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Show div display none to block after pass another div then use onclick to display none again

I'm trying to show a fixed div for some popup ad when scroll and pass another div on the page, and then use onclick button to hide it again, and I want this to load one time per page so the visitor if gone to the top of page and scrolled to the div again it will not appear again .. and all this work on mobile screens only!!
I use #onthediv just as a bridge without content. I tried many codes but no success.I hope it is clear what I really need :)
<div id = "onthediv"></div>
<div id="mydiv" style="position: fixed; z-index:9999; left: 0px; top: 35%;">
<button class="btn" style="position:absolute;left:0px;top:0px;z-index:999;"
onclick="document.getElementById('mydiv').style.display='none'">
<img src="CloseBtn.png" width="40" height="38">
</button>
<!--popup image -->
</div>
css
.mydiv { display: none;
}
$(document).ready(function() {
$("#mydiv").hide(); //hide your div initially
var topOfOthDiv = $("#onthediv").offset().top;
$(window).scroll(function() {
if($(window).scrollTop() > topOfOthDiv) { //scrolled past the other div?
$("#mydiv").show(200); //reached the desired point -- show div
}
});
});
tried also
document.getElementById("target-id").style.display = "block";

One page website change menu color each section

I'm currently building a one page website with a fixed navigation menu (with a blue background). This one page website has 4 sections, 2 with a blue background and 2 with a white background.
My idea to do with this menu is when i scroll (not mouse hover) over a blue section, the menu background turns white. and when i scroll over a white section, the background changes back to blue.
An example can be found here.
(Not my site, but look at the changing color of the menu while scrolling)
My HTML code looks like this:
<div class="subMenu" >
<div class="inner">
Home
Over mij
Kennis
Projecten
Contact
</div>
</div>
<div class="section s1">
<div class="inner">
<h1>Section 1</h1>
</div>
</div>
<div class="section s2">
<div class="inner">
<h1>Section 2</h1>
</div>
</div>
<div class="section s3">
<div class="inner">
<h1>Section 3</h1>
</div>
</div>
<div class="section s4">
<div class="inner">
<h1>Section 4</h1>
</div>
</div>
Is there a simple way to do this?
Thanks in advance.

I've found/created a temporary fix for my problem.
$(window).scroll(function(e) {
var s1 = $('.s1'),
s2 = $('.s2'),
s3 = $('.s3'),
s4 = $('.s4'),
menu = $('.menu'),
diff = s1[0].offsetTop - window.pageYOffset;
diff2 = s2[0].offsetTop - window.pageYOffset;
diff3 = s3[0].offsetTop - window.pageYOffset;
diff4 = s4[0].offsetTop - window.pageYOffset;
if(diff < 100) {
$(".menu").addClass("white");
$(".menu").removeClass("blue");
}
if(diff2 < 100) {
$(".menu").addClass("blue");
$(".menu").removeClass("white");
}
if(diff3 < 100) {
$(".menu").addClass("white");
$(".menu").removeClass("blue");
}
if(diff4 < 100) {
$(".menu").addClass("blue");
$(".menu").removeClass("white");
}
if(diff > 100) {
$(".menu").removeClass("white");
$(".menu").removeClass("blue");
}
});
JSFIDDLE DEMO

Not sure exactly what you want to do but, unless you want to change the background of another element (other than the one you're mousing over) an easy way is to use the :hover css selector.
like this:
.inner:hover{
background-color: blue;
}
this will make changes to the class when you're hovering over.
If however, you want to make changes to a different element, then you need to attach an event handler through javscript:
(rough code, not tested)
var menuitem = document.getElementById('menu_to_turn_other_stuff_blue'); // can use getElementsByTagName here, but you'll have to walk the HTMLCollection returned
var otheritem = document.getElementById('other_stuff_to_turn_blue');
menuitem.onmouseover = function(){ otheritem.style.backgroundColor = "blue"; } // ideally, you want to use addEventListener, not directly modifying the attribute this way, but either will work - addEventListener is however the recommended way
you can use onmouseout or the proper event handler through addEventListener to change the color back if necessary. The CSS solution will work automatically for this.

