function addEvent(obj, evType, fn, useCapture){
  if (obj.addEventListener){
    obj.addEventListener(evType, fn, useCapture);
    return true;
  } else if (obj.attachEvent){
    var r = obj.attachEvent("on"+evType, fn);
    return r;
  } else {
    alert("Handler could not be attached");
  }
}


function strefaStats () {
    if (screen.width || screen.height) {	s = screen.width + 'x' + screen.height;} else {	s = '0x0';}
    v = navigator.appName;
    // ilosc kolorow
    if (v != 'Netscape') {	c = screen.colorDepth;} else {	c = screen.pixelDepth;}
    referer = '' + escape(document.referrer);	// referer
    rand=Math.round(1000*Math.random());// liczba losowa
    // komplet parametrow
    r = '?userid=16153&referer='+referer+'&res='+s+'&color='+c+'&url='+document.URL+'&showme=il&rand='+rand;
    var body = document.getElementsByTagName ('body')[0] ;
    var img = document.createElement ('img') ;
    img.src = "http://poczta.strefa.pl/www/stats/log/stateria.html"+r ;
    img.height = 0 ;
    img.width = 0 ;
    body.appendChild (img) ;
}

addEvent (window, 'load', strefaStats) ;