title: Hash md5 email in Google Tag Manager
body: <p>I have in my Tag Manager a variable {{Email - not encrypted}} that contains a string (email address or empty) but not hashed in md5. 
  I need to encrypt/hash this data in md5 in order to send it to some tags. 
  I know to do it quickly and I don't have access to the code. 
  Here is the script I tried to put as custom HTML in Tag Manager but it doesn't work. (error Parse error. primary expression expected. 
  I'm Really new with JavaScript so I don't know/understand what is wrong. 
  Here is my script : </p>
  
  <pre><code>&lt;script src="https://cdnjs.cloudflare.com/ajax/libs/blueimp-md5/2.10.0/js/md5.min.js"&gt;&lt;/script&gt;
  &lt;script&gt;
  function() {
      var hash = CryptoJS.MD5({{Email - not encrypted}});
      return hash;
      }
  &lt;/script&gt;
  </code></pre>
  
  <p>Thanks for your help.
  Regards.</p>