title: Toggle Material Design Lite checkbox
body: <p>I'm using a material design lite checkbox and I'm trying to check or uncheck the element using JavaScript. I tried this:</p>
  
  <pre><code>document.getElementById("checkbox-1").checked = true;
  </code></pre>
  
  <p>That do not work. I tried the same approach with jQuery:</p>
  
  <pre><code>$("#checkbox-1").prop('checked',true); 
  </code></pre>
  
  <p>That did not work either. Any help would be appreciated.</p>