jQuery.extend(jQuery.easing,
{
  easeOutQuad: function(x, t, b, c, d) {
    return -c *(t/=d)*(t-2) + b;
  }
});

$(function(){
  $('.sponsors-list-container').serialScroll({
    items:'li',
    axis:'x',
    easing:'easeOutQuad',
    duration:'200'
  });

  $('.gold-button').click(function() { $('.sponsors-slider').css({backgroundImage:"url('../assets/images/corporate/sponsors-gold.png')"}); $('.sponsors-list-container').trigger('goto', [0]); return false; });
  $('.silver-button').click(function() { $('.sponsors-slider').css({backgroundImage:"url('../assets/images/corporate/sponsors-silver.png')"}); $('.sponsors-list-container').trigger('goto', [1]); return false; });
  $('.bronze-button').click(function() { $('.sponsors-slider').css({backgroundImage:"url('../assets/images/corporate/sponsors-bronze.png')"}); $('.sponsors-list-container').trigger('goto', [2]); return false; });
});