here is a good workout, and if strenghtmonster is right, do us a favor and don't ask again.
1/ do 10 one minute set of jumping rope with 45 sec of rest in between\
2/ do 4 sets of box jumps, as many rep as you feel comfortable with
3/ place a weight bench in the middle of some empty space, and work at leaping form side to side over it.
this will help your vertical leap greatly, if done around twice a week