if (!this._canGoOffline()) { 
if (!ioService.offline && !this._canGoOffline()) { 
  toggleOfflineStatus: function ()  {    var ioService = Components.classes["@mozilla.org/network/io-service;1"].      getService(Components.interfaces.nsIIOService2);    // Stop automatic management of the offline status    try {      ioService.manageOfflineStatus = false;    } catch (ex) {    }      if (!this._canGoOffline()) {      this._updateOfflineUI(false);      return;    }    ioService.offline = !ioService.offline;    // Save the current state for later use as the initial state    // (if there is no netLinkService)    gPrefService.setBoolPref("browser.offline", ioService.offline);  },
5872	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/5872/358cf36800ec8fd0191d3d139a5000c2939fd93e/browser.js/buggy/browser/base/content/browser.js