Smoth Scroll on Rev Slider - by slidebird

Hi there…

i made an button in rev slider and used the action attribute from the revslider to scroll below the slide… works fine but its not really smooth… it jumps below… i want a smooth scroll i tried

jQuery('body').on('click', 'a.tp-caption', function() {
 
    var $this = jQuery(this),
    href = $this.attr('href');
 
    if(!href || href.charAt(0) !== '#') return;
    var el = jQuery(href);
 
    if(!el.length) el = jQuery('a[name=' + href.substring(1, href.length) + ']');
    if(!el.length) return;
 
    jQuery('html, body').animate({scrollTop: el.offset().top}, 10000);
    return false;
 
});

But didnt work… can you help me with that?

thx