rem: gPrefs.setIntPref("mail.show_headers",1); 
add: gPrefBranch.setIntPref("mail.show_headers",1); 
context: function MsgViewNormalHeaders(){    gPrefs.setIntPref("mail.show_headers",1);    MsgReload();    return true;}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/944dbeea99783f32c08eddb7e3d124ea7c165a5e/mailWindowOverlay.js/clean/mailnews/base/resources/content/mailWindowOverlay.js