Soundproofing my window

[Motep]

Put a think blanket onto your window, and then take an aggshell foam mattress thingie and cut it to the dimension of your window, and put it in place. Then, you put a thick curtain on your side, and match up all tyhe results by placing a dresser in front of the window. Should keep out the noise, if you dont have a dresser, the rest should work.

EDIT:And, of course, you could match this up with the fan as usggested...