title: Magento hide out of stock products
body: <p>I have <code>System-&gt;Configuration-&gt;Catalog-&gt;Inventory-&gt;Display Out of Stock Products</code> option set to <code>No</code>.</p>
  
  <p>But this out-of-stock products still exist in category list. Is this config option works with product collection? How can i hide out-of-stock products from category product collections?</p>