Wordpress fixed widget bar with Jquery

.js

jQuery( document ).ready(function() {
        var fixmeTop = 100;       // get initial position of the element

        jQuery(window).scroll(function() {                  // assign scroll event listener
            var distanceBottom = jQuery(document).height() - (jQuery(document).scrollTop() + jQuery(window).height());

            var currentScroll = jQuery(window).scrollTop(); // get current position

            if (currentScroll >= fixmeTop && distanceBottom > 540) {           // apply position: fixed if you
                jQuery('#secondary').css({                      // scroll to that element or below it
                    position: 'fixed',
                    top: '110px'
                });
            }else if(currentScroll >= fixmeTop && distanceBottom <= 540){
                jQuery('#secondary').css({                      // scroll to that element or below it
                    position: 'absolute',
                    top: parseInt(jQuery('.entry-content').css('height')) - 600,
                });
            } else {                                   // apply position: static
                jQuery('#secondary').css({                      // if you scroll above it
                    position: 'absolute',
                    top: 'unset'
                });
            }

        });
    });