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Changing img src in a nav page by clicking on home page

I'm pretty new to JS, jQuery and all the others.
I have a navigation bar for an app with in the top a picture that needs to change when I click on a picture/link on my homepage.
HTML for navigation that will need to change
<img class="campus" src="img/Dansaertrond.png">
<h4>Stuvo <span class="light">EhB</br>
Campus</span></h4>
HTML for the homepage where the pictures come from to change
<div class="campus">
<a href="#">
<img class="photo" src="img/Dansaert.png">
</a>
<a href="#">
<img class="photo2 " src="img/kaai.png">
</a>
<a href="#">
<img class="photo" src="img/ttk.png">
</a>
<a href="#">
<img class="photo2 " src="img/RITS.png">
</a>
<a href="#">
<img class="photo" src="img/KCB.png">
</a>
<a href="#">
<img class="photo2 " src="img/jette.png">
</a>
</div>
To explain fast - if you start the app you see your homepage with all pictures, you click one and that picture then appears in the navigation screen, same if you change it again.
The normal things you find to change img src aren't the things I need cause that mostly just changes the picture by clicking on it, which I do not need to.
Does anyone has any idea how to do this / if it's possible?

First, it would be easier to answer if you included some better information about your challenge, maybe some code snippets. Would this answer your question?
Changing the image source using jQuery
Otherwise,
I think what you have can be modelled by three elements. You click on one of the homepage elements and it changes the image source on the nav bar element.
$('#red').click(function() {
$('#nav-img').attr("src","red.png").removeClass('green').addClass('red');
});
$('#green').click(function() {
$('#nav-img').attr("src","green.png").removeClass('red').addClass('green');
});
#red, .red {
background-color: red;
height: 20px;
width: 20px;
}
#green, .green {
background-color: green;
height: 20px;
width: 20px;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="nav-bar">
<img src="red.png" id="nav-img" class="red">
</div>
<div class="home-content">
<img src="red.png" id="red">
<img src="green.png" id="green">
</div>

Instead of getting image after click you can play the image as carousel.
Try this:
Bootstrap Carousel

$(document).ready(function() {
$('div.campus img').on('click', function() {
var newSrc = $(this).attr('src');
$('img.campus').attr('src', newSrc);
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<div class="campus">
<img src="http://www.adweek.com/socialtimes/files/2012/03/The-Reply-Girl.jpg" />
<img src="http://3.bp.blogspot.com/-e3s1wReW3d4/TgYzS8hG1CI/AAAAAAAAABM/NzRYQFTWWbM/s200/kim-kardashian-troy-jensen-nice.jpg" />
<img src="http://slodive.com/wp-content/uploads/2012/10/gossip-girl-hairstyles/gossipgirlhairstyles200.jpg" />
</div>
<hr />
<img class="campus" src="http://lorempixel.com/200/200" />
Make sure the image on which you want the click trigger has the class .trigger, and the image where you want to change the src has the class .target. Or replace those classes by class name you currently use.
$('img.trigger').on('click', function() {
var newSrc = $(this).attr('src');
$('img.target').attr('src', newSrc);
};
Edit: I'll adjust the solution to your code:
$('div.campus img').on('click', function() {
var newSrc = $(this).attr('src');
$('img.campus').attr('src', newSrc);
};
You will probably want to initialize the event handlers when the page has loaded. The common way to achieve this in jQuery is using $(document).ready():
$(document).ready(function() {
$('div.campus img').on('click', function() {
var newSrc = $(this).attr('src');
$('img.campus').attr('src', newSrc);
};
});
Fully working example: http://codepen.io/anon/pen/oXzZBB

Getting a link from another div

I have
<div class="box box1">
<div class="content">
<img a href="http://www.example.com" />
<img src="https://www.google.ie/images/srpr/logo11w.png"</a>
</div>
</div>
What I want to do is make the entire div of box clickable.
I have looked around here in StackOverFlow and seen some great examples but I have tried them and I could not get them to work.
For Example:
$div.next('div.box2').find('a').attr('href', $div.find('a').attr('href'));
Any help would be great on how to do this in jquery

$(".box").click(function(){
window.location=$(".whereeveryourelookingfor").find("a").attr("href");
return false;
});
you can make the mouse pointer also look like the one on href , use the following css
.box{ cursor:pointer; }
http://jsfiddle.net/r9Xhf/

