// ===== Scroll to Top ==== 
jQuery(window).scroll(function() {
    if (jQuery(this).scrollTop() >= 50) {        // If page is scrolled more than 50px
        jQuery('#return-to-top').fadeIn(200);    // Fade in the arrow
    } else {
        jQuery('#return-to-top').fadeOut(200);   // Else fade out the arrow
    }
});
jQuery('#return-to-top').click(function() {      // When arrow is clicked
    jQuery('body,html').animate({
        scrollTop : 0                       // Scroll to top of body
    }, 500);
});