title: document.body.addEventListener is not working
body: <p>I'm working on a screen reader project and I needed to get the paragraph under the cursor. To do that in Firefox, I wrote an extension, to which my screen reader connects through sockets and gets the text. I needed to get the current element under the cursor and the function worked fine in a sample html page written by myself (So there is no problem with the function).</p>
  
  <p>But when I try to attach the function to my JS file in the extension, It seems that the function which is called by "document.body.addEventListener('mouseover',myfunc(mEvent),false);" is never called.
  But if I call </p>
  
  <pre><code>document.body.addEventListener('mouseover',function(mEvent){...},true);
  </code></pre>
  
  <p>myfunc is called.</p>
  
  <p>I'm new to javascript, so excuse me if it's a stupid question, But why the</p>
  
  <pre><code>document.body.addEventListener('mouseover',function(mEvent){...},true);
  </code></pre>
  
  <p>is not working?</p>
  
  <p>I always appreciated your nice helps and ideas. :)</p>