var position_top = 20;
var position_is_down = false;
var left_ads_height = 0;

$(document).ready(function() {
  /*$(window).scroll(function() {
    if(left_ads_height == 0) {
      left_ads_height = $("#left_ads").css('height');
      left_ads_height = left_ads_height.replace('px', '');
    }
  
    var window_height = $(window).height();
    var pos = $("#position").position();
    if(pos.top > position_top && !position_is_down) {
      if(pos.top <= 60) {
        $('#left_ads').stop().css('top', 65 - pos.top + 'px');
        return;
      }

      if(left_ads_height > 800) {
        var t = parseInt(left_ads_height.substring(1, 3));
        t = t + 100;
      } else {
        var t = parseInt(left_ads_height.substring(1, 3));
      }

      t += (570 - window_height);

      $('#left_ads').stop().animate({'top': +t+'px'}, 1000);

      position_is_down = true;
    }
    if(pos.top < position_top && position_is_down) {
      $('#left_ads').stop().animate({'top': '0px'}, 1000);
      position_is_down = false;
    }
    position_top = pos.top;

    if(pos.top <= 60 && !position_is_down) {
      $('#left_ads').stop().css('top', 65 - pos.top + 'px');
    }
  });*/
});