Question
Hi, knowing nothing about Orchids we put ours in the bathroom where it seems happy. It is just now coming to the end of a 5 month flower cycle, but for the past 2 months it appears to have been growing roots halfway up a main spike.
There are now leaves coming from the same place, it looks a bit like a new plant growing from the old one.
basically, what should I do (if anything)?

Answer
Al, the thing to do following a flowering cycle is to repot the plant in fresh orchid potting mix.  Locate a source for the potting mix and purchase a small bag.  Soak about as much as you think you'll need in room temperature water while you unpot your plant.  Rinse off the roots and remove any that have collapsed so, when you repot, You are repotting just the healthy roots.  Soak the roots for a few minutes until they are green and then insert the root while you rotate the plant so they follow a path along the inside walls of the pot.  Be sure that the plants roots fit comfortably into the pot and the pot has lots of air holes in the bottom. If you have lot of healthy roots, you may need a somewhat larger pot. The purpose of soaking the roots is to make them less brittle and less prone to break.  Once you have the roots in the empty pot You can try to work any air roots into the pot but if you have to bend them a lot to get them into the pot, leaving them outside of the potting mix is probably best. Set the repotted plant in your growing area and do not water for a week before resuming your usual watering and feeding routine.

If the roots coming from the flower spike are coming from a node (ie joint) in the flower spike, this is called a keiki.  There should also be leaves coming from that location.  When the leaves are at least two inches in length, you may remove the plant from the old flower spike and pot it up separately.