Access.js

var abi = [{"constant":false,"inputs":[{"name":"_edad","type":"uint8"}],"name":"setAge","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"getAge","outputs":[{"name":"","type":"uint8"}],"payable":false,"stateMutability":"view","type":"function"},{"inputs":[],"payable":false,"stateMutability":"nonpayable","type":"constructor"}]
var manager = eth.contract(abi);
var simple = manager.at("0x1932c48b2bf8102ba33b4a6b545c32236e342f34");