Can you lock Sony Ericsson W705 so people will not be able to read your messages?

by way of example you simply press your button on BlackBerry Necessities 8520 then screen will go off and when you want to uncover it you should type inside a password.However , you don’t go out the phone

May i do a similar with w705 or maybe what phone regarded as a get therefore people would not read emails because occasionally i leave the unit on the desk plus some people get run far from me and read stuff for just a joke (sad isn’t it).I think it’s frustrating.

A SCREEN FASTEN:D
may i lock the screen with w705 or is it just BlackBerry blackberry curve 8520, HTC, Samsung types of phones many thanks.

To lock the unit go that will
http://www.sonyericsson.com/cws/support/phones/detailed/phonelockcodeissues/w705lc=en&cc=pk.