jQuery(function() {

    // Cache the Window object
    var $window = jQuery(window);

    // Parallax Backgrounds
    // Tutorial: http://code.tutsplus.com/tutorials/a-simple-parallax-scrolling-technique--net-27641

    jQuery('section[data-type="background"]').each(function(){
        var $bgobj = jQuery(this); // assigning the object

        jQuery(window).scroll(function() {

            // Scroll the background at var speed
            // the yPos is a negative value because we're scrolling it UP!
            var yPos = -($window.scrollTop() / $bgobj.data('speed'));

            // Put together our final background position
            var coords = '50% '+ yPos + 'px';

            // Move the background
            $bgobj.css({ backgroundPosition: coords });

        }); // end window scroll
    });

});