rem: return null; 
context: function MsgOpenNewWindowForMessage(messageUri, folderUri){    if (!messageUri)        // use GetFirstSelectedMessage() to find out which message to open        // instead of gDBView.getURIForViewIndex(currentIndex).  This is        // required because on a right-click, the currentIndex value will be        // different from the actual row that is highlighted.        // GetFirstSelectedMessage() will return the message that is        // highlighted.        messageUri = GetFirstSelectedMessage();    if (!folderUri)        // use GetSelectedFolderURI() to find out which message to open        // instead of gDBView.getURIForViewIndex(currentIndex).  This is        // required because on a right-click, the currentIndex value will be        // different from the actual row that is highlighted.        // GetSelectedFolderURI() will return the message that is        // highlighted.        folderUri = GetSelectedFolderURI();    // be sure to pass in the current view....    if (messageUri && folderUri) {        return window.openDialog( "chrome://messenger/content/messageWindow.xul", "_blank", "all,chrome,dialog=no,status,toolbar", messageUri, folderUri, gDBView );    }    return null;}
meta: 8395	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/8395/86c01e5f52f3ef3a58ded92f25308cf7f4d645eb/mailWindowOverlay.js/clean/mailnews/base/resources/content/mailWindowOverlay.js