OS X Safari: Toggle Socks Proxy from command line

I need to toggle back and forth between engaging and disengaging a socks proxy within Safari: > Next open safari and click on "safari" in the top left menu bar to > open the drop down menu and then click on preferences. You can do the > same thing by pressing CMD+,. Click on the advanced tab and find > "Proxies", click "Change Settings". System Preferences should open and > you can now select "SOCKS Proxy". You should be setup and if you check > google for your IP it should be masked by the address that you're > SSH'd into. Note this is system wide and will cover all network > communications. You can turn this off by unselecting the SOCKS Proxy. Is it possible to perform this task with a script? Bonus round: add button or menu item to Safari UI to execute proxy toggle. Any feedback to clarify question is appreciated.