My Macbook Pro's mouse pad will not move in some places?

It all started when I got a very bad sunburn, so I took a tea bath to lower the pain. While I was in the tea bath I was watching the apple conference and i wanted to see the demos after the screen had gone black. I touched the pad to wake it up a few times. Now, my had was wet from the tea and i got a few drops on it. Now my mouse will stop moving mid stroke and will spaze out when I'm not. My questions are: Is that why my mouse pad won't move? If so do I need to buy a completely new macbook to fix it or can I buy parts?