textInput area text

In the parameters of the textInput field you can have words show up in them by default (like name, email, etc.)
What I’m trying to do is have it so when you click on the field these words disappear. As it stands now, when I put a word in the parameter the user would have to erase it and enter in their own.
I’d also like to have it greyed out a bit to, if that’s possible.
Is this an actionscript issue or am I not entering it correctly in the parameters?