title: add action / url
body: <p>Wordpress 3.2.2</p>
  
  <p>What's the steps to define a custom link in the wordpress admin such as</p>
  
  <pre><code>http://localhost:8888/wp-admin/admin.php?action=update_posts
  </code></pre>
  
  <p>so that when this link is accessible by admins, a specific function is executed.</p>
  
  <p>(in the context of a custom wordpress plugin)</p>
  
  <p><strong>EXAMPLE CODE</strong></p>
  
  <pre><code>function my_special_function(){
  
      echo '&lt;div&gt; Hello World &lt;/div&gt;';
  
  }
  
  $page_title = "Hello Page Title";
  $menu_title = "Hello Menu Title";
  $capability = "import";
  $menu_slug = "My Menu Slug";
  $function = my_special_function;
  add_menu_page($page_title,  $menu_title, $capability, $menu_slug, $function);
  </code></pre>
  
  <p>So I have this example code. Now what?  And what url should I load to see hello world printed on in the html page?</p>