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Image scaling size dependent on browser size

Using this site as an example : http://www.reebok.com/en-GB/
The header div height adjusts dependent on the size of the browser, and the inner content has 100% height & width.
Is this controlled by javascript of can this be done solely with CSS?

You can only do this with the help of html & css. Write like this:
img{
width:100%;
height:auto;
}
check this http://jsfiddle.net/e8V47/

In your page, it's actually Javascript which is used.
The height of the container is modified inline (the style attribute)
<div class="module module-hero use-full-width displayed" data-module="Hero" style="height: 232px;">
It's however possible to do a similar thing with CSS, using % in height. For example :
.module{
height:40%; // A percentage relative to the parent element
}

the image in your example is adjusting by browser, it's in , if you only set up the width or height, the browser will adjusts another automatically.

how to change css img element with javascript

I would like to change the CSS using javascript so that I can dynamically adjust the height of a single image on my web page. This is being done so that the image will fit nicely in the viewable screen no matter what the screen size.
My CSS
.wrapper img {
height: 630px;
}
My Div
<div class="wrapper" id="imageDiv"></div>
What javascript code should I use to change the CSS height to say 200px.
Thank you.

Why not just set the height in percentage if the goal is to autoadjust based on viewport height etc:
.wrapper img {
height: 100%;
}
Anyway:
document.getElementById('imageDiv').style.height = '200px';

Try this :
document.getElementById("imageDiv").style.height="200px";
(this would only change it for that one element.)

Using JQuery, you could just put inside the method that you want:
$('img.wrapper').css('height','200px');

My webpages div doesnt set dynamic width correctly

I have 2 toolbars, 1 of each side of the screen, and a main content area. I dont want it to have to sidescroll cause that is pathetic, so i was trying to figure out if someone could help me set it up.
My current attemp was:
$("#main").css("width", window.outerWidth - $("#t1").width() - $("#t2").width());
The issue is that it is too big still because of margins. Instead of me doing width, should i do outerWidth, similar to how i did window, or is there a jquery command which will do just that?
Thanks
here is a basic fiddle: it is set up differently, but the idea is there. I just am unsure as to how to do it. http://jsfiddle.net/fallenreaper/DfZx7/
Upon tinkering deeper and deeper with my fiddle, i am fairly certain i figured it out in the example i had given. derp Standby while i look and see if i can apply the same thing to my code.
The sample did not work with my code, but border was set to 2px around, for both main and attributes. Deducting 8 pixels resolves.

You don't need JavaScript to avoid scrollbars. It's a layout width two fixed-width columns and a liquid one.
Here is the "skeleton" of your layout in a responsive way:
<div id="window">
<div id="column-sx"></div>
<div id="main"></div>
<div id="column-dx"></div>
</div>​
CSS:
#window {
width:100%;
overflow:hidden;
}
#column-sx {
width:54px;
float:left;
}
#column-dx {
width: 140px;
float:right;
}
#main {
width:100%;
float:left;
margin-right:-194px; /* left + right col width */
}
#main > * {
margin-right:194px; /* left + right col width */
}
This way it will never "break" nor cause an horizontal scrollbar.
Anyway, probably you want to set a min-width for #main contents, and add another container for contents instead of targeting them with > *
Check this fiddle with your code revised

Off the top of my head, i would think outerWidth would work. If it doesnt, you can find the margin value via the .style attribute - but thats not ideal.
One thing you should be aware of is window resize if your setting your widths dynamically and you truely hate horizontal scrolling. You could put the above function also in the $().resize() function to ensure the widths are always within the window and complement this with css min-width so it doesnt go too small.

CSS webkit overflow hidden and HTML element height

http://dev.anuary.com/1f1715ac-ad96-536a-a462-74381c7a2baf/test.html
http://dev.anuary.com/1f1715ac-ad96-536a-a462-74381c7a2baf/test2.html
test2.html is the expected behaviour. However, it does not implement test.html CSS body {overflow: hidden;}. The latter is needed to prevent WekKit from overscrolling.
Essentially, I need a page with WebKit overscrolling disabled, with an element in DOM width and height 100% (100% meaning window size) and overflow-y: scroll. The only workaround that I managed to figure out is to use JavaScript to give fixed height to the or the wrapping element. Though, preferably I am looking for a solution that doesn't involve JS.

You need to set height: 100%; on html and body otherwise they will be much larger than the visible window size.
Demo: http://jsfiddle.net/ThinkingStiff/8ejtP/
html, body {
height: 100%;
}

Select different CSS style sheet for different browser window sizes?

