div.specialbutton a.newWindow-rijksmuseumFormats').click(function() {
    newWindow($(this).attr('href'),'rijksmuseumFormats',800,600,false,false);
    return false;
  });
//javascript:newWindow('/formats/container_en.html','rijksmuseumFormats',800,600,false,false)
/*
  $('a.newWindow').click(function(e) {
    newWindow(this.attr('href'),'rijksmuseumFormats',800,600,false,false);
    e.preventDefault();
  });*/
});

// searchform
$(document).ready(function() {
  $('#searchinput').click(function() {
    $(this).val('');
  });
});


//swap images
function createMouseOvers()
{
  var p = 0, d = document.images;
  prelImgs = new Array();
  for (var i = 0; i < d.length; i++)
  {
    var o = d[i];
    if (o.src.indexOf('_out') != -1)
    {
      o.onmouseover = function() { swapImage(this); }
      o.onmouseout = o.onmouseover;
      prelImgs[p] = new Image();
      prelImgs[p].src = d[i].src.substring(0, o.src.length - 8) + '_over.gif';
      p++;
    }
  }
}

function swapImage(o)
{
  var s = o.src;
  o.src = s.indexOf('_over') == -1 ?
  s.substring(0, s.length - 8) + '_over.gif' :
  s.substring(0, s.length - 9) + '_out.gif';
}


if (window.HTMLElement)
{
  HTMLElement.prototype.contains = function(el)
  {
    var tempEl = el;
    while (tempEl != null)
    {
      if (tempEl == this) return true;
      tempEl = tempEl.parentNode;
    }
    return false;
  };
}

function isInside(parentEl, evt)
{
  if (window.HTMLElement)
  {
    // mozilla and alike
    return parentEl.contains(evt.relatedTarget);
  } else
  {
    return parentEl.contains(evt.toElement);
  }
}

var popupHandle;
function popup(pagina)
{
  window.name = "eerstevenster";
  var width = 800;
  var height = 600;
  //
  // fullscreen if screenX=800
  if (navigator.appName == "Microsoft Internet Explorer")
  {
    screenX = window.screen.availWidth;
  } else
  {
    screenX = window.outerWidth
  }
  if (screenX == 800)
  {
    var properties = "width=800,height=600,toolbar=no,status=no,resizable=no,scrollbars=no,fullscreen=yes";
  } else
  {
    var properties = "width=800,height=600,toolbar=no,status=no,resizable=no,scrollbars=no";
  }
  var leftprop, topprop, screenX, screenY, cursorX, cursorY, padAmt;
  if (navigator.appName == "Microsoft Internet Explorer")
  {
    screenY = document.body.offsetHeight;
    screenX = window.screen.availWidth;
  } else
  {
    screenY = window.outerHeight
    screenX = window.outerWidth
  }
  leftvar = Math.round((screenX - width) / 2);
  rightvar = Math.round((screenY - height) / 2);
  if (navigator.appName == "Microsoft Internet Explorer")
  {
    leftprop = leftvar;
    topprop = rightvar;
  } else
  {
    leftprop = (leftvar - pageXOffset);
    topprop = (rightvar - pageYOffset);
  }
  properties = properties + ",left=" + leftprop;
  properties = properties + ",top=" + topprop;
  popupHandle = open(pagina, "carteOrange", properties);
  setTimeout('popupHandle.focus();', 250);

}



// mdi, nov 2005
function getEl(el)
{
  return document.getElementById(el);
}

// thanx Laurens (laurens@vd.oever.nl)
Function.prototype.closure = function(obj)
{
  if (!window.__objs)
  {
    window.__objs = [];
    window.__funs = [];
  }
  var fun = this;
  var objId = obj.__objId;
  if (!objId)
    __objs[objId = obj.__objId = __objs.length] = obj;
  var funId = fun.__funId;
  if (!funId)
    __funs[funId = fun.__funId = __funs.length] = fun;
  if (!obj.__closures)
    obj.__closures = [];
  var closure = obj.__closures[funId];
  if (closure)
    return closure;
  obj = null;
  fun = null;
  return __objs[objId].__closures[funId] = function()
  {
    return __funs[funId].apply(__objs[objId], arguments);
  };
};

