1994 Honda Accord Clutch is at the floor.

I bought it about a year ago and the clutch has only given me problems when I didn't have the resvior filled. Yesterday I went over a friend's house down the street and slept over. When I woke up this morning I got in and pressed the clutch down and it stuck to the floor with no intention to push itself back in position. I asked around and was told that with the clutch not springing back into it's usual position. It could be the master cylinder. Is this true? I topped of the resevior and tried again. Starting the car, manualy pulling the clutch pedal back into position. And when I pushed on it again it fell straight to the floor with yet again no intention of coming back off the floor towards me.