rem: return messenger.messageServiceFromURI(messageUri).messageURIToMsgHdr(messageUri); 
add: return messenger.msgHdrFromURI(messageUri); 
context: function GetMsgHdrFromUri(messageUri){  return messenger.messageServiceFromURI(messageUri).messageURIToMsgHdr(messageUri);}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/fe07aedeea0c9be3af990dba4844697f2a13c40e/messageWindow.js/clean/mailnews/base/resources/content/messageWindow.js