$('#fan-club').live('click', function() {
    if ($('#banner-bottom').css('height') == '200px')
    {
        $('#banner-bottom').animate({
              height: 43
                  },
              1000,
              function() {
                  // Animation complete.
        });
    }
    else
    {
        $('#banner-bottom').animate({
              height: 200
                  },
              1000,
              function() {
                  // Animation complete.
        });
    }
});