data-attribute parallax simulation

$window = $(window);

  $('section[data-type="background"]').each(function() {
      var $scroll = $(this);
      $(window).scroll(function() {
          var xPos = -($window.scrollTop() / $scroll.data('speed'));
          var coords = xPos + 'px ' + 'bottom';
          $scroll.css({ backgroundPosition: coords });
      }); 
  });  

  $('[data-direction="top"]').each(function() {
      var $scroll = $(this);
      $(window).scroll(function() {
          var yPos = -($window.scrollTop() / $scroll.data('speed'));
          $scroll.css("top", yPos + 'px');
      }); 
  }); 

  $('[data-direction="right"]').each(function() {
      var $scroll = $(this);
      $(window).scroll(function() {
          var xPos = -($window.scrollTop() / $scroll.data('speed'));
          $scroll.css("left", -xPos + 'px');
      }); 
  }); 

  $('[data-direction="left"]').each(function() {
      var $scroll = $(this);
      $(window).scroll(function() {
          var xPos = -($window.scrollTop() / $scroll.data('speed'));
          $scroll.css("left", xPos + 'px');
      }); 
  });