$(document).ready(function(){

  var element = $("#scrolling_sidebar");
  var window_height = $(window).height();
  var element_height = element.height();

  $(window).scroll(function() { 
    if (window_height > element_height) {
      if (($(document).scrollTop() + element.height()) > ($(document).height() - $("#footer").height() - 9)) {
        element.css("position","absolute");
        element.css("top", "auto");
        element.css("bottom","-60px");
      }
      else if ($(document).scrollTop() > 100) {
        element.css("position","fixed");
        element.css("top","9px");
        element.css("padding-top","0");
        element.css("bottom","auto");
      }
      else {
        element.css("position","relative");
        element.css("top","auto");
        element.css("padding-top","10px");
        element.css("bottom","auto");    
      }
    }
    else {
      element.css("position","relative");
      element.css("top","auto");
      element.css("padding-top","10px");
      element.css("bottom","auto");
    }
  });

  $(window).resize(function(){
    window_height = $(window).height();
    if (window_height > element_height) {
      if (($(document).scrollTop() + element.height()) > ($(document).height() - $("#footer").height() - 9)) {
        element.css("position","absolute");
        element.css("top", "auto");
        element.css("bottom","-150px");
      }
      else if ($(document).scrollTop() > 220) {
        element.css("position","fixed");
        element.css("top","9px");
        element.css("padding-top","0");
        element.css("bottom","auto");
      }
      else {
        element.css("position","relative");
        element.css("top","auto");
        element.css("padding-top","57px"); 
        element.css("bottom","auto");     
      }
    }
    else {
      element.css("position","relative");
      element.css("top","auto");
      element.css("padding-top","57px");
      element.css("bottom","auto");
    }
  });

});