Snippets → jQuery

(function ($) {
    $.fn.fade1by1 = function (options) {
        var opt = $.extend({
                'delay' : 500,
                'speed' : 500,
                'ease' : 'linear'
            }, options);
        var that = this;
        for (var i = 0, d = 0, l = that.length; i < l; i++, d += opt.delay) {
            that.eq(i).delay(d).fadeIn(opt.speed, opt.ease);
        }
    };
})(jQuery);