auto proxy config for 10.0.* only (setup using ssh -D)

proxy.pac

// ssh -D 1080 remotehost
// save this file as something like /usr/local/etc/proxy.pac
// point your browser auto proxy config to this as file:///usr/local/etc/proxy.pac
function FindProxyForURL(url, host) {
    PROXY = "SOCKS localhost; DIRECT"

    // Apple.com via proxy
    if (shExpMatch(host,"10.0.*")) {
        return PROXY;
    }
    // Everything else directly!
    return "DIRECT";
}