My chickens quit laying eggs several weeks ago what do you do to make them lay again?

Hens often times quit laying eggs if they are in molt, It is to cold, or they are old. If it is cold where you live try giving them a heat lamp in the coop. If they are in molt you will have to wait until they are done. When hens get old they quit laying and are just cute pets! There are lots of good chicken sites on-line. Just goggle "raising chickens" and you should get tons of info.