function klappen(id) {
	if($('trigger_'+id).style.display != 'none') { 
		$('trigger_link_'+id).innerHTML = '<b>Karte anzeigen</b><img src="../images/pfeil-unten.png" alt="" width="18" height="11" style="margin-left: 10px;" />';
		$('trigger_'+id).style.display = 'none';
	}
	else {
		$('trigger_link_'+id).innerHTML = '<b>Karte verbergen</b><img src="../images/pfeil-oben.png" alt="" width="18" height="11" style="margin-left: 10px;" />';
		$('trigger_'+id).style.display = 'inline';
	}
}