Preloading JavaScript Images

[green-watch.org]

Hey There,

What do you guys think about preloading JavaScript images?

http://www.webpagetest.org/result/100623_CYF/1/details/
http://www.webpagetest.org/result/100623_CYH/1/details/

You can see a few different images downloading while the base document is being downloaded.

In the later example that uses FIOS, it looks like it might be beneficial to load all the images in the middle using javascript in the header section with the rest of my images near the top.

Do you guys think it would be best to preload all images in the header? Any thoughts or suggestions?

Thanks in advance.

Sincerely,
Travis Walters