rem: var playSound = document.getElementById("finishedNotificationSound").checked; 
add: var disableCustomUI = !document.getElementById("finishedNotificationSound").checked; 
context: function PlaySoundCheck(){  var playSound = document.getElementById("finishedNotificationSound").checked;  var disableCustomUI = !playSound;  var finishedSoundUrl = document.getElementById("finishedSoundUrl");  finishedSoundUrl.disabled = disableCustomUI;  document.getElementById("preview").disabled = disableCustomUI || (finishedSoundUrl.value == "");  document.getElementById("browse").disabled = disableCustomUI;}
meta: 8395	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/8395/f6bc7bcc0efd8fbaf5a1f1e049624f306272829a/pref-download.js/clean/xpfe/components/prefwindow/resources/content/pref-download.js