// side nav scrolls with site
  function moveScroller() {
    var a = function() {
      var b = $(window).scrollTop();
      var d = $("#scroller-anchor").offset({scroll:false}).top;
      var c = $("#scroller");
      var e = $(document).height()-$("#footer").height()-$("#scroller").height();
      if (b>=e) {
        c.css({position:"fixed",top:(e-b)+"px"});
      } else {
        if (b>d) {
          c.css({position:"fixed",top:"20px"})
        } else if (b<=d) {
          c.css({position:"relative",top:"0px"})
        }
      }
    };
    $(window).scroll(a);
    a();
  }