$(document).ready(function () {
  var autoPlayTime = 7000;
  autoPlayTimer = setInterval(autoPlay, autoPlayTime);
  function autoPlay() {
    Slidebox('next');
  }
  $('#slidebox .next').click(function () {
    Slidebox('next', 'stop');
  });
  $('#slidebox .previous').click(function () {
    Slidebox('previous', 'stop');
  });
  var yPosition = ($('#slidebox').height() - $('#slidebox .next').height()) / 2;
  $('#slidebox .next').css('top', yPosition);
  $('#slidebox .previous').css('top', yPosition);
  $('#slidebox .thumbs a:first-child').removeClass('thumb').addClass('selected_thumb');
  $("#slidebox .content").each(function (i) {
    slideboxTotalContent = i * $('#slidebox').width();
    $('#slidebox .container').css("width", slideboxTotalContent + $('#slidebox').width());
  });
});

function Slidebox(slideTo, autoPlay) {
  var animSpeed = 1000; //animation speed
  var easeType = 'easeInOutExpo'; //easing type
  var sliderWidth = $('#slidebox').width();
  var leftPosition = $('#slidebox .container').css("left").replace("px", "");
  if (!$("#slidebox .container").is(":animated")) {
    if (slideTo == 'next') { //next
      if (autoPlay == 'stop') {
        clearInterval(autoPlayTimer);
      }
      if (leftPosition == -slideboxTotalContent) {
        $('#slidebox .container').animate({ left: 0 }, animSpeed, easeType); //reset
        $('#slidebox .thumbs a:first-child').removeClass('thumb').addClass('selected_thumb');
        $('#slidebox .thumbs a:last-child').removeClass('selected_thumb').addClass('thumb');
      } else {
        $('#slidebox .container').animate({ left: '-=' + sliderWidth }, animSpeed, easeType); //next
        $('#slidebox .thumbs .selected_thumb').next().removeClass('thumb').addClass('selected_thumb');
        $('#slidebox .thumbs .selected_thumb').prev().removeClass('selected_thumb').addClass('thumb');
      }
    } else if (slideTo == 'previous') { //previous
      if (autoPlay == 'stop') {
        clearInterval(autoPlayTimer);
      }
      if (leftPosition == '0') {
        $('#slidebox .container').animate({ left: '-' + slideboxTotalContent }, animSpeed, easeType); //reset
        $('#slidebox .thumbs a:last-child').removeClass('thumb').addClass('selected_thumb');
        $('#slidebox .thumbs a:first-child').removeClass('selected_thumb').addClass('thumb');
      } else {
        $('#slidebox .container').animate({ left: '+=' + sliderWidth }, animSpeed, easeType); //previous
        $('#slidebox .thumbs .selected_thumb').prev().removeClass('thumb').addClass('selected_thumb');
        $('#slidebox .thumbs .selected_thumb').next().removeClass('selected_thumb').addClass('thumb');
      }
    } else {
      var slide2 = (slideTo - 1) * sliderWidth;
      if (leftPosition != -slide2) {
        clearInterval(autoPlayTimer);
        $('#slidebox .container').animate({ left: -slide2 }, animSpeed, easeType); //go to number
        $('#slidebox .thumbs .selected_thumb').removeClass('selected_thumb').addClass('thumb');
        var selThumb = $('#slidebox .thumbs a').eq((slideTo - 1));
        selThumb.removeClass('thumb').addClass('selected_thumb');
      }
    }
  }
}