Take a look at the source of the example website you gave: view-source:http://www.franzsans.de/
section id="info" class="bg-white b-blue f-grey"

Just as quick example with jQuery a Fiddle
$(".s1,.s2").hover(function ()
{
$(".subMenu").removeClass("white").addClass("blue");
});
$(".s3,.s4").hover(function ()
{
$(".subMenu").removeClass("blue").addClass("white");
});
$(".s1,.s2,.s3,.s4").mouseleave(function ()
{
$(".subMenu").removeClass("blue").removeClass("white");
});
Example CSS:
body {
background-color:yellow;
}
.subMenu a {
color:black;
}
.s3, .s4, .white {
background-color:white;
}
.s1, .s2, .blue {
background-color:blue;
}
For reference: http://api.jquery.com/addclass/, http://api.jquery.com/removeClass/, http://api.jquery.com/hover/, http://api.jquery.com/mouseleave/
Update for updated question: Previously question was to change background-color of menu in case scrolling over section which was misunderstood as hover. As question was clarified, approach would be e.g. to add jquery inview and to change the background-color when the white or blue section is in view following the instructions provided on given link (as I don't want to just copy them from there and final steps could be done by OP).
Just as example for using inview new Fiddle with inview. No need to style it, just expand the result window above the 1st section and scroll down; you'll notice that color will change according to the section which is in view. Added following for that: the mentioned inview.js and
$('.s1,.s2').bind('inview', changeBlue);
$('.s3,.s4').bind('inview', changeWhite);
where the changeBlue() and changeWhite() functions are just the hover-events from above.

Hidden div is moving when it's shown

+++++i add mention+++++
thanks guys for your answers,
but, i think, i missed something to write more.
when i click the button to show the div(#pop), it works right at the scroll on the top.
but, when i go down the scroll, the div(#pop) goes up in the window(height:0) not in "bottom:10%" like at the scroll on the top.
so, i'm trying your answers now, but, i'm not succeed yet T_T HELP!! :)
=================================================================================
Here are my codes.
I have a floating menu and one button of them works for showing a div id = pop, which is floating too.
I want to hide the div #pop when window starts, and when the button's clicked, it shows.
So I added codes display:none to hide, but when i click the button to show the div #pop, the div #pop is anywhere, not in bottom: 10% in CSS.
HTML
<div class="menu">
<img src="btnUp.png"><br/>
<img src="btnMe.png" id="pop_bt"><br/>
<a href="#scrollbottom">
<img src="btnDown.png">
</a>
</div>
<div id="pop">
<div>
POP UP
</div>
</div>
CSS
#pop{
display: none;
width: 300px;
height: 400px;
background: #3d3d3d;
color: #fff;
position: absolute;
bottom :10%;
left: 30%;
z-index: 3;
}
Javascript
$(document).ready(function(){
var boxtop = $('.menu').offset().top;
$(window).scroll(function(){
$('.menu').stop();
$('.menu').animate({"top": document.documentElement.scrollTop + boxtop}, 800);
});
});
$(document).ready(function() {
$('#pop_bt').click(function() {
$('#pop').show();
});
$('#pop').click(function() {
$('#pop').hide();
});
});
$(document).ready(function(){
var boxtop = $('#pop').offset().top;
alert(boxtop);
$(window).scroll(function(){
$('#pop').stop();
$('#pop').animate({"top": document.documentElement.scrollTop + boxtop}, 800);
});
});
Actually, I'm not a programmer, just a designer, so I'm very fool of HTML/CSS/Javascript.
Can anyone help me?

Display none is removing your button from the layout.
Same on .hide().
Use opacity 0 to hide the dig but keep it in your browser.

In the absence of a fiddle, I can do some guess work only. Looks like the line below is the problem:
$('#pop').animate({"top": document.documentElement.scrollTop + boxtop}, 800);
It sets a top value and moves the layer to some other place. It should work fine if you remove that.

use this...
$(document).ready(function()
{
$("#pop").hide();
$("#button_id").click(function()
{
$("#pop").show();
});
});
is this you actually need?