<div class="box box1" style="cursor: pointer">
<div class="content">
<a href="example">
<img a href="http://www.example.com" />
<img src="https://www.google.ie/images/srpr/logo11w.png"</a>
</div></div>
JS
$('.box').click(function(){
window.location.href = "http://www.example.com";
});

JavaScript/jQuery guidance needed

Today I am building my self a vertical navigation menu and I'm wondering how I would go about build a particular feature I was thinking of.
Here is the coding behind my buttons:
html:
<div class="button"><a href="#">
<img src="../images/article.png" />
<p>Articles</p></a>
</div>
<div class="button"><a href="#">
<img src="../images/leaderboards.png" />
<p>Leaderboards</p></a>
</div>
<div class="button"><a href="#">
<img src="../images/events.png" />
<p>Events</p></a>
</div>
<div class="button"><a href="#">
<img src="../images/search.png" />
<p>Search</p></a>
</div>
<div class="button"><a href="#">
<img src="../images/other.png" />
<p>Other/Tools</p></a>
</div>
css:
.button{
border-left:10px solid #e5dad6;
padding-left:5px;
margin-bottom:20px;
width:120px;
height:120px;
text-align:center;
}
My Goal:
Now my goal is to change the image of the relevant buttons when a user hovers over the whole div (button div), now of course I can do this by adding a hover state in css, but that's not what I want to do, because I don't want to just change that particular div.
What I want:
I want it so I can basically say = if .button is being hovered over, then change the img src of something else on the page, NOT change something related to the element being hovered over.

Do something like this with jQuery:
$(document).ready(function() {
var oldSrc = $('.myNewImage').attr('src');
$('.button').hover(function() {
//on hover of your element
$('.myNewImage').attr('src','http://mynewimagesrc.com');
}, function() {
//when the cursor leaves your element
$('.myNewImage').attr('src', oldSrc);
});
});
You'll have to switch out the .myNewImage, class for the actual class of the image on your page but that should work for what you're asking. It also assigned the original source of your image so that you can always return the element back to it.

you may want to check .hover() for jQuery

You can do what you want really easy with jquery.
<div class="button" id="article_button"><a href="#">
<img src="../images/article.png"/>
<p>Articles</p></a>
</div>
$('.button').on('hover', function(){
$('#some_other_element').data('oldimg', $('#some_other_element').attr('src')).attr('src','other_image.jpg');
}, function(){
$('#some_other_element').attr('src', $('#some_other_element').data('oldimg'));
});

Using either jQuery or plain JavaScript to fadeIn and fadeOut

This is the first time I've ever using stackoverflow, so here I go.
I'm creating a website and currently, I have created buttons for the navigation. By default (the homepage) shows a slideshow using JavaScript and this is all contained within a div.
When I click, let's say the 'About Me' page, I want that div to fade out and another div to fade in which will contain an image and text.
Here's my code:
<body>
<div id="top_wrapper">
<a class="button navigation" id="homeBtn">Home</a>
<a class="button navigation" id="aboutBtn">About Me</a>
<a class="button navigation" id="coachBtn">Peronsal, Business and Professional Coaching</a>
<a class="button navigation" id="successBtn">Success Stories</a>
<a class="button navigation" id="workBtn">Community Work</a>
<a class="button navigation" id="charityBtn">Charity</a>
<a class="button navigation" id="contactBtn">Contact Me</a>
</div>
<div id="home">
<div id="sliderFrame">
<div id="slider">
<img src="_images/_image01.jpg" />
<img src="_images/_image02.jpg" />
<img src="_images/_image03.jpg" />
<img src="_images/_image04.jpg" />
<img src="_images/_image05.jpg" />
</div>
</div>
<div id="border">
<img src="_images/_border.png" />
</div>
</div>
<div id="aboutme">
<div id="text">
<p>This is the text</p>
</div>
</div>
</body>
In my example, I want that when the user clicks on the 'About Me' button, the div 'home' fades out and the div 'aboutme' fades in.
I've tried nearly all of the examples on stackoverflow as well as whatever the jQuery/JavaScript websites and Google could throw at me and no luck.

