// Insert preloaded image after it finishes loading
$('<img />')
    .attr('src', 'imageURL.jpg')
    .load(function(){
        $('.profile').append( $(this) );
        // Your other custom code
    });

http://jquery-howto.blogspot.com/2009/02/preload-images-with-jquery.html

This script preloads images in your document or lets your to preload images by their url and insert or append them in your DOM tree later.

jQuery Preload Images

javascript, jquery

jQuery