I’ve see an example at http://css-tricks.com/perfect-full-pa… of a jQuery method that should work but I’m having trouble implementing it. Is this even possible or am I wasting my time?

Here is some of their sample code:

jQuery Method

This whole idea becomes a lot easier (from a CSS perspective) if we know if the aspect ratio of the image (inline we intend to use as a background) is larger or smaller than the current aspect ratio of the browser window. If it is lower, than we can set only the width to 100% on the image and know it will fill both height and width. If it is higher, we can set only the height to 100% and know that it will fill both the height and width.

We have access to this information through JavaScript. As usual around here, I like to lean on jQuery.

#bg { position: fixed; top: 0; left: 0; }

.bgwidth { width: 100%; }

.bgheight { height: 100%; }

$(window).load(function() {

var theWindow = $(window),

bg = ("#bg"),

aspectRatio = $bg.width() / $bg.height();

function resizeBg() {

if ( (theWindow.width() / theWindow.height()) < aspectRatio ) {

$bg

.removeClass()

.addClass(‘bgheight’);

} else {

$bg

.removeClass()

.addClass(‘bgwidth’);

}

}

theWindow.resize(function() {

resizeBg();

}).trigger(“resize”);

});

This doesn’t account for centering, but you could definitely alter this to do that. Credits to Koen Haarbosch for the concept behind this idea.

Works in:

IE7+ (could probably get in IE6 with a fixed position shim)

Most any other desktop browser