Is the pedal completely loose or is there some resistance when you try to lift it up ?. If it's loose then check the hydraulic master cylinder push rod is connected to the pedal. A small metal clip holds the pushrod from the cylinder onto the pedal and it's known to break. You can see if you look down in the footwell.
If there is resistance when raising the pedal then it's probably clutch hydraulic problems rather than the clutch itself. Have you checked brake fluid level ? Any sign of leaking brake fluid under the gearbox ? Either way, if you're not mechanically minded, sounds like a garage job.
Last edited by Alexie; 11-02-10 at 17:03.