Slide toggle (.slideToggle) and change text

HTML

<a id="aTag" href="javascript:toggleAndChangeText();">
   HIDE
</a>
<div id="divToToggle">
   Content that will be shown or hidden.<strong>
</div>

JavaScript

function toggleAndChangeText() {

     $('#divToToggle').slideToggle('fast', function() {
         if ($('#divToToggle').css('display') == 'none') {
              $('#aTag').html('SHOW');
         }
         else {
              $('#aTag').html('HIDE');
         }
     });
}