Collapse/Expand a content box with a toggle

I go right to the point, I have a few boxes that I want them to be expanded and collapsed with a toggle located in their headers.
This toggle is an anchor tag which has a sprite background, the top part of this sprite image is pointing at top, and bottom section is pointing at down. You can guess what they mean and I want their state to be changed (first one for collapse and second one for expand)
The structure of the boxes are something like this :
<section class="box2">
<header class="box-head">
<div class="box-title fr">
<span class="box-icon"></span>
<h3 class="box-title-text">Title Title</h3>
</div>
<a class="box-toggle fl active" href="#">A</a>
<br class="cfx" />
</header>
<div class="box-content">
<img src="img/chart-1.png" alt="" />
//Content or collapsing data goes here
</div>
</section>
And I used one of the most straight forward ways to achieve this effect. You can see the following CSS and jQuery code below. (I chose active class as default when the icon is pointing at top)
JS :
<script type="text/javascript">
$("a.box-toggle").toggle(function(){
$(this).addClass("active");
}, function () {
$(this).removeClass("active");
});
//Slide up and down on click
$("a.box-toggle").click(function(){
$(this).next("div.box-content").slideToggle("slow");
});
});
</script>
CSS :
.widget-toggle {
display: block;
overflow: hidden;
text-indent: -9999px;
width: 18px; height: 9px;
margin-top: 15px;
margin-left: 13px;
background: url(../img/sidebar-arrows.png) no-repeat 0 -18px;
}
.widget-toggle.active {
background: url(../img/sidebar-arrows.png) no-repeat 0 0;
}
Thanks for your huge help :)
Edit No. #1 :
Thanks to #Recode , their tip worked just fine, But according to what I explained and you can see in this picture. I wanna show the state of this with an Icon
Active is pointing at top and Inactive is pointing at bottom, when I want the box to be collapsed I'm showing "Active" and when I want the box to be expanded I'm showing "Inactive" .
With this code I managed to show active at default (I set the class of each box to active manually, if there is a better way to set the default class to active or whatever else please note.)
When I click on it, box collapses and the Icon transitions to Inactive state. And When I click again box expands but the Icon stays in the same state (Inactive and pointing at bottom).
And after clicking :
Here is the Code :
$("a.box-toggle").click(function(){
$(this).addClass("active");
}, function () {
$(this).addClass("inactive");
});
Thanks a lot, Again.

Just use this:
$(document).ready(function() {
//Slide up and down on click
$("a.box-toggle").click(function(){
$(this).toggleClass('inactive');
$(this).parent().next("div.box-content").slideToggle("slow");
});
});
http://jsfiddle.net/Recode/DLxaB/
updated fiddle: http://jsfiddle.net/Recode/DLxaB/1/

Try this: FIddle
jQuery code:
$("a.box-toggle").on('click', function () {
$('div.box-content').slideToggle(200).toggleClass('active');
});
.slideToggle() .toggleClass()

Finding the next hidden div and showing it with a jQuery selector

I'm building a slideshow in jQuery that allows the user to see four images, and page through them, forwards and backwards by appending a new div with the image to the bottom via .load, and then hiding the top div. I'm very new to programming.
I'm having trouble working out a selector to allows the user to go "back" showing the next hidden div, after the first shown div, and hiding the last showing div - faux code example below.
<div class="slideShow" >image one (display = none)</div>
<div class="slideShow" >image two (display = none)</div>
<div class="slideShow" >image three </div>
<div class="slideShow" >image four </div>
<div class="slideShow" >image five </div>
<div class="slideShow">image six </div>
<a href="#" class="scrollUp" >Scrollup</a>
<a href="#" class="scrollDown" >ScrollDown</a>
Jquery to load a new image and attach to the bottom, and hide the first div currently displaying.
$('.scrollDown').click(function() {
$('.slideShow:last').after('<div class="slideShow"></div>'); // add a new div to the bottom.
$('.appendMe:last').load('myimagescript.py'); // load in the image to the new div.
// here I need to find a way of selecting in this example the first shown image (image three) and applying a .slideUp(); to it
});
Jquery to allows the user to go back to an image that they have previously seen and hide the last shown div at the bottom
$('.scrollUp').click(function() {
// here I need to find a way of selecting in this example the first hidden div (image two) after the first shown div (image three) and applying a slideDown(); to it.
$('.slideShow:last').slideUp(); // hide the last image on the page - trouble is what happens if they user now clicks scrollDown - how do I reshow this div rather than just loading a new one?
});

