// ***** Configuratie *****

// Uitgaande links naar deze domeinen negeren: ("domein1.nl www.domein2.nl")
var ignore_urls      = ""; 
  
var prefix_clickouts = "/clickouts/";
var prefix_mailto    = "/mailto/";
  
// ***** Configuratie *****

function addEvent(element, type, handler)
{
  if (element.addEventListener)
  {
    element.addEventListener(type, handler, false);
  } else {
    if (!handler.$$guid) handler.$$guid = addEvent.guid++;
    if (!element.events) element.events = {};
    var handlers = element.events[type];
    if (!handlers)
    {
      handlers = element.events[type] = {};
      if (element["on" + type])
      {
        handlers[0] = element["on" + type];
      }
    }
    handlers[handler.$$guid] = handler;
    element["on" + type] = handleEvent;
  }
}
addEvent.guid = 1;

function handleEvent(event)
{
  var returnValue = true;
  event = event || fixEvent(((this.ownerDocument || this.document || this).parentWindow || window).event);
  var handlers = this.events[event.type];
  for (var i in handlers)
  {
    this.$$handleEvent = handlers[i];
    if (this.$$handleEvent(event) === false)
    {
      returnValue = false;
    }
  }
  return returnValue;
}

function fixEvent(event)
{
  event.preventDefault = fixEvent.preventDefault;
  event.stopPropagation = fixEvent.stopPropagation;
  return event;
}

fixEvent.preventDefault = function()
{
  this.returnValue = false;
}

fixEvent.stopPropagation = function()
{
  this.cancelBubble = true;
}

ignore_urls = document.domain + " " + ignore_urls;
ignore_urls = ignore_urls.replace(/^\s+/,'').replace(/\s+$/,''); 
ignore_urls = ignore_urls.split(" ");

function checkLinkToOwnDomains(txt)
{
  for (var i = 0; i <= ignore_urls.length; i++)
  {
    if (txt.indexOf(ignore_urls[i]) > -1) { return false; }
  }
  return true;
}

elm = document.getElementsByTagName("a");
for (var i = 0; i < elm.length; i++)
{
  var path = elm[i].href + "";
  
  // Downloads
  if (path.match(/\.(doc|eps|jpg|png|svg|xls|ppt|pdf|xls|zip|txt|vsd|vxd|js|css|rar|exe|wma|mov|avi|wmv|mp3)/) != null)
  {
    if ((path.indexOf("http://" + location.host) > -1) || (checkLinkToOwnDomains(path) == false))
    {
      addEvent(elm[i], "click", function() { pageTracker._trackPageview(this.href) } );
    }
  }
  
  // Mailto's
  if (path.indexOf("mailto:") > -1)
  {
    addEvent(elm[i], "click", function() { pageTracker._trackPageview(prefix_mailto + (this.href).substr(7)) } );
  }
  
  // Uitgaande links
  if ((checkLinkToOwnDomains(path)) && (path.indexOf("mailto:") == -1) && (path.indexOf("javascript:") == -1))
  { 
    addEvent(elm[i], "click", function() { pageTracker._trackPageview(prefix_clickouts + (this.href).substr(7)) } );
  }
}