function addEvent(obj, evType, fn, useCapture)
{
  if (obj.addEventListener)
  {
    obj.addEventListener(evType, fn, useCapture);
    return true;
  }
  else if (obj.attachEvent)
  {
    var r = obj.attachEvent("on" + evType, function() { fn.apply(obj); });
    return r;
  }
  else
  {
    alert("Handler could not be attached");
  }
}

function eventOnPartOfElement(e, element, to)
{
  var t;
  if (window.event)
  {
    t = to ? window.event.toElement : window.event.srcElement;
  }
  else if (e)
  {
    t = to ? e.relatedTarget : e.target;
  }
  else
  {
    return false;
  }
  if (t == null)
  {
    return false;
  }
  while (t.tagName != 'BODY')
  {
    if (t == element)
    {
      return true;
    }
    t = t.parentNode;
  }
  return false;
}

// init flash headers
var hGCalHeight = 12;
var hGCalId = '';
var prefix = '/';
//var prefix = '';
hGPath = prefix + '_swf/hg.swf';
addSwfHeader({ swfFont: prefix + '_swf/documenta_bold_rijks.swf', tagName: 'h1', parentId: 'info', size: 22, color: '585B4B', paddingBottom: 1 });
addSwfHeader({ swfFont: prefix + '_swf/documenta_bold_rijks.swf', tagName: 'h1', parentId: 'bodyAria', size: 22, color: 'B6BDB7', paddingBottom: 1 });
addSwfHeader({ swfFont: prefix + '_swf/documenta_bold_rijks.swf', tagName: 'h1', parentId: 'nieuws', size: 22, color: '35585C', paddingBottom: 1 });
addSwfHeader({ swfFont: prefix + '_swf/documenta_bold_rijks.swf', tagName: 'h1', parentId: 'tentoonstelling', size: 22, color: '35585C', paddingBottom: 1 });
addSwfHeader({ swfFont: prefix + '_swf/documenta_bold_rijks.swf', tagName: 'h1', parentId: 'webshop', size: 22, color: '39575F', paddingBottom: 1 });
addSwfHeader({ swfFont: prefix + '_swf/documenta_bold_rijks.swf', tagName: 'h1', parentId: 'WhiteContent', size: 22, color: '39575F', paddingBottom: 1 });
addSwfHeader({ swfFont: prefix + '_swf/documenta_bold_rijks.swf', tagName: 'h1', parentId: 'vrienden', size: 22, color: '475F3B', paddingBottom: 1 });
addSwfHeader({ swfFont: prefix + '_swf/documenta_bold_rijks.swf', tagName: 'h1', parentId: 'geschiedenis', size: 22, color: '212930', paddingBottom: 1 });
addSwfHeader({ swfFont: prefix + '_swf/documenta_bold_rijks.swf', tagName: 'h1', parentId: 'verbouwingsspecial', size: 22, color: '39575F', paddingBottom: 1 });
addSwfHeader({ swfFont: prefix + '_swf/documenta_bold_rijks.swf', tagName: 'h1', parentId: 'contentDiv', size: 22, color: '5C5538', paddingBottom: 1 });
addSwfHeader({ swfFont: prefix + '_swf/documenta_bold_rijks.swf', tagName: 'h2', parentId: 'webshopCategories', size: 16, color: '39575F', paddingBottom: 1 });
addSwfHeader({ swfFont: prefix + '_swf/documenta_bold_rijks_sidecaps.swf', tagName: 'h2', parentId: 'homeCoulisse', rotate: 270, size: 13, paddingTop: 5, paddingLeft: 245, paddingBottom: 5, color: 'FFFFFF', upperCase: true, bGColor: '030303', bGColorAlpha: 20 });
addSwfHeader({ swfFont: prefix + '_swf/documenta_bold_rijks_sidecaps.swf', tagName: 'h3', parentId: 'rightCoulisse', rotate: 90, size: 13, paddingTop: 4, paddingLeft: 50, paddingRight: 20, paddingBottom: 5, color: 'FFFFFF', upperCase: true, bGColor: '030303', bGColorAlpha: 20 });
addSwfHeader({ swfFont: prefix + '_swf/documenta_bold_rijks.swf', tagName: 'h3', parentId: 'subhomeCoulisse', size: 32, color: 'FFFFFF', paddingBottom: 1 });
hGStart();
addEvent(window, 'load', windowLoader);
function windowLoader()
{
  hGLoader();
  addEvent(document.body, 'click', coulisseCloseAll);
}


