var menuId = 0;
var oldIE = false;
window.onload = function()
{
  if(navigator.userAgent.indexOf("Opera") < 0)
  {
    theMenu = document.getElementById("menu");
    
    var w=140;if(navigator.userAgent.indexOf("MSIE 6") < 0){lis = theMenu.getElementsByTagName("a");for(i=0;i<lis.length;i++){if(lis[i].className!="tmp"){lis[i].style.width=w+"px";}}}
    
    lis = theMenu.getElementsByTagName("li");
    for(i=0;i<lis.length;i++)
    {
      lis[i].id = "menu" + menuId;
      menuId++;
      lis[i].onmouseover = function()
      {
        show(this);
      }
      lis[i].onmouseout = function()
      {
        hide(this);
      }
    }
  }
  
  h = document.body.offsetHeight - 200;
  if(!noresize)
  {
    if(h<300)
    {
      var que = (document.location.href.indexOf("?") > 0) ? "&" : "?";
      document.location.href = document.location.href + que + "setSize=0";
    }
    else
    {
      document.getElementById("scrollheight").style.height = document.body.offsetHeight - 230 + "px";
    }
  }
}

function show(obj)
{
  items = obj.getElementsByTagName("ul");
  if(items.length > 0)
  {
    items[0].style.display = "block";
  }
}
function hide(obj)
{
  obj.style.backgroundColor = "";
  items = obj.getElementsByTagName("ul");
  if(items.length > 0)
  {
     items[0].style.display = "none";
  }
}

var emailRegExp = /^[A-Z0-9\._\-]+@([A-Z0-9\.\-]+\.)+[A-Z]{2,4}$/i;

function validateNewsletterForm(sender) {

    if ((document.getElementById('userVoornaam').className == 'sampletext') ||
        (document.getElementById('userVoornaam').value == '') ||
        (document.getElementById('userVoornaam').value.length < 2)) {
        alert('Gelieve uw naam in te voeren');
        document.getElementById('userVoornaam').focus();
        return false;
    }

    if ((document.getElementById('userEmail').className == 'sampletext') ||
        (document.getElementById('userEmail').value == '')) {
        alert('Gelieve uw emailadres in te voeren');
        document.getElementById('userEmail').focus();
        return false;
    }
    if ((document.getElementById('userEmail').value.length < 6) ||
        (!emailRegExp.test(document.getElementById('userEmail').value))) {
        alert('Gelieve een geldig emailadres in te voeren');
        document.getElementById('userEmail').focus();
        return false;
    }

		sender.action = '/nieuws/nieuwsbrief?aanmelden';
		sender.method = 'post';
		sender.submit();
		return false;

}