function uncheckall(){if(document.getElementById('kategorie').checked==false){document.getElementById('thumb').checked=true;document.getElementById('newsbild').checked=true;document.getElementById('titlefield').style.display='none';}else{document.getElementById('thumb').checked=false;document.getElementById('newsbild').checked=false;document.getElementById('titlefield').style.display='inline';}}function toggleVisibility(source,target){document.getElementById(target).style.display='block';source.style.display='none';}