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Navbar hide on scroll down, shows on scroll up but keep mobile full page menu

I have a navbar that hides when I scroll down and shows up when I scroll up. That works fine.
But on smaller screens I have a full width menu that expands with a hamburger toggle and when I scroll even then hides. Is there a solution to fix that?
I also wonder if the navbar always could be visible when it's on top of the page.
Thanks on behalf.
My website
// detect scroll top or down
if ($('.smart-scroll').length > 0) { // check if element exists
var last_scroll_top = 0;
$(window).on('scroll', function() {
scroll_top = $(this).scrollTop();
if(scroll_top < last_scroll_top) {
$('.smart-scroll').removeClass('scrolled-down').addClass('scrolled-up');
}
else {
$('.smart-scroll').removeClass('scrolled-up').addClass('scrolled-down');
}
last_scroll_top = scroll_top;
});
}

Found the solution:
// detect scroll top or down
if ($('.smart-scroll').length > 0) { // check if element exists
var last_scroll_top = 0;
$(window).on('scroll', function() {
scroll_top = $(this).scrollTop();
if(scroll_top > last_scroll_top && last_scroll_top > 40) {
$('.smart-scroll').removeClass('scrolled-up').addClass('scrolled-down');
}
else {
$('.smart-scroll').removeClass('scrolled-down').addClass('scrolled-up');
}
last_scroll_top = scroll_top;
});
}
$(document).ready(function(){
$(".navbar").on('shown.bs.collapse', function(){
$('.smart-scroll').removeClass('scrolled-down').addClass('scrolled-no');
});
$(".navbar").on('hidden.bs.collapse', function(){
$('.smart-scroll').removeClass('scrolled-no').addClass('scrolled-down');
});
});

Jquery mobile sticky header

I have a jquery mobile header div (data-role="header" data-position="fixed") with two toolbars inside in a layout like this:
_____________________
|XXXXXXXXXXXXXXXXXXX|
|YYYYYYYYYYYYYYYYYYY|
and I want to reproduce the effect of WhatsApp, where scroll down hides toolbar XXXXXXXX and scroll up shows toolbar XXXXXXXXXX. Toolbar YYYYYY always visible.
By using window.onscroll this can be achieved by adding/removing a class with top:-50px; upon scroll down/scroll up.
It works, however, it works only when the page is loaded for the first time or it is reached with a link having rel=external. In all other cases, it is impossible to see the effect of the added class. I have also tried .addClass("sticky").enhanceWithin() with no effect.
Any suggestion to make this to work every time?
Here the code:
var didScroll = false;
var lastScrollTop = 0;
var delta = 5;
var navbarHeight = 20;
$(document).on("scroll", function(event){
didScroll = true;
});
setInterval(function() {
if (didScroll) {
hasScrolled();
didScroll = false;
}
}, 250);
function hasScrolled() {
var currentScroll = $(this).scrollTop();
if(currentScroll >= 200) {
$("#scrollToTop").show();
} else {
$("#scrollToTop").hide();
}
if(Math.abs(lastScrollTop - currentScroll) <= delta)
return;
if (currentScroll > lastScrollTop && currentScroll > navbarHeight){
$('#PageHeader').removeClass('nav-down').addClass('sticky');
} else {
if(currentScroll + $(window).height() < $(document).height()) {
$('#PageHeader').removeClass('sticky').addClass('nav-down');
}
}
lastScrollTop = currentScroll;
}

I hope my fiddle will help you out:
[http://jsfiddle.net/Lfve19u0/]
Ramon.

Make a sticky sidebar?

I want to make my sidebar sticky on my webpage. Just click on a article like this one. On the right side you can see the sidebar. I want that the sidebar comes down if the user slides down and stops at #abspann. But if the user scrolls up again the sidebar should come up as well and stop at the original place.
I already tried this code which can be found here but it isn't working on my website... Can somebody help me please or tell me what I need to do?
Here the code:
<script>
jQuery(function(){
var sidebar = jQuery('#sidebar-wrap'),
nav = jQuery('.sidebar-content'),
startPosition = jQuery('#sidebar-wrap').offset().top,
stopPosition = jQuery('#abspann').offset().top - nav.outerHeight();
jQuery(document).scroll(function () {
//stick nav to top of page
var y = jQuery(this).scrollTop()
if (y > startPosition) {
nav.addClass('sticky');
if (y > stopPosition) {
nav.css('top', stopPosition - y);
} else {
nav.css('top', 0);
}
} else {
nav.removeClass('sticky');
}
});
});
</script>

You'll need to locate ur '$window' position by declaring
var $window = $(window).scrollTop();
Then, you can check if the $window has scrolled passed the point u want, like so:
if (height > 0) {
$('.sidebar-content').addClass('sticky');
} else {
$('.sidebar-content').removeClass('sticky');
}
Keep it simple!

