rem:  var folder = CrossFolderNavigation(type); if (!folder) return;      if (folder.Value == gCurrentFolderUri) LoadMessageByNavigationType(type); 
add: CrossFolderNavigation(type); 
context: function performNavigation(type){  // Try to load a message by navigation type if we can find  // the message in the same folder.  if (LoadMessageByNavigationType(type))    return;     // we need to span another folder   var folder = CrossFolderNavigation(type);  if (!folder)    return;  // Try again to load a message by nagivation by type if  // the folder has been changed.  If the folder was not changed,  // then the first call to LoadMessageByNavigationType() would  // have loaded the message.  if (folder.Value == gCurrentFolderUri)    LoadMessageByNavigationType(type);}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/8e30e39bb546cc1eaf980f420b0affdc1db32802/messageWindow.js/clean/mailnews/base/resources/content/messageWindow.js