Firefox acts weird when toggling an element while in chrome it works fine
<p>Here's the example: <a href="http://jsbin.com/ovupuq/3" rel="nofollow">http://jsbin.com/ovupuq/3</a></p>

<pre><code>$(document).ready(function(){
      var cursor = $("&lt;span&gt;_&lt;/span&gt;").appendTo("p"),
          blik = function(){
                  $(cursor).toggle(200);
                };
      setInterval(blik,500);
});
</code></pre>

<p>The problem is that the "Hello World!" text bumps everytime the cursor is toggled. This happens only in firefox 11, chrome and IE8 work as expected.</p>

<p>Another thing I notice is that if I have this running for a couple minutes the 500ms interval I set seems to change into some random values, which makes the cursor blink faster. This happens only in chrome. </p>
