title: How to disable/enable input field on click with jQuery
body: <p>How to properly enable/disable input field on click with jQuery?</p>
  
  <p>I was experimenting with:</p>
  
  <pre><code>$("#FullName").removeAttr('disabled');
  </code></pre>
  
  <p>which removes <code>disabled="disabled"</code> from this input field:</p>
  
  <pre><code>&lt;input id="FullName" style="width: 299px" value="Marko" disabled="disabled" /&gt;
  </code></pre>
  
  <p>But how to add it again with click on another button or how to disable input field on click?</p>