title: Convert following jquery code to javascript code
body: <p>This is my jquery code </p>
  
  <pre><code>$(this).blur(function () {
      name_valid(recordid);
  });
  </code></pre>
  
  <p>I want this jquery code to be converted to core js code.</p>
  
  <p>I also dont want to change anything in the first_name field and add onblur event.</p>
  
  <p>Can I just with javascript and no html convert this jquery to js.</p>