Canon Body to Nikon Lens converter?

I need to buy a converter so that my nikon lens can be used on my canon body.
but the converter must be able to make the nikon lens work like normal (example: the autofocus will still works normally, etc.)
any suggestion? Thanks.

Added (1). Actually i've nikon body also, but i find it better if i can use nikon lens on the canon body.

Added (2). @flying. Which one do you prefer?

Can't be done.

It's technically possible if you don't mind losing AF and most of your exposure modes, but the mounts are too different to give full functionality.

Why did you buy a lens that you couldn't use with your existing body or vice versa?

Buy a Canon lens or a Nikon body.

The converters will only allow the lens to physically mount. Any electrical connections will be lost

And you can buy expensive (1) or cheap (2). You get what you pay for with the cheap one, it seems.

Edit

I've got Canons (400D and 600D), and I'm happy with them. I've never used Nikon DSLR so I can't compare.

If there's such a converter (possibly not) it would not carry all the autofunctions of the Nikon lens to the Canon body. Make up your mind and stick to the one brand or the other.