Effects pedal(s) for Bee Gees "Night Fever)

I've got the chords worked out for "Night Fever," but can't figure out what effects pedals are being used. Assume a "wah-wah" is involved, but "what else?" Also, is one guitar playing just chords and another guitar providing the effects?" Would appreciate any assistance as our group would like to incorporate the song into our playlist. Jim C.