// 17 november 2005 Added by Mark D. en Matthijs Kl.
function showContentFlash()
{
  return;
  var list = document.getElementsByTagName('object');
  for (var i = 0; i < list.length; i++)
  {
    var o = list[i];
    if (o.parentNode.className == 'flashWrapper')
    {
      o.parentNode.style.display = 'block';
      o.style.width = '100px';
      o.style.display = 'block !important';
      o.style.height = '50px';
    }
  }
}

function openFile(file)
{
  location.href = (file);
}


// set scrolltop, mdi
function setScrollTop(y)
{
  //can't get proper discriminating object detection for safari
  if (/WebKit/i.test(navigator.userAgent))
  {
    document.body.scrollTop = y;
  }
  else if (document.documentElement &&
    typeof document.documentElement.scrollTop != "undefined")
  {
    document.documentElement.scrollTop = y;
  }
};


// flashObject 1.3, Mark Dibbets, Fabrique, update mei 2006

// getElement.. wrapper 
function getEl(el)
{
  return document.getElementById(el);
};

// setClassName
function setClassName(el, className)
{
  if (!className)
  {
    return;
  }
  if (el.getAttribute('className') != null)
  {
    el.setAttribute('class', className);
  }
  else
  {
    el.setAttribute('class', className);
  }
};

// removeClassName
function removeClassName(el, className) {
  var oldClassNames = el.className.split(' ');
  var newClassNames = '';
  for(var i = 0, len = oldClassNames.length; i < len; i++) {
    if(oldClassNames[i] !== className) {
	  newClassNames += oldClassNames[i] + ' ';
	}
  }
  el.className = newClassNames;
  return el;
}

// add stylesheet
var styleSheetFromScript = false;
function addStyle(selector, properties)
{
  if (document.styleSheets)
  {
    if (!styleSheetFromScript)
    {
      styleSheetFromScript = document.createElement('style');
      styleSheetFromScript.setAttribute('type', 'text/css');
      document.getElementsByTagName('HEAD')[0].appendChild(styleSheetFromScript);
    }
    var lastSheet = document.styleSheets[document.styleSheets.length - 1];
    if (lastSheet && typeof lastSheet.addRule == 'object')
    {
      lastSheet.addRule(selector, properties);
    }
    else
    {
      styleSheetFromScript.appendChild(document.createTextNode(selector + ' { ' + properties + ' }'));
    }
  }
};

// check if the proper version is installed
function hasMinFlashVersion(versionNumber)
{
  if (window.ActiveXObject)
  {
    try
    {
      var flash = new ActiveXObject("ShockwaveFlash.ShockwaveFlash." + versionNumber);
      return 1;
    }
    catch (e)
    {
      return 0;
    }
  }
  else
  {
    if (navigator.plugins.length)
    {
      for (var i = 0; i < navigator.plugins.length; i++)
      {
        var pluginIdent = navigator.plugins[i].description.split(" ");
        if (pluginIdent[0] == "Shockwave" && pluginIdent[1] == "Flash")
        {
          var versionArray = pluginIdent[2].split(".");
          return versionArray[0] >= versionNumber;
        }
      }
    }
  }
  return 0;
};

// Class FlashObject
flashObjects = [];
function FlashObject(oArg)
{

  this.id = oArg.id;
  this.parentId = oArg.parentId;
  this.uri = oArg.uri;
  this.width = oArg.width;
  this.height = oArg.height;
  this.hasRequiredVersion = hasMinFlashVersion(oArg.requiredVersion);
  this.className = oArg.className ? oArg.className : '';
  this.params = oArg.params;
  this.noFocus = oArg.noFocus;
  if (this.hasRequiredVersion)
  {
    addStyle('#' + oArg.parentId + ' .alternateContent', 'display:none !important;');
  }

  // create the object
  this.create = function()
  {
    if ((!this.hasRequiredVersion) || (!getEl(this.parentId)))
    {
      return;
    }
    var obj = document.createElement('object');
    obj.type = 'application/x-shockwave-flash';
    
    if (this.id)
    {
      obj.setAttribute('id', this.id);
    }
    obj.setAttribute('data', this.uri);
    obj.setAttribute('src', this.uri);
    obj.setAttribute('width', this.width);
    obj.setAttribute('height', this.height);
    if (this.noFocus)
    {
      obj.setAttribute('tabIndex', -1);
    }
    setClassName(obj, this.className);
    for (var i in this.params)
    {
      var param = this.params[i];
      var paramEl = document.createElement('param');
      paramEl.setAttribute('name', i);
      paramEl.setAttribute('value', this.params[i]);
      obj.appendChild(paramEl);
      obj[i] = this.params[i];
    }
    getEl(this.parentId).appendChild(obj);
    if (typeof obj.loadMovie == 'undefined'){
      return;
    }
    try {
      obj.loadMovie(0,this.uri);
    }
    catch (e)
    {
    }
  }

