browseTitles = (!browseAuthors && !browseDates);
browseSubjects = ((browseWhat != null) && browseWhat .equalsIgnoreCase("subjects"));  browseTitles = ((!browseAuthors && !browseDates)&& !browseSubjects );
    public void init()    {        // Sort out what we're browsing - default is titles        String browseWhat = getInitParameter("browse");        browseAuthors = ((browseWhat != null) && browseWhat                .equalsIgnoreCase("authors"));        browseDates = ((browseWhat != null) && browseWhat                .equalsIgnoreCase("dates"));        browseTitles = (!browseAuthors && !browseDates);    }