I dont quite understand correctly, however this info may help...you need to match the first visible div then use .prevAll() and filter to get the hidden sibling
$('div.slideShow:visible:first').prevAll(':hidden:first').slideDown();

I've spent hours today on this site trying to do something very similar to what was posted in this question.
What I have is Previous | Next links navigation doing through a series of divs, hiding and showing.
Though what I ended up with was different than the answer here....this was the one that most got me where I needed to be.
So, thanks.
And in case anyone is interested, here's what I did:
<script language="javascript">
$(function() {
$("#firstPanel").show();
});
$(function(){
$(".nextButton").click(function () {
$(".panel:visible").next(".panel:hidden").show().prev(".panel:visible").hide();
});
});
$(function(){
$(".backButton").click(function () {
$(".panel:visible").prev(".panel:hidden").show().next(".panel:visible").hide();
});
});
</script>
<style type="text/css">
.defaultHidden { display: none; }
.navigation { display: block; width: 700px; text-align: center; }
#contentWrapper { margin-top: 20px !important; width: 700px; }
.nextButton { cursor: pointer; }
.backButton { cursor: pointer; }
</style>
<div class="navigation">
<span class="backButton"><< Previous</span> | <span class="nextButton">Next >></span></button>
</div>
<div id="contentWrapper">
<div id="firstPanel" class="panel defaultHidden">
<img src="images/quiz/Slide1.jpg" width="640" />
</div>
<div class="panel defaultHidden">
<h1>Information Here</h1>
<p>Text for the paragraph</p>
</div>
<div class="panel defaultHidden">
<h1>Information Here</h1>
<p>Text for the paragraph</p>
</div>
<div class="panel" style="display: none;">
<img src="images/quiz/Slide4.jpg" width="640" />
</div>
<div class="panel defaultHidden">
<h1>Information Here</h1>
<p>Text for the paragraph</p>
</div>
<div class="panel defaultHidden">
<img src="images/quiz/Slide6.jpg" width="640" />
</div>
Repeat ad naseum...
</div>

a shot in the dark but...
selecting the first shown div and sliding it up
$('.slideShow:visible:first').slideUp();
selecting the first hidden div after the first shown div and sliding it down...
$('.slideShow:visible:first').next('.slideShow:hidden').slideDown()
psuedo selectors FTW!

Something like the following should do the trick
$(function() {
$(".scrollUp").click(function() {
//Check if any previous click animations are still running
if ($("div.slideShow:animated").length > 0) return;
//Get the first visible div
var firstVisibleDiv = $("div.slideShow:visible:first");
//Get the first hidden element before the first available div
var hiddenDiv = firstVisibleDiv.prev("div.slideShow");
if (hiddenDiv.length === 0) return; //Hit the top so early escape
$("div.slideShow:visible:last").slideUp();
hiddenDiv.slideDown();
});
$(".scrollDown").click(function() {
if ($("div.slideShow:animated").length > 0) return;
var lastVisibleDiv = $("div.slideShow:visible:last");
if (lastVisibleDiv.next("div.slideShow").length === 0) {
//No next element load in content (or AJAX it in)
$("<div>").addClass("slideShow")
.css("display", "none")
.text("Dummy")
.insertAfter(lastVisibleDiv);
}
$("div.slideShow:visible:first").slideUp();
lastVisibleDiv.next().slideDown();
});
});
Only thing that this solution does is check if an element that was previously invisible is now being animated. This solves some of the problems regarding multiple clicks of the links that occur before the animations have completed. If using AJAX you'd have to do something similar (e.g. turn a global variable on / off - or just disable the scroll down link) to avoid multiple requests being made to the server at once...