found this thing, its working detection if its up or down. the rest you can just with addclass and remove class.
var lastScrollTop = 0;
$(window).scroll(function(event){
var st = $(this).scrollTop();
if (st > lastScrollTop){
alert("I am an alert box!");
} else {
alert("asfasfasfasf!");
}
lastScrollTop = st;
});
I did put alert boxes to check if it works quickly, so be aware of the spams :D

Tested this in your fiddle and seems to work a treat you just need to make a few amendments to your original code:
var $navWrap = $('#navWrap'),
$nav = $('nav'),
startPosition = $navWrap.offset().top,
stopPosition = $('#stopHere').offset().top - $nav.outerHeight();
$(document).scroll(function () {
//stick nav to top of page
var scrollTop = $(this).scrollTop()
if (scrollTop > startPosition) {
$nav.addClass('sticky');
if (y > stopPosition) {
$nav.css('top', stopPosition - y);
} else {
$nav.css('top', 0);
}
} else {
$nav.removeClass('sticky');
}
});

No js is required. Css only : position:fixed;
https://developer.mozilla.org/en-US/docs/Web/CSS/position#Fixed_positioning
https://caniuse.com/#search=fixed

How to show and hide menu based on start and scroll

I have two menus on a page, I am trying to show the one when the page is loaded and the other when there is a scroll.
This is my page Link
I would like to show the white part when position is at the top
and the blue part when there is a scroll past the top position
This is what am trying presently
<script type="text/javascript" src="//code.jquery.com/jquery-git.js"></script>
<script type='text/javascript'>//<![CDATA[
$(function(){
// Hide Header on on scroll down
var didScroll;
var lastScrollTop = 0;
var delta = 5;
var navbarHeight = $('header').outerHeight();
$(window).scroll(function(event){
didScroll = true;
});
setInterval(function() {
if (didScroll) {
hasScrolled();
didScroll = false;
}
}, 250);
function hasScrolled() {
var st = $(this).scrollTop();
// Make sure they scroll more than delta
if(Math.abs(lastScrollTop - st) <= delta)
return;
// If they scrolled down and are past the navbar, add class .nav-up.
// This is necessary so you never see what is "behind" the navbar.
if (st > lastScrollTop && st > navbarHeight){
// Scroll Down
$('header').removeClass('nav-bar-below op-page-header cf').addClass('banner include-nav');
} else {
// Scroll Up
if(st + $(window).height() < $(document).height()) {
$('header').removeClass('banner include-nav').addClass('nav-bar-below op-page-header cf');
}
}
lastScrollTop = st;
}
});//]]>
</script>
can some one please help its not working for me

You can just detect if the scroll is at the top of the page or not whenever scroll event fired. if yes, show white header, and vice versa
$(window).scroll( function() {
var scrollPosition = $(window).scrollTop();
if(scrollPosition === 0) {
//show white header
}
else {
//show blue header
}
}
Of course you have to make sure when page first load, it show the white one first (use css). since the code above won't run Until user do scroll (fire this event)
*EDIT
for this :
"and the blue part when there is a scroll past the top position"
you can try this plugin
http://stickyjs.com/

sample code for fix the menu at top position.
$(document).scroll(function() {
var y = $(document).scrollTop()
var header = $('.include-nav');
var blue-menu = $('.cf');
var screenHeight = header.height();
if (y >= screenHeight) {
blue-menu.css({
position : "fixed",
"top" : "0",
"left" : "0"
});
header.css("position", "relative");
} else {
blue-menu.css("position", "relative");
}
});

Event scroll up and fixed header jquery

I have a function
$(document).ready(function () {
var lastScroll = 0;
$(window).scroll(function(event){
var st = $(this).scrollTop();
if ((lastScroll - st) == 5) {
$("header").css("position", "fixed");
}
else {
$("header").css("position", "absolute");
}
lastScroll = st;
});
});
But I want, when I scroll up on 5px, header again shows.
How I can follow event scroll up 5px?

You're updating your lastScroll too often, to make sure it has scrolled past a certain delta (in your case 5px) you should include that clause before checking if the user has scroll up or down.
This tutorial may help you, but I also created a fiddle with an updated version of your code.
But it would go like this:
$(document).ready(function () {
var lastScroll = 0;
$(window).scroll(function(event){
var st = $(this).scrollTop();
// Make sure they scroll more than delta
if(Math.abs(lastScroll - st) <= 5)
return;
if (st < lastScroll) {
$("header").css("position", "fixed");
} else {
$("header").css("position", "absolute");
}
lastScroll = st;
});
});