rem: if (event.shiftKey) 
add: if (event && event.shiftKey) 
context: function MsgReplyToAllMessage(event) {  var loadedFolder = GetLoadedMsgFolder();  var messageArray = GetSelectedMessages();  dump("\nMsgReplyToAllMessage from XUL\n");  if (event.shiftKey)    ComposeMessage(msgComposeType.ReplyAll, msgComposeFormat.OppositeOfDefault, loadedFolder, messageArray);  else    ComposeMessage(msgComposeType.ReplyAll, msgComposeFormat.Default, loadedFolder, messageArray);}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/17bd94e4357253136865ee6bc06b1abaf5987964/mailWindowOverlay.js/clean/mailnews/base/resources/content/mailWindowOverlay.js