title: Get Current Top Level Category with Magento
body: <p>How do I get the current (active) top level category and its subcategories??</p>
  
  <p>I do not want the root category, just the highest level category and all of its subcategories.</p>
  
  <p>If I am in the Women’s Category for instance:</p>
  
  <pre><code>Women 
  - Apparel 
  -- Shirts 
  -- Pants 
  - Accessories 
  -- Handbags 
  -- Jewelry
  </code></pre>
  
  <p>Even if i am looking at shirts, i would like the category tree to remain the same.</p>
  
  <p>Any help would be greatly appreciated.</p>