title: Drupal 6 preprocess blocks & nodes
body: <p>I build a <code>BLOCK</code> that sits on a right side of the website and is available for whole site. </p>
  
  <p>Also I got a many <code>CONTENT_TYPE NODES like (pages, news,gallery, files)</code>.</p>
  
  <p>How can I modify <code>_preprocess_xxxxx</code> and which one, so I can let my <code>BLOCK</code> know which <code>CONTENT_TYPE</code> is currently displaying. </p>
  
  <p>so then my <code>BLOCK</code> displays var $section = <code>top 10 download</code> for <code>CONTENT_TYPE==files</code>;
  and for <code>CONTENT_TYPE==news</code>, I will see <code>latest news</code> in my block var $section.
  etc, etc...</p>