title: Magento - Check if specific category is active
body: <p>Is there any way of checking if one specific category is active?  I have a hard coded navigation and I want to show or hide a link depending on the active status of a specific category.  Perhaps something like this:</p>
  
  <pre><code>// Check to see if the Sale category is active...
  $specificCatID = '90';    
  if(isCategoryActive($specificCatID)){
      // Specific category is active, do something
  }
  </code></pre>
  
  <p>I have searched high and low, and have yet to get close to being able to solve this.  Any help, much appreciated.</p>