function escriuMenu(){
temp = ''
temp += (window.location.href.indexOf('landeskunde.htm')==-1)? 
'<a href="landeskunde.htm">Landeskunde</a> | '
: 'Landeskunde | '
temp += (window.location.href.indexOf('geschichte.htm')==-1)? 
'<a href="geschichte.htm">Geschichte</a> | '
: 'Geschichte | '
temp += (window.location.href.indexOf('sprachwissenschaft.htm')==-1)? 
'<a href="sprachwissenschaft.htm">Sprachwissenschaft</a> | '
: 'Sprachwissenschaft | '
temp += (window.location.href.indexOf('literatur.htm')==-1)?
'<a href="literatur.htm">Literatur</a> | '
: 'Literatur | '
temp += (window.location.href.indexOf('sekundaer.htm')==-1)? 
'<a href="sekundaer.htm">Sekundärliteratur</a> | '
: 'Sekundärliteratur | '
temp += (window.location.href.indexOf('anderemedien.html')==-1)?
'<a href="anderemedien.htm">Andere Medien</a> | '
: 'Andere Medien | '
temp += (window.location.href.indexOf('links.htm')==-1)?
'<a href="links.htm">Links</a>'
: 'Links'
document.write(temp)
}