Spilled water on MacBook Pro, backlight won't work.

I spilled water on my MacBook, and turned it off immediately. When I tried to turn it back on, the screen is black(although the computer itself boots up). Also, the LED flashes three times. Is there anything I can do to fix it? Or if not would it be possible to hook it up to an external monitor, or somehow access the hard drive to recover some files?

Thanks in advanced.