Disable Recieving Shadows for a mesh

Hey guys

So made a water texture based on one of the contect example ones. It looks good, expet that it recieves shadows from the floating meshes above it.

I want to make it so that the water mesh plane won’t recieve any shadows at all. I can’t change the floating blocks, because it might be the case where something bellow them might be there, and they should cast a shadow.

So, how can I do this?

http://puu.sh/bQc4s/2a9f010f9a.jpg

Thanks!