function show_next_cat(next_id, etappe){
	var id_des_aktuellen_elements = next_id - 1;

	
	var e = document.getElementById("her_raeder_"+etappe+"_kat_id_"+id_des_aktuellen_elements);
	var f = document.getElementById("k_"+etappe+"_buchen_kategorien_"+next_id);
	
	if(e.value != ""){
		f.style.display = 'block';
	}
}

function toggleElement(element){	
	var div_container_link = element+'_weitere_etappe';
	var f = document.getElementById(div_container_link);
	if(f != null){
		f.style.display='none';
	}	

	var e = document.getElementById(element);
 	if(e.style.display == 'block')
  	e.style.display = 'none';
  else
  	e.style.display = 'block';
}

function toggleElementGepaeck(element){	
	var div_container_link = element+'_weitere_etappe';
	var f = document.getElementById(div_container_link);
	if(f != null){
		f.style.display='none';
	}	

	var e = document.getElementById(element);
 	if(e.style.display == 'block')
  	e.style.display = 'none';
  else
  	e.style.display = 'block';
}

function toggleElementPerson(element){	
	var div_container_link = element+'_weitere_etappe';
	var f = document.getElementById(div_container_link);
	if(f != null){
		f.style.display='none';
	}	

	var e = document.getElementById(element);
 	if(e.style.display == 'block')
  	e.style.display = 'none';
  else
  	e.style.display = 'block';
}