scrollLoad.js

!(function(factory) {
    if (typeof define === "function" && (define.amd || define.cmd) && !jQuery) {
        define(["jquery"], factory);
    } else if (typeof module === "object" && module.exports) {
        module.exports = function(root, jQuery) {
            if (jQuery === undefined) {
                if (typeof window !== "undefined") {
                    jQuery = require("jquery");
                } else {
                    jQuery = require("jquery")(root);
                }
            }
            factory(jQuery);
            return jQuery;
        };
    } else {
        factory(jQuery);
    }
})(function($) {
    $.fn.scrollLoad = function(load, opt) {
        return this.each(function() {
            var $this = $(this);
            var oWrap = $this.get(0);

            $this.on("scroll", function() {
                if (
                    oWrap.scrollHeight - oWrap.scrollTop ===
                    oWrap.clientHeight
                ) {
                    load();
                }
            });
        });
    };
});