One way could be to do it like so:
$('#aboutBtn').click(function(){
$('#home').fadeOut(300);
$('#aboutme').delay(400).fadeIn(300);
});
Edit: the solution above was more of a quick fix for an individual case, the solution below is the kind of thing you should do instead, especially when you have multiple anchors/divs.
Here's a working jsFiddle example.
HTML:
<a class="buttonNav" target="1">Home</a>
<a class="buttonNav" target="2">About</a>
<a class="buttonNav" target="3">Success</a>
<div id="div1" class="targetDiv">Home Div</div>
<div id="div2" class="targetDiv">About Div</div>
<div id="div3" class="targetDiv">Success Div</div>
CSS:
.targetDiv {
display:none;
color:red;
}
.targetDiv:nth-of-type(1) {
display:block;
}
jQuery:
$(function(){
$('.buttonNav').click(function(){
$('.targetDiv').fadeOut();
$('#div'+ $(this).prop('target')).delay(400).fadeIn();
});
});
This approach would be much cleaner for scaling usage of options, like in your case.

You can fadeout the home div and in callback of this fadeout you can fadein the about me div. Somthing like this:
$('#aboutBtn').click(function(){
$('#home').fadeOut('slow', function(){
$('#aboutme').fadeIn('slow');
});
});
Here is the FIDDLE

Here is an improved example: jsfiddle
This example will allow you using the same div as a container for all links...
Note that you should add a href for your link tags.
Have fun.
jquery:
$('#aboutme').hide();
$('#aboutBtn').click(function(){
$('#home').fadeOut('slow', function(){
$('#aboutme').text('about me text!!!').fadeIn('slow', function(){ });
});
});
$('#homeBtn').click(function(){
$('#home').fadeOut('slow', function(){
$('#aboutme').text('home text button text!!!').fadeIn('slow', function(){ });
});
});
//add other click events for each link.
EDIT: Tune up - and save time
See this jsfiddle
Now you should set only an array key as the same id of the relevant link and type in his text!
have fun

Hide a div and show another div in place of it functionality not working for popup

My project files can be downloaded here: https://rapidshare.com/files/1601614875/projectFiles.zip [if needed:" only 2mb]
I have a webpage and a popup inside the webpage. In the popup there are two images and a heading inside a div, and I want the div when hovered to hide and show another div inside which are the same images larger and a paragraph. I have the very same functionality for the same content in the main webpage and it works perfectly, but in the popup it does not work at all.
my HTML code:
<div class="thumb-list" id="popup-thumb-list">
<div class="actor">
<div class="small-thumb-holder">
<img src="images/actor-01.jpg" width="65" height="50" />
<h3>Lucas Allen</h3>as FIRST MATE KARL-CAPTAIN CARRIBEAN
</div>
<div class="big-thumb-holder" id="big-thumb-holder">
<img src="images/029 Derek_Jeremiah_Reid-ID29597.jpg" width="150" />
<p>Derek Jeremiah Reid as Home Buyer<br>Click to see profile.</p>
</div>
</div>
<div class="actor">
<div class="small-thumb-holder">
<img src="images/actor-02.jpg" width="65" height="50" />
<h3>Lucas Allen</h3>as FIRST MATE KARL-CAPTAIN CARRIBEAN
</div>
<div class="big-thumb-holder" id="big-thumb-holder">
<img src="images/030Rachel_O_meara-ID15405.jpg" width="150" />
<p>Rachel O'Meara as Agent<br>Click to see profile.</p>
</div>
</div>
</div>
Javascript code:
$('.small-thumb-holder').mouseover(function(){
$(this).parent(".actor").css({width:150},100);
$(this).hide();
$(this).next('.big-thumb-holder').show();
});
$('.big-thumb-holder').mouseout(function(){
$(this).parent(".actor").css({width:80},100);
$(this).hide();
$('.small-thumb-holder').show();
})
My attempt which does not work:
<div class="small-thumb-holder" onmouseover="(function(){
$(this).parent(".actor").css({width:150},100);
$(this).hide();
$(this).next('.big-thumb-holder').show();
};">
<a href="" class="actor_thumb">
<img src="images/actor-01.jpg" width="65" height="50" />
</a>
<h3>Lucas Allen</h3>
as FIRST MATE KARL-CAPTAIN CARRIBEAN
</div>
<div class="big-thumb-holder" onmouseout="(function(){
$(this).parent(".actor").css({width:80},100);
$(this).hide();
$('.small-thumb-holder').show();
}">

You need to execute the jQuery code after the popup has been loaded so that the mouseover and mouseout events will bind to the divs. To do so you could wrap the jQuery lines in a function and call if after loading the popup.