Changing splashscreen image?

Is there an easy way to alter the login "splashscreen" from the default "netgear stora" image??

I have seen OpenStora.com, but I'm not into modding my office stora...

Just would like to see my company logo at the login screen instead of the netgear dealio...

Is this at all possible? I would think it would just take altering the "index" file the stora uses and a small .jpg file..

Thanks!