forwarding requests to another proxy

Is it possible to proxy chain with squid? I'd like to be able to
point my squid proxies to another box when my primary internet
connection goes down.

Any ideas?

Thanks,

Jay

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James P. Anderson III         anderson@optical.bms.com
Principal Network Engineer                       N3JMC
Bristol-Myers Squibb Pharmaceutical Research Institute
Princeton, NJ 08543               Work: (609)-252-6039