addLoadListener(windowLoader);
addLoadListener(initFoldedlist);

var newWin= null;

var unFolded;

function getElementsByAttribute(attribute, attributeValue)
{
  var elementArray = new Array();
  var matchedArray = new Array();

  if (document.all)
  {
    elementArray = document.all;
  }
  else
  {
    elementArray = document.getElementsByTagName("*");
  }

  for (var i = 0; i < elementArray.length; i++)
  {
    if (attribute == "class")
    {
      var pattern = new RegExp("(^| )" + attributeValue + "( |$)");

      if (pattern.test(elementArray[i].className))
      {
        matchedArray[matchedArray.length] = elementArray[i];
      }
    }
    else if (attribute == "for")
    {
      if (elementArray[i].getAttribute("htmlFor") || elementArray[i].getAttribute("for"))
      {
        if (elementArray[i].htmlFor == attributeValue)
        {
          matchedArray[matchedArray.length] = elementArray[i];
        }
      }
    }
    else if (elementArray[i].getAttribute(attribute) == attributeValue)
    {
      matchedArray[matchedArray.length] = elementArray[i];
    }
  }

  return matchedArray;
}


document.onclick = function(e)
{
    var target = e ? e.target : window.event.srcElement;
    while (target && !/^(a|body)$/i.test(target.nodeName))
    {
        target = target.parentNode;
    }
    
    if (target && target.getAttribute('rel') && target.rel == 'external')
    {
        var external = window.open(target.href, 'external', 'width=640, height=480, menubar=yes, scrollbars=yes, resizable=yes');
        return external.closed;
    }
}

function windowLoader()
{
    window.focus();
    if (document.getElementById('windowCloser')) 
    {
        var closer = document.getElementById('windowCloser');
        closer.onclick = closeWindow;  
    }
}

function closeWindow()
{
    window.close();
}


function safemail(name, domain) 
{
  document.write('<a href=mailto:' + name + '@' + domain + '>' + name + '@' + domain + '</a>');
}

function addLoadListener(fn)
{
  if (typeof window.addEventListener != 'undefined')
  {
    window.addEventListener('load', fn, false);
  }
  else if (typeof document.addEventListener != 'undefined')
  {
    document.addEventListener('load', fn, false);
  }
  else if (typeof window.attachEvent != 'undefined')
  {
    window.attachEvent('onload', fn);
  }
  else
  {
    var oldfn = window.onload;
    if (typeof window.onload != 'function')
    {
      window.onload = fn;
    }
    else
    {
      window.onload = function()
      {
        oldfn();
        fn();
      };
    }
  }
}

function attachEventListener(target, eventType, functionRef, capture)
{
  if (typeof target.addEventListener != "undefined")
  {
    target.addEventListener(eventType, functionRef, capture);
  }
  else if (typeof target.attachEvent != "undefined")
  {
    var functionString = eventType + functionRef;
    target["e" + functionString] = functionRef;
    target[functionString] = function(event)
    {
      if(typeof event == "undefined"){event = window.event}; target["e" + functionString](event);
    };
    
    target.attachEvent("on" + eventType, target[functionString]);
  }
  else
  {
    eventType = "on" + eventType;

    if (typeof target[eventType] == "function")
    {
      var oldListener = target[eventType];

      target[eventType] = function()
      {
        oldListener();

        return functionRef();
      }
    }
    else
    {
      target[eventType] = functionRef;
    }
  }

  return true;
}

function detachEventListener(target, eventType, functionRef, capture)
{
  if (typeof target.removeEventListener != "undefined")
  {
    target.removeEventListener(eventType, functionRef, capture)
  }
  else if (typeof target.detachEvent != "undefined")
  {
    var functionString = eventType + functionRef;

    target.detachEvent("on" + eventType, target[functionString]);

    target["e" + functionString] = null;
    target[functionString] = null;
  }
  else
  {
    target["on" + eventType] = null;
  }

