How can I adjust the clutch cable?

I have to have the clutch pedal pushed all the way to the floor to shift, and getting into reverse it a bit of a pain. Where can I adjust the cable to give me a higher release point on the pedal?
Comments
the adjuster is just under the battery on the lever on the transmission. double check your pedal box, not to sound like a dink, but i've broken 2 of them.
anyway, visually didnt look broken till i took it off. so check it out