|It may be too late now, but take it into a professional and explain what happened.|
The FIRST thing I would have recommended was to take out the battery and do not turn it on until you were sure that all of the insides were clean and dry. Water, especially when it has dirt, salt and certain other materials dissolved in it can cause electricity to jump from one part of a circuit board to another causing higher than normal voltages to some sensitive components which can damage them. The laptop or notebook that has gotten wet on the inside like yours has needs to be opened completely and all surfaces need to be dried off and then all circuits boards need to be wiped with rubbing alcohol to clean them. switches and plug jacks as well as plugs and other contacts can be dried with compressed air can and then cleaned with a contact cleaner or tuner cleaner (plastic safe type) spray. Optical drives will be harder and if anything was able to get actually inside of your hard drive, nearly impossible. This is why I said take it to a pro who has some experience with this.
You have to be a little bit crazy to keep you from going insane.