<html>
<style>a { text-decoration: underline; display: block; }</style>
<body>
  <a onclick="javascript:alert('1');">link with no href but onclick</a>
  <a id="add-click-handler-to-me">link with no href and click handler added via script</a>
  <script>
    document.getElementById('add-click-handler-to-me').
      addEventListener('click', function() { alert('2'); }, false);
  </script>
</body>
</html>