Make jump links between pages work better when there is a fixed header.

beaverbuilder-jump-links.js

// Adapted from http://stackoverflow.com/questions/30293784/smooth-scroll-to-anchor-after-loading-new-page
NERD.ScrollToHashFix = {
    init: function () {
        // to top right away
        if ( window.location.hash ) scroll(0,0); // void some browsers issue
        setTimeout( function() { scroll(0,0); }, 1);

        $(function() {

            // *only* if we have anchor on the url and if it exists on the page.
            if($(window.location.hash).length) {

                var hashPos = $(window.location.hash).offset().top;
                var headerOffset = 100;
                var scrollPos = hashPos - headerOffset;

                // smooth scroll to the anchor id
                $('html, body').animate({
                    scrollTop: scrollPos + 'px'
                }, 1000, 'swing');
            }

        });
    }
},

$(window).load(function(){ // wait for the site to finish loading first.
    NERD.ScrollToHashFix.init();
});