If you are in crisis, and need immediate support or intervention, call, or go the website of the National Suicide Prevention Lifeline  (1-800-273-8255). Trained crisis workers are available to talk 24 hours a day, 7 days a week. Your confidential and toll-free call goes to the nearest crisis center in the Lifeline national network. These centers provide crisis counseling and mental health referrals. If the situation is potentially life-threatening, call 911 or go to a hospital emergency room.

http://www.nimh.nih.gov/health/find-help/index.shtml