Carl,
I hope I understand your question... If you are trying to get back to the Forum body, then click on, either at the top of the post or at the bottom:
TroubleFreePool.com Forum Index
If you want to go back into the same category you were just in, then click on the category just past the "TroubleFreePool.com Forum Index" ->
suggestion box
As you run your mouse over each one, they will change color. I trust that answers your question.