Javascript / HTML banner not working - html

Question

I'm following this tutorial (Removed link as YouTube videos are not allowed on SO).
I can't understand why the banner wont flick through as it should, I have 4 images I intend it to flick through.
Also if anyone does solve this how can I make the images link to another page, e.g is it as simple as adding <a href=.......> in the HTML code?
HTML:
<script type="text/javascript" src:"jquery.js"></script>
<div id="banner">
<img src="images/banner1.jpg" class="active" />
<img src="images/banner4.jpg" />
<img src="images/banner2.jpg" />
<img src="images/banner3.jpg" />
</div>
javascript/jQuery
$(document).ready(function () {
setInterval(function () {
//Get current active image
var active = $('#banner .active');
// If there is another image(object) left then make that image next
// If not, go back to the first image of the banner div
if (active.next().length > 0) var next = active.next();
else var next = $('#banner img:first');
//Get the next image ready by modifying the z-index
next.css('z-index', '2');
//Fade out the active image, then
active.fadeOut(1000, function () {
});
//Move the active image to the back of the pile, show it and remove the active class
active.css('z-index', '1').show().removeClass('active');
//Make the next image the active one
next.css('z-index', '3').addClass('active');
});
}, 3000);
});
CSS
#banner {
position: relative;
margin-left: auto;
margin-right: auto;
height: 350px;
width: 950px;
margin-top: 10px;
}
#banner img {
position:absolute;
z-index:1;
}
#banner img.active {
z-index:3;
}

Answer 1

Right so to start with you don't have your script linked up.
You have:
<script type="text/javascript" src:"jquery.js"></script>
It should be:
<script type="text/javascript" src="jquery.js"></script>
As you have just put jquery.js that means if you homepage (whatever page is using it) is in C:\Users\Me\Documents\Website then jquery.js also needs to be in that same folder.
Then we move to the jQuery, its all ok untill the end of it. You close it with }, 3000);
but then try to close it again using });. The indentation also gives it away.
So when we fix that we get this DEMO HERE