title: Updating Schema.org availability on my website
body: <p>In my ProductDetails.html page I have added the below mircodata, but I need to toggle it on and off based on inventory being InStock or OutofStock. Right now it is toggled InStock for all products. Please help!</p>
  
  <pre><code>&lt;link itemprop="availability" href="schema.org/InStock"; /&gt;
  </code></pre>