function ueberwachungNewestPics() {
	if($('button_mehrBilder')) {
		Event.observe('button_mehrBilder', 'mouseover', mouseOverNewestPics);	
		Event.observe('button_mehrBilder', 'mouseout', mouseOutNewestPics);
		Event.observe('button_mehrBilder', 'click', morePics);
	}	
}

function mouseOutNewestPics() {
	$('button_mehrBilder').removeClassName('mehrBilder_hover');
	$('button_mehrBilder').toggleClassName('mehrBilder');
}

function mouseOverNewestPics() {
	$('button_mehrBilder').removeClassName('mehrBilder');
	$('button_mehrBilder').toggleClassName('mehrBilder_hover');
}

function morePics() {
	updateCommercials();
}

function updateCommercials() {
	var myRequest = new Ajax.Request('ajaxEngine.php?element=commercials', {
  			method: 'get',
  			onSuccess: function(r){
				$('commercials').update(r.responseText);
				ueberwachungNewestPics();
				ueberwachungVoting();
			}
		}
	);
}

document.observe('dom:loaded', ueberwachungNewestPics);