Expand DIV view on toggle

Expand DIV view on toggle

I have a simple toggle script which will expand /hide a menu.

How can I expand the height of the parent container if I toggle off the view of my menu?

  2. <script>
  3. $(document).ready(function(){
  4. $( "#route_btn" ).click(function() {
  5.  $( "#silver1" ).toggle( "slow", function() {
  6. // Animation complete.
  7.  });
  8. });
  9. });
  10. </script>