JSnav easily generates tabs, drop down menus, and trees. Simply set some variables such as color, font, etc. and enter the path, page name, and parent of every page on your site. This allows you to maintain your site much more easily and provides a consistent look throughout your site. Since all the links for your site are stored in one place, changes to the hierarchy and names of pages can be made easily, and the changes will be reflected on your entire site. Since it is written in JavaScript, JSnav works on all free hosts such as tripod.com. There is also a PHP version called phpNav available.