Turn Wifi on/off for iphone from an application

I need to turn on or off the wifi in the iphone. Any ways开发者_如何学编程 of doing it? Or is it forbidden (private framework)

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All applications written with the public SDK are sandboxed. They only have access to the properties and data which Apple deems feasible to use within that sandbox. I am afraid Wi-fi doesn't come in the list

Pls take a look at this SO question iPhone Wi-Fi Manager SDK and this discussion