Great Tentacle!

This is a great tentacle rig written by Felix Joleanes. The only issue I have with it is that It would be nice if the sin wave worked on more that one axis, ex: x,y,z
If anyone could help me figure out how to make this adjustment to this script that would be awesome! Either way it is a powerful script for using bones to rig a tentacle. I am planning to use a blend bone between this wave rig by Felix and an Ik system. If anyone could help me out that would be GREAT!
-Enjoy