Nikon lens water damage

I went to shoot pictures and videos in forest water stream and i took the tripod and the camera fell from the tripod because the above part of the tripod disattached somehow and my camera fell on rocks and the lens diasattached from the camera and jumped into the stream. I ran i took it from the stream. But now inside the camera lens have water drops and fog condensation. The camera is fine it works and the lens works but it can't shoot because it can't focus from the fog. What to do to remove the
water drops and condensation. Please help in two weeks i have a prom and i have to take some pictures.

Try placing the lens in a bowl of uncooked white rice and let it set a few days. However, chances are the lens is ruined and will have to be replaced.

The lens is dead. You can dry it out as Edwin suggests but the water won't be pure and will leave a dirty residue on the inner surfaces.

Just curious, about how much did the tripod cost? Was it a bargain?

Of course even a $1000 tripod could send your camera flying if the quick release is not positioned correctly.

Since (surprisingly) your body still works, and your lens is kaput, this could be an opportunity to upgrade. This could be a worthwhile investment, and it should be a good lens for prom photos
http://www.bhphotovideo.com/...EX_DC.html
http://slrgear.com/...329/cat/31

If the budget is too tight for that, if you can live with the challenge of working with a single focal length, your best choice would probably be the 35mm f1.8 DX AF-S.
http://www.bhphotovideo.com/..._1_8G.html
http://slrgear.com/...243/cat/12

If the lens is salvagable, you'll need to take it in for professional repair and cleaning. Stream water, like ocean water, has plenty of other things besides water in it. All that matter and moisture had reached the deepest recesses of the lens and it's not a do-it-yourself repair.