Civic 2005 alarm help.

[R66bby]

Hey guys, Iv just returned back from my honeymoon and the civic's battery was flat. I charged it back up, and now the alarm wont stop.
The remote locking doesn't do anything from the remote, but if i put the key in the lock it does unlock all the doors. I can start the car, but the alarm is going off and the hazard lights go crazy.

I have had a google, and tried everything that i have found. Just hoping somebody on here knows what can be done.

Thanks