add:  document.getElementById("imap.overrideNamespaces").value = imapServer.overrideNamespaces;  
context: function saveServerLocally(imapServer){    var controls = document.controls;    // boolean prefs, JS does the conversion for us    document.getElementById("imap.dualUseFolders").value = imapServer.dualUseFolders;    document.getElementById("imap.usingSubscription").value = imapServer.usingSubscription;    // string prefs    document.getElementById("imap.personalNamespace").value = imapServer.personalNamespace;    document.getElementById("imap.publicNamespace").value = imapServer.publicNamespace;    document.getElementById("imap.serverDirectory").value = imapServer.serverDirectory;    document.getElementById("imap.otherUsersNamespace").value = imapServer.otherUsersNamespace;}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/84b16c0ea08a7c4369e4d00c2a370476c0e102d4/am-server.js/buggy/mailnews/base/prefs/resources/content/am-server.js