function reload_counter(){
new Ajax.Request('/ajax', {
	method:'post',
	parameters: {AjaxRequest:'json',action:'counter'},
  onSuccess: function(transport){
  var json = transport.responseText.evalJSON();
		$('counter_total').innerHTML = 'Besucher: '+json.counter.total;
		$('counter_total').title = 'Heute: '+json.counter.today;
		$('counter_online').innerHTML = 'User Online: '+json.online;
		$('counter_traffic').innerHTML = json.traffic;
   }
});
	}

Event.observe(window,'load',function(){new PeriodicalExecuter(reload_counter,240);});