I have my div (#box) centering in the middle of the browser window which is groovy for browsers that are 600px vertical or taller. If the window is smaller than that, content at the top of the div gets sheared off, and the scroll bar only scrolls the page up (when I pull the scroll bar down), so it's impossible to see anything hidden above the top edge of the window even when the scroll bar is at its top-most position.
Here's how I center my div--you can see why the top of the div gets cut off in smaller browser windows.
{position: absolute; top: 50%; left: 50%; width: 1930px; height: 607px; margin-left: -965px; margin-top: -302px;}
(It's really wide to accommodate the animation working on even the widest screens--the width isn't an issue.)
Here's a page to look at: http://ianmartinphotography.com/test-site/
And my CSS: http://ianmartinphotography.com/test-site/css/basic.css
This is easily fixed in my CSS style sheet, but it seems like I can't have it both ways for monitors greater than 600px and monitors smaller than 600px.
So, how do I detect a browser window size and then select one of two different CSS style sheets? One for small windows, another for larger windows? Is there a jquery script that will do this for me?
Or, is there another way to make my div center in the middle of the browser window with CSS that will allow scrolling so that the top of the div can be accessed on smaller browser windows?
Thanks for your thoughts!

#media queries are my preference (saw that you don't like them as a solution per se), but they really could do the trick - especially if you adjust your css a little to accommodate.
<link...media="only screen and (max-height: 600px)" href="small-device.css" />
small-device.css = div.container { ... height:500px; margin:50%; ...}
<link...media="only screen and (min-height: 601px)" href="big-device.css" />
big-device.css = div.container {... height:600px; margin:50%; ...}
You may also have a little more luck by removing your absolute positioning and taking advantage of normal document flow. It would help you to add things like { overflow-y:scroll; }
to those hidden-by-screen-height divs.
I think in the end, if you're trying to design around hand-held devices, you'll need media queries to some extent. My Android screen (for example) has 3 display options (low, medium, hi def). All 3 crop pages differently.

You can determine window size by Jquery
$(window).width();
$(window).height();
or
$(document).width();
$(document).height();
then change css
$("link").attr("href", "blue.css");
Something like this:
$(document).ready(function(){
if($(document).height() > 600 or $(window).height() > 600){
$("link").attr("href", "600+.css");
} else {
$("link").attr("href", "600-.css");
}
});

A solution that works in all major browsers. No JS needed. Vertically/horizontally centered, scrollable, sticks to the top when content is larger than viewport.
HTML:
<div id="body">[your content goes here]</div>
CSS:
html, body {
width: 100%;
height: 100%;
}
html {
display: table;
}
body {
display: table-cell;
vertical-align: middle;
}
#body {
margin: 0 auto;
}
Don't forget to apply the last rule, it will actually perform the horizontal centering.

Just did a bit of googling and found this:
http://www.ilovecolors.com.ar/detect-screen-size-css-style/
does that work for you?

Try the Less CSS Framework: http://lessframework.com/,
You do not need JavaScript, but rather you can use CSS #Media to set styles based on resolution/ screen size.
Best of luck

Use the following JavaScript conditional to detect screen size.
function x() will handle inserting the CSS link in the <head> tag. All you need to do is call the function and pass in the CSS file name.
< script type = "text/javascript" >
<!--
function x(y) {
var styles = y;
var newSS = document.createElement('link');
newSS.rel = 'stylesheet';
newSS.href = 'data:text/css,' + styles;
document.getElementsByTagName("head")[0].appendChild(newSS);
}
if ((screen.width >= 1024) && (screen.height >= 768)) {
x('file.css');
}
else {
x('file1.css');
}
//-->
< /SCRIPT>

If "document_height" not work, try "window_height" i comment it in code!
$("link").attr("href", "css_file_path"); // here must insert path to your css, replace it in the code below
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.5.1/jquery.min.js" ></script>
<script type="text/javascript">
$(document).ready(function(){
document_height = $(document).height();
//window_height = $(window).height();
//if(window_height > 600){
if(document_height > 600){
alert('Bigger than 600px height: ' + $(document).height());
$("link").attr("href", "600+.css"); // Here load css if window is bigger then 600px;
} else {
alert('Smaller than 600px height: ' + $(document).height());
$("link").attr("href", "600-.css"); // Here load css if window is smaller then 600px;
}
});
</script>