can't slide to unlock? My co-worker dropped her iphone 3gs in the toilet. She did the most logical thing and went out and got another one. She said I could have the iphone she dropped in the toilet. The phone will turn on and go to the main screen but the touch screen doesn't work and therefore I can't slide to unlock. I've looked for the red liquid indicators and I believe I can see the one for the docking port but the one for the headphone jack I do not see.

Is this a simple fix or can it be fixed?