protected void generateIndexFile(Character unicode) throws IOException {
        printHtmlHeader(configuration.getText("doclet.Window_Split_Index",
            unicode.toString()), null, true);
        printTop();
        navLinks(true);
        printLinksForIndexes();

        hr();

        generateContents(unicode, indexbuilder.getMemberList(unicode));

        navLinks(false);
        printLinksForIndexes();

        printBottom();
        printBodyHtmlEnd();
    }