I'm sure it's a simple issue, but this slideup/slidedown isn't working as I'd expected. The animation is fine, but just after the slideUp event completes it shows the entire block for a split second before turning invisible.  Am I missing something obvious?

1. <div class='outer'>Text Header Here
2.  <DIV class='inner'>
3.  Some text Here 2
4.  </DIV>
5. </div>
6.  
7. <script type='text/javascript'>
8. $('.outer').click(function() {
9. if($(this).find('DIV:visible').length == 0){
   
10. $(this).find('DIV').slideDown('slow', function() { });
    
11. } else {
    
12. $(this).find('DIV').slideUp('normal', function() { $(this).hide() });
    
13.  }
    
14. 
    
15. });
    
16. </script> 

Using latest 1.4 jquery min. Thanks!