title: How do they make real time data live on a web page?
body: <p>How do they do this? I would like to have web pages with data fields that change in real time as a person views the web page. Here is an <a href="http://www.usdebtclock.org/" rel="noreferrer">example</a>.</p>
  
  <p>How do they do this? JQuery? PHP?  </p>
  
  <p>I need to connect my field data to mySQL database.</p>