/*  Prototype JavaScript framework, version 1.4.0
 *  (c) 2005 Sam Stephenson <sam@conio.net>
 *
 *  Prototype is freely distributable under the terms of an MIT-style license.
 *  For details, see the Prototype web site: http://prototype.conio.net/
 *
/*--------------------------------------------------------------------------*/

//note: stripped down version of prototype, to be used with clicktracker.iwink.nl

if (!window.ctEvent) {
  var ctEvent = new Object();
}

ctEvent.pointerX = function(event) {
    return event.pageX || (event.clientX +
      (document.documentElement.scrollLeft || document.body.scrollLeft));
  };

ctEvent.pointerY = function(event) {
    return event.pageY || (event.clientY +
      (document.documentElement.scrollTop || document.body.scrollTop));
  };

ctEvent.observers = false;

ctEvent._observeAndCache= function(element, name, observer, useCapture) {
    if (!this.observers) this.observers = [];
    if (element.addEventListener) {
      this.observers.push([element, name, observer, useCapture]);
      element.addEventListener(name, observer, useCapture);
    } else if (element.attachEvent) {
      this.observers.push([element, name, observer, useCapture]);
      element.attachEvent('on' + name, observer);
    }
  };

ctEvent.observe = function(element, name, observer, useCapture) {
    useCapture = useCapture || false;

    if (name == 'keypress' &&
        (navigator.appVersion.match(/Konqueror|Safari|KHTML/)
        || element.attachEvent))
      name = 'keydown';

    ctEvent._observeAndCache(element, name, observer, useCapture);
  };



/**
Clicktracker specifieke code
*/

function getClicktrackerURL(pagename)
{
	var a = encodeURIComponent(document.location);
	var b = encodeURIComponent(document.title);
	var c = encodeURIComponent(navigator.userAgent);
	var d = encodeURIComponent(navigator.platform);
	var e = encodeURIComponent(navigator.cookieEnabled);
	var f = encodeURIComponent(navigator.cpuClass);
	var g = encodeURIComponent(navigator.browserLanguage);
	var h = encodeURIComponent(document.images.length);
	//var i = encodeURIComponent(document.cookie);
	var i = "";
	var j = encodeURIComponent(document.referrer);
	var k = encodeURIComponent(screen.width+'x'+screen.height+'x'+screen.colorDepth);
	var l = encodeURIComponent(pagename);
	var m = navigator.appName.indexOf("Microsoft")!=-1?encodeURIComponent(document.body.offsetWidth+'x'+document.body.offsetHeight):encodeURIComponent(window.innerWidth+'x'+window.innerHeight);
	var n = "GET";
//	var n = encodeURIComponent(request.method.toUpperCase());
	var uri = '/clicktrackerproxy.php?path=' + encodeURIComponent('in.php?a='+a+'&b='+b+'&c='+c+'&d='+d+'&e='+e+'&f='+f+'&g='+g+'&h='+h+'&i='+i+'&j='+j+'&k='+k+'&l='+l+'&m='+m+'&n='+n);
	return uri;
}

function getChildnodesByTagName(parent,tagname) {
	var ret = new Array();
	for(var i=0; i<parent.childNodes.length;i++) {
		try {
			if (parent.childNodes[i].nodeName == tagname)
				ret.push(parent.childNodes[i]);
		} catch(err) {
			// dont show the browser the exception
		}
	}
	return ret;
}

function findDomPath(obj) {
	var nm = obj.nodeName;
	var par = obj.parentNode;
	if (nm == 'BODY' || nm == 'HTML') return '/';
	var children = getChildnodesByTagName(par,nm);
	for(var i=0;i<children.length;i++) {
		if(children[i]==obj) {
			if (res = findDomPath(par)) {
				return res + '/' + nm + '[' + (i+1) + ']';
			}
		}
	}
	return '';
}

ctEvent.observe(
	document,
	'mousedown',
	function(evt) {

		var clickcoords = [ctEvent.pointerX(evt), ctEvent.pointerY(evt)];

		var evtTarget = evt.originalTarget || evt.srcElement;
		if (evtTarget == document) return;
		var dompath = '';
		dompath = findDomPath(evtTarget).replace('\/\/' ,'/HTML/BODY/');

		var targetcoords = findPos(evtTarget);
		var dx = clickcoords[0] - targetcoords[0];
		var dy = clickcoords[1] - targetcoords[1];

		var rx = (evtTarget.offsetWidth) ? dx / evtTarget.offsetWidth : 0.5;
		var ry = (evtTarget.offsetHeight) ? dy / evtTarget.offsetHeight : 0.5;

		var timestamp = Date.parse(new Date()) / 1000;

		var imgurl = 'storeheat.php?url='+encodeURIComponent(document.location);
		imgurl += '&xpath='+encodeURIComponent(dompath);
		imgurl += '&x='+encodeURIComponent(rx);
		imgurl += '&y='+encodeURIComponent(ry);
		imgurl += '&ts='+encodeURIComponent(timestamp);

	        var imgurl = '/clicktrackerproxy.php?path=' + encodeURIComponent(imgurl);

		var heatImg = new Image();
		heatImg.src = imgurl;

	}
);
function findPos(obj) {
	var curleft = curtop = 0;
	if (obj.offsetParent) {
		while (obj.offsetParent) {
			curleft += obj.offsetLeft;
			curtop  += obj.offsetTop;
			obj=obj.offsetParent;
		}
	}
	return [curleft,curtop];
}

// actual runtime code
if(document.location.href.match("showheatmap")) {
	document.write('<script type="text/javascript" src="http://clicktracker.iwink.nl/assets/js/heatmap-gen-code.js"></script>');
	document.write('<script type="text/javascript" src="http://clicktracker.iwink.nl/clicktracker.php' + document.location.search + '&rnd=' + Math.round(1000*Math.random()) + '&action=getheatmapdata"></script>');
} else {
	var ctImg = new Image();
	ctImg.src = getClicktrackerURL('');
}