sticky floating div inputs

sticky.css

#sticky.stick {
    position: fixed;
    top: 0;
    z-index: 1000; /* Splunk modals are 1050 */
    margin-top: 10px;
}

sticky.js

require([
    'jquery',
    'underscore',
    'splunkjs/mvc',
    'splunkjs/mvc/simplexml/ready!'
], function(
    $,
    _,
    mvc
) {
    function sticky_relocate() {
        var window_top = $(window).scrollTop();
        var div_top = $('#sticky-anchor').offset().top;
        if (window_top > div_top) {
            //$('.splunk-choice-input').css('padding-bottom', '0px');
            //$('.fieldset .element').css('padding-bottom', '0px');
            $('#sticky').addClass('stick');
        } else {
            //$('.splunk-choice-input').css('padding-bottom', '15px');
            //$('.fieldset .element').css('padding-bottom', '10px');
            $('#sticky').removeClass('stick');
        }
    }

    $(".fieldset:first").attr('id', 'sticky').before('<div id="sticky-anchor"></div>');

    $(window).scroll(sticky_relocate);
    sticky_relocate();
})