};

// make a flash object
function createFlashObject(oArg)
{
  flashObjects[flashObjects.length] = new FlashObject(oArg);
};

// create all the flash objects (onload)
function createFlashObjects()
{
  for (var i in flashObjects)
  {
    flashObjects[i].create();
  }
};

addEvent(window, 'load', createFlashObjects);

/*
* static Class DipBox
* v1.2, mdi, 15 oct 2007
* sort of scalable Lightbox for specials and '.swf links' 
*/

var DipBox = {

  /*
  * Class variables
  */

  requiredFlashVersion: 7,
  marginTop: 20,
  marginRight: 85,
  marginBottom: 20,
  marginLeft: 85,
  textNodes: {
    en: {
      buttonOpen: 'Enlarge this special',
      buttonClose: 'Restore this special'
    },
    nl: {
      buttonOpen: 'Vergroot deze special',
      buttonClose: 'Verklein deze special'
    }
  },
  originalParentNode: null,

  /*
  * functions
  */

  //setup
  setup: function()
  {
    DipBox.setupFSLink();
    DipBox.setupFlashURLs();
    addEvent(window, 'resize', DipBox.setFullScreenFlashSize);
  },

  //setup the link
  setupFSLink: function()
  {
    if ((!DipBox.flashId) || (!getEl('contentDivhead')))
    {
      return;
    }
    var button = document.createElement('div');
    var lang = document.getElementsByTagName('html')[0].getAttribute('lang');
    button.appendChild(document.createTextNode(DipBox.textNodes[lang].buttonOpen));
    button.setAttribute('id', 'dipbox-button-open');
    button.setAttribute('flashId', DipBox.flashId);
    getEl(DipBox.flashId + '_container').appendChild(button);
    addEvent(button, 'click',
      function()
      {
        DipBox.createFSFromObject(getEl(this.getAttribute('flashId')));
      }
    )
  },

  //setup links with 'swf' in it to show Fullsceen in DipBox
  setupFlashURLs: function()
  {
    var list = document.getElementsByTagName('a');
    for (var i = 0; i < list.length; i++)
    {
      var url = list[i].getAttribute('href');
      if (!url || url.indexOf('.swf') == -1)
      {
        continue;
      }
      list[i].setAttribute('url', url);
      list[i].setAttribute('href', 'javascript:void(0)');
      addEvent(list[i], 'click',
        function()
        {
          DipBox.createFSFromURL(this.getAttribute('url'));
        }
      );
    }
  },

  //set flash id from special
  setFlashId: function(id)
  {
    DipBox.flashId = id;
    addStyle('h1', 'margin-right:160px !important;'); //hackery
  },

  // create the FS container with DOM functions
  setupFSContainer: function()
  {

    if (getEl('dipbox'))
    {
      return;
    }

    var elContainer = document.createElement('div');
    elContainer.setAttribute('id', 'dipbox');

    var buttonClose = document.createElement('div');
    buttonClose.setAttribute('id', 'dipbox-button-close');
    var lang = document.getElementsByTagName('html')[0].getAttribute('lang');
    buttonClose.appendChild(document.createTextNode(DipBox.textNodes[lang].buttonClose));
    addEvent(buttonClose, 'click', DipBox.closeFullScreen);

    var elInner = document.createElement('div');
    elInner.setAttribute('id', 'dipbox-inner');

    var elBG = document.createElement('div');
    elBG.setAttribute('id', 'dipbox-bg');

    elContainer.appendChild(buttonClose);
    elContainer.appendChild(elInner);
    elContainer.appendChild(elBG);
    document.body.appendChild(elContainer);

  },

  //create from url
  createFSFromURL: function(url)
  {
    DipBox.setupFSContainer();
    DipBox.originalParentNode = null;
    var fO = new FlashObject({
      parentId: 'dipbox-inner',
      uri: url,
      className: 'flash-object',
      requiredVersion: DipBox.requiredFlashVersion
    });
    fO.create();
    DipBox.showFullScreen();
  },

