[jQuery] Fading in Firefox?

[Paul]

This is probably another simple one.  (I searched the archive but didn't see
anything-maybe I'm not searching well.)  

 

I can't get the Fade effect to work in Firefox, though it does work in IE.
In Firefox the element just disappears suddenly rather than fading out.
Code below:

 

$('#podContainer:visible').fadeOut(1000, function(){

         $('#content').animate({className: 'contentWide'},1000);

});