$(document).ready(function() {
  $('#slider').nivoSlider(
  {
    effect:'random',
    slices: 6,
    animSpeed: 400,
    pauseTime: 6000,
    startSlide: 0,
    directionNav: true,
    directionNavHide: true,
    controlNav: true,
    controlNavThumbs: false,
    controlNavThumbsFromRel: false,
    controlNavThumbsSearch: '.jpg',
    controlNavThumbsReplace: '_thumb.jpg',
    keyboardNav: true,
    pauseOnHover: true,
    manualAdvance: false,
    captionOpacity: 0.8,
    beforeChange: function () { },
    afterChange: function () { },
    slideshowEnd: function () { }
  });
});