rem: if (arrayOfPrefs) 
add: if (arrayOfPrefs) 
context: function LangAlreadyActive(langId){  var found = false;  try {    var arrayOfPrefs = pref_string.split(', ');    if (arrayOfPrefs)       for (var i = 0; i < arrayOfPrefs.length; i++) {      if (arrayOfPrefs[i] == langId) {         found = true;         break;      }    }    return found;  }  catch(ex){     return false;  }}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/eaa6754a0a946375badf1165b3e4af3999e4b03c/pref-languages.js/clean/xpfe/components/prefwindow/resources/content/pref-languages.js