navig.showtitles boolean navig.showtitles Display titles in HTML headers and footers? 1 If non-zero, the headers and footers of chunked HTML display the titles of the next and previous chunks, along with the words 'Next' and 'Previous' (or the equivalent graphical icons if navig.graphics is true). If false (zero), then only the words 'Next' and 'Previous' (or the icons) are displayed.