Five easy questions

[greymule]

Please forgive some dumb questions from a baseball/softball umpire, but I can't seem to find answers in my NCAA football rule book:

1. Exactly what does the winner of the coin toss get to choose? If he chooses to receive, does the other captain get to choose which direction he will kick?

2. Can the winner of the toss choose which goal to defend, and if he so chooses, does the other captain choose whether to kick or receive?

3. If Team A is moving east to west in the first quarter, does Team A always move west to east in the second and third quarters and then east to west in the fourth? Or are there some circumstances in which this order can be changed?

4. A team scores a touchdown to tie the game as the clock runs out. However, before they can kick the extra point to win, rowdy fans tear down the goalposts. Can the refs move the extra point try to the other end of the field? What if both sets of posts are torn down? Can the refs stand where the goalposts were and judge the kick? Can they move the point try to a practice field?

Thanks!