The holidays are no time to be without a dryer.
This problem can be as simple as a door switch, or as major as a bad motor.
If you have a few basic tools I may be able to help you diagnose and repair this problem.
Please reply with a model number for further assistance.
If you do not feel confident repairing this problem yourself, then you can have it repaired at your home by a Sears technician. Here is a link for the website:
Sears Home Services