<iframe> text justify exec command

[jacob_kochi]

I am using <iframe> as article editor in my web page

I got following exec commands for text justification

justifyleft--------justifyleft
justifycenter----------justifycenter
justifyright-----------justifyright
justify------------

But i cannot find an exec command which do function similar to <p align="justify">text</p>(MS word justify)

PLease help me