I am loading data from external html files within my domain into a div on my webpage using a load content method in jQuery. I take the div out of the new page whilst hiding
all you have to do is make the wrapper(style) around the element(#outer(has background png)) fade the opacity to 1.0 in js file. works great!
ex:
js file:
$('#style').fadeIn('slow');
css file:
#style { margin:0; background:transparent; float:left; }