sliding windows in a garage door

[HoosierMark]

Does anybody have sliding windows in their garage door? I was thinking how nice it would be to keep the door closed and yet have venitlation and screens. I have never seen them but it seems like a neat idea. I am thinking of something similar to sliding basement windows, long and narrow say two per section.

 

[Dustball]

I'd look into camper windows or truck topper windows. They're thinner and lighter and are intended for mounting in thin surfaces.

http://parts.mirageinc.com/rv-window-30x22-roadside