title: Having trouble accessing event handler
body: <p>From what I'm been reading from everywhere I checked, this is how I would access a event handler's attributes:</p>
  <pre><code>canvas.addEventListener('onmousemove', traceMouse(e));  //Handler gets passed in as 'e'
  
  function traceMouse(e) {   //Then I could just use it like a normal parameter, right?
      mouseX = e.clientX;
      mouseY = e.clientY;
      }
  </code></pre>
  <p>Unfortunately firebug insists that e is not defined. I have absolutely no idea where I went wrong, I probably made some dumb mistake again, and I'm ready to bite my own head off.</p>
  <p>Help?</p>