// Written by André Scholten, 2007
// http://andrescholten.nl/index.php/uitgaande-links-simpel-meten-met-google-analytics/

// Gebruike je het oude (false) of het nieuwe (true) script
var new_ga_script = true;

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 removeEvent(element, type, handler) {
	if (element.removeEventListener) {
		element.removeEventListener(type, handler, false);
	} else {
		if (element.events && element.events[type]) {
			delete element.events[type][handler.$$guid];
		}
	}
};

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;
};

elm = document.getElementsByTagName("a");
for (var i = 0; i < elm.length; i++)
{
  if ((elm[i].href + "").indexOf("http://" + location.host) == -1)
  { 
    if (new_ga_script == true)
    {
      addEvent(elm[i], "click", function() { pageTracker._trackPageview("/outlinks/" + (this.href).substr(7)) } );
    } else {
      addEvent(elm[i], "click", function() { urchinTracker("/outlinks/" + (this.href).substr(7)) } );
    }
  }
}