Make sure you wash it out GOOD. soda is corrosive and if its left on any circuit board or metal that is conductive (like a keyboard receptor thingy) it will destroy it over time. I had soda spilt on an old laptop of mine, i thought i cleaned it out good but as time passed i notice the keyboard wasnt working right. Turned out that the soda had eaten thru some of the connector leads on the keyboard... oh well it was a great excuse for me to get a new Mac lappy
Good luck and clean it out as well as you can 
Ed
Ed