$(document).ready(function(){
   $('.teaserFlip').bind("click",function(){
      var elem = $(this);
      if(elem.data('flipped'))
      {
         elem.revertFlip();
         elem.data('flipped',false)
      }
      else
      {
         elem.flip({
            direction:'lr',
            speed: 350,
            onBefore: function(){
               elem.html(elem.siblings('.teaserData').html());
            }
         });
         
         // Setting the flag:
         elem.data('flipped',true);
      }
   });
   
});