to check invi YM user

just found out this things thru d web for YM users
main intention to find out whether this person is still alive or not or just invi from me
before this we just can type thru url
profiles.yahoo.com(ym id)
but now
www.4invisible.com
@
www.inivisible.ir/
inside there u just type the person's name whether he/she online or invi eventhough NOT in ur list
or whether u can believe or not whether that person is really online or offline from U
err..kerr..aku yg ketinggalan zmn br tau benda -alah nie???
gud LuCk!!