russian text message

[joho07]

so as i dont have the cyrillic alphabet on my phone, i was wondering how to write a text message in russian. i know you can write the words as they sound, but i know there is also a way of using latin letters and symbols to write in cryllic.

хорошо, а у тебя?

could be...
harasho, a u tebya?
OR
xopowo, a y tebR?

am i doing this right? does anyone actually do this? if so, is there anywhere i could find some kind of chart of this?

спасибо!