Because browsers don't load a page in parallel, I want to use a subdomain to host images.
A little explanation:
My blog is running on http://www.virtuallifestyle.nl. I want to have all images and other uploaded material to be hosted at img.virtuallifestyle.nl to speed up page loading.
When I upload media with the WordPress WYSIWYG editor -> 'Add Media', it defaults the uploaded media to http://www.virtuallifestyle.nl. How can I change the WordPress configuration, so that all media loaded from img.virtuallifestyle.nl?
Both www. and img. are hosted on the same server / apache. The images subdomain is actually a 'ServerAlias' in the Apache vhost configu.