var currentActiveItem = null;
var nodes = null;
var nav = null;
startList = function() {
	initMenu();
	if (nav){
		if (nodes){
			for (var i=0; i<nodes.length; i++) {
				nodes[i].onmouseover = function() {
					
					for (var i=0; i<nodes.length; i++)
					{
						if (nodes[i].className == 'active')
						{
							currentActiveItem = nodes[i];
							nodes[i].className = '';
						}
						else
						{
							nodes[i].className = "";
						}
					}
					this.className += " hover";
					
				}
				nodes[i].onmouseout = function() {
					this.className = this.className.replace(new RegExp(" hover"), "");
				}
			}
		}
	}
	nav.onmouseout = function()	{
		
		for (var i=0; i<nodes.length; i++)
		{
			nodes[i].className = "";
		}
		currentActiveItem.className = 'active';
		
	}
}

initMenu = function () {
	
	nodes = document.getElementById("top-nav").getElementsByTagName("li");
	nav = document.getElementById("top-nav");
	
}

if (window.addEventListener)
	window.addEventListener("load", startList, false);
else if (window.attachEvent)
	window.attachEvent("onload", startList);

/* laden van meerdere functies */

function addLoadEvent(func)
{	
	var oldonload = window.onload;
	if (typeof window.onload != 'function'){
    	window.onload = func;
	} else {
		window.onload = function(){
		oldonload();
		func();
		}
	}
}

function LinkInNewWindow() {
  var strDomeinNaam;
  strDomeinNaam = ExtractDomainName(document.URL);
  if (!document.getElementsByTagName) return;
  var anchors = document.getElementsByTagName("a");
  for (var i=anchors.length-1; i>=0; i--) {
    var anchor = anchors[i];
    var strUrl;
    strUrl = ExtractDomainName(anchor.href);
    if (strUrl != strDomeinNaam) {
      if ((strUrl != "javascript") && (strUrl != "mailto"))
      {
        anchor.target = "_blank";
      }
    }
  }
}

function ExtractDomainName(s) {
  var i = s.indexOf('//');
  if(i >= 0) { 
    s = s.substr(i+2); 
  }
  i = s.indexOf('/');
  if(i >= 0) { 
    s = s.substr(0,i);
  }
  i = s.indexOf(':');
  
  if(i >= 0) { 
    s = s.substr(0,i); 
  }
  
  var re = /[a-z]/i;
  
  if(! re.test(s)) { 
    return s; 
  }
  
  var a = s.split('.');
  if(a.length < 2) { 
    return s;
  }
  
  var domain = a[a.length-2] + '.' + a[a.length-1];
  if(a.length > 2) {
     if(a[a.length-2].length==2 && a[a.length-1].length==2) {
        domain = a[a.length-3] + '.' + domain;
        }
     }
  return domain.toLowerCase();
}