  return true;
}

function stopDefaultAction(event)
{
    event.returnValue = false;
    if (typeof event.preventDefault != "undefined")
    {
        event.preventDefault();
    }
}


function initWindowOpeners()
{
    var windowOpeners = getElementsByAttribute("class", "windowOpener");
    for (var i = 0; i < windowOpeners.length; i++)
    {
        attachEventListener(windowOpeners[i], "click", openWindow, false);
    }
    windowOpeners = getElementsByAttribute("class", "windowOpen2");
    for (var i = 0; i < windowOpeners.length; i++)
    {
        attachEventListener(windowOpeners[i], "click", openWindow, false);
    }
}


function initFoldedlist()
{
    if (document.getElementById('foldedlist'))
    {
        var unfolded = document.getElementById("unfoldeddetails");
        
        var newPar = document.createElement('p');
        var howto = document.createTextNode ('Klik op de namen van de ziekten voor meer informatie.');
        newPar.appendChild(howto);
        var parent = unfolded.parentNode;
        parent.insertBefore(newPar,unfolded);
        var foldedList = document.getElementById('foldedlist');
        foldedList.className="js";
        var koppen = foldedList.getElementsByTagName("dt");
        var details = foldedList.getElementsByTagName("dd");
        for (var i = 0; i < koppen.length; i++)
        {
            koppen[i].id="kop"+i;
            details[i].id="details"+i;
            koppen[i].className="unfolder";
            attachEventListener(koppen[i], "click", showDetails, false); 
        }

    }
}

function showDetails()
{
    n=this.id.substring(3);
    
    if(unFolded)
    {
        kopToFold=document.getElementById("kop"+unFolded);
        kopToFold.className="unfolder";
        kopToClose=document.getElementById("kopShown");
        detailsToClose=document.getElementById("detailsShown");
        document.getElementById("unfoldeddetails").removeChild(kopToClose);
        document.getElementById("unfoldeddetails").removeChild(detailsToClose);
    }
    else
    {
        document.getElementById("unfoldeddetails").className="";
    }

    unFolded=n;
    
    this.className="selected";
    detailsId="details"+n;  
    
    details=document.getElementById(detailsId);
    
    detailsToShow = details.cloneNode(true);
    detailsToShow.id="detailsShown";
    
    kopToShow = this.cloneNode(true);
    kopToShow.id="kopShown";

    document.getElementById("unfoldeddetails").appendChild(kopToShow);
    document.getElementById("unfoldeddetails").appendChild(detailsToShow);
}

function RTrim(str){
if(str==null){
  return null;
}
for(var i=str.length-1;str.charAt(i)==" ";i--);
  return str.substring(0,i+1);
}

function formVal() 
{


    var nameError = "vermeldt AUB uw naam.";
    var mailError1 = "Gelieve een geldig E-mail adres te vermelden.";
    var mailError2 = "a.u.b. nogmaals uw E-mail adres om type-fouten te voorkomen.";
    var mailError3 = "Controleer uw E-mail adres:\nde twee adressen zijn verschillend.";
    var textError = "Uw vragen of opmerkingen.";

  if (document.mailform.lastName.value.length < 2) {
    alert(nameError);
    document.mailform.lastName.focus();
    return false;
  }
  
  
 document.mailform.email.value = RTrim(document.mailform.email.value);

  if (!(/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(document.mailform.email.value))){
    alert(mailError1); 
    document.mailform.email.focus();
    return false;
  }
  
  if (document.mailform.email2.value == "") {
    alert(mailError2);
    document.mailform.email2.focus();
    return false;
  }
  
  if (document.mailform.email.value != RTrim(document.mailform.email2.value)) {
    alert(mailError3); 
    document.mailform.email.focus();
    return false;
  }
 
       
  if (document.mailform.text.value.length < 10) {
    alert(textError);
     document.mailform.text.focus();
    return false;
  }
  
return true;
}