title: jquery/javascript: function(e){.... what is e? why is it needed? what does it actually do/accomplish?
body: <pre><code>$('#myTable').click(function(e) {
      var clicked = $(e.target);
      clicked.css('background', 'red');
  });
  </code></pre>
  
  <p>Can someone explain this to me, and explain why e is needed, and what it actually does..</p>