document.getElementById('cz').innerHTML='<img src="images/cz.gif" alt="CZ: Česky" />';
document.getElementById('sk').innerHTML='<img src="images/sk.gif" alt="SK: Slovensky" />';
document.getElementById('en').innerHTML='<img src="images/gb.gif" alt="EN: English" />';
document.getElementById('pl').innerHTML='<img src="images/pl.gif" alt="PL: Polski" />';
document.getElementById('de').innerHTML='<img src="images/de.gif" alt="DE: Deutsch" />';
document.getElementById('ru').innerHTML='<img src="images/ru.gif" alt="RU: Pусский" />';