Photoshop :: Transparency On Changing Backgrounds

I want to create transparent gifs for company logos which I can place of different backgrounds on a web page. Now the problem is of course that I will always have some sort of matte color giving me funky pixels on the edge of my logos if the background colors are dramatically different.

What I'm wondering is whether there's some sort of engine or script which can do this for me. Like resample the gif with the background color of the page or giving it the matte of the background color of the page or sth like that.

Or is there any other technique I could use to achieve this?

Basically I want a folder of logos on my server and whichever page they appear on they always blend into the background of the page.