$(document).ready(function(){
  $("#content-slider").slider({
    animate: true,
        orientation: 'vertical',
    change: handleSliderChange,
    slide: handleSliderSlide,
  	orientation: 'vertical',
  	value: 100
  });
});

function handleSliderChange(e, ui)
{
  var maxScroll = $("#content-scroll").attr("scrollHeight") - $("#content-scroll").height();
  $("#content-scroll").animate({scrollTop: ((100 - ui.value) * (maxScroll / 100))  }, 1000);
}

function handleSliderSlide(e, ui)
{
  var maxScroll = $("#content-scroll").attr("scrollHeight") - $("#content-scroll").height();
  $("#content-scroll").attr({scrollTop: ((100 - ui.value) * (maxScroll / 100)) });
}