Hi used various scripts to preload/fade in images, however i dont know how to preload the contents of a whole div, then fade it in.

The structure is:
HTML Code:
<div id="maindiv">
<div class="loader"></div>
<div id="topbanner"></div>
Ive used the 'maindiv' to retain the structure of the page.
The 'topbanner' div has a background image and numerous child divs and via css its display is initially hidden.
In the page ive linked jquery and jquery.easing

Could someone point me in the right direction..thanks in advance