(function() {

$.fn.smoothScroll = function(options) {
  var defaultOptions = {
    speed: 500,
    easing: 'easeOutExpo'
  };
  options = $.extend({}, defaultOptions, options || {});
  return this.each(function() {
    $(this).on('click',function() {
      var href = $(this).attr('href');
      var target = $(href === '#' || href === '' ? 'html' : href);
      var pos = target.offset().top;
      $('body,html').animate({
        scrollTop : pos
      }, {
        duration: options.speed,
        easing: 'swing'
      });
      return false;
    });
  });
};

$(function() {
  // google analytics event tracking
  //$('[data-eventlabel]').each(function() {
  //  var label = $(this).attr('data-eventlabel');

  //  $(this).on('click', function() {
  //    if (('ga' in window) && label !== '') {
  //      window.ga('send', 'event', 'dscanner_promotion', 'click', label);
  //    }
  //  });
  //});

  $('.rollover').each(function(_, image) {
    var src = image.src;
    $(image).hover(function() {
      image.src = src.replace(/_off\./, '_on.');
    }, function() {
      image.src = src.replace(/_on\./, '_off.');
    });
  });

  $('.js-smoothscroll').smoothScroll();

  $('.current-year').each(function() {
    var thisyear = (new Date()).getFullYear();

    $(this).text(thisyear);
  });
});
}());