title: Generate Date Of Birth from ID number for people born after 2000
body: <p>I am looking for a function to generate/ populate date of birth for ID numbers of people born after 2000.</p>
  
  <p>This is my code right now, but it doesn't extend to after 2000</p>
  
  <pre><code>   var Year = idNumber.substring(0, 2);
     var Month = idNumber.substring(2, 4)
     var Day = idNumber.substring(4, 6)
     var dob = '19' + Year + '/' + Month + '/' + Day;
  </code></pre>
  
  <p>How can I modify this to accommodate > 2000?</p>