No. When you post bond or someone pays for you, you pay a lump sum payment to a bondsman in the states or to the court for your parole. This money is held until the trial and is then given back, provided you show up. Zimmerman's bond was for $1,000,000. Presumably, his parents house is worth at least this much, or they had help with the amount as his web page's begging did not come close to this total.