no zk connection timeout in consumer config of kafka 0.7?

Hi,

In http://kafka.apache.org/08/configuration.html, there are 2 parameter
about zk in consumer.

zookeeper.session.timeout.ms 6000 Zookeeper session timeout. If the
consumer fails to heartbeat to zookeeper for this period of time it is
considered dead and a rebalance will occur. zookeeper.connection.timeout.ms
6000 The max time that the client waits while establishing a connection to
zookeeper.

But in kafka 0.7 http://kafka.apache.org/07/configuration.html, there is no
config about zk conntection.

What is the default value?