function FindProxyForURL(url, host)
{
    if (isPlainHostName(host) || 
	dnsDomainIs(host, ".rchland.ibm.com") || 
	( host == "127.0.0.1" ) ||
        ( host == "9.89.160.241" ) ||
	(dnsDomainIs(host, ".ibm.com") && isInNet(host, "9.0.0.0", "255.0.0.0"))) {
            return "DIRECT";
    } else {
	    now = new Date();
            x = now.getSeconds() % 2;
	    if (x == 0) {
	            return "PROXY w3proxy-a.rchland.ibm.com:81; PROXY w3proxy-b.rchland.ibm.com:81; SOCKS socks1b.rchland.ibm.com:1080";
	    } 
            if (x == 1) {
	            return "PROXY w3proxy-b.rchland.ibm.com:81; PROXY w3proxy-a.rchland.ibm.com:81; SOCKS socks1c.rchland.ibm.com:1080";
	    }
    }
}
