next line in a text box???

[Frescono]

im trying to make a form that converts 4 input text boxes
into one text box called message.
i cant figure out how to make it go to the next line..

example:
a person will fill out there info name,lastname,email.
The var message ends up looking like this:
TomJacksonTJ@whatever.com
I want it to look like this:
Tom
Jackson
TJ@whatever.com

This is what i have so far..

on (release) {
message = txt1+txt2+txt3+txt4;
}

[mkantor]

Insert newline characters:

message = txt1 + "\n" + txt2 + "\n" + txt3  "\n" + txt4;