rem: gPrefs.setIntPref("mail.show_headers",2); 
add: gPrefBranch.setIntPref("mail.show_headers",2); 
context: function MsgViewAllHeaders(){    gPrefs.setIntPref("mail.show_headers",2);    MsgReload();    return true;}
meta: 5872	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5872/7cb00076c55ebf89f74d18f62ce8512b7ca5846f/mailWindowOverlay.js/clean/mailnews/base/resources/content/mailWindowOverlay.js