How to make upside down letters & backwards text

uǝɹǝʞןıdn How to make that???

It's easy....
Tutorial :

1. open this web ! : http://www.sevenwires.com/play/UpsideDownLetters.html
2. Make a text that you want to make reversed. Later automatically reverse these writings will appear below the text you type.
3. Copy the text upside down. Paste it on your facebook or your blog.

Thx....