function showhide(id) {	

	// n = div, a = bereichslink
	nid = 'n' + id;
	aid = 'a' + id;
	
	if (document.getElementById(nid).style.visibility != 'visible') {
	
		document.getElementById(aid).style.backgroundImage = 'url('+baseLink+'/img/frame/nav/winstyle/arrow_up.gif)';
		document.getElementById(aid).style.backgroundPosition  = '142px 8px';
				
		document.getElementById(nid).style.visibility = 'visible';
		document.getElementById(nid).style.display= 'block';		
	} else {	
	
		document.getElementById(aid).style.backgroundImage  = 'url('+baseLink+'/img/frame/nav/winstyle/arrow_down.gif)';
		document.getElementById(aid).style.backgroundPosition  = '142px 9px';
		
		document.getElementById(nid).style.visibility = 'hidden';
		document.getElementById(nid).style.display = 'none';		
	}
	
	aktueller_bereich=nid;
	
}

function show(id) {	

	// n = div, a = bereichslink
	nid = 'n' + id;
	aid = 'a' + id;
	
	
	document.getElementById(aid).style.backgroundImage = 'url('+baseLink+'/img/frame/nav/winstyle/arrow_up.gif)';
	document.getElementById(aid).style.backgroundPosition  = '142px 8px';
				
	document.getElementById(nid).style.visibility = 'visible';
	document.getElementById(nid).style.display= 'block';		
	
	
	aktueller_bereich=nid;
	
}