In this article I want to show an example in which are the main pages in a horizontal navigation. The related sub-pages are displayed in the sidebar when you click on the main page.

This is a complement to our previous post The Ultimative Guide For the_post_thumbnail In WordPress 2.9. In WordPress Version 2.9 probably the most discussed feature is the post thumbnail. Important for this function, it is only working when it is explicitly enabled in the theme.

WordPress 2.9 RC1 is released and the new post thumbnail function will not change until the final version hopefully.

WordPress has its own cron to automatically and scheduled run certain themes. Therefore WordPress provides several functions to use the cron.