FOOT POSITIONING FOR THROW-INS

Question:
I am confused about the rules of your feet for throw-ins. Do you have to have 2 in completely or what? Thank you!

Answer (October 14, 2014):
Here are some illustrations of foot positioning that is allowed or not allowed. The shaded areas indicate where the thrower’s foot touches the ground.

Foot positioning for throw-in
Foot positioning for throw-in