rem: soundLocation = document.getElementById('newMailNotificationType').value == 1 ? document.getElementById("soundUrlLocation").value : "_moz_mailbeep" 
add: soundLocation = this.newMailNotificationType.value == 1 ? this.soundUrlLocation.value : "_moz_mailbeep" 
context:   previewSound: function ()  {      if (!this.mSound)      this.mSound = Components.classes["@mozilla.org/sound;1"].createInstance(Components.interfaces.nsISound);        var soundLocation;    soundLocation = document.getElementById('newMailNotificationType').value == 1 ?                     document.getElementById("soundUrlLocation").value : "_moz_mailbeep"    if (soundLocation.indexOf("file://") == -1)       this.mSound.playSystemSound(soundLocation);    else     {      var ioService = Components.classes["@mozilla.org/network/io-service;1"].getService(Components.interfaces.nsIIOService);      this.mSound.play(ioService.newURI(soundLocation, null, null));    }  }, 
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/3f77699e4c659bec4db9aaad2070165fc533c863/notifications.js/clean/mail/components/preferences/notifications.js