Switching between networks with a laptop

Switching between networks with a laptop

I currently switch between three different networks using my laptop. One
at home, my office in Sydney and my office in Hong Kong.
All three require different network settings and configurations. I am
trying to find the easiest method for switching between these networks and
modifying my IP settings. I am currently playing around with netsh using
bat scripts but can't seem to get it right.
NETWORK 1 (HOME): Requires auto (DHCP) IP settings with auto-detect proxy
enabled.
NETWORK 2 (SYD): Requires manual (static) IP settings and manual proxy
configured.
NETWORK 3 (HK): Requires manual (static) IP settings with auto-detect
proxy enabled.
I would prefer to have three separate bat files, one for each location,
which will give me the desired IP configuration depending on what
networking I am connecting to.