Replacing a wall switch should be trouble-free!? This should be an easy one. Trying to replace a bleak...

This should be an easy one.
Trying to replace a bleak wall light switch surrounded by the bathroom. Only when my husband removed the plate and unscrewed the switch, the switch is mounted on a metal box with NO perceptible means of attaching that box to the wall what so ever.
Who ever lived here beforehand us, jamed duct tape and cardboard contained by the space to wedge the piece in place.
I'd close to to do it the right way. Tried inquiring the web but cannot find ANYTHING!
Is near another metal box the switch box is supposed to sit in that certainly attaches to the wall? If so, what is it called?

If you find any tutorial (with pictures) that would be courteous.
Post the URL.
Thanks.
Go to your local home/hardware store and grasp a new grip for the switch.
They come in "existing" or "untried construction"

You can utilize the existing hole with a affix in box.
Run the wires matching way they come off the impossible switch.

Otherwise, you have to cut a up to date hole, allign the switch, do all the drywall patching and after repaint.
You can replace the existing box near a new box made for freshly that purpose. You will need to grasp a new box explicitly typically labeled for "Old Work". You can get these at any hardware or big box store. The enjoy tabs on disparate corners that when you tighten the screw, the tabs move outward and put pressure on the drywall to save it from moving.

First, turn the power off. Remove the switch and box and adjectives other foreign material. Make sure you don't lose the wires contained by the wall. Insert the wires in the box consequently install the box into the opening. Tighten the tab screw and you're off and running. Feel free to email me next to any other questions. Good luck.
Answers:    this page should help you out next to step by step directions. between the "old work" box and a exotic switch you will be lucky if you have three bucks invested into this fix
http://www.hammerzone.com/archives/elect...
you can go to the hardware and pick up a blue switch box that go in the hole and it have a fliper on two corners and when you turn the screws the fliper locks the boxs within place, ask for the switch boxs for instaling in drywall in need doing anything except cutting the hole! Don't forget to nurture the wire into one of the nockouts, biddable luck!