function mod_helloworld_show_message_f($msg) {
  alert($msg);
}

function openKursterminansicht(){
	elem = document.getElementById('Kurstermine');
	if(elem.style.display == 'block'){
		elem.style.display = 'none';		
	}else{
		elem.style.display = 'block';		
	}
		
}