function online() {
	var req = xmlreq();

	var parameters = "url="+escape(encodeURI(document.URL));

	req.open("POST", geturl() + 'content/php_ajax/ajax_online_get.php', true);
	req.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
	req.setRequestHeader("Content-length", parameters.length);
	req.setRequestHeader("Connection", "close");
	req.send(parameters);
	req.onreadystatechange = function(){ //<-- anonyme funktion
		switch(req.readyState) {
			case 4:
	                        if(req.status!=200) {
					//alert("Fehler:"+req.status); 
	                        }else{
					if(document.getElementById('infobox_online_users') != null) {
						document.getElementById('infobox_online_users').innerHTML = req.responseText;
					}
				}
			break;
			default:
				return false;
			break;
		}
	};
}

window.setTimeout("online()", 60000);