function funkcja1(){
document.getElementById('onas').style.visibility='hidden';
document.getElementById('onas').style.display='none';
document.getElementById('produkty').style.display='none';
document.getElementById('produkty').style.visibility='hidden';
document.getElementById('oferta').style.visibility='hidden';
document.getElementById('oferta').style.display='none';
document.getElementById('inne').style.visibility='hidden';
document.getElementById('inne').style.display='none';
document.getElementById('linki').style.visibility='hidden';
document.getElementById('linki').style.display='none';
//document.getElementById('nowosci').style.visibility='visible';
//document.getElementById('nowosci').style.display='inline';
//document.getElementById('artykuly').style.visibility='hidden';
//document.getElementById('artykuly').style.display='none';
}
function nowosci(){
document.getElementById('nowosci').style.visibility='visible';
document.getElementById('nowosci').style.display='inline';
document.getElementById('artykuly').style.visibility='hidden';
document.getElementById('artykuly').style.display='none';}
function artykuly(){
document.getElementById('artykuly').style.visibility='visible';
document.getElementById('artykuly').style.display='inline';
document.getElementById('nowosci').style.visibility='hidden';
document.getElementById('nowosci').style.display='none';}