LIB / JQUERY STICKY_ELEMENT

stickyElement.js

    /* {
        $element: $("selector"),
        sidebarInitY: 0,
        parentH: 0,
        containerH: 0,
        containerY: 0,
        headerHeight: 0,
        newHeight: 0
    } */
    var stickyScroller = function (config) {
        var stickyScroller = this
        // Sidebar sticky
        $(document).ready(function() {
            $(window).scroll(function(e) {
                config.$element.css(
                    stickyScroller.newY({
                        offsetY:   config.containerY,
                        elH:       config.parentH,
                        minY:      config.containerY,
                        maxY:      config.containerY + config.containerH,
                        winMinY:   0,
                        winMaxY:   0
                    })
                )
            });
        });
    }

    /* {
        offsetY: '.',
        elH: '.',
        minY: '.',
        maxY: '.',
        winMinY: '.',
        winMaxY: '.',
    } */
    stickyScroller.prototype.newY = function(config) {
        var windowTop = $(window).scrollTop(),
            newY = posTop = windowTop + config.winMinY,
            property = 'top',
            style = {};

        if( (windowTop + config.winMinY) > config.minY              // Below container top
         && (windowTop + config.elH + config.winMaxY) < config.maxY)       // Above container bottom
        {
            console.log("Passed MINIMUM height");
            style = {
                bottom: 'auto',
                top: windowTop + config.winMinY - config.offsetY
            }
        }
        else
        if(windowTop + config.winMinY < config.minY) {           // Before container top
            console.log("NOT past MINIMUM height");
            style = {
                bottom: 'auto',
                top: 0
            }
        }
        else
        if(windowTop + config.elH + config.winMinY > config.maxY - config.winMaxY) {     // Beyond container bottom
            console.log("Past MAX height");
            style = {
                top: config.maxY - config.minY - config.elH,
                bottom: 'auto'
            }
        }

        return style;
    }

    // SiteNotice sticky scrolling
    // var siteNotice = new stickyScroller({
    //     $element: $(".js-snap"),
    //     sidebarInitY: 0,
    //     parentH: $(document).height(),
    //     containerH: $(document).height(),
    //     containerY: $(document).height(),
    //     headerHeight: $(".global-header").height(),
    //     newHeight: 0
    // })