add: document.getElementById("key_toggleMessagePane").removeAttribute("disabled"); 
context: function HidingAccountCentral(){    try    {        window.frames["accountCentralPane"].location.href = "about:blank";    }    catch (ex)    {        dump("Error hiding AccountCentral page -> " + ex + "\n");    }    gAccountCentralLoaded = false;}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/a29de00baf0ba07ae05300ecb2d2c233346ffbbd/mailWindow.js/clean/mail/base/content/mailWindow.js