  //create from object (DOM element)
  createFSFromObject: function(obj)
  {
    DipBox.setupFSContainer();
    DipBox.originalParentNode = obj.parentNode;
    getEl('dipbox-inner').appendChild(obj);
    DipBox.showFullScreen();
  },

  //show full screen (shared function from url and object)
  showFullScreen: function(oArg)
  {
    setScrollTop(0);
    document.getElementsByTagName('html')[0].style.overflow = 'hidden';
    getEl('dipbox').style.display = 'block';
	document.body.className += ' dipbox-opened';
    DipBox.setFullScreenFlashSize();
  },

  //close the damn thing
  closeFullScreen: function()
  {
    var elObj = getEl('dipbox-inner').getElementsByTagName('object')[0];
    if (DipBox.originalParentNode)
    {
      DipBox.originalParentNode.appendChild(elObj);
      elObj.style.height = '';
      elObj.style.width = '';
    }
    else
    {
      elObj.parentNode.removeChild(elObj);
    }
    getEl('dipbox').style.display = 'none';
    document.getElementsByTagName('html')[0].style.overflow = 'auto';
	removeClassName(document.body, 'dipbox-opened');
  },

  //set flash size with script: some browsers have problems with style only
  setFullScreenFlashSize: function()
  {
    var elParent = getEl('dipbox-inner');
    if (!elParent)
    {
      return;
    }
    elObj = elParent.getElementsByTagName('object')[0];
    if (!elObj)
    {
      return;
    }
    elObj.style.width = elParent.offsetWidth - (DipBox.marginLeft + DipBox.marginRight) + 'px';
    elObj.style.height = elParent.offsetHeight - (DipBox.marginTop + DipBox.marginBottom) + 'px';
    elObj.style.left = DipBox.marginLeft + 'px';
    elObj.style.top = DipBox.marginTop + 'px';
  }

};

//initialize
addEvent(window, 'load', function() { setTimeout('DipBox.setup()', 10) });


//readspeaker URL
function getReadspeakerURI(lang)
{
  var loc = location.href;
  var localDomain = 'http://' + loc.split('/')[2];
  loc = loc.replace(localDomain, 'http://www.rijksmuseum.nl');
  if (loc.indexOf('?') == -1)
  { //browsertaalafhankelijke toevoeging
    loc = loc + '%253Flang=' + lang;
    return loc;
  }
  var loc = loc.replace('?', '%253F').replace(/&/g, '%2526');
  return loc;
}



//toggle
var originalHeight = 0;
function showhide(el, buttonel) 
{
	el = $(el); buttonel = $(buttonel);
	var newButtonClass;
	
	if (el.height() > 270)
	{
		// set height so we can animate back
		if (originalHeight == 0)
		{
			originalHeight = el.height();
			buttonel.parent().css('display','block');
			el.css('height','270px');
		}
		else
			el.animate({ height:'270px' }, null, 'swing');
		buttonel.text("meer");
		newButtonClass = "foldoutbutton show";
	}
	else if (originalHeight > 0)
	{
		el.animate({ height:originalHeight }, null, 'swing');
		buttonel.text("minder");
		newButtonClass = "foldoutbutton hide";
	}
	// timeout is nodig voor IE, anders wordt de knop helemaal niet getoond
	setTimeout(function() { buttonel.parent().attr('class', newButtonClass); }, 100);
}
$().ready(function() {
	var btns = $('.foldoutbutton a'); 
	btns.click(function() {
		showhide(document.getElementById('objectfold'), this);
	});
	$.each(btns, function() { showhide(document.getElementById('objectfold'), this); });
});



function handleForms(evt){
	var el = $(evt.target||evt.srcElement); //srcElement voor ie7
	var inputs = $(el.find("input,select"));
	var error = false;
	var errorText = "";
	
	inputs.each(function(key, value) {
		var input = $(inputs[key]);
		if (input.attr("required") && (input.val() == "" || (input.attr("type") == "checkbox" && !input.attr("checked"))))
		{
			var label = $(input.parents("tr").find("td.label"));
			errorText += "\"" + label.attr("title") + "\" is een verplicht veld\n";
			error = true;
		}
	});
	
	if (error)
	{
		alert(errorText);
		return false;
	}
	else
	{
		return true;
	};
}