function xnavi(d){
if (d==1){
if (document.getElementById('101').style.display==''||document.getElementById('101').style.display=='block'){
document.getElementById('101').style.display='none';
document.getElementById('102').style.display='none';
document.images.nav100.src='img/pfeil_oben.gif';}
else{
document.getElementById('101').style.display='block';
document.getElementById('102').style.display='block';
document.images.nav100.src='img/pfeil_unten.gif';
}}

if (d==2){
if (document.getElementById('201').style.display==''||document.getElementById('201').style.display=='block'){
document.getElementById('201').style.display='none';
document.getElementById('202').style.display='none';
document.getElementById('203').style.display='none';
document.images.nav200.src='img/pfeil_oben.gif';}
else{
document.getElementById('201').style.display='block';
document.getElementById('202').style.display='block';
document.getElementById('203').style.display='block';
document.images.nav200.src='img/pfeil_unten.gif';
}}

if (d==3){
if (document.getElementById('301').style.display==''||document.getElementById('301').style.display=='block'){
document.getElementById('301').style.display='none';
document.getElementById('302').style.display='none';
document.getElementById('303').style.display='none';
document.images.nav300.src='img/pfeil_oben.gif';}
else{
document.getElementById('301').style.display='block';
document.getElementById('302').style.display='block';
document.getElementById('303').style.display='block';
document.images.nav300.src='img/pfeil_unten.gif';
}}

if (d==4){
if (document.getElementById('401').style.display==''||document.getElementById('401').style.display=='block'){
document.getElementById('401').style.display='none';
document.getElementById('402').style.display='none';
document.getElementById('403').style.display='none';
document.images.nav400.src='img/pfeil_oben.gif';}
else{
document.getElementById('401').style.display='block';
document.getElementById('402').style.display='block';
document.getElementById('403').style.display='block';
document.images.nav400.src='img/pfeil_unten.gif';
}}

if (d==5){
if (document.getElementById('501').style.display==''||document.getElementById('501').style.display=='block'){
document.getElementById('501').style.display='none';
document.getElementById('502').style.display='none';
document.getElementById('503').style.display='none';
document.getElementById('504').style.display='none';
document.images.nav500.src='img/pfeil_oben.gif';}
else{
document.getElementById('501').style.display='block';
document.getElementById('502').style.display='block';
document.getElementById('503').style.display='block';
document.getElementById('504').style.display='block';
document.images.nav500.src='img/pfeil_unten.gif';
}}

if (d==6){
if (document.getElementById('601').style.display==''||document.getElementById('601').style.display=='block'){
document.getElementById('601').style.display='none';
document.getElementById('602').style.display='none';
document.getElementById('603').style.display='none';
document.getElementById('604').style.display='none';
document.images.nav600.src='img/pfeil_oben.gif';}
else{
document.getElementById('601').style.display='block';
document.getElementById('602').style.display='block';
document.getElementById('603').style.display='block';
document.getElementById('604').style.display='block';
document.images.nav600.src='img/pfeil_unten.gif';
}}

if (d==7){
if (document.getElementById('701').style.display==''||document.getElementById('701').style.display=='block'){
document.getElementById('701').style.display='none';
document.images.nav600.src='img/pfeil_oben.gif';}
else{
document.getElementById('701').style.display='block';
document.images.nav600.src='img/pfeil_unten.gif';
}}
}