gistfile1.js

<div id="body">
  <div id="link_test">
    <a href="#should_not_show_up" id="the_link">Click Me</a>
  </div>
  
  <script type="text/javascript">
  function TestCase() {
    document.getElementById('link_test').addEventListener('click', function(){
      console.log('clicked from container');
      return false;
    });
    
    document.getElementById('the_link').addEventListener('click', function(e) {
      console.log("click from inside");
      e.stopPropagation();
      e.preventDefault();
      return false;
    });
  }
  TestCase();
  </script>
</div>