After deactivation, your timeline and other information about you will vanish from Facebook. All your material will come back as soon as you reactivate your account.
Disable Facebook
1. Go to Facebook, then enter your email address and password. Click "Log In."
2. Click the "Account" gear icon, then click "Account Settings."
3. Click on "Security," then click "Deactivate Your Account" near the bottom of the Security Settings page.
4. Select the reason for the deactivation, such as "This is short-lived. I'll be back."
5. Click the check box beside "Pull out of receiving future e-mails from Facebook" if you do not wish to receive Facebook e-mails after deactivation. If you don't pull out, you will still get event and group invites from your friends.
6. Click "Verify" to shut down the account.
Idea
To reactivate the account, you just have to log back in with your email address and password Disable Facebook.