function zeigeTermin(id){
	
	num_div = document.getElementsByTagName('div').length;
	for(i=0; i<num_div; i++){
		box = String(document.getElementsByTagName('div')[i].getAttribute('id'));
		if(box.substr(0,12)=="termin_lang_"){
			document.getElementsByTagName('div')[i].style.display="none";
		}
		if(box.substr(0,12)=="termin_kurz_"){
			document.getElementsByTagName('div')[i].style.display="block";
		}
		if(box.substr(0,7)=="teaser_"){
			document.getElementsByTagName('div')[i].style.display="none";
		}
	}
	
	div = "termin_kurz_" + id;
	document.getElementById(div).style.display="none";
	div = "termin_lang_" + id;
	document.getElementById(div).style.display="block";
	div = "teaser_" + id;
	document.getElementById(div).style.display="block";
	
}