Toggle multiple elements.

Toggle multiple elements.

Guys;
           I have multiple DIV's that I'm I'd like to toggle with both classes as specified in the function below but it switches just between 2 of the DIV's only and never get to the others. Any ideas of what the problem could be.
  1.         <script>

  2. $.fn.slideFadeToggle  = function(speed, easing, callback) {
  3.         return this.animate({opacity: 'toggle', height: 'toggle'}, speed, easing, callback);
  4. };

  5. $(document).ready(function(){
  6. $("div.faces:not(:first)").hide();
  7.   $(".lefter,.righter").click(function(){
  8.    $(this).siblings("div.faces").slideFadeToggle('slow');
  9.   });
  10. });
  11. </script>